/* ============================================================
   Modal Master — website-v2 shared kit "site.css"
   Extracted from Flagship L "Cobalt" (owner-approved design):
   bone paper, engineering blue, bronze. Light theme only.
   One shared stylesheet for all pages; no framework, no build.
   ============================================================ */

:root {
  /* ---- Cobalt palette ---- */
  --paper: #f8f6f1;          /* bone */
  --surface: #fffefb;        /* warm white card */
  --surface-2: #fcfbf6;
  --hairline: #e6e1d4;
  --hairline-soft: rgba(24, 34, 48, 0.08);
  --ink: #182230;
  --ink-soft: #46586a;
  --muted: #7a8798;
  --faint: #a9b2be;

  --accent: #1c4dae;         /* engineering blue */
  --accent-deep: #163d8a;
  --accent-bright: #2f66d0;
  --accent-wash: rgba(28, 77, 174, 0.07);
  --accent-line: rgba(28, 77, 174, 0.22);

  --bronze: #9c6b33;         /* metallic */
  --bronze-soft: #c39a63;
  --bronze-wash: rgba(156, 107, 51, 0.10);
  --bronze-line: rgba(156, 107, 51, 0.32);

  --shadow-soft: 0 16px 44px rgba(24, 34, 48, 0.09);
  --shadow: 0 24px 74px rgba(24, 34, 48, 0.12);
  --shadow-lift: 0 34px 104px rgba(24, 34, 48, 0.16);

  --font-display: "STIX Two Text", Georgia, "Times New Roman", serif;
  --font-body: "Hanken Grotesk", ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  --font-mono: "Chivo Mono", ui-monospace, "Cascadia Mono", monospace;

  --ease-lux: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-soft: cubic-bezier(0.32, 0.72, 0.24, 1);

  --shell: 1280px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
}

body {
  overflow-x: hidden;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
img { max-width: 100%; }

::selection { background: rgba(28, 77, 174, 0.15); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ============================================================
   KIT 1 — Scroll progress bar (hairline, accent gradient)
   ============================================================ */
.scroll-progress {
  position: fixed;
  z-index: 90;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--bronze));
  transition: width 0.08s linear;
}

/* ---------- Reveal primitives ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.95s var(--ease-lux), transform 0.95s var(--ease-lux);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.is-visible { opacity: 1; transform: none; }

.reveal-line {
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 1.3s var(--ease-lux);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal-line.is-visible { transform: scaleX(1); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal-line { opacity: 1; transform: none; transition: none; }
  .marquee-track { animation: none !important; }
  .demo-cta::after { animation: none !important; }
  .scroll-cue::after { animation: none !important; }
  * { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}

/* ============================================================
   KIT 2 — Docked nav (transparent over hero, docks on scroll)
   ============================================================ */
.site-header {
  position: fixed;
  z-index: 70;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  min-height: 82px;
  padding: 18px clamp(20px, 4vw, 60px);
  border-bottom: 1px solid transparent;
  background: transparent;
  transition: min-height 0.3s var(--ease-soft), padding 0.3s var(--ease-soft),
              background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease,
              backdrop-filter 0.3s ease;
}
.site-header.is-scrolled,
.site-header.is-solid {
  min-height: 64px;
  padding-block: 10px;
  background: rgba(248, 246, 241, 0.86);
  border-bottom-color: var(--hairline);
  box-shadow: 0 10px 36px rgba(24, 34, 48, 0.07);
  backdrop-filter: blur(18px) saturate(1.15);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
  text-decoration: none;
}
.brand-lockup img { width: 46px; height: 34px; object-fit: contain; }
.brand-name { display: grid; gap: 2px; line-height: 1.02; }
.brand-name strong {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.005em;
  color: var(--ink);
}
.brand-name span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
.site-nav a {
  padding: 9px 13px;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.25s ease, color 0.25s ease;
}
.site-nav a:not(.demo-cta):hover { background: var(--accent-wash); color: var(--accent); }
.site-nav a[aria-current="page"] {
  color: var(--accent);
  font-weight: 600;
}

/* Mobile nav toggle (multi-page requirement: links must stay reachable) */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--hairline);
  border-radius: 7px;
  background: rgba(255, 254, 251, 0.8);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
}
.nav-toggle .bars {
  display: grid;
  gap: 4px;
  width: 16px;
}
.nav-toggle .bars span {
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease-lux), opacity 0.3s ease;
}
.nav-toggle[aria-expanded="true"] .bars span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bars span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ============================================================
   KIT 4 — Sticky glowing magnetic demo CTA (in nav + floating)
   ============================================================ */
.demo-cta {
  position: relative;
  isolation: isolate;
  margin-left: 10px;
  border: 1px solid var(--accent-deep);
  background: linear-gradient(180deg, var(--accent-bright), var(--accent));
  color: #fff !important;
  font-weight: 600;
  border-radius: 7px;
  box-shadow: 0 12px 26px rgba(28, 77, 174, 0.26);
  transition: transform 0.3s var(--ease-lux), box-shadow 0.3s var(--ease-lux),
              background 0.25s ease;
  will-change: transform;
}
.demo-cta::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -4px;
  border-radius: 11px;
  background: radial-gradient(60% 120% at 50% 50%, rgba(47, 102, 208, 0.55), transparent 72%);
  opacity: 0.5;
  filter: blur(9px);
  animation: demo-pulse 4.6s var(--ease-soft) infinite;
}
@keyframes demo-pulse {
  0%, 100% { opacity: 0.34; transform: scale(0.97); }
  50%      { opacity: 0.62; transform: scale(1.03); }
}
.demo-cta:hover { box-shadow: 0 18px 40px rgba(28, 77, 174, 0.36); }

/* Floating persistent demo pill (appears after hero) */
.floating-demo {
  position: fixed;
  z-index: 65;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 34px);
  opacity: 0;
  transform: translateY(18px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.4s var(--ease-lux), transform 0.4s var(--ease-lux);
}
.floating-demo.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.floating-demo a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 52px;
  padding: 0 22px;
  text-decoration: none;
}
.floating-demo a .fd-arrow { transition: transform 0.35s var(--ease-lux); }
.floating-demo a:hover .fd-arrow { transform: translateX(4px); }

/* ============================================================
   KIT 3 — Subtle cursor haze (barely-there suggestion of light)
   ============================================================ */
.cursor-haze {
  position: fixed;
  z-index: 1;
  top: 0; left: 0;
  width: 240px; height: 240px;
  margin: -120px 0 0 -120px;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(circle,
    rgba(28, 77, 174, 0.055) 0%,
    rgba(156, 107, 51, 0.03) 44%,
    transparent 70%);
  filter: blur(34px);
  opacity: 0;
  transition: opacity 0.5s ease;
  will-change: transform;
}
@media (hover: none), (pointer: coarse) { .cursor-haze { display: none; } }

/* ============================================================
   HERO — A-pattern: photo right, text-left wash
   ============================================================ */
.hero {
  position: relative;
  display: grid;
  align-items: center;
  isolation: isolate;
  min-height: 100vh;
  overflow: hidden;
  padding-top: 82px;
}
.hero-photo {
  position: absolute;
  z-index: -3;
  inset: 0;
  width: 100%;
  height: 114%;
  object-fit: cover;
  object-position: center right;
  will-change: transform;
}
/* left paper wash carrying the text over the photo */
.hero::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg,
      rgba(248, 246, 241, 0.98) 0%,
      rgba(248, 246, 241, 0.95) 30%,
      rgba(248, 246, 241, 0.60) 55%,
      rgba(248, 246, 241, 0.10) 82%,
      rgba(248, 246, 241, 0.00) 100%),
    linear-gradient(180deg,
      rgba(248, 246, 241, 0.55) 0%,
      rgba(248, 246, 241, 0.00) 34%,
      rgba(248, 246, 241, 0.00) 66%,
      rgba(248, 246, 241, 0.42) 100%);
}
/* wave canvas: sits behind the text column, low alpha */
.hero-wave {
  position: absolute;
  z-index: -1;
  left: 0;
  bottom: 0;
  width: min(72%, 900px);
  height: 46%;
  pointer-events: none;
}

.hero-copy {
  width: min(720px, calc(100vw - 40px));
  margin-left: clamp(20px, 6vw, 96px);
  padding-block: clamp(56px, 9vh, 108px);
}

/* Compact page hero for interior pages */
.hero.page-hero { min-height: min(72vh, 680px); }
.hero.page-hero .hero-copy { padding-block: clamp(48px, 7vh, 84px); }
.hero.page-hero h1 { font-size: clamp(2.5rem, 4.6vw, 4.6rem); }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--bronze);
}
.section-head.centered .eyebrow { justify-content: center; }

h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(2.9rem, 5.7vw, 6.1rem);
  font-weight: 500;
  line-height: 1.0;
  letter-spacing: -0.012em;
}
h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
}
h1 .bronze { color: var(--bronze); font-style: italic; }

.lede {
  max-width: 618px;
  margin: 26px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.25vw, 1.2rem);
  line-height: 1.68;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}
.button-primary,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.35s var(--ease-lux), box-shadow 0.35s var(--ease-lux), background 0.25s ease;
}
.button-primary {
  border: 1px solid var(--accent-deep);
  background: linear-gradient(180deg, var(--accent-bright), var(--accent));
  color: #fff;
  box-shadow: 0 14px 30px rgba(28, 77, 174, 0.22);
}
.button-primary:hover { transform: translateY(-2px); box-shadow: 0 20px 44px rgba(28, 77, 174, 0.32); }
.button-secondary {
  border: 1px solid var(--hairline);
  background: rgba(255, 254, 251, 0.7);
  color: var(--ink);
  backdrop-filter: blur(8px);
}
.button-secondary:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); border-color: var(--accent-line); }
.button-primary .arrow { transition: transform 0.35s var(--ease-lux); }
.button-primary:hover .arrow { transform: translateX(4px); }

/* Hero proof strip — mono stats with bronze ticks */
.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  max-width: 660px;
  margin-top: 46px;
  border: 1px solid var(--hairline);
  background: var(--hairline);
  box-shadow: var(--shadow-soft);
}
.proof-strip .stat {
  position: relative;
  display: grid;
  gap: 6px;
  align-content: start;
  min-height: 108px;
  padding: 18px 16px;
  background: rgba(255, 254, 251, 0.85);
  backdrop-filter: blur(10px);
}
.proof-strip .stat::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 18px; height: 2px;
  background: var(--bronze);
}
.proof-strip .stat b {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 500;
  line-height: 1;
}
.proof-strip .stat b small {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
  vertical-align: super;
  margin-left: 2px;
}
.proof-strip .stat em {
  align-self: end;
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  line-height: 1.4;
}

.scroll-cue {
  position: absolute;
  right: clamp(22px, 4vw, 54px);
  bottom: clamp(88px, 12vh, 128px);
  display: grid;
  justify-items: center;
  gap: 10px;
  color: rgba(24, 34, 48, 0.42);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
.scroll-cue::after {
  content: "";
  width: 1px;
  height: 52px;
  background: linear-gradient(180deg, var(--bronze), transparent);
  animation: cue-drop 2.6s var(--ease-lux) infinite;
}
@keyframes cue-drop {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   KIT 10 — Capability marquee (infinite seamless ticker)
   ============================================================ */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--hairline);
  background: var(--surface-2);
  padding: 17px 0;
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 52s linear infinite;
}
.marquee.is-paused .marquee-track { animation-play-state: paused; }
.marquee-track ul {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}
.marquee-track li {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 16px;
  white-space: nowrap;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.marquee-track li::after {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--bronze-soft);
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================================
   Shared section scaffolding
   ============================================================ */
.section {
  position: relative;
  padding: clamp(80px, 12vh, 148px) clamp(20px, 5vw, 72px);
}
.section-inner { width: min(var(--shell), 100%); margin-inline: auto; }
.section-head { max-width: 800px; margin-bottom: clamp(42px, 6vh, 72px); }
.section-head.centered { margin-inline: auto; text-align: center; }

.section-index {
  display: block;
  margin-bottom: 14px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.24em;
}

h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 3.5vw, 3.5rem);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.01em;
}
h2 em { font-style: italic; color: var(--accent); }
h2 .bronze { color: var(--bronze); font-style: italic; }

.section-lede {
  max-width: 664px;
  margin: 20px 0 0;
  color: var(--ink-soft);
  font-size: 1.04rem;
  line-height: 1.68;
}
.section-head.centered .section-lede { margin-inline: auto; }

.rule {
  width: 74px;
  height: 2px;
  margin: 24px 0 0;
  background: linear-gradient(90deg, var(--bronze), var(--bronze-soft));
}
.section-head.centered .rule { margin-inline: auto; }

/* ---------- Manifesto ---------- */
.manifesto {
  background:
    radial-gradient(circle at 84% 14%, var(--bronze-wash), transparent 34%),
    radial-gradient(circle at 6% 86%, var(--accent-wash), transparent 40%),
    var(--paper);
  border-block: 1px solid var(--hairline);
}
.manifesto-quote {
  max-width: 1040px;
  margin: 0 auto;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.9rem);
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
}
.manifesto-quote strong { font-weight: 600; color: var(--accent); }
.manifesto-quote .bronze-ink { color: var(--bronze); font-style: italic; }
.manifesto-attrib {
  margin-top: 32px;
  text-align: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ============================================================
   KIT 6 — Engines: A-grid (quiet cells) + KIT 5 hover bar
   ============================================================ */
.engines { background: var(--surface-2); border-block: 1px solid var(--hairline); }

.engine-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--hairline);
  background: var(--hairline);
  box-shadow: var(--shadow-soft);
}
.engine-cell {
  position: relative;
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 214px;
  padding: 27px 26px 22px;
  background: var(--surface);
  transition: background 0.4s ease, transform 0.4s var(--ease-lux);
}
.engine-cell:hover { background: var(--surface-2); }

.engine-cell::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease-lux);
}
.engine-cell:hover::after { transform: scaleX(1); }

.engine-cell i {
  color: var(--faint);
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
}
.engine-cell h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.42rem;
  font-weight: 600;
  line-height: 1.14;
}
.engine-cell p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.55;
}
.engine-cell .cite {
  align-self: end;
  margin-top: 6px;
  color: var(--bronze);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
}

/* Research badge (TOMA and any evidence-only tooling) */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-self: start;
  padding: 3px 10px;
  border: 1px solid var(--bronze-line);
  border-radius: 999px;
  background: var(--bronze-wash);
  color: var(--bronze);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.badge::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--bronze);
}

/* ============================================================
   Differentiators — editorial split rows
   ============================================================ */
.pillar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 92px);
  align-items: center;
  padding-block: clamp(54px, 8vh, 92px);
}
.pillar + .pillar { border-top: 1px solid var(--hairline); }
.pillar.flip .pillar-visual { order: 2; }

.pillar-visual { position: relative; }
.pillar-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow);
}
.pillar-visual figcaption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 8px 13px;
  border: 1px solid var(--hairline);
  background: rgba(255, 254, 251, 0.88);
  backdrop-filter: blur(10px);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.pillar-visual::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 20px -20px -20px 20px;
  border: 1px solid var(--bronze-line);
}
.pillar.flip .pillar-visual::before { inset: 20px 20px -20px -20px; }

.pillar-copy .pillar-index {
  display: block;
  margin-bottom: 15px;
  color: var(--bronze);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.24em;
}
.pillar-copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 2.7vw, 2.7rem);
  font-weight: 600;
  line-height: 1.1;
}
.pillar-copy > p {
  margin: 20px 0 0;
  color: var(--ink-soft);
  line-height: 1.72;
}
.pillar-claim {
  margin-top: 24px;
  padding: 17px 22px;
  border-left: 2px solid var(--accent);
  background: var(--accent-wash);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-style: italic;
  line-height: 1.5;
}
.pillar-points {
  display: grid;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hairline);
}
.pillar-points li {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}
.pillar-points b {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-top: 3px;
}

/* ============================================================
   Deep Estimate loop strip
   ============================================================ */
.loop-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(46px, 7vh, 78px);
  border: 1px solid var(--hairline);
  background: var(--hairline);
  box-shadow: var(--shadow-soft);
}
.loop-step {
  position: relative;
  display: grid;
  gap: 8px;
  min-height: 152px;
  padding: 22px;
  background: var(--surface);
}
.loop-step i {
  color: var(--bronze);
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
}
.loop-step b {
  font-family: var(--font-display);
  font-size: 1.14rem;
  font-weight: 600;
}
.loop-step span { color: var(--muted); font-size: 0.84rem; line-height: 1.5; }
.loop-step::after {
  content: "\2192";
  position: absolute;
  top: 20px; right: 14px;
  color: var(--faint);
  font-size: 0.9rem;
}
.loop-step:last-child::after { content: "\21BB"; color: var(--accent); }

/* ============================================================
   Validation chips
   ============================================================ */
.validation { background: var(--paper); }
.chip-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.chip {
  display: grid;
  gap: 8px;
  padding: 22px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  transition: transform 0.45s var(--ease-lux), box-shadow 0.45s var(--ease-lux), border-color 0.3s ease;
}
.chip:hover {
  transform: translateY(-4px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-soft);
}
.chip b {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.chip span { color: var(--ink-soft); font-size: 0.88rem; line-height: 1.55; }

/* ============================================================
   KIT 7 — Evidence cards + cursor-origin ripple
   ============================================================ */
.evidence { background: var(--surface-2); border-block: 1px solid var(--hairline); }
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.evidence-card {
  position: relative;
  overflow: hidden;
  display: grid;
  align-content: start;
  gap: 11px;
  padding: 26px 24px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset;
  transition: transform 0.32s var(--ease-lux), border-color 0.26s ease, box-shadow 0.32s var(--ease-lux);
}
.evidence-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at var(--rx, 50%) var(--ry, 50%),
    rgba(28, 77, 174, 0.18), rgba(156, 107, 51, 0.12) 20%, transparent 46%);
  opacity: 0;
  transform: scale(0.65);
}
.evidence-card.is-rippling::before { animation: evidence-ripple 760ms ease-out; }
@keyframes evidence-ripple {
  0%   { opacity: 0.9; transform: scale(0.55); }
  100% { opacity: 0;   transform: scale(1.6); }
}
.evidence-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-soft);
}
.evidence-card i {
  color: var(--bronze);
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
}
.evidence-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 600;
  line-height: 1.16;
}
.evidence-card p { margin: 0; color: var(--ink-soft); font-size: 0.9rem; line-height: 1.58; }
.evidence-card .value {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}
.evidence-card .value b { color: var(--bronze); font-weight: 600; }

/* ============================================================
   KIT 8 — Comparison gauges (calibrated scales, bronze ticks)
   ============================================================ */
.comparison { background: var(--paper); }
.compare-panel {
  display: grid;
  gap: 8px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: clamp(18px, 2.4vw, 30px);
}
.gauge-row {
  display: grid;
  grid-template-columns: minmax(200px, 1.2fr) repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 28px);
  align-items: center;
  padding: 15px clamp(6px, 1vw, 14px);
  border-bottom: 1px solid var(--hairline);
}
.gauge-row:last-child { border-bottom: 0; }
.gauge-row.gauge-head {
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 14px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.gauge-row.gauge-head span:first-child { color: transparent; }
.gauge-row.gauge-head .mm-head { color: var(--accent); }
.gauge-label { font-weight: 500; font-size: 0.92rem; color: var(--ink); }

.gauge { display: grid; gap: 7px; }
.gauge .track {
  position: relative;
  height: 16px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  overflow: hidden;
  background:
    repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), var(--hairline) calc(10% - 1px) 10%),
    var(--surface-2);
}
.gauge .fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--score);
  border-radius: 3px 0 0 3px;
  background: linear-gradient(90deg, rgba(122, 135, 152, 0.5), rgba(122, 135, 152, 0.72));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 1.15s var(--ease-lux);
  transition-delay: var(--fill-delay, 0ms);
}
.gauge.mm .fill { background: linear-gradient(90deg, var(--accent), var(--accent-bright)); }
.gauge .cap {
  position: absolute;
  top: 50%;
  left: var(--score);
  width: 3px; height: 22px;
  margin-left: -3px;
  background: var(--bronze);
  opacity: 0;
  transform: translateY(-50%) scaleY(0.3);
  transform-origin: center;
  transition: opacity 0.25s ease, transform 0.42s var(--ease-lux);
  transition-delay: calc(var(--fill-delay, 0ms) + 0.85s);
}
.compare-panel.is-calibrating .gauge .fill { transform: scaleX(1); }
.compare-panel.is-calibrating .gauge .cap { opacity: 1; transform: translateY(-50%) scaleY(1); }
.gauge em {
  color: var(--muted);
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.gauge.mm em { color: var(--accent); }
.compare-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

/* ============================================================
   KIT 9 — Workflow rail (fill tracks scroll, nodes activate)
   ============================================================ */
.workflow { background: var(--surface-2); border-block: 1px solid var(--hairline); }
.workflow-rail {
  position: relative;
  display: grid;
  max-width: 860px;
  margin-inline: auto;
}
.workflow-rail::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--hairline);
}
.workflow-rail .rail-progress {
  position: absolute;
  left: 27px;
  top: 12px;
  width: 1px;
  height: 0;
  background: linear-gradient(180deg, var(--accent), var(--bronze));
}
.workflow-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 26px;
  padding: 25px 0;
}
.workflow-step .node {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  background: var(--surface);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  transition: border-color 0.4s ease, color 0.4s ease, box-shadow 0.4s ease;
}
.workflow-step.is-active .node {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-wash);
}
.workflow-step .node::after {
  content: "";
  position: absolute;
  top: 6px; right: 6px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bronze);
  opacity: 0;
  transform: scale(0.4);
  transition: opacity 0.4s ease, transform 0.4s var(--ease-lux);
}
.workflow-step.is-active .node::after { opacity: 1; transform: scale(1); }
.workflow-step h3 {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 1.42rem;
  font-weight: 600;
}
.workflow-step p { margin: 0; max-width: 620px; color: var(--ink-soft); font-size: 0.94rem; line-height: 1.62; }
.workflow-step .step-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.workflow-step .step-tags span {
  padding: 5px 10px;
  border: 1px solid var(--hairline);
  background: var(--surface-2);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

/* ============================================================
   Applications gallery
   ============================================================ */
.applications { background: var(--paper); }
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.app-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.app-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform 0.7s var(--ease-lux);
}
.app-card:hover img { transform: scale(1.04); }
.app-card figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  display: grid;
  gap: 3px;
  padding: 16px 16px 14px;
  background: linear-gradient(0deg, rgba(24, 34, 48, 0.82), rgba(24, 34, 48, 0.0));
  color: #fff;
}
.app-card figcaption b {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
}
.app-card figcaption span {
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ============================================================
   Enterprise / assurance
   ============================================================ */
.enterprise {
  background:
    linear-gradient(90deg, rgba(28, 77, 174, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(156, 107, 51, 0.03) 1px, transparent 1px),
    var(--surface-2);
  background-size: 64px 64px;
  border-block: 1px solid var(--hairline);
}
.enterprise-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.enterprise-card {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 30px 28px;
  border: 1px solid var(--hairline);
  border-top: 2px solid var(--bronze);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  transition: transform 0.45s var(--ease-lux), box-shadow 0.45s var(--ease-lux);
}
.enterprise-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lift); }
.enterprise-card .glyph {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--bronze-line);
  color: var(--bronze);
  font-family: var(--font-mono);
  font-size: 0.86rem;
}
.enterprise-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 600;
}
.enterprise-card p { margin: 0; color: var(--ink-soft); font-size: 0.92rem; line-height: 1.6; }

/* ============================================================
   Finale CTA
   ============================================================ */
.finale {
  padding: clamp(92px, 14vh, 168px) clamp(20px, 5vw, 72px);
  background:
    radial-gradient(circle at 50% 0%, var(--bronze-wash), transparent 44%),
    radial-gradient(circle at 50% 100%, var(--accent-wash), transparent 46%),
    var(--paper);
  text-align: center;
}
.finale h2 { font-size: clamp(2.4rem, 4.5vw, 4.5rem); }
.finale .lede { margin-inline: auto; }
.finale .action-row { justify-content: center; }
.finale-contact {
  margin-top: 32px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--hairline);
  background: var(--surface-2);
  padding: clamp(44px, 6vh, 70px) clamp(20px, 5vw, 72px) 34px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 36px;
  width: min(var(--shell), 100%);
  margin-inline: auto;
}
.footer-grid p { max-width: 340px; color: var(--muted); font-size: 0.86rem; line-height: 1.6; }
.footer-grid h4 {
  margin: 0 0 14px;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.footer-grid ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.footer-grid a { color: var(--ink-soft); font-size: 0.88rem; text-decoration: none; }
.footer-grid a:hover { color: var(--accent); }
.footer-legal {
  width: min(var(--shell), 100%);
  margin: 42px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

/* ============================================================
   V2 ADDITIONS — footnotes, claims discipline
   ============================================================ */
.footnote {
  max-width: 664px;
  margin: 26px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.6;
}
.footnote sup, .claim-mark { color: var(--bronze); font-weight: 600; }
.section-head.centered .footnote { margin-inline: auto; }
.hero .footnote { max-width: 618px; margin-top: 22px; }

.text-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--accent-line);
  transition: border-color 0.25s ease;
}
.text-link:hover { border-bottom-color: var(--accent); }

/* Scope card — "what it does not do", honesty as product surface */
.scope-panel {
  display: grid;
  gap: 0;
  max-width: 860px;
  margin-inline: auto;
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--bronze);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.scope-panel .scope-row {
  display: grid;
  grid-template-columns: 168px 1fr;
  gap: 18px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--hairline);
}
.scope-panel .scope-row:last-child { border-bottom: 0; }
.scope-panel .scope-row b {
  color: var(--bronze);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding-top: 3px;
}
.scope-panel .scope-row span { color: var(--ink-soft); font-size: 0.92rem; line-height: 1.6; }

/* ============================================================
   V2 ADDITIONS — changelog timeline
   ============================================================ */
.release-timeline {
  position: relative;
  display: grid;
  gap: 26px;
  max-width: 860px;
  margin-inline: auto;
}
.release-entry {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 28px 30px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.release-entry::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--bronze));
}
.release-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}
.release-version {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
}
.release-date {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.release-channel {
  margin-left: auto;
  padding: 3px 10px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-wash);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.release-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.release-items { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.release-items li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  align-items: start;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.55;
}
.release-items .tag {
  justify-self: start;
  margin-top: 2px;
  padding: 2px 9px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.tag.tag-added    { background: var(--accent-wash);  color: var(--accent);  border: 1px solid var(--accent-line); }
.tag.tag-improved { background: rgba(70, 88, 106, 0.08); color: var(--ink-soft); border: 1px solid var(--hairline); }
.tag.tag-fixed    { background: var(--bronze-wash);  color: var(--bronze);  border: 1px solid var(--bronze-line); }
.tag.tag-security { background: rgba(140, 42, 42, 0.07); color: #8c2a2a; border: 1px solid rgba(140, 42, 42, 0.25); }
.release-gap {
  padding: 16px 30px;
  border: 1px dashed var(--hairline);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.6;
  background: var(--surface-2);
}

/* ============================================================
   V2 ADDITIONS — product family page
   ============================================================ */
.product-stack { display: grid; gap: 22px; }
.product-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: clamp(22px, 3vw, 42px);
  padding: clamp(24px, 3vw, 38px);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  transition: transform 0.45s var(--ease-lux), box-shadow 0.45s var(--ease-lux);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-card.flagship { border-top: 2px solid var(--accent); }
.product-ident { display: grid; gap: 8px; align-content: start; }
.product-ident .kicker {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.product-ident h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  line-height: 1.12;
}
.product-ident .role { color: var(--muted); font-size: 0.86rem; line-height: 1.5; }
.product-body { display: grid; gap: 14px; align-content: start; }
.product-body p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; line-height: 1.66; }
.product-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.product-facts li {
  padding: 5px 11px;
  border: 1px solid var(--hairline);
  background: var(--surface-2);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}
.product-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.product-links .button-secondary { min-height: 44px; padding: 0 18px; font-size: 0.88rem; }

/* Integration flows — the only real arrows */
.flow-panel {
  display: grid;
  gap: 14px;
  max-width: 860px;
  margin-inline: auto;
}
.flow-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: center;
  padding: 18px 22px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.flow-node {
  display: grid;
  gap: 3px;
  justify-items: center;
  text-align: center;
  padding: 12px 10px;
  border: 1px solid var(--hairline);
  background: var(--surface-2);
}
.flow-node b { font-family: var(--font-display); font-size: 0.98rem; font-weight: 600; color: var(--ink); }
.flow-node span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.flow-arrow {
  display: grid;
  gap: 4px;
  justify-items: center;
  color: var(--bronze);
  font-size: 1.05rem;
}
.flow-arrow small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}
.flow-note {
  max-width: 860px;
  margin: 16px auto 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

/* ============================================================
   V2 ADDITIONS — SESAME criteria / spec lists
   ============================================================ */
.criteria-block {
  display: grid;
  gap: 16px;
}
.criteria-group {
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.criteria-group header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--hairline);
  background: var(--surface-2);
}
.criteria-group header b {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 600;
}
.criteria-group header span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.criteria-group ol { margin: 0; padding: 0; list-style: none; counter-reset: crit; }
.criteria-group ol li {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 14px;
  padding: 13px 24px;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.55;
}
.criteria-group ol li:last-child { border-bottom: 0; }
.criteria-group ol li::before {
  counter-increment: crit;
  content: "C-" counter(crit);
  color: var(--bronze);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding-top: 2px;
}
.criteria-group.reliability ol li::before { content: "R-" counter(crit); }
.criteria-group ol li code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  color: var(--accent);
  background: var(--accent-wash);
  padding: 1px 5px;
  border-radius: 3px;
}

/* Two-column split utility */
.split-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

/* ============================================================
   Editions and Paddle checkout
   ============================================================ */
.pricing-v2 {
  background: var(--surface-2);
  border-top: 1px solid var(--hairline);
}
.pricing-v2 .section-lede {
  max-width: 720px;
  margin: 18px auto 0;
  color: var(--ink-soft);
  line-height: 1.7;
}
.pricing-edition-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.pricing-edition-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 30px 28px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.pricing-edition-card.featured {
  border-color: var(--accent-line);
  box-shadow: var(--shadow);
}
.pricing-card-label {
  color: var(--bronze);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.pricing-edition-card h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 600;
}
.pricing-price {
  margin: 16px 0 0;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
}
.pricing-price small {
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 400;
}
.pricing-desc {
  min-height: 72px;
  margin: 10px 0 0;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.6;
}
.pricing-features {
  display: grid;
  gap: 10px;
  margin: 22px 0 26px;
  padding: 0;
  list-style: none;
}
.pricing-features li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 7px;
  color: var(--ink-soft);
  font-size: 0.87rem;
  line-height: 1.45;
}
.pricing-features li::before {
  content: "\2713";
  color: var(--accent);
  font-weight: 700;
}
.pricing-buy {
  width: 100%;
  margin-top: auto;
}
.pricing-addons {
  margin-top: 30px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.pricing-addons-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 20px;
}
.pricing-addons-header h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
}
.pricing-addons-header p,
.pricing-addons-note,
.pricing-note {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.65;
}
.pricing-addons-header p {
  max-width: 560px;
  margin: 0;
}
.pricing-addons-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.pricing-addon-option {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  min-height: 70px;
  padding: 12px 14px;
  border: 1px solid var(--hairline);
  background: var(--paper);
  cursor: pointer;
}
.pricing-addon-option > input[type="checkbox"] {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}
.pricing-addon-option strong,
.pricing-addon-option small { display: block; }
.pricing-addon-option strong {
  color: var(--ink);
  font-size: 0.9rem;
}
.pricing-addon-option small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.74rem;
}
.pricing-addon-with-quantity .pricing-addon-quantity {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  color: var(--muted);
  font-size: 0.72rem;
}
.pricing-addon-quantity input {
  width: 62px;
  padding: 7px 8px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}
.pricing-addons-note,
.pricing-note {
  margin: 18px auto 0;
  text-align: center;
}
.pricing-note { max-width: 880px; }
.paddle-checkout-status {
  max-width: 820px;
  margin: 24px auto 0;
  padding: 14px 16px;
  border: 1px solid var(--accent-line);
  background: var(--accent-wash);
  color: var(--ink-soft);
  text-align: center;
  font-size: 0.9rem;
}
.paddle-checkout-status-success {
  border-color: rgba(42, 128, 85, 0.45);
  background: rgba(42, 128, 85, 0.08);
  color: #236d4a;
}
.paddle-checkout-status-error {
  border-color: rgba(166, 47, 47, 0.45);
  background: rgba(166, 47, 47, 0.07);
  color: #8d2a2a;
}
.paddle-checkout-status a { color: inherit; font-weight: 600; }

/* ============================================================
   Responsive — 1440 / 1280 / 1080 / 860 / 620 / 375
   ============================================================ */
@media (max-width: 1080px) {
  .engine-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chip-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .loop-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .loop-step::after { display: none; }
  .evidence-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .enterprise-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-card { grid-template-columns: 1fr; }
  .split-2 { grid-template-columns: 1fr; }
  .pricing-edition-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .site-header { min-height: 64px; }
  .site-header.is-scrolled, .site-header.is-solid { min-height: 56px; }

  /* Mobile nav: collapsible panel (all pages stay reachable) */
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    top: 0; right: 0;
    z-index: 80;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    width: min(320px, 86vw);
    height: 100dvh;
    padding: 84px 20px 24px;
    background: rgba(248, 246, 241, 0.97);
    border-left: 1px solid var(--hairline);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.4s var(--ease-lux), visibility 0s linear 0.4s;
  }
  .site-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    transition: transform 0.4s var(--ease-lux), visibility 0s;
  }
  .site-nav a { padding: 13px 14px; font-size: 1rem; }
  .site-nav .demo-cta { margin-left: 0; margin-top: 10px; text-align: center; }
  .nav-toggle { position: relative; z-index: 85; }

  .hero { min-height: auto; }
  .hero.page-hero { min-height: auto; }
  .hero::before {
    background: linear-gradient(180deg,
      rgba(248, 246, 241, 0.98) 0%,
      rgba(248, 246, 241, 0.9) 44%,
      rgba(248, 246, 241, 0.6) 100%);
  }
  .hero-photo { position: relative; z-index: 0; min-height: 300px; height: auto; object-position: center; }
  .hero-wave { width: 100%; height: 40%; }
  .hero-copy { margin: 0; width: 100%; padding: 40px 20px 32px; }
  h1 { font-size: clamp(2.6rem, 11vw, 4rem); line-height: 1.02; }
  .hero.page-hero h1 { font-size: clamp(2.1rem, 9vw, 3.2rem); }
  .scroll-cue { display: none; }
  .pillar { grid-template-columns: 1fr; gap: 30px; }
  .pillar.flip .pillar-visual { order: 0; }
  .pillar-visual::before, .pillar.flip .pillar-visual::before { inset: 14px -12px -14px 12px; }
  .gauge-row { grid-template-columns: 1fr; gap: 12px; }
  .gauge-row.gauge-head { display: none; }
  .gauge::after {
    content: attr(data-col);
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }
  .flow-row { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); padding: 4px 0; }
  .flow-arrow small { transform: rotate(-90deg); display: none; }
  .flow-arrow::after {
    content: attr(data-label);
    display: block;
    transform: rotate(-90deg);
  }
  .scope-panel .scope-row { grid-template-columns: 1fr; gap: 6px; }
  .pricing-addons-header { align-items: start; flex-direction: column; gap: 12px; }
}

@media (max-width: 620px) {
  .site-header { padding: 12px 14px; }
  .brand-name span { display: none; }
  .demo-cta { padding: 8px 13px; font-size: 0.84rem; }
  .action-row { display: grid; }
  .button-primary, .button-secondary { width: 100%; }
  .engine-grid, .chip-grid, .loop-strip, .evidence-grid, .app-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .proof-strip { grid-template-columns: 1fr; }
  .workflow-step { grid-template-columns: 44px 1fr; gap: 16px; }
  .workflow-step .node { width: 44px; height: 44px; }
  .workflow-rail::before, .workflow-rail .rail-progress { left: 21px; }
  .pillar-points li { grid-template-columns: 1fr; gap: 4px; }
  .floating-demo { right: 12px; bottom: 12px; }
  .floating-demo a { min-height: 48px; padding: 0 18px; }
  .release-items li { grid-template-columns: 1fr; gap: 5px; }
  .release-entry { padding: 20px 18px; }
  .criteria-group ol li { grid-template-columns: 40px 1fr; padding: 12px 16px; }
  .product-links .button-secondary { width: auto; }
  .pricing-addons-grid { grid-template-columns: 1fr; }
  .pricing-addon-with-quantity { align-items: flex-start; flex-wrap: wrap; }
  .pricing-addon-with-quantity .pricing-addon-quantity { width: 100%; margin-left: 30px; }
}