/* === Base === */
:root {
  --bg: #0f1623;
  --surface: #16202e;
  --border: #1f2d40;
  --fg: #e8edf5;
  --fg-muted: #8899aa;
  --accent: #f59e0b;
  --accent-dim: rgba(245,158,11,0.12);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === Typography === */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; }

/* === Nav === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  background: rgba(15,22,35,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.nav-tag {
  font-size: 0.75rem;
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: 2rem;
}

/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 5rem;
  overflow: hidden;
}
.hero-inner { max-width: 1100px; margin: 0 auto; width: 100%; }
.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(245,158,11,0.25);
  padding: 0.3rem 0.9rem;
  border-radius: 2rem;
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 1.5rem;
  max-width: 15ch;
  line-height: 1.05;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 52ch;
  margin-bottom: 3rem;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.stat-value {
  display: block;
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 0.15rem;
}
.stat-divider {
  width: 1px;
  height: 3rem;
  background: var(--border);
}
.hero-bg-shape {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 45vw;
  height: 45vw;
  max-width: 600px;
  max-height: 600px;
  background: radial-gradient(circle, rgba(245,158,11,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* === Proof === */
.proof {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2rem 2rem;
}
.proof-inner { max-width: 1100px; margin: 0 auto; }
.proof-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  font-family: var(--font-head);
  font-weight: 600;
  margin-bottom: 1rem;
}
.proof-types {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.proof-type {
  padding: 0.4rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 2rem;
  font-size: 0.85rem;
  color: var(--fg-muted);
  font-weight: 500;
}

/* === Section title === */
.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  letter-spacing: -0.02em;
  max-width: 22ch;
  margin-bottom: 3rem;
}

/* === Features === */
.features { padding: 6rem 2rem; }
.features-inner { max-width: 1100px; margin: 0 auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 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(245,158,11,0.3); }
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.feature-card h3 {
  font-size: 1.05rem;
  font-family: var(--font-head);
  margin-bottom: 0.6rem;
  color: var(--fg);
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* === Process === */
.process { padding: 5rem 2rem; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.process-inner { max-width: 1100px; margin: 0 auto; }
.process-steps {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}
.step {
  flex: 1;
  min-width: 220px;
}
.step-num {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.step-body h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}
.step-body p {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.65;
}
.step-arrow {
  flex-shrink: 0;
  opacity: 0.5;
}

/* === Manifesto === */
.manifesto { padding: 7rem 2rem; }
.manifesto-inner { max-width: 1100px; margin: 0 auto; }
.manifesto-quote {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 2.8vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  max-width: 30ch;
  margin-bottom: 2.5rem;
  line-height: 1.3;
}
.manifesto-body {
  font-size: 1rem;
  color: var(--fg-muted);
  max-width: 60ch;
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

/* === Footer === */
.footer { border-top: 1px solid var(--border); padding: 2.5rem 2rem; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-logo { display: flex; align-items: center; gap: 0.5rem; font-family: var(--font-head); font-weight: 700; font-size: 0.95rem; }
.footer-tagline { font-size: 0.8rem; color: var(--fg-muted); }

/* === Responsive === */
@media (max-width: 768px) {
  .hero { padding: 7rem 1.5rem 4rem; }
  .hero-headline { font-size: 2.5rem; }
  .hero-stats { gap: 1.25rem; }
  .stat-divider { display: none; }
  .process-steps { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); }
  .features { padding: 4rem 1.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .manifesto { padding: 4rem 1.5rem; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .nav { padding: 0.9rem 1.5rem; }
}

@media (max-width: 480px) {
  .hero-stats { flex-direction: column; align-items: flex-start; }
  .proof-types { gap: 0.5rem; }
}