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

:root {
  --bg: #0f0f14;
  --surface: #16161d;
  --surface-2: #1e1e26;
  --fg: #f8f7f4;
  --fg-muted: #8a8a9a;
  --accent: #2dd4bf;
  --accent-dim: rgba(45, 212, 191, 0.12);
  --border: rgba(248, 247, 244, 0.06);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Instrument Sans', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 { font-family: 'Syne', sans-serif; font-weight: 700; line-height: 1.15; }

/* === NAV === */
.nav {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 15, 20, 0.92);
  backdrop-filter: blur(12px);
}
.nav-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; gap: 0.75rem; }
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  padding: 0.2rem 0.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
}

/* === HERO === */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 2rem 5rem;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 2rem;
}
.eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.hero-title {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--fg);
  margin-bottom: 1.5rem;
  max-width: 700px;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin-bottom: 3rem;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 0.2rem; }
.stat-number {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
}
.stat-label { font-size: 0.78rem; color: var(--fg-muted); }
.stat-divider {
  width: 1px;
  height: 2.5rem;
  background: var(--border);
}

/* === MANIFESTO === */
.manifesto { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.manifesto-inner { max-width: 1100px; margin: 0 auto; padding: 5rem 2rem; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.manifesto-label { font-size: 0.78rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; margin-bottom: 1.25rem; }
.manifesto-text { font-size: 1.15rem; line-height: 1.6; color: var(--fg); }
.manifesto-text--secondary { color: var(--fg-muted); font-size: 1rem; }

/* === SECTION LABEL === */
.section-label { font-size: 0.78rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; margin-bottom: 1rem; }

/* === FEATURES === */
.features { max-width: 1100px; margin: 0 auto; padding: 5rem 2rem; }
.features-header { margin-bottom: 3.5rem; }
.features-title { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.03em; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: rgba(45, 212, 191, 0.3); }
.feature-icon {
  width: 40px; height: 40px;
  background: var(--accent-dim);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.feature-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.75rem; letter-spacing: -0.01em; }
.feature-desc { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.65; }

/* === STACK === */
.stack { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stack-inner { max-width: 1100px; margin: 0 auto; padding: 4rem 2rem; }
.stack-grid { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem; }
.stack-item {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--fg-muted);
  font-weight: 500;
}
.stack-icon { display: flex; align-items: center; }
.stack-formats { font-size: 0.8rem; color: var(--fg-muted); }

/* === PROOF === */
.proof { max-width: 1100px; margin: 0 auto; padding: 5rem 2rem; }
.proof-inner { }
.proof-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.proof-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  background: var(--surface);
  transition: border-color 0.2s;
}
.proof-card:hover { border-color: rgba(45, 212, 191, 0.2); }
.proof-number { font-family: 'Syne', sans-serif; font-size: 0.75rem; color: var(--accent); font-weight: 700; margin-bottom: 0.75rem; letter-spacing: 0.05em; }
.proof-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; letter-spacing: -0.01em; }
.proof-desc { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.6; }

/* === CLOSING === */
.closing { background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%); border-top: 1px solid var(--border); }
.closing-inner { max-width: 1100px; margin: 0 auto; padding: 6rem 2rem; text-align: center; }
.closing-title { font-size: clamp(1.75rem, 3.5vw, 2.75rem); letter-spacing: -0.03em; max-width: 700px; margin: 0 auto 1.5rem; }
.closing-sub { font-size: 1rem; color: var(--fg-muted); max-width: 500px; margin: 0 auto; line-height: 1.7; }

/* === FOOTER === */
.footer { border-top: 1px solid var(--border); }
.footer-inner { max-width: 1100px; margin: 0 auto; padding: 2rem; display: flex; align-items: center; justify-content: space-between; }
.footer-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 0.95rem; }
.footer-copy { font-size: 0.8rem; color: var(--fg-muted); }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 4rem 1.5rem 3rem; }
  .hero-title { font-size: 2.5rem; }
  .hero-stats { gap: 1.25rem; }
  .manifesto-inner { grid-template-columns: 1fr; gap: 2rem; padding: 3rem 1.5rem; }
  .features { padding: 3rem 1.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .proof { padding: 3rem 1.5rem; }
  .proof-grid { grid-template-columns: 1fr; }
  .closing-inner { padding: 4rem 1.5rem; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
  .stat-divider { display: none; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

@media (max-width: 480px) {
  .nav { padding: 1rem 1.25rem; }
}