@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --color-page: #FFFFFF;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F4F8F8;
  --color-surface-deep: #0A2E3A;
  --color-ink: #07161C;
  --color-text: #1A2A30;
  --color-muted: #5A6B70;
  --color-line: #E2EBEB;
  --color-line-strong: #0A2E3A;
  --color-brand: #12C5B8;
  --color-brand-hover: #0E8F88;
  --color-brand-deep: #0A2E3A;
  --color-brand-soft: #E7F8F6;
  --color-focus: #12C5B8;
  --nav-height: 72px;
  --container: 1200px;
  --shadow: 0 1px 2px rgba(7, 22, 28, .05);
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-page);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}
body.nav-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

.skip-link {
  position: fixed; z-index: 2000; top: -100px; left: 20px;
  padding: 9px 14px; color: #fff; background: var(--color-ink);
  text-decoration: none; font-size: 13px;
}
.skip-link:focus { top: 16px; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }

#site-header {
  position: fixed; z-index: 1005; top: 0; left: 0; right: 0;
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(255,255,255,.9);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  transition: background .25s ease, border-color .25s ease;
}
  #site-header.scrolled { background: rgba(255,255,255,.97); border-bottom-color: var(--color-line); }
  #siteHeader.scrolled { background: rgba(255,255,255,.97); }
.site-header { display: flex; align-items: center; justify-content: center; height: var(--nav-height); }
.page-shell { padding-top: calc(var(--nav-height) + env(safe-area-inset-top, 0px)); }
.nav-inner--minimal {
  display: grid; grid-template-columns: minmax(0,1fr) auto minmax(0,1fr);
  align-items: center; gap: 24px; height: 100%;
}
.nav-logo {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; justify-self: start;
  transition: transform .22s ease;
}
.nav-logo-img { width: 42px; height: 42px; object-fit: contain; }
.nav-logo-text {
  color: var(--color-ink); font-family: var(--font-display);
  font-weight: 800; font-size: 17px; letter-spacing: .08em;
  white-space: nowrap;
}
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu--minimal { grid-column: 2; justify-self: center; }
.nav-link, .nav-dropdown-toggle {
  display: inline-flex; align-items: center; gap: 5px; min-height: 40px;
  padding: 5px 12px; color: var(--color-muted); background: none; border: 0;
  border-bottom: 2px solid transparent;
  font: 500 15px/1.5 var(--font-body); text-decoration: none; cursor: pointer;
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}
.nav-link:hover, .nav-dropdown:hover .nav-dropdown-toggle {
  color: var(--color-ink); background: var(--color-surface-alt);
}
.nav-link.active,
.nav-dropdown.is-group-active .nav-dropdown-toggle {
  color: var(--color-ink); font-weight: 600;
  background: var(--color-brand-soft); border-bottom-color: var(--color-brand);
}
.nav-dropdown { position: relative; }
.nav-dropdown-toggle svg { width: 10px; height: 10px; transition: transform .2s ease; }
.nav-dropdown:hover .nav-dropdown-toggle svg,
.nav-dropdown.open .nav-dropdown-toggle svg { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute; top: calc(100% + 7px); left: 50%; min-width: 260px;
  padding: 8px; opacity: 0; visibility: hidden; transform: translate(-50%, 8px);
  background: #fff; border: 1px solid var(--color-line);
  box-shadow: 0 16px 36px rgba(7,22,28,.08);
  transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
}
.nav-dropdown:hover .nav-dropdown-menu, .nav-dropdown.open .nav-dropdown-menu {
  opacity: 1; visibility: visible; transform: translate(-50%, 0);
}
.nav-dropdown-item {
  display: block; padding: 10px 13px 10px 10px; color: var(--color-text);
  border-left: 3px solid transparent; font-size: 13px; text-decoration: none;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
}
.nav-dropdown-item:hover { background: var(--color-surface-alt); }
.nav-dropdown-item.active {
  color: var(--color-ink); font-weight: 700;
  border-left-color: var(--color-brand); background: var(--color-brand-soft);
}
.nav-actions { grid-column: 3; justify-self: end; display: flex; align-items: center; gap: 12px; }
.lang-switcher {
  display: inline-flex; padding: 2px; border: 1px solid var(--color-line); background: #fff;
}
.lang-option {
  min-width: 44px; min-height: 32px; border: 0; background: transparent;
  color: var(--color-muted); font: 600 11px/1 var(--font-mono); cursor: pointer;
  transition: color .18s ease, background .18s ease;
}
.lang-option.is-active { color: var(--color-ink); background: var(--color-brand); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
  padding: 10px 20px; border: 1px solid transparent; border-radius: 4px;
  font: 600 14px/1.2 var(--font-body); text-decoration: none; cursor: pointer;
  touch-action: manipulation;
  transition: background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn-primary { color: var(--color-ink); background: var(--color-brand); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }
.btn-secondary { color: var(--color-ink); background: transparent; border-color: var(--color-line-strong); }
.nav-cta { min-height: 36px; padding: 7px 16px; font-size: 12px; border-radius: 999px; }
.nav-toggle {
  display: none; width: 44px; height: 44px; padding: 0; border: 0; background: none;
  cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  transition: background .2s ease;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--color-ink); pointer-events: none; transition: transform .22s ease, opacity .22s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-menu--drawer, .nav-backdrop { display: none; }

h1, h2, h3 { margin: 0; color: var(--color-ink); letter-spacing: -.03em; font-family: var(--font-display); }
h1 { font-weight: 800; font-size: clamp(34px, 4.6vw, 56px); line-height: 1.08; }
h2 { font-weight: 700; font-size: clamp(24px, 2.8vw, 38px); line-height: 1.18; }
h3 { font-weight: 600; font-size: clamp(18px, 1.6vw, 22px); line-height: 1.3; }
p { margin: 0; }
.eyebrow, .section-kicker {
  margin: 0 0 12px; color: var(--color-brand-hover);
  font: 500 11px/1.4 var(--font-mono); letter-spacing: .14em; text-transform: uppercase;
}
.section { padding: 88px 0; }
.section--alt { background: var(--color-surface-alt); }
.lede { color: var(--color-muted); font-size: 17px; line-height: 1.75; max-width: 38rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

/* Triple isolation columns */
.iso-mast {
  padding: 48px 0 56px;
}
.iso-cols {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  margin-top: 40px;
  border: 1px solid var(--color-line);
}
.iso-col {
  position: relative;
  min-width: 0;
  padding: 36px 32px 44px;
  border-right: 1px solid var(--color-line);
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 14px;
  --mx: 50%;
  --my: 0%;
  overflow: hidden;
  transition: opacity .25s ease, background .25s ease, box-shadow .25s ease;
}
.iso-col::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 0;
  background: var(--color-brand);
  transition: height .22s ease;
  z-index: 1;
}
.iso-col::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(18, 197, 184, .16), transparent 58%);
  transition: opacity .25s ease;
}
.iso-col > * { position: relative; z-index: 2; }
.iso-board .iso-col.is-live::before { height: 3px; }
.iso-col:last-child { border-right: 0; }
.iso-col h2, .iso-col h3 { font-size: clamp(22px, 2vw, 28px); }
.iso-col p { color: var(--color-muted); font-size: 15px; overflow-wrap: break-word; }
.iso-meta {
  font: 500 11px/1.5 var(--font-mono); color: var(--color-ink);
  letter-spacing: .04em; text-transform: uppercase;
}
.iso-gate {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--color-line);
  font: 500 12px/1.5 var(--font-mono); color: var(--color-brand-hover);
}
.iso-gate strong { display: block; color: var(--color-ink); font-size: 13px; margin-bottom: 4px; }
.iso-arrow {
  display: inline-block; margin: 0 4px;
  color: var(--color-brand);
  transition: transform .22s ease;
}

.iso-board .iso-col { cursor: pointer; min-height: 100%; }
.iso-board .iso-col.is-dim { opacity: .28; }
.iso-board .iso-col.is-live {
  opacity: 1;
  background: var(--color-brand-soft);
  box-shadow: inset 0 3px 0 var(--color-brand);
}

/* Friction as failure rows — not cards */
.fail-stack { border-top: 1px solid var(--color-line); }
.fail-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
  position: relative;
  transition: background .22s ease, padding-left .22s ease;
}
.fail-row b {
  font: 600 12px/1.4 var(--font-mono); color: var(--color-ink);
  letter-spacing: .08em;
}
.fail-row p { color: var(--color-muted); }

/* Protocol figure plates */
.figure-plate {
  margin: 0;
  background: #07161C;
  border: 1px solid var(--color-line-strong);
  position: relative;
  overflow: hidden;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.figure-plate img {
  width: 100%; height: auto; display: block;
  transition: transform .55s cubic-bezier(.16, 1, .3, 1), filter .4s ease;
}
.figure-plate figcaption {
  padding: 12px 16px;
  background: #fff;
  border-top: 1px solid var(--color-line);
  font: 500 12px/1.5 var(--font-mono); color: var(--color-muted);
}
.split-figure {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: center;
}

.degrade-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--color-line);
}
.degrade-cell {
  padding: 18px 16px;
  border-right: 1px solid var(--color-line);
  position: relative;
  --mx: 50%;
  --my: 40%;
  overflow: hidden;
  transition: background .22s ease;
}
.degrade-cell::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(280px circle at var(--mx) var(--my), rgba(18, 197, 184, .18), transparent 62%);
  transition: opacity .22s ease;
}
.degrade-cell:last-child { border-right: 0; }
.degrade-cell span {
  display: block; margin-bottom: 6px;
  font: 600 11px var(--font-mono); color: var(--color-brand-hover);
}
.degrade-cell strong { display: block; font-size: 16px; }
.degrade-cell p { margin-top: 6px; font-size: 13px; color: var(--color-muted); }

.iso-dots {
  display: none;
  justify-content: center; gap: 8px; padding: 20px 0 0;
}
.iso-dots button {
  width: 8px; height: 8px; padding: 0; border: 0; border-radius: 0;
  background: var(--color-line); cursor: pointer;
  transition: background .18s ease, transform .18s ease;
}
.iso-dots button.is-on { background: var(--color-brand); }

.cta-band {
  display: grid; grid-template-columns: 1fr auto;
  gap: 24px; align-items: center;
  padding: 36px 0;
  border-top: 1px solid var(--color-line);
}
.cta-band p { color: var(--color-muted); margin-top: 8px; }

/* About / Contact — leave three-col */
.read-hero { padding: 64px 0 24px; }
.read-hero h1 { max-width: 18ch; }
.read-grid {
  display: grid;
  grid-template-columns: minmax(0, .38fr) minmax(0, .62fr);
  gap: 48px;
}
.clause {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-line);
  position: relative;
  transition: background .22s ease, padding-left .22s ease;
}
.clause:first-of-type { border-top: 1px solid var(--color-line); }
.clause p, .stack-copy p, .fail-row p { color: var(--color-muted); }
.clause p { margin-top: 8px; }
.stack-copy p + p { margin-top: 14px; }
.stack-copy { max-width: 42rem; }
.epoch-row {
  display: grid; grid-template-columns: 64px 1fr;
  gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--color-line);
  position: relative;
  transition: background .22s ease, padding-left .22s ease;
}
.epoch-row span { font: 600 13px var(--font-mono); color: var(--color-brand-hover); }
.epoch-row p { color: var(--color-muted); font-size: 15px; }

.tech-block {
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
  position: relative;
  transition: background .22s ease, padding-left .22s ease;
}
.tech-block p { color: var(--color-muted); margin-top: 8px; }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 48px; align-items: start; padding-bottom: 88px;
}
.form-panel {
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-brand);
  padding: 28px 24px;
  background: #fff;
  --mx: 50%;
  --my: 0%;
  position: relative;
  transition: border-color .22s ease, box-shadow .22s ease;
}
.form-panel::after {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(460px circle at var(--mx) var(--my), rgba(18, 197, 184, .12), transparent 60%);
  transition: opacity .25s ease;
}
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font: 600 13px var(--font-body); }
.form-group input, .form-group textarea, .select-trigger {
  width: 100%; min-height: 48px; padding: 12px 14px;
  border: 1px solid var(--color-line); border-radius: 4px;
  background: #fff; color: var(--color-ink); font: 400 16px var(--font-body);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-group input:focus, .form-group textarea:focus, .select-trigger:focus {
  outline: none; border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(18,197,184,.18);
}
.form-error { display: none; margin: 6px 0 0; color: #DC2626; font-size: 13px; }
.form-error.is-visible { display: block; }
.form-success { display: none; margin-top: 14px; color: var(--color-brand-hover); font-weight: 600; }
.form-success.is-visible { display: block; }
.custom-select { position: relative; }
.custom-select select { position: absolute; opacity: 0; pointer-events: none; }
.select-trigger {
  display: flex; align-items: center; justify-content: space-between;
  text-align: left; cursor: pointer;
}
.select-options {
  display: none; position: absolute; z-index: 8; left: 0; right: 0; top: calc(100% + 4px);
  background: #fff; border: 1px solid var(--color-line);
}
.custom-select.is-open .select-options { display: block; }
.select-options button {
  display: block; width: 100%; padding: 12px 14px; border: 0; background: none;
  text-align: left; font: 400 15px var(--font-body); cursor: pointer;
}
.select-options button:hover, .select-options button[aria-selected="true"] {
  background: var(--color-brand-soft);
}

.comp-hero { padding: 64px 0 32px; border-bottom: 1px solid var(--color-line); }
.compliance-workspace { padding: 48px 0 96px; }
.comp-rail {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-bottom: 40px; border: 1px solid var(--color-line);
}
.comp-rail a {
  padding: 16px 12px; text-decoration: none; border-right: 1px solid var(--color-line);
  min-height: 72px; display: flex; flex-direction: column; gap: 6px;
  transition: background .2s ease, box-shadow .2s ease, color .2s ease;
}
.comp-rail a:last-child { border-right: 0; }
.comp-rail a span { font: 500 11px var(--font-mono); color: var(--color-muted); }
.comp-rail a strong { font: 600 13px/1.3 var(--font-display); }
.comp-rail a.is-active { background: var(--color-brand-soft); box-shadow: inset 0 -3px 0 var(--color-brand); }
.comp-sheet {
  padding: 32px 0 36px;
  border-left: 3px solid var(--color-brand);
  padding-left: 24px;
  margin-bottom: 28px;
}
.comp-sheet h2 { font-size: clamp(22px, 2.4vw, 30px); margin: 8px 0 16px; }
.comp-sheet > p { color: var(--color-muted); margin-bottom: 20px; }
.comp-sheet ol { margin: 0; padding: 0; list-style: none; }
.comp-sheet li {
  display: grid; grid-template-columns: 28px 1fr; gap: 14px;
  padding: 14px 0; border-bottom: 1px solid var(--color-line);
  font-size: 15px;
  transition: background .2s ease, padding-left .2s ease;
}
.pending-note {
  margin-top: 16px; padding: 16px 18px;
  background: var(--color-surface-alt); border: 1px dashed var(--color-line);
  color: var(--color-muted); font-size: 14px;
}

.site-footer {
  background: linear-gradient(180deg, #0A2E3A, #07161C);
  color: rgba(255,255,255,.72); padding: 48px 0 0;
}
.footer-tagline {
  font: 500 12px/1.6 var(--font-mono); letter-spacing: .06em;
  padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,.12);
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px; padding: 40px 0;
}
.footer-brand .nav-logo-text { color: #fff; }
.footer-brand p { margin-top: 14px; max-width: 28rem; font-size: 14px; }
.footer-col h4 {
  margin: 0 0 16px; color: #fff;
  font: 600 12px var(--font-mono); letter-spacing: .12em; text-transform: uppercase;
}
.footer-col a {
  display: block; margin-bottom: 8px; color: rgba(255,255,255,.7);
  text-decoration: none; font-size: 13px;
  transition: color .2s ease, transform .2s ease;
}
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  padding: 18px 0 calc(28px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: 13px; color: rgba(255,255,255,.4);
}

@media (max-width: 1100px) {
  :root { --nav-height: 64px; }
  .nav-inner--minimal {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
  }
  .nav-menu--minimal, .nav-actions .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-actions { grid-column: 2; gap: 8px; }
  .nav-backdrop {
    display: block; position: fixed; inset: 0; z-index: 1003;
    background: rgba(7,22,28,.35); opacity: 0; pointer-events: none;
  }
  .nav-backdrop.is-open { opacity: 1; pointer-events: auto; }
  .nav-menu--drawer {
    display: flex; flex-direction: column;
    position: fixed; z-index: 1004; top: 0; right: 0;
    width: min(360px, 88vw); height: 100%;
    padding: calc(var(--nav-height) + env(safe-area-inset-top, 0px) + 16px) 0 calc(20px + env(safe-area-inset-bottom, 0px));
    background: #fff; border-left: 1px solid var(--color-line);
    transform: translate3d(100%, 0, 0); transition: transform .28s ease;
    overflow-y: auto; pointer-events: none;
  }
  .nav-menu--drawer.open { transform: none; pointer-events: auto; }
  .lang-switcher--drawer { margin: 0 24px 24px; }
  .nav-menu--drawer .nav-dropdown, .nav-menu--drawer > .nav-link { width: 100%; border-bottom: 1px solid var(--color-line); }
  .nav-menu--drawer .nav-link, .nav-menu--drawer .nav-dropdown-toggle {
    display: flex; width: 100%; justify-content: space-between; min-height: 56px;
    padding: 14px 24px; border: 0; background: none;
    font: 600 15px var(--font-body); color: var(--color-ink);
  }
  .nav-menu--drawer .nav-dropdown-menu { display: none !important; position: static !important; transform: none !important; opacity: 1 !important; visibility: visible !important; box-shadow: none; border: 0; width: 100%; background: var(--color-surface-alt); }
  .nav-menu--drawer .nav-dropdown.open .nav-dropdown-menu { display: block !important; }
  .nav-menu--drawer .nav-dropdown-item { padding: 12px 24px 12px 36px; min-height: 44px; }
  .nav-mobile-cta { width: calc(100% - 48px); margin: 28px 24px 8px; min-height: 52px; }
}

@media (max-width: 1024px) {
  .split-figure, .read-grid, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .iso-cols { grid-template-columns: 1fr; }
  .iso-col {
    padding: 28px 20px 32px;
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
    min-height: 0;
  }
  .iso-col:last-child { border-bottom: 0; }
  .iso-board .iso-col.is-dim { opacity: 1; }
  .iso-dots { display: none; }
  .fail-row { grid-template-columns: 1fr; gap: 8px; }
  .cta-band { grid-template-columns: 1fr; }
  .comp-rail { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .comp-rail a { border-right: 1px solid var(--color-line); }
  .comp-rail a:nth-child(3n) { border-right: 0; }
  .comp-rail a:nth-child(n+4) { border-top: 1px solid var(--color-line); }
  .degrade-strip { grid-template-columns: 1fr 1fr; }
  .degrade-cell { border-right: 1px solid var(--color-line); }
  .degrade-cell:nth-child(2n) { border-right: 0; }
  .degrade-cell:nth-child(n+3) { border-top: 1px solid var(--color-line); }
}

@media (max-width: 768px) {
  .container { width: min(100% - 40px, var(--container)); }
  .section { padding: 56px 0; }
  .iso-mast, .read-hero, .comp-hero { padding-top: 36px; padding-bottom: 28px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .lede { font-size: 16px; max-width: none; }
  .read-hero h1 { max-width: none; }
  .form-panel { padding: 22px 16px; }
  .comp-sheet { padding-left: 16px; }
  .comp-rail { grid-template-columns: 1fr 1fr; }
  .comp-rail a { border-right: 1px solid var(--color-line); }
  .comp-rail a:nth-child(2n) { border-right: 0; }
  .comp-rail a:nth-child(3n) { border-right: 1px solid var(--color-line); }
  .comp-rail a:nth-child(n+3) { border-top: 1px solid var(--color-line); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px 20px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col { min-width: 0; }
  .contact-grid { padding-bottom: 56px; }
}

@media (max-width: 480px) {
  :root { --nav-height: 60px; }
  .container { width: min(100% - 28px, var(--container)); }
  h1 { font-size: clamp(28px, 8.4vw, 40px); }
  .nav-logo-img { width: 36px; height: 36px; }
  .degrade-strip, .comp-rail { grid-template-columns: 1fr; }
  .degrade-cell, .comp-rail a {
    border-right: 0;
    border-top: 1px solid var(--color-line);
  }
  .degrade-cell:first-child, .comp-rail a:first-child { border-top: 0; }
  .footer-bottom { flex-direction: column; }
}

.fail-row::before,
.clause::before,
.epoch-row::before,
.tech-block::before {
  content: "";
  position: absolute;
  left: 0; top: 10px; bottom: 10px;
  width: 0;
  background: var(--color-brand);
  transition: width .2s ease;
}

.figure-plate figcaption { transition: color .22s ease, background .22s ease; }

@media (hover: hover) and (pointer: fine) {
  .nav-logo:hover { transform: translateY(-1px); }
  .nav-dropdown-item:hover { border-left-color: var(--color-brand); }
  .lang-option:hover:not(.is-active) { background: var(--color-surface-alt); color: var(--color-ink); }
  .btn-primary:hover {
    background: var(--color-brand-hover); color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(18, 197, 184, .28);
  }
  .btn-secondary:hover {
    color: #fff; background: var(--color-ink);
    transform: translateY(-1px);
  }
  .nav-toggle:hover { background: var(--color-surface-alt); }
  .iso-col:hover { background: var(--color-brand-soft); }
  .iso-col:hover::before { height: 3px; }
  .iso-col:hover::after { opacity: 1; }
  .iso-col:hover .iso-arrow { transform: translateX(4px); }
  .iso-board .iso-col.is-dim:hover { opacity: .72; }
  .fail-row:hover,
  .clause:hover,
  .epoch-row:hover,
  .tech-block:hover {
    background: var(--color-brand-soft);
    padding-left: 14px;
  }
  .fail-row:hover::before,
  .clause:hover::before,
  .epoch-row:hover::before,
  .tech-block:hover::before { width: 3px; }
  .figure-plate:hover {
    border-color: var(--color-brand);
    box-shadow: 0 0 0 1px var(--color-brand);
  }
  .figure-plate:hover img { transform: scale(1.025); filter: saturate(1.08); }
  .figure-plate:hover figcaption { color: var(--color-ink); }
  .degrade-cell:hover { background: var(--color-brand-soft); }
  .degrade-cell:hover::after { opacity: 1; }
  .iso-dots button:hover { transform: scale(1.35); background: var(--color-brand); }
  .form-panel:hover { border-color: #c5d6d4; }
  .form-panel:hover::after { opacity: 1; }
  .form-group input:hover, .form-group textarea:hover, .select-trigger:hover {
    border-color: #c5d6d4;
  }
  .comp-rail a:hover { background: var(--color-surface-alt); }
  .comp-rail a.is-active:hover { background: var(--color-brand-soft); }
  .comp-sheet li:hover { background: var(--color-brand-soft); padding-left: 10px; }
  .footer-col a:hover { color: var(--color-brand); transform: translateX(6px); }
  .nav-menu--drawer .nav-link:hover,
  .nav-menu--drawer .nav-dropdown-toggle:hover { background: var(--color-brand-soft); }
}

.iso-col.is-press,
.degrade-cell.is-press,
.fail-row.is-press,
.clause.is-press,
.epoch-row.is-press,
.tech-block.is-press {
  background: var(--color-brand-soft);
}
.iso-col.is-press::before { height: 3px; }
.iso-col.is-press::after,
.degrade-cell.is-press::after,
.form-panel.is-press::after { opacity: 1; }
.iso-col.is-press .iso-arrow { transform: translateX(4px); }
.iso-board .iso-col.is-dim.is-press { opacity: .8; }
.fail-row.is-press,
.clause.is-press,
.epoch-row.is-press,
.tech-block.is-press { padding-left: 14px; }
.fail-row.is-press::before,
.clause.is-press::before,
.epoch-row.is-press::before,
.tech-block.is-press::before { width: 3px; }
.figure-plate.is-press {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 1px var(--color-brand);
}
.figure-plate.is-press img { transform: scale(1.02); }
.comp-rail a.is-press { background: var(--color-brand-soft); }
.comp-sheet li.is-press { background: var(--color-brand-soft); padding-left: 10px; }
.btn.is-press { transform: translateY(1px) scale(.985); box-shadow: none; }
.footer-col a.is-press { color: var(--color-brand); transform: translateX(6px); }
.nav-logo.is-press { transform: translateY(0); }
.form-panel.is-press { border-color: var(--color-brand); }

@media (prefers-reduced-motion: no-preference) {
  @keyframes wcdpq-kicker {
    from { opacity: 0; transform: translateX(-18px); filter: blur(8px); }
    to { opacity: 1; transform: none; filter: none; }
  }
  @keyframes wcdpq-title {
    0% {
      opacity: 0;
      transform: translateY(42px) scale(.97);
      filter: blur(14px);
      clip-path: inset(18% 12% 72% 0);
    }
    58% { filter: blur(0); }
    100% {
      opacity: 1;
      transform: none;
      filter: none;
      clip-path: inset(0);
    }
  }
  @keyframes wcdpq-copy {
    from { opacity: 0; transform: translateY(22px); filter: blur(8px); }
    to { opacity: 1; transform: none; filter: none; }
  }
  @keyframes wcdpq-actions {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: none; }
  }
  @keyframes wcdpq-col {
    from { opacity: 0; transform: translateY(36px) scale(.985); filter: blur(10px); }
    to { opacity: 1; transform: none; filter: none; }
  }
  @keyframes wcdpq-sweep {
    0% { transform: translateX(-120%); opacity: 0; }
    18% { opacity: .9; }
    100% { transform: translateX(120%); opacity: 0; }
  }
  @keyframes wcdpq-enter {
    from { opacity: 0; transform: translateY(32px); filter: blur(10px); }
    to { opacity: 1; transform: none; filter: none; }
  }
  @keyframes wcdpq-enter-left {
    from { opacity: 0; transform: translateX(-28px); filter: blur(8px); }
    to { opacity: 1; transform: none; filter: none; }
  }
  @keyframes wcdpq-plate {
    from { opacity: 0; transform: translateY(24px) scale(.97); filter: saturate(.6) blur(8px); }
    to { opacity: 1; transform: none; filter: none; }
  }
  @keyframes wcdpq-header {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: none; }
  }
  @keyframes wcdpq-rule {
    from { transform: scaleX(0); opacity: 0; }
    to { transform: scaleX(1); opacity: 1; }
  }

  #site-header {
    animation: wcdpq-header .7s cubic-bezier(.16, 1, .3, 1) both;
  }

  .iso-mast .eyebrow,
  .iso-mast .section-kicker,
  .read-hero .section-kicker,
  .comp-hero .section-kicker {
    animation: wcdpq-kicker .75s cubic-bezier(.16, 1, .3, 1) both;
  }
  .iso-mast h1,
  .read-hero h1,
  .comp-hero h1 {
    animation: wcdpq-title 1.15s cubic-bezier(.16, 1, .3, 1) .06s both;
  }
  .iso-mast .lede,
  .read-hero .lede,
  .comp-hero .lede {
    animation: wcdpq-copy .85s cubic-bezier(.16, 1, .3, 1) .18s both;
  }
  .iso-mast .hero-actions {
    animation: wcdpq-actions .7s cubic-bezier(.16, 1, .3, 1) .32s both;
  }

  .iso-cols { position: relative; }
  .iso-cols::after {
    content: "";
    position: absolute;
    top: 0; bottom: 0; left: 0;
    width: 28%;
    pointer-events: none;
    z-index: 3;
    background: linear-gradient(90deg, transparent, rgba(18, 197, 184, .28), transparent);
    animation: wcdpq-sweep 1.15s cubic-bezier(.16, 1, .3, 1) .42s both;
  }
  .iso-col:nth-child(1) { animation: wcdpq-col .9s cubic-bezier(.16, 1, .3, 1) .28s backwards; }
  .iso-col:nth-child(2) { animation: wcdpq-col .9s cubic-bezier(.16, 1, .3, 1) .42s backwards; }
  .iso-col:nth-child(3) { animation: wcdpq-col .9s cubic-bezier(.16, 1, .3, 1) .56s backwards; }
  .iso-board .iso-col { animation: none; }

  html.js-motion .reveal {
    opacity: 0;
    transform: translateY(32px);
    filter: blur(10px);
    will-change: transform, opacity, filter;
  }
  html.js-motion .reveal.is-visible {
    animation: wcdpq-enter .9s cubic-bezier(.16, 1, .3, 1) var(--reveal-delay, 0ms) both;
  }
  html.js-motion .reveal--left.is-visible {
    animation-name: wcdpq-enter-left;
  }
  html.js-motion .reveal--plate.is-visible {
    animation-name: wcdpq-plate;
    animation-duration: 1.05s;
  }
  html.js-motion .reveal.is-visible .reveal-rule {
    transform-origin: left center;
    animation: wcdpq-rule .7s cubic-bezier(.16, 1, .3, 1) .18s both;
  }
}

@media (prefers-reduced-motion: reduce) {
  #site-header,
  .iso-mast .eyebrow,
  .iso-mast .section-kicker,
  .iso-mast h1,
  .iso-mast .lede,
  .iso-mast .hero-actions,
  .read-hero .section-kicker,
  .read-hero h1,
  .read-hero .lede,
  .comp-hero .section-kicker,
  .comp-hero h1,
  .comp-hero .lede,
  .iso-col,
  .iso-cols::after,
  .reveal,
  .btn,
  .iso-arrow,
  .figure-plate img,
  .footer-col a,
  .nav-logo {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    clip-path: none !important;
    transition: none !important;
  }
}