Dropdown Navigation Menu | HTML, CSS & JavaScript

:root {
    /* We use a semi-transparent black for the glass effect */
    --glass-bg: rgba(10, 10, 10, 0.75);
    --dropdown-bg: linear-gradient(145deg, #1a1a1a, #0a0a0a);
    --accent: #818cf8; 
    --text-bright: #ffffff;
    --text-dim: #d1d5db;
    --border: rgba(255, 255, 255, 0.12);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    /* Using a high-quality dark abstract background */
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://images.unsplash.com/photo-1618005182384-a83a8bd57fbe?q=80&w=2564&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    height: 100vh;
    color: white;
}

/* --- Modern Glass Navbar --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 8%;
    background: var(--glass-bg);
    backdrop-filter: blur(12px); /* This blurs the background image */
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 60px;
    z-index: 1000;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo span { color: var(--accent); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-weight: 500;
    font-size: 0.95rem;
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--text-bright);
}

/* --- Shaded Dropdown --- */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 15px;
    background: var(--dropdown-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    min-width: 200px;
    padding: 8px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    
    /* Animation */
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li { list-style: none; }

.dropdown-menu a {
    display: block;
    padding: 12px 16px;
    border-radius: 8px;
}

.dropdown-menu a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent);
}

/* --- Hero Section --- */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 80vh;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.btn {
    background: var(--accent);
    color: white;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 0px;
    transition: 0.3s;
}

.btn:hover {
    filter: brightness(1.2);
    box-shadow: 0 0 20px rgba(129, 140, 248, 0.4);
}

- Dropdown Navigation Menu

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