:root {
    --bg-dark: #050505;
    --bg-card: rgba(255, 255, 255, 0.05);
    --accent-primary: #00f5ff;
    --accent-secondary: #a855f7;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Gradients */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(0, 245, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(168, 85, 247, 0.05) 0%, transparent 50%);
    z-index: -1;
}

/* Typography */
h1, h2, h3 {
    font-weight: 800;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    background: linear-gradient(135deg, #fff 0%, #00f5ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(5, 5, 5, 0.5);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--accent-primary);
    text-decoration: none;
    letter-spacing: -0.05em;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 1.5rem 0 2.5rem;
}

/* Buttons */
.btn {
    padding: 0.8rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
}

.btn-primary {
    background: var(--accent-primary);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 245, 255, 0.5);
}

.btn-secondary {
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    backdrop-filter: blur(4px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Features Section */
.section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

.card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

/* Media/Images */
.img-container {
    width: 100%;
    max-width: 800px;
    margin: 4rem auto;
    border-radius: 32px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.img-container img {
    width: 100%;
    height: auto;
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 3rem; }
    .nav-links { display: none; }
}