:root {
  --bg: #F5F4F0;
  --bg-dark: #0D0D0F;
  --bg-mid: #1A1A1E;
  --fg: #0D0D0F;
  --fg-light: #F5F4F0;
  --accent: #FF6B2B;
  --accent-dark: #E85A1F;
  --muted: #6B6B70;
  --border: rgba(13,13,15,0.08);
  --border-light: rgba(245,244,240,0.12);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Figtree', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 48px;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.5px;
  color: var(--fg);
}

.nav-tagline {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Section shared */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--fg);
}

/* Hero */
.hero {
  background: var(--bg-dark);
  color: var(--fg-light);
  padding: 100px 0 80px;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
}

.hero-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(52px, 7vw, 88px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -2.5px;
  color: var(--fg-light);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 19px;
  color: rgba(245,244,240,0.65);
  max-width: 580px;
  line-height: 1.65;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  gap: 56px;
  border-top: 1px solid var(--border-light);
  padding-top: 40px;
}

.hero-stat {}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -1.5px;
}

.stat-label {
  display: block;
  font-size: 14px;
  color: rgba(245,244,240,0.5);
  max-width: 200px;
  line-height: 1.45;
}

/* Problem */
.problem {
  padding: 100px 0;
  background: var(--bg);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 56px;
}

.problem-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  background: #fff;
}

.problem-icon {
  font-size: 22px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 16px;
  font-family: var(--font-body);
}

.problem-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.problem-item p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.6;
}

/* Approach */
.approach {
  padding: 100px 0;
  background: var(--fg);
  color: var(--fg-light);
}

.approach-header {
  margin-bottom: 56px;
}

.approach-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.approach .section-title {
  color: var(--fg-light);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.approach-card {
  background: var(--bg-mid);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 32px;
}

.approach-num {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

.approach-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--fg-light);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.approach-card p {
  font-size: 15px;
  color: rgba(245,244,240,0.55);
  line-height: 1.65;
}

/* Stack */
.stack {
  padding: 100px 0;
  background: var(--accent);
}

.stack-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.stack-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(13,13,15,0.5);
  margin-bottom: 16px;
}

.stack-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--bg-dark);
}

.stack-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.stack-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(13,13,15,0.15);
  font-size: 16px;
  font-weight: 500;
  color: var(--bg-dark);
}

.stack-item:first-child {
  border-top: 1px solid rgba(13,13,15,0.15);
}

.stack-bullet {
  color: var(--bg-dark);
  font-weight: 700;
  opacity: 0.5;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Manifesto */
.manifesto {
  padding: 100px 0;
  background: var(--bg);
}

.manifesto-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.manifesto-line {
  width: 48px;
  height: 3px;
  background: var(--accent);
  margin: 0 auto 40px;
}

.manifesto-quote {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.5px;
  color: var(--fg);
  font-style: normal;
}

.manifesto-attr {
  margin-top: 28px;
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}

/* Closing */
.closing {
  padding: 100px 0 120px;
  background: var(--bg-dark);
  color: var(--fg-light);
  text-align: center;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg-light);
  margin-bottom: 28px;
}

.closing-sub {
  font-size: 18px;
  color: rgba(245,244,240,0.55);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.65;
}

/* Footer */
.footer {
  background: #111;
  padding: 40px 0;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--fg-light);
  letter-spacing: -0.3px;
}

.footer-tagline {
  font-size: 12px;
  color: rgba(245,244,240,0.3);
  letter-spacing: 0.5px;
}

.footer-copy {
  font-size: 12px;
  color: rgba(245,244,240,0.2);
  margin-top: 12px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .section-inner { padding: 0 24px; }
  .hero-inner { padding: 0 24px; }
  .hero { padding: 72px 0 60px; }
  .hero-headline { font-size: 48px; letter-spacing: -1.5px; }
  .hero-stats { flex-direction: column; gap: 32px; }
  .stat-num { font-size: 40px; }
  .problem { padding: 72px 0; }
  .problem-grid { grid-template-columns: 1fr; gap: 20px; }
  .approach { padding: 72px 0; }
  .approach-grid { grid-template-columns: 1fr; gap: 20px; }
  .stack { padding: 72px 0; }
  .stack-inner { grid-template-columns: 1fr; gap: 40px; }
  .manifesto { padding: 72px 0; }
  .closing { padding: 72px 0 90px; }
  .footer-inner { padding: 0 24px; }
}