/* ==========================================================================
   AP3 — How It Works section (/how-it-works/, /why-us/, /what-we-do/).
   Page base mirrors the inline styles on the other pages; assets/site.css
   loads after this file and refines the shared header, menu and hero layers.
   ========================================================================== */

:root {
  --bg: #FAFAF8;
  --bg-raised: #F1F1EE;
  --ink: #14161A;
  --ink-soft: #4A4E57;
  --ink-faint: #8A8E97;
  --rule: #DBDCD6;
  --rule-strong: #B9BBB4;
  --accent: #2B4C7E;
  --accent-soft: #EAF0F8;
  --display: 'Space Grotesk', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --body: 'Inter', sans-serif;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --header-h: 72px;
  --subnav-h: 52px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--ink); font-family: var(--body); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- Header + menu (same as every page) ---------- */
header { position: fixed; top: 0; left: 0; right: 0; z-index: 30; background: rgba(255,255,255,0.45); backdrop-filter: blur(18px) saturate(1.2); -webkit-backdrop-filter: blur(18px) saturate(1.2); border-bottom: 1px solid rgba(0,0,0,0.06); }
nav.wrap { max-width: 1180px; display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 20px; width: auto; display: block; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-cta {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.02em;
  background: var(--ink); color: var(--bg); padding: 9px 18px; border-radius: 2px;
  transition: background 0.2s, transform 0.18s cubic-bezier(0.16,1,0.3,1), box-shadow 0.18s ease;
}
.nav-cta:hover { background: var(--accent); text-decoration: none; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(43,76,126,0.28); }
.menu-toggle { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 4px; width: 44px; height: 44px; border: none; background: none; cursor: pointer; padding: 0; }
.menu-toggle span { display: block; width: 20px; height: 1.5px; background: var(--ink); transition: transform 0.25s cubic-bezier(0.16,1,0.3,1), opacity 0.2s ease; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
.site-menu {
  position: fixed; inset: 0; z-index: 40; background: var(--bg);
  display: flex; flex-direction: column; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity 0.3s cubic-bezier(0.16,1,0.3,1), transform 0.3s cubic-bezier(0.16,1,0.3,1), visibility 0.3s;
  overflow-y: auto; -webkit-overflow-scrolling: touch; padding: 100px 0 40px;
}
.site-menu.is-open { opacity: 1; visibility: visible; transform: none; }
.site-menu-links { display: flex; flex-direction: column; gap: 6px; max-width: 1180px; margin: 0 auto; padding: 0 32px; width: 100%; }
.site-menu-links a {
  font-family: var(--display); font-weight: 600; font-size: clamp(1.8rem, 6vw, 3.2rem);
  color: var(--ink); letter-spacing: -0.01em; padding: 10px 0; border-bottom: 1px solid var(--rule);
  transition: color 0.2s ease, padding-left 0.25s cubic-bezier(0.16,1,0.3,1);
}
.site-menu-links a:last-child { border-bottom: none; }
.site-menu-links a:hover { color: var(--accent); text-decoration: none; padding-left: 12px; }
.site-menu-foot { max-width: 1180px; margin: 40px auto 0; padding: 0 32px; width: 100%; display: flex; gap: 24px; font-family: var(--mono); font-size: 12px; color: var(--ink-soft); flex-wrap: wrap; }
.site-menu-foot a { color: var(--ink-soft); }
@media (max-width: 640px) {
  .nav-cta { display: none; }
  .site-menu-links a { font-size: clamp(1.6rem, 8vw, 2.4rem); }
}

/* ---------- Footer ---------- */
footer { padding: 56px 0; }
.footer-grid { max-width: 1180px; margin: 0 auto; padding: 0 32px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-links { display: flex; gap: 24px; font-family: var(--mono); font-size: 12px; color: var(--ink-soft); flex-wrap: wrap; }
.footer-links a { color: var(--ink-soft); }
.footer-meta { font-family: var(--mono); font-size: 12px; color: var(--ink-faint); }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Hero — blueprint (same sheet as Research) ---------- */
.page-hero--blueprint {
  --hero-header-bg: rgba(30,58,99,0.55);
  min-height: 600px;
  padding: 156px 0 120px;
  color: #fff;
  border-bottom: 1px solid #1E3A63;
  background-color: #2B4C7E;
  background-image:
    radial-gradient(ellipse 70% 80% at 18% 32%, rgba(255,255,255,0.07), rgba(255,255,255,0) 62%),
    linear-gradient(rgba(255,255,255,0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.13) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(160deg, #305591 0%, #2B4C7E 46%, #1E3A63 100%);
  background-size: auto, 100px 100px, 100px 100px, 20px 20px, 20px 20px, auto;
  background-position: 0 0, -1px -1px, -1px -1px, -1px -1px, -1px -1px, 0 0;
}
.page-hero--blueprint::before {
  content: ''; position: absolute; inset: 88px 20px 20px; z-index: -1; pointer-events: none;
  border: 1px solid rgba(255,255,255,0.38);
  outline: 1px solid rgba(255,255,255,0.12); outline-offset: -6px;
}
.page-hero .kicker { font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; text-transform: uppercase; display: flex; align-items: center; gap: 14px; margin-bottom: 20px; color: #fff; }
.page-hero .kicker::before { content: ''; width: 28px; height: 1px; background: #fff; flex-shrink: 0; }
.page-hero h1 { font-family: var(--display); font-weight: 600; font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.08; letter-spacing: -0.015em; margin-bottom: 20px; color: #fff; max-width: 16ch; }
.page-hero p { font-size: 1.05rem; line-height: 1.7; color: rgba(255,255,255,0.82); max-width: 52ch; }
.page-hero a:focus-visible { outline-color: #fff; }

.crumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; list-style: none; }
.crumbs li { display: flex; align-items: center; gap: 10px; }
.crumbs li + li::before { content: '/'; color: rgba(255,255,255,0.45); }
.crumbs a { color: rgba(255,255,255,0.72); transition: color 200ms ease; }
.crumbs a:hover { color: #fff; text-decoration: none; }

.title-block {
  position: absolute; right: 20px; bottom: 20px; margin: 0;
  display: grid; grid-template-columns: repeat(4, auto);
  border-top: 1px solid rgba(255,255,255,0.38); border-left: 1px solid rgba(255,255,255,0.38);
  font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em;
}
.title-block div { padding: 8px 16px; border-right: 1px solid rgba(255,255,255,0.18); }
.title-block div:last-child { border-right: 0; }
.title-block dt { font-size: 9px; color: rgba(255,255,255,0.55); margin-bottom: 2px; }
.title-block dd { margin: 0; font-size: 11px; color: #fff; }
@media (max-width: 899px) {
  .page-hero--blueprint { min-height: 0; padding: 132px 0 290px; }
  .page-hero--blueprint::before { inset: 80px 12px 12px; }
  .title-block { display: none; }
}

/* ---------- Sub-navigation (sticky tabs) ---------- */
.subnav {
  position: sticky; top: calc(var(--header-h) + env(safe-area-inset-top)); z-index: 25;
  background: rgba(250,250,248,0.86);
  backdrop-filter: blur(18px) saturate(1.2); -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid var(--rule);
}
.subnav-inner { position: relative; display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.subnav-inner::-webkit-scrollbar { display: none; }
.subnav a {
  position: relative; flex-shrink: 0; display: flex; align-items: center;
  min-height: var(--subnav-h); padding: 0 18px;
  font-family: var(--mono); font-size: 13px; color: var(--ink-soft); white-space: nowrap;
  transition: color 200ms ease;
}
.subnav a:first-child { padding-left: 0; }
.subnav a:hover { text-decoration: none; }
.subnav-label { display: flex; align-items: center; gap: 10px; }
.subnav-no { font-size: 10.5px; letter-spacing: 0.08em; color: var(--ink-faint); transition: color 200ms ease; }
.subnav a[aria-current="page"] { color: var(--ink); }
.subnav a[aria-current="page"] .subnav-no { color: var(--accent); }
/* No-JS underline; JS swaps it for the sliding bar */
.subnav a[aria-current="page"]::after { content: ''; position: absolute; left: 18px; right: 18px; bottom: 0; height: 2px; background: var(--accent); }
.subnav a:first-child[aria-current="page"]::after { left: 0; }
.subnav.has-bar a::after { display: none; }
.subnav-bar { position: absolute; left: 0; bottom: 0; width: 100px; height: 2px; background: var(--accent); transform-origin: 0 50%; pointer-events: none; }
.subnav-bar.is-moving { transition: transform 420ms var(--ease-in-out); }
@media (hover: hover) and (pointer: fine) {
  .subnav a:hover { color: var(--ink); }
}
/* Phones: all three tabs fit without scrolling the strip */
@media (max-width: 640px) {
  .subnav-inner { gap: 0; }
  .subnav a { padding: 0 10px; font-size: 11.5px; }
  .subnav a[aria-current="page"]::after { left: 10px; right: 10px; }
  .subnav-label { gap: 6px; }
}

/* ---------- Shared content blocks ---------- */
.section { padding: 96px 0; border-bottom: 1px solid var(--rule); }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 16px; display: flex; align-items: center; gap: 14px; }
.eyebrow::before { content: ''; width: 28px; height: 1px; background: var(--rule-strong); flex-shrink: 0; }
.prose p { font-size: 1.05rem; line-height: 1.78; color: var(--ink-soft); margin-bottom: 18px; max-width: 68ch; text-wrap: pretty; }
.prose p:last-child { margin-bottom: 0; }
.prose em { color: var(--ink); }
.prose a { text-decoration: underline; text-decoration-color: rgba(43,76,126,0.35); text-underline-offset: 3px; transition: text-decoration-color 200ms ease; }
.prose a:hover { text-decoration-color: var(--accent); }
.lead-prose p { font-size: clamp(1.15rem, 1.8vw, 1.3rem); line-height: 1.6; color: var(--ink); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 12px; } }

.step-tag {
  display: inline-block; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.03em;
  color: var(--ink-faint); border: 1px solid var(--rule-strong); padding: 2px 8px; border-radius: 2px;
}

.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 13.5px; padding: 13px 22px; border-radius: 2px;
  background: var(--ink); color: var(--bg);
  transition: background 0.2s, transform 0.18s cubic-bezier(0.16,1,0.3,1), box-shadow 0.18s ease;
}
.btn-primary:hover { background: var(--accent); text-decoration: none; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(43,76,126,0.28); }

/* ---------- Figures ---------- */
.fig {
  margin: 36px 0; padding: 22px 24px 28px; border-radius: 14px;
  background-color: var(--accent-soft);
  background-image: linear-gradient(rgba(43,76,126,0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(43,76,126,0.07) 1px, transparent 1px);
  background-size: 20px 20px; background-position: -1px -1px;
  box-shadow: inset 0 0 0 1px rgba(43,76,126,0.14);
}
.fig-cap { display: flex; justify-content: space-between; gap: 6px 16px; flex-wrap: wrap; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); margin-bottom: 22px; }
.fig-cap > span + span { color: var(--ink-faint); }
.cap-stack { display: grid; }
.cap-stack > span { grid-area: 1 / 1; transition: opacity 400ms ease; }

/* Flow: nodes joined by links. Horizontal on wide screens, stacked on phones. */
.flow { display: flex; align-items: stretch; }
.flow-node {
  position: relative; flex: 1 1 0; min-width: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  padding: 18px 12px; border-radius: 10px; background: var(--bg);
  box-shadow: 0 0 0 1px var(--rule-strong);
  font-family: var(--mono); font-size: 11.5px; line-height: 1.35; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink); text-align: center;
}
.flow-node small { font-size: 9.5px; letter-spacing: 0.08em; color: var(--ink-faint); }
.flow-link { position: relative; flex: 0 0 48px; align-self: center; height: 1px; background: var(--rule-strong); }
.flow-link::after { content: ''; position: absolute; right: 0; top: -3.5px; border-left: 5px solid var(--rule-strong); border-top: 4px solid transparent; border-bottom: 4px solid transparent; }
.pulse { position: absolute; inset: 0; opacity: 0; pointer-events: none; }
.pulse::before { content: ''; position: absolute; left: -4px; top: -3.5px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(43,76,126,0.18); }

/* Looping travel: transit in the first 40%, then idle so links can hand off */
@keyframes pulse-x { 0% { transform: translateX(0); opacity: 0; } 5%, 35% { opacity: 1; } 40% { transform: translateX(100%); opacity: 0; } 100% { transform: translateX(100%); opacity: 0; } }
@keyframes pulse-y { 0% { transform: translateY(0); opacity: 0; } 5%, 35% { opacity: 1; } 40% { transform: translateY(100%); opacity: 0; } 100% { transform: translateY(100%); opacity: 0; } }
/* One-shot travel */
@keyframes travel-x { 0% { transform: translateX(0); opacity: 0; } 12%, 88% { opacity: 1; } 100% { transform: translateX(100%); opacity: 0; } }
@keyframes travel-y { 0% { transform: translateY(0); opacity: 0; } 12%, 88% { opacity: 1; } 100% { transform: translateY(100%); opacity: 0; } }

.fig.is-live .pulse { animation: pulse-x 2.4s var(--ease-in-out) infinite; animation-delay: var(--delay, 0s); }

@media (max-width: 640px) {
  .fig { padding: 18px 16px 22px; margin: 28px 0; }
  .flow { flex-direction: column; }
  .flow-link { flex-basis: 32px; width: 1px; height: auto; }
  .flow-link::after { right: auto; top: auto; bottom: 0; left: -3.5px; border-top: 5px solid var(--rule-strong); border-left: 4px solid transparent; border-right: 4px solid transparent; border-bottom: 0; }
  .pulse::before { left: -3.5px; top: -4px; }
  .fig.is-live .pulse { animation-name: pulse-y; }
}

/* ---------- How It Works: phase rail + phases ---------- */
.process { padding: 80px 0 16px; }
.process-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 80px; align-items: start; }
.process-rail { position: sticky; top: calc(var(--header-h) + var(--subnav-h) + 40px + env(safe-area-inset-top)); }
.rail-list { list-style: none; }
.rail-list li { position: relative; }
.rail-seg { position: absolute; left: 15.5px; top: 50%; width: 1px; height: 100%; background: var(--rule); }
.rail-seg span { display: block; height: 100%; background: var(--accent); transform-origin: 50% 0; transform: scaleY(0); }
.rail-list li:last-child .rail-seg { display: none; }
.rail-list a { display: grid; grid-template-columns: 32px 1fr; column-gap: 16px; align-items: center; padding: 12px 0; color: var(--ink-soft); }
.rail-list a:hover { text-decoration: none; }
.rail-dot {
  position: relative; z-index: 1; grid-row: span 2; width: 32px; height: 32px; border-radius: 999px;
  display: grid; place-items: center; background: var(--bg); box-shadow: 0 0 0 1px var(--rule-strong);
  font-family: var(--mono); font-size: 11px; color: var(--ink-faint);
  transition: background-color 250ms ease, color 250ms ease, box-shadow 250ms ease;
}
.rail-name { font-family: var(--display); font-weight: 600; font-size: 1rem; line-height: 1.3; color: var(--ink-soft); transition: color 250ms ease; }
.rail-tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.03em; color: var(--ink-faint); }
.rail-list a.is-done .rail-dot { box-shadow: 0 0 0 1px var(--accent); color: var(--accent); }
.rail-list a.is-active .rail-dot { background: var(--accent); color: #fff; box-shadow: 0 0 0 1px var(--accent), 0 0 0 5px var(--accent-soft); }
.rail-list a.is-active .rail-name { color: var(--ink); }
@media (hover: hover) and (pointer: fine) {
  .rail-list a:hover .rail-name { color: var(--ink); }
}

.phase { padding-bottom: 88px; scroll-margin-top: calc(var(--header-h) + var(--subnav-h) + 24px); }
.phase + .phase { padding-top: 88px; border-top: 1px solid var(--rule); }
.phase-head { display: flex; align-items: flex-start; gap: 22px; margin-bottom: 28px; }
.phase-no { font-family: var(--mono); font-size: clamp(2rem, 4vw, 2.8rem); line-height: 1; color: var(--rule-strong); flex-shrink: 0; }
.phase-head .step-tag { margin-bottom: 12px; }
.phase h2 { font-family: var(--display); font-weight: 600; font-size: clamp(1.7rem, 3.2vw, 2.4rem); line-height: 1.12; letter-spacing: -0.01em; }
.phase-name { display: block; }
.phase-sub { display: block; margin-top: 8px; font-size: clamp(1.02rem, 1.6vw, 1.2rem); font-weight: 500; letter-spacing: 0; line-height: 1.35; color: var(--ink-soft); }

@media (max-width: 960px) {
  .process { padding-top: 56px; }
  .process-grid { grid-template-columns: 1fr; gap: 0; }
  .process-rail { display: none; }
}
@media (max-width: 640px) {
  .phase { padding-bottom: 60px; }
  .phase + .phase { padding-top: 60px; }
  .phase-head { flex-direction: column; gap: 10px; }
}

/* FIG — which stage is broken: a scan passes each stage, then one is flagged */
.fig-scan .flow-node { transition: background-color 450ms var(--ease-out), color 450ms var(--ease-out), box-shadow 450ms var(--ease-out); }
.fig-scan.is-in .flow-node { animation: node-scan 700ms ease; animation-delay: calc(300ms + var(--n) * 420ms); }
@keyframes node-scan { 50% { box-shadow: 0 0 0 1px var(--accent), 0 0 0 6px rgba(43,76,126,0.16); } }
.fig-scan.is-in .is-target { background: var(--ink); color: var(--bg); box-shadow: 0 0 0 1px var(--ink); transition-delay: 1.9s; }
.fig-scan .flag { opacity: 0; transform: translateY(4px); transition: opacity 450ms var(--ease-out), transform 450ms var(--ease-out); }
.fig-scan.is-in .flag { opacity: 1; transform: none; color: rgba(255,255,255,0.7); transition-delay: 2.1s; }

/* FIG — bars: find the constraint */
.bars { display: grid; gap: 14px; }
.bar-row { display: grid; grid-template-columns: 130px minmax(0, 1fr); align-items: center; gap: 16px; }
.bar-label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); }
.bar-track { position: relative; height: 22px; border-radius: 4px; background: rgba(43,76,126,0.08); }
.bar { position: absolute; inset: 0; border-radius: 4px; background: rgba(43,76,126,0.3); transform-origin: 0 50%; transform: scaleX(0); transition: transform 900ms var(--ease-out), background-color 300ms ease; transition-delay: calc(150ms + var(--n) * 90ms), 0s; }
.fig-bars.is-in .bar { transform: scaleX(var(--w)); }
.fig-bars.is-in .bar.is-max { background: var(--ink); transition-delay: calc(150ms + var(--n) * 90ms), 1.1s; }
.bar-callout { margin-top: 20px; display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); opacity: 0; transform: translateY(4px); transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out); transition-delay: 1.25s; }
.bar-callout::before { content: ''; width: 18px; height: 1px; background: var(--ink); flex-shrink: 0; }
.fig-bars.is-in .bar-callout { opacity: 1; transform: none; }
@media (max-width: 640px) { .bar-row { grid-template-columns: 1fr; gap: 6px; } }

/* FIG — separate pieces join into one system */
.fig-join .flow-node { opacity: 0.5; transform: scale(0.96); transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out); transition-delay: calc(var(--n) * 90ms); }
.fig-join.is-in .flow-node { opacity: 1; transform: none; }
.fig-join .flow-link { transform: scaleX(0); transform-origin: 0 50%; transition: transform 600ms var(--ease-out); transition-delay: calc(450ms + var(--n) * 180ms); }
.fig-join.is-in .flow-link { transform: none; }
@media (max-width: 640px) { .fig-join .flow-link { transform: scaleY(0); transform-origin: 50% 0; } }

/* FIG — monthly loop */
.loop-svg { display: block; width: 100%; max-width: 400px; height: auto; margin: 0 auto; overflow: visible; }
.loop-ring { fill: none; stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.4s var(--ease-out) 200ms; }
.fig-loop.is-in .loop-ring { stroke-dashoffset: 0; }
.loop-node { fill: var(--bg); stroke: var(--accent); stroke-width: 1.5; opacity: 0; transform: scale(0.6); transform-box: fill-box; transform-origin: center; transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out); transition-delay: calc(500ms + var(--n) * 260ms); }
.loop-label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; fill: var(--ink); opacity: 0; transition: opacity 500ms var(--ease-out); transition-delay: calc(650ms + var(--n) * 260ms); }
.loop-center { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; fill: var(--ink-faint); }
.fig-loop.is-in .loop-node { opacity: 1; transform: none; }
.fig-loop.is-in .loop-label { opacity: 1; }
.loop-orbit { transform-box: view-box; transform-origin: 180px 136px; opacity: 0; transition: opacity 400ms ease 1.5s; }
.loop-dot { fill: var(--accent); }
.fig-loop.is-in .loop-orbit { opacity: 1; }
.fig-loop.is-live .loop-orbit { animation: orbit 9s linear infinite; }
@keyframes orbit { to { transform: rotate(360deg); } }

/* ---------- FAQ ---------- */
.faq { padding: 96px 0; background: var(--bg-raised); border-top: 1px solid var(--rule); scroll-margin-top: calc(var(--header-h) + var(--subnav-h) - 40px); }
.faq-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 56px; align-items: start; }
.faq-head h2 { font-family: var(--display); font-weight: 600; font-size: clamp(1.7rem, 3.2vw, 2.4rem); line-height: 1.12; letter-spacing: -0.01em; max-width: 14ch; }
.faq-list { border-top: 1px solid var(--rule-strong); interpolate-size: allow-keywords; }
.faq-item { border-bottom: 1px solid var(--rule-strong); }
.faq-item summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 0; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item h3 { font-family: var(--display); font-weight: 600; font-size: 1.12rem; line-height: 1.35; transition: color 200ms ease; }
.faq-icon { position: relative; flex-shrink: 0; width: 32px; height: 32px; border-radius: 999px; box-shadow: 0 0 0 1px var(--rule-strong); transition: background-color 200ms ease, box-shadow 200ms ease; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.5px; margin: -0.75px 0 0 -6px; background: var(--ink); transition: transform 300ms var(--ease-out), background-color 200ms ease; }
.faq-icon::after { transform: rotate(90deg); }
.faq-item[open] .faq-icon { background: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
.faq-item[open] .faq-icon::before, .faq-item[open] .faq-icon::after { background: var(--bg); }
.faq-item[open] .faq-icon::after { transform: rotate(0deg); }
.faq-body p { padding: 0 56px 26px 0; font-size: 1rem; line-height: 1.75; color: var(--ink-soft); max-width: 66ch; }
/* Height animates where ::details-content is supported; elsewhere it opens instantly */
.faq-item::details-content { block-size: 0; overflow: clip; transition: block-size 320ms var(--ease-out), content-visibility 320ms allow-discrete; }
.faq-item[open]::details-content { block-size: auto; }
@media (hover: hover) and (pointer: fine) {
  .faq-item summary:hover h3 { color: var(--accent); }
}
@media (max-width: 860px) {
  .faq { padding: 64px 0; }
  .faq-grid { grid-template-columns: 1fr; gap: 28px; }
  .faq-body p { padding-right: 0; }
}

/* ---------- Why Us: the gap ---------- */
.fig-gap { margin: 0 0 48px; padding-bottom: 32px; }
.gap-flow .flow-node { min-height: 112px; transition: box-shadow 400ms var(--ease-out); }
.swap { display: grid; }
.swap > span { grid-area: 1 / 1; transition: opacity 400ms ease; }
.fig-gap[data-state="leak"] .s-closed, .fig-gap[data-state="closed"] .s-leak,
.fig-gap[data-state="leak"] .cap-closed, .fig-gap[data-state="closed"] .cap-leak { opacity: 0; }

.gap-zone { background: transparent; box-shadow: none; border: 1px dashed var(--rule-strong); color: var(--ink-soft); transition: background-color 450ms var(--ease-out), border-color 450ms var(--ease-out), color 450ms var(--ease-out); }
.fig-gap[data-state="closed"] .gap-zone { background: var(--accent); border-color: var(--accent); color: #fff; }
.gap-link-2 { background: repeating-linear-gradient(90deg, var(--rule-strong) 0 4px, transparent 4px 8px); transition: background-color 400ms ease; }
.fig-gap[data-state="closed"] .gap-link-2 { background: var(--accent); }
.fig-gap[data-state="closed"] .gap-link-2::after { border-left-color: var(--accent); }
.fig-gap[data-state="closed"] .closer-node { box-shadow: 0 0 0 1px var(--accent), 0 0 0 5px rgba(43,76,126,0.14); }
.fig-gap[data-state="closed"] .closer-node small { color: var(--accent); }

.gap-drop { position: absolute; left: 50%; top: 50%; width: 8px; height: 8px; margin: -4px 0 0 -4px; border-radius: 50%; background: var(--accent); opacity: 0; pointer-events: none; }
.gap-leak-note { margin-top: 18px; text-align: center; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); transition: opacity 400ms ease; }
.fig-gap[data-state="closed"] .gap-leak-note { opacity: 0; }
.fig-gap[data-state="closed"] .gap-link-2 .pulse::before { background: var(--accent); }
.fig-gap[data-state="leak"] .gap-link-2 .pulse::before { background: var(--bg); box-shadow: 0 0 0 1.5px var(--ink-faint); }

.fig-gap.is-playing .gap-link-1 .pulse { animation: travel-x 900ms var(--ease-in-out) 200ms both; }
.fig-gap.is-playing[data-state="leak"] .gap-drop { animation: gap-drop 1s var(--ease-out) 1.1s both; }
.fig-gap.is-playing[data-state="leak"] .gap-link-2 .pulse { animation: travel-x 900ms var(--ease-in-out) 2.1s both; }
.fig-gap.is-playing[data-state="closed"] .gap-link-2 .pulse { animation: travel-x 900ms var(--ease-in-out) 1.2s both; }
@keyframes gap-drop { 0% { opacity: 0; transform: translateY(0); } 15% { opacity: 1; } 100% { opacity: 0; transform: translateY(56px); } }
@keyframes gap-drop-x { 0% { opacity: 0; transform: translateX(0); } 15% { opacity: 1; } 100% { opacity: 0; transform: translateX(72px); } }

@media (max-width: 640px) {
  .gap-flow .flow-node { min-height: 0; padding-block: 20px; }
  .gap-link-2 { background: repeating-linear-gradient(180deg, var(--rule-strong) 0 4px, transparent 4px 8px); }
  .fig-gap[data-state="closed"] .gap-link-2::after { border-left-color: transparent; border-top-color: var(--accent); }
  .fig-gap.is-playing .gap-link-1 .pulse,
  .fig-gap.is-playing[data-state="leak"] .gap-link-2 .pulse,
  .fig-gap.is-playing[data-state="closed"] .gap-link-2 .pulse { animation-name: travel-y; }
  .fig-gap.is-playing[data-state="leak"] .gap-drop { animation-name: gap-drop-x; }
}

/* Ownership: who is paid for which stage */
.fig-owners { margin: 0; }
.owners { display: grid; gap: 18px; }
.owner-row { display: grid; grid-template-columns: 104px minmax(0, 1fr); align-items: center; gap: 16px; }
.owner-name { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); }
.owner-track { display: flex; align-items: center; }
.owner-cell { flex: 1 1 0; min-width: 0; padding: 14px 10px; border-radius: 8px; text-align: center; font-family: var(--mono); font-size: 11px; line-height: 1.35; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-soft); border: 1px dashed var(--rule-strong); opacity: 0; transition: opacity 500ms var(--ease-out); transition-delay: calc(700ms + var(--n) * 160ms); }
.owner-cell.is-owned { color: var(--ink); background: var(--bg); border: 1px solid var(--rule-strong); transform: scale(0.96); transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out); transition-delay: calc(150ms + var(--n) * 160ms); }
.owner-gap { position: relative; flex: 0 0 40px; height: 1px; background: repeating-linear-gradient(90deg, var(--rule-strong) 0 3px, transparent 3px 6px); transform: scaleX(0); transform-origin: 0 50%; transition: transform 500ms var(--ease-out); transition-delay: calc(450ms + var(--n) * 160ms); }
.fig-owners.is-in .owner-cell { opacity: 1; transform: none; }
.fig-owners.is-in .owner-gap { transform: none; }
@media (max-width: 640px) {
  .owner-row { grid-template-columns: 1fr; gap: 8px; }
  .owner-gap { flex-basis: 20px; }
  .owner-cell { font-size: 10px; padding: 12px 6px; }
}

/* ---------- Statement band ---------- */
.statement {
  --hero-header-bg: rgba(30,58,99,0.55);
  padding: 112px 0; color: #fff;
  background-color: #2B4C7E;
  background-image:
    linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(160deg, #305591 0%, #2B4C7E 46%, #1E3A63 100%);
  background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px, auto;
  background-position: -1px -1px, -1px -1px, -1px -1px, -1px -1px, 0 0;
}
.statement p { font-family: var(--display); font-weight: 500; font-size: clamp(1.45rem, 3vw, 2.2rem); line-height: 1.32; letter-spacing: -0.01em; max-width: 34ch; color: #fff; }
.statement p > span { opacity: 0.28; transition: opacity 700ms var(--ease-out); transition-delay: calc(var(--n) * 380ms); }
.statement.is-in p > span { opacity: 1; }
@media (max-width: 640px) { .statement { padding: 72px 0; } }

/* ---------- What We Do ---------- */
.deliverables { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.deliverables > li { display: flex; }
.deliverable {
  position: relative; width: 100%; padding: 28px 28px 30px; border-radius: 18px; background: var(--bg);
  box-shadow: 0 0 0 1px var(--rule), 0 1px 2px rgba(20,22,26,0.04), 0 14px 34px -22px rgba(20,22,26,0.2);
  transition: transform 300ms var(--ease-out), box-shadow 300ms var(--ease-out);
}
.deliverable-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 22px; }
.deliverable-icon { width: 44px; height: 44px; border-radius: 999px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); transition: background-color 250ms ease, color 250ms ease; }
.deliverable-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.deliverable-no { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--ink-faint); }
.deliverable p { font-size: 1rem; line-height: 1.7; color: var(--ink-soft); }
.deliverable strong { display: block; margin-bottom: 8px; font-family: var(--display); font-weight: 600; font-size: 1.25rem; line-height: 1.25; letter-spacing: -0.005em; color: var(--ink); }
@media (hover: hover) and (pointer: fine) {
  .deliverable:hover { transform: translateY(-4px); box-shadow: 0 0 0 1px var(--rule-strong), 0 2px 4px rgba(20,22,26,0.04), 0 30px 60px -30px rgba(20,22,26,0.32); }
  .deliverable:hover .deliverable-icon { background: var(--accent); color: #fff; }
}
@media (max-width: 780px) { .deliverables { grid-template-columns: 1fr; gap: 16px; } .deliverable { padding: 22px 20px 24px; } }

.fig-system { margin: 0; padding-bottom: 32px; }
.system-flow .flow-node { justify-content: flex-start; gap: 12px; padding: 20px 14px; transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out); transition-delay: calc(var(--n) * 120ms); }
.sys-edge { background: transparent; box-shadow: none; border: 1px dashed var(--rule-strong); opacity: 0; }
.sys-core { flex-grow: 1.5; background: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 18px 40px -24px rgba(30,58,99,0.7); color: #fff; opacity: 0; transform: scale(0.96); }
.sys-core small { color: rgba(255,255,255,0.72); }
.sys-edge .sys-not { margin-top: auto; color: var(--ink-soft); }
.chips, .sys-modules { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.chips > span { padding: 6px 10px; border-radius: 999px; background: var(--bg); box-shadow: 0 0 0 1px var(--rule-strong); font-size: 10.5px; }
.sys-modules { flex-direction: column; align-items: stretch; width: 100%; }
.sys-modules > span { padding: 10px 12px; border-radius: 8px; background: rgba(255,255,255,0.1); box-shadow: inset 0 0 0 1px rgba(255,255,255,0.28); font-size: 10.5px; }
.fig-system.is-in .flow-node { opacity: 1; transform: none; }
.fig-system .flow-link { transform: scaleX(0); transform-origin: 0 50%; transition: transform 600ms var(--ease-out); transition-delay: calc(500ms + var(--n) * 200ms); }
.fig-system.is-in .flow-link { transform: none; }
@media (max-width: 640px) { .fig-system .flow-link { transform: scaleY(0); transform-origin: 50% 0; } }

/* ---------- Pager ---------- */
.pager { padding: 80px 0 96px; }
.pager-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.pager-link {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 24px 26px; border-radius: 18px; background: var(--bg); color: var(--ink);
  box-shadow: 0 0 0 1px var(--rule), 0 1px 2px rgba(20,22,26,0.04), 0 14px 34px -22px rgba(20,22,26,0.2);
  transition: transform 300ms var(--ease-out), box-shadow 300ms var(--ease-out);
}
.pager-link:hover { text-decoration: none; }
.pager-link--next { grid-column: 2; }
.pager-text { display: flex; flex-direction: column; gap: 6px; }
.pager-link--next .pager-text { order: -1; }
.pager-dir { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-faint); }
.pager-title { font-family: var(--display); font-weight: 600; font-size: clamp(1.25rem, 2.4vw, 1.6rem); line-height: 1.2; letter-spacing: -0.01em; }
.pager-arrow { flex-shrink: 0; width: 40px; height: 40px; border-radius: 999px; display: grid; place-items: center; background: var(--ink); color: var(--bg); font-size: 15px; transition: transform 250ms var(--ease-out), background-color 200ms ease; }
.pager-cta { margin-top: 48px; display: flex; justify-content: center; }
@media (hover: hover) and (pointer: fine) {
  .pager-link:hover { transform: translateY(-4px); box-shadow: 0 0 0 1px var(--rule-strong), 0 2px 4px rgba(20,22,26,0.04), 0 30px 60px -30px rgba(20,22,26,0.32); }
  .pager-link--next:hover .pager-arrow { transform: translateX(3px); background: var(--accent); }
  .pager-link--prev:hover .pager-arrow { transform: translateX(-3px); background: var(--accent); }
}
@media (hover: none) { .pager-link:active { scale: 0.98; transition-duration: 100ms; } }
@media (max-width: 640px) {
  .pager { padding: 56px 0 64px; }
  .pager-grid { grid-template-columns: 1fr; gap: 12px; }
  .pager-link--next { grid-column: auto; }
}
@media (max-width: 860px) { .section { padding: 64px 0; } }

/* ---------- Preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .subnav-bar.is-moving { transition: none; }
  .fig, .fig * { animation: none !important; transition-delay: 0s !important; }
  .fig .flow-node, .fig .flow-link, .bar, .bar-callout, .loop-ring, .loop-node, .loop-label, .owner-cell, .owner-gap { transition: none !important; }
  .pulse, .gap-drop, .loop-orbit { display: none; }
  .statement p > span { opacity: 1; transition: none; }
  .faq-item::details-content { transition: none; }
  .deliverable, .pager-link, .pager-arrow { transition-property: box-shadow, background-color; }
  .deliverable:hover, .pager-link:hover, .pager-link:hover .pager-arrow { transform: none; }
}
@media print { .subnav, .process-rail { display: none; } }