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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.container {
    text-align: center;
    color: white;
}

h1 {
    margin-bottom: 2rem;
    font-size: 2.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.dice-container {
    perspective: 1000px;
    margin: 2rem auto;
    width: var(--die-size, 200px);
    height: var(--die-size, 200px);
}

.dice {
    --die-size: 200px;
    --die-half: calc(var(--die-size) / 2);
    --pip-r: calc(var(--die-size) * 0.102);
    --pip-color: #1a100c;
    --face-bg: #f7f2e8;
    --face-rim: #d6cbb8;
    --face-edge: #1a100c;
    position: relative;
    width: var(--die-size);
    height: var(--die-size);
    transform-style: preserve-3d;
    transform: rotateX(0deg) rotateY(0deg);
    margin: 0 auto;
    transition: transform 0.65s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.dice.is-rolling {
    transition: transform 0.62s linear;
}

.dice .face {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: calc(var(--die-size) * 0.136);
    background-color: var(--face-bg);
    box-shadow: inset 0 0 0 2px var(--face-rim), 0 0 0 1px var(--face-edge);
    backface-visibility: hidden;
    display: block;
}

.dice .front { transform: rotateY(0deg) translateZ(var(--die-half)); }
.dice .right { transform: rotateY(90deg) translateZ(var(--die-half)); }
.dice .top { transform: rotateX(90deg) translateZ(var(--die-half)); }
.dice .bottom { transform: rotateX(-90deg) translateZ(var(--die-half)); }
.dice .left { transform: rotateY(-90deg) translateZ(var(--die-half)); }
.dice .back { transform: rotateY(180deg) translateZ(var(--die-half)); }

.dice .face[data-pips="1"] {
    background-image: radial-gradient(circle var(--pip-r) at 50% 50%, var(--pip-color) 99%, transparent 100%);
}
.dice .face[data-pips="2"] {
    background-image:
        radial-gradient(circle var(--pip-r) at 28% 28%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 72%, var(--pip-color) 99%, transparent 100%);
}
.dice .face[data-pips="3"] {
    background-image:
        radial-gradient(circle var(--pip-r) at 28% 28%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 50% 50%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 72%, var(--pip-color) 99%, transparent 100%);
}
.dice .face[data-pips="4"] {
    background-image:
        radial-gradient(circle var(--pip-r) at 28% 28%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 28%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 28% 72%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 72%, var(--pip-color) 99%, transparent 100%);
}
.dice .face[data-pips="5"] {
    background-image:
        radial-gradient(circle var(--pip-r) at 28% 28%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 28%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 50% 50%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 28% 72%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 72%, var(--pip-color) 99%, transparent 100%);
}
.dice .face[data-pips="6"] {
    background-image:
        radial-gradient(circle var(--pip-r) at 28% 24%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 28% 50%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 28% 76%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 24%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 50%, var(--pip-color) 99%, transparent 100%),
        radial-gradient(circle var(--pip-r) at 72% 76%, var(--pip-color) 99%, transparent 100%);
}

.white-dice {
    --face-bg: #f7f2e8;
    --face-rim: #d6cbb8;
    --face-edge: #1a100c;
    --pip-color: #1a100c;
}

.red-dice {
    --face-bg: #c90c0f;
    --face-rim: #9a1a14;
    --face-edge: #4a0808;
    --pip-color: #f7f2e8;
}

.black-dice {
    --face-bg: #1a1510;
    --face-rim: #3d3428;
    --face-edge: #000;
    --pip-color: #f7f2e8;
}

/* Dice Count Selector */
.dice-count-selector {
    margin: 2rem 0;
    text-align: center;
}

.dice-count-selector h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.count-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.count-btn {
    background: linear-gradient(145deg, #6c757d, #5a6268);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.count-btn:hover {
    background: linear-gradient(145deg, #5a6268, #6c757d);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

.count-btn.active {
    background: linear-gradient(145deg, #28a745, #20c997);
    box-shadow: 0 6px 12px rgba(40, 167, 69, 0.4);
}

.count-btn.active:hover {
    background: linear-gradient(145deg, #20c997, #28a745);
}

/* Dice Area */
.dice-area {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin: 2rem 0;
}

/* Dice Info */
.dice-info {
    margin: 2rem 0;
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.dice-info h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.dice-info p {
    color: white;
    font-size: 1rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    margin: 0;
}

.variant-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.variant-btn {
    background: linear-gradient(145deg, #6c757d, #5a6268);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.variant-btn:hover {
    background: linear-gradient(145deg, #5a6268, #6c757d);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

.variant-btn.active {
    background: linear-gradient(145deg, #28a745, #20c997);
    box-shadow: 0 6px 12px rgba(40, 167, 69, 0.4);
}

.variant-btn.active:hover {
    background: linear-gradient(145deg, #20c997, #28a745);
}

/* Controls */
.controls {
    margin: 2rem 0;
}

.roll-section {
    text-align: center;
    margin-bottom: 2rem;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.roll-btn {
    background: linear-gradient(145deg, #dc3545, #c82333);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    box-shadow: 0 6px 15px rgba(220, 53, 69, 0.4);
    transition: all 0.3s ease;
    margin-bottom: 15px;
}

.roll-btn:hover:not(:disabled) {
    background: linear-gradient(145deg, #c82333, #dc3545);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(220, 53, 69, 0.6);
}

.roll-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.roll-result {
    color: white;
    font-size: 1.2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    min-height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.manual-controls {
    text-align: center;
}

.manual-controls h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.controls button {
    background: linear-gradient(145deg, #4CAF50, #45a049);
    color: white;
    border: none;
    padding: 12px 20px;
    margin: 5px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.controls button:hover {
    background: linear-gradient(145deg, #45a049, #4CAF50);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

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

/* Face labels */
.face-labels {
    display: flex;
    justify-content: space-around;
    margin-top: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.label {
    background: rgba(255,255,255,0.2);
    padding: 10px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 18px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
}

/* Auto-rotate animation - Correct dice orientation where opposite faces sum to 7 */
@keyframes autoRotate {
    0% { transform: rotateX(0deg) rotateY(0deg); }        /* Face 1 (front) */
    16.66% { transform: rotateX(0deg) rotateY(-90deg); }  /* Face 2 (left) */
    33.33% { transform: rotateX(-90deg) rotateY(0deg); }  /* Face 3 (bottom) */
    50% { transform: rotateX(90deg) rotateY(0deg); }      /* Face 4 (top) - opposite of 3 */
    66.66% { transform: rotateX(0deg) rotateY(90deg); }   /* Face 5 (right) - opposite of 2 */
    83.33% { transform: rotateX(0deg) rotateY(180deg); }  /* Face 6 (back) - opposite of 1 */
    100% { transform: rotateX(0deg) rotateY(0deg); }      /* Back to Face 1 */
}

/* Rolling animations - Each animation ends on a specific face value */
/* Face 1 (front) - rotateX(0deg) rotateY(0deg) */
@keyframes rollToFace1 {
    0% { 
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    25% { 
        transform: rotateX(180deg) rotateY(90deg) rotateZ(45deg);
    }
    50% { 
        transform: rotateX(360deg) rotateY(180deg) rotateZ(90deg);
    }
    75% { 
        transform: rotateX(540deg) rotateY(270deg) rotateZ(135deg);
    }
    100% { 
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
}

/* Face 2 (left) - rotateX(0deg) rotateY(-90deg) */
@keyframes rollToFace2 {
    0% { 
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    20% { 
        transform: rotateX(120deg) rotateY(60deg) rotateZ(30deg);
    }
    40% { 
        transform: rotateX(240deg) rotateY(120deg) rotateZ(60deg);
    }
    60% { 
        transform: rotateX(360deg) rotateY(180deg) rotateZ(90deg);
    }
    80% { 
        transform: rotateX(480deg) rotateY(240deg) rotateZ(120deg);
    }
    100% { 
        transform: rotateX(0deg) rotateY(-90deg) rotateZ(0deg);
    }
}

/* Face 3 (bottom) - rotateX(-90deg) rotateY(0deg) */
@keyframes rollToFace3 {
    0% { 
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    15% { 
        transform: rotateX(90deg) rotateY(45deg) rotateZ(22deg);
    }
    30% { 
        transform: rotateX(180deg) rotateY(90deg) rotateZ(45deg);
    }
    45% { 
        transform: rotateX(270deg) rotateY(135deg) rotateZ(67deg);
    }
    60% { 
        transform: rotateX(360deg) rotateY(180deg) rotateZ(90deg);
    }
    75% { 
        transform: rotateX(450deg) rotateY(225deg) rotateZ(112deg);
    }
    90% { 
        transform: rotateX(540deg) rotateY(270deg) rotateZ(135deg);
    }
    100% { 
        transform: rotateX(-90deg) rotateY(0deg) rotateZ(0deg);
    }
}

/* Face 4 (top) - rotateX(90deg) rotateY(0deg) */
@keyframes rollToFace4 {
    0% { 
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    25% { 
        transform: rotateX(200deg) rotateY(100deg) rotateZ(50deg);
    }
    50% { 
        transform: rotateX(400deg) rotateY(200deg) rotateZ(100deg);
    }
    75% { 
        transform: rotateX(600deg) rotateY(300deg) rotateZ(150deg);
    }
    100% { 
        transform: rotateX(90deg) rotateY(0deg) rotateZ(0deg);
    }
}

/* Face 5 (right) - rotateX(0deg) rotateY(90deg) */
@keyframes rollToFace5 {
    0% { 
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    30% { 
        transform: rotateX(150deg) rotateY(75deg) rotateZ(37deg);
    }
    60% { 
        transform: rotateX(300deg) rotateY(150deg) rotateZ(75deg);
    }
    100% { 
        transform: rotateX(0deg) rotateY(90deg) rotateZ(0deg);
    }
}

/* Face 6 (back) - rotateX(0deg) rotateY(180deg) */
@keyframes rollToFace6 {
    0% { 
        transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
    }
    20% { 
        transform: rotateX(180deg) rotateY(90deg) rotateZ(45deg);
    }
    40% { 
        transform: rotateX(360deg) rotateY(180deg) rotateZ(90deg);
    }
    60% { 
        transform: rotateX(540deg) rotateY(270deg) rotateZ(135deg);
    }
    80% { 
        transform: rotateX(720deg) rotateY(360deg) rotateZ(180deg);
    }
    100% { 
        transform: rotateX(0deg) rotateY(180deg) rotateZ(0deg);
    }
}

/* Responsive design */
@media (prefers-reduced-motion: reduce) {
    .dice,
    .dice.is-rolling {
        transition: none;
    }
}

@media (max-width: 768px) {
    .dice-container,
    .dice {
        --die-size: 150px;
        width: var(--die-size);
        height: var(--die-size);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .controls button {
        padding: 10px 15px;
        font-size: 14px;
    }
}