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

body {
    font-family: 'Noto Sans', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.game-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    width: 100%;
    text-align: center;
}

.header {
    margin-bottom: 30px;
}

h1 {
    font-size: 2.5em;
    color: #333;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.stats {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: rgba(255, 255, 255, 0.5);
    padding: 15px;
    border-radius: 15px;
    margin-bottom: 20px;
}

.target-color {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2em;
    font-weight: bold;
}

.target-color-box {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 3px solid #333;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.score, .timer {
    font-size: 1.2em;
    font-weight: bold;
    color: #333;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 15px;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 15px;
}

.color-block {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.color-block:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.color-block.correct {
    border-color: #4CAF50;
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.5);
}

.color-block.wrong {
    border-color: #F44336;
    box-shadow: 0 0 20px rgba(244, 67, 54, 0.5);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.game-controls button {
    background: linear-gradient(45deg, #4CAF50, #45a049);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.game-controls button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.reset-button {
    background: linear-gradient(45deg, #FF6B6B, #FF5252) !important;
}

.game-over {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}

.game-over h2 {
    font-size: 2em;
    color: #333;
    margin-bottom: 20px;
}

.game-over p {
    font-size: 1.5em;
    color: #666;
    margin-bottom: 20px;
}

.play-again-button {
    background: linear-gradient(45deg, #667eea, #764ba2) !important;
}

@media (max-width: 768px) {
    .game-board {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .color-block {
        width: 60px;
        height: 60px;
    }
    
    .stats {
        flex-direction: column;
        gap: 10px;
    }
    
    h1 {
        font-size: 2em;
    }
}