:root {
    --bg: #050507;
    --surface: #0a0a0c;
    --surface-light: rgba(255, 255, 255, 0.04);
    --accent: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --text: #ffffff;
    --text-dim: rgba(255, 255, 255, 0.6);
    --grad: linear-gradient(135deg, #00d4ff, #8a2be2);
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, sans-serif;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Background Stars */
.stars {
    position: fixed;
    inset: 0;
    background-image: radial-gradient(circle at 50% 50%, #111 0%, transparent 80%),
                      radial-gradient(circle at 20% 20%, #1a1a1a 0%, transparent 40%);
    z-index: -1;
}

/* Navigation */
.nav {
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
}

.logo-icon {
    font-size: 24px;
    filter: drop-shadow(0 0 10px var(--accent-glow));
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-size: 14px;
    font-weight: 500;
    transition: 0.3s;
}

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

.btn-primary {
    background: var(--accent);
    color: black;
    border: none;
    padding: 8px 18px;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--accent-glow);
}

/* Hero Section */
.hero {
    padding: 100px 20px 40px;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(40px, 8vw, 76px);
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 0.95;
    margin-bottom: 30px;
}

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

.hero-subtitle {
    font-size: 18px;
    color: var(--text-dim);
    max-width: 700px;
    margin: 0 auto 50px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 80px;
}

.btn-primary-large {
    background: var(--accent);
    color: black;
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    transition: 0.3s;
}

.btn-secondary-large {
    background: var(--surface-light);
    color: white;
    border: 1px solid rgba(255,255,255,0.1);
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
}

/* Preview Mockup */
.hero-preview {
    max-width: 900px;
    margin: 0 auto;
}

.preview-mockup {
    background: #111;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 15px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.mockup-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.dots { display: flex; gap: 6px; }
.dots span { width: 8px; height: 8px; border-radius: 50%; background: #333; }
.mockup-title { flex: 1; text-align: center; font-size: 11px; color: #444; text-transform: uppercase; letter-spacing: 1px; }

.mockup-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    height: 300px;
}

.mockup-col {
    background: #080808;
    border-radius: 10px;
    padding: 15px;
    display: flex;
    flex-direction: column;
}

.m-card {
    background: var(--surface-light);
    padding: 10px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    text-align: left;
    margin-bottom: 10px;
}

/* Models Grid */
.models-section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 50px;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.model-card {
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    transition: 0.3s;
    cursor: pointer;
}

.model-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.02);
}

.model-card.highlight {
    border: 1px solid rgba(0, 212, 255, 0.2);
    background: linear-gradient(to bottom, rgba(0,212,255,0.05), transparent);
}

.m-icon {
    font-size: 40px;
    margin-bottom: 20px;
    display: block;
}

.model-card h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.model-card p {
    font-size: 14px;
    color: var(--text-dim);
}

.footer {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-dim);
    font-size: 13px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.animate-up { animation: fadeInUp 0.8s ease forwards; }
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero { padding-top: 60px; }
    .hero-title { font-size: 42px; }
    .mockup-cols { grid-template-columns: 1fr; height: auto; }
    .mockup-col:not(:first-child) { display: none; }
}