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

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

.container {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2.5em;
}

.game-info {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    font-size: 1.2em;
    font-weight: bold;
}

.score, .high-score {
    color: #667eea;
}

#gameCanvas {
    border: 3px solid #333;
    border-radius: 10px;
    display: block;
    margin: 0 auto 20px;
    background-color: #f0f0f0;
}

.controls {
    margin-top: 20px;
}

.controls p {
    margin-bottom: 15px;
    color: #666;
    font-size: 0.9em;
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 1em;
    border-radius: 25px;
    cursor: pointer;
    margin: 0 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

button:active:not(:disabled) {
    transform: translateY(0);
}