:root {
  --bg: #0F0F12;
  --bg-alt: #161619;
  --fg: #F5F5F0;
  --fg-muted: #8A8A8E;
  --accent: #FF8C00;
  --accent-dim: #CC6E00;
  --accent-glow: rgba(255, 140, 0, 0.15);
  --border: rgba(255,255,255,0.07);
  --radius: 6px;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAV ────────────────────────────────── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { font-size: 18px; color: var(--accent); }
.brand-name { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 17px; letter-spacing: -0.02em; }
.nav-tagline { font-size: 13px; color: var(--fg-muted); letter-spacing: 0.08em; text-transform: uppercase; }

/* ── HERO ───────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 80px 48px 100px;
  align-items: center;
}
.hero-eyebrow {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.highlight { color: var(--accent); }
.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 460px;
  line-height: 1.7;
}

/* Flow diagram */
.flow-diagram {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.flow-node {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--border);
}
.node-icon { font-size: 16px; color: var(--accent); min-width: 24px; text-align: center; }
.node-label { font-size: 14px; font-weight: 500; }
.node-sub { font-size: 12px; color: var(--fg-muted); margin-top: 1px; }
.node-input .node-icon { color: #60A5FA; }
.node-ai .node-icon { color: var(--accent); }
.node-action .node-icon { color: #A78BFA; }
.node-done .node-icon { color: #34D399; }
.flow-arrow {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 20px;
}
.arrow-line { height: 16px; width: 2px; background: var(--border); }
.arrow-head { font-size: 14px; color: var(--fg-muted); }
.flow-note { margin-top: 8px; font-size: 12px; color: var(--fg-muted); text-align: center; letter-spacing: 0.05em; }

/* ── PROBLEM ────────────────────────────── */
.problem { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.problem-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 80px 48px;
}
.problem-heading {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 36px;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.problem-body { font-size: 15px; color: var(--fg-muted); line-height: 1.7; margin-bottom: 16px; }
.stat-row { display: flex; flex-direction: column; gap: 40px; }
.stat { padding-left: 24px; border-left: 2px solid var(--accent); }
.stat-number {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 56px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-text { font-size: 14px; color: var(--fg-muted); line-height: 1.6; }

/* ── HOW ───────────────────────────────── */
.how { padding: 100px 48px; }
.how-heading {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 48px;
}
.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 48px; }
.how-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.how-icon { font-size: 22px; color: var(--accent); margin-bottom: 16px; }
.how-card h3 { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 18px; margin-bottom: 10px; }
.how-card p { font-size: 14px; color: var(--fg-muted); line-height: 1.7; }
.how-pricing { text-align: center; }
.pricing-tag { display: inline-block; background: var(--accent-glow); border: 1px solid rgba(255,140,0,0.2); border-radius: 100px; padding: 10px 24px; font-size: 14px; font-weight: 500; color: var(--accent); }

/* ── MANIFESTO ──────────────────────────── */
.manifesto { padding: 80px 48px; background: var(--bg-alt); }
.manifesto-inner { max-width: 760px; }
.manifesto-quote {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: clamp(20px, 2.5vw, 28px);
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin-bottom: 32px;
}
.manifesto-body { font-size: 15px; color: var(--fg-muted); line-height: 1.8; margin-bottom: 16px; }

/* ── CLOSING ───────────────────────────── */
.closing { padding: 100px 48px; }
.closing-inner { max-width: 720px; }
.closing-headline {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(36px, 4vw, 64px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.closing-sub { font-size: 16px; color: var(--fg-muted); margin-bottom: 40px; }
.closing-tagline {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  text-transform: uppercase;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

/* ── RESPONSIVE ────────────────────────── */
@media (max-width: 768px) {
  nav { padding: 20px 24px; }
  .hero { grid-template-columns: 1fr; gap: 48px; padding: 60px 24px 80px; }
  .problem-inner { grid-template-columns: 1fr; gap: 48px; padding: 60px 24px; }
  .stat-row { gap: 28px; }
  .how { padding: 60px 24px; }
  .how-grid { grid-template-columns: 1fr; }
  .manifesto { padding: 60px 24px; }
  .closing { padding: 60px 24px; }
}