/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0c0c0c;
  --bg-2: #111111;
  --surface: #181818;
  --surface-2: #202020;
  --fg: #f0ece4;
  --fg-2: #b8b0a4;
  --accent: #f5a623;
  --accent-dim: rgba(245, 166, 35, 0.15);
  --border: rgba(240, 236, 228, 0.08);
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 12, 12, 0.92);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 40px;
}
.nav-logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { max-width: 900px; margin: 0 auto; }

.hero-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}
.hero-headline {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.hero-headline em { font-style: italic; color: var(--accent); }
.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-2);
  max-width: 520px;
  margin-bottom: 56px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  width: fit-content;
}
.stat {
  padding: 20px 36px;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat-value {
  font-family: var(--serif);
  font-size: 2rem;
  color: var(--fg);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--fg-2);
  margin-top: 6px;
  letter-spacing: 0.04em;
}
.stat-divider { display: none; }

/* ===== MANIFESTO ===== */
.manifesto {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 100px 40px;
}
.manifesto-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.manifesto-text p {
  font-size: 1.125rem;
  color: var(--fg-2);
  line-height: 1.8;
  margin-bottom: 20px;
}
.manifesto-accent { display: flex; flex-direction: column; }
.manifesto-big {
  font-family: var(--serif);
  font-size: 5rem;
  color: var(--accent);
  line-height: 1;
}
.manifesto-caption {
  font-size: 0.875rem;
  color: var(--fg-2);
  margin-top: 12px;
  max-width: 260px;
  line-height: 1.6;
}

/* ===== SECTION HEADING ===== */
.section-heading {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
  margin-bottom: 56px;
}

/* ===== MODELS ===== */
.models { padding: 100px 40px; }
.models-inner { max-width: 1200px; margin: 0 auto; }
.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.model-card {
  background: var(--surface);
  padding: 40px 36px;
  position: relative;
  border: 1px solid var(--border);
}
.model-card--highlight {
  border-color: rgba(245, 166, 35, 0.3);
  background: rgba(245, 166, 35, 0.04);
}
.model-badge {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 10px;
  border-radius: 2px;
}
.model-icon {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-bottom: 24px;
  display: flex; align-items: center; justify-content: center;
}
.model-icon::after {
  content: '';
  width: 16px; height: 16px;
  background: var(--accent);
  opacity: 0.4;
  border-radius: 2px;
}
.model-title {
  font-family: var(--serif);
  font-size: 1.25rem;
  margin-bottom: 14px;
}
.model-desc {
  font-size: 0.9rem;
  color: var(--fg-2);
  line-height: 1.7;
  margin-bottom: 24px;
}
.model-target {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ===== MECHANICS ===== */
.mechanics {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 100px 40px;
}
.mechanics-inner { max-width: 1200px; margin: 0 auto; }
.phase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}
.phase {
  background: var(--surface);
  padding: 36px 32px;
  border: 1px solid var(--border);
}
.phase-number {
  font-family: var(--serif);
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: 24px;
}
.phase-title {
  font-family: var(--serif);
  font-size: 1.125rem;
  margin-bottom: 12px;
}
.phase-desc {
  font-size: 0.875rem;
  color: var(--fg-2);
  line-height: 1.7;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 40px;
  text-align: center;
  border-top: 1px solid var(--border);
}
.closing-inner { max-width: 700px; margin: 0 auto; }
.closing-statement {
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.15;
  margin-bottom: 28px;
}
.closing-statement em { font-style: italic; color: var(--accent); }
.closing-sub {
  font-size: 1rem;
  color: var(--fg-2);
  line-height: 1.8;
  max-width: 480px;
  margin: 0 auto;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 40px;
  background: var(--bg-2);
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-brand {
  font-family: var(--serif);
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.footer-tagline {
  font-size: 0.875rem;
  color: var(--fg-2);
  margin-bottom: 32px;
}
.footer-legal {
  font-size: 0.75rem;
  color: rgba(240, 236, 228, 0.25);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .model-grid { grid-template-columns: 1fr; gap: 2px; }
  .phase-grid { grid-template-columns: repeat(2, 1fr); }
  .manifesto-inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 640px) {
  .hero { padding: 100px 24px 60px; }
  .hero-headline { font-size: 2.75rem; }
  .manifesto { padding: 60px 24px; }
  .models { padding: 60px 24px; }
  .mechanics { padding: 60px 24px; }
  .phase-grid { grid-template-columns: 1fr; }
  .closing { padding: 80px 24px; }
  .footer { padding: 48px 24px; }
  .hero-stats { flex-direction: column; width: 100%; }
  .stat { border-right: none; border-bottom: 1px solid var(--border); width: 100%; }
  .stat:last-child { border-bottom: none; }
  .nav-inner { padding: 16px 24px; }
  .stat { padding: 16px 24px; }
  .stat-value { font-size: 1.5rem; }
}