:root {
    --red: linear-gradient(145deg, #ff4b5c, #d63031);
    --green: linear-gradient(145deg, #20bf6b, #10ac84);
    --yellow: linear-gradient(145deg, #f7b731, #f39c12);
    --blue: linear-gradient(145deg, #45aaf2, #2d98da);
    
    --red-glow: 0 0 25px rgba(214, 48, 49, 0.7);
    --green-glow: 0 0 25px rgba(16, 172, 132, 0.7);
    --yellow-glow: 0 0 25px rgba(243, 156, 18, 0.7);
    --blue-glow: 0 0 25px rgba(45, 152, 218, 0.7);

    --bg-main: radial-gradient(circle at center, #1e272e, #0f141a);
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --cell-size: min(6.5vw, 6.5vh, 50px);
    --ease-in-out-expo: cubic-bezier(1, 0, 0, 1);
    --ease-out-back: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-main);
    color: #fff;
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
    perspective: 1000px;
}

/* Premium Overlays */
.overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.6s var(--ease-in-out-expo);
}

.overlay.hidden {
    opacity: 0;
    visibility: hidden;
    transform: scale(1.1) rotateX(10deg);
}

.menu-content {
    background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.02));
    padding: 50px;
    border-radius: 40px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 30px 60px rgba(0,0,0,0.6);
    text-align: center;
    width: 90%;
    max-width: 440px;
}

.menu-content h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 35px;
    background: linear-gradient(to right, #ff4b5c, #f7b731, #20bf6b, #45aaf2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    letter-spacing: 4px;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.3));
}

.menu-btn {
    width: 100%;
    padding: 20px;
    margin: 15px 0;
    border: none;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1.3rem;
    font-weight: 800;
    cursor: pointer;
    transition: 0.4s var(--ease-out-back);
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

.menu-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
}

/* Turn Indicator */
.turn-indicator {
    background: var(--glass);
    padding: 15px 40px;
    border-radius: 50px;
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
}

.turn-indicator .dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    margin-right: 20px;
    transition: 0.6s var(--ease-out-back);
}

/* Board UI */
#board-wrapper {
    position: relative;
    padding: 15px;
    border-radius: 30px;
    background: rgba(0,0,0,0.4);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
    transform: rotateX(5deg);
    transition: transform 0.5s ease;
}

#ludo-board {
    display: grid;
    grid-template-columns: repeat(15, var(--cell-size));
    grid-template-rows: repeat(15, var(--cell-size));
    background: #ffffff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.1);
}

.base {
    grid-column: span 6;
    grid-row: span 6;
    position: relative;
    padding: 12%;
}

.base.red { background: var(--red); grid-area: 1 / 1 / 7 / 7; }
.base.green { background: var(--green); grid-area: 1 / 10 / 7 / 16; }
.base.blue { background: var(--blue); grid-area: 10 / 1 / 16 / 7; }
.base.yellow { background: var(--yellow); grid-area: 10 / 10 / 16 / 16; }

.base-inner {
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.96);
    border-radius: 25px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    padding: 12%;
    gap: 15%;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1), inset 0 0 10px rgba(0,0,0,0.05);
}

.token-slot {
    border-radius: 50%;
    background: #f5f5f5;
    border: 2px dashed #ddd;
    transition: all 0.3s ease;
}

/* Home Triangles */
.home-center {
    grid-area: 7 / 7 / 10 / 10;
    position: relative;
    background: #fff;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.05);
}

.home-triangle {
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
    filter: drop-shadow(0 0 10px rgba(0,0,0,0.1));
}

.home-triangle.red {
    border-width: calc(var(--cell-size) * 1.5) 0 calc(var(--cell-size) * 1.5) calc(var(--cell-size) * 1.5);
    border-color: transparent transparent transparent #ff4b5c;
}
.home-triangle.green {
    border-width: 0 calc(var(--cell-size) * 1.5) calc(var(--cell-size) * 1.5) calc(var(--cell-size) * 1.5);
    border-color: transparent transparent #20bf6b transparent;
}
.home-triangle.yellow {
    border-width: calc(var(--cell-size) * 1.5) calc(var(--cell-size) * 1.5) calc(var(--cell-size) * 1.5) 0;
    border-color: transparent #f7b731 transparent transparent;
}
.home-triangle.blue {
    border-width: calc(var(--cell-size) * 1.5) calc(var(--cell-size) * 1.5) 0 calc(var(--cell-size) * 1.5);
    border-color: #45aaf2 transparent transparent transparent;
}

/* Path Cells */
.cell {
    border: 0.1px solid rgba(0,0,0,0.03);
    transition: background 0.3s ease;
}

.cell.safe {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23dddddd'%3E%3Cpath d='M12 17.27L18.18 21l-1.64-7.03L22 9.24l-7.19-.61L12 2 9.19 8.63 2 9.24l5.46 4.73L5.82 21z'/%3E%3C/svg%3E");
    background-size: 70%;
    background-repeat: no-repeat;
    background-position: center;
}

/* Enhanced Token Styling */
.token {
    position: absolute;
    width: calc(var(--cell-size) * 0.8);
    height: calc(var(--cell-size) * 0.8);
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5), inset 0 0 10px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
}

.token::after {
    content: '';
    width: 50%;
    height: 50%;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    box-shadow: inset 0 0 5px rgba(255, 255, 255, 0.5);
}

/* Restoring Player Colors */
.token.red { background: linear-gradient(145deg, #ff4d4d, #b30000); }
.token.green { background: linear-gradient(145deg, #2ecc71, #1b7e44); }
.token.yellow { background: linear-gradient(145deg, #f1c40f, #9b7e09); }
.token.blue { background: linear-gradient(145deg, #3498db, #1d5a84); }

/* Highlighting Active Tokens */
.token.active {
    animation: premium-pulse 0.8s infinite alternate cubic-bezier(0.45, 0, 0.55, 1);
    z-index: 200;
    border-color: #ffffff;
}

.token.active.red { box-shadow: 0 0 25px #ff4d4d, 0 5px 15px rgba(0, 0, 0, 0.5); }
.token.active.green { box-shadow: 0 0 25px #2ecc71, 0 5px 15px rgba(0, 0, 0, 0.5); }
.token.active.yellow { box-shadow: 0 0 25px #f1c40f, 0 5px 15px rgba(0, 0, 0, 0.5); }
.token.active.blue { box-shadow: 0 0 25px #3498db, 0 5px 15px rgba(0, 0, 0, 0.5); }

@keyframes premium-pulse {
    from { transform: scale(1) translateY(0); filter: brightness(1); }
    to { transform: scale(1.2) translateY(-10px); filter: brightness(1.2); }
}

/* Footer & 3D Dice */
#game-footer {
    margin-top: 30px;
    display: flex;
    align-items: center;
    gap: 50px;
}

.roll-btn {
    padding: 18px 55px;
    border: none;
    border-radius: 30px;
    background: linear-gradient(135deg, #ffffff, #e6e6e6);
    color: #1e272e;
    font-weight: 900;
    font-size: 1.4rem;
    cursor: pointer;
    box-shadow: 0 12px 0 #b2bec3, 0 20px 40px rgba(0,0,0,0.4);
    transition: all 0.15s var(--ease-out-back);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.roll-btn:hover { transform: translateY(-3px); }

.roll-btn:active {
    transform: translateY(8px);
    box-shadow: 0 4px 0 #b2bec3, 0 10px 20px rgba(0,0,0,0.4);
}

.roll-btn:disabled { opacity: 0.5; filter: grayscale(1); cursor: default; transform: none; box-shadow: 0 12px 0 #999; }

#dice-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

#dice-result-badge {
    position: absolute;
    top: -30px;
    right: -30px;
    background: linear-gradient(135deg, #fff, #ddd);
    color: #1e272e;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 900;
    font-size: 1.5rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.4), 0 0 15px rgba(255,255,255,0.5);
    border: 3px solid #1e272e;
    z-index: 500;
    transition: all 0.4s var(--ease-out-back);
    transform-origin: center;
}

#dice-result-badge.hidden {
    transform: scale(0);
    opacity: 0;
}

.face {
    position: absolute;
    width: 100%;
    height: 100%;
    background: #fff;
    border: 2px solid #eee;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: inset 0 0 15px rgba(0,0,0,0.1);
}

.face.front  { transform: rotateY(0deg) translateZ(30px); }
.face.back   { transform: rotateY(180deg) translateZ(30px); }
.face.top    { transform: rotateX(90deg) translateZ(30px); }
.face.bottom { transform: rotateX(-90deg) translateZ(30px); }
.face.left   { transform: rotateY(-90deg) translateZ(30px); }
.face.right  { transform: rotateY(90deg) translateZ(30px); }

/* Face Dots (Mapping to standard dice layout) */
.face::before {
    content: '';
    width: 80%;
    height: 80%;
    background-size: 30% 30%;
    background-repeat: no-repeat;
    display: block;
}

/* 1 Dot (Front) */
.face.front::before {
    background-image: radial-gradient(#333 15%, transparent 20%);
    background-position: 50% 50%;
}
/* 2 Dots (Top) */
.face.top::before {
    background-image: radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%);
    background-position: 10% 10%, 90% 90%;
}
/* 3 Dots (Right) */
.face.right::before {
    background-image: radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%);
    background-position: 10% 10%, 50% 50%, 90% 90%;
}
/* 4 Dots (Left) */
.face.left::before {
    background-image: radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%);
    background-position: 10% 10%, 10% 90%, 90% 10%, 90% 90%;
}
/* 5 Dots (Bottom) */
.face.bottom::before {
    background-image: radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%);
    background-position: 10% 10%, 10% 90%, 90% 10%, 90% 90%, 50% 50%;
}
/* 6 Dots (Back) */
.face.back::before {
    background-image: radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%), radial-gradient(#333 15%, transparent 20%);
    background-position: 10% 10%, 10% 50%, 10% 90%, 90% 10%, 90% 50%, 90% 90%;
}

/* Particle Effects Container */
#particles-container {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 3000;
}

.particle {
    position: absolute;
    border-radius: 50%;
    animation: particle-fade 1s forwards ease-out;
}

@keyframes particle-fade {
    to { transform: translate(var(--tx), var(--ty)) scale(0); opacity: 0; }
}

/* Mobile Adjustments */
@media (max-width: 600px) {
    #game-footer { gap: 25px; }
    .roll-btn { padding: 15px 35px; font-size: 1.2rem; }
    #dice { width: 60px; height: 60px; }
}