* {
    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;
    overflow: hidden;
}

.game-container {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 900px;
    width: 100%;
}

.header {
    margin-bottom: 15px;
    padding: 0 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.score {
    color: #667eea;
    font-size: 1.2em;
    font-weight: bold;
}

#gameCanvas {
    border: 3px solid #667eea;
    border-radius: 10px;
    background: #87CEEB;
    display: block;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

.controls p {
    margin: 5px 0;
}