/* =========================================================
   SUBSTRATE — site styles
   Type:   Instrument Sans (body), Instrument Serif (italic accent), JetBrains Mono (technical)
   Palette: warm off-white surface, deep cool-ink text, single cyan accent, one dark band
   ========================================================= */

:root {
  /* Light theme — surfaces */
  --bg:           oklch(0.985 0.004 80);
  --bg-elev:     #ffffff;
  --bg-panel:    oklch(0.97 0.005 80);
  --bg-2:        oklch(0.97 0.005 80);
  --bg-3:        oklch(0.965 0.006 80);
  --bg-rule:     oklch(0.93 0.006 80);
  --bg-soft:     oklch(0.965 0.006 80);
  --rule:        oklch(0.93 0.006 80);

  /* Ink */
  --ink:         oklch(0.205 0.018 250);
  --ink-2:       oklch(0.36 0.012 250);
  --ink-3:       oklch(0.52 0.01 250);
  --ink-4:       oklch(0.68 0.008 250);
  --ink-5:       oklch(0.82 0.006 250);

  /* Accent (cool, primary hue) */
  --accent:      oklch(0.58 0.13 215);
  --accent-2:    oklch(0.46 0.13 215);
  --accent-soft: oklch(0.93 0.04 215);

  /* Accent (warm, secondary hue — used sparingly for rhythm) */
  --accent-warm:      oklch(0.62 0.12 60);
  --accent-warm-2:    oklch(0.5  0.12 60);
  --accent-warm-soft: oklch(0.94 0.04 70);

  /* States */
  --ok:          oklch(0.58 0.12 155);
  --warn:        oklch(0.72 0.14 70);
  --bad:         oklch(0.6  0.18 25);

  /* Dark band emphasis (kept as fixed-dark in light theme) */
  --dark-bg:     oklch(0.17 0.018 250);
  --dark-bg-2:   oklch(0.13 0.018 250);
  --dark-ink:    oklch(0.95 0.005 250);
  --dark-ink-2:  oklch(0.78 0.01 250);
  --dark-ink-3:  oklch(0.6  0.012 250);
  --dark-rule:   oklch(0.27 0.018 250);

  /* Type */
  --ff-sans: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --ff-serif: "Instrument Serif", "Iowan Old Style", "Apple Garamond", Georgia, serif;
  --ff-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --r-1: 6px;
  --r-2: 10px;
  --r-3: 14px;
  --shadow-sm: 0 1px 0 rgba(20,20,30,0.04), 0 1px 2px rgba(20,20,30,0.03);
  --shadow-md: 0 1px 0 rgba(20,20,30,0.04), 0 12px 28px -16px rgba(20,20,30,0.10);
}

[data-theme="dark"] {
  --bg:           oklch(0.155 0.018 250);
  --bg-elev:      oklch(0.19 0.018 250);
  --bg-panel:     oklch(0.19 0.018 250);
  --bg-2:         oklch(0.19 0.018 250);
  --bg-3:         oklch(0.22 0.018 250);
  --bg-rule:      oklch(0.28 0.018 250);
  --bg-soft:      oklch(0.22 0.018 250);
  --rule:         oklch(0.28 0.018 250);

  --ink:          oklch(0.96 0.005 250);
  --ink-2:        oklch(0.82 0.01 250);
  --ink-3:        oklch(0.64 0.012 250);
  --ink-4:        oklch(0.52 0.012 250);
  --ink-5:        oklch(0.40 0.014 250);

  --accent:       oklch(0.72 0.14 215);
  --accent-2:     oklch(0.62 0.14 215);
  --accent-soft:  oklch(0.30 0.07 215);

  --accent-warm:      oklch(0.76 0.13 65);
  --accent-warm-2:    oklch(0.66 0.13 65);
  --accent-warm-soft: oklch(0.30 0.07 65);

  /* In dark theme the "dark band" becomes a slightly elevated panel */
  --dark-bg:      oklch(0.19 0.018 250);
  --dark-bg-2:    oklch(0.22 0.018 250);
  --dark-ink:     oklch(0.96 0.005 250);
  --dark-ink-2:   oklch(0.82 0.01 250);
  --dark-ink-3:   oklch(0.62 0.012 250);
  --dark-rule:    oklch(0.32 0.018 250);

  --shadow-sm: 0 1px 0 rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 1px 0 rgba(0,0,0,0.4), 0 12px 28px -16px rgba(0,0,0,0.5);
}

/* Theme toggle button */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: var(--r-1);
  color: var(--ink-3);
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  flex-shrink: 0;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-4); background: var(--bg-2); }
.theme-toggle:focus { outline: none; }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.theme-toggle svg { width: 15px; height: 15px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* Accent washes — alternating cool/warm anchors down the page.
   Pushed harder for visible cadence. */
.section.problem {
  background-image:
    radial-gradient(60% 70% at 8% -5%, color-mix(in oklab, var(--accent) 12%, transparent), transparent 60%),
    radial-gradient(40% 50% at 100% 100%, color-mix(in oklab, var(--accent) 7%, transparent), transparent 65%);
  background-repeat: no-repeat;
}
#platform {
  background-image:
    radial-gradient(65% 60% at 95% 100%, color-mix(in oklab, var(--accent-warm) 14%, transparent), transparent 60%),
    radial-gradient(40% 45% at 0% 10%, color-mix(in oklab, var(--accent-warm) 8%, transparent), transparent 65%);
  background-repeat: no-repeat;
}
.section.deploy {
  background-image:
    radial-gradient(60% 65% at 95% 5%, color-mix(in oklab, var(--accent) 12%, transparent), transparent 60%),
    radial-gradient(45% 50% at 0% 95%, color-mix(in oklab, var(--accent) 7%, transparent), transparent 65%);
  background-repeat: no-repeat;
}
#intelligence {
  background-image:
    radial-gradient(55% 65% at 5% 95%, color-mix(in oklab, var(--accent-warm) 13%, transparent), transparent 60%),
    radial-gradient(40% 50% at 100% 5%, color-mix(in oklab, var(--accent-warm) 7%, transparent), transparent 65%);
  background-repeat: no-repeat;
}
[data-theme="dark"] .section.problem {
  background-image:
    radial-gradient(60% 70% at 8% -5%, color-mix(in oklab, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(40% 50% at 100% 100%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 65%);
}
[data-theme="dark"] #platform {
  background-image:
    radial-gradient(65% 60% at 95% 100%, color-mix(in oklab, var(--accent-warm) 18%, transparent), transparent 60%),
    radial-gradient(40% 45% at 0% 10%, color-mix(in oklab, var(--accent-warm) 11%, transparent), transparent 65%);
}
[data-theme="dark"] .section.deploy {
  background-image:
    radial-gradient(60% 65% at 95% 5%, color-mix(in oklab, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(45% 50% at 0% 95%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 65%);
}
[data-theme="dark"] #intelligence {
  background-image:
    radial-gradient(55% 65% at 5% 95%, color-mix(in oklab, var(--accent-warm) 17%, transparent), transparent 60%),
    radial-gradient(40% 50% at 100% 5%, color-mix(in oklab, var(--accent-warm) 11%, transparent), transparent 65%);
}
[data-theme="dark"] .section.cta-section {
  background-image:
    radial-gradient(70% 70% at 50% 0%, color-mix(in oklab, var(--accent) 20%, transparent), transparent 65%);
  background-color: var(--dark-bg);
}

/* ----- base ----- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ff-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
em { font-family: var(--ff-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }
button { font: inherit; cursor: pointer; }

.wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ----- shared atoms ----- */
.mono, .mono-label {
  font-family: var(--ff-mono);
  font-feature-settings: "ss01" on, "calt" off;
}
.mono-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-3);
}
.dim { color: var(--ink-4); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--ff-sans);
  font-weight: 500;
  padding: 10px 16px;
  border-radius: var(--r-1);
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.05s ease;
  white-space: nowrap;
}
.btn .arrow { transition: transform 0.15s ease; }
.btn:hover .arrow { transform: translateX(2px); }
.btn-lg { padding: 13px 20px; font-size: 15px; }
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-primary:hover { background: oklch(0.27 0.022 250); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--bg-rule);
}
.btn-ghost:hover { border-color: var(--ink-4); background: var(--bg-elev); }

.link-quiet {
  color: var(--ink-2);
  border-bottom: 1px solid var(--bg-rule);
  padding-bottom: 1px;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 500;
}
.link-quiet:hover { color: var(--ink); border-color: var(--ink-3); }
.link-quiet .arrow { font-family: var(--ff-mono); }

.tag {
  display: inline-block;
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 6px;
  margin-left: 6px;
  background: var(--accent-soft);
  color: var(--accent-2);
  border-radius: 3px;
  vertical-align: 2px;
}
.tag.draft {
  background: oklch(0.93 0.03 70);
  color: oklch(0.42 0.1 70);
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 90%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--bg-rule);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 62px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand-mark { color: var(--ink); display: inline-flex; }
.brand-word { font-family: var(--ff-mono); font-weight: 700; font-size: 17px; letter-spacing: 0.08em; text-transform: lowercase; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: 12px;
  flex: 1;
}
.nav-links a {
  font-size: 14px;
  color: var(--ink-2);
  font-weight: 500;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--ink); }

.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-cta .link-quiet { border: none; padding: 0; font-size: 14px; }
.nav-cta .btn-primary { padding: 8px 14px; font-size: 13px; }

/* ── HAMBURGER / MOBILE NAV ── */
.nav-open-cb { display: none; }
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: var(--r-1);
  transition: background 0.15s;
}
.nav-burger:hover { background: var(--bg-soft); }
.nav-burger span {
  display: block;
  height: 1.5px;
  width: 20px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.15s ease;
  transform-origin: center;
}
.nav-open-cb:checked ~ .nav-burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-open-cb:checked ~ .nav-burger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-open-cb:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── COL-SPLIT — 2-col availability grid, stacks on mobile ── */
.col-split { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(70% 55% at 85% 8%, color-mix(in oklab, var(--accent) 22%, transparent), transparent 60%),
    radial-gradient(55% 45% at 6% 92%, color-mix(in oklab, var(--accent-warm) 16%, transparent), transparent 65%),
    var(--bg);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--ink) 6%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--ink) 6%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
  mask-image: radial-gradient(85% 70% at 50% 30%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(85% 70% at 50% 30%, black 0%, transparent 75%);
  opacity: 0.55;
}
[data-theme="dark"] .hero::before {
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--accent) 12%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--accent) 12%, transparent) 1px, transparent 1px);
  opacity: 0.4;
}
.hero > .wrap { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}
.hero-copy { padding-top: 8px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  background: var(--bg-elev);
  border: 1px solid var(--bg-rule);
  padding: 5px 10px;
  border-radius: 999px;
  margin-bottom: 28px;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--ok) 20%, transparent);
}

.display {
  font-size: clamp(44px, 6vw, 80px);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin: 0 0 28px;
  font-weight: 600;
  color: var(--ink);
  max-width: 14ch;
  text-wrap: pretty;
}
.display em { font-size: 0.78em; font-family: var(--ff-sans); font-style: normal; font-weight: 400; color: var(--ink-2); letter-spacing: -0.02em; display: block; margin-top: 6px; line-height: 1.2; }

.lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 54ch;
  margin: 0 0 32px;
}

.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }

.hero-pillars { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0 0 32px; }
.hero-pillars-label { font-size: 11px; font-family: var(--ff-mono); text-transform: uppercase; letter-spacing: 0.07em; color: var(--ink-4); margin-right: 4px; white-space: nowrap; }
.hero-pillar { font-size: 13px; font-weight: 500; color: var(--accent-2); background: var(--accent-soft); border: 1px solid color-mix(in oklab, var(--accent) 22%, transparent); border-radius: 4px; padding: 3px 9px; white-space: nowrap; }

.hero-meta {
  list-style: none;
  margin: 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--bg-rule);
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px 24px;
}
.hero-meta li {
  font-size: 14px;
  color: var(--ink-2);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* hero visual ----- */
.hero-vis {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hv-card {
  background: var(--bg-elev);
  border: 1px solid color-mix(in oklab, var(--accent) 28%, var(--bg-rule));
  border-radius: var(--r-2);
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent) 10%, transparent),
    0 20px 50px -22px color-mix(in oklab, var(--accent) 35%, transparent),
    0 12px 28px -16px rgba(20,20,30,0.18);
  overflow: hidden;
  font-size: 13px;
  position: relative;
}
.hv-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--r-2);
  padding: 1px;
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--accent) 50%, transparent) 0%,
    transparent 40%,
    transparent 60%,
    color-mix(in oklab, var(--accent-warm) 30%, transparent) 100%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.hv-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--bg-rule);
  background: var(--bg-soft);
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--ink-3);
}
.hv-head .hv-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg-rule);
}
.hv-head .hv-dot:nth-child(2) { background: oklch(0.85 0.02 70); }
.hv-head .hv-dot:nth-child(3) { background: oklch(0.86 0.02 155); }
.hv-title { margin-left: 8px; color: var(--ink-2); }
.hv-tail { margin-left: auto; color: var(--ink-3); }

.hv-body { padding: 6px 0; }
.hv-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 0.9fr 1.2fr;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-top: 1px solid var(--bg-rule);
}
.hv-row:first-child { border-top: none; }
.hv-row-head {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: 6px;
  padding-bottom: 6px;
  border-top: none;
  background: transparent;
}
.hv-name { font-weight: 500; }

.state {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  width: fit-content;
}
.state::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.state-active { color: var(--ok); background: color-mix(in oklab, var(--ok) 14%, transparent); }
.state-drain  { color: var(--warn); background: color-mix(in oklab, var(--warn) 16%, transparent); }
.state-susp   { color: var(--ink-3); background: var(--bg-soft); }

.bar {
  position: relative;
  height: 18px;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  border-radius: 3px;
  overflow: hidden;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  padding: 0 6px;
}
.bar i {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  background: color-mix(in oklab, var(--accent) 18%, transparent);
  border-right: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
}
.bar b { position: relative; font-weight: 500; }

.hv-foot {
  padding: 10px 14px 12px;
  border-top: 1px solid var(--bg-rule);
  background: var(--bg-soft);
  display: grid;
  gap: 4px;
}
.hv-foot-row { display: flex; align-items: baseline; gap: 12px; font-size: 12px; }
.hv-foot-row .mono-label { width: 50px; flex-shrink: 0; }
.evt { color: var(--ink-2); font-size: 11.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.evt b { font-weight: 600; padding: 1px 5px; border-radius: 2px; margin-right: 4px; font-family: var(--ff-mono); font-size: 10.5px; }
.evt b.ok   { color: var(--ok);   background: color-mix(in oklab, var(--ok) 14%, transparent); }
.evt b.warn { color: var(--warn); background: color-mix(in oklab, var(--warn) 16%, transparent); }
.evt b.bad  { color: var(--bad);  background: color-mix(in oklab, var(--bad) 14%, transparent); }

.hv-callout {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-soft);
  border: 1px dashed var(--bg-rule);
  border-radius: var(--r-2);
  font-size: 13px;
  color: var(--ink-2);
}

/* trust strip */
.trust {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--bg-rule);
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 36px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--ff-sans);
  color: var(--ink-3);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.005em;
}

/* ============================================================
   SECTION SCAFFOLDING
   Sections separate by alternating surface tone, not hairlines.
   Hero is type-position 1; .section elements alternate from there.
   ============================================================ */
.section { padding: 96px 0; background: var(--bg); position: relative; }
body > section.section:nth-of-type(even) { background: var(--bg-2); }
.section.dark { background: var(--dark-bg); }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head .kicker { margin-bottom: 18px; }

/* Warm-keyed sections: kicker label takes the secondary accent so the
   page reads as a cool/warm cadence rather than one note. */
#platform .section-head .kicker .mono-label,
#intelligence .section-head .kicker .mono-label {
  color: var(--accent-warm-2);
}
[data-theme="dark"] #platform .section-head .kicker .mono-label,
[data-theme="dark"] #intelligence .section-head .kicker .mono-label {
  color: var(--accent-warm);
}
.h-display {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 0 0 24px;
  text-wrap: pretty;
}
.h-display em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-2);
  letter-spacing: -0.015em;
  display: block;
  margin-top: 10px;
  font-size: 0.85em;
}
[data-theme="dark"] .h-display em { color: var(--accent); }
#platform .h-display em,
#intelligence .h-display em { color: var(--accent-warm-2); }
[data-theme="dark"] #platform .h-display em,
[data-theme="dark"] #intelligence .h-display em { color: var(--accent-warm); }
.section-lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 62ch;
  margin: 0;
}

/* ============================================================
   PROBLEM
   ============================================================ */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 0;
  border-top: 1px solid var(--bg-rule);
  border-left: 1px solid var(--bg-rule);
}
.prob {
  padding: 32px 28px 36px;
  border-right: 1px solid var(--bg-rule);
  border-bottom: 1px solid var(--bg-rule);
  background: transparent;
  transition: background 0.2s ease;
}
.prob:hover { background: var(--bg-soft); }
.prob .mono-label { display: block; margin-bottom: 18px; }
.prob h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.prob p { margin: 0; color: var(--ink-2); font-size: 15px; line-height: 1.55; }

/* ============================================================
   ARCHITECTURE
   ============================================================ */
.arch-diagram {
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-3);
  background: var(--bg-elev);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 14px;
}
.arch-box {
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-2);
  padding: 22px 22px 22px;
  background: var(--bg-soft);
  position: relative;
}
.arch-control-center {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.arch-control-center .arch-num { background: rgba(255,255,255,0.1); color: var(--bg); }
.arch-control-center .arch-sub { color: var(--ink-5); }
.arch-control-center .cell { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12); color: var(--bg); }
.arch-control-center .cell span { color: var(--ink-5); }
.arch-control-center .cell .tag { background: rgba(255,255,255,0.1); color: var(--bg); }

.arch-box-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.arch-num {
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 3px 7px;
  background: var(--bg);
  border: 1px solid var(--bg-rule);
  color: var(--ink-3);
  border-radius: 3px;
  align-self: center;
}
.arch-box-head h3 {
  font-size: 22px;
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.arch-sub {
  color: var(--ink-3);
  font-size: 14px;
}
.arch-cells {
  display: grid;
  gap: 12px;
}
.arch-cells.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.arch-cells.four  { grid-template-columns: repeat(4, minmax(0,1fr)); }
.cell {
  padding: 14px 14px 16px;
  background: var(--bg);
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-1);
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.cell b {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.cell span {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.45;
}

.arch-arrow {
  text-align: center;
  font-family: var(--ff-mono);
  color: var(--ink-4);
  font-size: 14px;
  line-height: 1;
  padding: 2px 0;
}
.arch-envelope {
  margin-top: 6px;
  padding: 14px 18px;
  border: 1px dashed var(--bg-rule);
  border-radius: var(--r-2);
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  background: var(--bg);
}
.envelope-tiers {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--ink-2);
}
.envelope-tiers b { font-weight: 600; color: var(--ink); margin-right: 4px; }
.envelope-tiers .sep { color: var(--ink-4); }

.arch-foundation { background: oklch(0.97 0.013 215); }
.arch-evidence   { background: oklch(0.965 0.012 70); }

.arch-foot {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 18px;
  color: var(--ink-3);
  font-size: 13px;
}
.legend { display: inline-flex; align-items: center; gap: 8px; }
.legend .tag { margin: 0; }

/* ============================================================
   ROLES
   ============================================================ */
.role-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 0;
  border-top: 1px solid var(--bg-rule);
  border-left: 1px solid var(--bg-rule);
}
.role-list-three {
  grid-template-columns: repeat(3, minmax(0,1fr));
}
.role {
  padding: 34px 32px 36px;
  border-right: 1px solid var(--bg-rule);
  border-bottom: 1px solid var(--bg-rule);
}
.role header { margin-bottom: 18px; }
.role .mono-label { display: block; margin-bottom: 10px; }
.role h3 {
  font-size: 22px;
  letter-spacing: -0.015em;
  font-weight: 600;
  margin: 0;
  line-height: 1.2;
  max-width: 28ch;
  text-wrap: pretty;
}
.role-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.role-points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.5;
}
.role-points li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.7em;
  width: 10px; height: 1px;
  background: var(--ink-4);
}

/* ============================================================
   COMPARE
   ============================================================ */
.compare-wrap {
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-2);
  background: var(--bg-elev);
  overflow: hidden;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: var(--shadow-sm);
}
.compare {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 13.5px;
}
.compare th, .compare td {
  padding: 14px 14px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--bg-rule);
}
.compare thead th {
  background: var(--bg-soft);
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
  white-space: nowrap;
  padding-top: 14px;
  padding-bottom: 14px;
  line-height: 1.3;
}
.compare thead th.us-col {
  color: var(--ink);
  background: color-mix(in oklab, var(--accent) 12%, var(--bg-soft));
  border-bottom: 2px solid var(--accent);
}
.compare .cap-col { width: 32%; }
.compare tr.group td {
  background: var(--bg);
  border-bottom: 1px solid var(--bg-rule);
  padding-top: 18px;
  padding-bottom: 8px;
}
.compare tr.group .mono-label { color: var(--ink); font-size: 11px; }
.compare tbody td:first-child { color: var(--ink); font-weight: 500; }
.compare tbody tr:hover td { background: var(--bg-soft); }
.compare tbody tr:hover td.us { background: color-mix(in oklab, var(--accent) 14%, var(--bg-soft)); }

.cell-yes, .cell-no, .cell-partial {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}
.cell-yes::before { content: "●"; color: var(--ok); }
.cell-yes.us { font-weight: 600; color: var(--ink); }
.cell-yes.us::before { color: var(--accent); }
.cell-no { color: var(--ink-4); }
.cell-no::before { content: "—"; color: var(--ink-5); font-family: var(--ff-mono); }
.cell-partial { color: var(--warn); }
.cell-partial::before { content: "◐"; color: var(--warn); }

td.us { background: color-mix(in oklab, var(--accent) 6%, transparent); }

.compare-foot {
  margin-top: 22px;
  font-size: 14px;
  color: var(--ink-3);
  max-width: 90ch;
  line-height: 1.5;
}
.compare-foot .emph { color: var(--ink-2); }

/* ============================================================
   DEPLOY TIERS
   ============================================================ */
.tiers {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 20px;
}
.tier {
  background: var(--bg-elev);
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-2);
  padding: 28px 26px 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}
.tier-feature {
  border-color: var(--ink);
  background: var(--bg);
  position: relative;
}
.tier-feature::after {
  content: "Primary configuration for regulated buyers";
  position: absolute;
  top: -12px; left: 22px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: uppercase;
}
.tier header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.tier-tag {
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  padding: 3px 7px;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  border-radius: 3px;
}
.tier h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
}
.tier p {
  color: var(--ink-2);
  font-size: 15px;
  margin: 0;
  line-height: 1.55;
}
.tier-spec {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--bg-rule);
  display: grid;
  gap: 8px;
}
.tier-spec li {
  display: grid;
  grid-template-columns: 38% 1fr;
  gap: 12px;
  font-size: 13px;
}
.tier-spec li span:first-child {
  font-family: var(--ff-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  align-self: center;
}
.tier-spec li span:last-child { color: var(--ink-2); }

/* ============================================================
   DARK BAND — HOW IT FITS
   ============================================================ */
.dark {
  background: var(--dark-bg);
  color: var(--dark-ink);
}
.dark .h-display { color: var(--dark-ink); }
.section-head.dark .kicker .mono-label { color: var(--dark-ink-3); }
.section-head.dark .section-lede { color: var(--dark-ink-2); }
.dark .h-display em { color: var(--dark-ink-2); }

.fit-diagram {
  display: grid;
  gap: 16px;
}
.fit-row {
  background: var(--dark-bg-2);
  border: 1px solid var(--dark-rule);
  border-radius: var(--r-2);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.fit-row .mono-label { color: var(--dark-ink-3); }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  font-family: var(--ff-mono);
  font-size: 12px;
  padding: 5px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--dark-rule);
  border-radius: 999px;
  color: var(--dark-ink-2);
}
.chips-dim .chip { color: var(--dark-ink-3); }

.fit-arrow {
  text-align: center;
  font-family: var(--ff-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dark-ink-3);
  padding: 2px 0;
}

.fit-row-substrate {
  padding: 0;
  background: transparent;
  border: none;
}
.fit-substrate-card {
  width: 100%;
  border: 1px solid var(--accent);
  background:
    radial-gradient(60% 80% at 50% 0%, color-mix(in oklab, var(--accent) 18%, transparent), transparent 70%),
    var(--dark-bg-2);
  border-radius: var(--r-2);
  padding: 22px 24px 24px;
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--accent) 24%, transparent),
              0 24px 60px -30px color-mix(in oklab, var(--accent) 60%, transparent);
}
.fit-sub-head {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--dark-ink-3);
  margin-bottom: 16px;
}
.fit-sub-head .mono { color: var(--dark-ink); }
.fit-sub-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
}
.fit-sub-grid > div {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--dark-rule);
  border-radius: var(--r-1);
  padding: 14px;
}
.fit-sub-grid b { display: block; font-size: 14.5px; font-weight: 600; margin-bottom: 4px; color: var(--dark-ink); }
.fit-sub-grid span { font-size: 12.5px; color: var(--dark-ink-3); line-height: 1.45; }

/* ============================================================
   COMPLIANCE
   ============================================================ */
.comp-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 0;
  border-top: 1px solid var(--bg-rule);
  border-left: 1px solid var(--bg-rule);
}
.comp {
  padding: 28px 24px 30px;
  border-right: 1px solid var(--bg-rule);
  border-bottom: 1px solid var(--bg-rule);
  background: transparent;
}
.comp .mono-label { display: block; margin-bottom: 10px; }
.comp h3 {
  font-size: 22px;
  letter-spacing: -0.015em;
  font-weight: 600;
  margin: 0 0 8px;
}
.comp p { font-size: 13.5px; color: var(--ink-3); margin: 0; line-height: 1.5; }
.comp .tag { vertical-align: 1px; }

/* ============================================================
   OPEN CORE
   ============================================================ */
.oc-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 24px;
}
.oc-card {
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-2);
  padding: 32px 32px 30px;
  background: var(--bg-elev);
  display: flex;
  flex-direction: column;
  gap: 22px;
  box-shadow: var(--shadow-sm);
}
.oc-card header { display: flex; flex-direction: column; gap: 12px; }
.oc-tag {
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 4px 9px;
  border-radius: 3px;
  width: fit-content;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  color: var(--ink-3);
}
.oc-open .oc-tag { color: var(--ok); border-color: color-mix(in oklab, var(--ok) 30%, var(--bg-rule)); }
.oc-commercial { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.oc-commercial h3 { color: var(--bg); }
.oc-commercial p, .oc-commercial ul span { color: var(--ink-5) !important; }
.oc-commercial ul b { color: var(--bg); }
.oc-commercial .oc-tag { color: var(--bg); background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.18); }
.oc-commercial .link-quiet { color: var(--bg); border-color: rgba(255,255,255,0.25); }
.oc-commercial .link-quiet:hover { border-color: var(--bg); }

.oc-card h3 {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
}
.oc-card header p { margin: 0; color: var(--ink-2); font-size: 15px; }
.oc-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.oc-card ul li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--bg-rule);
  padding-top: 14px;
}
.oc-commercial ul li { border-top-color: rgba(255,255,255,0.1); }
.oc-card ul b { font-size: 15px; font-weight: 600; letter-spacing: -0.005em; }
.oc-card ul span { font-size: 13.5px; color: var(--ink-3); line-height: 1.5; }

/* ============================================================
   ROADMAP
   ============================================================ */
.phases {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0,1fr));
  gap: 0;
  counter-reset: phase;
  border-top: 1px solid var(--bg-rule);
  border-left: 1px solid var(--bg-rule);
}
.phase {
  padding: 26px 22px 28px;
  border-right: 1px solid var(--bg-rule);
  border-bottom: 1px solid var(--bg-rule);
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: transparent;
  position: relative;
}
.phase header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.phase-num {
  font-size: 11px;
  letter-spacing: 0.06em;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  padding: 3px 7px;
  border-radius: 3px;
  color: var(--ink-3);
}
.phase-when {
  font-size: 11px;
  color: var(--ink-3);
}
.phase h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.phase p { margin: 0; font-size: 13.5px; color: var(--ink-3); line-height: 1.5; }

.phase-now {
  background: color-mix(in oklab, var(--accent) 8%, transparent);
  border-right-color: var(--bg-rule);
}
.phase-now .phase-num {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

/* ============================================================
   CTA
   ============================================================ */
.cta-section { padding: 96px 0; }
.cta-card {
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--r-3);
  padding: 56px 56px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  top: -40%; right: -10%;
  width: 60%; height: 180%;
  background: radial-gradient(closest-side, color-mix(in oklab, var(--accent) 40%, transparent), transparent 70%);
  pointer-events: none;
}
.cta-copy { position: relative; }
.cta-copy .mono-label { color: var(--ink-5); display: block; margin-bottom: 20px; }
.cta-copy h2 { color: var(--bg); margin-bottom: 18px; }
.cta-copy em { color: var(--bg); }
.cta-copy p { margin: 0; color: var(--ink-5); font-size: 16px; line-height: 1.55; max-width: 46ch; }

.cta-form { position: relative; }
.cta-fields { display: grid; gap: 14px; }
.cta-form label {
  display: grid;
  gap: 6px;
}
.cta-form .mono-label { color: var(--ink-5); }
.cta-form input,
.cta-form select {
  font: inherit;
  font-size: 14.5px;
  padding: 11px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--bg);
  border-radius: var(--r-1);
  outline: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.cta-form input::placeholder { color: rgba(255,255,255,0.35); }
.cta-form input:focus,
.cta-form select:focus { border-color: var(--accent); background: rgba(255,255,255,0.09); }
.cta-form select option { background: var(--ink); }
.cta-form button { margin-top: 4px; justify-content: center; }
.cta-form .btn-primary { background: var(--bg); color: var(--ink); border-color: var(--bg); }
.cta-form .btn-primary:hover { background: oklch(0.95 0.005 80); }
.cta-thanks { padding: 18px 0; }
.cta-thanks p { color: var(--ink-5); margin: 8px 0 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--bg-rule);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: 40px;
}
.footer-brand p {
  margin: 16px 0 0;
  color: var(--ink-3);
  font-size: 14px;
  max-width: 36ch;
  line-height: 1.5;
}
.footer-col h4 {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-family: var(--ff-mono);
  font-weight: 500;
  margin: 0 0 14px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.footer-col a {
  color: var(--ink-2);
  font-size: 14px;
}
.footer-col a:hover { color: var(--ink); }

.footer-foot {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--bg-rule);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
  color: var(--ink-3);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .arch-cells.four, .arch-cells.three { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .fit-sub-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .tiers { grid-template-columns: 1fr; }
  .comp-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .phases { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .role-list { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .cta-card { grid-template-columns: 1fr; padding: 36px 28px; gap: 28px; }
  .oc-split { grid-template-columns: 1fr; }
  /* hamburger */
  .nav-burger { display: flex; }
  .nav-cta { margin-left: auto; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px 12px 12px;
    background: var(--bg);
    border-bottom: 1px solid var(--bg-rule);
    box-shadow: 0 8px 24px -8px rgba(20,20,30,0.10);
    margin-left: 0;
    flex: none;
    z-index: 49;
  }
  .nav-open-cb:checked ~ .nav-links { display: flex; }
  .nav-links a { padding: 10px 12px; font-size: 15px; border-radius: var(--r-1); display: block; }
  .nav-links a:hover { background: var(--bg-soft); }
  .nav-links a[aria-current="page"] { color: var(--ink); background: var(--bg-soft); }
}

@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
  .section { padding: 64px 0; }
  .hero { padding: 48px 0; }
  .display { font-size: 40px; }
  .h-display { font-size: 28px; }
  .section-lede { font-size: 16px; }
  .lede { font-size: 16px; }
  .arch-cells.four, .arch-cells.three { grid-template-columns: 1fr; }
  .fit-sub-grid { grid-template-columns: 1fr; }
  .problem-grid, .comp-grid, .phases { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-meta { grid-template-columns: 1fr; }
  .hv-row { grid-template-columns: 1.4fr 0.8fr 0.8fr 0.7fr 0.9fr; gap: 8px; font-size: 12px; }
  .compare thead th, .compare td { padding: 12px 10px; }
  .nav-cta .link-quiet { display: none; }
  .col-split { grid-template-columns: 1fr; }
  .nav-inner .btn { padding: 8px 12px; font-size: 13px; }
}

@media (max-width: 480px) {
  .hero-vis { display: none; }
  .display { font-size: 34px; }
  .cta-card { padding: 28px 20px; }
}

/* ============================================================
   BUILD VS BUY — section 01b
   ============================================================ */
.bvb-body { max-width: 820px; display: grid; gap: 16px; margin-bottom: 40px; }
.bvb-body p { margin: 0; font-size: 16px; color: var(--ink-2); line-height: 1.6; }
.bvb-cta { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--bg-rule); display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.bvb-cta p { margin: 0; font-size: 15px; color: var(--ink-2); max-width: 60ch; }

/* ============================================================
   IDENTITY ARCHITECTURE — within section 02
   ============================================================ */
.arch-identity {
  margin-top: 14px;
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-2);
  background: var(--bg-elev);
  padding: 28px 28px 30px;
  box-shadow: var(--shadow-sm);
}
.arch-identity-head { margin-bottom: 24px; }
.arch-identity-head .mono-label { display: block; margin-bottom: 10px; }
.arch-identity-head h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
  line-height: 1.2;
}
.arch-identity-head p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.55;
  max-width: 80ch;
}
.arch-identity-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 28px;
  border-top: 1px solid var(--bg-rule);
  padding-top: 24px;
}
.arch-identity-col > .mono-label { display: block; margin-bottom: 14px; }
.arch-identity-items { display: grid; gap: 14px; }
.arch-identity-items p {
  margin: 0;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.5;
}
.arch-identity-items strong { color: var(--ink); font-weight: 600; }
.arch-identity-items code, .arch-identity-claims code {
  font-family: var(--ff-mono);
  font-size: 11.5px;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent-2);
}
.arch-identity-claims {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.45;
}
.arch-identity-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 4px;
}
.arch-identity-split > div {
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-1);
  padding: 14px 14px 16px;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
}
.arch-identity-split strong { display: block; font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.arch-identity-split p { margin: 0; }
.arch-identity-foot {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.5;
  border-top: 1px solid var(--bg-rule);
  padding-top: 14px;
}

/* ============================================================
   ADJACENT TOOLS — bottom of compare section
   ============================================================ */
.adj-tools {
  margin-top: 32px;
  padding: 24px 26px 26px;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-2);
}
.adj-tools > .mono-label { display: block; margin-bottom: 18px; }
.adj-tool-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 16px;
  margin-bottom: 18px;
}
.adj-tool {
  background: var(--bg-elev);
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-1);
  padding: 16px 16px 18px;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.5;
}
.adj-tool strong { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.adj-tools-foot {
  font-size: 13.5px;
  color: var(--ink-3);
  margin: 0;
  line-height: 1.55;
  border-top: 1px solid var(--bg-rule);
  padding-top: 16px;
}

/* ============================================================
   PROSE — build-vs-buy page long-form layout
   ============================================================ */
.prose-page { max-width: 760px; margin: 0 auto; padding: 64px 32px 96px; }
.prose-back { display: inline-flex; align-items: center; gap: 6px; font-family: var(--ff-mono); font-size: 12px; color: var(--ink-3); margin-bottom: 48px; letter-spacing: 0.04em; }
.prose-back:hover { color: var(--ink); }
.prose-page h1 { font-size: clamp(28px, 3.2vw, 42px); font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 32px; }
.prose-page h2 { font-size: 22px; font-weight: 600; letter-spacing: -0.015em; margin: 48px 0 14px; border-top: 1px solid var(--bg-rule); padding-top: 32px; }
.prose-page h3 { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; margin: 32px 0 10px; }
.prose-page p { font-size: 16px; color: var(--ink-2); line-height: 1.65; margin: 0 0 16px; }
.prose-page p strong { color: var(--ink); font-weight: 600; }
.prose-page ul { margin: 0 0 16px; padding-left: 20px; }
.prose-page li { font-size: 16px; color: var(--ink-2); line-height: 1.6; margin-bottom: 6px; }
.prose-page .closing { font-size: 17px; font-weight: 500; color: var(--ink); font-style: italic; border-left: 3px solid var(--accent); padding-left: 16px; margin: 40px 0; }
.prose-page .prose-cta { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--bg-rule); }

@media (max-width: 1080px) {
  .arch-identity-grid { grid-template-columns: 1fr; }
  .adj-tool-cards { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .arch-identity-split { grid-template-columns: 1fr; }
  .prose-page { padding: 40px 20px 64px; }
}

/* ============================================================
   CAPABILITY TOKENS — Section 03 (homepage v3)
   ============================================================ */
.cap-tokens { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; background: var(--bg-rule); border: 1px solid var(--bg-rule); border-radius: var(--r-2); overflow: hidden; margin: 32px 0 16px; }
.cap-token { background: var(--bg-elev); padding: 22px 22px 24px; }
.cap-token h4 { font-size: 15px; font-weight: 600; color: var(--ink); margin: 0 0 8px; letter-spacing: -0.01em; }
.cap-token p { font-size: 13.5px; color: var(--ink-2); line-height: 1.5; margin: 0; }

/* ============================================================
   RUNTIME AUTHORITY — Section 05 (homepage v3, light theme)
   ============================================================ */
.auth-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin: 32px 0 24px; }
.auth-item { background: var(--bg-elev); border: 1px solid var(--bg-rule); border-radius: var(--r-2); padding: 22px 22px 24px; box-shadow: var(--shadow-sm); }
.auth-item .mono-label { display: block; margin-bottom: 10px; color: var(--accent); }
.auth-item p { margin: 0; font-size: 14px; color: var(--ink-2); line-height: 1.5; }
.auth-foot { margin: 0; font-size: 15px; color: var(--ink-2); line-height: 1.6; max-width: 72ch; padding-top: 20px; border-top: 1px solid var(--bg-rule); }

/* ============================================================
   POSITIONING TABLE — Section 06 (homepage v3)
   ============================================================ */
.pos-gaps { margin-top: 24px; padding: 20px 24px; background: var(--bg-soft); border: 1px solid var(--bg-rule); border-radius: var(--r-2); }
.pos-gaps p { margin: 0 0 8px; font-size: 14.5px; color: var(--ink-2); font-weight: 500; }
.pos-gaps ul { margin: 0; padding-left: 20px; }
.pos-gaps li { font-size: 14px; color: var(--ink-2); line-height: 1.55; margin-bottom: 6px; }

/* HERO BUILT-FOR strip */
.hero-built-for { margin-top: 20px; font-size: 13px; color: var(--ink-3); line-height: 1.6; }
.hero-built-for strong { color: var(--ink-4); font-weight: 500; font-family: var(--ff-mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; display: block; margin-bottom: 4px; }

@media (max-width: 1080px) {
  .cap-tokens { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .auth-grid { grid-template-columns: 1fr; }
  .role-list-three { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .runtime-owns-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .cap-tokens { grid-template-columns: 1fr; }
  .role-list-three { grid-template-columns: 1fr; }
}

/* ============================================================
   RUNTIME OWNS — dark band component (architecture page)
   ============================================================ */
.runtime-owns { margin-top: 28px; border: 1px solid var(--dark-rule); border-radius: var(--r-2); background: var(--dark-bg-2); padding: 28px 28px 26px; }
.runtime-owns-head { margin-bottom: 20px; }
.runtime-owns-head .mono-label { color: var(--dark-ink-3); }
.runtime-owns-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; margin-bottom: 20px; }
.runtime-owns-item { background: rgba(255,255,255,0.03); border: 1px solid var(--dark-rule); border-radius: var(--r-1); padding: 18px 18px 20px; }
.runtime-owns-label { display: block; font-size: 12px; letter-spacing: 0.04em; color: var(--accent); margin-bottom: 8px; }
.runtime-owns-item p { margin: 0; font-size: 14px; color: var(--dark-ink-2); line-height: 1.5; }
.runtime-owns-foot { margin: 0; font-size: 14px; color: var(--dark-ink-3); line-height: 1.55; padding-top: 16px; border-top: 1px solid var(--dark-rule); }

/* COMPARE DATE STAMP */
.compare-datestamp { font-size: 13px; font-family: var(--ff-mono); color: var(--ink-3); background: var(--bg-soft); border: 1px solid var(--bg-rule); border-radius: var(--r-1); padding: 8px 12px; margin-bottom: 0; line-height: 1.5; }

/* ============================================================
   AVAILABILITY BADGES — shared across all pages
   ============================================================ */
.avail-badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 500;
  vertical-align: 2px;
}
.avail-now  { background: color-mix(in oklab, var(--ok)   16%, transparent); color: var(--ok);   border: 1px solid color-mix(in oklab, var(--ok)   30%, transparent); }
.avail-next { background: color-mix(in oklab, var(--accent) 14%, transparent); color: var(--accent-2); border: 1px solid color-mix(in oklab, var(--accent) 28%, transparent); }
.avail-later  { background: color-mix(in oklab, var(--warn) 14%, transparent); color: oklch(0.52 0.1 70); border: 1px solid color-mix(in oklab, var(--warn) 28%, transparent); }
.avail-vision { background: color-mix(in oklab, oklch(0.58 0.16 300) 12%, transparent); color: oklch(0.46 0.14 300); border: 1px solid color-mix(in oklab, oklch(0.58 0.16 300) 24%, transparent); }

/* ============================================================
   HOMEPAGE PASS 2 — content blocks that had no CSS, plus rhythm accents
   ============================================================ */

/* Section kicker: small accent bar to the left of the mono label */
.section-head .kicker .mono-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.section-head .kicker .mono-label::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}
#platform .section-head .kicker .mono-label::before,
#intelligence .section-head .kicker .mono-label::before {
  background: var(--accent-warm);
}

/* ----------------------------------------------------------------
   HOW IT WORKS — six numbered steps in a 3-col stepped grid
   ---------------------------------------------------------------- */
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 0;
  border-top: 1px solid var(--bg-rule);
  border-left: 1px solid var(--bg-rule);
  margin-bottom: 28px;
}
.how-step {
  padding: 30px 28px 34px;
  border-right: 1px solid var(--bg-rule);
  border-bottom: 1px solid var(--bg-rule);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: transparent;
  transition: background 0.2s ease;
}
.how-step:hover { background: var(--bg-soft); }
.how-step-num {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 64px;
  line-height: 1;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: -0.04em;
  margin-bottom: 8px;
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
}
.how-step-num::after {
  content: "";
  width: 42px;
  height: 1px;
  background: color-mix(in oklab, var(--accent) 60%, transparent);
  align-self: center;
  margin-bottom: 18px;
}
.how-step:nth-child(even) .how-step-num { color: var(--accent-warm-2); }
.how-step:nth-child(even) .how-step-num::after { background: color-mix(in oklab, var(--accent-warm) 60%, transparent); }
[data-theme="dark"] .how-step-num { color: var(--accent); }
[data-theme="dark"] .how-step:nth-child(even) .how-step-num { color: var(--accent-warm); }
.how-step h3 {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
  line-height: 1.25;
}
.how-step h3 .avail-badge { vertical-align: 2px; margin-left: 4px; }
.how-step p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.55;
}

/* ----------------------------------------------------------------
   HOW KYC — "In practice" worked-example callout
   ---------------------------------------------------------------- */
.how-kyc {
  margin-top: 32px;
  padding: 28px 32px 30px;
  border: 1px solid var(--bg-rule);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-2);
  background: var(--bg-elev);
  box-shadow: var(--shadow-sm);
}
.how-kyc-label {
  display: block;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}
[data-theme="dark"] .how-kyc-label { color: var(--accent); }
.how-kyc p {
  margin: 0 0 12px;
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.65;
}
.how-kyc p:last-child { margin-bottom: 0; }
.how-kyc p:nth-child(2) { font-size: 16px; color: var(--ink); font-weight: 500; }
.how-kyc code {
  font-family: var(--ff-mono);
  font-size: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--ink-2);
  line-height: 1.9;
  word-spacing: -0.05em;
}

/* ----------------------------------------------------------------
   INTELLIGENCE GRID — 2x2 cards
   ---------------------------------------------------------------- */
.intel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 20px;
}
.intel-item {
  padding: 30px 30px 32px;
  background: var(--bg-elev);
  border: 1px solid var(--bg-rule);
  border-radius: var(--r-2);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.intel-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: color-mix(in oklab, var(--accent-warm) 40%, var(--bg-rule));
}
.intel-item::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg,
    var(--accent-warm) 0%,
    color-mix(in oklab, var(--accent-warm) 40%, transparent) 50%,
    transparent 100%);
}
.intel-item::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent-warm) 14%, transparent), transparent 70%);
  pointer-events: none;
}
.intel-item .mono-label {
  color: var(--accent-warm-2);
  display: block;
}
[data-theme="dark"] .intel-item .mono-label { color: var(--accent-warm); }
.intel-item h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
  line-height: 1.3;
}
.intel-item p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.6;
}
.intel-item ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.intel-item li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.55;
}
.intel-item li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.65em;
  width: 10px;
  height: 1px;
  background: var(--accent-warm);
  opacity: 0.7;
}
.intel-item code {
  font-family: var(--ff-mono);
  font-size: 11.5px;
  background: var(--bg-soft);
  border: 1px solid var(--bg-rule);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent-warm-2);
}
[data-theme="dark"] .intel-item code { color: var(--accent-warm); }

/* ----------------------------------------------------------------
   PILLAR HEADERS — full-width cap-tokens get a left accent bar
   so the five pillars read as anchors, not just larger cards.
   ---------------------------------------------------------------- */
.cap-token[style*="grid-column"] {
  position: relative;
  padding-left: 36px !important;
  padding-top: 26px !important;
  padding-bottom: 26px !important;
}
.cap-token[style*="grid-column"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 4px;
  background: linear-gradient(to bottom, var(--accent), color-mix(in oklab, var(--accent) 40%, transparent));
  border-radius: 2px;
  box-shadow: 0 0 14px color-mix(in oklab, var(--accent) 40%, transparent);
}
.cap-token[style*="grid-column"] h4 {
  font-size: 18px !important;
  font-weight: 600;
  letter-spacing: -0.015em;
}

/* ----------------------------------------------------------------
   ROADMAP — current phase pulse marker
   ---------------------------------------------------------------- */
.phase-now { overflow: hidden; }
.phase-now::after {
  content: "Now";
  position: absolute;
  top: 10px;
  right: -28px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--ff-mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 32px;
  transform: rotate(35deg);
  transform-origin: center;
  pointer-events: none;
}
[data-theme="dark"] .phase-now::after { color: var(--dark-bg); }

/* ----------------------------------------------------------------
   RESPONSIVE
   ---------------------------------------------------------------- */
@media (max-width: 1080px) {
  .how-steps { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .intel-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .how-steps { grid-template-columns: 1fr; }
  .how-kyc { padding: 22px 22px 24px; }
  .intel-item { padding: 22px 22px 24px; }
  .how-step-num { font-size: 30px; }
}

/* Print niceties */
@media print {
  .nav, .cta-section, .footer { display: none; }
  .section { page-break-inside: avoid; padding: 24px 0; }
  body { background: #fff; }
}