:root {
    --bg: #050505;
    --primary: #ff00ff;
    --secondary: #00ffff;
    --accent: #ffff00;
    --text: #ffffff;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Outfit', sans-serif;
    margin: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.game-container {
    width: 800px;
    height: 500px;
    background: rgba(20, 20, 20, 0.8);
    border: 2px solid var(--secondary);
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 50px rgba(0, 255, 255, 0.3);
}

.game-header {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 10;
}

.back-btn {
    text-decoration: none;
    color: var(--secondary);
    font-weight: bold;
    font-size: 0.9rem;
    text-transform: uppercase;
    border: 1px solid var(--secondary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: var(--secondary);
    color: #000;
}

.score-display {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary);
}

.game-ui {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.instruction {
    color: var(--text-dim);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}