/* ==========================================================================
   Sciematics Insights | style.css
   Theme: Aurora. Obsidian, Cyan, Indigo.
   Dark, spacious, instrumented. Restraint is the premium signal.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --obsidian: #06070A;
  --space: #0E1017;
  --space-2: #141824;
  --cyan: #22D3EE;
  --cyan-dim: #0E7490;
  --indigo: #6366F1;
  --lilac: #A78BFA;

  --platinum: #E8EAF0;
  --mist: #9AA1B2;
  --mist-dim: #656C7E;

  --line: rgba(232, 234, 240, .10);
  --line-strong: rgba(232, 234, 240, .18);
  --glass: rgba(255, 255, 255, .028);
  --glass-hi: rgba(255, 255, 255, .05);

  --radius: 10px;
  --radius-lg: 18px;
  --radius-xl: 26px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --header-h: 80px;
  --util-h: 40px;

  --font-display: "Sora", "Segoe UI", sans-serif;
  --font-body: "Manrope", -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --grad-aurora: linear-gradient(120deg, var(--cyan) 0%, var(--indigo) 55%, var(--lilac) 100%);
  --shadow: 0 20px 60px rgba(0, 0, 0, .5);
  --glow-cyan: 0 0 0 1px rgba(34, 211, 238, .25), 0 12px 40px rgba(34, 211, 238, .12);
}

/* ---------- 2. Base ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 24px); }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.72;
  color: var(--mist);
  background: var(--obsidian);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1.1;
  color: var(--platinum);
  margin: 0 0 .6em;
}

h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); font-weight: 500; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); font-weight: 500; }
h3 { font-size: clamp(1.15rem, 1.9vw, 1.4rem); }

p { margin: 0 0 1.15rem; color: var(--mist); }
p.lead { font-size: 1.14rem; color: var(--mist); max-width: 62ch; }

a { color: var(--cyan); text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: #67E8F9; }

img { max-width: 100%; height: auto; display: block; }

::selection { background: var(--cyan); color: var(--obsidian); }

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

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 9999; background: var(--cyan); color: var(--obsidian); padding: .8rem 1.2rem; font-weight: 600; }
.skip-link:focus { left: 8px; top: 8px; }

/* Gradient text, used once or twice per page at most */
.grad-text {
  background: var(--grad-aurora);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- 3. Layout ---------- */
.section { padding: clamp(5rem, 9vw, 8.5rem) 0; position: relative; }
.section-tight { padding: clamp(3rem, 5vw, 4.5rem) 0; }

.band-obsidian { background: var(--obsidian); }
.band-space { background: var(--space); border-block: 1px solid var(--line); }
.band-line-top { border-top: 1px solid var(--line); }

/* Aurora mesh: the hero's depth. Decorative only. */
.aurora { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.aurora::before, .aurora::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(110px); opacity: .30;
}
.aurora::before { width: 620px; height: 620px; background: var(--cyan); top: -260px; right: -140px; }
.aurora::after { width: 520px; height: 520px; background: var(--indigo); bottom: -280px; left: -120px; opacity: .34; }

/* Faint dot lattice, the instrumented texture */
.lattice { position: relative; }
.lattice::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image: radial-gradient(circle, rgba(232,234,240,.10) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  pointer-events: none;
}
.lattice > * { position: relative; z-index: 1; }

/* ---------- 4. Eyebrow ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex; align-items: center; gap: .8rem;
  margin-bottom: 1.4rem;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--cyan); }

.mono { font-family: var(--font-mono); font-feature-settings: "tnum"; }

/* A number with its uncertainty. The credibility signal. */
.ci { font-family: var(--font-mono); color: var(--mist-dim); font-size: .78em; margin-left: .35em; }

/* ---------- 5. Buttons ---------- */
.btn {
  --bs-btn-focus-box-shadow: none;
  font-family: var(--font-body); font-weight: 600; font-size: .93rem;
  border-radius: 999px; padding: .82rem 1.7rem;
  border: 1px solid transparent;
  transition: all .3s var(--ease);
  display: inline-flex; align-items: center; gap: .55rem;
}
.btn-cyan { background: var(--cyan); color: var(--obsidian); }
.btn-cyan:hover { background: #67E8F9; color: var(--obsidian); transform: translateY(-2px); box-shadow: 0 14px 36px rgba(34, 211, 238, .28); }
.btn-glass { background: var(--glass-hi); color: var(--platinum); border-color: var(--line-strong); backdrop-filter: blur(10px); }
.btn-glass:hover { color: var(--platinum); border-color: var(--cyan); background: rgba(34, 211, 238, .08); transform: translateY(-2px); }
.btn-outline-cyan { border-color: var(--cyan); color: var(--cyan); background: transparent; }
.btn-outline-cyan:hover { background: var(--cyan); color: var(--obsidian); transform: translateY(-2px); }

.link-arrow { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; display: inline-flex; align-items: center; gap: .55rem; color: var(--cyan); }
.link-arrow i { transition: transform .3s var(--ease); }
.link-arrow:hover i { transform: translateX(5px); }

/* ---------- 6. Utility bar ---------- */
.utility-bar {
  background: #04050700; border-bottom: 1px solid var(--line);
  height: var(--util-h); font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em;
}
.utility-bar a { color: var(--mist-dim); padding: 0 .6rem; }
.utility-bar a:hover { color: var(--platinum); }
.utility-bar a.active { color: var(--cyan); }
.utility-bar a.active::before { content: "["; margin-right: 2px; }
.utility-bar a.active::after { content: "]"; margin-left: 2px; }
.util-label { color: var(--mist-dim); text-transform: uppercase; letter-spacing: .18em; }
.util-contact { color: var(--mist-dim); }
.util-contact a { padding: 0 .4rem; }

/* ---------- 7. Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1030; height: var(--header-h);
  background: rgba(6, 7, 10, .72); backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent; transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-solid { background: rgba(6, 7, 10, .94); border-bottom-color: var(--line); }

.brand { display: flex; align-items: center; gap: .75rem; }
.brand-mark { width: 34px; height: 34px; }
.brand-text { font-family: var(--font-display); font-weight: 500; font-size: 1.2rem; color: var(--platinum); letter-spacing: -.02em; }

.nav-link-main { font-size: .9rem; font-weight: 500; color: var(--mist); padding: .5rem .75rem; position: relative; }
.nav-link-main:hover, .nav-link-main.active { color: var(--platinum); }
.nav-link-main.active::after { content: ""; position: absolute; left: .75rem; right: .75rem; bottom: .1rem; height: 1px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }

.nav-toggle { border: 1px solid var(--line-strong); background: var(--glass); border-radius: 999px; width: 44px; height: 44px; display: grid; place-items: center; color: var(--platinum); }

.offcanvas { background: var(--space); border-left: 1px solid var(--line) !important; }
.offcanvas .btn-close { filter: invert(1) grayscale(1); opacity: .6; }
.offcanvas-header { border-bottom: 1px solid var(--line) !important; }
.offcanvas .nav-link-main { padding: .95rem 0; font-size: 1.03rem; border-bottom: 1px solid var(--line); display: block; }
.offcanvas .nav-link-main.active::after { display: none; }
.offcanvas .nav-link-main.active { color: var(--cyan); }

/* ---------- 8. Hero ---------- */
.hero { position: relative; padding: clamp(4.5rem, 9vw, 8rem) 0 clamp(3.5rem, 6vw, 5.5rem); overflow: hidden; }
.hero > .container { position: relative; z-index: 1; }
.hero-title { max-width: 16ch; font-weight: 500; }
.hero-sub { max-width: 56ch; font-size: 1.15rem; }

.hero-meta { display: flex; flex-wrap: wrap; gap: 2.6rem; margin-top: 3rem; padding-top: 1.8rem; border-top: 1px solid var(--line); }
.hero-meta-item .num { font-family: var(--font-mono); font-weight: 500; font-size: 1.7rem; color: var(--platinum); letter-spacing: -.02em; line-height: 1; }
.hero-meta-item .lbl { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--mist-dim); margin-top: .55rem; }

/* ---------- 9. Glass card ---------- */
.glass {
  background: var(--glass); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 2rem; height: 100%;
  backdrop-filter: blur(12px);
  transition: border-color .35s var(--ease), transform .35s var(--ease), background .35s var(--ease);
}
.glass:hover { border-color: rgba(34, 211, 238, .35); transform: translateY(-4px); background: var(--glass-hi); }
.glass .icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(34, 211, 238, .09); color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, .2);
  display: grid; place-items: center; font-size: 1.25rem; margin-bottom: 1.4rem;
}
.glass h3 { font-size: 1.12rem; }
.glass p { font-size: .94rem; margin-bottom: 0; }

.glass-num .idx { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .16em; color: var(--cyan); display: block; margin-bottom: 1rem; }

/* Gradient hairline on top of a feature card */
.glass-lit { position: relative; overflow: hidden; }
.glass-lit::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: var(--grad-aurora); }

/* ---------- 10. Page hero ---------- */
.page-hero { position: relative; padding: calc(var(--header-h) + 3rem) 0 3.6rem; overflow: hidden; border-bottom: 1px solid var(--line); }
.page-hero > .container { position: relative; z-index: 1; }
.breadcrumb-rail { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: 1.6rem; }
.breadcrumb-rail a { color: var(--mist-dim); }
.breadcrumb-rail a:hover { color: var(--cyan); }
.breadcrumb-rail .sep { padding: 0 .5rem; opacity: .45; }

/* ---------- 11. Stats ---------- */
.stat { padding: 1.4rem 0; }
.stat-num { font-family: var(--font-mono); font-weight: 500; font-size: clamp(2rem, 3.6vw, 2.8rem); color: var(--platinum); letter-spacing: -.03em; line-height: 1; }
.stat-num.cyan { color: var(--cyan); }
.stat-label { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--mist-dim); margin-top: .7rem; }

/* ---------- 12. Model card ---------- */
.model-card {
  background: var(--space); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
  position: sticky; top: calc(var(--header-h) + 24px);
}
.model-card__head { padding: 1.3rem 1.6rem; border-bottom: 1px solid var(--line); background: rgba(34, 211, 238, .05); }
.model-card__head .t { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--cyan); }
.model-card__head h3 { margin: .4rem 0 0; font-size: 1.05rem; }
.model-card__body { padding: .4rem 1.6rem 1.4rem; }
.mc-row { display: flex; justify-content: space-between; gap: 1rem; padding: .85rem 0; border-bottom: 1px dashed var(--line); font-size: .88rem; }
.mc-row:last-child { border-bottom: 0; }
.mc-key { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--mist-dim); flex: 0 0 42%; }
.mc-val { color: var(--platinum); text-align: right; font-family: var(--font-mono); font-size: .84rem; }
.mc-val.cyan { color: var(--cyan); }
.mc-note { padding: 1.1rem 1.6rem; border-top: 1px solid var(--line); background: rgba(255,255,255,.015); font-size: .82rem; color: var(--mist-dim); }

/* ---------- 13. Chips ---------- */
.chip {
  display: inline-block; font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em;
  padding: .4rem .85rem; border: 1px solid var(--line-strong); border-radius: 999px;
  color: var(--mist); background: var(--glass); margin: 0 .4rem .55rem 0;
  transition: all .25s var(--ease);
}
.chip:hover { border-color: var(--cyan); color: var(--cyan); }
.chip-solid { background: rgba(34, 211, 238, .1); border-color: rgba(34, 211, 238, .3); color: var(--cyan); }

/* ---------- 14. Process / approach steps ---------- */
.step { position: relative; padding: 2rem; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--glass); height: 100%; transition: border-color .35s var(--ease), transform .35s var(--ease); }
.step:hover { border-color: rgba(34, 211, 238, .3); transform: translateY(-4px); }
.step-num { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .16em; color: var(--cyan); margin-bottom: 1.1rem; display: block; }
.step h3 { font-size: 1.08rem; }
.step p { font-size: .93rem; margin-bottom: 0; }
.step-meta { margin-top: 1.2rem; padding-top: 1rem; border-top: 1px dashed var(--line); font-family: var(--font-mono); font-size: .74rem; color: var(--mist-dim); }

/* ---------- 15. Timeline ---------- */
.timeline { position: relative; padding-left: 2.4rem; }
.timeline::before { content: ""; position: absolute; left: 6px; top: .6rem; bottom: .6rem; width: 1px; background: var(--line-strong); }
.tl-item { position: relative; padding-bottom: 2.4rem; }
.tl-item::before { content: ""; position: absolute; left: -2.4rem; top: .5rem; width: 13px; height: 13px; border-radius: 50%; background: var(--obsidian); border: 2px solid var(--cyan); box-shadow: 0 0 12px rgba(34,211,238,.5); }
.tl-year { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .12em; color: var(--cyan); margin-bottom: .4rem; }
.tl-item h3 { font-size: 1.06rem; margin-bottom: .35rem; }
.tl-item p { font-size: .93rem; margin-bottom: 0; }

/* ---------- 16. Filters + work cards ---------- */
.filter-bar { display: flex; gap: .55rem; flex-wrap: wrap; margin-bottom: 2.8rem; }
.filter-btn {
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase;
  padding: .55rem 1.1rem; border: 1px solid var(--line-strong); background: var(--glass);
  border-radius: 999px; color: var(--mist); cursor: pointer; transition: all .28s var(--ease);
}
.filter-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.filter-btn.is-active { background: var(--cyan); border-color: var(--cyan); color: var(--obsidian); }

/* Filter engine contract: main.js toggles .is-hidden on items. */
[data-filter-item].is-hidden { display: none !important; }
.filter-empty { text-align: center; padding: 3rem 0; color: var(--mist-dim); }

.work-card { background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.9rem; height: 100%; text-align: left; width: 100%; transition: border-color .35s var(--ease), transform .35s var(--ease); }
.work-card:hover { border-color: rgba(34,211,238,.35); transform: translateY(-4px); }
.work-tag { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); }
.work-card h3 { font-size: 1.1rem; margin: .85rem 0 .5rem; }
.work-card p { font-size: .92rem; margin-bottom: 1rem; }
.work-meta { font-family: var(--font-mono); font-size: .74rem; color: var(--mist-dim); border-top: 1px solid var(--line); padding-top: .9rem; }

/* ---------- 17. Case studies ---------- */
.case-block { border-top: 1px solid var(--line); padding-top: 3.6rem; margin-top: 3.6rem; }
.case-block:first-of-type { border-top: 0; margin-top: 0; padding-top: 0; }
.case-section h3 { font-size: 1.12rem; margin-top: 2.2rem; }
.case-section h3:first-child { margin-top: 0; }

/* ---------- 18. Insights / research articles ---------- */
.article { border-top: 1px solid var(--line); padding: 3rem 0; }
.article:first-of-type { border-top: 0; padding-top: 0; }
.article-meta { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: 1rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.article-meta .tag { color: var(--cyan); }
.article h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
.article-body { max-width: 72ch; }
.pullquote { border-left: 2px solid var(--cyan); padding-left: 1.4rem; margin: 2rem 0; color: var(--platinum); font-size: 1.08rem; }

/* ---------- 19. Testimonials ---------- */
.quote-feature { border-left: 2px solid var(--cyan); padding-left: 2.2rem; }
.quote-feature blockquote { font-family: var(--font-display); font-weight: 400; font-size: clamp(1.35rem, 2.5vw, 2rem); line-height: 1.32; letter-spacing: -.02em; color: var(--platinum); margin: 0 0 1.7rem; }
.quote-card { background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.8rem; break-inside: avoid; margin-bottom: 1.6rem; }
.quote-card p { font-size: .95rem; color: var(--platinum); }
.quote-attr { display: flex; align-items: center; gap: .85rem; margin-top: 1.3rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.quote-initial { width: 42px; height: 42px; flex: 0 0 42px; border-radius: 50%; background: rgba(34,211,238,.1); border: 1px solid rgba(34,211,238,.25); color: var(--cyan); display: grid; place-items: center; font-family: var(--font-mono); font-size: .85rem; }
.quote-name { font-weight: 600; font-size: .92rem; color: var(--platinum); line-height: 1.3; }
.quote-role { font-size: .82rem; color: var(--mist-dim); }

.masonry { column-count: 3; column-gap: 1.6rem; }
@media (max-width: 991px) { .masonry { column-count: 2; } }
@media (max-width: 575px) { .masonry { column-count: 1; } }

/* ---------- 20. Accordion ---------- */
.accordion-item { border: 1px solid var(--line) !important; border-radius: var(--radius-lg) !important; margin-bottom: 1rem; overflow: hidden; background: var(--glass); }
.accordion-button { font-family: var(--font-display); font-weight: 500; font-size: 1.02rem; color: var(--platinum); background: transparent; padding: 1.3rem 1.6rem; }
.accordion-button:not(.collapsed) { background: rgba(34,211,238,.06); color: var(--cyan); box-shadow: none; }
.accordion-button:focus { box-shadow: none; }
.accordion-button::after { filter: invert(1) grayscale(1); opacity: .5; }
.accordion-body { padding: 0 1.6rem 1.6rem; color: var(--mist); font-size: .95rem; }
.role-meta { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .08em; color: var(--mist-dim); margin-bottom: 1rem; }

/* ---------- 21. Forms ---------- */
.form-label { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: .55rem; }
.form-control, .form-select {
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  padding: .85rem 1.05rem; font-size: .95rem; background: var(--glass); color: var(--platinum);
}
.form-control:focus, .form-select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34,211,238,.13); background: var(--glass-hi); color: var(--platinum); }
.form-control::placeholder { color: var(--mist-dim); }
.form-select option { background: var(--space); color: var(--platinum); }
.form-check-input { background-color: var(--glass); border-color: var(--line-strong); }
.form-check-input:checked { background-color: var(--cyan); border-color: var(--cyan); }
.invalid-feedback { font-size: .83rem; }
.form-control[type="file"]::file-selector-button { background: var(--space-2); color: var(--platinum); border: 0; border-radius: 6px; padding: .35rem .8rem; margin-right: .8rem; }

.hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.form-status { border-radius: var(--radius); border: 0; font-size: .94rem; }
.form-status[hidden] { display: none !important; }
.form-status:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
button[aria-busy="true"] { opacity: .72; cursor: progress; }

/* ---------- 22. Contact rail ---------- */
.contact-rail { background: var(--space); border: 1px solid var(--line); border-radius: var(--radius-xl); padding: 2.4rem; height: 100%; }
.rail-item { padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.rail-item:last-child { border-bottom: 0; }
.rail-key { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: .5rem; }
.rail-val { color: var(--platinum); font-size: .95rem; line-height: 1.55; }
.rail-val a { color: var(--platinum); }
.rail-val a:hover { color: var(--cyan); }

.map-frame { border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--line); line-height: 0; }
.map-frame iframe { width: 100%; height: 380px; border: 0; filter: invert(.92) hue-rotate(180deg) saturate(.35) brightness(.95); }

/* ---------- 23. Legal ---------- */
.legal-body { max-width: 74ch; }
.legal-body h2 { font-size: 1.42rem; margin-top: 2.9rem; }
.legal-body h3 { font-size: 1.06rem; margin-top: 1.8rem; }
.legal-body ul { color: var(--mist); padding-left: 1.2rem; }
.legal-body li { margin-bottom: .5rem; }
.legal-updated { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .08em; color: var(--mist-dim); padding: .75rem 1.15rem; background: var(--glass); border: 1px solid var(--line); border-radius: 999px; display: inline-block; }
.legal-toc { background: var(--space); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.6rem; position: sticky; top: calc(var(--header-h) + 24px); }
.legal-toc h4 { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: 1rem; }
.legal-toc a { display: block; padding: .35rem 0; font-size: .88rem; color: var(--mist); }
.legal-toc a:hover { color: var(--cyan); }

.legal-table { width: 100%; font-size: .9rem; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.legal-table th { background: rgba(34,211,238,.07); color: var(--platinum); font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; padding: .85rem 1rem; text-align: left; }
.legal-table td { padding: .85rem 1rem; border-top: 1px solid var(--line); color: var(--mist); }

/* ---------- 24. CTA band ---------- */
.cta-band { background: var(--space); border: 1px solid var(--line); border-radius: var(--radius-xl); padding: clamp(2.6rem, 5vw, 4.4rem); position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: var(--grad-aurora); }
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { max-width: 19ch; }
.cta-band p { max-width: 52ch; }

/* ---------- 25. Footer ---------- */
.site-footer { background: var(--obsidian); border-top: 1px solid var(--line); padding: 5rem 0 0; }
.site-footer h4 { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--mist-dim); margin-bottom: 1.4rem; }
.site-footer a { color: var(--mist); font-size: .92rem; }
.site-footer a:hover { color: var(--cyan); }
.footer-links { padding: 0; margin: 0; }
.footer-links li { margin-bottom: .65rem; list-style: none; }

.footer-reach { display: flex; flex-direction: column; gap: .6rem; margin-top: 1.6rem; }
.footer-reach a { display: inline-flex; align-items: center; gap: .75rem; width: fit-content; transition: color .3s var(--ease), transform .3s var(--ease); }
.footer-reach a i { width: 34px; height: 34px; flex: 0 0 34px; border-radius: 50%; border: 1px solid var(--line-strong); display: grid; place-items: center; font-size: .92rem; transition: all .3s var(--ease); }
.footer-reach a:hover { color: var(--cyan); transform: translateX(3px); }
.footer-reach a:hover i { border-color: var(--cyan); color: var(--cyan); }

.footer-bottom { margin-top: 3.6rem; padding: 1.7rem 0; border-top: 1px solid var(--line); font-family: var(--font-mono); font-size: .75rem; color: var(--mist-dim); }
.footer-bottom a { color: var(--mist-dim); font-size: .75rem; }
.footer-bottom a:hover { color: var(--cyan); }

/* ---------- 26. Floating actions ---------- */
.float-wa, .to-top {
  position: fixed; right: 20px; z-index: 1040; width: 50px; height: 50px;
  border-radius: 50%; display: grid; place-items: center; box-shadow: var(--shadow);
  transition: all .3s var(--ease); border: 0;
}
.float-wa { bottom: 20px; background: #25D366; color: #fff; font-size: 1.4rem; }
.float-wa:hover { color: #fff; transform: scale(1.08); }
.to-top { bottom: 82px; background: var(--space-2); border: 1px solid var(--line-strong); color: var(--platinum); opacity: 0; visibility: hidden; }
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--cyan); color: var(--obsidian); }

/* ---------- 27. Reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 28. 404 ---------- */
.err-code { font-family: var(--font-mono); font-weight: 500; font-size: clamp(5rem, 17vw, 12rem); line-height: .9; letter-spacing: -.04em; }

/* ---------- 29. Responsive ---------- */
@media (max-width: 991px) {
  :root { --header-h: 68px; }
  .utility-bar { display: none; }
  .model-card, .legal-toc { position: static; }
  .quote-feature { padding-left: 1.3rem; }
  .aurora::before { width: 340px; height: 340px; }
}
@media (max-width: 575px) {
  .hero-meta { gap: 1.6rem; }
  .float-wa, .to-top { right: 14px; width: 46px; height: 46px; }
  .to-top { bottom: 74px; }
  .mc-row { flex-direction: column; gap: .3rem; }
  .mc-val { text-align: left; }
}

/* ---------- 30. Motion and print ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .utility-bar, .site-header, .site-footer, .float-wa, .to-top, .filter-bar, .aurora { display: none !important; }
  body { background: #fff; color: #000; }
  h1, h2, h3, .mc-val, .quote-card p { color: #000 !important; }
  .lattice::before { display: none; }
}