/* CSS Custom Properties (Variables) for Theming */
:root {
    --color-dark-charcoal: #272F32;
    --color-teal: #2A7989;
    --color-teal-hover: #21606e;
    --color-white: #FFFFFF;
    --color-brick-red: #A22C20;
    --color-light-blue-gray: #DAEAEF;
    --color-light-gray-border: #D1D5DB;
    --color-medium-gray-text: #4B5563;
    --color-focus-ring: #4338CA;
    --score-text-red: #A22C20;
    --score-text-orange: #B95000;
    --score-text-green: #14532D;
    --highlight-background: #cce7ff;
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --border-radius-standard: 6px;
    --spacing-unit: 8px;
    --color-digital-bg: #1E2A3A;
    --color-digital-text-label: #A0B0C0;
    --color-digital-text-value: #60D0E0;
    --color-digital-border: var(--color-teal);
    --color-digital-button-text: var(--color-white);
    --font-digital: 'Consolas', 'Menlo', 'Courier New', Courier, monospace;
    --color-digital-border-rgb: 42, 121, 137;
    --color-digital-text-value-rgb: 96, 208, 224;
    --sidebar-width: 375px;
}

/* --- Global Styles & Resets --- */
body {
    font-family: var(--font-primary);
    color: var(--color-dark-charcoal);
    background-color: var(--color-white);
    margin: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    font-size: 16px;
    line-height: 1.6;
}
* { box-sizing: border-box; }

/* --- Main Layout --- */
#game-container {
    display: flex;
    flex-grow: 1;
    min-height: 0;
}

/* --- Controls Sidebar (Desktop) --- */
#controls {
    width: var(--sidebar-width);
    padding: var(--spacing-unit);
    background-color: var(--color-white);
    border-right: 1px solid var(--color-light-gray-border);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * .5);
    flex-shrink: 0;
    position: relative;
    z-index: 100;
}

/* Hide mobile-only elements on desktop by default */
.mobile-only { display: none; }

#controls h1, #controls h2 {
    color: var(--color-dark-charcoal);
    font-weight: 500;
    margin: 0 0 10px 0;
}
#controls h1 { font-size: 1.5rem; }
#controls h2 { font-size: 1.125em; }

/* --- Digital Display Panel Styling --- */
#digitalDisplayPanel {
    background-color: var(--color-digital-bg);
    border: 2px solid var(--color-digital-border);
    border-radius: var(--border-radius-standard);
    padding: calc(var(--spacing-unit) * 2.5);
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5), 0 0 15px rgba(var(--color-digital-border-rgb), 0.3);
    margin-bottom: calc(var(--spacing-unit) * 2);
}
#digitalDisplayPanel #panelTitle {
    color: var(--color-digital-text-value);
    font-family: var(--font-digital);
    font-size: 1.5em;
    font-weight: bold;
    margin:0; padding:0;
}
#digitalDisplayPanel p {
    font-family: var(--font-digital);
    color: var(--color-digital-text-label);
    margin: var(--spacing-unit) 0 calc(var(--spacing-unit) * 2) 0;
    font-size: 0.95em;
    line-height: 1.4;
}
#digitalDisplayPanel p strong {
    color: var(--color-digital-text-value);
    font-weight: bold;
    display: block;
    margin-top:0;
    font-size: .8rem;
    letter-spacing: 0.5px;
    word-break: break-word;
    min-height: 1.3em;
}
#gameplayInstruction {
    font-family: var(--font-digital);
    color: var(--color-digital-text-label);
    font-size: 0.95em;
    margin-bottom: var(--spacing-unit);
}
.angle-status {
    margin: calc(var(--spacing-unit) * 1.5) 0;
}
.angle-status-label {
    margin: 0 0 6px 0 !important;
    font-size: 0.85em !important;
    color: var(--color-digital-text-label) !important;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.angle-status-track {
    width: 100%;
    height: 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.14);
    overflow: hidden;
    border: 1px solid rgba(var(--color-digital-text-value-rgb), 0.35);
}
.angle-status-fill {
    width: 0%;
    height: 100%;
    background: #22c55e;
    transition: width 0.35s ease;
}
.angle-status-fill.is-warning {
    background: #eab308;
}
.angle-status-fill.is-danger {
    background: #ef4444;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.6);
}
.angle-status-note {
    margin: 6px 0 0 0 !important;
}
.angle-status-note strong {
    font-size: 0.85rem !important;
}
.how-to-play {
    margin: calc(var(--spacing-unit) * 1.5) 0 calc(var(--spacing-unit) * 2) 0;
    padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.2);
    border: 1px solid rgba(var(--color-digital-text-value-rgb), 0.28);
    border-radius: var(--border-radius-standard);
    background-color: rgba(96, 208, 224, 0.07);
}
.how-to-play h3 {
    margin: 0 0 6px 0;
    font-family: var(--font-digital);
    font-size: 0.95em;
    color: var(--color-digital-text-value);
}
.how-to-play ol {
    margin: 0;
    padding-left: 18px;
}
.how-to-play li {
    margin: 0 0 4px 0;
    font-family: var(--font-digital);
    color: var(--color-digital-text-label);
    font-size: 0.84em;
    line-height: 1.35;
}
#gameOverMessage {
    display: none;
    color: var(--color-digital-text-value);
    font-weight: bold;
}
#wrongDirectionMessage {
    display: none;
    color: #FF8A80;
    font-family: var(--font-digital);
    font-weight: bold;
    text-align: center;
    padding: var(--spacing-unit);
    background-color: rgba(255, 138, 128, 0.1);
    border: 1px dashed #FF8A80;
    border-radius: var(--border-radius-standard);
    margin: var(--spacing-unit) 0;
}
#panelButtonArea button, #gameplayControlsDesktop button {
    display: block; width: 100%;
    background-color: var(--color-digital-border);
    color: var(--color-digital-button-text);
    border: 2px solid var(--color-digital-border);
    border-radius: var(--border-radius-standard);
    font-family: var(--font-digital);
    font-weight: bold; font-size: 1.15em;
    padding: calc(var(--spacing-unit) * 1.3) calc(var(--spacing-unit) * 2);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
    text-align: center; margin-top: calc(var(--spacing-unit) * 1.5);
}
#panelButtonArea button:hover, #gameplayControlsDesktop button:hover {
    background-color: var(--color-digital-text-value);
    border-color: var(--color-digital-text-value);
    color: var(--color-digital-bg);
    box-shadow: 0 0 12px rgba(var(--color-digital-text-value-rgb), 0.6);
    transform: translateY(-1px);
}
#panelButtonArea button:disabled, #gameplayControlsDesktop button:disabled {
    background-color: #3A4A5D; border-color: #4A5A6D;
    color: #708090; box-shadow: none;
    cursor: not-allowed; transform: none;
}

/* --- Panel Content Buttons (Options/Scores) --- */
.panel-content button {
    display: block; width: 100%;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 2);
    margin-bottom: var(--spacing-unit);
    border: 1px solid transparent;
    border-radius: var(--border-radius-standard);
    font-size: 1em; font-weight: 500; cursor: pointer;
    transition: all 0.2s ease;
    text-align: center; box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.panel-content button:hover {
    transform: translateY(-2px); box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
#restartGameBtn {
    background-color: var(--color-teal); color: var(--color-white);
    border-color: var(--color-teal);
    margin-bottom: 15px;
}
#restartGameBtn:hover {
    background-color: var(--color-teal-hover);
    border-color: var(--color-teal-hover);
}
#toggleUnitsBtn, #toggleMapSatelliteBtn {
    background-color: var(--color-light-blue-gray); color: var(--color-dark-charcoal);
    border: 1px solid #b0c4de;
}
#toggleUnitsBtn:hover, #toggleMapSatelliteBtn:hover {
    background-color: #c5d5e0; border-color: #9fb3c8;
}

/* --- Country Selection --- */
#countrySelectionOptions {
    margin-top: 0; padding-top: calc(var(--spacing-unit) * 2);
    border-top: 1px solid var(--color-light-gray-border);
}
.panel-content h2 + #countrySelectionOptions { border-top: none; padding-top: 0; }
#countrySelectionOptions p {
    font-size: 0.875em; color: var(--color-medium-gray-text);
    margin: 0 0 var(--spacing-unit) 0;
}
.country-selection-help {
    font-size: 0.8em;
    margin-bottom: 5px;
}
#countryCheckboxesContainer {
    max-height: 200px; overflow-y: auto;
    border: 1px solid var(--color-light-gray-border);
    padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5);
    background-color: var(--color-white);
    border-radius: var(--border-radius-standard);
    margin-bottom: calc(var(--spacing-unit) * 2);
}
#countryCheckboxesContainer label {
    display: flex; align-items: center;
    margin-bottom: var(--spacing-unit);
    font-size: 0.9375em; cursor: pointer;
    padding: calc(var(--spacing-unit) * 0.5) var(--spacing-unit);
    border-radius: 4px;
}
#countryCheckboxesContainer label:hover { background-color: #f0f4f8; }
#countryCheckboxesContainer input[type="checkbox"] {
    margin-right: var(--spacing-unit);
    accent-color: var(--color-teal);
    width: 18px; height: 18px;
}

/* --- Map & Street View --- */
#map-area {
    flex-grow: 1; position: relative;
    background-color: #e0e0e0; z-index: 1;
}
#map, #pano {
    height: 100%; width: 100%;
    position: absolute; top: 0; left: 0;
}
#pano { z-index: 5; }
#streetview-crosshair {
    position: absolute; left: 50%; top: 10%;
    transform: rotate(45deg); width: 100px; height: 100px;
    pointer-events: none; z-index: 10;
    display: none;
}
#streetview-crosshair::before, #streetview-crosshair::after {
    content: ''; position: absolute;
    background-color: var(--color-brick-red);
    opacity: 0.75; box-shadow: 0 0 8px rgba(255,255,255,0.7);
}
#streetview-crosshair::before { left: 50px; top: 50%; width: 100%; height: 1px; transform: translateY(-50%); }
#streetview-crosshair::after { top: 50px; left: 50%; width: 1px; height: 100%; transform: translateX(-50%); }

.celebration-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    z-index: 45;
}
.celebration-overlay.is-active {
    opacity: 1;
    visibility: visible;
}
.celebration-content {
    position: relative;
    text-align: center;
    background: rgba(30, 42, 58, 0.86);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 14px;
    padding: 16px 22px;
    backdrop-filter: blur(2px);
    transform: translateY(10px) scale(0.96);
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    max-width: min(90vw, 460px);
}
.celebration-overlay.is-active .celebration-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}
#celebrationTitle {
    margin: 0;
    font-size: 1.45rem;
    line-height: 1.15;
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}
#celebrationSubtitle {
    margin: 8px 0 0 0;
    color: #e8f7ff;
    font-size: 0.98rem;
}
.celebration-bullseye {
    width: 84px;
    height: 84px;
    margin: 0 auto 10px auto;
    border-radius: 50%;
    background:
        radial-gradient(circle at center, #fff 0 12%, transparent 13% 100%),
        radial-gradient(circle at center, #ef4444 0 25%, transparent 26% 100%),
        radial-gradient(circle at center, #fff 0 41%, transparent 42% 100%),
        radial-gradient(circle at center, #ef4444 0 58%, transparent 59% 100%),
        radial-gradient(circle at center, #fff 0 76%, transparent 77% 100%),
        radial-gradient(circle at center, #ef4444 0 100%);
    display: none;
}
.celebration-overlay.tier-perfect .celebration-bullseye {
    display: block;
    animation: bullseyePulse 0.9s ease-out 0s 2;
}
.celebration-overlay.tier-near #celebrationTitle {
    color: #d9ffec;
}
.celebration-overlay.tier-perfect #celebrationTitle {
    color: #ffe8a3;
}
.celebration-confetti {
    position: absolute;
    inset: 0;
    overflow: hidden;
}
.celebration-confetti-piece {
    position: absolute;
    top: -14px;
    width: 8px;
    height: 14px;
    border-radius: 2px;
    opacity: 0;
    animation: confettiFall 1.2s linear forwards;
    animation-delay: var(--delay, 0s);
    transform: translateX(-50%) rotate(var(--rotate, 0deg));
}

@keyframes confettiFall {
    0% { opacity: 0; transform: translate(-50%, -20px) rotate(0deg); }
    12% { opacity: 1; }
    100% { opacity: 0; transform: translate(calc(-50% + var(--drift, 0px)), 95vh) rotate(520deg); }
}

@keyframes bullseyePulse {
    0% { transform: scale(0.78); filter: drop-shadow(0 0 0 rgba(255, 231, 153, 0)); }
    60% { transform: scale(1.06); filter: drop-shadow(0 0 12px rgba(255, 231, 153, 0.85)); }
    100% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(255, 231, 153, 0)); }
}

@media (prefers-reduced-motion: reduce) {
    .celebration-content,
    .celebration-confetti-piece,
    .celebration-overlay.tier-perfect .celebration-bullseye {
        animation: none !important;
        transition: none !important;
    }
}

/* --- Score History Panel --- */
#score-history {
    position: static; padding: 0; background-color: transparent;
    border-top: none; box-shadow: none; transform: none; width: auto;
}
#score-history h2 {
    margin-top: 0; margin-bottom: calc(var(--spacing-unit) * 1.5);
    font-size: 1.25em; color: var(--color-dark-charcoal); font-weight: 500;
}
.table-container { width: 100%; max-height: 75vh; overflow-y: auto; }
#scoresTable { width: 100%; border-collapse: collapse; font-size: 0.875em; }
#scoresTable th, #scoresTable td { padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5); text-align: left; border-bottom: 1px solid #b8cdda; }
#scoresTable th { background-color: #c5d5e0; color: var(--color-dark-charcoal); font-weight: 600; position: sticky; top: 0; z-index: 2; }
#scoresTable tbody tr:hover { background-color: #eef2f7; }
#scoresTable td:nth-child(1), #scoresTable td:nth-child(2), #scoresTable td:nth-child(3), #scoresTable td:nth-child(4) { white-space: nowrap; text-align: center; }
#scoresTable th:nth-child(1), #scoresTable th:nth-child(2), #scoresTable th:nth-child(3), #scoresTable th:nth-child(4) { text-align: center; }
.best-score-row { background-color: var(--highlight-background) !important; font-weight: bold; }
.no-scores-cell { text-align: center; }

#resultsContentDesktop,
#resultsContentMobile,
#nextGameBtn,
#retrySetupBtn,
#toggleMapViewBtn,
#mobile-results-bar {
    display: none;
}

/* Map legend */
#map-legend-panel {
    padding:20px;
}

#map-legend-panel ul {
    list-style: none;
    padding: 0;
}

#map-legend-panel li.aim-angle::after,
#map-legend-panel li.correct-angle::after,
#map-legend-panel li.proximity::after {
    content: '';
    display: inline-block;
    width: 50px;
    height: 5px;
}

#map-legend-panel li.aim-angle::after {
    background-color: blue;
}

#map-legend-panel li.correct-angle::after {
    background: repeating-linear-gradient(
        to right,
        red 0px,
        red 5px,
        transparent 5px,
        transparent 10px
    );
}

#map-legend-panel li.proximity::after {
    background-color: yellow;
    box-shadow: 0 0 3px 3px rgba(0,0,0,0.15);
}
/* --- Modal Styles --- */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-content {
    background-color: var(--color-white); color: var(--color-dark-charcoal);
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 3);
    border: 1px solid var(--color-light-gray-border);
    border-radius: var(--border-radius-standard);
    width: 80%; max-width: 500px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    text-align: center; position: relative;
}
.modal-content h2 { color: var(--color-teal); margin: 0 0 calc(var(--spacing-unit) * 2) 0; }
.modal-content p { font-size: 1.1em; margin-bottom: calc(var(--spacing-unit) * 1.5); }
.modal-content p strong { font-weight: 600; color: var(--color-brick-red); }
.modal-content button {
    background-color: var(--color-teal); color: var(--color-white);
    border: 1px solid var(--color-teal);
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    font-size: 1.1em; font-weight: 500;
    border-radius: var(--border-radius-standard); cursor: pointer;
    transition: background-color 0.2s ease; 
    margin-top: var(--spacing-unit);
}
.modal-content button:hover { background-color: var(--color-teal-hover); }
.modal-close-icon {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    border: none;
    background: transparent;
    color: #888;
    font-size: 34px;
    font-weight: bold;
    line-height: 1;
    cursor: pointer;
    border-radius: 999px;
}
.modal-close-icon:hover {
    background: rgba(0, 0, 0, 0.08);
    color: #555;
}

/* --- New Game/Panel Trigger Button Styling --- */
.new-game-button, .panel-toggle-btn {
    width: 100%; padding: calc(var(--spacing-unit) * 1.2);
    border-radius: var(--border-radius-standard);
    font-size: 0.95em; font-weight: 500; cursor: pointer;
    transition: all 0.2s ease-in-out;
}
.panel-toggle-btn {
    border: 1px solid #b0c4de; background-color: var(--color-light-blue-gray);
    color: var(--color-dark-charcoal);
}
.panel-toggle-btn:hover { background-color: #c5d5e0; }
#panel-toggles { display: flex; gap: var(--spacing-unit); margin-bottom: var(--spacing-unit); }
.new-game-button {
    background-color: var(--color-brick-red); color: var(--color-white);
    border: 1px solid transparent; font-size: 1.15em; font-weight: 600;
}
.new-game-button:hover { background-color: #8B2318; transform: translateY(-2px); }

/* --- SLIDE-OUT PANEL SYSTEM (Desktop) --- */
.slide-panel {
    position: fixed; top: 0; left: var(--sidebar-width); bottom: 0;
    width: auto; max-width: 90vw; background-color: var(--color-white);
    z-index: 90; box-shadow: 4px 0 15px rgba(0,0,0,0.2);
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex; flex-direction: column;
}
.slide-panel.is-open { transform: translateX(0); }
.slide-panel .panel-content { padding: calc(var(--spacing-unit) * 2); overflow-y: auto; flex-grow: 1; }
.panel-close-btn {
    position: absolute; top: 8px; right: 8px; width: 36px; height: 36px;
    border: none; background: transparent; font-size: 28px;
    font-weight: bold; color: #aaa; cursor: pointer; line-height: 1;
    z-index: 20;
    pointer-events: auto;
}

/* =================================== */
/* --- MOBILE STYLES (Breakpoint) --- */
/* =================================== */
@media (max-width: 800px) {
    html {
        height:100%;
    }
    body { height: 100%; overflow: hidden; }
    .desktop-only { display: none !important; }
    .mobile-only { display: block !important; }
    #mobile-menu[hidden] { display: none !important; }

    #game-container { flex-direction: column; height: 100%; }
    
    #map-area { flex: 1; min-height: 0; order: 1; }
    #controls { order: 2; }

    /* Bottom Bar Styling */
    #controls {
        flex-direction: column;
        width: 100%;
        height: auto;
        padding: var(--spacing-unit);
        border-right: none;
        border-top: 1px solid var(--color-digital-border);
        overflow: visible;
        flex-shrink: 0;
        z-index: 200;
        background-color: var(--color-digital-bg);
    }

    #mobile-bottom-bar {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: var(--spacing-unit);
    }
    
    .mobile-bar-content {
        flex: 0 1 auto;
        min-width: 0;
    }

    .mobile-angle-status-mini {
        flex: 1 1 auto;
        min-width: 80px;
        display: flex;
        align-items: center;
        padding: 10px 0;
        margin-left: 4px;
    }

    .angle-status-track-mini {
        width: 100%;
        height: 8px;
        margin: 0;
        border-color: rgba(var(--color-digital-text-value-rgb), 0.55);
        background: rgba(255,255,255,0.2);
    }
    
    #hamburger-btn {
        display: flex; flex-direction: column;
        justify-content: space-around;
        width: 40px; height: 40px;
        background: transparent; border: none;
        cursor: pointer; padding: 0; z-index: 201;
        flex-shrink: 0;
        margin-left: 0;
    }
    .hamburger-icon span {
        width: 30px; height: 3px;
        background-color: var(--color-white);
        border-radius: 2px;
        display: block; margin: 3px auto;
    }

    #mobile-gameplay-bar {
        display: flex;
        align-items: stretch;
        justify-content: space-between;
        flex-direction: column;
        gap:10px;
        margin-bottom:10px;
    }
    #controls.results-visible #mobile-gameplay-bar { display: none; }
    
    .location-display { 
        font-size: 1.125rem; 
        line-height: 1.3;
        font-family: var(--font-digital);
        white-space: normal;
    }
    .location-display p { margin: 0; color: var(--color-digital-text-label); }
    .location-display strong { 
        color: var(--color-digital-text-value); 
        display: block;
        white-space: normal;
        word-break: break-word;
    }
    #gameplayControlsMobile {
        width: 100%;
    }

    #gameplayControlsMobile button {
        width: 100%;
        display: block;
        padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
        font-size: 1.1em;
        background-color: var(--color-teal);
        color: var(--color-white); border: none;
        border-radius: var(--border-radius-standard);
        cursor: pointer;
        flex-shrink: 0;
        margin-left: 0;
    }
    
    #mobile-results-bar {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: var(--spacing-unit);
    }
    .mobile-results-details {
        font-family: var(--font-digital);
        font-size: 1.125rem;
        color: var(--color-digital-text-label);
        display: flex;
        flex-wrap: wrap;
        gap: 4px 16px;
    }
    .mobile-results-details p { margin: 0; }
    .mobile-results-details strong { color: var(--color-digital-text-value); }
    #nextGameBtnMobile {
        padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
        font-size: 1.1em;
        background-color: var(--color-teal);
        color: var(--color-white); border: none;
        border-radius: var(--border-radius-standard);
        cursor: pointer;
    }
    
    /* Mobile Menu Overlay */
    #mobile-menu {
        position: fixed; top: 0; left: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        background-color: var(--color-white);
        z-index: 800;
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.3s ease-in-out, opacity 0.25s ease-in-out;
        display: flex; flex-direction: column;
        overflow-y: auto;
        overflow-x: hidden;
        min-height: 0;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        will-change: transform, opacity;
    }
    #mobile-menu.is-open {
        transform: translateY(0);
        opacity: 1;
    }
    .mobile-menu-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
        border-bottom: 1px solid var(--color-light-gray-border);
        flex-shrink: 0;
    }
    .mobile-menu-header h2 { margin: 0; }
    #mobile-menu-close-btn {
        font-size: 2.5em; background: none;
        border: none; color: var(--color-medium-gray-text);
        line-height: 1; cursor: pointer; padding: 0;
    }
    .mobile-menu-content {
        padding: calc(var(--spacing-unit) * 2);
        display: block;
    }
    .mobile-menu-actions {
        margin-top: calc(var(--spacing-unit) * 3);
        display: grid;
        gap: calc(var(--spacing-unit) * 1.25);
        padding-bottom: calc(var(--spacing-unit) * 3 + env(safe-area-inset-bottom));
    }
    .mobile-menu-actions button {
        text-align: left; padding: calc(var(--spacing-unit) * 2);
        font-size: 1.1em;
    }
    #startNewGameSeriesBtnMobile { text-align: center; }
    .digital-look {
        background-color: var(--color-digital-bg);
        border-radius: var(--border-radius-standard);
        padding: calc(var(--spacing-unit) * 2);
        font-family: var(--font-digital);
    }
    .digital-look h3 { color: var(--color-digital-text-value); margin: 0 0 10px 0; }
    .digital-look p { color: var(--color-digital-text-label); margin: 5px 0; }
    .digital-look strong { color: var(--color-digital-text-value); }
    .mobile-how-to-play {
        margin-top: var(--spacing-unit);
    }
    .mobile-how-to-play li {
        font-size: 0.92em;
    }

    .table-container {
        max-height: none;
        overflow: visible;
    }

    #scoresTable {
        border-collapse: separate;
        border-spacing: 0;
    }

    #scoresTable thead {
        display: none;
    }

    #scoresTable,
    #scoresTable tbody,
    #scoresTable tr,
    #scoresTable td {
        display: block;
        width: 100%;
    }

    #scoresTable tbody tr {
        margin-bottom: calc(var(--spacing-unit) * 1.5);
        border: 1px solid var(--color-light-gray-border);
        border-radius: var(--border-radius-standard);
        background: var(--color-white);
        overflow: hidden;
    }

    #scoresTable td {
        position: relative;
        padding: calc(var(--spacing-unit) * 1.1) calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 1.1) 45%;
        border-bottom: 1px solid #e5e7eb;
        text-align: left !important;
        white-space: normal !important;
        word-break: break-word;
        min-height: 36px;
    }

    #scoresTable td:last-child {
        border-bottom: none;
    }

    #scoresTable td::before {
        content: attr(data-label);
        position: absolute;
        left: calc(var(--spacing-unit) * 1.5);
        top: 50%;
        transform: translateY(-50%);
        width: calc(45% - (var(--spacing-unit) * 2));
        font-weight: 600;
        color: var(--color-medium-gray-text);
        text-align: left;
        white-space: normal;
    }

    #scoresTable .no-scores-cell {
        padding: calc(var(--spacing-unit) * 2);
        text-align: center !important;
    }

    #scoresTable .no-scores-cell::before {
        content: none;
    }

    /* Slide Panels on Mobile */
    .slide-panel {
        left: 0; width: 100vw; max-width: 100%;
        z-index: 900;
        height: 100dvh;
    }
    .slide-panel .panel-content {
        padding-top: calc(var(--spacing-unit) * 6);
        padding-bottom: calc(var(--spacing-unit) * 3);
        overflow-y: auto;
        min-height: 0;
        -webkit-overflow-scrolling: touch;
    }
    .slide-panel .panel-close-btn {
        top: 10px;
        right: 10px;
        width: 42px;
        height: 42px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.95);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
        color: #666;
    }
}