:root {
    /* Color Palette */
    --bg-dark: #0a0a0f;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-hover: rgba(255, 255, 255, 0.1);

    --primary: #00f2ea;
    /* Cyan Neon */
    --secondary: #4f46e5;
    /* Indigo */
    --accent: #f59e0b;
    /* Amber/Gold */
    --danger: #ef4444;

    --text-main: #ffffff;
    --text-muted: #9ca3af;

    /* Typography */
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Plus Jakarta Sans', system-ui, sans-serif;

    /* Effects */
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glow-primary: 0 0 20px rgba(0, 242, 234, 0.3);
}

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

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

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    transition: all 0.4s ease;
    border-bottom: 1px solid transparent;
    /* Start transparent */
}

nav.nav-scrolled {
    background: rgba(10, 10, 15, 0.85);
    /* Slightly more transparent dark */
    backdrop-filter: blur(12px);
    border-bottom: var(--glass-border);
    padding: 1rem 0;
    /* Shrink slightly on scroll */
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, var(--text-muted) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo img {
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.logo:hover img {
    box-shadow: 0 0 15px rgba(0, 242, 234, 0.4);
    transform: scale(1.05);
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 2rem;
    transition: color 0.3s;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

.btn-primary {
    background: var(--primary);
    color: #000;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 0 15px rgba(0, 242, 234, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(0, 242, 234, 0.4);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 5rem;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero h1 span {
    display: block;
    background: linear-gradient(90deg, var(--text-main) 0%, var(--text-muted) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Feature Cards */
.features {
    padding: 8rem 0;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.card {
    background: var(--bg-card);
    border: var(--glass-border);
    padding: 2.5rem;
    border-radius: 20px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.card:hover {
    transform: translateY(-10px);
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.2);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card p {
    color: var(--text-muted);
}