:root {
    --primary-color: #0f172a;
    --secondary-color: #38bdf8;
    --accent-color: #f472b6;
    --text-color: #e2e8f0;
    --light-bg: #1e293b;
    --darker-bg: #0f172a;
    --card-bg: #1e293b;
    --gradient-1: linear-gradient(135deg, #38bdf8, #818cf8);
    --gradient-2: linear-gradient(135deg, #f472b6, #fb7185);
    --neon-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--darker-bg);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.03) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(244, 114, 182, 0.03) 0%, transparent 20%);
}

nav {
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(51, 51, 51, 0.3);
}

.logo {
    color: var(--secondary-color);
    font-size: 1.5rem;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
    transition: all 0.3s ease;
}

.logo:hover {
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.5);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
    border-radius: 8px;
}

.nav-links a:hover {
    color: var(--secondary-color);
    background-color: rgba(56, 189, 248, 0.1);
    transform: translateY(-2px);
}

.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(10px);
    min-width: 200px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    border-radius: 12px;
    border: 1px solid rgba(56, 189, 248, 0.1);
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.3s ease;
}

.dropdown:hover .dropdown-content {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 12px 16px;
    display: block;
}

.dropdown-content a:hover {
    background-color: rgba(56, 189, 248, 0.1);
    transform: translateX(5px);
}

.hero {
    background: var(--light-bg);
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(56, 189, 248, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(244, 114, 182, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    text-shadow: var(--neon-shadow);
}

.hero p {
    font-size: 1.2rem;
    position: relative;
    color: var(--text-color);
    opacity: 0.9;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    text-align: center;
    border: 1px solid rgba(56, 189, 248, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 48px rgba(0,0,0,0.3);
}

.feature-card h2 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.feature-card p {
    color: var(--text-color);
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        text-align: center;
        padding: 1rem 0;
    }

    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
        margin-top: 1rem;
        width: 100%;
    }

    .dropdown-content {
        position: static;
        box-shadow: none;
        opacity: 1;
        transform: none;
        border: none;
        background: transparent;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .features {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
    }

    .feature-card:hover {
        transform: none;
    }
}