:root {
  --bg: #0D0D0D;
  --surface: #161616;
  --surface-2: #1F1F1F;
  --accent: #FF7A3D;
  --accent-dim: rgba(255, 122, 61, 0.12);
  --text: #F5F0E8;
  --text-muted: rgba(245, 240, 232, 0.5);
  --border: rgba(245, 240, 232, 0.08);
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

/* ── NAVBAR ── */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 64px;
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav-tagline {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── HERO ── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 100px 64px 80px;
  min-height: 88vh;
  align-items: center;
  border-bottom: 1px solid var(--border);
}
.hero-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  border: 1px solid var(--accent-dim);
  padding: 6px 12px;
  border-radius: 2px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(52px, 6vw, 88px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 32px;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 440px;
  font-weight: 300;
}
.hero-visual {
  position: relative;
}
.hero-curation-stack {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 28px;
}
.curation-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.curation-products {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.c-prod {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px;
  background: var(--surface-2);
  border-radius: 3px;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}
.c-prod:hover { border-color: rgba(255,122,61,0.3); }
.c-prod-img {
  width: 56px;
  height: 56px;
  border-radius: 3px;
  flex-shrink: 0;
}
.c-prod-meta { flex: 1; }
.c-prod-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}
.c-prod-signal {
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}
.signal-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.hero-badge {
  position: absolute;
  bottom: -20px;
  left: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 100px;
}
.badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── SECTION LABEL ── */
.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  border: 1px solid var(--accent-dim);
  padding: 5px 10px;
  border-radius: 2px;
}

/* ── CURATION ── */
.curation {
  padding: 100px 64px;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.curation-header h2 {
  font-family: var(--font-display);
  font-size: clamp(40px, 4vw, 60px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.curation-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}
.curation-features {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.cf-item {
  display: flex;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.cf-item:first-child { border-top: 1px solid var(--border); }
.cf-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.cf-text h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.cf-text p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 300;
}

/* ── ENGINE ── */
.engine {
  padding: 100px 64px;
  border-bottom: 1px solid var(--border);
}
.engine-header {
  max-width: 640px;
  margin-bottom: 64px;
}
.engine-header h2 {
  font-family: var(--font-display);
  font-size: clamp(40px, 4vw, 60px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.engine-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}
.platforms {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-bottom: 48px;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.platform {
  background: var(--surface);
  padding: 28px 32px;
}
.platform-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.platform-format {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  font-weight: 300;
}
.ad-preview {
  display: flex;
  justify-content: center;
}
.ad-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px 40px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  position: relative;
}
.ad-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 10px;
  border-radius: 2px;
  margin-bottom: 16px;
}
.ad-caption {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 400;
  font-style: italic;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 20px;
}
.ad-cta {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
}

/* ── AUTONOMY ── */
.autonomy {
  padding: 100px 64px;
  border-bottom: 1px solid var(--border);
}
.autonomy-content {
  max-width: 680px;
}
.autonomy-content h2 {
  font-family: var(--font-display);
  font-size: clamp(40px, 4vw, 60px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.autonomy-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 56px;
}
.loop-diagram {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  row-gap: 16px;
}
.loop-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 16px 24px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.loop-arrow {
  font-size: 20px;
  color: var(--accent);
  padding: 0 12px;
  font-weight: 300;
}

/* ── CLOSING ── */
.closing {
  padding: 100px 64px 120px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.closing p {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto;
  font-weight: 300;
}

/* ── FOOTER ── */
footer {
  padding: 48px 64px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
}
.footer-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.footer-copy {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .navbar { padding: 20px 24px; }
  .hero { grid-template-columns: 1fr; padding: 60px 24px 48px; gap: 48px; min-height: auto; }
  .hero-headline { font-size: 44px; }
  .curation { grid-template-columns: 1fr; padding: 64px 24px; gap: 48px; }
  .engine { padding: 64px 24px; }
  .platforms { grid-template-columns: 1fr; }
  .autonomy { padding: 64px 24px; }
  .closing { padding: 64px 24px 80px; }
  footer { flex-direction: column; gap: 12px; text-align: center; padding: 32px 24px; }
  .loop-diagram { flex-direction: column; }
  .loop-arrow { transform: rotate(90deg); padding: 4px 0; }
}