/* ARCA marketing site.
   Art direction: Swiss-minimal grid, hard near-neutral blacks, one amber.
   Fraunces carries display only; Inter runs the interface; JetBrains Mono
   labels the data. Green and red appear as approval semantics; amber is kept
   only for "pending / running", so the brand hue and the waiting hue are
   never the same colour. Every motion is transform/opacity and stops under
   prefers-reduced-motion. */

:root {
  color-scheme: light dark;

  --bg:#FFFFFF; --panel:#F4F4F5; --card:#FFFFFF; --sunken:#FAFAFA;
  /* --faint was #71717A, which is 4.40:1 on --panel — the demo card's own
     ground — and so failed AA for its label, counter and caption. */
  --text:#09090B; --dim:#52525B; --faint:#6B6B74;
  --border:#E4E4E7; --line:#D4D4D8;
  /* Amber accent. --accent is the brand value, but at 4.23:1 on white it
     is only safe for large text and non-text marks; --accent-ink (6.28:1)
     carries links and small text, and --accent-solid (4.99:1 under white)
     fills buttons. Never put small white text on --accent directly. */
  --accent:#B4690E; --accent-ink:#8F5100; --accent-tint:#FAF0E2;
  --accent-solid:#A55E0C; --on-accent:#FFFFFF;
  --ok:#137035; --ok-tint:#E8F3EC;
  --no:#B91C1C; --no-tint:#F8E9E7;

  --sans:"Inter","Segoe UI",-apple-system,"Helvetica Neue",sans-serif;
  --mono:"JetBrains Mono",Consolas,ui-monospace,SFMono-Regular,Menlo,monospace;
  /* Single-family precision system per ui-ux-pro-max: 700 at -0.045em for
     display, 600 at -0.03em for headings, 400 for body at normal tracking
     (the rules explicitly warn against tight tracking on body text), and
     500 uppercase at +0.12em for labels. Scale is 12/14/16/18/24/32. */
  --step--1:0.875rem; --step-0:1rem; --step-1:1.125rem;
  --step-2:1.5rem; --step-3:2rem;
  /* Motion tokens, unified so every animation shares one rhythm. */
  --t-fast:150ms; --t-base:250ms; --t-slow:350ms; --t-exit:170ms;

  --r-sm:4px; --r:8px; --r-lg:12px;
  --ease:cubic-bezier(.22,.7,.3,1);
  --col:1140px;
  --gut:24px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg:#08080A; --panel:#101012; --card:#141417; --sunken:#0C0C0E;
    --text:#FAFAFA; --dim:#A1A1AA; --faint:#84848D;
    --border:#232327; --line:#2E2E33;
    --accent:#E0A24E; --accent-ink:#EFBE7C; --accent-tint:#2A2013;
    --accent-solid:#E0A24E; --on-accent:#0B0B0C;
    --ok:#4ADE80; --ok-tint:#132318;
    --no:#F87171; --no-tint:#2A1616;
  }
}
*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
section, footer, [id] { scroll-margin-top:78px; }
body {
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  font-size:var(--step-0);
  line-height:1.6;
  letter-spacing:normal;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
button, a, summary, [role="button"] { touch-action:manipulation; -webkit-tap-highlight-color:transparent; }
.col { max-width:var(--col); margin:0 auto; padding:0 var(--gut); }
h1, h2, h3, h4 { text-wrap:balance; }
h1 {
  font-size:clamp(2.3rem, 5.4vw, 3.5rem); font-weight:700;
  line-height:1.04; letter-spacing:-.045em;
}
h2 {
  font-size:clamp(1.55rem, 3.2vw, var(--step-3)); font-weight:600;
  line-height:1.1; letter-spacing:-.03em; margin-bottom:16px;
}
h3 { font-size:var(--step-1); font-weight:600; letter-spacing:-.015em; line-height:1.3; margin-bottom:7px; }
p { max-width:66ch; text-wrap:pretty; }
p + p { margin-top:14px; }
.sub { color:var(--dim); }
strong, b { font-weight:600; }
a { color:var(--accent-ink); text-decoration-thickness:1px; text-underline-offset:3px; }
a:hover { color:var(--text); }
:where(a, button, summary, input, [tabindex]):focus-visible {
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:var(--r-sm);
}
.skip {
  position:absolute; left:var(--gut); top:-100px; z-index:100;
  background:var(--text); color:var(--bg);
  padding:10px 16px; border-radius:var(--r); font-size:.9rem; text-decoration:none;
  transition:top .18s var(--ease);
}
.skip:focus { top:12px; color:var(--bg); }
.visually-hidden {
  position:absolute; width:1px; height:1px; overflow:hidden;
  clip-path:inset(50%); white-space:nowrap;
}
/* ------------------------------------------------------------- eyebrow */

.eyebrow {
  font-weight:600;
  font-size:.7rem; font-weight:500;
  letter-spacing:.14em; text-transform:uppercase;
  color:var(--accent-ink);
  margin-bottom:16px;
  display:flex; align-items:center; gap:12px;
}
.eyebrow::after { content:""; height:1px; flex:0 0 48px; background:var(--line); }
.eyebrow .n { color:var(--faint); font-variant-numeric:tabular-nums; }
/* -------------------------------------------------------------- header */

.site-head {
  position:sticky; top:0; z-index:40;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:border-color .22s ease;
}
.site-head.scrolled { border-bottom-color:var(--border); }
.site-head .col { display:flex; align-items:center; gap:28px; height:64px; }
.wordmark {
  display:inline-flex; align-items:center; gap:10px;
  font-size:1.15rem; font-weight:700; letter-spacing:-.04em;
  color:var(--text); text-decoration:none; padding:8px 0;
}
/* Sized in CSS, not only by the inline width/height attributes. The sub-pages
   wrap the mark in a span and omitted those, so the asset rendered at its
   native 1024px and swallowed the page. */
.wordmark img { width:26px; height:26px; border-radius:7px; display:block; }
.wordmark .mark { display:inline-flex; }
.wordmark:hover { color:var(--text); }
.site-nav { display:flex; gap:24px; margin-left:auto; }
.site-nav a {
  color:var(--dim); text-decoration:none; font-size:.9rem;
  padding:12px 0;
  transition:color var(--t-fast) ease;
}
.site-nav a:hover { color:var(--text); }
/* Below this the five links crowd the mark and the CTA off the bar; the
   footer and the sticky CTA carry navigation from here down. */
@media (max-width:760px) {
  .site-nav { display:none; }
  .site-head .col { gap:14px; }
}
/* ------------------------------------------------------------- buttons */

.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--sans); font-size:.92rem; font-weight:500; text-decoration:none;
  padding:13px 20px; border-radius:var(--r);
  border:1px solid var(--border); color:var(--text); background:var(--card);
  cursor:pointer;
  transition:transform .16s var(--ease), border-color .16s ease, background-color .16s ease, color .16s ease;
}
.btn:hover { border-color:var(--line); color:var(--text); transform:translateY(-1px); }
.btn:active { transform:translateY(0) scale(.97); }
.btn:active { transform:translateY(0) scale(.985); }
.btn-primary { background:var(--accent-solid); border-color:var(--accent-solid); color:var(--on-accent); }
.btn-primary:hover { background:var(--accent-ink); border-color:var(--accent-ink); color:var(--on-accent); }
@media (prefers-color-scheme: dark) {
  .btn-primary:hover { color:#0B0B0C; }
}
.site-head .btn { padding:10px 16px; font-size:.86rem; }
/* ---------------------------------------------------------------- hero */

.hero { padding:76px 0 56px; border-bottom:1px solid var(--border); }
.hero .col { display:grid; grid-template-columns:1.02fr .98fr; gap:56px; align-items:start; }
@media (max-width:940px) { .hero .col { grid-template-columns:1fr; gap:40px; } }
.hero-mark { width:44px; height:44px; border-radius:11px; display:block; margin-bottom:22px; }
.tagline {
  display:inline-flex; align-items:center; gap:9px;
  font-size:.68rem; letter-spacing:.13em; text-transform:uppercase;
  color:var(--dim);
  border:1px solid var(--border); border-radius:var(--r-sm);
  padding:5px 12px 5px 10px; margin-bottom:22px;
}
.tagline::before {
  content:""; width:6px; height:6px; border-radius:50%;
  background:var(--accent); flex:none;
}
.hero h1 em { font-style:normal; color:var(--accent); font-weight:700; }
.hero h1 + p { margin-top:20px; font-size:1.08rem; color:var(--dim); }
.hero-cta { display:flex; gap:10px; flex-wrap:wrap; margin-top:28px; }
.hero-note {
  margin-top:20px; font-size:.72rem;
  color:var(--faint); letter-spacing:.02em; max-width:52ch; line-height:1.7;
}
.hero .layer, .hero .visually-hidden { grid-column:1 / -1; }
/* ----------------------------------------------------------- hero demo */

.demo {
  border:1px solid var(--border); border-radius:var(--r-lg);
  background:var(--panel); padding:16px; position:relative; overflow:hidden;
}
.demo-head { display:flex; align-items:center; gap:10px; margin-bottom:12px; }
.demo-label {
  font-size:.64rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--faint);
}
.demo-count {
  font-family:var(--mono); font-size:.62rem; color:var(--faint);
  font-variant-numeric:tabular-nums; margin-left:auto;
}
/* The guidelines require a stop control on autoplaying motion that runs
   past five seconds beside other content. */
.demo-ctl {
  width:26px; height:26px; flex:none; position:relative;
  display:grid; place-items:center; cursor:pointer;
  border:1px solid var(--border); border-radius:var(--r-sm);
  background:var(--card); color:var(--dim);
  transition:border-color var(--t-fast) ease, color var(--t-fast) ease;
}
.demo-ctl::after { content:""; position:absolute; inset:-9px; }
.demo-ctl:hover { border-color:var(--line); color:var(--text); }
/* Two bars while playing (press to pause), one triangle while paused. */
.demo-ctl-icon {
  width:8px; height:9px; border-left:2.5px solid currentColor;
  border-right:2.5px solid currentColor;
}
.demo.paused .demo-ctl-icon {
  width:0; height:0; border-left:8px solid currentColor; border-right:0;
  border-top:5px solid transparent; border-bottom:5px solid transparent;
  margin-left:2px;
}
.demo-mail {
  border:1px solid var(--border); border-radius:var(--r);
  background:var(--card); padding:13px 15px;
  opacity:0; transform:translateY(8px);
  transition:opacity .5s var(--ease), transform .5s var(--ease);
}
.demo[data-stage="1"] .demo-mail,
.demo[data-stage="2"] .demo-mail,
.demo[data-stage="3"] .demo-mail,
.demo[data-stage="4"] .demo-mail { opacity:1; transform:none; }
.demo-mail .from { font-family:var(--mono); font-size:.68rem; color:var(--faint); }
.demo-mail .subj { font-weight:600; font-size:.94rem; margin:5px 0 6px; }
.demo-mail .line { font-size:.88rem; color:var(--dim); }
.demo-mail mark {
  background:var(--no-tint); color:var(--no);
  padding:1px 4px; border-radius:var(--r-sm); font-weight:500;
}
/* Approval card. Structure adapted from 21st.dev's agent-elements approval
   pattern: state strip, mono body naming the exact target, a footer band
   carrying the two decisions. */
.demo-card {
  margin-top:12px;
  border:1px solid var(--border); border-radius:var(--r);
  background:var(--card); overflow:hidden;
  opacity:0; transform:translateY(10px);
  transition:opacity .45s var(--ease), transform .45s var(--ease);
}
.demo[data-stage="2"] .demo-card,
.demo[data-stage="3"] .demo-card,
.demo[data-stage="4"] .demo-card { opacity:1; transform:none; }
.demo-card .kind {
  display:flex; align-items:center; gap:8px;
  font-size:.64rem; letter-spacing:.13em; text-transform:uppercase;
  color:var(--dim); padding:8px 13px;
  border-bottom:1px solid var(--border); background:var(--sunken);
}
.demo-card .kind::before {
  content:""; width:5px; height:5px; border-radius:50%; background:var(--accent); flex:none;
}
.demo[data-mode="auto"] .demo-actions { display:none; }
.demo[data-mode="auto"] .demo-card .kind::before { background:var(--ok); }
.demo[data-mode="auto"] .demo-card { border-left:3px solid var(--ok); }
.demo[data-mode="gate"] .demo-card { border-left:3px solid var(--accent); }
.demo-verdict.no { color:var(--no); background:var(--no-tint); }
.demo-card .body { padding:12px 13px; }
.demo-card .what { font-family:var(--mono); font-size:.84rem; }
.demo-card .what b { color:var(--accent-ink); font-weight:500; }
.demo-card .detail { font-size:.82rem; color:var(--faint); margin-top:7px; line-height:1.55; }
.demo-actions {
  display:flex; gap:7px; justify-content:flex-end; align-items:center;
  padding:8px 10px; border-top:1px solid var(--border); background:var(--sunken);
}
.demo-btn {
  font-size:.79rem; font-weight:500; padding:5px 12px; border-radius:var(--r-sm);
  border:1px solid var(--border); color:var(--dim); background:var(--card);
  transition:opacity .3s ease, background-color .3s ease, color .3s ease;
}
.demo-btn.primary { background:var(--accent-solid); border-color:var(--accent-solid); color:var(--on-accent); }
/* Which button lights up depends on the decision the scenario reaches. */
.demo[data-choice="no"]:is([data-stage="3"], [data-stage="4"]) .demo-btn.decline {
  background:var(--no-tint); border-color:var(--no-tint); color:var(--no);
}
.demo[data-choice="no"]:is([data-stage="3"], [data-stage="4"]) .demo-btn.primary { opacity:.4; }
.demo[data-choice="yes"]:is([data-stage="3"], [data-stage="4"]) .demo-btn.primary {
  background:var(--ok); border-color:var(--ok); color:#FFFFFF;
}
.demo[data-choice="yes"]:is([data-stage="3"], [data-stage="4"]) .demo-btn.decline { opacity:.4; }
.demo-verdict {
  display:flex; align-items:center; gap:8px;
  font-size:.8rem; color:var(--ok); background:var(--ok-tint);
  padding:9px 13px; border-top:1px solid var(--border);
  max-height:0; opacity:0; overflow:hidden; padding-top:0; padding-bottom:0;
  transition:max-height .35s var(--ease), opacity .3s ease, padding .35s var(--ease);
}
.demo[data-stage="4"] .demo-verdict { max-height:60px; opacity:1; padding-top:9px; padding-bottom:9px; }
.demo.paused .demo-mail,
.demo.paused .demo-card { opacity:1; transform:none; }
.demo-caption {
  margin-top:13px; font-size:.79rem; color:var(--faint); line-height:1.55;
  border-top:1px solid var(--border); padding-top:12px;
}
/* Typing indicator — the 3-dot pulse the AI-Native UI profile specifies,
   at its prescribed 8px dot size. It shows the agent thinking before the
   approval card arrives, so the demo reads as cause and effect. */
.demo-think {
  display:flex; align-items:center; gap:9px;
  margin-top:12px; padding:10px 13px;
  border:1px solid var(--border); border-radius:var(--r);
  background:var(--card);
  opacity:0; transform:translateY(6px);
  transition:opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}
.demo[data-stage="1"] .demo-think { opacity:1; transform:none; }
.demo[data-stage="2"] .demo-think,
.demo[data-stage="3"] .demo-think,
.demo[data-stage="4"] .demo-think { opacity:0; transform:translateY(-4px); }
.demo-think .dots { display:inline-flex; gap:5px; flex:none; }
.demo-think .dots i {
  width:8px; height:8px; border-radius:50%; background:var(--accent);
  animation:think-pulse 1.4s ease-in-out infinite;
}
.demo-think .dots i:nth-child(2) { animation-delay:.18s; }
.demo-think .dots i:nth-child(3) { animation-delay:.36s; }
.demo-think span {
  font-size:.68rem; letter-spacing:.1em;
  text-transform:uppercase; color:var(--faint);
}
@keyframes think-pulse {
  0%, 60%, 100% { opacity:.25; transform:scale(.85); }
  30%           { opacity:1;   transform:scale(1); }
}
/* -------------------------------------------------------------- layers */

.layer { border-top:1px solid var(--border); margin-top:44px; padding-top:20px; }
.layer .lab {
  font-size:.64rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--faint); margin-bottom:13px;
}
.chips { display:flex; flex-wrap:wrap; gap:7px; align-items:center; }
.chip {
  display:inline-flex; align-items:center; gap:7px;
  border:1px solid var(--border); border-radius:var(--r-sm);
  padding:5px 12px 5px 7px; font-size:.82rem; color:var(--dim); background:var(--card);
}
.chip img { width:17px; height:17px; border-radius:4px; display:block; }
.chip.soon { color:var(--faint); border-style:dashed; padding-left:12px; }
.chip.soon::after {
  content:"next"; font-size:.58rem; letter-spacing:.1em;
  text-transform:uppercase; color:var(--faint);
  border:1px solid var(--border); border-radius:var(--r-sm); padding:1px 6px;
}
/* ------------------------------------------------------------ sections */

section { padding:80px 0; border-bottom:1px solid var(--border); }
section > .col > h2 { max-width:20ch; }
section > .col > .sub { margin-top:2px; }
/* the confidence ledger */

.ledger { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:38px; }
@media (max-width:820px) { .ledger { grid-template-columns:1fr; } }
.lane {
  border:1px solid var(--border); border-left:3px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--card); overflow:hidden;
  transition:border-color var(--t-base) ease, transform var(--t-base) var(--ease);
}
.lane:hover { transform:translateY(-2px); }
.lane.auto { border-left-color:var(--ok); }
.lane.ask { border-left-color:var(--accent); }
.lane > header {
  display:flex; align-items:center; gap:10px;
  padding:14px 18px; border-bottom:1px solid var(--border); background:var(--sunken);
}
.lane .dot { width:7px; height:7px; border-radius:50%; flex:none; }
.lane.auto .dot { background:var(--ok); }
.lane.ask .dot { background:var(--accent); }
.lane h3 { margin:0; font-size:.94rem; }
.lane .tag {
  margin-left:auto; font-size:.62rem;
  letter-spacing:.12em; text-transform:uppercase; color:var(--faint);
}
.lane ul { list-style:none; padding:8px 18px 18px; }
.lane li {
  padding:11px 0 11px 22px; border-bottom:1px solid var(--border);
  font-size:.9rem; color:var(--dim); position:relative;
}
.lane li:last-child { border-bottom:0; padding-bottom:2px; }
.lane li::before {
  content:""; position:absolute; left:2px; top:18px;
  width:9px; height:1px; background:var(--line);
}
.lane li b { color:var(--text); font-weight:550; }
.lane > p {
  padding:0 18px 18px; font-size:.82rem; color:var(--faint); line-height:1.6;
  border-top:1px solid var(--border); padding-top:14px; max-width:none;
}
/* the connected layer — a dense row list rather than three prose cards, so
   the section can state what is connected without a paragraph under every
   heading. Same hairline rhythm as the FAQ. */

.rows { margin-top:38px; border-top:1px solid var(--border); }
.rows > div {
  display:grid; grid-template-columns:172px 1fr; gap:8px 28px;
  padding:20px 0; border-bottom:1px solid var(--border);
}
.rows dt {
  font-size:.66rem; letter-spacing:.13em;
  text-transform:uppercase; color:var(--faint); padding-top:4px;
}
.rows dd { margin:0; }
.rows dd b { display:block; font-weight:600; font-size:.98rem; letter-spacing:-.012em; }
.rows dd span { display:block; margin-top:5px; font-size:.9rem; color:var(--dim); max-width:60ch; }
@media (max-width:640px) {
  .rows > div { grid-template-columns:1fr; gap:9px; padding:18px 0; }
}
/* bento — asymmetric grid adapted from 21st.dev's feature-bento: a 2x2
   anchor tile with lighter cells around it. The mechanic is theirs; the
   gradients, photo fills, blurred colour blobs and ping animations are
   dropped, because this palette is black, white and one blue. */

.bento {
  display:grid; gap:12px; margin-top:38px;
  grid-template-columns:repeat(4, 1fr);
  grid-auto-rows:minmax(178px, auto);
}
@media (max-width:940px) { .bento { grid-template-columns:repeat(2, 1fr); } }
@media (max-width:560px) { .bento { grid-template-columns:1fr; grid-auto-rows:auto; } }
.cell {
  border:1px solid var(--border); border-radius:var(--r-lg);
  background:var(--card); padding:22px;
  display:flex; flex-direction:column; justify-content:flex-end;
  transition:border-color .18s ease, transform .18s var(--ease);
}
.cell:hover { border-color:var(--line); }
/* The anchor is the black slab the mark sits on — the same ground as the
   CTA band, fixed in both themes. */
.cell.anchor {
  grid-column:span 2; grid-row:span 2;
  background:#09090B; border-color:#09090B; color:#FAFAFA;
  justify-content:flex-end; gap:14px;
}
@media (max-width:940px) { .cell.anchor { grid-column:span 2; grid-row:span 1; } }
@media (max-width:560px) { .cell.anchor { grid-column:span 1; } }
.cell.anchor img { border-radius:11px; display:block; margin-bottom:auto; }
.cell.anchor h3 {
  font-size:clamp(1.35rem, 2.4vw, 1.8rem);
  font-weight:700; line-height:1.12; letter-spacing:-.04em; color:#FAFAFA;
  margin-bottom:0; max-width:20ch;
}
.cell.anchor p { color:rgba(250,250,250,.72); font-size:.92rem; max-width:44ch; }
.anchor-foot {
  font-size:.62rem; letter-spacing:.13em;
  text-transform:uppercase; color:#E0A24E;
  border-top:1px solid rgba(250,250,250,.14); padding-top:13px;
}
.cell.stat b {
  /* The only genuinely numeric thing on the page, so the only place a code
     face earns its keep. Everything that merely labels a value is plain sans. */
  font-family:var(--mono);
  display:block; font-size:clamp(2.4rem, 4vw, 3.1rem);
  font-weight:700; line-height:1; letter-spacing:-.05em;
  font-variant-numeric:tabular-nums; margin-bottom:10px;
}
.cell.stat span { font-size:.79rem; color:var(--faint); line-height:1.45; max-width:20ch; }
.cell.cta {
  background:var(--accent-solid); border-color:var(--accent-solid);
  color:var(--on-accent); text-decoration:none;
  justify-content:space-between; gap:12px;
}
.cell.cta:hover {
  border-color:var(--accent-ink); background:var(--accent-ink);
  color:var(--on-accent); transform:translateY(-2px);
}
.cta-kind {
  font-size:.62rem; letter-spacing:.13em;
  text-transform:uppercase;
}
.cta-line { font-size:1.22rem; font-weight:600; line-height:1.24; letter-spacing:-.03em; }
.cta-go {
  align-self:flex-start; font-size:1.1rem; line-height:1;
  transition:transform .22s var(--ease);
}
.cell.cta:hover .cta-go { transform:translate(3px, -3px); }
/* cards */

.cards { display:grid; grid-template-columns:repeat(auto-fit, minmax(272px,1fr)); gap:16px; margin-top:38px; }
.card {
  border:1px solid var(--border); border-radius:var(--r-lg);
  background:var(--card); padding:22px;
  transition:border-color .18s ease, transform .18s var(--ease);
}
.card:hover { border-color:var(--line); transform:translateY(-2px); }
.card p { font-size:.9rem; color:var(--dim); }
.ci {
  width:34px; height:34px; border-radius:var(--r); margin-bottom:16px;
  display:grid; place-items:center;
  border:1px solid var(--border); background:var(--sunken);
}
.ci svg { width:17px; height:17px; fill:none; stroke:var(--accent); stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; }
.pill {
  display:inline-block; font-size:.6rem;
  letter-spacing:.12em; text-transform:uppercase;
  padding:3px 8px; border-radius:var(--r-sm); margin-bottom:11px;
}
.pill.ok { color:var(--ok); background:var(--ok-tint); }
.pill.gate { color:var(--accent-ink); background:var(--accent-tint); }
.pill.no { color:var(--no); background:var(--no-tint); }
/* walkthrough */

.walk { counter-reset:w; margin-top:34px; list-style:none; }
.walk li {
  counter-increment:w; position:relative;
  padding:20px 0 20px 52px; border-top:1px solid var(--border);
}
.walk li::before {
  content:counter(w, decimal-leading-zero);
  position:absolute; left:0; top:20px;
  font-size:.72rem; color:var(--accent-ink);
  letter-spacing:.08em; font-variant-numeric:tabular-nums;
}
.walk p { font-size:.94rem; color:var(--dim); }
.walk strong { color:var(--text); }
/* team */

.team-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(288px,1fr)); gap:16px; margin-top:38px; }
.founder {
  border:1px solid var(--border); border-radius:var(--r-lg);
  background:var(--card); padding:22px;
}
.founder .role {
  font-size:.62rem; letter-spacing:.13em;
  text-transform:uppercase; color:var(--faint); margin-bottom:9px;
}
.founder h3 { font-size:1.28rem; font-weight:700; letter-spacing:-.035em; margin-bottom:10px; }
.founder p { font-size:.9rem; color:var(--dim); }
.founder a { font-size:.8rem; }
.photo-slot {
  margin-top:16px; border:1px dashed var(--border); border-radius:var(--r-lg);
  padding:30px 22px; text-align:center; color:var(--faint); font-size:.85rem;
  background:var(--sunken);
}
/* faq */

.faq details {
  border-top:1px solid var(--border);
  padding:2px 0;
}
.faq details:last-of-type { border-bottom:1px solid var(--border); }
.faq summary {
  cursor:pointer; list-style:none; padding:18px 34px 18px 0;
  font-weight:550; font-size:1rem; position:relative;
}
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after {
  content:""; position:absolute; right:6px; top:50%;
  width:9px; height:9px; margin-top:-6px;
  border-right:1.5px solid var(--faint); border-bottom:1.5px solid var(--faint);
  transform:rotate(45deg); transform-origin:center;
  transition:transform .22s var(--ease);
}
.faq details[open] summary::after { transform:rotate(-135deg); margin-top:-2px; }
.faq details p { padding:0 0 20px; color:var(--dim); font-size:.94rem; }
.faq h2 { margin-bottom:26px; }
/* CTA band */

/* The band is a fixed black slab in both themes — it is the mark's own
   ground. Inverting it with the theme flipped the amber eyebrow onto a
   near-white field at 2.13:1. */
.cta-band { background:#09090B; color:#FAFAFA; border-bottom:0; text-align:center; }
.cta-band .col { display:flex; flex-direction:column; align-items:center; }
.cta-band h2 { color:#FAFAFA; max-width:22ch; }
.cta-band .eyebrow { color:#E0A24E; justify-content:center; }
.cta-band .eyebrow::after { background:rgba(250,250,250,.22); }
.cta-band .eyebrow .n { color:rgba(250,250,250,.58); }
.cta-band .btn-primary { margin-top:26px; }
.band-mark { width:56px; height:56px; border-radius:14px; margin-bottom:24px; display:block; }
.fineprint {
  margin-top:18px; font-size:.82rem;
  color:rgba(250,250,250,.68);
  max-width:48ch;
}
/* footer */

footer { padding:34px 0; background:var(--bg); }
footer .col {
  display:flex; flex-wrap:wrap; align-items:center; gap:8px 22px;
  font-size:.84rem; color:var(--faint);
}
footer a { color:var(--faint); text-decoration:none; display:inline-block; padding:11px 0; }
footer a:hover { color:var(--text); text-decoration:underline; }
footer .sep { margin-left:auto; }
.mark-sm { width:19px; height:19px; border-radius:5px; vertical-align:-4px; margin-right:9px; }
/* sticky CTA */

.sticky-cta {
  position:fixed; left:0; right:0; bottom:0; z-index:35;
  padding:11px var(--gut) calc(11px + env(safe-area-inset-bottom));
  background:color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter:blur(14px);
  border-top:1px solid var(--border);
  display:none;
}
.sticky-cta .btn { width:100%; }
@media (max-width:700px) { .sticky-cta { display:block; } body { padding-bottom:74px; } }
/* interior pages */

.crumbs { font-size:.82rem; color:var(--faint); padding:28px 0 0; }
.crumbs a { color:var(--faint); }
.page { padding:34px 0 84px; }
.page h1 { font-size:clamp(2rem, 4.4vw, 2.9rem); margin-bottom:18px; }
.page h2 { font-size:1.35rem; margin:38px 0 12px; }
.page p, .page li { color:var(--dim); font-size:.96rem; }
.page ul { margin:12px 0 0 20px; }
.page li { margin-bottom:8px; }
.centred { min-height:66vh; display:grid; place-items:center; text-align:center; }
.centred .col > * { margin-inline:auto; }
/* investors */

.brief { display:grid; grid-template-columns:repeat(auto-fit, minmax(240px,1fr)); gap:1px; background:var(--border); border:1px solid var(--border); border-radius:var(--r-lg); overflow:hidden; margin:32px 0; }
.brief > div { background:var(--bg); padding:22px; }
.brief dt { font-size:.62rem; letter-spacing:.13em; text-transform:uppercase; color:var(--faint); margin-bottom:8px; }
.brief dd { font-size:.92rem; color:var(--text); }
/* scroll reveals — subtle tier: 12px, 350ms, ease-out */

.reveal {
  opacity:0; transform:translateY(12px);
  transition:opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
  transition-delay:calc(var(--i, 0) * 45ms);
}
.reveal.in { opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *, *::before, *::after {
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal { opacity:1; transform:none; }
}