* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    min-height: 100vh;
    background: linear-gradient(145deg, #0f172a, #1e3a8a);
    display: flex;
    justify-content: center;
    align-items: center;
}

header {
    width: 100%;
    padding: 20px 0;
    position: absolute;
    top: 20%;
}

nav {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);

    h1{
        color: white;
        font-size: 50px;
        text-align: center;
    }
}

nav ul ul {
    margin-top: 15px;
    padding-left: 20px;
    background: none;
    backdrop-filter: none;
    box-shadow: none;
    border: none;
}

nav ul li {
    margin: 10px 0;
}

nav ul li a {
    text-decoration: none;
    color: #e2e8f0;
    font-size: 1.2em;
    font-weight: 500;
    padding: 12px 25px;
    display: block;
    border-radius: 10px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

nav ul li a:hover {
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
}

nav ul li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: 0.5s;
}

nav ul li a:hover::before {
    left: 100%;
}

@media (max-width: 600px) {
    nav {
        padding: 0 15px;
    }

    nav ul {
        padding: 20px;
    }

    nav ul li a {
        font-size: 1em;
        padding: 10px 20px;
    }
}