:root {
  --bg: #0d0d0d;
  --surface: #191a1a;
  --paper: #fafaf9;
  --warm: #facf9f;
  --signal: #ff6123;
  --ink: #151515;
  --muted: #8b8b87;
  --line: rgba(250, 250, 249, 0.16);
  --paper-line: rgba(13, 13, 13, 0.18);
  --headline: "Space Grotesk", "Noto Sans SC", "PingFang SC", sans-serif;
  --body: "Inter", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  --max: 1320px;
  --ease: cubic-bezier(.25, 0, 0, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open { overflow: hidden; }

body::before {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  content: "";
  opacity: .018;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }
p, h1, h2, h3, h4 { margin-top: 0; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

::selection { background: var(--signal); color: var(--bg); }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1200;
  transform: translateY(-160%);
  background: var(--signal);
  color: var(--bg);
  padding: 12px 16px;
  font-weight: 700;
}

.skip-link:focus { transform: none; }

.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 800;
  border-bottom: 1px solid var(--line);
  background: rgba(13, 13, 13, .88);
  backdrop-filter: blur(16px);
}

.nav-shell {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 27px;
  height: 27px;
  position: relative;
  border: 1px solid var(--signal);
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  content: "";
  background: var(--signal);
}

.brand-mark::before { width: 1px; height: 35px; left: 12px; top: -5px; transform: rotate(45deg); }
.brand-mark::after { width: 9px; height: 1px; right: 3px; bottom: 5px; }

.brand-name { display: grid; line-height: 1; gap: 5px; }
.brand-name strong { font-family: var(--headline); font-size: 15px; letter-spacing: .08em; }
.brand-name small { color: var(--muted); font: 500 8px var(--mono); letter-spacing: .19em; }

.desktop-nav { display: flex; align-items: stretch; align-self: stretch; }
.nav-group { position: relative; display: flex; align-items: stretch; }
.nav-link,
.nav-trigger {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  border: 0;
  background: transparent;
  color: #b5b5b1;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
}

.nav-link:hover,
.nav-link.active,
.nav-trigger:hover,
.nav-group:focus-within .nav-trigger { color: var(--paper); }

.nav-trigger::after { content: "+"; color: var(--signal); margin-left: 8px; font-family: var(--mono); }
.nav-group:hover .nav-trigger::after,
.nav-group:focus-within .nav-trigger::after { content: "−"; }

.mega {
  position: absolute;
  top: calc(100% - 1px);
  left: 0;
  width: 420px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  background: var(--bg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 150ms var(--ease), transform 150ms var(--ease), visibility 150ms;
}

.nav-group:hover .mega,
.nav-group:focus-within .mega { opacity: 1; visibility: visible; transform: none; }

.mega a {
  min-height: 112px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 150ms var(--ease);
}

.mega a:nth-child(even) { border-right: 0; }
.mega a:hover { background: var(--surface); }
.mega b { display: block; font-family: var(--headline); font-size: 15px; }
.mega span { display: block; margin-top: 9px; color: var(--muted); font-size: 11px; line-height: 1.5; }

.nav-cta,
.button-outline,
.button-fill {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 0 18px;
  border: 1px solid var(--paper);
  background: transparent;
  color: var(--paper);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: background 150ms var(--ease), color 150ms var(--ease), border-color 150ms var(--ease);
}

.nav-cta:hover,
.button-outline:hover { background: var(--paper); color: var(--bg); }
.button-fill { border-color: var(--signal); background: var(--signal); color: var(--bg); }
.button-fill:hover { border-color: var(--paper); background: var(--paper); }
.button-arrow { font-family: var(--mono); font-size: 14px; }

.menu-toggle {
  width: 46px;
  height: 46px;
  display: none;
  place-items: center;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  width: 18px;
  height: 1px;
  display: block;
  background: var(--paper);
  transition: transform 150ms var(--ease), opacity 150ms var(--ease);
}

.menu-toggle span { position: relative; }
.menu-toggle span::before,
.menu-toggle span::after { position: absolute; left: 0; content: ""; }
.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }
.menu-toggle[aria-expanded="true"] span { background: transparent; }
.menu-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 77px 0 0;
  z-index: 790;
  display: none;
  overflow: auto;
  background: var(--bg);
  padding: 26px 24px 48px;
}

.mobile-menu.open { display: block; }
.mobile-menu nav { display: grid; }
.mobile-menu .mobile-section { border-top: 1px solid var(--line); padding: 18px 0; }
.mobile-menu small { color: var(--signal); font: 600 10px var(--mono); letter-spacing: .16em; }
.mobile-menu a { min-height: 48px; display: flex; align-items: center; justify-content: space-between; font-family: var(--headline); font-size: 20px; }
.mobile-menu a::after { content: "↗"; color: var(--muted); font: 14px var(--mono); }
.mobile-menu .button-fill { margin-top: 18px; width: 100%; font-family: var(--body); font-size: 12px; }

.page-hero {
  min-height: 760px;
  display: flex;
  align-items: flex-end;
  padding: 180px 0 76px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.page-hero.compact { min-height: 650px; }

.hero-grid,
.section-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.eyebrow {
  color: var(--signal);
  font: 600 10px/1.5 var(--mono);
  letter-spacing: .17em;
  text-transform: uppercase;
}

.hero-kicker { grid-column: 1 / span 3; align-self: start; padding-top: 12px; }
.hero-main { grid-column: 4 / -1; }

.display-title {
  max-width: 1100px;
  margin-bottom: 46px;
  font-family: var(--headline);
  font-size: clamp(54px, 8.7vw, 132px);
  font-weight: 500;
  letter-spacing: -.065em;
  line-height: .88;
}

.display-title .muted { color: #5b5b58; }
.display-title .warm { color: var(--warm); }
.display-title .signal { color: var(--signal); }

.hero-bottom {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 60px;
  align-items: end;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.hero-lead { max-width: 720px; margin: 0; color: #c5c5c0; font-size: clamp(17px, 1.6vw, 22px); line-height: 1.72; }
.hero-actions { display: flex; align-items: center; justify-content: flex-end; gap: 22px; }

.text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border-bottom: 2px solid var(--signal);
  font-size: 13px;
  font-weight: 700;
}
.text-link:hover { color: var(--warm); }

.hero-index {
  position: absolute;
  top: 120px;
  right: -1vw;
  z-index: -1;
  color: rgba(250, 250, 249, .025);
  font: 600 clamp(160px, 30vw, 520px)/.8 var(--headline);
  letter-spacing: -.09em;
  user-select: none;
}

.section { padding: 130px 0; border-bottom: 1px solid var(--line); }
.section.tight { padding: 88px 0; }
.section.paper { background: var(--paper); color: var(--ink); border-color: var(--paper-line); }
.section.surface { background: var(--surface); }
.section.signal { background: var(--signal); color: var(--bg); border-color: rgba(13,13,13,.22); }
.section.warm { background: var(--warm); color: var(--ink); border-color: rgba(13,13,13,.18); }

.section-label { grid-column: 1 / span 3; }
.section-content { grid-column: 4 / -1; }
.section-number { display: block; margin-bottom: 18px; color: var(--muted); font: 500 10px var(--mono); }
.paper .section-number { color: #777772; }

.section-title {
  max-width: 960px;
  margin-bottom: 34px;
  font-family: var(--headline);
  font-size: clamp(38px, 5vw, 72px);
  font-weight: 500;
  letter-spacing: -.05em;
  line-height: 1.02;
}

.section-intro { max-width: 720px; margin-bottom: 0; color: #a7a7a2; font-size: 18px; line-height: 1.8; }
.paper .section-intro, .warm .section-intro, .signal .section-intro { color: #555550; }

.rule-list { margin-top: 66px; border-top: 1px solid var(--line); }
.paper .rule-list, .warm .rule-list, .signal .rule-list { border-color: var(--paper-line); }

.rule-row {
  display: grid;
  grid-template-columns: 90px 1.1fr 1.7fr 44px;
  gap: 24px;
  align-items: start;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.paper .rule-row, .warm .rule-row, .signal .rule-row { border-color: var(--paper-line); }
.rule-row > span { color: var(--signal); font: 500 10px var(--mono); }
.signal .rule-row > span { color: var(--bg); }
.rule-row h3 { margin: 0; font-family: var(--headline); font-size: clamp(21px, 2.2vw, 30px); font-weight: 550; letter-spacing: -.03em; }
.rule-row p { margin: 0; color: var(--muted); line-height: 1.75; }
.paper .rule-row p, .warm .rule-row p, .signal .rule-row p { color: #5d5d58; }
.rule-row > i { font-style: normal; color: var(--muted); font-family: var(--mono); }

.cards-3,
.cards-2,
.cards-4 { display: grid; margin-top: 62px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.paper .cards-3, .paper .cards-2, .paper .cards-4 { border-color: var(--paper-line); }

.editorial-card {
  min-height: 410px;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 150ms var(--ease);
}
.paper .editorial-card { border-color: var(--paper-line); }
.editorial-card:hover { background: rgba(250,250,249,.035); }
.paper .editorial-card:hover { background: #efefec; }
.editorial-card .card-no { color: var(--signal); font: 500 10px var(--mono); letter-spacing: .1em; }
.editorial-card .card-label { margin-top: 8px; color: var(--muted); font: 500 10px var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.editorial-card h3 { margin: auto 0 18px; font-family: var(--headline); font-size: 28px; font-weight: 550; letter-spacing: -.04em; line-height: 1.08; }
.editorial-card p { margin-bottom: 0; color: var(--muted); font-size: 14px; line-height: 1.78; }
.paper .editorial-card p { color: #666660; }
.editorial-card .card-link { min-height: 44px; display: flex; align-items: flex-end; justify-content: space-between; margin-top: 28px; border-top: 1px solid var(--line); padding-top: 18px; font-size: 12px; font-weight: 700; }
.paper .editorial-card .card-link { border-color: var(--paper-line); }
.editorial-card .card-link span:last-child { color: var(--signal); font-family: var(--mono); }

.rail {
  margin-top: 64px;
  border: 1px solid var(--line);
}
.paper .rail { border-color: var(--paper-line); }
.rail-row {
  display: grid;
  grid-template-columns: 190px 1.15fr 1.85fr;
  min-height: 174px;
  border-bottom: 1px solid var(--line);
}
.paper .rail-row { border-color: var(--paper-line); }
.rail-row:last-child { border-bottom: 0; }
.rail-row > * { padding: 28px; border-right: 1px solid var(--line); }
.paper .rail-row > * { border-color: var(--paper-line); }
.rail-row > *:last-child { border-right: 0; }
.rail-row .rail-code { color: var(--signal); font: 600 11px var(--mono); letter-spacing: .12em; }
.rail-row h3 { margin: 0; font-family: var(--headline); font-size: 24px; font-weight: 550; letter-spacing: -.03em; }
.rail-row p { margin: 0; color: var(--muted); line-height: 1.75; }
.paper .rail-row p { color: #666660; }

.architecture-map { margin-top: 64px; border: 1px solid var(--line); background: #111; }
.map-head { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line); }
.map-head > div { padding: 24px; border-right: 1px solid var(--line); }
.map-head > div:last-child { border-right: 0; }
.map-head span { display: block; color: var(--signal); font: 600 10px var(--mono); letter-spacing: .12em; }
.map-head strong { display: block; margin-top: 10px; font-family: var(--headline); font-size: 24px; }
.map-band { display: grid; grid-template-columns: 180px 1fr; border-bottom: 1px solid var(--line); }
.map-band:last-child { border-bottom: 0; }
.map-band > header { padding: 24px; border-right: 1px solid var(--line); }
.map-band > header span { color: var(--muted); font: 500 9px var(--mono); }
.map-band > header h3 { margin: 12px 0 0; font-family: var(--headline); font-size: 18px; }
.map-nodes { display: grid; grid-template-columns: repeat(4, 1fr); }
.map-node { min-height: 126px; padding: 22px; border-right: 1px solid var(--line); }
.map-node:last-child { border-right: 0; }
.map-node b { display: block; font-size: 13px; }
.map-node small { display: block; margin-top: 10px; color: var(--muted); line-height: 1.55; }
.map-band.core { background: var(--paper); color: var(--ink); }
.map-band.core .map-node, .map-band.core > header { border-color: var(--paper-line); }
.map-band.core .map-node small { color: #666660; }

.split-panel { display: grid; grid-template-columns: 1fr 1fr; margin-top: 64px; border: 1px solid var(--line); }
.split-panel article { min-height: 430px; display: flex; flex-direction: column; padding: 36px; border-right: 1px solid var(--line); }
.split-panel article:last-child { border-right: 0; }
.split-panel article.light { background: var(--paper); color: var(--ink); }
.split-panel .eyebrow { margin-bottom: 110px; }
.split-panel h3 { font-family: var(--headline); font-size: 38px; font-weight: 550; letter-spacing: -.04em; }
.split-panel p { color: var(--muted); line-height: 1.75; }
.split-panel article.light p { color: #5e5e59; }
.split-panel ul { margin: 24px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.split-panel article.light ul { border-color: var(--paper-line); }
.split-panel li { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.split-panel article.light li { border-color: var(--paper-line); }

.metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 54px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.metric { min-height: 160px; padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric b { display: block; font-family: var(--headline); font-size: 26px; font-weight: 550; }
.metric span { display: block; margin-top: 38px; color: var(--muted); font-size: 12px; line-height: 1.55; }

.comparison { margin-top: 60px; overflow-x: auto; border: 1px solid var(--line); }
.comparison table { width: 100%; min-width: 820px; border-collapse: collapse; }
.comparison th, .comparison td { padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.comparison tr:last-child td { border-bottom: 0; }
.comparison th:last-child, .comparison td:last-child { border-right: 0; }
.comparison th { color: var(--signal); font: 600 10px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.comparison td { color: #b5b5b0; font-size: 13px; line-height: 1.65; }
.comparison td:first-child { color: var(--paper); font-weight: 700; }
.paper .comparison { border-color: var(--paper-line); }
.paper .comparison th, .paper .comparison td { border-color: var(--paper-line); }
.paper .comparison td { color: #5e5e59; }
.paper .comparison td:first-child { color: var(--ink); }

.process { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 62px; }
.process article { min-height: 290px; position: relative; padding: 28px 28px 28px 0; border-top: 1px solid var(--line); }
.process article::before { position: absolute; top: -4px; right: 28px; width: 7px; height: 7px; content: ""; background: var(--signal); }
.process span { color: var(--signal); font: 500 10px var(--mono); }
.process h3 { margin-top: 70px; font-family: var(--headline); font-size: 22px; font-weight: 550; }
.process p { color: var(--muted); font-size: 13px; line-height: 1.72; }

.quote-block { padding: 130px 0; background: var(--paper); color: var(--ink); }
.quote-block blockquote { max-width: 1180px; margin: 0; font-family: var(--headline); font-size: clamp(38px, 6vw, 84px); font-weight: 500; letter-spacing: -.055em; line-height: 1.04; }
.quote-block blockquote span { color: var(--signal); }
.quote-block p { max-width: 520px; margin: 40px 0 0 auto; color: #5e5e59; line-height: 1.8; }

.resource-list { margin-top: 60px; }
.resource-item {
  min-height: 140px;
  display: grid;
  grid-template-columns: 100px 1.2fr 1.6fr 80px;
  gap: 28px;
  align-items: center;
  border-top: 1px solid var(--line);
  transition: background 150ms var(--ease);
}
.resource-item:last-child { border-bottom: 1px solid var(--line); }
.resource-item:hover { background: var(--surface); }
.resource-item > span { color: var(--signal); font: 500 10px var(--mono); }
.resource-item h3 { margin: 0; font-family: var(--headline); font-size: 24px; font-weight: 550; }
.resource-item p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.resource-item i { color: var(--signal); font: 18px var(--mono); font-style: normal; text-align: center; }

.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; margin-top: 64px; }
.contact-note { color: var(--muted); line-height: 1.8; }
.contact-meta { margin-top: 44px; border-top: 1px solid var(--line); }
.contact-meta div { display: grid; grid-template-columns: 110px 1fr; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.contact-meta span { color: var(--muted); }

.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.field { display: grid; gap: 9px; }
.field.full { grid-column: 1 / -1; }
.field label { color: #a9a9a4; font: 500 10px var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.field input, .field textarea, .field select {
  width: 100%;
  min-height: 52px;
  border: 0;
  border-bottom: 1px solid #4b4b47;
  border-radius: 0;
  background: transparent;
  color: var(--paper);
  padding: 12px 0;
  outline: 0;
}
.field textarea { min-height: 118px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--signal); }
.field select option { background: var(--bg); }
.form-actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 20px; margin-top: 10px; }
.form-actions small { color: var(--muted); line-height: 1.5; }

.final-cta { padding: 130px 0; background: var(--signal); color: var(--bg); }
.final-cta .eyebrow { color: var(--bg); }
.final-cta h2 { max-width: 1080px; margin: 24px 0 48px; font-family: var(--headline); font-size: clamp(46px, 7vw, 94px); font-weight: 550; letter-spacing: -.06em; line-height: .97; }
.final-cta .button-outline { border-color: var(--bg); color: var(--bg); }
.final-cta .button-outline:hover { background: var(--bg); color: var(--signal); }

.site-footer { padding: 76px 0 24px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(4, 1fr); gap: 46px; }
.footer-brand p { max-width: 320px; margin: 24px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.footer-col { display: grid; align-content: start; gap: 10px; }
.footer-col span { margin-bottom: 10px; color: #5d5d59; font: 600 9px var(--mono); letter-spacing: .12em; }
.footer-col a { min-height: 34px; display: flex; align-items: center; color: #a6a6a1; font-size: 12px; }
.footer-col a:hover { color: var(--paper); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 68px; padding-top: 20px; border-top: 1px solid var(--line); color: #61615d; font: 500 9px var(--mono); letter-spacing: .06em; }

.reveal { opacity: 1; transform: none; }
.reveal.visible { opacity: 1; transform: none; }

.tag-green { color: #89c49c !important; }
.tag-blue { color: #8da7ff !important; }
.tag-violet { color: #b69aff !important; }

@media (max-width: 1120px) {
  .desktop-nav, .site-header .nav-cta { display: none; }
  .menu-toggle { display: grid; }
  .hero-kicker, .section-label { grid-column: 1 / span 3; }
  .hero-main, .section-content { grid-column: 4 / -1; }
  .display-title { font-size: clamp(54px, 9.3vw, 102px); }
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 2fr repeat(2, 1fr); }
  .footer-col:nth-child(n+4) { margin-top: 28px; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 36px), var(--max)); }
  .page-hero, .page-hero.compact { min-height: 690px; padding-top: 140px; }
  .hero-kicker, .hero-main, .section-label, .section-content { grid-column: 1 / -1; }
  .hero-kicker { margin-bottom: 42px; }
  .display-title { font-size: clamp(48px, 14vw, 86px); }
  .hero-bottom { grid-template-columns: 1fr; gap: 34px; }
  .hero-actions { justify-content: flex-start; flex-wrap: wrap; }
  .section { padding: 92px 0; }
  .section-label { margin-bottom: 38px; }
  .rule-row { grid-template-columns: 54px 1fr; }
  .rule-row p { grid-column: 2; }
  .rule-row > i { display: none; }
  .cards-3, .cards-2 { grid-template-columns: 1fr; }
  .editorial-card { min-height: 330px; }
  .rail-row { grid-template-columns: 100px 1fr; }
  .rail-row p { grid-column: 1 / -1; border-top: 1px solid var(--line); }
  .paper .rail-row p { border-color: var(--paper-line); }
  .map-head { grid-template-columns: 1fr; }
  .map-head > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .map-head > div:last-child { border-bottom: 0; }
  .map-band { grid-template-columns: 1fr; }
  .map-band > header { border-right: 0; border-bottom: 1px solid var(--line); }
  .map-nodes { grid-template-columns: repeat(2, 1fr); }
  .map-node:nth-child(2) { border-right: 0; }
  .map-node:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .split-panel { grid-template-columns: 1fr; }
  .split-panel article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .split-panel article:last-child { border-bottom: 0; }
  .split-panel .eyebrow { margin-bottom: 60px; }
  .metric-strip { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .resource-item { grid-template-columns: 64px 1fr 50px; padding: 24px 0; }
  .resource-item p { grid-column: 2; }
  .resource-item i { grid-column: 3; grid-row: 1 / span 2; }
  .contact-layout { grid-template-columns: 1fr; gap: 55px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .nav-shell { min-height: 68px; }
  .mobile-menu { inset: 69px 0 0; }
  .brand-name small { display: none; }
  .page-hero, .page-hero.compact { min-height: 650px; padding: 120px 0 52px; }
  .display-title { font-size: clamp(46px, 15vw, 70px); line-height: .92; }
  .hero-bottom { padding-top: 26px; }
  .hero-lead { font-size: 17px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button-fill, .hero-actions .button-outline { width: 100%; }
  .section { padding: 76px 0; }
  .section-title { font-size: 38px; }
  .section-intro { font-size: 16px; }
  .rule-row { gap: 16px; padding: 24px 0; }
  .rule-row p { grid-column: 1 / -1; }
  .cards-4 { grid-template-columns: 1fr; }
  .editorial-card { min-height: 310px; padding: 24px; }
  .rail-row { grid-template-columns: 74px 1fr; }
  .rail-row > * { padding: 20px; }
  .map-nodes { grid-template-columns: 1fr; }
  .map-node { border-right: 0; border-bottom: 1px solid var(--line); }
  .map-node:last-child { border-bottom: 0; }
  .map-node:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .metric-strip { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .process article { min-height: 220px; }
  .resource-item { grid-template-columns: 45px 1fr 32px; gap: 12px; }
  .resource-item h3 { font-size: 20px; }
  .contact-form { grid-template-columns: 1fr; }
  .field.full, .form-actions { grid-column: 1; }
  .form-actions { align-items: stretch; flex-direction: column; }
  .final-cta { padding: 88px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-col:nth-child(n+4) { margin-top: 0; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}