* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Authenticated identity entry and personal center */
body.personal-center-open { overflow: hidden; }

#lobby-screen .identity-menu {
    position: relative;
    z-index: 1250;
}

#lobby-screen .identity-trigger {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr) 84px 8px;
    align-items: center;
    gap: 10px;
    min-width: 268px;
    min-height: 68px;
    padding: 6px 10px 6px 7px;
    border: 1px solid var(--shell-border);
    border-radius: max(10px, var(--shell-radius));
    background: color-mix(in srgb, var(--shell-surface-2) 88%, transparent);
    color: var(--shell-text);
    cursor: pointer;
    list-style: none;
    box-shadow: 0 10px 28px color-mix(in srgb, var(--shell-bg) 20%, transparent);
}

#lobby-screen .identity-trigger::-webkit-details-marker { display: none; }
#lobby-screen .identity-trigger:hover,
#lobby-screen .identity-menu[open] .identity-trigger { border-color: var(--shell-accent); }

.identity-avatar {
    --identity-frame-color: var(--shell-accent);
    position: relative;
    display: inline-grid;
    flex: 0 0 auto;
    width: 46px;
    height: 46px;
    place-items: center;
    border: 2px solid color-mix(in srgb, var(--identity-frame-color) 72%, white);
    border-radius: 50%;
    background: var(--shell-surface-2);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--identity-frame-color) 26%, transparent);
}

.identity-avatar img {
    width: 100%;
    height: 100%;
    border-radius: inherit;
    object-fit: cover;
}

.identity-avatar[data-frame="adventure-glow"] { --identity-frame-color: #8ff0cc; box-shadow: 0 0 0 3px rgba(143, 240, 204, .2), 0 0 18px rgba(143, 240, 204, .48); }
.identity-avatar[data-frame="starlight-ring"] { --identity-frame-color: #b8c9ff; border-style: double; border-width: 4px; box-shadow: 0 0 0 2px rgba(184, 201, 255, .25), 0 0 20px rgba(142, 203, 255, .48); }
.identity-avatar[data-frame="campfire-ember"] { --identity-frame-color: #ff9f5b; box-shadow: 0 0 0 3px rgba(255, 159, 91, .18), 0 0 18px rgba(255, 120, 60, .55); }

.identity-trigger-copy { display: grid; min-width: 0; align-content: center; gap: 3px; text-align: left; }
.identity-trigger-copy strong { overflow: hidden; color: var(--shell-text); font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }
.identity-trigger-copy small { color: var(--shell-muted); font-size: 11px; }
.identity-trigger-title { order: -1; width: 100%; min-height: 30px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.identity-chevron { width: 8px; height: 8px; margin-left: auto; border-right: 2px solid var(--shell-muted); border-bottom: 2px solid var(--shell-muted); transform: rotate(45deg) translateY(-2px); transition: transform 160ms ease; }
.identity-menu[open] .identity-chevron { transform: rotate(225deg) translate(-2px, -2px); }

#lobby-screen .identity-menu-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 1300;
    width: min(270px, calc(100vw - 28px));
    padding: 9px;
    border: 1px solid var(--shell-border);
    border-radius: max(10px, var(--shell-radius));
    background: color-mix(in srgb, var(--shell-surface) 96%, transparent);
    box-shadow: 0 24px 70px color-mix(in srgb, var(--shell-bg) 54%, transparent);
    backdrop-filter: blur(18px);
}

#lobby-screen .identity-menu:not([open]) > .identity-menu-panel { display: none; }
.identity-menu-summary { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; padding: 8px 9px 12px; border-bottom: 1px solid var(--shell-border); }
.identity-menu-summary > span:last-child { display: grid; gap: 3px; min-width: 0; }
.identity-menu-summary strong { overflow: hidden; color: var(--shell-text); text-overflow: ellipsis; white-space: nowrap; }
.identity-menu-summary small { color: var(--shell-muted); }
.identity-avatar-small { width: 38px; height: 38px; }
.identity-menu-panel > button { width: 100%; min-height: 38px; padding: 0 11px; border: 0; border-radius: max(6px, calc(var(--shell-radius) * .6)); background: transparent; color: var(--shell-text); cursor: pointer; font: inherit; text-align: left; }
.identity-menu-panel > button:hover,
.identity-menu-panel > button:focus-visible { background: var(--shell-surface-2); color: var(--shell-accent); outline: none; }
.identity-menu-panel > button[hidden] { display: none; }
.identity-menu-panel > hr { margin: 6px 4px; border: 0; border-top: 1px solid var(--shell-border); }
.identity-menu-panel > .identity-menu-danger { color: #d85d5d; }

.personal-center-layer { z-index: 1800; padding: 20px; background: color-mix(in srgb, var(--shell-bg) 60%, transparent); backdrop-filter: blur(8px); }
.personal-center-modal { width: min(980px, calc(100vw - 40px)); max-width: none; height: min(720px, calc(100dvh - 40px)); max-height: none; padding: 0; overflow: hidden; border: 1px solid var(--shell-border); background: var(--shell-surface); box-shadow: 0 34px 100px color-mix(in srgb, var(--shell-bg) 60%, transparent); }
.personal-center-heading { display: flex; align-items: center; justify-content: space-between; min-height: 78px; padding: 17px 22px; border-bottom: 1px solid var(--shell-border); background: linear-gradient(110deg, color-mix(in srgb, var(--shell-accent) 9%, transparent), transparent 52%); }
.personal-center-heading h2 { margin: 3px 0 0; }
.personal-center-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); height: calc(100% - 78px); min-height: 0; }
.personal-center-nav { display: grid; align-content: start; gap: 6px; padding: 18px 12px; border-right: 1px solid var(--shell-border); background: color-mix(in srgb, var(--shell-surface-2) 72%, transparent); }
.personal-center-nav button { display: grid; gap: 3px; min-height: 62px; padding: 10px 13px; border: 1px solid transparent; border-radius: max(7px, calc(var(--shell-radius) * .7)); background: transparent; color: var(--shell-text); cursor: pointer; font: inherit; text-align: left; }
.personal-center-nav button small { color: var(--shell-muted); font-size: 11px; }
.personal-center-nav button[aria-selected="true"] { border-color: color-mix(in srgb, var(--shell-accent) 54%, var(--shell-border)); background: color-mix(in srgb, var(--shell-accent) 12%, var(--shell-surface-2)); color: var(--shell-accent); }
.personal-center-content { min-width: 0; overflow: auto; scrollbar-color: var(--shell-accent) var(--shell-surface-2); }
.personal-panel { min-height: 100%; padding: clamp(18px, 3vw, 30px); }
.personal-panel[hidden] { display: none; }
.personal-profile-hero { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 18px; padding: 20px; border: 1px solid var(--shell-border); border-radius: var(--shell-radius); background: linear-gradient(120deg, color-mix(in srgb, var(--shell-accent) 12%, var(--shell-surface-2)), var(--shell-surface-2)); }
.personal-profile-avatar { width: 72px; height: 72px; }
.personal-profile-hero h3 { margin: 3px 0; color: var(--shell-text); font-size: clamp(22px, 4vw, 32px); }
.personal-profile-hero p:last-child { margin: 0; color: var(--shell-muted); font-size: 12px; overflow-wrap: anywhere; }
.personal-profile-hero > strong { color: var(--shell-accent-2); font-size: 24px; }
.personal-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; margin: 14px 0 24px; }
.personal-facts article,
.personal-equipped-list article { display: grid; gap: 6px; min-width: 0; padding: 13px; border: 1px solid var(--shell-border); border-radius: max(7px, calc(var(--shell-radius) * .7)); background: var(--shell-surface-2); }
.personal-facts span,
.personal-equipped-list span { color: var(--shell-muted); font-size: 11px; }
.personal-facts strong { color: var(--shell-text); font-size: 17px; overflow-wrap: anywhere; }
.personal-section-heading,
.personal-reward-group-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; }
.personal-section-heading h3 { margin: 3px 0 0; color: var(--shell-text); }
.personal-section-heading > span { max-width: 340px; color: var(--shell-muted); font-size: 12px; text-align: right; }
.personal-equipped-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 12px; }
.personal-equipped-list strong { color: var(--shell-text); overflow-wrap: anywhere; }

#personal-panel-personalization .personal-theme-controls { position: static; width: auto; margin-top: 22px; padding: 20px; grid-template-columns: repeat(2, minmax(0, 1fr)); box-shadow: none; }
#personal-panel-personalization .personal-theme-controls label { gap: 9px; }
#personal-panel-personalization .personal-theme-controls select { min-height: 46px; }
.personal-reward-status { min-height: 20px; margin: 10px 0 0; color: var(--shell-accent); font-size: 12px; }
.personal-reward-groups { display: grid; gap: 24px; margin-top: 8px; }
.personal-reward-group-heading { margin-bottom: 9px; }
.personal-reward-group-heading h4 { margin: 0; color: var(--shell-text); }
.personal-reward-group-heading span { color: var(--shell-muted); font-size: 12px; }
.personal-reward-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.personal-reward-card { --reward-color: var(--shell-accent); display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; min-width: 0; padding: 11px; border: 1px solid var(--shell-border); border-radius: max(7px, calc(var(--shell-radius) * .7)); background: var(--shell-surface-2); }
.personal-reward-card.is-equipped { border-color: var(--reward-color); box-shadow: inset 3px 0 var(--reward-color); }
.personal-reward-card.is-locked { opacity: .58; }
.reward-card-icon { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid color-mix(in srgb, var(--reward-color) 55%, var(--shell-border)); border-radius: 50%; color: var(--reward-color); background: color-mix(in srgb, var(--reward-color) 10%, transparent); }
.personal-reward-card > div { display: grid; gap: 2px; min-width: 0; }
.personal-reward-card strong { overflow: hidden; color: var(--shell-text); text-overflow: ellipsis; white-space: nowrap; }
.personal-reward-card small { color: var(--shell-muted); font-size: 11px; }
.personal-reward-card button { min-height: 32px; padding: 0 10px; border: 1px solid var(--shell-border); border-radius: 6px; background: var(--shell-surface); color: var(--shell-text); cursor: pointer; }
.personal-reward-card button:not(:disabled):hover { border-color: var(--shell-accent); color: var(--shell-accent); }
.personal-reward-card button:disabled { cursor: not-allowed; opacity: .66; }

@media (max-width: 760px) {
    .personal-center-layer { padding: 8px; }
    .personal-center-modal { width: calc(100vw - 16px); height: calc(100dvh - 16px); }
    .personal-center-heading { min-height: 66px; padding: 12px 14px; }
    .personal-center-layout { grid-template-columns: 1fr; grid-template-rows: auto minmax(0, 1fr); height: calc(100% - 66px); }
    .personal-center-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 8px; border-right: 0; border-bottom: 1px solid var(--shell-border); overflow-x: auto; }
    .personal-center-nav button { min-height: 44px; padding: 8px; text-align: center; }
    .personal-center-nav button small { display: none; }
    .personal-panel { padding: 14px; }
    .personal-profile-hero { grid-template-columns: auto minmax(0, 1fr); padding: 14px; }
    .personal-profile-avatar { width: 56px; height: 56px; }
    .personal-profile-hero > strong { grid-column: 1 / -1; font-size: 17px; }
    .personal-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .personal-equipped-list,
    .personal-reward-grid,
    #personal-panel-personalization .personal-theme-controls { grid-template-columns: 1fr; }
    .personal-section-heading { align-items: flex-start; flex-direction: column; }
    .personal-section-heading > span { text-align: left; }
}

@media (max-width: 520px) {
    #lobby-screen .identity-trigger { min-width: 0; }
    .identity-trigger-copy { max-width: none; }
    .personal-reward-card { grid-template-columns: auto minmax(0, 1fr); }
    .personal-reward-card button { grid-column: 1 / -1; }
}

@media (max-width: 360px) {
    #lobby-screen .identity-trigger {
        grid-template-columns: 42px minmax(0, 1fr) 76px 8px;
        gap: 7px;
    }
    #lobby-screen .identity-trigger .identity-avatar { width: 42px; height: 42px; }
    #lobby-screen .identity-trigger .social-vocabulary-chip { width: 76px; min-width: 76px; }
}

:root {
    --shell-bg: #071713;
    --shell-surface: #10251f;
    --shell-surface-2: #17352c;
    --shell-text: #f2f7e9;
    --shell-muted: #9eb6a8;
    --shell-accent: #39d39f;
    --shell-accent-2: #f0c96a;
    --shell-border: #315448;
    --shell-radius: 14px;
    --shell-font: "Microsoft YaHei", sans-serif;
    --shell-panel-image: none;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container {
    width: 100%;
    max-width: 1400px;
    padding: 20px;
}

.screen {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* 配置界面 */
#room-config {
    max-width: 500px;
    margin: 0 auto;
}

#room-config h1 {
    text-align: center;
    color: #667eea;
    margin-bottom: 30px;
}

.config-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.config-panel label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
}

.config-panel input,
.config-panel select {
    padding: 8px 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    width: 200px;
}

.config-panel button {
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s;
}

.config-actions {
    display: flex;
    gap: 12px;
}

.config-actions button {
    flex: 1;
}

.secondary-button,
.small-button {
    background: #425466 !important;
}

.secondary-button:disabled,
.small-button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.config-panel button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 游戏主界面 */
#game-screen {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 100%;
}

#save-controls {
    position: absolute;
    top: 20px;
    right: 190px;
    display: flex;
    gap: 8px;
    z-index: 100;
}

.small-button {
    min-height: 40px;
    padding: 0 14px;
    border: 0;
    border-radius: 8px;
    color: #fff;
    cursor: pointer;
    font-weight: bold;
}

body.game-active #game-info {
    display: flex;
    justify-content: space-around;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    flex-wrap: wrap;
    gap: 10px;
}

.info-item {
    font-weight: bold;
    color: #555;
}

.info-item span:last-child {
    color: #667eea;
}

.current-word-status {
    display: flex;
    min-width: 230px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #334553;
}

.current-word-status[hidden] {
    display: flex !important;
    visibility: hidden;
}

#current-word-label {
    color: #263746;
}

#current-word-activation {
    color: #34745a;
    white-space: nowrap;
}

/* 画布容器 */
#canvas-container {
    position: relative;
    width: 100%;
    height: auto;
    min-height: 0;
    flex: 1;
    background: #000;
    border-radius: 10px;
    overflow: hidden;
}

#canvas-container::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 45;
    opacity: 0;
    box-shadow: inset 0 0 90px 18px transparent;
}

.global-event-panel {
    position: relative;
    z-index: 2;
    display: grid;
    width: 100%;
    min-width: 0;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    padding: 6px 0 0;
    border-top: 1px solid color-mix(in srgb, var(--game-ui-border, #315448) 62%, transparent);
}

.global-event-heading {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.global-event-heading > span {
    color: var(--game-ui-muted, #9eb6a8);
    font: 700 9px/1.2 Consolas, monospace;
}

#global-event-cards {
    display: flex;
    min-width: 0;
    gap: 5px;
    padding: 1px 2px 4px;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--game-ui-accent, #39d39f) 45%, transparent) transparent;
}

.global-event-inventory {
    display: flex;
    gap: 5px;
    white-space: nowrap;
}

.global-event-card,
.global-event-inventory :is(span, button) {
    min-height: 25px;
    padding: 3px 8px;
    border: 1px solid color-mix(in srgb, var(--game-ui-muted, #9eb6a8) 32%, transparent);
    border-radius: 999px;
    color: color-mix(in srgb, var(--game-ui-muted, #9eb6a8) 76%, transparent);
    background: color-mix(in srgb, var(--game-ui-surface-2, #17352c) 82%, transparent);
    font-family: inherit;
    font-size: 10px;
    white-space: nowrap;
}

.global-event-card { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 5px; cursor: help; }
.global-event-card i {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}
.global-event-card.is-dormant { opacity: .38; }
.global-event-card.is-pending { opacity: .68; }
.global-event-card.is-triggered,
.global-event-card.is-active { border-color: color-mix(in srgb, var(--game-ui-accent, #39d39f) 72%, white 8%); color: var(--game-ui-accent, #39d39f); background: color-mix(in srgb, var(--game-ui-accent, #39d39f) 13%, var(--game-ui-surface-2, #17352c)); opacity: 1; }
.global-event-card.is-active { box-shadow: 0 0 0 2px color-mix(in srgb, var(--game-ui-accent, #39d39f) 16%, transparent); }
.global-event-card:is(:hover, :focus-visible) { outline: 2px solid color-mix(in srgb, var(--game-ui-accent, #39d39f) 56%, transparent); outline-offset: 1px; opacity: 1; }
.global-event-inventory button { cursor: pointer; border-color: color-mix(in srgb, var(--game-ui-accent, #39d39f) 45%, transparent); }

.global-event-detail {
    position: fixed;
    z-index: 1500;
    display: grid;
    width: min(320px, calc(100vw - 16px));
    gap: 5px;
    padding: 11px 13px;
    border: 1px solid color-mix(in srgb, var(--game-ui-accent, #39d39f) 58%, var(--game-ui-border, #315448));
    border-radius: 9px;
    color: var(--game-ui-text, #f2f7e9);
    background: color-mix(in srgb, var(--game-ui-surface, #10251f) 96%, transparent);
    box-shadow: 0 16px 44px rgb(0 0 0 / 48%);
    font-family: var(--game-ui-font, sans-serif);
    pointer-events: none;
}
.global-event-detail[hidden] { display: none; }
.global-event-detail span,
.global-event-detail small { color: var(--game-ui-muted, #9eb6a8); font-size: 11px; line-height: 1.4; }

@media (max-width: 620px) {
    .global-event-panel { grid-template-columns: auto minmax(0, 1fr); }
    .global-event-inventory { grid-column: 1 / -1; overflow-x: auto; }
    .global-event-heading > span { display: none; }
}

.game-event-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    z-index: 1200;
    display: grid;
    min-width: min(420px, calc(100vw - 40px));
    padding: 22px 34px 24px;
    border: 1px solid color-mix(in srgb, var(--shell-accent-2) 74%, white);
    border-radius: 4px;
    color: #fff8dc;
    background: linear-gradient(115deg, rgba(4, 12, 10, 0.96), rgba(18, 38, 30, 0.94));
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.72), inset 0 0 32px rgba(240, 201, 106, 0.09);
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -42%) scale(0.86);
    transition: opacity 150ms ease, transform 220ms cubic-bezier(0.2, 0.9, 0.25, 1.12);
}

.game-event-overlay::before,
.game-event-overlay::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 54px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--shell-accent-2));
}

.game-event-overlay::before { right: calc(100% + 12px); }
.game-event-overlay::after { left: calc(100% + 12px); transform: rotate(180deg); }
.game-event-overlay.is-visible { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.game-event-overlay span { color: var(--shell-accent-2); font: 800 11px/1.2 Consolas, monospace; letter-spacing: 0.24em; }
.game-event-overlay strong { margin-top: 5px; font-size: clamp(28px, 5vw, 46px); line-height: 1.08; letter-spacing: 0.06em; text-shadow: 0 3px 18px rgba(0, 0, 0, 0.7); }
.game-event-overlay small { min-height: 1.4em; margin-top: 7px; color: color-mix(in srgb, #fff 72%, var(--shell-accent)); font: 700 15px/1.4 var(--shell-font); }
.game-event-overlay.is-defeated,
.game-event-overlay.is-mastered,
.game-event-overlay.is-milestone { border-color: #f0c96a; background: linear-gradient(115deg, rgba(10, 28, 21, 0.97), rgba(54, 42, 13, 0.95)); }
.game-event-overlay.is-failed { border-color: #ff7b72; background: linear-gradient(115deg, rgba(34, 8, 12, 0.97), rgba(68, 20, 24, 0.95)); }

body.game-active #game-screen.is-encounter-impact {
    animation: encounter-window-impact 460ms cubic-bezier(0.18, 0.86, 0.22, 1);
}

#canvas-container.is-blocked-impact { animation: blocked-impact 180ms ease-out; }
#canvas-container.is-success-flash::after { animation: success-edge-flash 720ms ease-out; }
#canvas-container.is-danger-flash::after { animation: danger-edge-flash 560ms ease-out; }
#quiz-modal.is-defeated-impact .modal-content { animation: defeated-impact 680ms cubic-bezier(0.18, 0.86, 0.22, 1); }
#quiz-modal.is-mastered-impact .modal-content { animation: mastered-impact 680ms cubic-bezier(0.18, 0.86, 0.22, 1); }
#quiz-modal.is-failed-impact .modal-content { animation: failed-impact 520ms ease-out; }

@keyframes encounter-window-impact {
    0% { transform: translate3d(0, 0, 0); filter: brightness(1); }
    16% { transform: translate3d(-10px, 4px, 0) rotate(-0.35deg); filter: brightness(1.22); }
    32% { transform: translate3d(9px, -5px, 0) rotate(0.3deg); }
    49% { transform: translate3d(-6px, 3px, 0); }
    66% { transform: translate3d(4px, -2px, 0); }
    100% { transform: translate3d(0, 0, 0); filter: brightness(1); }
}

@keyframes blocked-impact {
    0%, 100% { transform: translateX(0); }
    35% { transform: translateX(-7px); }
    70% { transform: translateX(5px); }
}

@keyframes success-edge-flash {
    0% { opacity: 0; box-shadow: inset 0 0 90px 18px rgba(95, 235, 178, 0); }
    24% { opacity: 1; box-shadow: inset 0 0 110px 24px rgba(95, 235, 178, 0.7); }
    100% { opacity: 0; box-shadow: inset 0 0 90px 18px rgba(95, 235, 178, 0); }
}

@keyframes danger-edge-flash {
    0% { opacity: 0; box-shadow: inset 0 0 90px 18px rgba(255, 83, 92, 0); }
    24% { opacity: 1; box-shadow: inset 0 0 110px 26px rgba(255, 83, 92, 0.76); }
    100% { opacity: 0; box-shadow: inset 0 0 90px 18px rgba(255, 83, 92, 0); }
}

@keyframes defeated-impact {
    0% { transform: scale(1); }
    28% { transform: scale(1.035); box-shadow: 0 0 0 3px rgba(99, 230, 190, 0.74), 0 28px 90px rgba(0, 0, 0, 0.5); }
    100% { transform: scale(1); }
}

@keyframes mastered-impact {
    0% { transform: scale(1); filter: brightness(1); }
    28% { transform: scale(1.045); filter: brightness(1.3); box-shadow: 0 0 0 4px rgba(255, 209, 102, 0.8), 0 0 80px rgba(255, 209, 102, 0.45); }
    100% { transform: scale(1); filter: brightness(1); }
}

@keyframes failed-impact {
    0%, 100% { transform: translateX(0); }
    24% { transform: translateX(-9px); }
    48% { transform: translateX(8px); }
    72% { transform: translateX(-4px); }
}

@media (prefers-reduced-motion: reduce) {
    body.game-active #game-screen.is-encounter-impact,
    #canvas-container.is-blocked-impact,
    #canvas-container.is-success-flash::after,
    #canvas-container.is-danger-flash::after,
    #quiz-modal.is-defeated-impact .modal-content,
    #quiz-modal.is-mastered-impact .modal-content,
    #quiz-modal.is-failed-impact .modal-content {
        animation: none !important;
    }

    .game-event-overlay { transition: opacity 80ms linear; transform: translate(-50%, -50%); }
}

#game-canvas {
    display: block;
    cursor: pointer;
    image-rendering: pixelated;
}

/* 进度面板 */
/* 测试弹窗 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    pointer-events: auto;
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: 20px;
    max-width: 600px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    pointer-events: auto;
}

.modal-content h2 {
    text-align: center;
    color: #667eea;
    margin-bottom: 20px;
}

#quiz-question {
    font-size: 24px;
    text-align: center;
    margin: 30px 0;
    font-weight: bold;
}

#quiz-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.quiz-option,
.option-btn {
    padding: 15px 20px;
    background: #f8f9fa;
    border: 3px solid #ddd;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 16px;
}

.quiz-option:hover,
.option-btn:hover {
    background: #e9ecef;
    border-color: #667eea;
}

.quiz-option.correct {
    background: #d4edda;
    border-color: #28a745;
}

.quiz-option.incorrect {
    background: #f8d7da;
    border-color: #dc3545;
}

#quiz-input {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

#spelling-input {
    flex: 1;
    min-width: 0;
    display: block;
    position: relative;
    z-index: 2;
    padding: 15px;
    font-size: 18px;
    border: 2px solid #ddd;
    border-radius: 10px;
    pointer-events: auto;
    user-select: text;
}

#submit-spelling {
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
}

#spelling-container {
    position: relative;
    z-index: 2;
    gap: 10px;
    align-items: stretch;
}

#spelling-input:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

#quiz-result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
    font-size: 18px;
}

#quiz-result.correct {
    background: #d4edda;
    color: #155724;
}

#quiz-result.incorrect {
    background: #f8d7da;
    color: #721c24;
}

/* 游戏结束界面 */
#game-over {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

#game-over h1 {
    color: #667eea;
    margin-bottom: 30px;
}

#game-results {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
}

#game-results .result-item {
    font-size: 18px;
    margin: 15px 0;
}

#restart-game {
    padding: 15px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
}

/* 滚动条样式 */
/* 音频控制栏 */
#audio-controls {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    gap: 10px;
    z-index: 100;
}

.icon-button {
    width: 40px;
    height: 40px;
    font-size: 20px;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid #667eea;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    color: white;
}

.icon-button:hover {
    background: rgba(102, 126, 234, 0.8);
    transform: scale(1.1);
}

/* 小地图 */
#minimap-container {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 60;
    width: 150px;
    border: 2px solid color-mix(in srgb, var(--game-ui-accent, #667eea) 72%, #fff 8%);
    border-radius: max(6px, var(--game-ui-radius, 8px));
    background: color-mix(in srgb, var(--game-ui-surface, #071018) 94%, transparent);
    box-shadow: 0 12px 34px rgba(0, 0, 0, .58), inset 0 1px rgba(255, 255, 255, .08);
    color: var(--game-ui-text, #f4f8ff);
    cursor: help;
    outline: none;
    touch-action: manipulation;
    user-select: none;
}

#minimap-container:is(:hover, :focus-visible, [aria-expanded="true"]) {
    border-color: var(--game-ui-accent-2, #5be8da);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--game-ui-accent-2, #5be8da) 20%, transparent), 0 16px 42px rgba(0, 0, 0, .64);
}

.minimap-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-height: 28px;
    padding: 0 8px;
    border-bottom: 1px solid color-mix(in srgb, var(--game-ui-border, #667eea) 62%, transparent);
    font: 800 10px/1 var(--game-ui-font, sans-serif);
    letter-spacing: .04em;
}

#minimap-knowledge-summary { color: var(--game-ui-accent-2, #5be8da); }

.minimap-legend {
    display: flex;
    justify-content: space-between;
    padding: 6px 8px 7px;
    color: var(--game-ui-muted, #aab8c7);
    font: 700 9px/1 var(--game-ui-font, sans-serif);
}

.minimap-legend span { display: inline-flex; align-items: center; gap: 4px; }
.minimap-legend i { width: 7px; height: 7px; display: inline-block; }
.knowledge-dot { background: #5be8da; transform: rotate(45deg); box-shadow: 0 0 6px #5be8da; }
.chest-dot { border-radius: 2px; background: var(--game-ui-accent-2, #ffd76a); box-shadow: 0 0 6px var(--game-ui-accent-2, #ffd76a); }

.minimap-knowledge-detail {
    position: absolute;
    top: 0;
    right: calc(100% + 10px);
    width: min(280px, calc(100vw - 190px));
    max-height: min(360px, 65vh);
    overflow: auto;
    padding: 14px;
    border: 1px solid color-mix(in srgb, var(--game-ui-accent-2, #5be8da) 66%, var(--game-ui-border, #667eea));
    border-radius: max(6px, var(--game-ui-radius, 8px));
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface, #071018) 98%, #000), color-mix(in srgb, var(--game-ui-surface-2, #142334) 94%, #000));
    box-shadow: 0 20px 54px rgba(0, 0, 0, .68);
    color: var(--game-ui-text, #f4f8ff);
    font-family: var(--game-ui-font, sans-serif);
}

.minimap-knowledge-detail[hidden] { display: none; }
.minimap-knowledge-detail strong { color: var(--game-ui-accent-2, #5be8da); }
.minimap-knowledge-detail ul { display: grid; gap: 5px; margin: 10px 0; padding: 0; list-style: none; }
.minimap-knowledge-detail li { padding: 7px 8px; border-left: 2px solid #5be8da; background: rgba(91, 232, 218, .08); font-size: 12px; }
.minimap-knowledge-detail p { margin: 8px 0; color: var(--game-ui-muted, #aab8c7); font-size: 11px; line-height: 1.5; }
.minimap-knowledge-detail small { color: color-mix(in srgb, var(--game-ui-muted, #aab8c7) 78%, transparent); font-size: 9px; }

#minimap-canvas {
    display: block;
    width: 150px;
    height: 150px;
}

/* 帮助面板 */
.help-content {
    max-width: 700px;
}

.help-section {
    margin: 20px 0;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.help-section h3 {
    color: #667eea;
    margin-bottom: 10px;
}

.help-section ul {
    list-style: none;
    padding-left: 0;
}

.help-section li {
    padding: 5px 0;
    padding-left: 20px;
}

.help-section kbd {
    display: inline-block;
    padding: 3px 8px;
    font-size: 12px;
    font-family: 'Courier New', monospace;
    background: #e9ecef;
    border: 1px solid #adb5bd;
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    margin: 0 2px;
}

.close-button {
    width: 100%;
    padding: 15px;
    margin-top: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}

.close-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

#touch-controls {
    display: none;
    position: absolute;
    left: 18px;
    bottom: 18px;
    width: 132px;
    height: 132px;
    z-index: 50;
}

#touch-controls button {
    position: absolute;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 10px;
    background: rgba(18, 28, 42, 0.88);
    color: #fff;
    font-size: 18px;
    touch-action: manipulation;
    user-select: none;
}

#touch-controls button:active {
    background: #4b89c8;
}

.touch-up { top: 0; left: 44px; }
.touch-left { top: 44px; left: 0; }
.touch-down { top: 88px; left: 44px; }
.touch-right { top: 44px; left: 88px; }

@media (max-width: 700px) {
    body { align-items: flex-start; }
    #game-container { padding: 8px; }
    .screen { padding: 16px; border-radius: 12px; }
    #game-info { justify-content: flex-start; padding: 10px; }
    .info-item { font-size: 13px; }
    #canvas-container { height: min(68vh, 560px); min-height: 360px; }
    #minimap-container { top: 10px; right: 10px; transform: scale(0.78); transform-origin: top right; }
    #audio-controls { top: 10px; left: 10px; }
    #save-controls { top: 58px; right: 10px; }
    #touch-controls { display: block; }
    .config-panel label { gap: 10px; }
    .config-panel input, .config-panel select { width: 150px; }
    .config-actions { flex-direction: column; }
}

/* Theme surface: these rules intentionally live last so legacy colors cannot
   bypass the versioned shell tokens. */
body {
    font-family: var(--shell-font);
    background:
        radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--shell-accent) 22%, transparent), transparent 28rem),
        linear-gradient(145deg, var(--shell-bg), color-mix(in srgb, var(--shell-bg) 82%, #000));
    color: var(--shell-text);
    transition: background 240ms ease, color 180ms ease;
}

.screen,
.lobby-screen,
.app-screen,
.modal-content,
.room-section,
.room-card,
.chat-panel {
    background: var(--shell-surface);
    color: var(--shell-text);
    border-color: var(--shell-border);
    border-radius: var(--shell-radius);
}

.brand-block h1,
.app-header h1,
.room-card h3,
.room-list-heading h2,
.chat-heading h2,
.room-section h2,
.modal-content h2,
.help-section h3 {
    color: var(--shell-text);
}

.brand-block p:not(.eyebrow),
.room-card p,
.subtle-text,
.muted-label,
.status-message,
.chat-message-meta time {
    color: var(--shell-muted);
}

.eyebrow,
.text-button,
.info-item span:last-child,
#current-word-activation {
    color: var(--shell-accent);
}

.auth-form input,
.room-settings-form input,
.room-settings-form textarea,
.room-settings-form select,
.inline-settings-form input,
.inline-settings-form select,
.search-box,
.search-box input,
.chat-form,
.chat-form input,
.theme-controls select {
    background: var(--shell-surface-2);
    color: var(--shell-text);
    border-color: var(--shell-border);
    border-radius: max(4px, calc(var(--shell-radius) * .55));
}

.leaderboard-card {
    margin-top: 18px;
    padding: 18px;
    border: 1px solid var(--shell-border);
}

.leaderboard-heading,
.leaderboard-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.leaderboard-heading { margin-bottom: 12px; }
.leaderboard-heading h2 { margin-top: 3px; font-size: 18px; color: var(--shell-text); }
.leaderboard-heading > span { color: var(--shell-accent-2); font-size: 11px; font-weight: 800; }
.leaderboard-list { display: grid; gap: 6px; }
.leaderboard-row { min-height: 40px; padding: 7px 10px; background: var(--shell-surface-2); border: 1px solid var(--shell-border); border-radius: max(4px, calc(var(--shell-radius) * .55)); }
.leaderboard-row.is-self { border-color: var(--shell-accent-2); box-shadow: inset 3px 0 var(--shell-accent-2); }
.leaderboard-row strong { flex: 1; color: var(--shell-text); }
.leaderboard-row > span:last-child { color: var(--shell-accent-2); font-variant-numeric: tabular-nums; }
.rank-badge { display: grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; color: var(--shell-bg); background: var(--shell-accent); font-weight: 900; }

.auth-form button,
.button-primary,
.button-small,
.chat-form button {
    background: var(--shell-accent);
    color: color-mix(in srgb, var(--shell-bg) 92%, #000);
}

.button-quiet,
.small-button,
.icon-button {
    background: var(--shell-surface-2) !important;
    color: var(--shell-text);
    border-color: var(--shell-border);
}

#game-info,
.game-chat-panel {
    background: color-mix(in srgb, var(--shell-surface) 92%, transparent);
    color: var(--shell-text);
    border: 1px solid var(--shell-border);
    backdrop-filter: blur(14px);
}

.info-item,
.current-word-status,
#current-word-label {
    color: var(--shell-text);
}

.theme-controls {
    position: fixed;
    left: 18px;
    bottom: 18px;
    z-index: 1200;
    width: 220px;
    display: grid;
    gap: 9px;
    padding: 14px;
    color: var(--shell-text);
    background: color-mix(in srgb, var(--shell-surface) 92%, transparent);
    border: 1px solid var(--shell-border);
    border-radius: var(--shell-radius);
    box-shadow: 0 18px 50px color-mix(in srgb, var(--shell-bg) 55%, transparent);
    backdrop-filter: blur(16px);
}

.theme-controls-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--shell-accent-2);
    font-size: 12px;
    letter-spacing: .08em;
}

.theme-controls label {
    display: grid;
    gap: 5px;
    color: var(--shell-muted);
    font-size: 11px;
}

.theme-controls select {
    width: 100%;
    min-height: 34px;
    padding: 0 8px;
    border: 1px solid var(--shell-border);
    font: inherit;
}

html[data-shell-theme="pixel-quest"] .screen,
html[data-shell-theme="pixel-quest"] .theme-controls,
html[data-shell-theme="pixel-quest"] .button,
html[data-shell-theme="pixel-quest"] input,
html[data-shell-theme="pixel-quest"] select {
    image-rendering: pixelated;
    box-shadow: 4px 4px 0 color-mix(in srgb, var(--shell-border) 70%, #000);
}

html[data-shell-theme="neon-grid"] body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0, 229, 255, .035) 3px 4px);
    z-index: 1400;
}

@media (max-width: 700px) {
    .theme-controls {
        position: static;
        width: calc(100% - 24px);
        margin: 12px auto 0;
        grid-template-columns: 1fr 1fr;
    }

    .theme-controls-heading {
        grid-column: 1 / -1;
    }
}

/* Lobby and room waiting area */
body {
    background: #e9eef3;
    color: #1f2933;
    align-items: flex-start;
}

#game-container {
    max-width: 1280px;
}

.lobby-screen,
.app-screen {
    max-width: 1180px;
    margin: 0 auto;
    border: 1px solid #d4dde5;
    border-radius: 8px;
    box-shadow: 0 18px 45px rgba(31, 41, 51, 0.14);
}

.lobby-screen {
    max-width: 560px;
    padding: 48px;
}

.brand-block {
    margin-bottom: 32px;
}

.brand-block h1,
.app-header h1 {
    color: #17324d;
    line-height: 1.15;
}

.brand-block p:not(.eyebrow) {
    color: #607080;
    line-height: 1.7;
    margin-top: 12px;
}

.eyebrow {
    color: #187c8c;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.auth-form,
.room-settings-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.auth-form label,
.room-settings-form label,
.inline-settings-form label {
    color: #405261;
    font-size: 13px;
    font-weight: 700;
}

.auth-form input,
.room-settings-form input,
.room-settings-form textarea,
.inline-settings-form input,
.search-box input,
.chat-form input {
    width: 100%;
    border: 1px solid #c8d3dc;
    border-radius: 5px;
    background: #fff;
    color: #1f2933;
    font: inherit;
    outline: none;
}

.auth-form input,
.room-settings-form input,
.room-settings-form textarea,
.inline-settings-form input {
    margin-top: 6px;
    padding: 11px 12px;
}

.auth-form input:focus,
.room-settings-form input:focus,
.room-settings-form textarea:focus,
.inline-settings-form input:focus,
.search-box:focus-within,
.chat-form:focus-within {
    border-color: #187c8c;
    box-shadow: 0 0 0 3px rgba(24, 124, 140, 0.12);
}

.auth-form button,
.button {
    min-height: 40px;
    padding: 0 16px;
    border: 1px solid transparent;
    border-radius: 5px;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    transition: background-color 0.15s, border-color 0.15s, transform 0.15s;
}

.auth-form button,
.button-primary {
    background: #187c8c;
    color: #fff;
}

.auth-form button:hover,
.button-primary:hover {
    background: #126875;
}

.button-secondary {
    background: #355a7a;
    color: #fff;
}

.button-secondary-active {
    background: #1e8b70;
}

.button-quiet {
    background: #f5f7f9;
    border-color: #c8d3dc;
    color: #405261;
}

.button-quiet:hover {
    background: #e8eef2;
}

.button-danger {
    background: #fff4f2;
    border-color: #e2aaa2;
    color: #a13d32;
}

.button-small {
    min-height: 32px;
    padding: 0 11px;
    background: #187c8c;
    color: #fff;
    font-size: 12px;
}

.button:disabled,
.auth-form button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.form-error {
    min-height: 18px;
    color: #b33f35;
    font-size: 13px;
}

.app-screen {
    padding: 28px;
}

.app-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    border-bottom: 1px solid #e0e6eb;
    padding-bottom: 24px;
}

.app-header h1 {
    font-size: clamp(25px, 3vw, 36px);
    margin-top: 5px;
}

.header-actions,
.section-toolbar,
.room-list-heading,
.section-title,
.room-actions,
.form-actions,
.modal-heading,
.room-card-top,
.room-meta,
.chat-heading,
.chat-message-meta,
.member-item,
.member-identity,
.member-actions {
    display: flex;
    align-items: center;
}

.header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.user-chip,
.host-label,
.live-dot,
.muted-label,
.room-lock,
.ready-state {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

.user-chip {
    min-height: 32px;
    padding: 0 10px;
    border-radius: 4px;
    background: #e8f3f4;
    color: #146b78;
    font-size: 13px;
    font-weight: 700;
}

.lobby-layout,
.room-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    padding-top: 24px;
}

.room-browser,
.room-main-column {
    min-width: 0;
}

.section-toolbar {
    gap: 12px;
}

.search-box {
    display: flex;
    flex: 1;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    padding: 0 12px;
    border: 1px solid #c8d3dc;
    border-radius: 5px;
    background: #fff;
    color: #607080;
}

.search-box input {
    border: 0;
    box-shadow: none;
    padding: 0;
}

.room-list-heading {
    justify-content: space-between;
    margin: 28px 0 12px;
}

.room-list-heading h2,
.chat-heading h2,
.room-section h2 {
    color: #17324d;
    font-size: 18px;
}

.text-button {
    border: 0;
    background: transparent;
    color: #187c8c;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

.text-button:hover {
    color: #a05b23;
}

.room-list {
    display: grid;
    gap: 10px;
}

.room-card {
    padding: 16px;
    border: 1px solid #d7e0e7;
    border-radius: 6px;
    background: #fff;
}

.room-card:hover {
    border-color: #84b9c0;
    box-shadow: 0 5px 15px rgba(31, 41, 51, 0.08);
}

.room-card-top {
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.room-card h3 {
    color: #17324d;
    font-size: 17px;
    margin-top: 5px;
}

.room-card p,
.subtle-text {
    color: #657685;
    font-size: 13px;
    line-height: 1.55;
}

.room-card p {
    min-height: 20px;
    margin: 10px 0 14px;
}

.room-id {
    color: #8797a5;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.room-lock {
    color: #657685;
    font-size: 12px;
}

.room-meta {
    flex-wrap: wrap;
    gap: 10px 16px;
    color: #607080;
    font-size: 12px;
}

.room-meta .join-room-button {
    margin-left: auto;
}

.empty-state {
    padding: 36px 12px;
    color: #71808d;
    text-align: center;
}

.chat-panel {
    display: flex;
    min-height: 420px;
    flex-direction: column;
    border-left: 1px solid #e0e6eb;
    padding-left: 24px;
}

.chat-heading {
    justify-content: space-between;
    gap: 8px;
    padding-bottom: 14px;
}

.live-dot {
    gap: 6px;
    color: #1e8b70;
    font-size: 11px;
    font-weight: 700;
}

.live-dot::before {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #2bad83;
    content: '';
}

.chat-messages {
    display: flex;
    min-height: 0;
    flex: 1;
    flex-direction: column;
    gap: 12px;
    max-height: 440px;
    overflow-y: auto;
    padding: 4px 2px 14px;
}

.chat-message {
    padding-bottom: 10px;
    border-bottom: 1px solid #edf1f4;
}

.chat-message-meta {
    justify-content: space-between;
    gap: 8px;
    color: #526675;
    font-size: 12px;
}

.chat-message-meta time {
    color: #98a6b0;
    font-size: 10px;
}

.chat-message p {
    color: #334553;
    font-size: 13px;
    line-height: 1.5;
    margin-top: 4px;
    overflow-wrap: anywhere;
}

.own-message .chat-message-meta strong {
    color: #187c8c;
}

.chat-form {
    display: flex;
    gap: 8px;
    padding-top: 12px;
}

.chat-form input {
    min-width: 0;
    padding: 10px;
}

.chat-form button {
    border: 0;
    border-radius: 5px;
    background: #355a7a;
    color: #fff;
    cursor: pointer;
    padding: 0 13px;
    font-weight: 700;
}

.game-chat-panel {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 80;
    display: flex;
    width: min(320px, calc(100vw - 32px));
    height: 300px;
    padding: 16px;
    flex-direction: column;
    border: 1px solid #d4dde5;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(31, 41, 51, 0.2);
    transition: width 0.18s ease, height 0.18s ease, padding 0.18s ease;
}

.game-chat-panel[hidden] {
    display: none;
}

.game-chat-panel .chat-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding-bottom: 14px;
    flex: none;
}

.game-chat-heading-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.game-chat-content {
    display: flex;
    min-height: 0;
    flex: 1;
    flex-direction: column;
}

.game-chat-panel .chat-messages {
    height: 0;
    max-height: none;
}

.room-header {
    align-items: center;
}

.room-header .text-button {
    margin-bottom: 12px;
}

.room-section {
    border-bottom: 1px solid #e0e6eb;
    padding-bottom: 22px;
    margin-bottom: 22px;
}

.section-title {
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.muted-label {
    color: #8797a5;
    font-size: 12px;
}

.host-label {
    margin-left: 8px;
    color: #a05b23;
    font-size: 11px;
    font-weight: 800;
}

.member-list {
    display: grid;
    gap: 8px;
}

.member-item {
    justify-content: space-between;
    gap: 12px;
    min-height: 48px;
    padding: 8px 10px;
    border: 1px solid #e0e6eb;
    border-radius: 5px;
    background: #fff;
}

.member-identity,
.member-actions {
    gap: 8px;
}

.member-identity {
    min-width: 0;
    color: #334553;
    font-size: 13px;
    font-weight: 700;
}

.member-avatar {
    display: grid;
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    place-items: center;
    border-radius: 4px;
    background: #d8ebed;
    color: #146b78;
    font-size: 12px;
}

.ready-state {
    color: #9aa6af;
    font-size: 11px;
}

.ready-state.is-ready {
    color: #1e8b70;
    font-weight: 800;
}

.kick-button {
    color: #b33f35;
    font-size: 11px;
}

.inline-settings-form {
    display: grid;
    grid-template-columns: repeat(4, minmax(92px, 1fr));
    align-items: end;
    gap: 12px;
}

.inline-settings-form small,
.room-settings-form small {
    display: block;
    color: #8797a5;
    font-size: 10px;
    font-weight: 400;
    margin-top: 4px;
}

.room-settings-form small input[type="checkbox"] {
    width: auto;
    margin: 0 4px 0 0;
    padding: 0;
    vertical-align: middle;
}

.inline-settings-form button {
    grid-column: 1 / -1;
    justify-self: start;
}

.room-actions {
    flex-wrap: wrap;
    gap: 10px;
}

.status-message {
    color: #687987;
    font-size: 13px;
    margin-top: 12px;
}

.room-form-modal {
    max-width: 620px;
    border-radius: 8px;
    padding: 28px;
}

.compact-modal {
    max-width: 460px;
}

.modal-heading {
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 22px;
}

.modal-heading h2 {
    margin: 5px 0 0;
    text-align: left;
}

.icon-close {
    border: 0;
    background: transparent;
    color: #657685;
    cursor: pointer;
    font-size: 25px;
    line-height: 1;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.form-actions {
    justify-content: flex-end;
    gap: 8px;
    margin-top: 6px;
}

@media (max-width: 800px) {
    body { align-items: flex-start; }
    .lobby-screen,
    .app-screen { margin: 0; }
    .app-header,
    .room-header { align-items: flex-start; flex-direction: column; }
    .header-actions { justify-content: flex-start; }
    .lobby-layout,
    .room-layout { grid-template-columns: 1fr; }
    .chat-panel { min-height: 300px; border-left: 0; border-top: 1px solid #e0e6eb; padding: 20px 0 0; }
}

@media (max-width: 560px) {
    #game-container { padding: 8px; }
    .lobby-screen,
    .app-screen { padding: 18px; }
    .lobby-screen { padding: 28px 20px; }
    .section-toolbar { align-items: stretch; flex-direction: column; }
    .room-meta .join-room-button { margin-left: 0; width: 100%; }
    .inline-settings-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .form-grid { grid-template-columns: 1fr; }
    .member-item { align-items: flex-start; flex-direction: column; }
    .member-actions { width: 100%; justify-content: space-between; }
}

/* Keep the active game inside one viewport; secondary information floats over the maze. */
body.game-active {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

body.game-active #game-container {
    height: 100vh;
    height: 100dvh;
    padding: 8px;
}

body.game-active #game-screen {
    position: relative;
    height: calc(100vh - 16px);
    height: calc(100dvh - 16px);
    min-height: 0;
    overflow: hidden;
    padding: 70px 12px 12px;
    border-radius: 8px;
}

body.game-active #game-info {
    min-height: 46px;
    flex: none;
    padding: 10px 14px;
    border-radius: 6px;
}

body.game-active #canvas-container {
    height: auto;
    min-height: 0;
    flex: 1;
    border-radius: 6px;
}

body.game-active #audio-controls,
body.game-active #save-controls {
    top: 14px;
}

body.game-active #audio-controls {
    left: 14px;
}

/* Voice messaging and SFU room controls */
.chat-form {
    display: grid;
    gap: 8px;
}

.chat-compose-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto 44px auto;
    align-items: stretch;
    gap: 7px;
}

.chat-compose-row > input {
    min-width: 0;
}

.chat-form .voice-record-button {
    width: 44px;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    border-radius: 50%;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 52%, transparent);
    color: #c93642;
    background: color-mix(in srgb, var(--shell-surface-2) 88%, #c93642 12%);
    box-shadow: inset 0 0 0 4px color-mix(in srgb, var(--shell-surface) 82%, transparent);
    font-size: 14px;
    line-height: 1;
}

.speech-synthesize-button {
    min-width: 48px;
    padding: 0 9px;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 42%, transparent);
    border-radius: 10px;
    color: var(--shell-accent);
    background: color-mix(in srgb, var(--shell-surface-2) 88%, var(--shell-accent) 12%);
    font: inherit;
    font-size: 12px;
    font-weight: 800;
}

.speech-synthesize-button:disabled,
.live-voice-actions button:disabled {
    cursor: not-allowed;
    opacity: 0.48;
}

.speech-compose-status {
    color: var(--shell-muted);
    font-size: 12px;
}

.chat-form.is-recording .voice-record-button {
    color: #fff;
    background: #c93642;
    box-shadow: 0 0 0 5px rgb(201 54 66 / 16%);
}

.voice-draft {
    display: grid;
    grid-template-columns: auto auto minmax(80px, 1fr) auto auto;
    align-items: center;
    gap: 8px;
    padding: 9px 10px;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 30%, transparent);
    border-radius: 12px;
    background: color-mix(in srgb, var(--shell-surface-2) 92%, transparent);
}

.voice-draft[hidden] {
    display: none;
}

.voice-draft time {
    font-variant-numeric: tabular-nums;
    font-weight: 800;
    color: var(--shell-text);
}

.voice-draft [data-voice-status] {
    overflow: hidden;
    color: var(--shell-muted);
    font-size: 12px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.voice-draft [data-voice-status].is-error {
    color: #c93642;
}

.voice-draft button,
.live-voice-actions button {
    min-height: 36px;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 38%, transparent);
    border-radius: 9px;
    padding: 0 10px;
    color: var(--shell-text);
    background: color-mix(in srgb, var(--shell-surface) 90%, var(--shell-accent) 10%);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.recording-pulse {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #c93642;
    box-shadow: 0 0 0 0 rgb(201 54 66 / 38%);
    animation: voice-recording-pulse 1.35s ease-out infinite;
}

@keyframes voice-recording-pulse {
    70%, 100% { box-shadow: 0 0 0 9px rgb(201 54 66 / 0%); }
}

.voice-message-player {
    display: grid;
    gap: 5px;
    margin-top: 5px;
}

.voice-message-player,
.voice-message-player audio {
    width: min(100%, 270px);
    height: 36px;
}

.voice-message-player small {
    color: var(--shell-muted);
    font-size: 11px;
}

.voice-transcript {
    margin: 7px 0 0;
    padding: 7px 9px;
    border-radius: 9px;
    color: var(--shell-muted);
    background: color-mix(in srgb, var(--shell-surface-2) 90%, transparent);
    font-size: 12px;
    line-height: 1.55;
}

.voice-transcript.is-failed {
    color: #b34854;
}

.room-live-voice-notice {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 0 0 14px;
    padding: 10px 12px;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 24%, transparent);
    border-radius: 12px;
    color: var(--shell-text);
    background: color-mix(in srgb, var(--shell-surface-2) 92%, transparent);
}

.room-live-voice-notice span,
.admin-speech-test span {
    color: var(--shell-muted);
    font-size: 12px;
}

.admin-speech-test {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto;
    gap: 8px;
    align-items: center;
}

.admin-speech-test span {
    grid-column: 1 / -1;
}

.live-voice-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    margin: 0 0 10px;
    padding: 10px 11px;
    border: 1px solid color-mix(in srgb, var(--game-accent, var(--shell-accent)) 40%, transparent);
    border-radius: 13px;
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--shell-surface-2) 94%, transparent), color-mix(in srgb, var(--game-accent, var(--shell-accent)) 10%, var(--shell-surface)));
}

.live-voice-controls[hidden] {
    display: none;
}

.live-voice-controls > div:first-child {
    display: grid;
    gap: 2px;
    min-width: 0;
}

.live-voice-controls [data-live-status],
.live-voice-controls [data-live-speakers] {
    color: var(--shell-muted);
    font-size: 11px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.live-voice-controls[data-state="connected"] strong {
    color: var(--game-accent, var(--shell-accent));
}

.live-voice-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 6px;
}

@media (max-width: 620px) {
    .chat-compose-row {
        grid-template-columns: minmax(0, 1fr) 48px 44px;
    }

    .chat-compose-row > button[type="submit"] {
        grid-column: 1 / -1;
    }

    .admin-speech-test {
        grid-template-columns: 1fr;
    }

    .voice-draft {
        grid-template-columns: auto auto minmax(0, 1fr);
    }

    .voice-draft button {
        min-height: 44px;
    }

    .voice-draft [data-voice-cancel] {
        grid-column: 1 / 3;
    }

    .voice-draft [data-voice-send] {
        grid-column: 3;
    }

    .live-voice-controls {
        grid-template-columns: 1fr;
    }

    .live-voice-actions {
        justify-content: stretch;
    }

    .live-voice-actions button {
        min-height: 44px;
        flex: 1 1 auto;
    }
}

/* Game UI is a separate replaceable surface: remap shared voice controls to
 * game tokens instead of leaking the currently selected lobby palette. */
.game-chat-panel {
    --shell-bg: var(--game-ui-surface);
    --shell-surface: var(--game-ui-surface);
    --shell-surface-2: var(--game-ui-surface-2);
    --shell-text: var(--game-ui-text);
    --shell-muted: var(--game-ui-muted);
    --shell-accent: var(--game-ui-accent);
    --shell-accent-2: var(--game-ui-accent-2);
    --shell-border: var(--game-ui-border);
}

.game-chat-panel [data-voice-component] {
    --voice-accent: var(--game-ui-accent);
    --voice-line: color-mix(in srgb, var(--game-ui-accent) 36%, transparent);
    --voice-panel: color-mix(in srgb, var(--game-ui-surface-2) 94%, transparent);
    --voice-glow: color-mix(in srgb, var(--game-ui-accent) 17%, transparent);
}

.game-chat-panel [data-voice-component="composer"][data-social-ready="true"] .chat-compose-row {
    border-color: color-mix(in srgb, var(--game-ui-border) 84%, var(--game-ui-accent) 16%);
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--game-ui-surface-2) 96%, transparent), color-mix(in srgb, var(--game-ui-surface) 84%, var(--game-ui-accent) 16%));
    box-shadow: inset 3px 0 color-mix(in srgb, var(--game-ui-accent) 66%, transparent), 0 10px 26px rgb(0 0 0 / 18%);
}

.game-chat-panel [data-voice-component="composer"] .chat-compose-row > button[type="submit"] {
    border-color: color-mix(in srgb, var(--game-ui-accent) 76%, white 8%);
    background: var(--game-ui-accent);
    color: color-mix(in srgb, var(--game-ui-surface) 90%, #000);
}

/* HUD facts are live data. The generated wide frame remains available to the
 * theme pack, but no longer stretches beneath variable-width counters. */
body.game-active #game-info {
    position: relative;
    isolation: isolate;
    overflow: visible;
    background-image:
        linear-gradient(90deg, color-mix(in srgb, var(--game-ui-accent) 7%, transparent), transparent 28%),
        linear-gradient(color-mix(in srgb, var(--game-ui-surface) 82%, transparent), color-mix(in srgb, var(--game-ui-surface) 92%, transparent));
    background-size: auto;
    box-shadow: inset 3px 0 color-mix(in srgb, var(--game-ui-accent) 58%, transparent), 0 10px 30px rgba(0, 0, 0, .35);
}

body.game-active #game-info::after {
    position: absolute;
    z-index: -1;
    right: 10px;
    width: 52px;
    height: 52px;
    background: var(--game-effect-aura-image, none) center / contain no-repeat;
    content: '';
    opacity: .1;
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    .recording-pulse { animation: none; }
}

body.game-active #save-controls {
    right: 14px;
}

@media (max-width: 700px) {
    body.game-active #game-screen {
        padding: 108px 8px 8px;
    }

    body.game-active #audio-controls {
        top: 8px;
        left: 8px;
    }

    body.game-active #save-controls {
        top: 56px;
        right: 8px;
        left: 8px;
        justify-content: flex-end;
    }

    body.game-active #game-info {
        min-height: 58px;
        justify-content: center;
        padding: 7px 9px;
        gap: 6px 12px;
    }

    body.game-active #canvas-container {
        height: auto;
        min-height: 0;
    }

}

/* Final theme precedence boundary. */
body {
    font-family: var(--shell-font);
    background: radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--shell-accent) 22%, transparent), transparent 28rem), linear-gradient(145deg, var(--shell-bg), color-mix(in srgb, var(--shell-bg) 82%, #000));
    color: var(--shell-text);
}

.screen, .lobby-screen, .app-screen, .modal-content, .room-section, .room-card, .chat-panel {
    background-color: var(--shell-surface);
    background-image: linear-gradient(color-mix(in srgb, var(--shell-surface) 90%, transparent), color-mix(in srgb, var(--shell-surface) 90%, transparent)), var(--shell-panel-image);
    background-size: auto, 420px 420px;
    color: var(--shell-text);
    border-color: var(--shell-border);
    border-radius: var(--shell-radius);
}

.brand-block h1, .app-header h1, .room-card h3, .room-list-heading h2, .chat-heading h2, .room-section h2, .modal-content h2, .help-section h3, .info-item, .current-word-status, #current-word-label {
    color: var(--shell-text);
}

.brand-block p:not(.eyebrow), .room-card p, .subtle-text, .muted-label, .status-message, .chat-message-meta time { color: var(--shell-muted); }
.eyebrow, .text-button, .info-item span:last-child, #current-word-activation { color: var(--shell-accent); }

.auth-form input, .room-settings-form input, .room-settings-form textarea, .room-settings-form select, .inline-settings-form input, .inline-settings-form select, .search-box, .search-box input, .chat-form, .chat-form input, .theme-controls select {
    background: var(--shell-surface-2);
    color: var(--shell-text);
    border-color: var(--shell-border);
}

.auth-form button, .button-primary, .button-small, .chat-form button {
    background: var(--shell-accent);
    color: color-mix(in srgb, var(--shell-bg) 92%, #000);
}

#game-info, .game-chat-panel {
    background: color-mix(in srgb, var(--shell-surface) 92%, transparent);
    color: var(--shell-text);
    border-color: var(--shell-border);
}

/* Authenticated theme controls share the same bottom-left tool boundary. */
#lobby-screen .theme-controls {
    position: fixed;
    left: max(18px, env(safe-area-inset-left));
    bottom: max(18px, env(safe-area-inset-bottom));
    z-index: 1200;
    width: 260px;
    margin: 0;
    grid-template-columns: 1fr;
    align-items: stretch;
    box-shadow: 0 18px 50px color-mix(in srgb, var(--shell-bg) 55%, transparent);
}

#lobby-screen .theme-controls-heading {
    display: grid;
    align-self: center;
    gap: 5px;
}

#lobby-screen .theme-controls-heading > div {
    display: flex;
    align-items: baseline;
    gap: 9px;
}

.cosmetic-controls {
    display: grid;
    gap: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--shell-border);
}

.cosmetic-controls label {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 8px;
    align-items: center;
    font-size: 12px;
}

#lobby-screen .theme-controls-heading > span {
    color: var(--shell-muted);
    font-size: 11px;
    line-height: 1.5;
    letter-spacing: 0;
}

.theme-control-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.theme-control-meta small,
.theme-control-meta strong {
    color: var(--shell-accent-2);
    font-size: 10px;
}

@media (max-width: 800px) {
    #lobby-screen .theme-controls {
        grid-template-columns: 1fr 1fr;
        width: min(520px, calc(100vw - 36px));
    }

    #lobby-screen .theme-controls-heading {
        grid-column: 1 / -1;
    }
}

@media (max-width: 560px) {
    #lobby-screen .theme-controls {
        left: max(10px, env(safe-area-inset-left));
        bottom: max(10px, env(safe-area-inset-bottom));
        width: calc(100vw - 20px - env(safe-area-inset-left) - env(safe-area-inset-right));
        padding: 10px;
    }

    #lobby-screen .theme-controls-heading > span {
        display: none;
    }
}

.auth-card {
    display: grid;
    gap: 18px;
    padding: 22px;
    background: var(--shell-surface-2);
    border: 1px solid var(--shell-border);
    border-radius: var(--shell-radius);
}

.auth-form[hidden] {
    display: none;
}

.public-theme-picker {
    position: fixed;
    left: max(18px, env(safe-area-inset-left));
    bottom: max(18px, env(safe-area-inset-bottom));
    z-index: 1200;
    display: grid;
    gap: 12px;
    width: min(372px, calc(100vw - 36px));
    margin: 0;
    padding: 12px;
    background: color-mix(in srgb, var(--shell-surface) 92%, transparent);
    border: 1px solid var(--shell-border);
    border-radius: var(--shell-radius);
    box-shadow: 0 18px 50px color-mix(in srgb, var(--shell-bg) 55%, transparent);
    backdrop-filter: blur(16px);
}

.public-theme-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
}

.public-theme-heading h2 {
    margin-top: 3px;
    color: var(--shell-text);
    font-size: 14px;
}

.public-theme-heading > span {
    color: var(--shell-muted);
    font-size: 10px;
}

.public-theme-options {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 7px;
}

.public-theme-option {
    position: relative;
    display: grid;
    min-width: 0;
    gap: 7px;
    padding: 7px;
    overflow: hidden;
    border: 1px solid var(--shell-border);
    border-radius: max(6px, calc(var(--shell-radius) * .65));
    background: color-mix(in srgb, var(--shell-surface) 84%, transparent);
    color: var(--shell-text);
    cursor: pointer;
    text-align: left;
    transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}

.public-theme-option:hover {
    transform: translateY(-2px);
    border-color: var(--shell-accent);
}

.public-theme-option.is-selected {
    border-color: var(--shell-accent-2);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--shell-accent-2) 20%, transparent);
}

.public-theme-option > span:nth-child(2) {
    min-width: 0;
}

.public-theme-option strong {
    display: block;
    overflow: hidden;
    font-size: 11px;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.public-theme-option small {
    display: none;
}

.public-theme-option > b {
    position: absolute;
    top: 4px;
    right: 5px;
    display: none;
    color: var(--preview-gold);
    font-size: 10px;
}

.public-theme-option.is-selected > b {
    display: block;
}

.theme-preview {
    position: relative;
    display: block;
    height: 36px;
    overflow: hidden;
    border-radius: max(4px, calc(var(--shell-radius) * .4));
    background: linear-gradient(145deg, var(--preview-bg), var(--preview-surface));
}

.theme-preview i {
    position: absolute;
    display: block;
    border-radius: 50%;
}

.theme-preview i:nth-child(1) {
    right: 9px;
    bottom: 7px;
    width: 18px;
    height: 18px;
    background: var(--preview-accent);
    box-shadow: 0 0 14px var(--preview-accent);
}

.theme-preview i:nth-child(2) {
    left: 8px;
    top: 9px;
    width: 7px;
    height: 7px;
    background: var(--preview-gold);
}

.theme-preview i:nth-child(3) {
    left: 19px;
    top: 18px;
    width: 21px;
    height: 2px;
    border-radius: 0;
    background: color-mix(in srgb, var(--preview-accent) 70%, white);
}

@media (max-width: 560px) {
    .public-theme-picker {
        left: max(10px, env(safe-area-inset-left));
        bottom: max(10px, env(safe-area-inset-bottom));
        width: calc(100vw - 20px - env(safe-area-inset-left) - env(safe-area-inset-right));
        gap: 8px;
        padding: 9px;
    }

    .public-theme-options {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .public-theme-heading {
        align-items: center;
        flex-direction: row;
        gap: 8px;
    }

    .public-theme-heading .eyebrow,
    .public-theme-heading > span {
        display: none;
    }

    .public-theme-option {
        padding: 5px;
    }

    .public-theme-option strong {
        font-size: 9px;
    }

    .theme-preview {
        height: 30px;
    }
}

.auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding: 4px;
    background: color-mix(in srgb, var(--shell-bg) 58%, transparent);
    border-radius: max(6px, calc(var(--shell-radius) * .65));
}

.auth-tab {
    min-height: 38px;
    border: 0;
    border-radius: max(4px, calc(var(--shell-radius) * .5));
    background: transparent;
    color: var(--shell-muted);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
}

.auth-tab.is-active {
    background: var(--shell-surface);
    color: var(--shell-accent);
    box-shadow: 0 5px 18px color-mix(in srgb, var(--shell-bg) 35%, transparent);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--shell-muted);
    font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    border-top: 1px solid var(--shell-border);
}

.linuxdo-button {
    display: flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--shell-accent-2);
    border-radius: max(5px, calc(var(--shell-radius) * .55));
    color: var(--shell-accent-2);
    font-weight: 800;
    text-decoration: none;
}

.linuxdo-button[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: .45;
    pointer-events: none;
}

.auth-hint {
    margin: 0;
    color: var(--shell-muted);
    font-size: 12px;
    line-height: 1.6;
}

.auth-card .auth-form label {
    color: var(--shell-muted);
}

.auth-card .auth-form input::placeholder {
    color: color-mix(in srgb, var(--shell-muted) 72%, transparent);
}

.admin-center-modal {
    width: min(1120px, calc(100vw - 32px));
    max-width: 1120px;
    max-height: min(900px, calc(100vh - 32px));
    overflow: auto;
}

.admin-section > .section-title {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5px;
    align-items: start;
}

.admin-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.admin-section {
    padding: 18px;
    border: 1px solid var(--shell-border);
    border-radius: var(--shell-radius);
    background: var(--shell-surface-2);
}

.admin-section h3 {
    margin: 2px 0 0;
    color: var(--shell-text);
}

.admin-users-section {
    grid-column: 1 / -1;
}

.admin-config-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 14px;
}

.admin-config-grid label {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3px 9px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--shell-border);
    border-radius: max(5px, calc(var(--shell-radius) * .55));
    color: var(--shell-text);
}

.admin-config-grid .admin-config-field {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 7px;
}

.admin-config-field input {
    width: 100%;
}

.admin-config-grid label small {
    grid-column: 2;
    color: var(--shell-muted);
    line-height: 1.45;
}

.admin-config-grid button {
    grid-column: 1 / -1;
}

.admin-inline-form {
    display: flex;
    align-items: end;
    gap: 10px;
    margin: 14px 0;
}

.admin-inline-form label {
    flex: 1;
    color: var(--shell-muted);
    font-size: 12px;
    font-weight: 700;
}

.admin-inline-form input,
.admin-user-row input {
    width: 100%;
    min-height: 38px;
    margin-top: 5px;
    padding: 0 10px;
    border: 1px solid var(--shell-border);
    border-radius: max(4px, calc(var(--shell-radius) * .45));
    background: var(--shell-surface);
    color: var(--shell-text);
    font: inherit;
}

.admin-created-codes {
    margin-bottom: 12px;
    padding: 12px;
    border: 1px solid var(--shell-accent-2);
    border-radius: max(5px, calc(var(--shell-radius) * .55));
    background: color-mix(in srgb, var(--shell-accent-2) 10%, var(--shell-surface));
}

.admin-created-codes strong,
.admin-created-codes code {
    display: block;
}

.admin-created-codes code {
    margin-top: 7px;
    color: var(--shell-accent-2);
    overflow-wrap: anywhere;
    user-select: all;
}

.admin-code-list,
.admin-user-list {
    display: grid;
    gap: 7px;
}

.admin-code-row,
.admin-user-row {
    display: grid;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--shell-border);
    border-radius: max(5px, calc(var(--shell-radius) * .5));
    background: var(--shell-surface);
}

.admin-code-row {
    grid-template-columns: 120px 1fr auto;
    color: var(--shell-muted);
    font-size: 12px;
}

.admin-code-row code,
.admin-user-name strong {
    color: var(--shell-text);
}

.admin-user-row {
    grid-template-columns: minmax(170px, 1.5fr) minmax(130px, .8fr) 110px auto auto;
}

.admin-user-name {
    display: grid;
    gap: 3px;
}

.admin-user-name small,
.admin-user-vocabulary small {
    color: var(--shell-muted);
}

.admin-user-vocabulary {
    display: grid;
    grid-template-columns: 1fr;
    color: var(--shell-muted);
    font-size: 11px;
}

.admin-status-badge {
    justify-self: start;
    padding: 4px 8px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--shell-accent) 16%, var(--shell-surface));
    color: var(--shell-accent);
    font-size: 11px;
    font-weight: 800;
}

.admin-status-badge.is-disabled {
    background: rgba(214, 69, 69, .14);
    color: #ff8e8e;
}

.admin-center-modal .admin-inline-form .button-quiet {
    color: var(--shell-text);
}

.admin-toggle-user[data-disabled="false"] {
    border-color: rgba(255, 142, 142, .7);
    color: #ffb0b0;
}

.admin-toggle-user[data-disabled="true"] {
    border-color: color-mix(in srgb, var(--shell-accent) 70%, var(--shell-border));
    color: var(--shell-accent);
}

@media (max-width: 760px) {
    .admin-layout,
    .admin-config-grid {
        grid-template-columns: 1fr;
    }

    .admin-users-section,
    .admin-config-grid button {
        grid-column: auto;
    }

    .admin-user-row {
        grid-template-columns: 1fr 1fr;
    }

    .admin-user-name {
        grid-column: 1 / -1;
    }
}

/* Replaceable in-game quiz surface. It intentionally ignores shell tokens. */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

#quiz-modal {
    overflow-y: auto;
    padding: 18px;
    background:
        radial-gradient(circle at 50% 46%, color-mix(in srgb, var(--game-ui-accent) 13%, transparent), transparent 34rem),
        color-mix(in srgb, var(--game-ui-surface) 70%, #000 30%);
    backdrop-filter: blur(5px) brightness(.62);
}

#quiz-modal .quiz-panel {
    position: relative;
    isolation: isolate;
    width: min(760px, calc(100vw - 36px));
    max-width: none;
    min-height: 500px;
    margin: auto;
    padding: clamp(72px, 7vw, 92px) clamp(76px, 8vw, 112px) clamp(58px, 6vw, 76px);
    overflow: hidden;
    border: 0;
    border-radius: var(--game-ui-radius);
    background-color: var(--game-ui-surface);
    background-image:
        linear-gradient(color-mix(in srgb, var(--game-ui-surface) 22%, transparent), color-mix(in srgb, var(--game-ui-surface) 22%, transparent)),
        var(--game-quiz-panel-image);
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100% 100%, 112% 112%;
    color: var(--game-ui-text);
    box-shadow: 0 34px 100px rgba(0, 0, 0, .66), 0 0 60px color-mix(in srgb, var(--game-ui-accent) 15%, transparent);
    font-family: var(--game-ui-font);
}

html[data-game-theme="knowledge-garden"] #quiz-modal .quiz-panel {
    clip-path: polygon(4% 0, 96% 0, 100% 6%, 100% 94%, 96% 100%, 4% 100%, 0 94%, 0 6%);
    filter: drop-shadow(0 30px 42px rgba(0, 0, 0, .58));
}

#quiz-modal .quiz-panel::after {
    content: "";
    position: absolute;
    z-index: -1;
    inset: clamp(48px, 6.2vw, 72px) clamp(48px, 6vw, 82px);
    border: 1px solid color-mix(in srgb, var(--game-ui-accent) 38%, transparent);
    border-radius: max(4px, calc(var(--game-ui-radius) * .65));
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface) 92%, transparent), color-mix(in srgb, var(--game-ui-surface-2) 80%, transparent));
    box-shadow: inset 0 0 45px rgba(0, 0, 0, .42);
}

.quiz-panel-content {
    display: grid;
    position: relative;
    z-index: 1;
    gap: 15px;
}

.quiz-kicker {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--game-ui-accent-2);
    font: 800 10px/1.2 Consolas, monospace;
    letter-spacing: .22em;
    text-align: center;
}

.quiz-kicker::before,
.quiz-kicker::after,
.quiz-footer i {
    content: "";
    width: 42px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--game-ui-accent-2));
}

.quiz-kicker::after { transform: rotate(180deg); }

#quiz-modal .quiz-panel h2 {
    margin: 0;
    color: var(--game-ui-text);
    font: 800 clamp(16px, 2.5vw, 22px)/1.3 var(--game-ui-font);
    letter-spacing: .04em;
    text-align: center;
    text-shadow: 0 2px 12px rgba(0, 0, 0, .72);
}

.quiz-question-card {
    display: grid;
    justify-items: center;
    gap: 4px;
    margin: 1px 0 2px;
    padding: 10px 18px 12px;
    border-block: 1px solid color-mix(in srgb, var(--game-ui-accent-2) 34%, transparent);
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--game-ui-accent) 9%, transparent), transparent);
}

.quiz-question-card small {
    color: var(--game-ui-muted);
    font: 700 10px/1.2 var(--game-ui-font);
    letter-spacing: .18em;
}

#quiz-question {
    margin: 0;
    color: var(--game-ui-text);
    font: 900 clamp(25px, 4.5vw, 38px)/1.15 var(--game-ui-font);
    overflow-wrap: anywhere;
    text-shadow: 0 0 24px color-mix(in srgb, var(--game-ui-accent) 28%, transparent);
}

#quiz-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    min-height: 0;
    scrollbar-color: var(--game-ui-accent) color-mix(in srgb, var(--game-ui-surface-2) 78%, transparent);
    scrollbar-width: thin;
}

#quiz-options::-webkit-scrollbar { width: 8px; }
#quiz-options::-webkit-scrollbar-track { background: color-mix(in srgb, var(--game-ui-surface-2) 78%, transparent); border-radius: 999px; }
#quiz-options::-webkit-scrollbar-thumb { background: var(--game-ui-accent); border-radius: 999px; }

#quiz-modal[data-option-density="compact"] .quiz-panel { width: min(820px, calc(100vw - 36px)); }
#quiz-modal[data-option-density="compact"] .option-btn { min-height: 52px; padding-block: 8px; }

#quiz-modal[data-option-density="crowded"] .quiz-panel { width: min(880px, calc(100vw - 36px)); }
#quiz-modal[data-option-density="crowded"] #quiz-options {
    max-height: min(40dvh, 380px);
    padding: 3px 9px 3px 3px;
    overflow-y: auto;
    overscroll-behavior: contain;
    box-shadow: inset 0 14px 18px -18px var(--game-ui-accent), inset 0 -14px 18px -18px var(--game-ui-accent);
}

#quiz-modal[data-option-density="crowded"] .option-btn { min-height: 48px; padding: 7px 11px; font-size: 13px; }

#quiz-modal .option-btn {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    align-items: center;
    min-height: 62px;
    padding: 10px 14px;
    border: 1px solid color-mix(in srgb, var(--game-ui-border) 92%, #fff 8%);
    border-radius: max(3px, calc(var(--game-ui-radius) * .58));
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface-2) 92%, #fff 8%), var(--game-ui-surface-2));
    color: var(--game-ui-text);
    box-shadow: inset 0 1px rgba(255, 255, 255, .06), 0 5px 16px rgba(0, 0, 0, .22);
    font: 700 14px/1.35 var(--game-ui-font);
    text-align: left;
    transition: transform 140ms ease, border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

#quiz-modal .option-btn:hover:not(:disabled),
#quiz-modal .option-btn:focus-visible {
    transform: translateY(-2px);
    border-color: var(--game-ui-accent);
    outline: none;
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-accent) 17%, var(--game-ui-surface-2)), var(--game-ui-surface-2));
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--game-ui-accent) 18%, transparent), 0 9px 22px rgba(0, 0, 0, .3);
}

.option-marker {
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border: 1px solid color-mix(in srgb, var(--game-ui-accent) 55%, var(--game-ui-border));
    border-radius: max(2px, calc(var(--game-ui-radius) * .45));
    color: var(--game-ui-accent);
    background: color-mix(in srgb, var(--game-ui-accent) 8%, transparent);
    font: 900 12px/1 Consolas, monospace;
}

.option-label { overflow-wrap: anywhere; }

#quiz-modal .option-btn.is-correct {
    border-color: var(--game-ui-success);
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-success) 28%, var(--game-ui-surface-2)), var(--game-ui-surface-2));
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--game-ui-success) 20%, transparent), 0 0 26px color-mix(in srgb, var(--game-ui-success) 18%, transparent);
}

#quiz-modal .option-btn.is-wrong {
    border-color: var(--game-ui-danger);
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-danger) 25%, var(--game-ui-surface-2)), var(--game-ui-surface-2));
}

#quiz-modal .option-btn.is-correct .option-marker { border-color: var(--game-ui-success); color: var(--game-ui-success); }
#quiz-modal .option-btn.is-wrong .option-marker { border-color: var(--game-ui-danger); color: var(--game-ui-danger); }
#quiz-modal .option-btn:disabled { cursor: default; opacity: .72; }
#quiz-modal .option-btn.is-correct:disabled,
#quiz-modal .option-btn.is-wrong:disabled { opacity: 1; }

#spelling-container {
    display: flex;
    gap: 10px;
}

#quiz-modal #spelling-input {
    min-width: 0;
    border: 1px solid var(--game-ui-border);
    border-radius: max(3px, calc(var(--game-ui-radius) * .58));
    background: var(--game-ui-surface-2);
    color: var(--game-ui-text);
    font: 800 18px/1.2 var(--game-ui-font);
    caret-color: var(--game-ui-accent);
}

#quiz-modal #spelling-input:focus {
    border-color: var(--game-ui-accent);
    outline: 2px solid color-mix(in srgb, var(--game-ui-accent) 22%, transparent);
}

#quiz-modal #spelling-input::placeholder { color: var(--game-ui-muted); }

#quiz-modal #submit-spelling {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 12px 17px;
    border: 1px solid color-mix(in srgb, var(--game-ui-accent) 60%, #fff 10%);
    border-radius: max(3px, calc(var(--game-ui-radius) * .58));
    background: linear-gradient(145deg, var(--game-ui-accent), color-mix(in srgb, var(--game-ui-accent) 68%, #000));
    color: color-mix(in srgb, var(--game-ui-surface) 90%, #000);
    font: 900 14px/1 var(--game-ui-font);
}

#submit-spelling kbd {
    padding: 3px 5px;
    border: 1px solid currentColor;
    border-radius: 3px;
    background: rgba(255, 255, 255, .16);
    color: inherit;
    font: 700 10px/1 Consolas, monospace;
}

#quiz-result {
    margin: 0;
    padding: 11px 14px;
    border: 1px solid currentColor;
    border-radius: max(3px, calc(var(--game-ui-radius) * .55));
    background: color-mix(in srgb, currentColor 10%, var(--game-ui-surface));
    font: 800 14px/1.4 var(--game-ui-font);
}

#quiz-result.correct { color: var(--game-ui-success); background: color-mix(in srgb, var(--game-ui-success) 10%, var(--game-ui-surface)); }
#quiz-result.incorrect { color: var(--game-ui-danger); background: color-mix(in srgb, var(--game-ui-danger) 10%, var(--game-ui-surface)); }

.quiz-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--game-ui-muted);
    font: 700 10px/1.2 var(--game-ui-font);
    letter-spacing: .08em;
}

.quiz-footer i { width: 28px; background: linear-gradient(90deg, transparent, var(--game-ui-border)); }
.quiz-footer i:last-child { transform: rotate(180deg); }

html[data-game-theme="pixel-quest"] #quiz-modal .quiz-panel,
html[data-game-theme="pixel-quest"] #quiz-modal .option-btn { image-rendering: pixelated; box-shadow: 6px 6px 0 rgba(0, 0, 0, .38); }

html[data-game-theme="neon-grid"] #quiz-modal .quiz-panel::after { background-image: repeating-linear-gradient(0deg, transparent 0 5px, rgba(0, 229, 255, .035) 6px); }

@media (max-width: 620px) {
    #quiz-modal { align-items: flex-start; padding: 12px; }

    #quiz-modal .quiz-panel {
        width: 100%;
        min-height: 0;
        margin-block: auto;
        padding: 26px 20px 22px;
        border: 2px solid var(--game-ui-border);
        background-image: linear-gradient(145deg, var(--game-ui-surface), var(--game-ui-surface-2));
        clip-path: none;
        filter: none;
    }

    #quiz-modal .quiz-panel::after { inset: 8px; }
    #quiz-options { grid-template-columns: 1fr; }
    #quiz-modal .option-btn { min-height: 54px; }
    #quiz-modal[data-option-density="compact"] .quiz-panel,
    #quiz-modal[data-option-density="crowded"] .quiz-panel { width: 100%; }
    #quiz-modal[data-option-density="crowded"] #quiz-options { max-height: 48dvh; }
    #spelling-container { flex-direction: column; }
    #quiz-modal #submit-spelling { justify-content: center; min-height: 48px; }
    .quiz-footer { display: flex; font-size: 9px; letter-spacing: .04em; }
    .quiz-footer i { width: 16px; }
}

@media (prefers-reduced-motion: reduce) {
    #quiz-modal .option-btn { transition: none; }
}

/* Cross-surface UI contract: stable structure, replaceable shell/game skins. */
:root {
    --game-ui-surface: #071713;
    --game-ui-surface-2: #102a22;
    --game-ui-text: #edf8ef;
    --game-ui-muted: #9eb6a8;
    --game-ui-accent: #48d7b0;
    --game-ui-accent-2: #f0c96a;
    --game-ui-border: #3d7966;
    --game-ui-success: #62e6a9;
    --game-ui-danger: #ff7b72;
    --game-ui-radius: 18px;
    --game-ui-font: "Microsoft YaHei", sans-serif;
    --game-panel-image: none;
    --game-ui-frame-image: none;
    --game-title-frame-image: none;
    --game-nameplate-image: none;
    --game-reward-slot-image: none;
    --game-effect-aura-image: none;
}

:where(button, input, select, textarea, a):focus-visible {
    outline: 3px solid color-mix(in srgb, var(--shell-accent) 58%, white);
    outline-offset: 2px;
}

.modal {
    overflow-y: auto;
    padding: 20px;
}

.modal-content {
    max-height: calc(100dvh - 40px);
    overflow-y: auto;
}

.room-settings-form,
.inline-settings-form {
    gap: 14px;
}

.room-settings-form > label,
.form-grid > label,
.inline-settings-form > label {
    display: grid;
    min-width: 0;
    align-content: start;
    gap: 7px;
    color: var(--shell-text);
    line-height: 1.35;
}

.room-settings-form :is(input, textarea, select),
.inline-settings-form :is(input, select) {
    width: 100%;
    min-width: 0;
    min-height: 44px;
    margin: 0;
    padding: 10px 12px;
    border: 1px solid var(--shell-border);
    border-radius: max(5px, calc(var(--shell-radius) * .55));
    background: var(--shell-surface-2);
    color: var(--shell-text);
    font: inherit;
}

.room-settings-form textarea {
    min-height: 72px;
    resize: vertical;
}

.room-settings-form small,
.inline-settings-form small {
    margin: 0;
    color: var(--shell-muted);
    font-size: 11px;
    line-height: 1.45;
}

.form-grid {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 14px;
}

.form-grid .checkbox-field,
.inline-settings-form .checkbox-field {
    grid-template-columns: 22px minmax(0, 1fr);
    align-items: center;
    align-self: stretch;
    padding: 12px 14px;
    border: 1px solid var(--shell-border);
    border-radius: max(5px, calc(var(--shell-radius) * .55));
    background: color-mix(in srgb, var(--shell-surface-2) 72%, transparent);
}

.checkbox-field input[type="checkbox"] {
    width: 18px;
    min-height: 18px;
    margin: 0;
    accent-color: var(--shell-accent);
}

.inline-settings-form small input[type="checkbox"] {
    display: inline-block;
    width: 18px;
    min-height: 18px;
    margin: 0 6px 0 0;
    padding: 0;
    vertical-align: middle;
    accent-color: var(--shell-accent);
}

.checkbox-field small {
    grid-column: 2;
}

.inline-settings-form {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    align-items: stretch;
}

.inline-settings-form > button {
    grid-column: 1 / -1;
    justify-self: end;
    min-width: 150px;
}

#host-settings-section[data-locked="true"] .inline-settings-form {
    opacity: .62;
}

#host-settings-section[data-locked="true"] .host-label {
    color: var(--shell-muted);
}

.chat-form {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 8px;
}

.chat-form:not(:has(.chat-compose-row)) {
    grid-template-columns: minmax(0, 1fr) 52px;
}

.chat-form > input,
.chat-form .chat-compose-row > input {
    width: 100%;
    min-width: 0;
}

.chat-form:not(:has(.chat-compose-row)) > button,
.chat-compose-row > button[type="submit"] {
    min-width: 52px;
    padding-inline: 8px;
    white-space: nowrap;
    writing-mode: horizontal-tb;
}

.empty-state {
    min-height: 112px;
    display: grid;
    place-items: center;
    padding: 24px 12px;
}

.room-form-modal {
    width: min(720px, calc(100vw - 40px));
    max-width: 720px;
}

.admin-center-modal {
    width: min(1180px, calc(100vw - 40px));
    max-height: calc(100dvh - 40px);
    padding: 28px;
}

.admin-config-grid {
    grid-template-columns: repeat(2, minmax(210px, 1fr));
    align-items: stretch;
}

.admin-config-grid > label:not(.admin-config-field) {
    grid-template-columns: 22px minmax(0, 1fr);
    align-content: center;
}

.admin-config-grid .admin-config-field {
    grid-column: 1 / -1;
    gap: 8px;
    padding: 14px;
    overflow-wrap: anywhere;
}

.admin-config-grid .admin-config-field small {
    grid-column: 1;
}

.admin-layout {
    align-items: start;
}

.admin-section {
    min-width: 0;
}

/* Game surfaces must never inherit the authenticated shell theme. */
body.game-active {
    background:
        radial-gradient(circle at 50% 35%, color-mix(in srgb, var(--game-ui-accent) 12%, transparent), transparent 36rem),
        var(--game-ui-surface);
    color: var(--game-ui-text);
    font-family: var(--game-ui-font);
}

body.game-active #game-screen,
#game-over-screen,
#help-panel .help-content,
#game-info,
.game-chat-panel {
    color: var(--game-ui-text);
    border-color: var(--game-ui-border);
    border-radius: var(--game-ui-radius);
    background-color: color-mix(in srgb, var(--game-ui-surface) 94%, transparent);
    background-image:
        linear-gradient(color-mix(in srgb, var(--game-ui-surface) 76%, transparent), color-mix(in srgb, var(--game-ui-surface) 90%, transparent)),
        var(--game-panel-image);
    background-size: auto, 512px 512px;
    font-family: var(--game-ui-font);
}

body.game-active #game-screen {
    border: 1px solid var(--game-ui-border);
    box-shadow: 0 20px 70px rgba(0, 0, 0, .58), inset 0 1px color-mix(in srgb, var(--game-ui-accent) 18%, transparent);
}

#game-info {
    border: 1px solid var(--game-ui-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
    backdrop-filter: blur(14px);
    background-image:
        linear-gradient(color-mix(in srgb, var(--game-ui-surface) 72%, transparent), color-mix(in srgb, var(--game-ui-surface) 86%, transparent)),
        var(--game-ui-frame-image);
    background-size: 100% 100%;
}

#game-info .info-item,
#game-info .current-word-status,
#game-info #current-word-label,
.game-chat-panel :is(h2, p, strong) {
    color: var(--game-ui-text);
}

#game-info .info-item span:last-child,
#game-info #current-word-activation,
.game-chat-panel .eyebrow {
    color: var(--game-ui-accent);
}

body.game-active :is(.small-button, .icon-button),
#game-over-screen #restart-game,
#help-panel .close-button {
    border: 1px solid var(--game-ui-border) !important;
    border-radius: max(4px, calc(var(--game-ui-radius) * .52));
    background: color-mix(in srgb, var(--game-ui-surface-2) 94%, transparent) !important;
    color: var(--game-ui-text);
    box-shadow: 0 7px 20px rgba(0, 0, 0, .24);
    font-family: var(--game-ui-font);
}

body.game-active :is(.small-button, .icon-button):hover,
#game-over-screen #restart-game:hover,
#help-panel .close-button:hover {
    border-color: var(--game-ui-accent) !important;
    color: var(--game-ui-accent);
}

.game-chat-panel {
    border: 1px solid var(--game-ui-border);
    box-shadow: 0 18px 50px rgba(0, 0, 0, .55);
    backdrop-filter: blur(15px);
}

.game-chat-panel .chat-message {
    border-color: color-mix(in srgb, var(--game-ui-border) 52%, transparent);
}

.game-chat-panel .chat-message-meta,
.game-chat-panel .chat-message-meta time,
.game-chat-panel .chat-message p {
    color: var(--game-ui-muted);
}

.game-chat-panel .chat-form,
.game-chat-panel .chat-form input {
    border-color: var(--game-ui-border);
    background: var(--game-ui-surface-2);
    color: var(--game-ui-text);
}

.game-chat-panel .chat-form button {
    background: var(--game-ui-accent);
    color: color-mix(in srgb, var(--game-ui-surface) 90%, #000);
}

#help-panel {
    padding: 20px;
    background:
        radial-gradient(circle at 50% 35%, color-mix(in srgb, var(--game-ui-accent) 14%, transparent), transparent 30rem),
        color-mix(in srgb, var(--game-ui-surface) 76%, #000);
    backdrop-filter: blur(7px);
}

#help-panel .help-content {
    width: min(760px, calc(100vw - 40px));
    max-width: 760px;
    padding: clamp(24px, 4vw, 40px);
    border: 1px solid var(--game-ui-border);
    box-shadow: 0 28px 90px rgba(0, 0, 0, .62);
}

#help-panel .help-content > h2 {
    margin: 0 0 18px;
    color: var(--game-ui-text);
}

#help-panel .help-section {
    margin: 10px 0;
    padding: 14px 16px;
    border: 1px solid color-mix(in srgb, var(--game-ui-border) 68%, transparent);
    border-radius: max(4px, calc(var(--game-ui-radius) * .55));
    background: color-mix(in srgb, var(--game-ui-surface-2) 82%, transparent);
    color: var(--game-ui-muted);
}

#help-panel .help-section h3 {
    color: var(--game-ui-accent-2);
}

#help-panel kbd {
    border-color: var(--game-ui-border);
    background: var(--game-ui-surface);
    color: var(--game-ui-text);
}

#game-over-screen {
    position: relative;
    isolation: isolate;
    flex-direction: column;
    align-items: stretch;
    width: min(1080px, calc(100vw - 32px));
    max-width: 1080px;
    margin: max(18px, 4vh) auto;
    padding: clamp(24px, 4vw, 46px);
    overflow: hidden;
    border: 1px solid var(--game-ui-border);
    text-align: center;
    box-shadow: 0 28px 90px rgba(0, 0, 0, .55);
}

#game-over-screen h1 {
    color: var(--game-ui-accent-2);
}

#game-over-screen #game-results {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin: 24px 0 16px;
    padding: 10px;
    border: 1px solid var(--game-ui-border);
    border-radius: max(6px, calc(var(--game-ui-radius) * .72));
    background: color-mix(in srgb, var(--game-ui-surface-2) 84%, transparent);
    color: var(--game-ui-text);
}

body.completion-active {
    min-height: 100dvh;
    overflow-y: auto;
    background:
        radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--game-ui-accent-2) 18%, transparent), transparent 38rem),
        linear-gradient(135deg, color-mix(in srgb, var(--game-ui-surface) 94%, #000), color-mix(in srgb, var(--game-ui-surface-2) 88%, #000));
}

.completion-glow {
    position: absolute;
    z-index: -1;
    inset: -30% 22% auto;
    height: 320px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--game-ui-accent-2) 26%, transparent);
    filter: blur(70px);
}

.completion-heading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    text-align: left;
}

.completion-heading h1 { margin: 3px 0 5px; font-size: clamp(34px, 6vw, 66px); line-height: .98; }
.completion-kicker { margin: 0; color: var(--game-ui-accent); font: 800 11px/1.2 Consolas, monospace; letter-spacing: .2em; }
.completion-summary { margin: 0; color: var(--game-ui-muted); }
.completion-emblem {
    display: grid;
    flex: 0 0 76px;
    width: 76px;
    height: 76px;
    place-items: center;
    border: 1px solid var(--game-ui-accent-2);
    border-radius: 50%;
    color: var(--game-ui-accent-2);
    background: color-mix(in srgb, var(--game-ui-accent-2) 10%, var(--game-ui-surface));
    box-shadow: 0 0 0 8px color-mix(in srgb, var(--game-ui-accent-2) 7%, transparent), 0 0 42px color-mix(in srgb, var(--game-ui-accent-2) 22%, transparent);
    font-size: 34px;
}

#game-over-screen .result-item {
    display: grid;
    min-width: 0;
    gap: 3px;
    padding: 14px 10px;
    border: 1px solid color-mix(in srgb, var(--game-ui-border) 64%, transparent);
    border-radius: max(4px, calc(var(--game-ui-radius) * .52));
    background-color: color-mix(in srgb, var(--game-ui-surface) 68%, transparent);
    background-image: var(--game-reward-slot-image);
    background-size: 100% 100%;
}

#game-over-screen .result-item > span { color: var(--game-ui-muted); font-size: 13px; }
#game-over-screen .result-value { color: var(--game-ui-text); font-size: clamp(22px, 4vw, 34px); font-variant-numeric: tabular-nums; }
#game-over-screen .result-rank .result-value { color: var(--game-ui-accent-2); }
#game-over-screen .result-item small { color: var(--game-ui-accent); font: 800 9px/1.2 Consolas, monospace; letter-spacing: .16em; }

.completion-next { min-height: 1.5em; margin: 0 0 18px; color: var(--game-ui-muted); }
.completion-next.is-confirmed { color: var(--game-ui-success); }
.completion-dashboard { display: grid; grid-template-columns: 1.15fr .85fr; gap: 12px; text-align: left; }
.completion-panel {
    min-width: 0;
    padding: 18px;
    border: 1px solid color-mix(in srgb, var(--game-ui-border) 82%, transparent);
    border-radius: max(6px, calc(var(--game-ui-radius) * .7));
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface-2) 82%, transparent), color-mix(in srgb, var(--game-ui-surface) 90%, transparent));
    box-shadow: inset 0 1px color-mix(in srgb, var(--game-ui-accent) 10%, transparent);
}

.completion-panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 13px; }
.completion-panel-heading h2 { margin: 2px 0 0; color: var(--game-ui-text); font-size: 18px; }
.completion-panel-heading small { color: var(--game-ui-accent); font: 800 9px/1.2 Consolas, monospace; letter-spacing: .17em; }
.completion-panel-heading > span,
.completion-panel-heading > strong { color: var(--game-ui-accent-2); font-weight: 900; }
.growth-panel { grid-column: 1 / -1; }
.completion-leaderboard { display: grid; gap: 6px; }
.completion-leaderboard .leaderboard-row { border-color: color-mix(in srgb, var(--game-ui-border) 62%, transparent); background: color-mix(in srgb, var(--game-ui-surface) 72%, transparent); }
.completion-leaderboard .leaderboard-row.is-self { border-color: var(--game-ui-accent-2); box-shadow: inset 3px 0 var(--game-ui-accent-2); }
.completion-leaderboard .leaderboard-row strong { color: var(--game-ui-text); }
.global-rank-value { display: block; color: var(--game-ui-accent-2); font-size: clamp(36px, 7vw, 70px); line-height: 1; }
.global-record-panel p { margin: 10px 0 0; color: var(--game-ui-muted); }
.knowledge-points-summary { margin: 0 0 10px; color: var(--game-ui-accent-2); font-weight: 800; }
.member-identity > span:nth-child(2),
.chat-message-meta > strong,
.leaderboard-row > strong { color: var(--social-name-color, inherit); }
.social-cosmetic-title { display: inline-block; margin-left: 6px; padding: 2px 5px; border: 1px solid currentColor; border-radius: 999px; font-size: 9px; font-weight: 800; opacity: .86; vertical-align: middle; }
[data-cosmetic-avatar-frame="avatar-frame:adventure-glow"] .social-avatar { box-shadow: 0 0 0 2px #8ff0cc, 0 0 12px #8ff0cc99; }
[data-cosmetic-avatar-frame="avatar-frame:starlight-ring"] .social-avatar { box-shadow: 0 0 0 2px #8ecbff, 0 0 12px #8ecbff99; }
[data-cosmetic-avatar-frame="avatar-frame:campfire-ember"] .social-avatar { box-shadow: 0 0 0 2px #ff9f43, 0 0 12px #ff9f4399; }
.vocabulary-progress-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; color: var(--game-ui-muted); }
.vocabulary-progress-heading strong { color: var(--game-ui-text); font-size: 24px; }
.vocabulary-progress-track { height: 12px; margin-top: 9px; overflow: hidden; border: 1px solid var(--game-ui-border); border-radius: 999px; background: color-mix(in srgb, var(--game-ui-surface) 86%, #000); }
.vocabulary-progress-track i { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--game-ui-accent), var(--game-ui-accent-2)); box-shadow: 0 0 18px color-mix(in srgb, var(--game-ui-accent) 50%, transparent); transition: width 700ms cubic-bezier(.2,.8,.2,1); }
.completion-unlocks { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.unlock-chip { padding: 7px 10px; border: 1px solid color-mix(in srgb, var(--game-ui-accent-2) 68%, transparent); border-radius: 999px; color: var(--game-ui-accent-2); background: color-mix(in srgb, var(--game-ui-accent-2) 8%, transparent); font-size: 12px; font-weight: 800; }
.completion-actions { display: flex; justify-content: center; gap: 10px; margin-top: 20px; }

.room-completion-celebration {
    position: fixed;
    z-index: 850;
    top: clamp(84px, 13vh, 150px);
    left: 50%;
    width: min(560px, calc(100vw - 28px));
    padding: 20px 28px 22px;
    transform: translateX(-50%);
    pointer-events: none;
    overflow: hidden;
    border: 1px solid var(--game-ui-accent-2);
    border-radius: max(6px, calc(var(--game-ui-radius) * .7));
    background: linear-gradient(110deg, color-mix(in srgb, var(--game-ui-surface) 96%, #000), color-mix(in srgb, var(--game-ui-surface-2) 92%, #000));
    color: var(--game-ui-text);
    text-align: center;
    box-shadow: 0 24px 80px rgba(0,0,0,.62), 0 0 50px color-mix(in srgb, var(--game-ui-accent-2) 22%, transparent);
    animation: room-completion-in 3.4s cubic-bezier(.2,.8,.2,1) both;
}

.room-completion-celebration[hidden] { display: none; }
.room-completion-celebration p { margin: 0 0 4px; color: var(--game-ui-accent); font: 800 10px/1.2 Consolas, monospace; letter-spacing: .22em; }
.room-completion-celebration strong { display: block; color: var(--game-ui-accent-2); font-size: clamp(25px, 5vw, 44px); }
.room-completion-celebration span { display: block; margin-top: 5px; color: var(--game-ui-muted); font-weight: 700; }
.completion-burst { position: absolute; inset: 0; opacity: .6; }
.completion-burst i { position: absolute; top: 50%; left: 50%; width: 3px; height: 120%; background: linear-gradient(transparent, var(--game-ui-accent-2), transparent); transform-origin: center; }
.completion-burst i:nth-child(2) { transform: rotate(30deg); }
.completion-burst i:nth-child(3) { transform: rotate(60deg); }
.completion-burst i:nth-child(4) { transform: rotate(90deg); }
.completion-burst i:nth-child(5) { transform: rotate(120deg); }
.completion-burst i:nth-child(6) { transform: rotate(150deg); }
body.is-room-celebrating #game-screen { box-shadow: 0 20px 70px rgba(0,0,0,.58), inset 0 0 46px color-mix(in srgb, var(--game-ui-accent-2) 28%, transparent); }

@keyframes room-completion-in {
    0% { opacity: 0; transform: translate(-50%, -18px) scale(.92); }
    12%, 78% { opacity: 1; transform: translate(-50%, 0) scale(1); }
    100% { opacity: 0; transform: translate(-50%, -8px) scale(.98); }
}

.game-event-overlay {
    border-color: color-mix(in srgb, var(--game-ui-accent-2) 74%, white);
    background-color: color-mix(in srgb, var(--game-ui-surface) 96%, #000);
    background-image:
        linear-gradient(115deg, color-mix(in srgb, var(--game-ui-surface) 70%, transparent), color-mix(in srgb, var(--game-ui-surface-2) 66%, transparent)),
        var(--game-title-frame-image);
    background-size: 100% 100%;
    color: var(--game-ui-text);
    font-family: var(--game-ui-font);
}

.game-event-overlay::before,
.game-event-overlay::after {
    background: linear-gradient(90deg, transparent, var(--game-ui-accent-2));
}

.game-event-overlay span { color: var(--game-ui-accent-2); }
.game-event-overlay small { color: var(--game-ui-muted); font-family: var(--game-ui-font); }

html[data-game-theme="pixel-quest"] :is(#game-info, .game-chat-panel, #help-panel .help-content, #game-over-screen),
html[data-game-theme="pixel-quest"] body.game-active :is(.small-button, .icon-button) {
    image-rendering: pixelated;
    box-shadow: 5px 5px 0 rgba(0, 0, 0, .48);
}

html[data-game-theme="neon-grid"] :is(#game-info, .game-chat-panel, #help-panel .help-content, #game-over-screen) {
    background-image:
        repeating-linear-gradient(0deg, transparent 0 5px, color-mix(in srgb, var(--game-ui-accent) 4%, transparent) 5px 6px),
        var(--game-panel-image);
}

/* Room command deck: state and next action stay ahead of configuration. */
#room-screen {
    max-width: 1220px;
}

#room-screen .room-layout {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 340px);
    align-items: start;
    gap: 20px;
}

.room-main-column {
    display: grid;
    gap: 16px;
}

.room-command-center {
    position: relative;
    overflow: hidden;
    padding: 20px;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 48%, var(--shell-border));
    border-radius: var(--shell-radius);
    background:
        linear-gradient(110deg, color-mix(in srgb, var(--shell-accent) 10%, transparent), transparent 42%),
        var(--shell-surface);
    box-shadow: inset 4px 0 0 color-mix(in srgb, var(--shell-accent) 74%, white);
}

.room-command-center[data-phase="ready"],
.room-command-center[data-phase="paused"] {
    border-color: color-mix(in srgb, var(--shell-accent) 72%, var(--shell-border));
    box-shadow: inset 4px 0 0 var(--shell-accent), 0 12px 32px color-mix(in srgb, var(--shell-accent) 10%, transparent);
}

.room-command-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
}

.room-command-copy {
    min-width: 0;
}

.room-phase-line {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 4px;
}

.room-phase-line h2 {
    color: var(--shell-text);
    font-size: clamp(20px, 2.8vw, 27px);
}

.room-phase-badge {
    display: inline-flex;
    min-height: 26px;
    align-items: center;
    padding: 0 9px;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 42%, var(--shell-border));
    border-radius: 999px;
    background: color-mix(in srgb, var(--shell-accent) 12%, transparent);
    color: var(--shell-accent);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .04em;
}

.room-command-center .status-message {
    max-width: 58ch;
    margin-top: 8px;
    line-height: 1.55;
}

.room-command-center .room-actions {
    justify-content: flex-end;
}

.room-command-center .room-actions .button {
    min-height: 46px;
    padding-inline: 18px;
}

.room-command-center .room-resume-button {
    min-width: 148px;
}

.room-command-center .room-live-voice-notice {
    margin: 16px 0 0;
    padding: 12px 0 0;
    border: 0;
    border-top: 1px solid color-mix(in srgb, var(--shell-border) 76%, transparent);
    border-radius: 0;
    background: transparent;
}

.room-overview-grid {
    display: grid;
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
    align-items: stretch;
    gap: 16px;
}

#room-screen .room-overview-grid > .room-section,
#room-screen .room-settings-panel {
    margin: 0;
    padding: 18px;
    border: 1px solid var(--shell-border);
    border-radius: var(--shell-radius);
}

.room-overview-grid .leaderboard-card {
    min-height: 148px;
}

.room-settings-panel > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    list-style: none;
}

.room-settings-panel > summary::-webkit-details-marker {
    display: none;
}

.room-settings-panel > summary:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--shell-accent) 58%, white);
    outline-offset: 6px;
}

.room-settings-panel > summary h2 {
    margin-top: 3px;
}

.room-settings-summary-action {
    display: flex;
    align-items: center;
    gap: 10px;
}

.room-settings-chevron {
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--shell-accent);
    border-bottom: 2px solid var(--shell-accent);
    transform: rotate(45deg) translateY(-2px);
    transition: transform 160ms ease;
}

.room-settings-panel[open] .room-settings-chevron {
    transform: rotate(225deg) translate(-2px, -2px);
}

.room-setting-facts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin-top: 14px;
}

.room-setting-facts span {
    min-width: 0;
    padding: 8px 10px;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--shell-border) 78%, transparent);
    border-radius: max(4px, calc(var(--shell-radius) * .5));
    background: color-mix(in srgb, var(--shell-surface-2) 76%, transparent);
    color: var(--shell-muted);
    font-size: 11px;
    font-weight: 700;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.room-settings-panel .inline-settings-form {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--shell-border);
}

#host-settings-section[data-locked="true"] .inline-settings-form {
    opacity: .48;
}

.room-chat-panel {
    position: sticky;
    top: 20px;
    min-height: min(560px, calc(100dvh - 40px));
    max-height: calc(100dvh - 40px);
    padding: 18px;
    overflow: hidden;
    border: 1px solid var(--shell-border);
    border-radius: var(--shell-radius);
}

.room-chat-intro {
    margin: -5px 0 12px;
    color: var(--shell-muted);
    font-size: 11px;
}

.room-chat-panel .chat-messages {
    min-height: 210px;
    overflow-y: auto;
}

.room-chat-panel .chat-form {
    flex: 0 0 auto;
    padding-top: 12px;
    border-top: 1px solid color-mix(in srgb, var(--shell-border) 76%, transparent);
}

@media (max-width: 820px) {
    .form-grid,
    .inline-settings-form,
    .admin-layout,
    .admin-config-grid {
        grid-template-columns: 1fr;
    }

    .admin-config-grid .admin-config-field,
    .inline-settings-form > button,
    .admin-users-section {
        grid-column: 1;
    }

    #room-screen .room-layout,
    .room-overview-grid {
        grid-template-columns: 1fr;
    }

    .room-chat-panel {
        position: static;
        min-height: 0;
        max-height: none;
        padding: 18px;
        border: 1px solid var(--shell-border);
    }

    .room-chat-panel .chat-messages {
        min-height: 160px;
        max-height: 300px;
    }

    .admin-center-modal {
        width: calc(100vw - 20px);
        max-height: calc(100dvh - 20px);
        padding: 18px;
    }
}

@media (max-width: 560px) {
    .modal { padding: 10px; }
    .modal-content { max-height: calc(100dvh - 20px); }
    .room-form-modal,
    #help-panel .help-content { width: 100%; padding: 20px 16px; }
    .form-actions { display: grid; grid-template-columns: 1fr 1fr; }
    .form-actions .button { width: 100%; }
    .chat-form:not(:has(.chat-compose-row)) { grid-template-columns: minmax(0, 1fr) 56px; }
    .admin-inline-form { align-items: stretch; flex-direction: column; }
    .admin-inline-form .button { width: 100%; }
    #game-over-screen { margin: 16px auto; padding: 24px 18px; }
    .completion-heading { align-items: flex-start; }
    .completion-emblem { flex-basis: 54px; width: 54px; height: 54px; font-size: 25px; }
    #game-over-screen #game-results { grid-template-columns: 1fr 1fr; }
    .completion-dashboard { grid-template-columns: 1fr; }
    .growth-panel { grid-column: auto; }
    .completion-actions { display: grid; grid-template-columns: 1fr 1fr; }

    #room-screen .room-header {
        gap: 16px;
    }

    #room-screen .header-actions {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        width: 100%;
    }

    #room-screen .user-chip {
        justify-content: center;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .room-command-center {
        padding: 16px;
    }

    .room-command-grid {
        grid-template-columns: 1fr;
        align-items: stretch;
        gap: 14px;
    }

    .room-command-center .room-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .room-command-center .room-actions .button {
        width: 100%;
    }

    .room-command-center .room-live-voice-notice {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
    }

    .room-setting-facts {
        grid-template-columns: 1fr 1fr;
    }

    .room-settings-panel > summary {
        align-items: flex-start;
    }

    .room-settings-summary-action {
        align-items: flex-end;
        flex-direction: column;
        gap: 5px;
    }

    .room-chat-panel .chat-messages {
        min-height: 132px;
        max-height: 240px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .room-completion-celebration { animation-duration: 1.8s; }
    .completion-burst { display: none; }
    .vocabulary-progress-track i { transition: none; }
}

/* Compact navigation: theme controls are a user-opened top-bar tool, never a persistent overlay. */
.app-header {
    align-items: center;
}

.app-header > :first-child {
    min-width: 0;
}

.header-actions {
    align-items: center;
}

.header-actions > .button,
.header-actions > .user-chip {
    min-height: 40px;
    line-height: 1;
    white-space: nowrap;
}

.theme-menu {
    position: relative;
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
}

.theme-menu > summary {
    list-style: none;
}

.theme-menu > summary::-webkit-details-marker {
    display: none;
}

.theme-menu-trigger {
    display: grid;
    width: 44px;
    height: 44px;
    padding: 3px;
    place-items: center;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 62%, var(--shell-border));
    border-radius: 50%;
    background: var(--shell-surface-2);
    box-shadow: 0 7px 20px color-mix(in srgb, var(--shell-bg) 44%, transparent);
    cursor: pointer;
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.theme-menu-trigger:hover,
.theme-menu[open] .theme-menu-trigger {
    border-color: var(--shell-accent-2);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--shell-accent-2) 18%, transparent), 0 9px 24px color-mix(in srgb, var(--shell-bg) 52%, transparent);
    transform: translateY(-1px);
}

.theme-menu-visual {
    position: relative;
    display: block;
    width: 36px;
    height: 36px;
    overflow: hidden;
    border-radius: 50%;
    background-image: var(--theme-button-ring-image, none);
    background-position: center;
    background-size: contain;
}

.theme-menu-visual img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    object-fit: cover;
}

#lobby-screen .header-actions .theme-menu > .theme-controls {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    left: auto;
    bottom: auto;
    z-index: 1250;
    display: grid;
    width: min(320px, calc(100vw - 32px));
    max-height: min(70dvh, 480px);
    margin: 0;
    padding: 14px;
    overflow-y: auto;
    grid-template-columns: 1fr;
    align-items: stretch;
    transform: none;
}

#lobby-screen .header-actions .theme-menu:not([open]) > .theme-controls {
    display: none;
}

#lobby-screen .theme-controls-heading {
    grid-column: auto;
}

.public-theme-picker {
    position: static;
    width: 100%;
    margin: 0 0 24px;
}

.lobby-layout {
    align-items: start;
}

#lobby-screen .chat-panel {
    position: sticky;
    top: 20px;
    align-self: start;
    min-height: min(560px, calc(100dvh - 40px));
    max-height: calc(100dvh - 40px);
    padding: 18px;
    overflow: hidden;
    border: 1px solid var(--shell-border);
}

#lobby-screen .chat-panel .chat-messages {
    min-height: 220px;
    max-height: none;
}

.leaderboard-row strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.leaderboard-row > span:last-child {
    white-space: nowrap;
}

.rank-badge {
    flex: 0 0 25px;
}

/* Public social skins. Text remains live HTML; bitmaps only frame stable regions. */
.social-avatar {
    position: relative;
    display: inline-grid;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    place-items: center;
    overflow: visible;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 44%, var(--shell-border));
    border-radius: 50%;
    background: color-mix(in srgb, var(--shell-accent) 12%, var(--shell-surface-2));
    color: var(--shell-text);
    font-size: 12px;
    font-weight: 900;
}

.social-avatar::after {
    content: "";
    position: absolute;
    z-index: 2;
    inset: -10%;
    pointer-events: none;
    border-radius: 50%;
    background-image: var(--cosmetic-avatar-image, none), var(--social-avatar-frame, none);
    background-position: center, var(--social-avatar-frame-position, center);
    background-size: 100% 100%, var(--social-avatar-frame-size, 100% 100%);
    background-repeat: no-repeat;
}

[data-cosmetic-avatar] .social-avatar,
.social-avatar[data-cosmetic-avatar] {
    border-color: transparent;
    background-image: var(--cosmetic-avatar-portrait);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    color: transparent;
}

[data-social-ready="true"] .social-avatar,
.social-avatar[data-social-ready="true"] {
    border-color: transparent;
    background-image: var(--cosmetic-avatar-portrait, var(--social-theme-icon, none));
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

.social-vocabulary-chip {
    display: inline-grid;
    box-sizing: border-box;
    width: 84px;
    min-width: 84px;
    height: 30px;
    min-height: 30px;
    flex: 0 0 84px;
    grid-template-columns: 29px minmax(0, 1fr);
    align-items: center;
    padding: 2px 5px 2px 3px;
    border: 1px solid color-mix(in srgb, var(--shell-accent) 48%, var(--shell-border));
    border-radius: 999px;
    color: var(--shell-muted);
    background-color: color-mix(in srgb, var(--shell-surface-2) 94%, transparent);
    background-image: var(--social-vocabulary-frame, none);
    background-position: var(--social-vocabulary-frame-position, center);
    background-size: var(--social-vocabulary-frame-size, 100% 100%);
    background-repeat: no-repeat;
    font-size: 11px;
    font-weight: 900;
    white-space: nowrap;
    overflow: hidden;
    text-shadow: 0 1px 3px var(--shell-bg), 0 0 3px var(--shell-bg);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, white 8%, transparent);
}

.social-stat-runs,
.social-stat-words {
    display: inline-flex;
    min-width: 0;
    align-items: baseline;
    justify-content: center;
    gap: 1px;
    overflow: hidden;
    line-height: 1;
}

.social-stat-runs { color: color-mix(in srgb, var(--shell-accent) 72%, var(--shell-text)); }
.social-stat-words { color: var(--shell-text); }
.social-stat-runs b,
.social-stat-words b { overflow: hidden; font-size: 10px; text-overflow: ellipsis; }
.social-stat-runs i,
.social-stat-words i { font-size: 8px; font-style: normal; }

.social-vocabulary-chip[hidden] {
    display: none !important;
}

.social-vocabulary-chip[data-material-social-vocabulary-frame="ready"] {
    border-color: color-mix(in srgb, var(--shell-accent) 54%, var(--shell-border));
    background-color: color-mix(in srgb, var(--shell-surface-2) 90%, transparent);
    color: var(--shell-text);
}

.chat-message[data-social-ready="true"] {
    position: relative;
    width: min(100%, 286px);
    padding: 20px 18px 18px;
    isolation: isolate;
    border-bottom-color: transparent;
    border-radius: max(5px, calc(var(--shell-radius) * .55));
    background: color-mix(in srgb, var(--shell-surface-2) 90%, transparent);
}

.chat-message[data-social-ready="true"]::before {
    position: absolute;
    z-index: 0;
    inset: 0;
    border: 18px solid transparent;
    border-image-source: var(--social-chat-bubble, none);
    border-image-slice: 18% 9%;
    border-image-width: 18px 16px;
    border-image-repeat: stretch;
    content: '';
    pointer-events: none;
}

.chat-message[data-social-ready="true"] > * {
    position: relative;
    z-index: 1;
}

.chat-message.own-message[data-social-ready="true"] {
    align-self: flex-end;
}

.chat-panel:not(.game-chat-panel) .chat-message-meta,
.chat-panel:not(.game-chat-panel) .chat-message-meta strong {
    color: var(--shell-text);
}

.chat-panel:not(.game-chat-panel) .chat-message-meta time {
    color: var(--shell-muted);
}

.chat-panel:not(.game-chat-panel) .chat-message p {
    color: color-mix(in srgb, var(--shell-text) 88%, var(--shell-muted));
}

.chat-message-meta {
    align-items: center;
}

.chat-message-meta strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-message-meta time {
    margin-left: auto;
    white-space: nowrap;
}

.member-avatar.social-avatar {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
}

.member-item[data-social-ready="true"] {
    position: relative;
    min-height: 62px;
    padding: 12px 16px;
    isolation: isolate;
    border-color: transparent;
    background: color-mix(in srgb, var(--shell-surface-2) 92%, transparent);
}

.member-item[data-social-ready="true"]::before {
    position: absolute;
    z-index: 0;
    inset: 0;
    border: 14px solid transparent;
    border-image-source: var(--social-chat-bubble, none);
    border-image-slice: 18% 9%;
    border-image-width: 14px 12px;
    border-image-repeat: stretch;
    content: '';
    pointer-events: none;
}

.member-item[data-social-ready="true"] > * {
    position: relative;
    z-index: 1;
}

.member-item[data-social-ready="true"] .member-identity {
    color: var(--shell-text);
}

[data-voice-component="composer"][data-social-ready="true"] .chat-compose-row {
    position: relative;
    padding: 20px 16px 16px;
    isolation: isolate;
    border-color: transparent;
    background: color-mix(in srgb, var(--voice-panel) 94%, transparent);
}

[data-voice-component="composer"][data-social-ready="true"] .chat-compose-row::before {
    position: absolute;
    z-index: 0;
    inset: 0;
    border: 18px solid transparent;
    border-image-source: var(--social-chat-bubble, none);
    border-image-slice: 18% 9%;
    border-image-width: 18px 16px;
    border-image-repeat: stretch;
    content: '';
    pointer-events: none;
}

[data-voice-component="composer"][data-social-ready="true"] .chat-compose-row > * {
    position: relative;
    z-index: 1;
}

.leaderboard-row[data-social-ready="true"] {
    position: relative;
    display: grid;
    min-height: 68px;
    grid-template-columns: 30px 32px minmax(0, 1fr) 52px 22px auto;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    isolation: isolate;
    border-color: transparent;
    background: color-mix(in srgb, var(--shell-surface-2) 92%, transparent);
}

.leaderboard-row[data-social-ready="true"]::before {
    position: absolute;
    z-index: 0;
    inset: 0;
    border: 12px solid transparent;
    border-image-source: var(--social-leaderboard-row, none);
    border-image-slice: 20% 7%;
    border-image-width: 12px 10px;
    border-image-repeat: stretch;
    content: '';
    pointer-events: none;
}

.leaderboard-row[data-social-ready="true"] > * {
    position: relative;
    z-index: 1;
}

.leaderboard-row .social-avatar {
    width: 32px;
    height: 32px;
    flex-basis: 32px;
    background-image: var(--social-leaderboard-avatar-frame, var(--social-theme-icon, none));
}

.leaderboard-row .rank-badge {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
    border-radius: 50%;
    background-color: var(--shell-accent);
    background-image: var(--social-rank-badge, var(--social-rank-frame, none));
    background-position: var(--social-rank-badge-position, center);
    background-size: var(--social-rank-badge-size, 100% 100%);
    background-repeat: no-repeat;
}

.leaderboard-row .social-vocabulary-chip {
    min-width: 62px;
}

.leaderboard-scope-badge {
    width: 22px;
    height: 22px;
    flex: 0 0 22px;
    background-image: var(--social-scope-badge, none);
    background-position: var(--social-scope-badge-position, center);
    background-size: var(--social-scope-badge-size, contain);
    background-repeat: no-repeat;
}

@media (max-width: 980px) {
    #lobby-screen .app-header {
        align-items: stretch;
        flex-direction: column;
        gap: 18px;
    }

    #lobby-screen .header-actions {
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 800px) {
    #lobby-screen .chat-panel {
        position: static;
        min-height: 300px;
        max-height: none;
        padding: 18px;
        border: 1px solid var(--shell-border);
    }
}

@media (max-width: 560px) {
    #lobby-screen .header-actions {
        align-items: stretch;
    }

    #lobby-screen .header-actions .user-chip {
        min-width: 0;
        flex: 1 1 calc(100% - 54px);
        justify-content: center;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    #lobby-screen .header-actions > .button {
        flex: 1 1 92px;
        padding-inline: 10px;
    }

    #lobby-screen .header-actions .theme-menu > .theme-controls {
        position: fixed;
        inset: auto max(10px, env(safe-area-inset-right)) max(10px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
        width: auto;
        max-height: min(72dvh, 480px);
    }

    .public-theme-picker {
        width: 100%;
        margin-bottom: 20px;
    }

    .leaderboard-row {
        display: grid;
        width: 100%;
        max-width: 100%;
        grid-template-columns: 30px minmax(0, 1fr) auto;
        gap: 2px 7px;
        min-height: 64px;
        padding: 10px 14px;
        box-sizing: border-box;
    }

    .leaderboard-row .social-avatar,
    .leaderboard-scope-badge {
        display: none;
    }

    .leaderboard-row .rank-badge {
        grid-column: 1;
        grid-row: 1 / span 2;
    }

    .leaderboard-row strong {
        grid-column: 2;
        grid-row: 1;
    }

    .leaderboard-row .social-vocabulary-chip {
        grid-column: 3;
        grid-row: 1;
    }

    .leaderboard-row > span:last-child {
        min-width: 0;
        grid-column: 2 / 4;
        grid-row: 2;
        overflow: hidden;
        font-size: 11px;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

@container (max-width: 380px) {
    [data-voice-component="composer"][data-social-ready="true"] .chat-compose-row {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    [data-voice-component="composer"][data-social-ready="true"] :is(.speech-synthesize-button, .voice-record-button, .voice-transcribe-button) {
        min-width: 0;
        padding-inline: 5px;
    }

    [data-voice-component="composer"][data-social-ready="true"] .voice-action-label {
        font-size: 10px;
        white-space: nowrap;
    }

    [data-voice-component="composer"][data-social-ready="true"] .chat-compose-row > button[type="submit"] {
        width: 100%;
        min-width: 0;
        grid-column: 1 / -1;
        padding-inline: 11px;
    }
}

@media (max-width: 360px) {
    #lobby-screen .header-actions > .button {
        min-width: 0;
        flex-basis: 82px;
        font-size: 12px;
    }

    .theme-menu,
    .theme-menu-trigger {
        width: 40px;
        height: 40px;
    }

    .theme-menu {
        flex-basis: 40px;
    }

    .theme-menu-visual {
        width: 32px;
        height: 32px;
    }
}

/* 2026-08-27 UI containment pass.
 * Dynamic text owns the layout. Generated art is identity/decorative data and
 * must never stretch, clip, or move live controls. */
.leaderboard-list,
.member-list,
.chat-messages,
.leaderboard-row,
.member-item,
.chat-message,
.chat-compose-row {
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
}

.leaderboard-list .empty-state {
    width: 100%;
    margin: 0;
    padding: 22px 14px;
    border: 1px dashed color-mix(in srgb, var(--shell-border) 78%, transparent);
    border-radius: max(5px, calc(var(--shell-radius) * .55));
    color: var(--shell-muted);
    background: color-mix(in srgb, var(--shell-surface-2) 74%, transparent);
    text-align: center;
}

.leaderboard-row[data-social-ready="true"] {
    grid-template-columns: 30px 32px minmax(7rem, 1fr) auto 22px max-content;
    min-height: 60px;
    gap: 9px;
    padding: 10px 13px;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--shell-border) 84%, var(--shell-accent) 16%);
    border-radius: max(6px, calc(var(--shell-radius) * .62));
    background:
        linear-gradient(90deg, color-mix(in srgb, var(--shell-accent) 9%, transparent), transparent 22%),
        color-mix(in srgb, var(--shell-surface-2) 94%, transparent);
    box-shadow: inset 3px 0 color-mix(in srgb, var(--shell-accent) 64%, transparent);
}

.leaderboard-row[data-social-ready="true"].is-self {
    border-color: color-mix(in srgb, var(--shell-accent-2) 72%, var(--shell-border));
    background:
        linear-gradient(90deg, color-mix(in srgb, var(--shell-accent-2) 14%, transparent), transparent 28%),
        color-mix(in srgb, var(--shell-surface-2) 94%, transparent);
    box-shadow: inset 3px 0 var(--shell-accent-2), 0 0 0 1px color-mix(in srgb, var(--shell-accent-2) 12%, transparent);
}

/* Wide AI frames have irregular internal rails; do not use them as dynamic row geometry. */
.leaderboard-row[data-social-ready="true"]::before,
.member-item[data-social-ready="true"]::before,
[data-voice-component="composer"][data-social-ready="true"] .chat-compose-row::before {
    display: none;
}

.leaderboard-row[data-social-ready="true"]::after,
.member-item[data-social-ready="true"]::after {
    position: absolute;
    z-index: 0;
    right: 8px;
    width: 38px;
    height: 38px;
    background: var(--social-theme-icon, none) center / contain no-repeat;
    content: '';
    opacity: .08;
    pointer-events: none;
}

/* The theme watermark has no informational value in a compact ranking row and
   visually collides with the fitted vocabulary frame at the trailing edge. */
.leaderboard-row[data-social-ready="true"]::after {
    display: none;
}

.leaderboard-row[data-social-ready="true"] > span:last-child {
    max-width: 15rem;
    overflow: hidden;
    text-overflow: ellipsis;
}

.member-item[data-social-ready="true"] {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 60px;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--shell-border) 86%, var(--shell-accent) 14%);
    border-radius: max(6px, calc(var(--shell-radius) * .58));
    background:
        linear-gradient(90deg, color-mix(in srgb, var(--shell-accent) 8%, transparent), transparent 32%),
        color-mix(in srgb, var(--shell-surface-2) 94%, transparent);
}

.member-item[data-social-ready="true"] .member-identity {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) auto auto;
    min-width: 0;
    align-items: center;
}

.member-item[data-social-ready="true"] .member-identity > span:nth-child(2) {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.member-item[data-social-ready="true"] .member-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.chat-message[data-social-ready="true"] {
    width: min(100%, 330px);
    padding: 13px 14px;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--shell-border) 84%, var(--shell-accent) 16%);
    border-radius: max(7px, calc(var(--shell-radius) * .68));
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--shell-accent) 9%, transparent), transparent 56%),
        color-mix(in srgb, var(--shell-surface-2) 94%, transparent);
    box-shadow: inset 3px 0 color-mix(in srgb, var(--shell-accent) 52%, transparent);
}

.chat-message.own-message[data-social-ready="true"] {
    border-color: color-mix(in srgb, var(--shell-accent-2) 48%, var(--shell-border));
    box-shadow: inset -3px 0 color-mix(in srgb, var(--shell-accent-2) 64%, transparent);
}

.chat-message[data-social-ready="true"]::before {
    display: none;
}

.chat-message-meta {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    gap: 7px;
}

.chat-message p,
.chat-message .voice-message-copy {
    overflow-wrap: anywhere;
}

[data-voice-component="composer"][data-social-ready="true"] .chat-compose-row {
    padding: 7px;
    overflow: hidden;
    border: 1px solid var(--voice-line);
    border-radius: 14px;
    background:
        linear-gradient(135deg, var(--voice-panel), color-mix(in srgb, var(--shell-surface) 88%, var(--voice-accent) 12%));
    box-shadow: inset 3px 0 color-mix(in srgb, var(--voice-accent) 62%, transparent), 0 10px 26px rgb(0 0 0 / 9%);
}

.room-form-modal,
.admin-center-modal,
#help-panel .help-content {
    scrollbar-width: thin;
    scrollbar-color: var(--shell-accent) color-mix(in srgb, var(--shell-surface-2) 78%, transparent);
}

.room-form-modal::-webkit-scrollbar,
.admin-center-modal::-webkit-scrollbar,
#help-panel .help-content::-webkit-scrollbar {
    width: 8px;
}

.room-form-modal::-webkit-scrollbar-thumb,
.admin-center-modal::-webkit-scrollbar-thumb,
#help-panel .help-content::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: var(--shell-accent);
}

.admin-center-modal :is(input:not([type="checkbox"]):not([type="radio"]), textarea, select) {
    min-width: 0;
    border: 1px solid var(--shell-border);
    border-radius: max(5px, calc(var(--shell-radius) * .5));
    background: var(--shell-surface);
    color: var(--shell-text);
    color-scheme: dark;
}

.admin-center-modal :is(input, textarea)::placeholder {
    color: color-mix(in srgb, var(--shell-muted) 72%, transparent);
}

.admin-center-modal > .modal-heading,
.room-form-modal > .modal-heading {
    position: sticky;
    z-index: 4;
    top: -28px;
    margin: -28px -28px 18px;
    padding: 22px 28px 16px;
    border-bottom: 1px solid var(--shell-border);
    background: color-mix(in srgb, var(--shell-surface) 96%, transparent);
    backdrop-filter: blur(14px);
}

@media (max-width: 920px) {
    .leaderboard-row[data-social-ready="true"] {
        grid-template-columns: 30px 32px minmax(0, 1fr) auto max-content;
    }

    .leaderboard-row[data-social-ready="true"] .leaderboard-scope-badge {
        display: none;
    }
}

@media (max-width: 560px) {
    .leaderboard-row[data-social-ready="true"] {
        grid-template-columns: 30px minmax(0, 1fr) auto;
        grid-template-rows: auto auto;
        gap: 3px 8px;
        min-height: 64px;
        padding: 9px 11px;
    }

    .leaderboard-row[data-social-ready="true"] .social-avatar,
    .leaderboard-row[data-social-ready="true"] .leaderboard-scope-badge {
        display: none;
    }

    .leaderboard-row[data-social-ready="true"] .rank-badge {
        grid-column: 1;
        grid-row: 1 / span 2;
    }

    .leaderboard-row[data-social-ready="true"] strong {
        grid-column: 2;
        grid-row: 1;
    }

    .leaderboard-row[data-social-ready="true"] .social-vocabulary-chip {
        grid-column: 3;
        grid-row: 1;
    }

    .leaderboard-row[data-social-ready="true"] > span:last-child {
        grid-column: 2 / 4;
        grid-row: 2;
        max-width: 100%;
        font-size: 11px;
    }

    .member-item[data-social-ready="true"] {
        grid-template-columns: 1fr;
    }

    .member-item[data-social-ready="true"] .member-actions {
        padding-left: 46px;
        justify-content: flex-start;
    }

    .chat-message-meta {
        grid-template-columns: auto minmax(0, 1fr) auto;
    }

    .chat-message-meta .social-vocabulary-chip {
        display: none;
    }

    .admin-center-modal > .modal-heading,
    .room-form-modal > .modal-heading {
        top: -18px;
        margin: -18px -18px 16px;
        padding: 16px 18px 14px;
    }
}

/* Full-surface visual contract. Shell screens use shell tokens; every
 * in-game overlay uses the equipped game UI pack and keeps live text in DOM. */
:is(#quiz-modal, #adventure-interaction-modal, #buff-modal) {
    overflow-y: auto;
    padding: 18px;
    background:
        radial-gradient(circle at 50% 46%, color-mix(in srgb, var(--game-ui-accent) 13%, transparent), transparent 34rem),
        color-mix(in srgb, var(--game-ui-surface) 70%, #000 30%);
    backdrop-filter: blur(6px) brightness(.58);
}

:is(#adventure-interaction-modal, #buff-modal) .modal-content {
    position: relative;
    isolation: isolate;
    width: min(700px, calc(100vw - 36px));
    max-width: none;
    max-height: calc(100dvh - 36px);
    margin: auto;
    padding: clamp(44px, 6vw, 72px) clamp(42px, 7vw, 82px);
    overflow-y: auto;
    border: 2px solid color-mix(in srgb, var(--game-ui-border) 88%, var(--game-ui-accent) 12%);
    border-radius: var(--game-ui-radius);
    background-color: var(--game-ui-surface);
    background-image:
        linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface) 86%, transparent), color-mix(in srgb, var(--game-ui-surface-2) 82%, transparent)),
        var(--game-quiz-panel-image);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 100% 100%, 112% 112%;
    color: var(--game-ui-text);
    box-shadow: 0 34px 100px rgba(0, 0, 0, .66), 0 0 60px color-mix(in srgb, var(--game-ui-accent) 15%, transparent);
    font-family: var(--game-ui-font);
}

:is(#adventure-interaction-modal, #buff-modal) .modal-content::after {
    position: absolute;
    z-index: -1;
    inset: clamp(24px, 4vw, 44px);
    border: 1px solid color-mix(in srgb, var(--game-ui-accent) 38%, transparent);
    border-radius: max(4px, calc(var(--game-ui-radius) * .65));
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface) 94%, transparent), color-mix(in srgb, var(--game-ui-surface-2) 86%, transparent));
    box-shadow: inset 0 0 45px rgba(0, 0, 0, .36);
    content: '';
}

:is(#adventure-interaction-modal, #buff-modal) h2 {
    margin: 0;
    color: var(--game-ui-text);
    font: 800 clamp(18px, 2.7vw, 25px)/1.3 var(--game-ui-font);
    text-align: center;
}

#adventure-interaction-options,
#buff-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

:is(#adventure-interaction-modal, #buff-modal) .option-btn {
    display: block;
    min-width: 0;
    min-height: 58px;
    padding: 12px 15px;
    border: 1px solid color-mix(in srgb, var(--game-ui-border) 92%, #fff 8%);
    border-radius: max(3px, calc(var(--game-ui-radius) * .58));
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface-2) 92%, #fff 8%), var(--game-ui-surface-2));
    color: var(--game-ui-text);
    box-shadow: inset 0 1px rgba(255, 255, 255, .06), 0 5px 16px rgba(0, 0, 0, .22);
    font: 700 14px/1.4 var(--game-ui-font);
    text-align: left;
    overflow-wrap: anywhere;
}

:is(#adventure-interaction-modal, #buff-modal) .option-btn:hover:not(:disabled),
:is(#adventure-interaction-modal, #buff-modal) .option-btn:focus-visible {
    border-color: var(--game-ui-accent);
    outline: 2px solid color-mix(in srgb, var(--game-ui-accent) 24%, transparent);
    outline-offset: 2px;
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-accent) 17%, var(--game-ui-surface-2)), var(--game-ui-surface-2));
}

#adventure-spelling-container {
    align-items: stretch;
    flex-wrap: wrap;
    gap: 10px;
}

#adventure-spelling-input {
    min-width: 0;
    flex: 1;
    border: 1px solid var(--game-ui-border);
    border-radius: max(3px, calc(var(--game-ui-radius) * .58));
    background: var(--game-ui-surface-2);
    color: var(--game-ui-text);
    caret-color: var(--game-ui-accent);
    font: 800 18px/1.2 var(--game-ui-font);
}

#adventure-spelling-container button,
#skip-adventure-interaction {
    min-height: 46px;
    border: 1px solid var(--game-ui-border);
    border-radius: max(3px, calc(var(--game-ui-radius) * .58));
    background: color-mix(in srgb, var(--game-ui-accent) 16%, var(--game-ui-surface-2));
    color: var(--game-ui-text);
    font-family: var(--game-ui-font);
    font-weight: 800;
}

#adventure-screen-keyboard {
    display: grid;
    flex: 1 0 100%;
    gap: 6px;
    padding: 10px;
    border: 1px solid color-mix(in srgb, var(--game-ui-border) 72%, var(--game-ui-accent) 28%);
    border-radius: max(4px, calc(var(--game-ui-radius) * .7));
    background:
        linear-gradient(145deg, color-mix(in srgb, var(--game-ui-accent) 8%, transparent), transparent),
        var(--game-ui-surface);
    box-shadow: inset 0 1px color-mix(in srgb, var(--game-ui-accent) 20%, transparent), 0 8px 24px rgba(0, 0, 0, .2);
}

.adventure-keyboard-row {
    display: flex;
    justify-content: center;
    gap: 5px;
}

#adventure-screen-keyboard button {
    width: clamp(30px, 6.8vw, 43px);
    min-height: 38px;
    padding: 5px 3px;
    border-color: color-mix(in srgb, var(--game-ui-border) 68%, var(--game-ui-accent) 32%);
    background: linear-gradient(180deg,
        color-mix(in srgb, var(--game-ui-surface-2) 88%, var(--game-ui-accent) 12%),
        var(--game-ui-surface-2));
    box-shadow: inset 0 1px rgba(255, 255, 255, .08), 0 3px 0 color-mix(in srgb, var(--game-ui-border) 80%, #000);
    color: var(--game-ui-text);
    font: 900 13px/1 var(--game-ui-font);
    touch-action: manipulation;
}

#adventure-screen-keyboard button:hover:not(:disabled),
#adventure-screen-keyboard button:focus-visible,
#adventure-screen-keyboard button:active {
    border-color: var(--game-ui-accent);
    outline: 2px solid color-mix(in srgb, var(--game-ui-accent) 24%, transparent);
    background: color-mix(in srgb, var(--game-ui-accent) 22%, var(--game-ui-surface-2));
    transform: translateY(1px);
    box-shadow: inset 0 1px rgba(255, 255, 255, .08), 0 1px 0 var(--game-ui-border);
}

.adventure-keyboard-actions button {
    width: auto;
    min-width: 86px;
    padding-inline: 12px;
}

#adventure-interaction-result {
    min-height: 1.5em;
    padding: 8px 10px;
    border: 1px solid transparent;
    border-radius: max(3px, calc(var(--game-ui-radius) * .52));
    color: var(--game-ui-accent-2);
    font-weight: 900;
    text-align: center;
    transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

#adventure-interaction-result:empty { padding: 0; }
#adventure-interaction-result.is-pending { color: var(--game-ui-muted); }
#adventure-interaction-result.is-correct { border-color: color-mix(in srgb, var(--game-ui-success) 56%, transparent); color: var(--game-ui-success); background: color-mix(in srgb, var(--game-ui-success) 12%, var(--game-ui-surface)); }
#adventure-interaction-result.is-incorrect { border-color: color-mix(in srgb, var(--game-ui-danger) 56%, transparent); color: var(--game-ui-danger); background: color-mix(in srgb, var(--game-ui-danger) 12%, var(--game-ui-surface)); }
#adventure-interaction-result { white-space: pre-line; }
#adventure-interaction-modal.is-resolved :is(#adventure-interaction-options, #adventure-spelling-container) { display: none !important; }

body.game-active .game-chat-panel {
    height: min(340px, calc(100dvh - 176px));
    min-height: 276px;
}

body.game-active .game-chat-panel .game-chat-content {
    overflow: hidden;
}

body.game-active .game-chat-panel .chat-messages {
    min-height: 0;
    overflow-y: auto;
}

body.game-active .game-chat-panel [data-voice-component="composer"] {
    flex: 0 0 auto;
}

body.game-active [data-voice-component] {
    --voice-accent: var(--game-ui-accent);
    --voice-line: color-mix(in srgb, var(--game-ui-border) 76%, var(--game-ui-accent) 24%);
    --voice-panel: color-mix(in srgb, var(--game-ui-surface-2) 94%, transparent);
    --voice-glow: color-mix(in srgb, var(--game-ui-accent) 18%, transparent);
    color: var(--game-ui-text);
    font-family: var(--game-ui-font);
}

body.game-active [data-voice-component="composer"] .chat-compose-row {
    background: linear-gradient(145deg, color-mix(in srgb, var(--game-ui-surface-2) 96%, #fff 4%), var(--game-ui-surface));
}

body.game-active [data-voice-component="composer"] .chat-compose-row > input {
    color: var(--game-ui-text);
}

body.game-active [data-voice-component="composer"] .chat-compose-row > input::placeholder {
    color: color-mix(in srgb, var(--game-ui-muted) 84%, transparent);
}

body.game-active [data-voice-component="live-room"] {
    background:
        radial-gradient(circle at 8% 50%, var(--voice-glow), transparent 42%),
        color-mix(in srgb, var(--game-ui-surface-2) 94%, transparent);
}

body.game-active .game-chat-panel [data-voice-component="composer"] .chat-compose-row {
    padding: 7px;
}

body.game-active .game-chat-panel [data-voice-component="composer"] .chat-compose-row::before {
    display: none;
}

body.game-active .game-chat-panel [data-voice-component="composer"] .chat-compose-row > input {
    min-height: 38px;
}

@media (max-width: 620px) {
    :is(#quiz-modal, #adventure-interaction-modal, #buff-modal) {
        align-items: flex-start;
        padding: 10px;
    }

    :is(#adventure-interaction-modal, #buff-modal) .modal-content {
        width: 100%;
        min-height: 0;
        margin-block: auto;
        padding: 26px 20px 22px;
        background-image: linear-gradient(145deg, var(--game-ui-surface), var(--game-ui-surface-2));
    }

    :is(#adventure-interaction-modal, #buff-modal) .modal-content::after {
        inset: 8px;
    }

    #adventure-interaction-options,
    #buff-options {
        grid-template-columns: 1fr;
        max-height: 52dvh;
        overflow-y: auto;
    }

    #adventure-spelling-container {
        flex-direction: column;
    }

    #lobby-screen .leaderboard-card .leaderboard-list {
        max-height: min(430px, 58dvh);
        padding-right: 4px;
        overflow-y: auto;
        overscroll-behavior: contain;
    }
}

/* Lobby layout ownership.
 * The identity entry is a full card now, not the legacy 44px theme icon.
 * Its outer flex item must reserve the same space its visible trigger uses. */
#lobby-screen {
    width: min(1180px, 100%);
    max-width: 100%;
}

#lobby-screen .app-header,
#lobby-screen .app-header > :first-child,
#lobby-screen .header-actions,
#lobby-screen .lobby-layout,
#lobby-screen .room-browser,
#lobby-screen .chat-panel {
    min-width: 0;
}

#lobby-screen .app-header > :first-child {
    flex: 1 1 auto;
}

#lobby-screen .header-actions {
    flex: 0 1 auto;
}

#lobby-screen .identity-menu {
    width: clamp(268px, 22vw, 320px);
    max-width: 100%;
    height: auto;
    flex: 0 1 320px;
}

#lobby-screen .identity-trigger {
    width: 100%;
    min-width: 0;
    max-width: 100%;
}

#lobby-screen .identity-trigger-copy {
    min-width: 0;
}

#lobby-screen .lobby-layout {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
}

#lobby-screen .section-toolbar > .search-box {
    min-width: 0;
}

#lobby-screen .section-toolbar > .button {
    flex: 0 0 auto;
}

@media (max-width: 900px) {
    #lobby-screen .lobby-layout {
        grid-template-columns: 1fr;
    }

    #lobby-screen .chat-panel {
        position: static;
        width: 100%;
        min-height: 320px;
        max-height: none;
    }
}

@media (max-width: 980px) {
    #lobby-screen .identity-menu {
        width: min(286px, 100%);
        flex-basis: 286px;
    }
}

@media (max-width: 560px) {
    #lobby-screen .identity-menu {
        width: 100%;
        flex: 1 1 100%;
    }

    #lobby-screen .identity-trigger-copy {
        max-width: none;
    }

    #lobby-screen .identity-menu-panel {
        right: auto;
        left: 0;
        width: min(270px, calc(100vw - 36px));
    }
}

@media (min-width: 901px) and (max-height: 640px) {
    #lobby-screen {
        padding-block: 18px;
    }

    #lobby-screen .app-header {
        padding-bottom: 16px;
    }

    #lobby-screen .app-header h1 {
        font-size: clamp(24px, 2.4vw, 32px);
    }

    #lobby-screen .lobby-layout {
        padding-top: 16px;
    }

    #lobby-screen .room-list-heading {
        margin-top: 18px;
    }

    #lobby-screen .chat-panel {
        height: clamp(280px, calc(100dvh - 190px), 480px);
        min-height: 0;
        max-height: none;
    }
}

/* Lobby workbench: rankings / rooms / conversation share one bounded view. */
#lobby-screen {
    width: min(1540px, 100%);
}

#lobby-screen .lobby-layout {
    --lobby-workbench-height: clamp(520px, calc(100dvh - 190px), 720px);
    grid-template-columns: minmax(260px, .82fr) minmax(440px, 1.35fr) minmax(290px, .92fr);
    align-items: stretch;
    gap: 18px;
}

#lobby-screen :is(.leaderboard-workbench, .room-browser, .chat-panel) {
    min-width: 0;
    height: var(--lobby-workbench-height);
    min-height: 0;
    border: 1px solid var(--shell-border);
    border-radius: max(8px, var(--shell-radius));
    background:
        linear-gradient(145deg, color-mix(in srgb, var(--shell-accent) 5%, transparent), transparent 42%),
        color-mix(in srgb, var(--shell-surface) 94%, transparent);
    box-shadow: 0 18px 50px color-mix(in srgb, var(--shell-bg) 18%, transparent);
}

#lobby-screen .leaderboard-workbench {
    display: flex;
    flex-direction: column;
    padding: 16px 14px 13px;
    overflow: hidden;
}

#lobby-screen .leaderboard-heading {
    flex: 0 0 auto;
    margin-bottom: 11px;
}

#lobby-screen .leaderboard-heading h2 {
    margin-top: 3px;
    color: var(--shell-text);
    font-size: 18px;
}

#lobby-screen .leaderboard-tabs {
    display: grid;
    flex: 0 0 auto;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 5px;
}

#lobby-screen .leaderboard-tabs button {
    min-width: 0;
    min-height: 30px;
    padding: 0 5px;
    overflow: hidden;
    border: 1px solid var(--shell-border);
    border-radius: max(4px, calc(var(--shell-radius) * .45));
    background: color-mix(in srgb, var(--shell-surface-2) 82%, transparent);
    color: var(--shell-muted);
    cursor: pointer;
    font: 800 10px/1 var(--shell-font);
    text-overflow: ellipsis;
    white-space: nowrap;
}

#lobby-screen .leaderboard-tabs button[aria-selected="true"] {
    border-color: color-mix(in srgb, var(--shell-accent) 72%, var(--shell-border));
    background: color-mix(in srgb, var(--shell-accent) 14%, var(--shell-surface-2));
    color: var(--shell-accent);
    box-shadow: inset 0 -2px var(--shell-accent);
}

#lobby-screen .leaderboard-description {
    min-height: 32px;
    margin: 9px 2px 7px;
    color: var(--shell-muted);
    font-size: 10px;
    line-height: 1.45;
}

#lobby-screen .leaderboard-workbench .leaderboard-list {
    display: grid;
    min-height: 0;
    flex: 1 1 auto;
    align-content: start;
    gap: 7px;
    padding-right: 5px;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--shell-accent) transparent;
}

#lobby-screen .leaderboard-workbench .leaderboard-row[data-social-ready="true"],
#lobby-screen .leaderboard-workbench .leaderboard-row {
    display: grid;
    min-height: 58px;
    grid-template-columns: 30px minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    gap: 2px 7px;
    padding: 8px 9px;
}

#lobby-screen .leaderboard-workbench .leaderboard-row .rank-badge {
    grid-column: 1;
    grid-row: 1 / span 2;
}

#lobby-screen .leaderboard-workbench .leaderboard-row .social-avatar,
#lobby-screen .leaderboard-workbench .leaderboard-row .leaderboard-scope-badge {
    display: none;
}

#lobby-screen .leaderboard-workbench .leaderboard-row > strong {
    grid-column: 2;
    grid-row: 1;
    overflow: hidden;
}

#lobby-screen .leaderboard-workbench .leaderboard-row > strong > .social-name-copy,
#lobby-screen .leaderboard-workbench .leaderboard-row > strong > .social-cosmetic-title {
    width: auto;
    max-width: 100%;
}

#lobby-screen .leaderboard-workbench .leaderboard-row .social-vocabulary-chip {
    grid-column: 3;
    grid-row: 1;
    width: 84px;
    min-width: 84px;
}

#lobby-screen .leaderboard-workbench .leaderboard-row > .leaderboard-metric {
    grid-column: 2 / 4;
    grid-row: 2;
    max-width: 100%;
    overflow: hidden;
    color: var(--shell-accent-2);
    font-size: 10px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#lobby-screen .leaderboard-workbench .leaderboard-row.is-room-entry {
    cursor: help;
    outline: none;
}

#lobby-screen .leaderboard-workbench .leaderboard-row.is-room-entry:focus-visible {
    border-color: var(--shell-accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--shell-accent) 22%, transparent);
}

#lobby-screen .leaderboard-entry-detail {
    display: none;
    grid-column: 1 / -1;
    grid-row: 3;
    gap: 5px;
    margin-top: 7px;
    padding: 9px 10px;
    border-top: 1px solid color-mix(in srgb, var(--shell-accent) 28%, var(--shell-border));
    background: color-mix(in srgb, var(--shell-bg) 18%, transparent);
    color: var(--shell-text);
}

#lobby-screen .leaderboard-row.is-room-entry:is(:hover, :focus-visible, .is-detail-open) .leaderboard-entry-detail {
    display: grid;
}

#lobby-screen .leaderboard-entry-detail small {
    color: var(--shell-accent);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: .1em;
}

#lobby-screen .leaderboard-entry-detail p {
    margin: 0;
    color: var(--shell-muted);
    font-size: 10px;
    line-height: 1.45;
}

#lobby-screen .leaderboard-entry-detail p > span {
    display: inline-block;
    min-width: 34px;
    margin-right: 7px;
    color: var(--shell-text);
    font-weight: 800;
}

#lobby-screen .room-browser {
    display: flex;
    flex-direction: column;
    padding: 16px;
    overflow: hidden;
}

#lobby-screen .room-list-heading {
    flex: 0 0 auto;
    margin: 16px 0 9px;
}

#lobby-screen .room-list-viewport {
    min-height: 0;
    flex: 1 1 auto;
    padding-right: 5px;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--shell-accent) transparent;
}

#lobby-screen .room-card {
    padding: 13px 14px;
}

#lobby-screen .room-card p {
    margin: 7px 0 10px;
}

#lobby-screen .room-pagination {
    display: grid;
    min-height: 37px;
    flex: 0 0 auto;
    grid-template-columns: 1fr auto 1fr;
    align-items: end;
    gap: 8px;
    padding-top: 9px;
    border-top: 1px solid color-mix(in srgb, var(--shell-border) 68%, transparent);
    color: var(--shell-muted);
    font-size: 10px;
}

#lobby-screen .room-pagination button:first-child { justify-self: start; }
#lobby-screen .room-pagination button:last-child { justify-self: end; }
#lobby-screen .room-pagination button:disabled { opacity: .35; cursor: default; }

#lobby-screen .chat-panel {
    position: static;
    padding: 16px;
    overflow: hidden;
    border-left: 1px solid var(--shell-border);
}

#lobby-screen .chat-panel .chat-messages {
    min-height: 0;
    flex: 1 1 auto;
    overflow-y: auto;
    overscroll-behavior: contain;
}

@media (max-width: 1120px) and (min-width: 901px) {
    #lobby-screen .lobby-layout {
        grid-template-columns: minmax(235px, .78fr) minmax(390px, 1.25fr) minmax(265px, .88fr);
        gap: 12px;
    }

    #lobby-screen :is(.leaderboard-workbench, .room-browser, .chat-panel) { padding: 12px; }
}

@media (max-width: 900px) {
    #lobby-screen .lobby-layout {
        --lobby-workbench-height: auto;
        grid-template-columns: 1fr;
    }

    #lobby-screen .room-browser { order: 1; height: auto; min-height: 480px; }
    #lobby-screen .leaderboard-workbench { order: 2; height: min(620px, 72dvh); }
    #lobby-screen .chat-panel { order: 3; height: min(620px, 72dvh); min-height: 420px; }
    #lobby-screen .room-list-viewport { max-height: 520px; }
}

@media (max-width: 560px) {
    #lobby-screen :is(.leaderboard-workbench, .room-browser, .chat-panel) { padding: 11px; }
    #lobby-screen .leaderboard-tabs { grid-template-columns: repeat(4, minmax(58px, 1fr)); overflow-x: auto; }
    #lobby-screen .room-browser { min-height: 430px; }
    #lobby-screen .room-meta { gap: 7px 10px; }
}

@media (min-width: 901px) and (max-height: 640px) {
    #lobby-screen .lobby-layout { --lobby-workbench-height: calc(100dvh - 190px); }
    #lobby-screen :is(.leaderboard-workbench, .room-browser, .chat-panel) { height: var(--lobby-workbench-height); }
}

/* Persistent in-game communication rail.
 * Map and chat own separate layout columns: live communication never covers
 * the maze and never collapses into a floating overlay. */
body.game-active #game-workspace {
    display: grid;
    min-width: 0;
    min-height: 0;
    flex: 1 1 auto;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    overflow: hidden;
}

body.game-active #game-workspace > #canvas-container {
    width: auto;
    min-width: 0;
    height: 100%;
    min-height: 0;
}

body.game-active #game-workspace > .game-chat-panel {
    position: relative;
    inset: auto;
    z-index: 50;
    width: clamp(290px, 24vw, 340px);
    height: 100% !important;
    min-height: 0 !important;
    padding: 14px;
    overflow: hidden;
    border-color: var(--game-ui-border);
    border-radius: var(--game-ui-radius);
    background-color: color-mix(in srgb, var(--game-ui-surface) 96%, transparent);
    box-shadow: inset 3px 0 color-mix(in srgb, var(--game-ui-accent) 42%, transparent), 0 12px 34px rgba(0, 0, 0, .32);
    transition: none;
}

body.game-active #game-workspace > .game-chat-panel[hidden] {
    display: none;
}

body.game-active #game-workspace .game-chat-panel .chat-heading {
    padding-bottom: 10px;
    border-bottom: 1px solid color-mix(in srgb, var(--game-ui-border) 72%, transparent);
}

body.game-active #game-workspace .game-chat-panel .game-chat-content {
    min-height: 0;
    overflow: hidden;
}

body.game-active #game-workspace .game-chat-panel .chat-messages {
    height: 0;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
}

/* Chat height ownership.
 * Headers and composers keep their natural height. The message viewport alone
 * absorbs resize pressure and scrolls; individual identity cards must never be
 * flattened into unreadable strips by the column flex algorithm. */
:is(.chat-panel, .game-chat-panel) > .chat-heading,
.room-chat-panel > .room-chat-intro,
.game-chat-panel > .live-voice-controls,
:is(.chat-panel, .game-chat-panel) > .chat-form,
.game-chat-content > .chat-form {
    flex: 0 0 auto;
}

:is(.chat-panel, .game-chat-panel) .chat-messages {
    min-height: 0;
    flex: 1 1 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

.chat-messages > .chat-message {
    min-height: max-content;
    flex: 0 0 auto;
}

:is(.chat-panel, .game-chat-panel) .chat-form {
    min-width: 0;
    max-width: 100%;
}

:is(.chat-panel, .game-chat-panel) .speech-compose-status:not([hidden]) {
    display: block;
    min-width: 0;
    overflow-wrap: anywhere;
}

@media (max-width: 900px) {
    body.game-active #game-workspace {
        gap: 7px;
    }

    body.game-active #game-workspace > .game-chat-panel {
        width: clamp(250px, 31vw, 290px);
        padding: 11px;
    }
}

@media (max-width: 620px) {
    body.game-active #game-workspace {
        grid-template-columns: minmax(0, 1fr) minmax(168px, 42vw);
        gap: 5px;
    }

    body.game-active #game-workspace > .game-chat-panel {
        width: auto;
        padding: 8px;
    }

    body.game-active #game-workspace .game-chat-panel .chat-heading {
        padding-bottom: 7px;
    }

    body.game-active #game-workspace .game-chat-panel .eyebrow {
        display: none;
    }

    body.game-active #game-workspace .game-chat-panel h2 {
        font-size: 14px;
    }

    body.game-active #game-workspace .game-chat-panel .chat-compose-row {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    body.game-active #game-workspace .game-chat-panel .chat-compose-row > input {
        grid-column: 1 / -1;
    }

    body.game-active #game-workspace .game-chat-panel .chat-compose-row > button,
    body.game-active #game-workspace .game-chat-panel .chat-form .voice-record-button {
        width: auto;
        min-width: 0;
        padding-inline: 3px;
    }
}

/* Product-owned form feedback.
 * Browser validation and credential/history popovers must never become part of
 * the game surface, so secret masking and error presentation live in our shell. */
.app-secret-input {
    -webkit-text-security: disc;
    text-security: disc;
    caret-color: var(--shell-accent);
    letter-spacing: .16em;
}

.app-secret-input::placeholder {
    letter-spacing: normal;
}

:is(.auth-form, .room-settings-form, .inline-settings-form, .admin-config-grid, .admin-inline-form) :is(input, textarea)[aria-invalid="true"] {
    border-color: color-mix(in srgb, #ff6b6b 76%, var(--shell-border));
    box-shadow: 0 0 0 3px color-mix(in srgb, #ff6b6b 18%, transparent);
}

.form-error:empty {
    display: none;
}

.form-error:not(:empty) {
    display: grid;
    min-height: 44px;
    margin: 2px 0;
    padding: 10px 12px 10px 43px;
    position: relative;
    align-items: center;
    border: 1px solid color-mix(in srgb, #ff6b6b 54%, var(--shell-border));
    border-radius: max(6px, calc(var(--shell-radius) * .6));
    background:
        linear-gradient(100deg, color-mix(in srgb, #ff6b6b 13%, var(--shell-surface-2)), var(--shell-surface-2));
    color: color-mix(in srgb, #ffb2a8 82%, var(--shell-text));
    box-shadow: inset 3px 0 color-mix(in srgb, #ff6b6b 82%, var(--shell-accent));
    font-size: 13px;
    font-weight: 700;
    line-height: 1.45;
    animation: form-error-arrive 180ms ease-out;
}

.form-error:not(:empty)::before {
    content: "!";
    display: grid;
    width: 22px;
    height: 22px;
    position: absolute;
    left: 12px;
    place-items: center;
    border: 1px solid color-mix(in srgb, #ffb2a8 62%, transparent);
    border-radius: 7px 7px 7px 2px;
    background: color-mix(in srgb, #ff6b6b 22%, transparent);
    color: color-mix(in srgb, #ffd4ce 88%, var(--shell-text));
    font: 900 14px/1 var(--shell-font);
}

@keyframes form-error-arrive {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    .form-error:not(:empty) { animation: none; }
}

/* Product-owned confirmations replace window.confirm without introducing a
 * second visual language or a browser-level focus escape. */
.app-confirm-modal {
    z-index: 2400;
    align-items: center;
    justify-content: center;
    padding: 18px;
    background: color-mix(in srgb, var(--shell-bg) 72%, transparent);
    backdrop-filter: blur(12px);
}

.app-confirm-content {
    width: min(430px, calc(100vw - 36px));
    padding: 24px;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--shell-accent-2) 48%, var(--shell-border));
    border-radius: var(--shell-radius);
    background:
        linear-gradient(145deg, color-mix(in srgb, var(--shell-accent-2) 8%, var(--shell-surface)), var(--shell-surface));
    box-shadow: inset 4px 0 color-mix(in srgb, var(--shell-accent-2) 76%, var(--shell-accent)), 0 28px 80px color-mix(in srgb, #000 58%, transparent);
}

.app-confirm-content h2 {
    margin: 5px 0 0;
    color: var(--shell-text);
    font-size: clamp(22px, 4vw, 28px);
}

.app-confirm-message {
    margin: 14px 0 22px;
    color: var(--shell-muted);
    font-size: 14px;
    line-height: 1.7;
}

.app-confirm-content .form-actions {
    justify-content: flex-end;
}

.app-confirm-content .button-danger {
    border-color: color-mix(in srgb, #ff6b6b 60%, var(--shell-border));
    background: color-mix(in srgb, #ff6b6b 14%, var(--shell-surface-2));
    color: color-mix(in srgb, #ffd0ca 88%, var(--shell-text));
}

.app-confirm-content .button-danger:hover,
.app-confirm-content .button-danger:focus-visible {
    border-color: color-mix(in srgb, #ff8c7f 82%, var(--shell-accent));
    background: color-mix(in srgb, #ff6b6b 24%, var(--shell-surface-2));
}