body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* Centrar verticalmente */
    margin: 0;
    font-family: 'Courier New', Courier, monospace;
    transition: background-color 0.5s ease;
    background-color: #a0a8ff; /* Color inicial de fondo */
    height: 100vh; /* Para que el body ocupe toda la altura de la pantalla */
}

#game-container {
    display: flex;
    width: 600px;
    height: 600px;
    border: 4px solid #8890e0;
    border-radius: 15px;
    margin-bottom: 10px;
    box-shadow: 0 0 20px rgba(136, 144, 224, 0.5);
    overflow: hidden;
    position: relative;
}

#info-container {
    text-align: center;
    color: #5058a0;
    background-color: #e0e4ff;
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #8890e0;
    margin-top: 20px;
    font-size: 16px;
    width: 400px;
}

#restart-button {
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #90e890;
    color: #306030;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

#restart-button:hover {
    background-color: #a8f0a8;
    transform: scale(1.05);
}

#restart-button.prominent {
    background-color: #f0a878;
    font-size: 16px;
    padding: 15px 25px;
}

#restart-button.prominent:hover {
    background-color: #ffc0a0;
}

#game-over-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #e05858;
    font-weight: bold;
    font-size: 64px;
    text-shadow: 2px 2px #ffd0d0;
    display: none;
    z-index: 10;
}

#audio-controls {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

#toggle-music {
    padding: 5px 10px;
    background-color: #90e890;
    color: #306030;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

#toggle-music:hover {
    background-color: #a8f0a8;
}

#volume-slider {
    width: 100px;
}

/* Clases para cambios de color por nivel */
.level-color-1 {
    background-color: #a0a8ff;
}

.level-color-2 {
    background-color: #ffa0a8;
}

.level-color-3 {
    background-color: #a8ffa0;
}

/* Efecto CRT sutil */
#game-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        rgba(255, 255, 255, 0) 50%,
        rgba(0, 0, 0, 0.1) 50%
    );
    background-size: 100% 4px;
    z-index: 2;
    pointer-events: none;
    opacity: 0.3;
    border-radius: 15px;
}

/* Efecto de línea de escaneo */
@keyframes scanline {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 0 32px;
    }
}

#game-container::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0),
        rgba(255, 255, 255, 0) 50%,
        rgba(0, 0, 0, 0.1) 50%,
        rgba(0, 0, 0, 0.1)
    );
    background-size: 100% 4px;
    animation: scanline 1s linear infinite;
    pointer-events: none;
    opacity: 0.2;
    border-radius: 15px;
}