/* Global Variables & Reset */
:root {
    --bg-color: #0d0d0d;
    --card-bg: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-color: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    backdrop-filter: blur(12px);
    background: rgba(13, 13, 13, 0.8);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Ambient Background Glow */
.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: var(--accent-color);
    filter: blur(200px);
    opacity: 0.15;
    border-radius: 50%;
    z-index: -1;
    animation: pulse 8s ease-in-out infinite alternate;
}

.hero-content h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    opacity: 0;
    animation: fadeUp 0.8s ease-out forwards 0.2s;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    opacity: 0;
    animation: fadeUp 0.8s ease-out forwards 0.4s;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--gradient-1);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 20px var(--accent-glow);
    opacity: 0;
    animation: fadeUp 0.8s ease-out forwards 0.6s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

/* Features Section */
.features {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

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

.card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer */
footer {
    padding: 4rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--text-secondary);
}

/* Animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.15; }
    100% { transform: scale(1.2); opacity: 0.25; }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
}