body {
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, #0c2d57 0%, #1565a0 100%);
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.game-container {
    text-align: center;
    background: rgba(10, 30, 60, 0.85);
    border: 2px solid rgba(100, 180, 255, 0.3);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 0 40px rgba(0, 100, 200, 0.4);
    position: relative;
}

.game-info {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 10px;
    color: #7ecfff;
    letter-spacing: 0.05em;
}

#gameCanvas {
    border: 2px solid rgba(100, 180, 255, 0.4);
    border-radius: 10px;
    display: block;
    cursor: pointer;
}

.game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(10, 30, 60, 0.95);
    border: 2px solid rgba(100, 180, 255, 0.5);
    padding: 40px 50px;
    border-radius: 16px;
    box-shadow: 0 0 40px rgba(0, 100, 200, 0.5);
    text-align: center;
    z-index: 1000;
}

.game-over h2 {
    color: #7ecfff;
    margin-bottom: 16px;
    font-size: 2rem;
}

.game-over p {
    font-size: 1.2rem;
    margin-bottom: 24px;
    color: #b0d8f0;
}

.game-over button {
    background: linear-gradient(135deg, #1565a0, #0c2d57);
    color: #7ecfff;
    border: 2px solid rgba(100, 180, 255, 0.5);
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 1.05rem;
    cursor: pointer;
    transition: all 0.25s ease;
    letter-spacing: 0.04em;
}

.game-over button:hover {
    background: linear-gradient(135deg, #1e88c8, #1565a0);
    box-shadow: 0 0 16px rgba(100, 180, 255, 0.5);
}

.controls {
    margin-top: 14px;
    color: rgba(126, 207, 255, 0.6);
    font-size: 0.88rem;
}

.hidden {
    display: none !important;
}