:root {
  --bg: #0a0a0a;
  --bg2: #111111;
  --surface: #161616;
  --surface2: #1c1c1c;
  --border: #262626;
  --border2: #333333;
  --text: #f0f0f0;
  --muted: #808080;
  --muted2: #a0a0a0;
  --accent: #ff6b00;
  --accent2: #ff8c1a;
  --accent3: #ff4500;
  --accent-glow: rgba(255,107,0,0.15);
  --green: #10b981;
  --radius: 20px;
  --radius-sm: 12px;
  --max: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent2); }

/* ===== NAV ===== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
nav.scrolled { border-bottom-color: var(--border); background: rgba(10,10,10,0.92); }
.nav-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; padding: 0 24px;
}
.logo {
  font-size: 22px; font-weight: 800; letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 8px;
}
.logo-svg {
  width: 36px; height: 36px;
  filter: drop-shadow(0 4px 12px rgba(255,107,0,0.2));
  flex-shrink: 0;
}
.logo-text {
  background: linear-gradient(135deg, #fff, #ccc);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-links a { color: var(--muted2); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600;
  border: none; cursor: pointer; transition: all .25s;
  text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  color: #fff;
  box-shadow: 0 4px 20px rgba(255,107,0,0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,107,0,0.4);
  color: #fff;
}
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--border2);
}
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-glow); }
.btn-lg { font-size: 16px; padding: 14px 32px; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 100px 24px 60px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -40%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(255,107,0,0.1) 0%, transparent 55%);
  pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; bottom: -20%; right: -5%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(255,69,0,0.06) 0%, transparent 55%);
  pointer-events: none;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,107,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,107,0,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 820px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,107,0,0.08); border: 1px solid rgba(255,107,0,0.2);
  padding: 6px 18px; border-radius: 100px;
  font-size: 13px; color: var(--accent2); font-weight: 500;
  margin-bottom: 28px;
}
.badge .dot {
  width: 8px; height: 8px; background: var(--green); border-radius: 50%;
  animation: pulse 2s infinite;
  box-shadow: 0 0 8px var(--green);
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero h1 {
  font-size: clamp(40px, 7vw, 72px); font-weight: 800;
  line-height: 1.05; margin-bottom: 24px;
  letter-spacing: -0.04em;
}
.hero h1 .grad {
  background: linear-gradient(135deg, var(--accent), var(--accent2), var(--accent3));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: clamp(16px, 2vw, 20px); color: var(--muted2);
  max-width: 620px; margin: 0 auto 40px;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 56px; justify-content: center; margin-top: 72px; flex-wrap: wrap;
}
.stat { text-align: center; }
.stat .num {
  font-size: 36px; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat .label {
  font-size: 12px; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.08em; margin-top: 4px;
}

/* ===== CODE DEMO ===== */
.code-demo {
  max-width: var(--max); margin: -60px auto 80px; padding: 0 24px;
  position: relative; z-index: 2;
}
.code-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.code-header {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
  background: var(--bg2);
}
.code-header .dot { width: 12px; height: 12px; border-radius: 50%; }
.code-header .dot.r { background: #ff5f57; }
.code-header .dot.y { background: #febc2e; }
.code-header .dot.g { background: #28c840; }
.code-header .file {
  margin-left: 12px; font-size: 13px; color: var(--muted);
  font-family: 'Fira Code', 'Monaco', monospace;
}
.code-body {
  padding: 28px; font-family: 'Fira Code', 'Monaco', monospace;
  font-size: 14px; line-height: 1.9; overflow-x: auto;
}
.code-body .kw { color: #c678dd; }
.code-body .str { color: #98c379; }
.code-body .com { color: #5c6370; font-style: italic; }
.code-body .fn { color: #61afef; }
.code-body .var { color: #e06c75; }

/* ===== SECTIONS ===== */
section { padding: 100px 24px; }
.section-inner { max-width: var(--max); margin: 0 auto; }
.section-title { text-align: center; margin-bottom: 64px; }
.section-title .eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600;
  color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.section-title h2 {
  font-size: clamp(30px, 4.5vw, 48px); font-weight: 800;
  letter-spacing: -0.03em; margin-bottom: 16px;
}
.section-title p {
  color: var(--muted2); font-size: 18px; max-width: 600px; margin: 0 auto;
}

/* ===== FEATURES ===== */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px;
  transition: all .3s; position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0; transition: opacity .3s;
}
.feature-card:hover {
  border-color: var(--border2); transform: translateY(-4px);
  background: var(--surface2);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.feature-card:hover::before { opacity: 1; }
.feature-card .icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(255,107,0,0.15), rgba(255,69,0,0.05));
  border: 1px solid rgba(255,107,0,0.1);
}
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--muted2); font-size: 14px; line-height: 1.7; }

/* ===== MODELS ===== */
.models-grid {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}
.model-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 10px 18px; border-radius: 100px;
  font-size: 14px; font-weight: 500;
  transition: all .2s;
}
.model-tag:hover {
  border-color: var(--accent); background: var(--accent-glow);
  transform: translateY(-2px);
}
.model-tag .check { color: var(--green); }

/* ===== PRICING ===== */
.pricing-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px; max-width: 960px; margin: 0 auto;
}
.price-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px 36px;
  position: relative; transition: all .3s;
}
.price-card:hover { border-color: var(--border2); transform: translateY(-2px); }
.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 60px rgba(255,107,0,0.1);
  background: linear-gradient(180deg, rgba(255,107,0,0.03), var(--surface));
}
.price-card .tag {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  color: #fff; font-size: 12px; font-weight: 700;
  padding: 5px 18px; border-radius: 100px;
  box-shadow: 0 4px 15px rgba(255,107,0,0.3);
}
.price-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.price-card .desc { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.price-card .price { font-size: 44px; font-weight: 800; margin-bottom: 4px; }
.price-card .price span { font-size: 16px; color: var(--muted); font-weight: 400; }
.price-card .per { color: var(--muted); font-size: 14px; margin-bottom: 32px; }
.price-card ul { list-style: none; margin-bottom: 32px; }
.price-card ul li {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0; font-size: 14px; color: var(--text);
  border-bottom: 1px solid var(--border);
}
.price-card ul li:last-child { border: none; }
.price-card ul li .check { color: var(--green); font-weight: 700; }

/* ===== CTA ===== */
.cta-section {
  text-align: center; padding: 120px 24px;
  background: linear-gradient(180deg, transparent, rgba(255,107,0,0.03));
}
.cta-section h2 {
  font-size: clamp(30px, 4.5vw, 48px); font-weight: 800; margin-bottom: 16px;
  letter-spacing: -0.03em;
}
.cta-section p { color: var(--muted2); margin-bottom: 36px; font-size: 18px; }

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border); padding: 56px 24px;
  background: var(--bg2);
}
.footer-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 24px;
}
.footer-inner .logo { font-size: 18px; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { color: var(--muted2); font-size: 14px; }
.footer-links a:hover { color: var(--text); }
.footer-copy { color: var(--muted); font-size: 13px; }

/* ===== ANIMATIONS ===== */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-stats { gap: 28px; }
  .stat .num { font-size: 28px; }
  section { padding: 64px 24px; }
  .code-demo { margin-top: -40px; }
}