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

body {
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    overflow: hidden;
    font-family: Arial, sans-serif;
    color: #fff;
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.controls {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
}

button {
    padding: 12px 24px;
    font-size: 16px;
    font-weight: bold;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

button:active {
    transform: translateY(0);
}

#gameCanvas {
    display: block;
    background: #1a1a2e;
    cursor: none;
    border: 3px solid #667eea;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.3);
}

#gameCanvas:focus {
    outline: 2px solid #FFD700;
    outline-offset: 4px;
}

.instructions {
    text-align: center;
    font-size: 14px;
    color: #aaa;
    max-width: 800px;
}

.instructions strong {
    color: #FFD700;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}