/* ═══════════════════════════════════════════════════════════════════
   DataVisuals — Decision Governance Platform
   Site stylesheet · v3.0 — implements design-spec v1.1
   ═══════════════════════════════════════════════════════════════════ */


/* ─── 1.1 Color · 1.2 Type · 1.3 Spacing · 1.4 Layout · 1.5 Radii · 1.6 Motion ── */

:root {
  /* Color */
  --navy:        #1A63B0;
  --navy-deep:   #154E8C;
  --navy-soft:   #E8F0F9;
  --navy-tint:   #F4F8FC;

  --ink:         #1F2937;
  --ink-soft:    #4B5563;
  --ink-muted:   #6B7280;
  --ink-faint:   #9CA3AF;

  --rule:        #D1D5DB;
  --rule-soft:   #E5E7EB;
  --rule-faint:  #F1F2F4;

  --paper:       #FFFFFF;
  --bg:          #F4F5F7;
  --bg-warm:     #FAFAF8;

  --error:       #A32D2D;

  /* Type */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 80px;
  --space-10: 96px;

  /* Layout */
  --max-content: 1200px;
  --max-prose: 880px;
  --gutter: 32px;
  --gutter-lg: 64px;

  /* Radii */
  --radius-sm: 3px;
  --radius-md: 4px;
  --radius-lg: 6px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --dur-fast: 120ms;
  --dur-base: 140ms;
  --dur-slow: 200ms;
  --dur-reveal: 600ms;
}


/* ─── Reset & base ───────────────────────────────────────────────── */

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01';
}

img, svg { max-width: 100%; height: auto; display: block; }

a { color: var(--navy); text-decoration: none; transition: color var(--dur-fast) var(--ease); }
a:hover { color: var(--navy-deep); }

p { margin: 0 0 var(--space-4); }

h1, h2, h3, h4, h5 {
  margin: 0 0 var(--space-3);
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--ink);
  line-height: 1.2;
}

ul, ol { margin: 0 0 var(--space-4); padding-left: 1.4rem; }

hr { border: 0; border-top: 1px solid var(--rule-soft); margin: var(--space-7) 0; }


/* ─── Reveals ────────────────────────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur-reveal) var(--ease), transform var(--dur-reveal) var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}


/* ─── 10.3 Frames ────────────────────────────────────────────────── */

.frame {
  width: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.frame-narrow {
  width: 100%;
  max-width: var(--max-prose);
  margin: 0 auto;
  padding: 0 var(--gutter);
}


/* ─── 10.4 Sections ──────────────────────────────────────────────── */

.section {
  padding: var(--space-9) 0;
  border-top: 1px solid transparent;
}
.section-warm { background: var(--bg-warm); }
.section-dark { background: var(--ink); color: #E5E7EB; }
.section-tight { padding: var(--space-8) 0; }


/* ─── 10.5 Section primitives ────────────────────────────────────── */

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy);
  margin: 0 0 var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.section-eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--navy);
}

.section-dark .section-eyebrow { color: #93C5FD; }
.section-dark .section-eyebrow::before { background: #93C5FD; }

.section-h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 600;
  line-height: 1.10;
  letter-spacing: -0.022em;
  margin: 0 0 var(--space-4);
  max-width: 32ch;
  color: var(--ink);
}
.section-dark .section-h2 { color: #FFFFFF; }

.section-lede {
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 60ch;
  margin: 0 0 var(--space-5);
}
.section-dark .section-lede { color: #9CA3AF; }


/* ─── 10.1 Buttons ───────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 18px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--dur-base) var(--ease),
              border-color var(--dur-base) var(--ease),
              color var(--dur-base) var(--ease),
              transform var(--dur-base) var(--ease);
  text-decoration: none;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--navy-soft);
}
.btn:active { transform: scale(0.98); }
.btn[disabled], .btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--navy);
  color: #FFFFFF;
  border-color: var(--navy);
}
.btn-primary:hover { background: var(--navy-deep); border-color: var(--navy-deep); color: #FFFFFF; }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}
.btn-ghost:hover { color: var(--navy); border-color: var(--navy); }

.section-dark .btn-ghost { color: #FFFFFF; border-color: #4B5563; }
.section-dark .btn-ghost:hover { border-color: #FFFFFF; color: #FFFFFF; }

.btn-light {
  background: #FFFFFF;
  color: var(--ink);
  border-color: #FFFFFF;
}
.btn-light:hover { background: #F1F2F4; }

.btn-arrow::after {
  content: '→';
  display: inline-block;
  transition: transform var(--dur-base) var(--ease);
}
.btn-arrow:hover::after { transform: translateX(3px); }


/* ─── 10.2 Topbar ────────────────────────────────────────────────── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--rule-soft);
  transition: backdrop-filter var(--dur-base) var(--ease), background var(--dur-base) var(--ease);
}
.topbar.scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: 14px var(--gutter);
  max-width: var(--max-content);
  margin: 0 auto;
}

.topbar-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.topbar-brand:hover { color: var(--ink); }
.topbar-brand img { width: 26px; height: 26px; }
.topbar-brand sup {
  font-size: 9px;
  color: var(--ink-faint);
  margin-left: 1px;
  font-weight: 400;
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.topbar-nav a {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}
.topbar-nav a:hover { color: var(--navy); }
.topbar-nav a.is-active { color: var(--ink); }

.topbar-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 8px 16px;
  background: var(--navy);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--dur-base) var(--ease);
}
.topbar-cta:hover { background: var(--navy-deep); color: #FFFFFF; }
.topbar-cta::after { content: '→'; transition: transform var(--dur-base) var(--ease); }
.topbar-cta:hover::after { transform: translateX(2px); }

.topbar-toggle {
  display: none;
  width: 24px;
  height: 24px;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.topbar-toggle span {
  position: absolute;
  left: 2px;
  right: 2px;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease), top var(--dur-base) var(--ease);
}
.topbar-toggle span:nth-child(1) { top: 6px; }
.topbar-toggle span:nth-child(2) { top: 12px; }
.topbar-toggle span:nth-child(3) { top: 18px; }
.topbar-toggle[aria-expanded="true"] span:nth-child(1) { top: 12px; transform: rotate(45deg); }
.topbar-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.topbar-toggle[aria-expanded="true"] span:nth-child(3) { top: 12px; transform: rotate(-45deg); }

.topbar-drawer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--rule-soft);
  padding: var(--space-5) var(--gutter) var(--space-6);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}
.topbar-drawer.open { display: block; }
.topbar-drawer ul {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.topbar-drawer a {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
}
.topbar-drawer .topbar-cta {
  display: flex;
  justify-content: center;
  width: 100%;
  padding: 12px 16px;
}

@media (prefers-reduced-motion: reduce) {
  .topbar-drawer { transition: none; }
}


/* ─── 10.6 Callout ───────────────────────────────────────────────── */

.callout {
  background: var(--navy-soft);
  border-left: 3px solid var(--navy);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: var(--space-5) 0;
}
.callout-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  margin: 0 0 var(--space-2);
}
.callout-body {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
}
.callout-body strong { font-weight: 600; }


/* ─── 10.7 Where-grid ────────────────────────────────────────────── */

.where-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: var(--space-5);
}
.where {
  background: var(--paper);
  padding: var(--space-6) var(--space-6);
  transition: background var(--dur-base) var(--ease);
}
.where:hover { background: var(--bg-warm); }
.where-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 var(--space-3);
}
.where h4 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 var(--space-3);
}
.where p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}

.where-heading {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: var(--space-7) 0 var(--space-4);
}


/* ─── 10.8 Pillars ───────────────────────────────────────────────── */

.pillars {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: var(--space-5);
}
.pillar {
  background: var(--paper);
  padding: var(--space-6);
  transition: background var(--dur-base) var(--ease);
}
.pillar:hover { background: var(--navy-tint); }
.pillar-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  margin: 0 0 var(--space-3);
}
.pillar h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}
.pillar-role {
  font-style: italic;
  font-size: 14px;
  color: var(--ink-muted);
  margin: 0 0 var(--space-3);
}
.pillar-body {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}


/* ─── 10.9 Anatomy strip & banner ───────────────────────────────── */

.anatomy-strip {
  background: var(--navy-tint);
  border: 1px solid #DBE7F4;
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  position: relative;
  margin-top: var(--space-5);
}
.anatomy-step {
  position: relative;
  text-align: center;
  padding: 0 12px;
}
.anatomy-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  font-weight: 300;
  color: #85B7EB;
  line-height: 1;
}
.anatomy-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--navy);
  margin: 0 0 6px;
}
.anatomy-label {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--navy-deep);
}

.anatomy-strip-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  margin-top: var(--space-4);
}

.anatomy-banner {
  background: var(--navy-tint);
  border: 1px solid #DBE7F4;
  border-radius: var(--radius-md);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.anatomy-banner-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  flex-shrink: 0;
}
.anatomy-banner-steps {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.anatomy-banner-steps span {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--navy-deep);
}
.anatomy-banner-steps i {
  font-style: normal;
  color: #85B7EB;
  font-size: 14px;
}


/* ─── 10.10 Workflow index ───────────────────────────────────────── */

.workflow-index {
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: var(--space-5);
}
.workflow-row {
  display: grid;
  grid-template-columns: 60px 1fr 1.4fr 110px;
  gap: var(--space-4);
  align-items: center;
  padding: 16px 0;
  border-top: 1px solid var(--rule-faint);
  text-decoration: none;
  color: inherit;
  background: var(--paper);
  transition: background var(--dur-base) var(--ease);
}
.workflow-row:first-child { border-top: 0; }
.workflow-row:hover { background: var(--navy-tint); }

.wf-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--navy);
  padding-left: 16px;
}
.wf-name {
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  transition: color var(--dur-fast) var(--ease);
}
.workflow-row:hover .wf-name { color: var(--navy); }
.wf-desc {
  font-size: 13px;
  color: var(--ink-muted);
  text-align: right;
  max-width: 28ch;
  margin-left: auto;
  line-height: 1.45;
}
.wf-price {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  text-align: right;
  padding-right: 16px;
  min-width: 70px;
  font-feature-settings: 'tnum';
}

.workflow-row.apex {
  background: var(--navy);
  color: #FFFFFF;
  border-top-color: var(--navy-deep);
}
.workflow-row.apex .wf-num { color: #BFDBFE; }
.workflow-row.apex .wf-name { color: #FFFFFF; }
.workflow-row.apex .wf-desc { color: #BFDBFE; }
.workflow-row.apex .wf-price { color: #BFDBFE; }
.workflow-row.apex:hover { background: var(--navy-deep); }
.workflow-row.apex:hover .wf-name { color: #FFFFFF; }


/* ─── 10.11 Stat strip ───────────────────────────────────────────── */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}
.stat {
  padding: 32px 24px;
  border-left: 1px solid var(--rule-soft);
}
.stat:first-child { border-left: 0; }
.stat-num {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--navy);
  font-feature-settings: 'tnum';
  margin: 0 0 var(--space-2);
  line-height: 1;
}
.stat-label {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-muted);
  max-width: 22ch;
  margin: 0;
}


/* ─── 10.12 Pricing tiles ───────────────────────────────────────── */

.price-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-5);
}
.price-grid-3 { grid-template-columns: repeat(3, 1fr); }

.price-tile {
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}
.price-tier {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 var(--space-3);
}
.price-amount {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--navy);
  font-feature-settings: 'tnum';
  margin: 0 0 var(--space-3);
}
.price-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 var(--space-2);
}
.price-body {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 var(--space-4);
  line-height: 1.5;
  flex: 1;
}
.price-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 var(--space-4);
}

.price-tile.featured {
  background: var(--navy-deep);
  border-color: var(--navy-deep);
  color: #E5E7EB;
}
.price-tile.featured .price-tier { color: #BFDBFE; }
.price-tile.featured .price-amount { color: #FFFFFF; }
.price-tile.featured .price-name { color: #FFFFFF; }
.price-tile.featured .price-body { color: #D6E4F4; }
.price-tile.featured .price-meta { color: #BFDBFE; }


/* ─── 10.13 wf-meta ──────────────────────────────────────────────── */

.wf-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-md);
  background: var(--paper);
  margin: var(--space-5) 0 var(--space-7);
}
.wf-meta-cell {
  padding: 20px 24px;
  border-left: 1px solid var(--rule-soft);
}
.wf-meta-cell:first-child { border-left: 0; }
.wf-meta-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 var(--space-2);
}
.wf-meta-value {
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  font-feature-settings: 'tnum';
}
.wf-meta-value.is-price { color: var(--navy); }


/* ─── 10.14 FAQ ──────────────────────────────────────────────────── */

.faq {
  margin-top: var(--space-5);
  border-top: 1px solid var(--rule-soft);
}
.faq details {
  border-bottom: 1px solid var(--rule-soft);
  padding: 18px 0;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 300;
  color: var(--navy);
  transition: transform var(--dur-slow) var(--ease);
  display: inline-block;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq-body {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}


/* ─── 10.15 Forms ───────────────────────────────────────────────── */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}
.form-row .hint {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
}
.form input[type="text"],
.form input[type="email"],
.form select,
.form textarea {
  font: inherit;
  font-size: 15px;
  height: 44px;
  padding: 0 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  color: var(--ink);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.form textarea {
  height: auto;
  min-height: 120px;
  padding: 12px 14px;
  resize: vertical;
  line-height: 1.5;
}
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px var(--navy-soft);
}
.form input.invalid,
.form select.invalid,
.form textarea.invalid {
  border-color: var(--error);
}
.form .field-error {
  font-size: 12.5px;
  color: var(--error);
}
.form-check {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.form-check input { margin-top: 3px; }

.form-thanks {
  background: var(--navy-soft);
  border: 1px solid var(--navy);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}
.form-thanks h3 {
  font-size: 17px;
  margin: 0 0 var(--space-2);
  color: var(--navy-deep);
}
.form-thanks p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-soft);
}


/* ─── 10.16 Prose ────────────────────────────────────────────────── */

.prose {
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink);
}
.prose > * { max-width: 68ch; }
.prose .frame-narrow > *,
.prose .anatomy-strip,
.prose .callout { max-width: none; }
.prose h2 {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.018em;
  line-height: 1.2;
  margin: 48px 0 var(--space-3);
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 32px 0 var(--space-2);
}
.prose p { margin: 0 0 var(--space-4); }
.prose ul, .prose ol { margin: 0 0 var(--space-4); padding-left: 1.4rem; }
.prose li { margin: 0 0 6px; }
.prose a {
  text-decoration: underline;
  text-decoration-color: var(--navy-soft);
  text-underline-offset: 2px;
}
.prose a:hover {
  text-decoration-color: var(--navy);
}


/* ─── 10.17 Page header ──────────────────────────────────────────── */

.page-header {
  background: var(--bg-warm);
  border-bottom: 1px solid var(--rule-soft);
  padding: 64px 0 48px;
}
.page-header-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy);
  margin: 0 0 var(--space-3);
}
.page-header h1 {
  font-size: clamp(34px, 4.4vw, 52px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 0 0 var(--space-4);
  max-width: 22ch;
}
.page-header-lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
  max-width: 56ch;
}
.page-header-status {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: 1px solid var(--rule-soft);
  display: inline-block;
}


/* ─── 10.18 Tags ─────────────────────────────────────────────────── */

.tag {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--navy-soft);
  color: var(--navy);
  border-radius: var(--radius-sm);
  vertical-align: middle;
}
.tag.apex {
  background: rgba(255, 255, 255, 0.18);
  color: #FFFFFF;
}


/* ─── 10.19 Tables in prose ─────────────────────────────────────── */

.t {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  margin: var(--space-5) 0;
  border: 1px solid var(--rule-soft);
}
.t thead th {
  background: var(--navy-deep);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 10px 14px;
  text-align: left;
  border: 0;
}
.t tbody td {
  padding: 12px 14px;
  border-top: 1px solid var(--rule-soft);
  vertical-align: top;
}
.t tbody tr:nth-child(even) td { background: var(--bg-warm); }
.t .col-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--navy);
  width: 50px;
}
.t .col-price {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--navy);
  text-align: right;
  font-feature-settings: 'tnum';
  white-space: nowrap;
  width: 110px;
}
.t tr.is-apex td { font-weight: 600; }


/* ─── 4.1 Hero ───────────────────────────────────────────────────── */

.hero {
  position: relative;
  padding: 96px 0 64px;
  border-bottom: 1px solid var(--rule-soft);
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, var(--rule-faint) 1px, transparent 1px);
  background-size: 80px 100%;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, black 20%, black 80%, transparent 100%);
          mask-image: linear-gradient(to bottom, transparent 0, black 20%, black 80%, transparent 100%);
  opacity: 0.6;
}
.hero-inner { position: relative; }
.hero h1 {
  font-size: clamp(40px, 5.4vw, 64px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 var(--space-5);
  max-width: 18ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--navy);
  font-weight: 600;
}
.hero-lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 0 var(--space-6);
}
.hero-ctas {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}


/* ─── Architecture page bits ────────────────────────────────────── */

.arch-divider {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-align: center;
  margin: var(--space-5) 0 var(--space-3);
}

.arch-flow-arrow {
  color: var(--navy);
  text-align: center;
  font-size: 16px;
  margin: var(--space-3) 0;
  line-height: 1;
}

.arch-apex {
  background: var(--navy);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-4);
}
.arch-apex .apex-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #BFDBFE;
  margin-bottom: 4px;
}
.arch-apex h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 500;
  color: #FFFFFF;
}
.arch-apex .apex-sub {
  font-size: 12px;
  color: #BFDBFE;
}

.arch-ops {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.arch-ops-tile {
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}
.arch-ops-num {
  display: inline-block;
  background: var(--navy-soft);
  color: var(--navy);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  padding: 2px 5px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}
.arch-ops-name {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
  margin: 0 0 4px;
}
.arch-ops-trans {
  font-size: 11px;
  color: var(--ink-muted);
  margin: 0;
}

.arch-platform {
  background: var(--navy-tint);
  border: 1px solid #DBE7F4;
  border-radius: var(--radius-md);
  padding: 16px;
}
.arch-platform-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.arch-platform-head .h {
  font-size: 13px;
  font-weight: 500;
  color: var(--navy-deep);
}
.arch-platform-head .m {
  font-size: 11px;
  color: var(--ink-muted);
}
.arch-platform-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}
.arch-pillar {
  background: var(--paper);
  border: 1px solid #DBE7F4;
  border-radius: var(--radius-sm);
  padding: 12px 8px;
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
}

.arch-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.arch-source {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  border: 1px solid var(--rule-soft);
  border-radius: 999px;
  padding: 4px 10px;
  background: var(--paper);
}

.arch-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  border-top: 1px solid var(--rule-soft);
  padding-top: var(--space-5);
  margin-top: var(--space-5);
}
.arch-note h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
}
.arch-note p {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}


/* ─── Two-col reading zone ──────────────────────────────────────── */

.two-col {
  display: grid;
  grid-template-columns: 6fr 4fr;
  gap: var(--gutter-lg);
  margin-top: var(--space-6);
  align-items: stretch;
}
.two-col > * { display: flex; flex-direction: column; min-width: 0; }
.two-col h2 { font-size: 22px; font-weight: 600; margin: 0 0 var(--space-4); }
.two-col h3 { font-size: 16px; font-weight: 600; margin: var(--space-5) 0 var(--space-2); }
.two-col h3:first-of-type { margin-top: var(--space-2); }
.two-col .t { margin-top: 0; }
.two-col p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0 0 var(--space-3);
}
.two-col .callout { margin-top: auto; }

.center-ctas {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-7);
}


/* ─── Footer ─────────────────────────────────────────────────────── */

.site-footer {
  background: var(--ink);
  color: #D1D5DB;
  padding: var(--space-9) 0 var(--space-5);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--gutter-lg);
}
.footer-brand h3 {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 var(--space-3);
}
.footer-brand h3 img { width: 26px; height: 26px; }
.footer-brand h3 sup { font-size: 9px; color: #6B7280; font-weight: 400; }
.footer-brand p {
  font-size: 13px;
  color: #9CA3AF;
  margin: 0;
  max-width: 32ch;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #6B7280;
  margin: 0 0 var(--space-3);
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col a {
  font-size: 13.5px;
  color: #D1D5DB;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}
.footer-col a:hover { color: #FFFFFF; }

.footer-base {
  border-top: 1px solid #374151;
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #6B7280;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.footer-base a { color: #6B7280; }
.footer-base a:hover { color: #D1D5DB; }


/* ─── Responsive ─────────────────────────────────────────────────── */

@media (max-width: 1200px) {
  :root { --gutter-lg: 48px; }
}

@media (max-width: 820px) {
  :root { --gutter: 24px; --gutter-lg: 32px; }

  .topbar-nav { display: none; }
  .topbar-toggle { display: block; }

  .arch-ops { grid-template-columns: 1fr 1fr; }
  .arch-platform-grid { grid-template-columns: 1fr 1fr; }

  .two-col { grid-template-columns: 1fr; gap: var(--space-6); }
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }

  .pillars { grid-template-columns: 1fr; }
  .where-grid { grid-template-columns: 1fr; }
  .price-grid, .price-grid-3 { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--rule-soft); }
  .anatomy-strip { grid-template-columns: 1fr; gap: 14px; padding: 20px; }
  .anatomy-step { padding-right: 0; }
  .anatomy-step:not(:last-child)::after { display: none; }
  .arch-notes { grid-template-columns: 1fr; }

  .workflow-row { grid-template-columns: 50px 1fr; padding: 14px 0; }
  .wf-desc, .wf-price { display: none; }

  .wf-meta { grid-template-columns: 1fr; }
  .wf-meta-cell { border-left: 0; border-top: 1px solid var(--rule-soft); }
  .wf-meta-cell:first-child { border-top: 0; }
}

@media (max-width: 540px) {
  :root { --gutter: 20px; }

  .hero { padding: 64px 0 48px; }
  .hero h1 { font-size: clamp(28px, 7vw, 36px); }

  .arch-ops { grid-template-columns: 1fr; }
  .arch-platform-grid { grid-template-columns: 1fr; }

  .section { padding: var(--space-8) 0; }
  .page-header { padding: 48px 0 32px; }
}


/* ─── Contact 2-col ──────────────────────────────────────────────── */

.contact-grid {
  display: grid;
  grid-template-columns: 6fr 4fr;
  gap: var(--gutter-lg);
}
.contact-aside h3 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 var(--space-4);
}
.contact-aside ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.contact-aside li small {
  display: block;
  font-size: 12px;
  color: var(--ink-muted);
  margin-bottom: 2px;
}
.contact-aside li a {
  font-size: 15px;
  font-weight: 500;
}

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
}