/* Electron Density Guessing Game — game-specific styles */
/* Shared styles (progress, canvas, panel, stats, stars, btn, complete, overlay) in mp-game-common.css */

/* Resolution indicator */
.mp-density-resolution {
    text-align: center;
    padding: 0.5rem;
    margin-bottom: 0.75rem;
    background-color: var(--mp-cream);
    border: 1px solid var(--mp-tan-light);
    font-family: monospace;
}
.mp-density-resolution .res-value {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--mp-maroon);
}
.mp-density-resolution .res-label {
    font-size: 0.75rem;
    color: var(--mp-olive);
    text-transform: uppercase;
}
.mp-density-resolution-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 0.4rem;
    padding: 0 0.25rem;
}
.mp-density-resolution-steps .step {
    width: 16%;
    height: 4px;
    background-color: var(--mp-cream-dark);
    border-radius: 2px;
    transition: background-color 0.3s;
}
.mp-density-resolution-steps .step.active {
    background-color: var(--mp-olive);
}
.mp-density-resolution-steps .step.revealed {
    background-color: #cc9900;
}

/* Amino acid selector grid */
.mp-density-aa-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 3px;
    margin-top: 0.5rem;
}
.mp-density-aa-btn {
    border: 1px solid #cccccc;
    background-color: var(--mp-cream);
    color: var(--mp-text);
    font-size: 0.75rem;
    font-weight: bold;
    font-family: monospace;
    padding: 0.35rem 0;
    cursor: pointer;
    text-align: center;
    transition: all 0.15s;
    line-height: 1.2;
}
.mp-density-aa-btn:hover {
    filter: brightness(0.9);
    transform: scale(1.05);
}
.mp-density-aa-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}
.mp-density-aa-btn .aa-code {
    font-size: 0.85rem;
    display: block;
}
.mp-density-aa-btn .aa-three {
    display: none;
}
.mp-density-aa-btn .aa-name {
    font-size: 0.55rem;
    font-weight: normal;
    font-family: var(--mp-font-ui);
    opacity: 0.8;
    display: block;
}

/* Color coding by property group */
.mp-density-aa-btn.group-nonpolar {
    background-color: #e0e0e0;
    border-color: #aaaaaa;
}
.mp-density-aa-btn.group-aromatic {
    background-color: #e8d5f0;
    border-color: #b388c9;
}
.mp-density-aa-btn.group-polar {
    background-color: #d5f0d5;
    border-color: #88c988;
}
.mp-density-aa-btn.group-charged-pos {
    background-color: #d5e0f0;
    border-color: #88a0c9;
}
.mp-density-aa-btn.group-charged-neg {
    background-color: #f0d5d5;
    border-color: #c98888;
}

/* Correct/wrong feedback on AA button */
.mp-density-aa-btn.correct {
    background-color: #44cc44 !important;
    border-color: #228822 !important;
    color: #ffffff !important;
}
.mp-density-aa-btn.wrong {
    background-color: #cc4444 !important;
    border-color: #882222 !important;
    color: #ffffff !important;
}
.mp-density-aa-btn.answer {
    background-color: #cc9900 !important;
    border-color: #886600 !important;
    color: #ffffff !important;
}

/* Improve resolution button (extends .mp-game-btn) */
.mp-density-btn-improve {
    background-color: #336666;
    color: #ffffff;
    border-color: #336666;
    width: 100%;
    padding: 0.5rem;
    font-size: 0.85rem;
}
.mp-density-btn-improve:hover {
    background-color: #225555;
}

/* Backbone hint button (extends .mp-game-btn) */
.mp-density-btn-hint {
    background-color: #1a8a8a;
    color: #ffffff;
    border-color: #1a8a8a;
    width: 100%;
    padding: 0.5rem;
    font-size: 0.85rem;
}
.mp-density-btn-hint:hover {
    background-color: #147070;
}

/* Leaderboard table */
.mp-density-leaderboard {
    width: 100%;
    font-size: 0.8rem;
    border-collapse: collapse;
    table-layout: fixed;
}
.mp-density-leaderboard th,
.mp-density-leaderboard td {
    padding: 0.25rem 0.3rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.mp-density-leaderboard th {
    background-color: var(--mp-cream);
    border-bottom: 1px solid var(--mp-tan);
    text-align: left;
    font-family: var(--mp-font-ui);
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--mp-olive);
}
.mp-density-leaderboard td {
    border-bottom: 1px dotted var(--mp-cream-dark);
}
/* Column widths: narrow rank, wider score/stars */
.mp-density-leaderboard th:nth-child(1),
.mp-density-leaderboard td:nth-child(1) { width: 15%; }
.mp-density-leaderboard th:nth-child(2),
.mp-density-leaderboard td:nth-child(2) { width: 30%; }
.mp-density-leaderboard th:nth-child(3),
.mp-density-leaderboard td:nth-child(3) { width: 25%; }
.mp-density-leaderboard th:nth-child(4),
.mp-density-leaderboard td:nth-child(4) { width: 30%; }

/* Reveal overlay (shown after each guess) */
.mp-density-reveal {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    color: #ffffff;
    padding: 1rem 2rem;
    text-align: center;
    z-index: 10;
    font-family: var(--mp-font-ui);
    font-size: 0.9rem;
    border: 1px solid var(--mp-olive);
    max-width: 500px;
}
.mp-density-reveal .reveal-result {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}
.mp-density-reveal .reveal-result.correct {
    color: #44cc44;
}
.mp-density-reveal .reveal-result.wrong {
    color: #ff4444;
}
.mp-density-reveal .reveal-result.partial {
    color: #cc9900;
}
.mp-density-reveal .reveal-info {
    font-size: 0.8rem;
    color: #aaaaaa;
    margin-top: 0.5rem;
}

/* Result panels: Hide collapses them to a one-row strip at the top left of the map */
.mp-density-reveal .result-hide,
.mp-game-complete .result-hide,
.mp-density-daily-result .result-hide {
    position: absolute;
    top: 0.25rem;
    right: 0.5rem;
    background: none;
    border: none;
    color: #aaaaaa;
    font-size: 0.75rem;
    padding: 0.25rem;
    cursor: pointer;
}
.mp-density-reveal.collapsed .result-hide,
.mp-game-complete.collapsed .result-hide,
.mp-density-daily-result.collapsed .result-hide {
    display: none;
}

/* Practice score display */
.mp-density-game-score {
    text-align: center;
    font-family: var(--mp-font-ui);
    font-size: 0.85rem;
    color: var(--mp-olive);
    margin-bottom: 0.4rem;
}
.mp-density-game-score .score-value {
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--mp-maroon);
    font-family: monospace;
}

/* Round indicator */
.mp-density-round {
    text-align: center;
    font-family: var(--mp-font-ui);
    font-size: 0.8rem;
    color: var(--mp-olive);
    margin-bottom: 0.5rem;
}
.mp-density-round .round-number {
    font-weight: bold;
    font-size: 1rem;
    color: var(--mp-maroon);
}

/* Point cost badge */
.mp-density-cost {
    font-size: 0.7rem;
    color: #cc6600;
    font-style: italic;
}

/* Difficulty selector */
.mp-density-difficulty-select {
    width: 100%;
    padding: 0.3rem;
    border: 1px solid var(--mp-tan-light);
    font-size: 0.85rem;
    font-family: inherit;
    margin-bottom: 0.5rem;
}

/* === Mode Tabs === */
.mp-density-mode-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--mp-tan);
    margin-bottom: 0;
}
.mp-density-mode-tab {
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--mp-tan);
    border-bottom: none;
    background-color: #f0f0e8;
    color: var(--mp-olive);
    font-family: var(--mp-font-ui);
    font-size: 0.85rem;
    font-weight: bold;
    cursor: pointer;
    margin-right: -1px;
    position: relative;
    top: 2px;
}
.mp-density-mode-tab:hover {
    background-color: var(--mp-cream-dark);
}
.mp-density-mode-tab.active {
    background-color: #ffffff;
    color: var(--mp-maroon);
    border-bottom: 2px solid #ffffff;
}

/* === Guess Indicators === */
.mp-density-guess-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}
.guess-dot {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
    border: 2px solid var(--mp-tan-light);
    background-color: var(--mp-cream);
    color: var(--mp-olive);
}
.guess-dot.guess-unused {
    background-color: var(--mp-cream);
    border-color: var(--mp-tan-light);
}
.guess-dot.guess-improve {
    background-color: #e8f4f8;
    border-color: #336666;
    font-size: 0.8rem;
}
.guess-dot.guess-correct {
    background-color: #44cc44;
    border-color: #228822;
    color: #ffffff;
}
.guess-dot.guess-wrong {
    background-color: #cc4444;
    border-color: #882222;
    color: #ffffff;
}

/* === Daily Result Overlay === */
.mp-density-daily-result {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.92);
    color: #ffffff;
    padding: 2rem 2.5rem;
    text-align: center;
    border: 2px solid #cc9900;
    z-index: 10;
    font-family: var(--mp-font-ui);
    max-width: 400px;
    width: 90%;
    max-height: 92%;
    overflow-y: auto;
}
.mp-density-daily-result h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}
.daily-result-answer {
    font-size: 1rem;
    color: #cccccc;
    margin-bottom: 0.75rem;
}
.daily-result-emoji {
    font-size: 1.5rem;
    letter-spacing: 0.3rem;
    margin-bottom: 1rem;
}

/* Stats grid in daily result overlay */
.daily-stats-grid {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    margin-bottom: 1rem;
    padding: 0.75rem 0;
    border-top: 1px solid #444;
    border-bottom: 1px solid #444;
}
.daily-stat {
    text-align: center;
}
.daily-stat-value {
    font-size: 1.3rem;
    font-weight: bold;
    color: #ffffff;
}
.daily-stat-label {
    font-size: 0.65rem;
    color: #999999;
    text-transform: uppercase;
}

/* Distribution chart */
.daily-distribution {
    margin-bottom: 0.75rem;
}
.dist-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 2px;
}
.dist-label {
    font-size: 0.75rem;
    font-weight: bold;
    width: 1rem;
    text-align: right;
    color: #cccccc;
}
.dist-bar-wrap {
    flex: 1;
}
.dist-bar {
    background-color: #555555;
    color: #ffffff;
    font-size: 0.7rem;
    padding: 2px 6px;
    text-align: right;
    min-width: 1.5rem;
}
.dist-bar-highlight {
    background-color: #44cc44;
}
.dist-bar-loss {
    background-color: #774444;
}
.dist-bar-loss.dist-bar-highlight {
    background-color: #cc4444;
}

/* Solve times and recent games */
.play-times {
    font-size: 0.8rem;
    color: #cccccc;
    margin-bottom: 0.6rem;
}
.play-history {
    margin: 0.5rem 0 0.25rem;
    padding-top: 0.4rem;
    border-top: 1px solid #444;
}
.history-row {
    display: flex;
    gap: 0.6rem;
    padding: 1px 0;
    font-size: 0.75rem;
    color: #cccccc;
}
.history-date {
    width: 3.5rem;
    text-align: left;
}
.history-mark {
    width: 1rem;
}
.history-won .history-mark {
    color: #44cc44;
}
.history-lost .history-mark {
    color: #ff4444;
}
.history-time {
    margin-left: auto;
    font-variant-numeric: tabular-nums;
}

/* Share confirmation */
.share-confirm {
    color: #44cc44;
    font-size: 0.8rem;
    margin-top: 0.3rem;
}

/* Countdown timer */
.daily-countdown {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: #999999;
}

/* Greyed out guessed AA button */
.mp-density-aa-btn.guessed {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
    text-decoration: line-through;
}
.mp-density-aa-btn.guessed:hover {
    filter: none;
    transform: none;
}

/* === Time Attack Life Bar === */
.ta-life-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    z-index: 15;
    background-color: rgba(0, 0, 0, 0.4);
    display: none;
}
.ta-life-bar.active {
    display: block;
}
.ta-life-bar-fill {
    height: 100%;
    width: 100%;
    transition: width 0.1s linear;
    background-color: #44cc44;
}
.ta-life-bar-fill.ta-bar-green {
    background-color: #44cc44;
}
.ta-life-bar-fill.ta-bar-yellow {
    background-color: #cc9900;
}
.ta-life-bar-fill.ta-bar-red {
    background-color: #ff4444;
    animation: ta-bar-pulse 0.8s ease-in-out infinite;
}
@keyframes ta-bar-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Life bar flash animations */
@keyframes ta-bar-flash-correct {
    0% { box-shadow: inset 0 0 10px #44cc44, 0 0 8px #44cc44; }
    100% { box-shadow: none; }
}
@keyframes ta-bar-flash-wrong {
    0% { box-shadow: inset 0 0 10px #ff4444, 0 0 8px #ff4444; }
    100% { box-shadow: none; }
}
.ta-life-bar.ta-bar-flash-correct {
    animation: ta-bar-flash-correct 0.5s ease-out;
}
.ta-life-bar.ta-bar-flash-wrong {
    animation: ta-bar-flash-wrong 0.5s ease-out;
}

/* Time delta popup */
.ta-time-delta {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    font-weight: bold;
    font-family: monospace;
    pointer-events: none;
    z-index: 20;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.8);
    animation: ta-delta-fade 1.0s ease-out forwards;
}
.ta-time-delta.ta-delta-plus {
    color: #44cc44;
}
.ta-time-delta.ta-delta-minus {
    color: #ff4444;
}
@keyframes ta-delta-fade {
    0% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    70% { opacity: 0.8; transform: translate(-50%, -80%) scale(1.1); }
    100% { opacity: 0; transform: translate(-50%, -100%) scale(0.9); }
}

/* Correct-answer flash (shown on wrong/partial guess in time-attack) */
.ta-answer-flash {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.1rem;
    font-weight: bold;
    font-family: var(--mp-font-ui);
    color: #ffffff;
    pointer-events: none;
    z-index: 20;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.9);
    background: rgba(0, 0, 0, 0.6);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    animation: ta-answer-fade 1.0s ease-out forwards;
}
@keyframes ta-answer-fade {
    0% { opacity: 1; transform: translate(-50%, -50%); }
    70% { opacity: 0.9; transform: translate(-50%, -50%); }
    100% { opacity: 0; transform: translate(-50%, -60%); }
}

/* === 70's Mode Toggle Button === */
.mp-density-btn-view-mode {
    position: absolute;
    bottom: 0.75rem;
    left: 0.75rem;
    z-index: 10;
    font-family: monospace;
    font-size: 0.8rem;
    font-weight: bold;
    padding: 0.35rem 0.6rem;
    background-color: rgba(30, 30, 30, 0.7);
    color: #aaaaaa;
    border: 1px solid #555555;
    cursor: pointer;
    transition: all 0.2s;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.mp-density-btn-view-mode:hover {
    background-color: rgba(50, 50, 50, 0.8);
    color: #cccccc;
}
.mp-density-btn-view-mode.active {
    background-color: rgba(60, 45, 20, 0.85);
    color: #F5F0E0;
    border-color: #C8B88A;
}

/* Named so the switch between the HUD and the side column glides (hud_layout.js). */
#aaPanel { view-transition-name: aa-panel; }
#canvasContainer { view-transition-name: density-canvas; }
::view-transition-group(*) { animation-duration: 0.5s; }

/* === Mobile HUD Overlay Layout === */
/* Phones, and any portrait screen (a 13" iPad is 1032px wide upright): canvas with a HUD overlay.
   hud_layout.js sets html.hud-layout from the host page's query (default: Bootstrap's lg breakpoint). */
/* Canvas fills available viewport */
html.hud-layout .mp-game-canvas-wrap {
    min-height: calc(100vh - 80px);
    min-height: calc(100dvh - 80px);
    margin-bottom: 0;
    border: none;
}

/* Game layout row becomes positioning context */
html.hud-layout .game-row {
    position: relative;
}

/* Bootstrap's lg columns would keep the canvas at 75% on a wide portrait screen */
html.hud-layout .game-row > [class*="col-lg-"] {
    flex: 0 0 100%;
    max-width: 100%;
}

/* --- Sidebar → HUD overlay grid --- */
html.hud-layout .game-sidebar {
    position: absolute !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 5;
    pointer-events: none;
    padding: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    flex: 0 0 100% !important;
    display: grid !important;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto 1fr auto;
}

/* Interactive elements inside sidebar need pointer-events */
html.hud-layout .game-sidebar button, html.hud-layout .game-sidebar select, html.hud-layout .game-sidebar input, html.hud-layout .game-sidebar a, html.hud-layout .game-sidebar .mp-density-aa-btn {
    pointer-events: auto;
}

/* Reset panel base styles for mobile */
html.hud-layout .game-sidebar .mp-game-panel {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
}

/* Hide panel headers on mobile */
html.hud-layout .game-sidebar .mp-game-panel h5 {
    display: none;
}

/* Hide non-essential panels on mobile */
html.hud-layout .game-sidebar #practiceStatsPanel, html.hud-layout .game-sidebar #dailyStatsPanel, html.hud-layout .game-sidebar #practiceLeaderboardPanel, html.hud-layout .game-sidebar #taLeaderboardPanel {
    display: none !important;
}

/* --- Top HUD Left: Time Attack score --- */
html.hud-layout .game-sidebar #timeAttackPanel {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    grid-row: 1;
    grid-column: 1;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 0.3rem 0.5rem;
    color: #cccccc;
}

html.hud-layout .game-sidebar #timeAttackPanel .mp-game-stats {
    display: flex;
    gap: 0.75rem;
    margin: 0;
}

html.hud-layout .game-sidebar #timeAttackPanel .mp-game-stats li {
    border: none;
    padding: 0;
    font-size: 0.75rem;
    color: #cccccc;
    gap: 0.2rem;
}

html.hud-layout .game-sidebar #timeAttackPanel .mp-game-stats .stat-value {
    color: #ffffff;
}

html.hud-layout .game-sidebar #timeAttackPanel .mp-density-difficulty-select {
    display: none;
}

/* --- Top HUD Left: Daily guess indicators --- */
html.hud-layout .game-sidebar #dailyGuessPanel {
    display: flex;
    align-items: center;
    grid-row: 1;
    grid-column: 1;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 0.3rem 0.5rem;
}

html.hud-layout .game-sidebar .mp-density-guess-indicators {
    padding: 0;
    gap: 0.3rem;
    justify-content: flex-start;
}

html.hud-layout .game-sidebar .guess-dot {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.7rem;
    border-width: 1.5px;
}

/* --- Top HUD Left: Practice round info --- */
html.hud-layout .game-sidebar #practiceGamePanel {
    display: flex;
    align-items: center;
    grid-row: 1;
    grid-column: 1;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 0.3rem 0.5rem;
    color: #cccccc;
}

html.hud-layout .game-sidebar .mp-density-game-score {
    margin: 0;
    margin-left: 0.75rem;
    padding-left: 0.75rem;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.75rem;
    color: #cccccc;
}

html.hud-layout .game-sidebar .mp-density-game-score .score-value {
    font-size: 0.85rem;
    color: #ffffff;
}

html.hud-layout .game-sidebar .mp-density-round {
    margin-bottom: 0;
    font-size: 0.75rem;
    color: #cccccc;
}

html.hud-layout .game-sidebar .round-number {
    color: #ffffff;
}

html.hud-layout .game-sidebar .mp-density-difficulty-select {
    display: none;
}

/* --- Top HUD Right: Resolution + improve button --- */
html.hud-layout .game-sidebar #resolutionPanel {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    grid-row: 1;
    grid-column: 2;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 0.3rem 0.5rem;
}

html.hud-layout .game-sidebar .mp-density-resolution {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
}

html.hud-layout .game-sidebar .res-label {
    font-size: 0.55rem;
    color: #999999;
    text-transform: uppercase;
}

html.hud-layout .game-sidebar .res-value {
    font-size: 0.85rem;
    color: #ffffff;
}

html.hud-layout .game-sidebar .mp-density-resolution-steps {
    margin-top: 0;
}

html.hud-layout .game-sidebar .mp-density-resolution-steps .step {
    height: 3px;
    width: 12px;
}

/* Compact improve button: labeled "Detail ▲" */
html.hud-layout .game-sidebar .mp-density-btn-improve {
    font-size: 0;
    line-height: 0;
    width: auto;
    padding: 0.35rem 0.6rem;
    margin: 0 !important;
}

html.hud-layout .game-sidebar .mp-density-btn-improve::before {
    content: 'Detail \25B2';
    font-size: 0.75rem;
    line-height: 1;
    font-weight: bold;
}

html.hud-layout .game-sidebar .mp-density-cost {
    display: none;
}

/* Compact hint button: labeled "Backbone" */
html.hud-layout .game-sidebar .mp-density-btn-hint {
    font-size: 0;
    line-height: 0;
    width: auto;
    padding: 0.35rem 0.6rem;
    margin: 0 !important;
}

html.hud-layout .game-sidebar .mp-density-btn-hint::before {
    content: 'Backbone';
    font-size: 0.75rem;
    line-height: 1;
    font-weight: bold;
}

/* --- Bottom HUD: AA Grid --- */
html.hud-layout .game-sidebar #aaPanel {
    display: block;
    grid-row: 3;
    grid-column: 1 / -1;
    background: rgba(20, 20, 30, 0.92);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 0.4rem;
    padding-bottom: calc(0.4rem + env(safe-area-inset-bottom));
    pointer-events: auto;
}

/* Tablets: keep the bottom controls phone-sized and centred */
html.hud-layout .game-sidebar #aaPanel > * {
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

html.hud-layout .game-sidebar .mp-density-aa-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 3px;
    margin-top: 0;
}

html.hud-layout .game-sidebar .mp-density-aa-btn {
    padding: 0.3rem 0.1rem;
    font-size: 0.8rem;
}

/* Mobile: show three-letter code, hide one-letter and full name */
html.hud-layout .game-sidebar .mp-density-aa-btn .aa-code {
    display: none;
}

html.hud-layout .game-sidebar .mp-density-aa-btn .aa-three {
    display: block;
    font-size: 0.8rem;
    font-weight: bold;
    font-family: monospace;
}

html.hud-layout .game-sidebar .mp-density-aa-btn .aa-name {
    display: none;
}

/* 70's button position handled dynamically in onResize() */

/* Life bar: slightly thinner on mobile */
html.hud-layout .ta-life-bar {
    height: 4px;
}

/* --- Overlay adjustments for mobile --- */
html.hud-layout .mp-game-overlay, html.hud-layout .mp-game-complete, html.hud-layout .mp-density-daily-result {
    max-width: 85vw;
    padding: 1.5rem;
}

/* Reveal overlay: center instead of bottom (avoid AA grid overlap) */
html.hud-layout .mp-density-reveal {
    bottom: auto;
    top: 50%;
    transform: translate(-50%, -50%);
    max-width: 85vw;
    z-index: 15;
}

/* Compact mode tabs */
html.hud-layout .mp-density-mode-tab {
    padding: 0.4rem 0.7rem;
    font-size: 0.72rem;
}

/* Difficulty select in instructions overlay */
html.hud-layout .mp-game-overlay .mp-density-difficulty-select {
    background-color: rgba(255, 255, 255, 0.1);
    color: #cccccc;
    border-color: #666633;
    max-width: 200px;
}

.mp-density-reveal.collapsed > :not(.strip-keep),
.mp-game-complete.collapsed > :not(.strip-keep),
.mp-density-daily-result.collapsed > :not(.strip-keep) {
    display: none;
}
html.hud-layout .mp-density-reveal.collapsed,
html.hud-layout .mp-game-complete.collapsed,
html.hud-layout .mp-density-daily-result.collapsed,
.mp-density-reveal.collapsed,
.mp-game-complete.collapsed,
.mp-density-daily-result.collapsed {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    top: calc(var(--hud-top, 0px) + 0.5rem);
    left: 0.5rem;
    bottom: auto;
    transform: none;
    max-width: calc(100% - 1rem);
    padding: 0.4rem 0.75rem;
    width: auto;
    max-height: none;
}
.mp-density-reveal.collapsed .strip-keep,
.mp-game-complete.collapsed .strip-keep,
.mp-density-daily-result.collapsed .strip-keep {
    margin: 0 !important;
    cursor: pointer;
}