/* Mercury Narratives v2 — blueprint / schematic. Alternative to the corporate site.
   Tokens from docs/MERCURY_BRAND.md (mercury-marketing). No cards, no corporate grids. */

:root {
  --bg: #080c14;
  --bg-2: #0d111f;
  --line: rgba(148, 163, 184, 0.14);
  --line-soft: rgba(148, 163, 184, 0.08);
  --cyan: #00d4ff;
  --teal: #0ea5a0;
  --cyan-dim: rgba(0, 212, 255, 0.35);
  --glow: rgba(0, 212, 255, 0.15);
  --ink: #f0f4f8;
  --ink-2: #94a3b8;
  --ink-3: #64748b;
  --ease: cubic-bezier(0.32, 0.72, 0, 1);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", ui-monospace, monospace;
  --max: 1200px;
  --wide: 1440px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Blueprint grid + grain, global */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.028) 1px, transparent 1px);
  background-size: 96px 96px;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
main, .site-footer { position: relative; z-index: 1; }

img, svg, canvas { display: block; max-width: 100%; }
a { color: var(--cyan); text-decoration: none; transition: color 0.25s var(--ease); }
a:hover { color: #5ee4ff; }
ul { list-style: none; }
button, input, textarea, select { font: inherit; }

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
h1 { font-size: 3.75rem; line-height: 1; }
h2 { font-size: 2.25rem; line-height: 1.1; }
h3 { font-size: 1.5rem; line-height: 1.2; }

p { color: var(--ink-2); text-wrap: pretty; max-width: 40rem; }
.mono { font-family: var(--mono); }

.wrap { width: min(100% - 3rem, var(--max)); margin-inline: auto; }
.wrap.wide { width: min(100% - 3rem, var(--wide)); }

/* ─── A11y ─── */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 200;
  padding: 0.75rem 1.15rem;
  background: var(--cyan);
  color: var(--bg);
  border-radius: 0.5rem;
  font-weight: 600;
}
.skip-link:focus { top: 1rem; color: var(--bg); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.read-progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 120;
  height: 2px;
  width: 0;
  background: var(--cyan);
  pointer-events: none;
}

/* ─── Island nav ─── */
.site-nav {
  position: fixed;
  inset: 1.5rem 0 auto;
  z-index: 100;
  display: flex;
  justify-content: center;
  pointer-events: none;
}
.island {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  width: max-content;
  max-width: calc(100vw - 2rem);
  padding: 0.5rem 0.5rem 0.5rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 12, 20, 0.72);
  backdrop-filter: blur(20px) saturate(140%);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.875rem;
}
.brand:hover { color: var(--ink); }
.brand-mark {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.55);
}
.nav-links { display: flex; align-items: center; gap: 1.25rem; font-size: 0.875rem; }
.nav-links a { color: var(--ink-3); }
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--ink); }

/* ─── Nav dropdown groups ─── */
.nav-group { position: relative; display: flex; align-items: center; }
.nav-group-toggle {
  appearance: none;
  background: none; border: 0; padding: 0; margin: 0;
  font: inherit; color: var(--ink-3); cursor: pointer;
  display: inline-flex; align-items: center; gap: 0.35rem;
}
.nav-group-toggle::after {
  content: "";
  width: 5px; height: 5px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 0.25s var(--ease);
}
.nav-group-toggle:hover,
.nav-group:focus-within .nav-group-toggle,
.nav-group-toggle[aria-expanded="true"],
.nav-group:has(a[aria-current="page"]) .nav-group-toggle { color: var(--ink); }
.nav-group:hover .nav-group-toggle::after,
.nav-group-toggle[aria-expanded="true"]::after { transform: rotate(225deg); }
.nav-menu {
  position: absolute;
  top: calc(100% + 0.85rem);
  left: 50%;
  transform: translate(-50%, 6px);
  min-width: 10.5rem;
  padding: 0.4rem;
  display: flex; flex-direction: column;
  background: rgba(8, 12, 20, 0.97);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  backdrop-filter: blur(20px) saturate(140%);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
}
/* hover bridge so the pointer can cross the gap */
.nav-menu::before {
  content: "";
  position: absolute;
  inset: -0.9rem 0 auto;
  height: 0.9rem;
}
.nav-group:hover .nav-menu,
.nav-group:focus-within .nav-menu,
.nav-group-toggle[aria-expanded="true"] ~ .nav-menu {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translate(-50%, 0);
}
.nav-menu a {
  padding: 0.5rem 0.75rem;
  border-radius: 0.55rem;
  color: var(--ink-3);
  white-space: nowrap;
}
.nav-menu a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.05); }
.nav-menu a[aria-current="page"] { color: var(--ink); }

/* ─── Capability grid (digital marketing units) ─── */
.capgrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.cap {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), background 0.3s var(--ease);
}
.cap:hover {
  border-color: rgba(0, 212, 255, 0.45);
  background: rgba(0, 212, 255, 0.04);
  transform: translateY(-2px);
}
.cap-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.cap h3 { margin: 0.5rem 0 0.4rem; }
.cap p { color: var(--ink-3); font-size: 0.925rem; margin: 0; }
.cap em {
  display: inline-block;
  margin-top: 0.85rem;
  font-style: normal;
  font-size: 0.85rem;
  color: var(--cyan);
}
@media (max-width: 640px) {
  .capgrid { grid-template-columns: 1fr; }
}

/* ─── Proof / case studies ─── */
.case-head { max-width: 44rem; margin-bottom: 1.75rem; }
.case-query {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  margin-top: 0.75rem;
}
.case-query strong { color: var(--cyan); font-weight: 500; }
.case-chips { margin-top: 1.5rem; }
.case-outcome {
  display: flex; align-items: center; gap: 0.6rem;
  margin-top: 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
}
.case-outcome .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.55);
  flex-shrink: 0;
}
.case-outcome-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-right: 0.75rem;
}

/* locale switcher (footer) */
.lang-switch {
  font-size: 0.8rem;
  color: var(--ink-3);
}
.lang-switch a { color: var(--ink-3); }
.lang-switch a:hover { color: var(--ink); }
.lang-switch strong { color: var(--cyan); font-weight: 500; }

/* CJK line breaking — no orphan characters in headlines */
[lang^="zh"] h1,
[lang^="zh"] h2 { word-break: keep-all; }

.nav-toggle {
  display: none;
  position: relative;
  width: 42px; height: 42px;
  border: 0; border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
.nav-toggle span {
  position: absolute;
  left: 12px;
  width: 18px; height: 1.5px;
  background: currentColor;
  transition: transform 0.35s var(--ease), top 0.35s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 25px; }
.site-nav.is-open .nav-toggle span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.site-nav.is-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-nav.is-open .nav-toggle span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

@media (max-width: 960px) {
  .island { width: calc(100vw - 2rem); justify-content: space-between; }
  /* backdrop-filter traps fixed descendants — drop it while the overlay is open */
  .site-nav.is-open .island { backdrop-filter: none; }
  .nav-toggle { display: block; z-index: 102; }
  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    padding: 6rem 2rem 2rem;
    background: rgba(8, 12, 20, 0.9);
    backdrop-filter: blur(28px);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  }
  .site-nav.is-open .nav-links { opacity: 1; transform: none; pointer-events: auto; }
  /* flatten dropdown groups into the overlay list */
  .nav-group,
  .nav-menu { display: contents; }
  .nav-menu { visibility: visible; pointer-events: auto; }
  .nav-group-toggle {
    pointer-events: none;
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--ink-3);
    padding: 1.75rem 0 0.25rem;
    opacity: 0;
    transform: translateY(3rem);
  }
  .nav-group-toggle::after { content: none; }
  .site-nav.is-open .nav-group-toggle {
    opacity: 1; transform: none;
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  }
  .nav-menu a { white-space: normal; }
  .nav-links a {
    font-size: 1.875rem;
    line-height: 1.2;
    padding: 0.75rem 0;
    color: var(--ink);
    opacity: 0;
    transform: translateY(3rem);
  }
  .site-nav.is-open .nav-links a {
    opacity: 1; transform: none;
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  }
  .site-nav.is-open .nav-links a:nth-child(1) { transition-delay: 0.06s; }
  .site-nav.is-open .nav-links a:nth-child(2) { transition-delay: 0.1s; }
  .site-nav.is-open .nav-links a:nth-child(3) { transition-delay: 0.14s; }
  .site-nav.is-open .nav-links a:nth-child(4) { transition-delay: 0.18s; }
  .site-nav.is-open .nav-links a:nth-child(5) { transition-delay: 0.22s; }
  .site-nav.is-open .nav-links a:nth-child(6) { transition-delay: 0.26s; }
  .site-nav.is-open .nav-links a:nth-child(7) { transition-delay: 0.3s; }
  .site-nav.is-open .nav-links a:nth-child(8) { transition-delay: 0.34s; }
  .nav-links .nav-cta { margin-top: 1.5rem; font-size: 1rem; padding: 0.875rem 1.5rem; }
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease);
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--teal));
  color: var(--bg);
}
.btn-primary:hover {
  color: var(--bg);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 212, 255, 0.28);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--cyan);
}
.btn-outline:hover { background: var(--glow); color: var(--cyan); }
.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border: 1px solid transparent;
  padding-inline: 0.25rem;
}
.btn-ghost:hover { color: var(--ink); }
.btn-sm { padding: 0.65rem 1.15rem; font-size: 0.875rem; }

/* ─── Type labels ─── */
.eyebrow, .kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.kicker { color: var(--ink-3); margin-bottom: 1rem; }
.eyebrow { margin-bottom: 1.5rem; }
.eyebrow .dot, .kicker .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
  animation: pulse-dot 2.4s var(--ease) infinite;
}
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ─── Hero: the living bridge ─── */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 8rem 0 0;
  overflow: hidden;
}
.hero-content { position: relative; z-index: 2; max-width: 42.5rem; padding-bottom: 3rem; }
.hero h1 {
  font-size: clamp(2.5rem, 6.4vw, 4.5rem);
  font-weight: 600;
  margin-bottom: 1.5rem;
  max-width: 16ch;
}
.hero h1 .soft {
  background: linear-gradient(90deg, var(--ink), var(--ink-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero h1 .grad { color: var(--cyan); -webkit-text-fill-color: var(--cyan); }
.hero-lead { font-size: 1.25rem; line-height: 1.75rem; margin-bottom: 1rem; }
.hero-sub { font-size: 1rem; color: var(--ink-3); margin-bottom: 2.5rem; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; }
.proof-line {
  margin-top: 2.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.proof-line strong { color: var(--ink-2); font-weight: 500; }

/* Bridge flow canvas */
.flowviz {
  position: relative;
  z-index: 1;
  margin-top: 1rem;
  border-top: 1px solid var(--line);
}
.flowviz figcaption {
  position: absolute;
  top: 1rem; left: 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.flowviz .axis {
  position: absolute;
  top: 1rem; right: 0;
  display: flex;
  gap: 2rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.flowviz .axis .ai { color: var(--ink-3); }
.flowviz .axis .human { color: var(--cyan); }
#bridge-flow { width: 100%; height: 300px; }
#orbit-loop { width: 100%; height: 520px; }
.orbitviz { position: relative; border-top: 1px solid var(--line); padding-top: 3rem; margin-top: 2rem; }
.orbitviz figcaption {
  position: absolute;
  top: 1rem; left: 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ─── Sections ─── */
.section { padding: 7rem 0 8rem; position: relative; }
.section.alt { background: var(--bg-2); }
.section-head { max-width: 42.5rem; margin-bottom: 4rem; }
.section-head h2 { margin-bottom: 1rem; }
.section-head p { font-size: 1.125rem; line-height: 1.75rem; }

/* Giant off-grid statement */
.manifesto { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 4rem; align-items: end; }
.manifesto .giant {
  font-size: clamp(3.75rem, 9vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  max-width: 9ch;
  transform: translateX(-0.25em);
}
.manifesto .giant em { font-style: normal; color: var(--cyan); }

/* Door bands — full-bleed, fill on hover */
.door-band {
  position: relative;
  display: grid;
  grid-template-columns: 8rem 1fr auto;
  gap: 2rem;
  align-items: center;
  padding: 3rem 0;
  border-top: 1px solid var(--line);
  color: inherit;
  overflow: hidden;
}
.door-band:last-of-type { border-bottom: 1px solid var(--line); }
.door-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--glow);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.7s var(--ease);
}
.door-band:hover::before { transform: scaleX(1); }
.door-band > * { position: relative; z-index: 1; }
.door-band:hover { color: inherit; }
.door-band:hover h3 { color: var(--cyan); }
.door-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--ink-3);
}
.door-copy h3 {
  font-size: clamp(2.25rem, 5vw, 3rem);
  margin-bottom: 0.25rem;
  transition: color 0.35s var(--ease);
}
.door-copy .tagline { color: var(--cyan); font-weight: 500; margin-bottom: 0.5rem; }
.door-copy p { margin: 0; max-width: 36rem; }
.door-go {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
}
.door-band:hover .door-go { color: var(--cyan); }

@media (max-width: 800px) {
  .manifesto { grid-template-columns: 1fr; gap: 1.5rem; }
  .manifesto .giant { transform: none; }
  .door-band { grid-template-columns: 1fr; gap: 0.5rem; padding: 2rem 0; }
}

/* Tagline */
.tagline-reveal {
  padding: 9rem 0 10rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.tagline-reveal p {
  max-width: 14ch;
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.tagline-reveal .word { color: rgba(240, 244, 248, 0.28); transition: color 0.7s var(--ease); }
.tagline-reveal .word.on { color: var(--ink); }
.tagline-reveal .word.accent.on { color: var(--cyan); }

/* Spine rail */
.spine { position: relative; padding-left: 3.5rem; }
.spine::before {
  content: "";
  position: absolute;
  left: 0.55rem; top: 0.5rem; bottom: 0.5rem;
  width: 1px;
  background: var(--line);
}
.spine-progress {
  position: absolute;
  left: 0.55rem; top: 0.5rem;
  width: 1px; height: 0;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.6);
}
.spine-item {
  position: relative;
  padding: 2.25rem 0;
}
.spine-item::before {
  content: "";
  position: absolute;
  left: calc(-3.5rem + 0.55rem);
  top: 2.8rem;
  width: 9px; height: 9px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: var(--bg);
  transform: translateX(-4px);
}
.spine-item .n {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
  display: block;
  margin-bottom: 0.5rem;
}
.spine-item h3 { font-size: 1.875rem; margin-bottom: 0.5rem; }
.spine-item .tagline { color: var(--ink-3); margin-bottom: 0.75rem; }
.spine-item ul { margin-top: 1rem; }
.spine-item li {
  color: var(--ink-2);
  font-size: 0.9375rem;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.35rem;
}
.spine-item li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.6rem;
  width: 6px; height: 1px;
  background: var(--cyan);
}

/* Blueprint: scattered context that settles */
.blueprint {
  position: relative;
  border: 1px solid var(--line);
  padding: 3rem 2.5rem;
  margin-top: 2rem;
}
.blueprint .corner {
  position: absolute;
  width: 12px; height: 12px;
  border: 1px solid var(--cyan-dim);
}
.blueprint .corner.tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.blueprint .corner.tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.blueprint .corner.bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.blueprint .corner.br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.blueprint .b-title {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 2rem;
}
.chipfield {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
}
.ctx-chip {
  font-family: var(--mono);
  font-size: 0.875rem;
  color: var(--ink-2);
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: transform 1.1s var(--ease), color 0.5s var(--ease), border-color 0.5s var(--ease), background 0.5s var(--ease);
  will-change: transform;
}
.ctx-chip:nth-child(odd) { transform: translateY(-1.4rem) rotate(-3deg); }
.ctx-chip:nth-child(even) { transform: translateY(1.1rem) rotate(2.5deg); }
.chipfield.in .ctx-chip {
  transform: none;
  border-color: rgba(0, 212, 255, 0.35);
  color: var(--ink);
  background: var(--glow);
}

/* Trust numbers */
.bignum-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.bignum {
  padding: 2.5rem 1.5rem 2.5rem 0;
  border-right: 1px solid var(--line-soft);
}
.bignum:last-child { border-right: 0; }
.bignum .n {
  display: block;
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 0.75rem;
}
.bignum .n em { font-style: normal; color: var(--cyan); }
.bignum p { font-size: 0.9375rem; margin: 0; }
@media (max-width: 900px) {
  .bignum-row { grid-template-columns: 1fr 1fr; }
  .bignum { border-right: 0; border-bottom: 1px solid var(--line-soft); }
}

/* Audience index */
.index-row {
  display: grid;
  grid-template-columns: 4rem 14rem 1fr auto;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.75rem 0;
  border-top: 1px solid var(--line);
  color: inherit;
}
.index-row:last-of-type { border-bottom: 1px solid var(--line); }
.index-row:hover { color: inherit; }
.index-row:hover strong { color: var(--cyan); }
.index-row .n { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-3); }
.index-row strong {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.3s var(--ease);
}
.index-row span { color: var(--ink-2); }
.index-row em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
@media (max-width: 800px) {
  .index-row { grid-template-columns: 3rem 1fr; }
  .index-row span, .index-row em { grid-column: 2; }
}

/* FAQ, open list */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem 4rem;
}
.faq-item h3 {
  font-size: 1.125rem;
  line-height: 1.75rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.faq-item p { font-size: 0.9375rem; }
@media (max-width: 800px) { .faq-grid { grid-template-columns: 1fr; gap: 2rem; } }

/* CTA */
.cta-band { padding: 8rem 0 9rem; border-top: 1px solid var(--line); }
.cta-band .wrap { max-width: 42.5rem; }
.cta-band h2 { font-size: clamp(2.25rem, 5vw, 3.75rem); max-width: 14ch; margin-bottom: 1rem; }
.cta-band p { margin-bottom: 2rem; }

/* ─── Inner page primitives ─── */
.page-hero {
  padding: 11rem 0 4.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.page-hero .wrap { max-width: 42.5rem; }
.page-hero h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); margin-bottom: 1rem; max-width: 16ch; }
.page-hero .lead { font-size: 1.25rem; line-height: 1.75rem; margin-bottom: 2rem; }

.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 4rem; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 2rem; } }

.prose h2 { font-size: 2.25rem; margin-bottom: 1rem; }
.prose h3 { font-size: 1.125rem; margin: 1.75rem 0 0.65rem; color: var(--cyan); }
.prose p + p { margin-top: 0.9rem; }
.prose .lead { font-size: 1.125rem; }

.panel {
  border: 1px solid var(--line);
  padding: 1.5rem;
}
.panel h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  font-family: var(--mono);
  margin-bottom: 1rem;
}

.check-list li {
  display: flex;
  gap: 0.5rem;
  color: var(--ink-2);
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}
.check-list li::before { content: "→"; color: var(--cyan); flex-shrink: 0; }

.flow { display: grid; }
.flow-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.flow-step:last-child { border-bottom: 0; }
.flow-num { font-family: var(--mono); color: var(--cyan); font-size: 0.75rem; }
.flow-step strong { display: block; color: var(--ink); font-size: 1rem; margin-bottom: 0.2rem; }
.flow-step span { color: var(--ink-3); font-size: 0.875rem; }

/* Feature list rows (replaces card grids) */
.feat-row {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 2rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--line);
}
.feat-row:last-of-type { border-bottom: 1px solid var(--line); }
.feat-row .n { font-family: var(--mono); font-size: 0.75rem; color: var(--cyan); letter-spacing: 0.12em; }
.feat-row h3 { font-size: 1.5rem; margin-bottom: 0.4rem; }
.feat-row p { margin: 0; }
@media (max-width: 700px) { .feat-row { grid-template-columns: 1fr; gap: 0.5rem; } }

.table-wrap { overflow-x: auto; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
th, td { padding: 1rem 0; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
th {
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}
td { color: var(--ink-2); padding-right: 1.5rem; }
td strong { color: var(--ink); font-weight: 600; }
tr:last-child td, tr:last-child th { border-bottom: none; }

.faq { max-width: 48rem; }
.faq details { border-top: 1px solid var(--line); padding: 1.25rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-weight: 500;
  font-size: 1.125rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--cyan); font-family: var(--mono); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin-top: 0.85rem; font-size: 0.9375rem; }

.chip-row { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; }
.chip {
  display: inline-flex;
  padding: 0.4rem 0;
  color: var(--ink-2);
  font-size: 0.875rem;
  border-bottom: 1px solid var(--line);
}
a.chip:hover { border-color: var(--cyan); color: var(--cyan); }

.form { display: grid; gap: 1.25rem; }
.form label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--ink-3);
  font-family: var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.form input, .form select, .form textarea {
  width: 100%;
  padding: 0.9rem 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  outline: none;
  transition: border-color 0.25s var(--ease);
}
.form select { color: var(--ink-2); }
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--cyan); }
.form textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 0.875rem; color: var(--ink-3); }
.form .field-error {
  color: #f87171;
  font-size: 0.75rem;
  letter-spacing: 0;
  text-transform: none;
  font-family: var(--font);
}
.form input[aria-invalid="true"], .form textarea[aria-invalid="true"] { border-color: rgba(248,113,113,0.7); }
.form-success, .form-error { display: none; padding: 1rem 0; font-size: 0.9375rem; }
.form-success { color: var(--teal); }
.form-error { color: #f87171; }
.form.is-success .form-success { display: block; }
.form.is-fail .form-error { display: block; }
.form.is-success .fields { display: none; }
/* honeypot — invisible to humans, irresistible to bots */
.hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden;
}

.swim { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.5rem; }
@media (max-width: 860px) { .swim { grid-template-columns: 1fr; } }
.swim-step { border-top: 1px solid var(--line); padding: 1rem 0 0; }
.swim-step .k {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.45rem;
}
.swim-step strong { display: block; margin-bottom: 0.35rem; }
.swim-step p { font-size: 0.875rem; margin: 0; }
.swim-or { display: grid; place-items: center; color: var(--ink-3); font-family: var(--mono); font-size: 0.75rem; }

.quote {
  border-left: 2px solid var(--cyan);
  padding: 0.25rem 0 0.25rem 1.15rem;
  color: var(--ink-2);
  font-size: 1.25rem;
}
.quote cite {
  display: block;
  margin-top: 0.75rem;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

.protocol .letters {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 0.75rem;
}

.lost {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  text-align: left;
  padding: 10rem 1.5rem 4rem;
}
.lost .code { font-family: var(--mono); color: var(--cyan); letter-spacing: 0.2em; margin-bottom: 1rem; }
.lost h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); margin-bottom: 0.85rem; max-width: 14ch; }
.lost p { margin-bottom: 1.75rem; }

.legal { max-width: 40rem; }
.legal h2 { margin: 2rem 0 0.7rem; font-size: 1.5rem; }
.legal p + p { margin-top: 0.85rem; }

/* Footer */
.site-footer { padding: 5rem 0 0; border-top: 1px solid var(--line); overflow: hidden; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 3rem;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p { margin-top: 0.85rem; font-size: 0.9375rem; }
.footer-col h4 {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  margin-bottom: 1rem;
}
.footer-col a { display: block; color: var(--ink-2); font-size: 0.9375rem; margin-bottom: 0.55rem; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 0.75rem;
  font-family: var(--mono);
}
.footer-mark {
  font-size: clamp(6rem, 18vw, 14rem);
  font-weight: 600;
  letter-spacing: -0.05em;
  line-height: 0.8;
  color: rgba(240, 244, 248, 0.05);
  text-align: center;
  user-select: none;
  pointer-events: none;
  transform: translateY(0.18em);
}

/* ─── What-strip: plain language, no brand names ─── */
.whatstrip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 4.5rem 0;
  background: rgba(255, 255, 255, 0.015);
}
.whatstrip .wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.whatstrip p.plain {
  max-width: 46rem;
  font-size: clamp(1.375rem, 2.6vw, 1.875rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.whatstrip p.plain strong { color: var(--cyan); font-weight: 500; }
.whatstrip .meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ─── Symptoms: does this sound familiar ─── */
.symptoms { display: grid; gap: 0; margin-top: 2.5rem; }
.symptom {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.375rem 0;
  border-bottom: 1px solid var(--line-soft);
  transition: padding-left 0.45s var(--ease);
}
.symptom:first-child { border-top: 1px solid var(--line-soft); }
.symptom:hover { padding-left: 0.75rem; }
.symptom .mark {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.symptom p {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--ink-2);
  line-height: 1.55;
}
.symptom p strong { color: var(--ink); font-weight: 500; }

/* ─── Canvas captions ─── */
.viz-caption {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
  font-size: 0.9375rem;
  color: var(--ink-2);
  max-width: 42rem;
}
.viz-caption strong { color: var(--ink); font-weight: 500; }

/* ─── Self-check quiz ─── */
.quiz { margin-top: 2rem; }
.quiz-q {
  border-top: 1px solid var(--line-soft);
  padding: 2rem 0;
}
.quiz-q:last-of-type { border-bottom: 1px solid var(--line-soft); }
.quiz-q h3 {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.375rem;
}
.quiz-q h3 .qn {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  margin-right: 0.75rem;
}
.quiz-q .hint { font-size: 0.9375rem; color: var(--ink-3); margin-bottom: 1.25rem; }
.quiz-opts { display: grid; gap: 0.625rem; max-width: 42rem; }
.quiz-opt {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9375rem 1.25rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 0.9375rem;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), background 0.3s var(--ease);
}
.quiz-opt .box {
  width: 14px;
  height: 14px;
  border: 1px solid var(--line);
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s;
}
.quiz-opt:hover { border-color: var(--cyan); color: var(--ink); }
.quiz-opt.selected {
  border-color: var(--cyan);
  background: var(--cyan-dim);
  color: var(--ink);
}
.quiz-opt.selected .box { background: var(--cyan); border-color: var(--cyan); }
.quiz-actions { margin-top: 2.5rem; display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.quiz-note { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-3); letter-spacing: 0.06em; }
.quiz-warn { font-size: 0.875rem; color: #f87171; width: 100%; }
.quiz-q.needs-answer h3 .qn { color: #f87171; }

.quiz-result {
  display: none;
  margin-top: 3rem;
  border: 1px solid var(--line);
  padding: 2.5rem;
  position: relative;
  background: rgba(255, 255, 255, 0.015);
}
.quiz-result.show { display: block; animation: fadeUp 0.6s var(--ease) both; }
.quiz-result .score-row {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.quiz-result .score {
  font-size: clamp(4rem, 8vw, 6rem);
  font-weight: 200;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.quiz-result .score .of { font-size: 1.5rem; color: var(--ink-3); letter-spacing: 0; }
.quiz-result .band {
  font-family: var(--mono);
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}
.quiz-result h3 { font-size: 1.75rem; margin-bottom: 0.75rem; letter-spacing: -0.02em; }
.quiz-result p { max-width: 44rem; }
.quiz-result .leaks { margin: 1.5rem 0; }
.quiz-result .leaks li { color: var(--ink-2); font-size: 0.9375rem; margin-bottom: 0.5rem; }
.quiz-result .leaks li::before { content: "→"; color: var(--cyan); margin-right: 0.5rem; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(1rem); } to { opacity: 1; transform: none; } }

/* Reveal */
.reveal {
  opacity: 0;
  filter: blur(8px);
  transform: translateY(4rem);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease);
}
.reveal.in { opacity: 1; filter: blur(0); transform: none; }

/* ─── Legacy primitives, re-spoken in blueprint ─── */
.section-head.left { margin-left: 0; text-align: left; }

.badge {
  display: inline-block;
  margin-bottom: 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.icon-box {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.grid-2, .grid-3, .grid-4 {
  display: grid;
  gap: 0 3rem;
}
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid-4 { grid-template-columns: 1fr 1fr; }

.card {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line-soft);
  height: auto;
}
.card::before { display: none; }
.card:hover { transform: none; box-shadow: none; border-color: var(--line); }
.card h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.card .tagline { color: var(--cyan); font-weight: 500; font-size: 0.9375rem; margin-bottom: 0.75rem; }
.card p { font-size: 0.9375rem; margin-bottom: 1rem; }
.card ul { margin: 0 0 1rem; }
.card li {
  display: flex;
  gap: 0.5rem;
  color: var(--ink-2);
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}
.card li::before { content: "→"; color: var(--cyan); flex-shrink: 0; }

.card-link { display: block; color: inherit; }
.card-link:hover { color: inherit; }
.card-link:hover .card h3 { color: var(--cyan); }
.card h3 { transition: color 0.3s var(--ease); }

@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
}

.mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }
.text-cyan { color: var(--cyan); }
.text-muted { color: var(--ink-3); }
.center { text-align: center; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; filter: none; }
  .tagline-reveal .word { color: var(--ink); }
  .tagline-reveal .word.accent { color: var(--cyan); }
  .ctx-chip { transform: none !important; }
  #bridge-flow { display: none; }
}

@media (max-width: 640px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }
  .hero { padding-top: 7rem; }
}