:root {
    --bg-dark: #030712;
    --bg-card: #111827;
    --text-primary: #F9FAFB;
    --text-secondary: #9CA3AF;
    --accent-primary: #7C3AED; /* Electric Violet */
    --accent-secondary: #06B6D4; /* Cyan */
    --accent-glow: rgba(124, 58, 237, 0.5);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --container-width: 1200px;
    --header-height: 80px;
}

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

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

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.gradient-text {
    background: linear-gradient(135deg, #fff 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-primary), #6D28D9);
    color: white;
    padding: 12px 24px;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

.btn-secondary {
    display: inline-block;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    padding: 12px 24px;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary.large, .btn-secondary.large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Background Effects */
.background-glow {
    position: fixed;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at 50% 0%, rgba(124, 58, 237, 0.15), transparent 70%);
    z-index: -1;
    pointer-events: none;
}

/* Header */
.glass-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(3, 7, 18, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.glass-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a:not(.btn-primary) {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:not(.btn-primary):hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    padding-top: calc(var(--header-height) + 80px);
    padding-bottom: 100px;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-secondary);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Hero Visual - Orbit Animation */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-system {
    position: relative;
    width: 400px;
    height: 400px;
}

.planet.core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at 30% 30%, var(--accent-secondary), #0891B2);
    border-radius: 50%;
    box-shadow: 0 0 60px rgba(6, 182, 212, 0.4);
    z-index: 10;
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.orbit-1 { width: 200px; height: 200px; animation: spin 15s linear infinite; }
.orbit-2 { width: 300px; height: 300px; animation: spin 25s linear infinite reverse; }
.orbit-3 { width: 400px; height: 400px; animation: spin 35s linear infinite; }

.satellite {
    position: absolute;
    top: 50%;
    left: 100%; /* Start at the right edge */
    transform: translate(-50%, -50%); /* Center on the line */
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 0 15px white;
}

.orbit-1 .satellite { background: var(--accent-primary); box-shadow: 0 0 15px var(--accent-primary); }
.orbit-2 .satellite { width: 16px; height: 16px; }

@keyframes spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Features Section */
.features {
    padding: 100px 0;
    background: linear-gradient(to bottom, transparent, rgba(17, 24, 39, 0.5));
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.25rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 24px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.icon-box {
    width: 56px;
    height: 56px;
    background: rgba(124, 58, 237, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    margin-bottom: 24px;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 12px;
}

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

/* Footer */
footer {
    padding: 60px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 60px;
}

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

.footer-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero-subtitle {
        margin: 0 auto 40px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        height: 400px;
    }
    
    .orbit-system {
        transform: scale(0.8);
    }

    .nav-links {
        display: none; /* Simple hide for mobile MVP */
    }
}