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

:root {
  --bg: #111111;
  --bg-card: #1c1c1c;
  --bg-section: #141414;
  --accent: #e8a849;
  --accent-dim: rgba(232, 168, 73, 0.15);
  --cream: #f0ebe0;
  --muted: #888888;
  --fg: #f0ebe0;
  --fg-dim: rgba(240, 235, 224, 0.55);
  --line: rgba(240, 235, 224, 0.08);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17,17,17,0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  padding: 0 24px;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.nav-tagline {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* === HERO === */
.hero {
  border-bottom: 1px solid var(--line);
  padding: 0;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  padding: 96px 24px;
  min-height: 580px;
}

.hero-left { display: flex; flex-direction: column; }

.hero-kicker {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-headline {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--cream);
  margin-bottom: 32px;
}

.hero-sub {
  font-size: 1rem;
  color: var(--fg-dim);
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #111;
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: #f0b85a;
  border-color: #f0b85a;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(232,168,73,0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--cream);
  border: 1px solid rgba(240,235,224,0.2);
}

.btn-ghost:hover {
  background: rgba(240,235,224,0.06);
  border-color: rgba(240,235,224,0.35);
}

.hero-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cream);
  background: var(--accent-dim);
  border: 1px solid rgba(232,168,73,0.2);
  padding: 5px 12px;
  border-radius: 100px;
}

.badge-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
  opacity: 0.4;
}

/* === PANEL VISUAL === */
.hero-right { display: flex; justify-content: center; align-items: center; }

.panel-visual {
  width: 100%;
  max-width: 400px;
  border: 1px solid rgba(232,168,73,0.25);
  position: relative;
  box-shadow: 0 0 60px rgba(232,168,73,0.06), inset 0 0 60px rgba(0,0,0,0.3);
}

.panel-visual::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232,168,73,0.5), transparent);
}

.panel-layer {
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.panel-layer:last-of-type { border-bottom: none; }

.panel-layer::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
}

.panel-layer-1::before { background: #c4963a; }
.panel-layer-1 { background: rgba(196,150,58,0.05); }

.panel-layer-2::before { background: #8a5fa8; }
.panel-layer-2 { background: rgba(138,95,168,0.05); }

.panel-layer-3::before { background: #4a8fa8; }
.panel-layer-3 { background: rgba(74,143,168,0.05); }

.panel-layer-4::before { background: #6a7a6a; }
.panel-layer-4 { background: rgba(106,122,106,0.05); }

.layer-label {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--cream);
}

.layer-spec {
  font-size: 0.6875rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.panel-dimension {
  position: absolute;
  bottom: -28px;
  right: 0;
  font-size: 0.6875rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  font-family: 'DM Sans', monospace;
  opacity: 0.7;
}

/* === ANATOMY === */
.anatomy {
  max-width: 1200px;
  margin: 0 auto;
  padding: 96px 24px;
  border-bottom: 1px solid var(--line);
}

.anatomy-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 48px;
}

.anatomy-cross-section {
  max-width: 680px;
  margin-bottom: 40px;
}

.layer {
  border-left: 3px solid;
  padding: 20px 28px;
  margin-bottom: 4px;
  position: relative;
}

.layer::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
}

.layer-1 { border-color: #c4963a; background: rgba(196,150,58,0.06); }
.layer-2 { border-color: #8a5fa8; background: rgba(138,95,168,0.06); }
.layer-3 { border-color: #4a8fa8; background: rgba(74,143,168,0.06); }
.layer-4 { border-color: #6a7a6a; background: rgba(106,122,106,0.06); }

.layer-name {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--cream);
  margin-bottom: 6px;
}

.layer-desc {
  font-size: 0.875rem;
  color: var(--fg-dim);
}

.anatomy-caption {
  font-size: 0.9375rem;
  color: var(--muted);
  font-style: italic;
  font-family: 'Fraunces', Georgia, serif;
}

/* === FEATURES === */
.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 96px 24px;
  border-bottom: 1px solid var(--line);
}

.features-header {
  margin-bottom: 64px;
}

.features-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.features-title {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--cream);
  line-height: 1.2;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2px;
  border: 1px solid var(--line);
}

.feature-card {
  background: var(--bg-card);
  padding: 40px 36px;
}

.feature-icon {
  color: var(--accent);
  margin-bottom: 24px;
}

.feature-name {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--cream);
  margin-bottom: 12px;
}

.feature-body {
  font-size: 0.9375rem;
  color: var(--fg-dim);
  line-height: 1.65;
}

/* === DIFFERENTIATOR === */
.diff {
  max-width: 1200px;
  margin: 0 auto;
  padding: 96px 24px;
  border-bottom: 1px solid var(--line);
}

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

.diff-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.diff-title {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 400;
  color: var(--cream);
}

.diff-table {
  max-width: 760px;
  width: 100%;
}

.diff-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  border-bottom: 1px solid var(--line);
  align-items: center;
}

.diff-row-head {
  border-bottom: 1px solid rgba(240,235,224,0.15);
}

.diff-col {
  padding: 16px 12px;
  font-size: 0.875rem;
  color: var(--fg-dim);
}

.diff-col-name {
  color: var(--cream);
  font-weight: 500;
}

.diff-col-name {
  padding-left: 0;
}

.diff-col:last-child, .diff-col:nth-child(2) {
  padding-right: 0;
}

.diff-col-head {
  font-size: 0.8125rem;
  color: var(--muted);
}

.diff-col-ts {
  color: var(--cream);
  font-weight: 600;
  background: rgba(232,168,73,0.07);
}

.check { color: #5cb85c; font-weight: 600; }
.no { color: #888; }
.partial { color: #e8a849; font-weight: 600; }

/* === SPECS === */
.specs {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  border-bottom: 1px solid var(--line);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2px;
}

.spec-block {
  background: var(--bg-card);
  padding: 40px 32px;
  text-align: center;
}

.spec-value {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 8px;
}

.spec-label {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.4;
}

/* === MANIFESTO === */
.manifesto {
  max-width: 1200px;
  margin: 0 auto;
  padding: 96px 24px;
}

.manifesto-inner {
  max-width: 680px;
}

.manifesto-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 32px;
}

.manifesto-quote {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 300;
  font-style: italic;
  color: var(--cream);
  line-height: 1.4;
  margin-bottom: 40px;
}

.manifesto-body {
  font-size: 1.0625rem;
  color: var(--fg-dim);
  line-height: 1.75;
  margin-bottom: 24px;
}

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--line);
  padding: 64px 24px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 16px;
}

.footer-meta {
  font-size: 0.875rem;
  color: var(--muted);
  max-width: 480px;
  line-height: 1.6;
  margin-bottom: 40px;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--muted);
  opacity: 0.5;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 72px 20px;
  }
  .hero-right { order: -1; }
  .panel-visual { max-width: 340px; }
}

@media (max-width: 768px) {
  .anatomy { padding: 64px 20px; }
  .features { padding: 64px 20px; }
  .diff { padding: 64px 20px; }
  .specs { padding: 48px 20px; }
  .manifesto { padding: 64px 20px; }

  .diff-row { grid-template-columns: 1fr 1fr 1fr 1fr; }

  .diff-col-name { display: none; }
  .diff-row-head .diff-col:first-child { display: none; }

  .layer { padding: 16px 20px; }

  .hero-badge-row { gap: 8px; }

  .feature-card { padding: 28px 24px; }

  .specs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .hero-inner { padding: 56px 20px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 12px; }
  .btn { width: 100%; justify-content: center; }
  .panel-visual { max-width: 280px; }
  .layer { padding: 14px 16px; }
  .layer-label { font-size: 0.75rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .specs-grid { grid-template-columns: repeat(2, 1fr); }
  .diff-row { grid-template-columns: 1fr 1fr 1fr 1fr; font-size: 0.75rem; }
}