/* Custom Design Tokens & variables */
:root {
    --bg-dark: #07090e;
    --card-bg: rgba(15, 22, 38, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --neon-blue: #00d2ff;
    --neon-blue-glow: rgba(0, 210, 255, 0.35);
    --neon-pink: #ff007f;
    --neon-pink-glow: rgba(255, 0, 127, 0.35);
    --neon-gold: #ffd700;
    --neon-gold-glow: rgba(255, 215, 0, 0.25);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* Global Styles */
html, body {
    height: 100%;
    margin: 0;
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
}

.bg-dots {
    background-image: 
        radial-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 0),
        radial-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 0);
    background-size: 24px 24px;
    background-position: 0 0, 12px 12px;
    background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
}

/* Glassmorphism CSS */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 12px 35px 0 rgba(0, 0, 0, 0.5);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-navbar {
    background: rgba(7, 9, 14, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.glass-footer {
    background: rgba(7, 9, 14, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.brand-glow {
    background: linear-gradient(135deg, #00d2ff 0%, #ff007f 100%);
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.35);
}

.hover-pill {
    transition: all 0.2s ease;
}
.hover-pill:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff !important;
}

/* Chess Card styling */
.chess-card {
    background: rgba(13, 19, 32, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    box-shadow: 0 15px 45px rgba(0,0,0,0.6);
}

/* Coordinates & Board Grid */
.board-outer-container {
    position: relative;
    width: 100%;
    max-width: 540px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

.board-inner {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
    border: 4px solid rgba(255, 255, 255, 0.05);
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    width: 100%;
    height: 100%;
}

/* Coordinate Label Tracks */
.coordinates {
    display: flex;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-heading);
    user-select: none;
}

.coordinates-x {
    height: 24px;
    width: 100%;
    justify-content: space-around;
    align-items: center;
    padding: 0 2px;
}

.coordinates-x span {
    flex-grow: 1;
    text-align: center;
}

.coordinates-y {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: -20px;
    width: 16px;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
}

.coordinates-y span {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 12.5%;
}

/* Shift spacing when board flipped (handled by JS coordinates rewrite) */

/* Chess Square definition */
.square {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.15s ease;
}

/* SVGs pieces */
.piece-svg {
    width: 80%;
    height: 80%;
    z-index: 5;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.4));
}

.square:hover .piece-svg {
    transform: scale(1.08) translateY(-2px);
}

/* Valid move markers */
.valid-dot {
    position: absolute;
    width: 20%;
    height: 20%;
    border-radius: 50%;
    background-color: rgba(0, 210, 255, 0.5);
    box-shadow: 0 0 8px rgba(0, 210, 255, 0.8);
    z-index: 10;
    pointer-events: none;
}

.valid-capture-ring {
    position: absolute;
    width: 82%;
    height: 82%;
    border-radius: 50%;
    border: 3.5px solid rgba(255, 0, 127, 0.6);
    box-shadow: inset 0 0 8px rgba(255, 0, 127, 0.4);
    z-index: 10;
    pointer-events: none;
}

/* King check highlight */
.square.check-square {
    background: radial-gradient(circle, rgba(255, 0, 0, 0.5) 0%, rgba(255, 0, 0, 0.15) 70%) !important;
    animation: pulseCheck 1.2s infinite ease-in-out;
}

@keyframes pulseCheck {
    0%, 100% { box-shadow: inset 0 0 15px rgba(255,0,0,0.6); }
    50% { box-shadow: inset 0 0 25px rgba(255,0,0,0.9); }
}

/* Move indicators */
.square.last-move-source {
    box-shadow: inset 0 0 0 3px rgba(0, 210, 255, 0.4);
}
.square.last-move-target {
    box-shadow: inset 0 0 0 3px rgba(0, 210, 255, 0.7);
}

.square.selected-square {
    box-shadow: inset 0 0 0 3px var(--neon-pink);
    background-color: rgba(255, 0, 127, 0.15) !important;
}

/* BOARD THEMES COLOR PALETTES */

/* 1. Midnight Neon Theme */
.board-grid.MidnightNeon .square-light {
    background-color: #242f47;
}
.board-grid.MidnightNeon .square-dark {
    background-color: #111827;
}
.board-grid.MidnightNeon .square.last-move-source {
    background-color: rgba(0, 210, 255, 0.15);
}
.board-grid.MidnightNeon .square.last-move-target {
    background-color: rgba(0, 210, 255, 0.25);
}

/* 2. Woodland Walnut Theme */
.board-grid.Woodland .square-light {
    background-color: #efe3c3;
}
.board-grid.Woodland .square-dark {
    background-color: #5b8048;
}
.board-grid.Woodland .square-light .piece-svg {
    filter: drop-shadow(0 3px 4px rgba(0, 0, 0, 0.3));
}
.board-grid.Woodland .square.last-move-source {
    background-color: rgba(245, 222, 179, 0.4);
}
.board-grid.Woodland .square.last-move-target {
    background-color: rgba(255, 235, 59, 0.35);
    box-shadow: inset 0 0 0 3px #ffd54f;
}

/* 3. Classic Slate Theme */
.board-grid.ClassicSlate .square-light {
    background-color: #ececd7;
}
.board-grid.ClassicSlate .square-dark {
    background-color: #739552;
}
.board-grid.ClassicSlate .square.last-move-source {
    background-color: rgba(255, 255, 255, 0.3);
}
.board-grid.ClassicSlate .square.last-move-target {
    background-color: rgba(205, 220, 57, 0.4);
    box-shadow: inset 0 0 0 3px #d4e157;
}

/* 4. Royal Gold Theme */
.board-grid.RoyalGold .square-light {
    background-color: #f5f0e6;
}
.board-grid.RoyalGold .square-dark {
    background-color: #51185c;
}
.board-grid.RoyalGold .square.last-move-source {
    background-color: rgba(255, 215, 0, 0.15);
}
.board-grid.RoyalGold .square.last-move-target {
    background-color: rgba(255, 215, 0, 0.25);
    box-shadow: inset 0 0 0 3px var(--neon-gold);
}

/* 5. Classic Monochrome Theme (Black & White) */
.board-grid.ClassicMonochrome .square-light {
    background-color: #f1f5f9; /* Slate-100 (Premium Soft Off-White) */
}
.board-grid.ClassicMonochrome .square-dark {
    background-color: #27272a; /* Zinc-800 (Premium Matte Charcoal Black) */
}
.board-grid.ClassicMonochrome .square.last-move-source {
    background-color: rgba(0, 210, 255, 0.18);
}
.board-grid.ClassicMonochrome .square.last-move-target {
    background-color: rgba(0, 210, 255, 0.28);
    box-shadow: inset 0 0 0 3px var(--neon-blue);
}

/* Player Info Row & Captured Pieces */
.player-info-row {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    padding: 10px 14px;
}

.player-color-indicator {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}
.white-indicator {
    background-color: #ffffff;
    box-shadow: 0 0 8px rgba(255,255,255,0.4);
}
.black-indicator {
    background-color: #1a1e29;
    border-color: rgba(255, 255, 255, 0.25);
}

.captured-tray {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    min-height: 24px;
    padding: 4px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
}

.captured-piece-mini {
    width: 18px;
    height: 18px;
    opacity: 0.75;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.5));
}

/* Move Log layout */
.move-log-container {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

.move-log-container::-webkit-scrollbar {
    width: 6px;
}
.move-log-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.move-log-row {
    display: flex;
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 0.88rem;
    font-family: var(--font-body);
}

.move-log-row:nth-child(odd) {
    background: rgba(255, 255, 255, 0.02);
}

.move-log-num {
    width: 40px;
    color: rgba(255, 255, 255, 0.35);
    font-weight: 600;
}

.move-log-white, .move-log-black {
    flex-grow: 1;
    color: #cbd5e1;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.15s ease;
}
.move-log-white:hover, .move-log-black:hover {
    color: var(--neon-blue);
}

/* Audio mute toggles styles */
.btn-glass {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #cbd5e1;
    border-radius: 10px;
    padding: 8px 16px;
    font-weight: 500;
    transition: all 0.2s ease;
}
.btn-glass:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-neon-blue {
    background: linear-gradient(135deg, #00b0ff 0%, #00e5ff 100%);
    border: none;
    color: #07090e;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.25);
    transition: all 0.2s ease;
}
.btn-neon-blue:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.45);
    color: #07090e;
}

.btn-neon-pink {
    background: linear-gradient(135deg, #ff007f 0%, #ff5252 100%);
    border: none;
    color: #fff;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 0, 127, 0.25);
    transition: all 0.2s ease;
}
.btn-neon-pink:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255, 0, 127, 0.45);
    color: #fff;
}

.slider-neon::-webkit-slider-thumb {
    background: var(--neon-pink) !important;
    box-shadow: 0 0 10px var(--neon-pink-glow) !important;
}

.slider-neon::-moz-range-thumb {
    background: var(--neon-pink) !important;
    box-shadow: 0 0 10px var(--neon-pink-glow) !important;
}

/* Modals settings */
.modal-glass {
    background: rgba(7, 9, 14, 0.85);
    backdrop-filter: blur(20px);
}
.modal-glass .modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 25px 60px rgba(0,0,0,0.8);
    border-radius: 20px;
}

.form-control-glass, .form-select-glass {
    background-color: rgba(13, 19, 32, 0.6) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    color: #f1f5f9 !important;
}
.form-control-glass:focus, .form-select-glass:focus {
    border-color: var(--neon-blue) !important;
    box-shadow: 0 0 10px var(--neon-blue-glow) !important;
}

.promo-choice-btn {
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 12px;
}

/* Alerts and notifications */
.win-alert {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.12) 0%, rgba(255, 140, 0, 0.12) 100%);
    border: 1px solid var(--neon-gold);
    box-shadow: 0 0 15px var(--neon-gold-glow);
    color: #fef08a;
    animation: slideDown 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes slideDown {
    from {
        transform: translateY(-15px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .coordinates-y {
        display: none; /* Hide Y numbers on small screens to save space */
    }
    .board-outer-container {
        padding-left: 0;
    }
    .square {
        border-radius: 2px;
    }
    .chess-card {
        padding: 8px !important;
    }
    .coordinates-x {
        font-size: 0.65rem;
    }
}

/* ==========================================================================
   Tic Tac Toe Styles (Vibrant Neon Theme)
   ========================================================================== */

.tictactoe-card {
    background: rgba(13, 19, 32, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.6);
}

.ttt-grid-wrapper {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    aspect-ratio: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ttt-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    width: 100%;
    height: 100%;
    gap: 12px;
}

.ttt-cell {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    aspect-ratio: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 3.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.ttt-cell:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

/* X styles - Glowing Cyan */
.cell-x {
    color: var(--neon-blue);
    text-shadow: 0 0 12px var(--neon-blue-glow), 0 0 25px rgba(0, 210, 255, 0.2);
    border-color: rgba(0, 210, 255, 0.3);
    background: rgba(0, 210, 255, 0.01);
}

/* O styles - Glowing Hot Pink */
.cell-o {
    color: var(--neon-pink);
    text-shadow: 0 0 12px var(--neon-pink-glow), 0 0 25px rgba(255, 0, 127, 0.2);
    border-color: rgba(255, 0, 127, 0.3);
    background: rgba(255, 0, 127, 0.01);
}

/* Cell Win Line highlight */
.ttt-cell.winner-cell-highlight {
    background: linear-gradient(135deg, rgba(0, 210, 255, 0.1) 0%, rgba(255, 0, 127, 0.1) 100%);
    border-color: var(--neon-gold);
    animation: winPulse 1.5s infinite ease-in-out;
}

@keyframes winPulse {
    0%, 100% {
        box-shadow: 0 0 15px rgba(255, 215, 0, 0.4), inset 0 0 10px rgba(255, 215, 0, 0.2);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 25px rgba(255, 215, 0, 0.7), inset 0 0 15px rgba(255, 215, 0, 0.4);
        transform: scale(1.03);
    }
}

/* Score card animations and styling */
.player-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.active-turn-x {
    border-color: var(--neon-blue) !important;
    background: rgba(0, 210, 255, 0.03) !important;
    box-shadow: 0 0 15px var(--neon-blue-glow) !important;
}

.active-turn-o {
    border-color: var(--neon-pink) !important;
    background: rgba(255, 0, 127, 0.03) !important;
    box-shadow: 0 0 15px var(--neon-pink-glow) !important;
}

.draw-alert {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
    color: #f1f5f9;
    animation: slideDown 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.absolute-glow {
    position: absolute;
    top: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(255, 0, 127, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

/* ==========================================================================
   Pac-Man Styles (Retro Yellow Theme)
   ========================================================================== */
:root {
    --neon-yellow: #ffff00;
    --neon-yellow-glow: rgba(255, 255, 0, 0.35);
}

.bg-neon-yellow-glow {
    background-color: var(--neon-yellow-glow) !important;
}

.text-neon-yellow {
    color: var(--neon-yellow) !important;
}

.btn-neon-yellow {
    background: linear-gradient(135deg, #ffff00 0%, #ffea00 100%);
    border: none;
    color: #07090e !important;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 255, 0, 0.25);
    transition: all 0.2s ease;
}
.btn-neon-yellow:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255, 255, 0, 0.45);
    color: #07090e !important;
}

.absolute-glow-yellow {
    position: absolute;
    top: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(255, 255, 0, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.bg-black-20 {
    background: rgba(0, 0, 0, 0.25);
}

/* Remove 300ms double-tap delay on mobile browsers */
.square, .ttt-cell, .dpad-btn, .promo-choice-btn, .btn, select, input {
    touch-action: manipulation;
}

/* Virtual D-pad button stylings */
.dpad-btn {
    border: 2px solid rgba(255, 255, 0, 0.4) !important;
    background-color: rgba(7, 9, 14, 0.6) !important;
    box-shadow: 0 0 10px rgba(255, 255, 0, 0.1) !important;
    transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.dpad-btn:active {
    background-color: rgba(255, 255, 0, 0.25) !important;
    border-color: var(--neon-yellow) !important;
    box-shadow: 0 0 15px var(--neon-yellow-glow) !important;
    transform: scale(0.92);
}

/* Touch Action enhancements for scroll lock inside canvas area */
.canvas-container {
    touch-action: none; /* Prevents viewport scrolling while swiping on the Pac-Man canvas */
}

/* Responsive adjustments for mobile dashboards */
@media (max-width: 576px) {
    .tictactoe-card {
        padding: 12px 6px !important;
    }
    .ttt-cell {
        font-size: 2.5rem !important;
    }
    .glass-card {
        padding: 16px !important;
    }
}