body, html {
    margin: 0;
    padding: 0;
    font-family: 'Courier New', monospace;
    overflow: hidden;
    background: #282a36;
    color: #f8f8f2;
}

#gameContainer {
    position: absolute;
    width: 100%;
    height: 100%;
}

#menuOverlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(40, 42, 54, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    box-shadow: inset 0 0 50px rgba(139, 233, 253, 0.2);
    border: 1px solid rgba(255, 121, 198, 0.3);
}

.menu-content {
    text-align: center;
    color: #f8f8f2;
    padding: 2rem;
    max-width: 600px;
    background: rgba(68, 71, 90, 0.8);
    border: 2px solid #ff79c6;
    border-radius: 15px;
    box-shadow: 0 0 20px #ff79c6, 0 0 30px #bd93f9;
    animation: flicker 1.5s infinite alternate;
}

h1 {
    font-size: 4rem;
    margin: 0;
    color: #50fa7b;
    text-shadow: 0 0 20px #50fa7b, 0 0 30px #8be9fd;
    letter-spacing: 4px;
    margin-bottom: 1rem;
    animation: neon-glow 1.5s infinite alternate;
}

.welcome-text {
    font-size: 1.2rem;
    color: #6272a4;
    margin-bottom: 3rem;
    letter-spacing: 2px;
    text-shadow: 0 0 5px rgba(98, 114, 164, 0.8);
}

.level-buttons {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.level-btn {
    width: 100%;
    max-width: 300px;
    padding: 1rem;
    background: #44475a;
    border: 2px solid #6272a4;
    border-radius: 8px;
    color: #f8f8f2;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    text-shadow: 0 0 5px rgba(248, 248, 242, 0.7);
    box-shadow: 0 0 15px rgba(139, 233, 253, 0.2);
}

.level-btn:hover {
    background: #ff79c6;
    border-color: #50fa7b;
    color: #282a36;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 5px 20px #50fa7b, 0 0 30px #8be9fd;
}

.level-number {
    font-size: 2rem;
    font-weight: bold;
    color: #8be9fd;
    margin-right: 1rem;
    text-shadow: 0 0 10px #8be9fd;
    min-width: 60px;
}

.level-name {
    font-size: 1.2rem;
    letter-spacing: 2px;
    text-align: left;
    color: #ffb86c;
    text-shadow: 0 0 5px #ffb86c;
}

.hidden {
    display: none;
}

@keyframes neon-glow {
    0% {
        text-shadow: 0 0 10px #50fa7b, 0 0 20px #8be9fd, 0 0 30px #50fa7b;
    }
    100% {
        text-shadow: 0 0 20px #50fa7b, 0 0 40px #8be9fd, 0 0 60px #50fa7b;
    }
}

@keyframes flicker {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.95;
    }
    100% {
        opacity: 1;
    }
}