* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: radial-gradient(circle at center, #2c3e50 0%, #1a252f 100%);
    color: white;
    overflow: hidden;
}

.main-wrapper {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.back-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 10px 18px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.container {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

h1 {
    font-size: 2.2rem;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #ecf0f1;
}

.coin-scene {
    width: 200px;
    height: 200px;
    perspective: 1000px; 
}

.coin {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.1s linear;
}

.face {
    width: 100%;
    height: 100%;
    position: absolute;
    border-radius: 50%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #f1c40f 0%, #f39c12 40%, #e67e22 60%, #f1c40f 100%);
    border: 2px solid rgba(139, 69, 19, 0.5);
    box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.3), 0 0 20px rgba(0,0,0,0.4);
}

.face .symbol {
    font-size: 4rem;
    color: #b8860b;
    text-shadow: 1px 1px 1px rgba(255,255,255,0.2), -1px -1px 1px rgba(0,0,0,0.4);
}

.face .label {
    margin-top: 10px;
    font-size: 0.8rem;
    font-weight: bold;
    color: #8b4513;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.heads { transform: rotateY(0deg); }
.tails { transform: rotateY(180deg); }

.side {
    width: 100%;
    height: 100%;
    position: absolute;
    transform-style: preserve-3d;
}

.side div {
    position: absolute;
    width: 16px;
    height: 200px;
    left: 92px;
    background: linear-gradient(to right, #b8860b 0%, #f1c40f 50%, #b8860b 100%);
    background-image: repeating-linear-gradient(to bottom, transparent, transparent 3px, rgba(0,0,0,0.1) 3px, rgba(0,0,0,0.1) 6px),
                      linear-gradient(to right, #b8860b 0%, #f1c40f 50%, #b8860b 100%);
}

.side div:nth-child(1)  { transform: rotateY(90deg) translateZ(100px); }
.side div:nth-child(2)  { transform: rotateY(90deg) rotateX(30deg) translateZ(100px); }
.side div:nth-child(3)  { transform: rotateY(90deg) rotateX(60deg) translateZ(100px); }
.side div:nth-child(4)  { transform: rotateY(90deg) rotateX(90deg) translateZ(100px); }
.side div:nth-child(5)  { transform: rotateY(90deg) rotateX(120deg) translateZ(100px); }
.side div:nth-child(6)  { transform: rotateY(90deg) rotateX(150deg) translateZ(100px); }
.side div:nth-child(7)  { transform: rotateY(90deg) rotateX(180deg) translateZ(100px); }
.side div:nth-child(8)  { transform: rotateY(90deg) rotateX(210deg) translateZ(100px); }
.side div:nth-child(9)  { transform: rotateY(90deg) rotateX(240deg) translateZ(100px); }
.side div:nth-child(10) { transform: rotateY(90deg) rotateX(270deg) translateZ(100px); }
.side div:nth-child(11) { transform: rotateY(90deg) rotateX(300deg) translateZ(100px); }
.side div:nth-child(12) { transform: rotateY(90deg) rotateX(330deg) translateZ(100px); }

@keyframes spin-heads {
    0%   { transform: rotateY(0deg) rotateX(10deg); }
    100% { transform: rotateY(1800deg) rotateX(10deg); }
}

@keyframes spin-tails {
    0%   { transform: rotateY(0deg) rotateX(10deg); }
    100% { transform: rotateY(1980deg) rotateX(10deg); }
}

.spin-heads-animation { animation: spin-heads 3s ease-out forwards; }
.spin-tails-animation { animation: spin-tails 3s ease-out forwards; }

button {
    background: #f39c12;
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(243, 156, 18, 0.3);
    transition: all 0.3s ease;
}

.status {
    font-size: 1.1rem;
    color: #bdc3c7;
    font-weight: 300;
}