/* =========================================================================
   Axiotheon landing — OjoCentauri universe
   Editorial-forensic dossier: warm paper, navy ink, sea-green thread,
   gold reserved for findings. Light only; no purple, no dark theme.
   ========================================================================= */

:root {
  /* paper */
  --paper:       #F8F4ED;   /* page (warm, between acerting cream and atagia paper) */
  --paper-2:     #F2ECE0;   /* banded sections */
  --card:        #FFFDF8;   /* exhibit sheets, form */
  /* ink */
  --ink:         #1C2836;
  --ink-2:       #32445C;
  --muted:       #52626E;   /* secondary text, AA on paper */
  --faint:       #62707D;   /* hints and apparatus, still AA */
  /* rules */
  --line:        #DDD3C2;
  --line-strong: #C8BCA6;
  /* thread colors */
  --sea:         #2E7D63;   /* affirmative / verified */
  --sea-deep:    #1F5F4B;   /* text-safe sea */
  --gold:        #B8953E;   /* findings only — decorative */
  --gold-ink:    #7E5E15;   /* text-safe gold */
  --gold-bg:     rgba(184, 149, 62, .10);
  /* effects */
  --shadow-sheet: 0 1px 2px rgba(28, 40, 54, .05), 0 14px 34px -20px rgba(28, 40, 54, .28);
  --shadow-lift:  0 2px 6px rgba(28, 40, 54, .07), 0 20px 44px -22px rgba(28, 40, 54, .32);
  --r-sm: 3px; --r-md: 5px;
  --ease: cubic-bezier(0.25, 0.8, 0.25, 1);
  --maxw: 1180px;
  --pad: clamp(1.1rem, 4vw, 2rem);
  --font-display: 'Outfit', 'Barlow', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-mono: 'DM Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; margin: 0; font-weight: 700; letter-spacing: -0.02em; }
p, blockquote, dl, dd, figure { margin: 0; }
a { color: var(--sea-deep); text-decoration: none; }
a:hover { color: var(--ink); }
img, svg { display: block; max-width: 100%; }
::selection { background: rgba(184, 149, 62, .28); }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }
.narrow { max-width: 760px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; border-radius: 0 0 var(--r-md) 0;
}
.skip-link:focus { left: 0; }

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

section[id] { scroll-margin-top: 76px; }

/* paper grain */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- type apparatus (the forensic voice) ---------- */
.eyebrow, .exhibit-tag, .exhibit-loc, .trace-type, .trace-label,
.sev, .tag-finding, .cl, .out-label, .folio-no, .folio-title, .ledger-no,
.gloss-tag, .redact-hint, .method-note, .faq-no, .form-head, .dev-link {
  font-family: var(--font-mono);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--font-display); font-weight: 600; font-size: .98rem; letter-spacing: .005em;
  padding: .72rem 1.4rem; border-radius: var(--r-md); border: 1px solid transparent;
  cursor: pointer; white-space: nowrap;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: var(--shadow-sheet); }
.btn-primary:hover { background: var(--sea-deep); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-lift); }
.btn-ghost { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-lg { padding: .9rem 1.7rem; font-size: 1.05rem; }
.btn-block { width: 100%; padding: .95rem; font-size: 1.05rem; }
.text-link { font-family: var(--font-display); font-weight: 600; color: var(--ink-2); border-bottom: 1px solid var(--line-strong); padding-bottom: .1em; }
.text-link span { transition: margin .25s var(--ease); display: inline-block; }
.text-link:hover { color: var(--sea-deep); border-color: var(--sea); }
.text-link:hover span { margin-left: .25rem; }

/* ---------- file meta strip ---------- */
.file-meta {
  display: flex; justify-content: space-between; gap: 1rem;
  max-width: var(--maxw); margin-inline: auto; padding: .5rem var(--pad) .45rem;
  font-family: var(--font-mono); font-size: .62rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--faint);
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(248, 244, 237, .96);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}
.site-header::before { /* double-rule top edge, like a printed report head */
  content: ""; position: absolute; top: 2px; left: 0; right: 0; height: 1px; background: var(--line-strong);
}
.header-inner { display: flex; align-items: center; gap: 1.5rem; height: 62px; }
.brand { display: flex; align-items: center; gap: .55rem; color: var(--ink); }
.brand-mark { flex: none; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 1.18rem; letter-spacing: -0.02em; }
.site-nav { display: flex; gap: 1.5rem; margin-left: auto; }
.site-nav a { color: var(--muted); font-size: .93rem; font-weight: 500; border-bottom: 1px solid transparent; padding-bottom: .15em; }
.site-nav a:hover { color: var(--ink); border-color: var(--line-strong); }
.header-cta { margin-left: .4rem; padding-block: .5rem; font-size: .92rem; }

/* ---------- hero ---------- */
.hero { position: relative; padding-top: clamp(3.5rem, 7vw, 6rem); padding-bottom: clamp(3.5rem, 8vw, 6.5rem); }
.hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: clamp(2.5rem, 5vw, 5rem); align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1.3rem;
}
.tick { width: 8px; height: 8px; background: var(--sea); flex: none; }
.hero-h1 { font-size: clamp(2.4rem, 5.2vw, 3.8rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.04; }
.h1-soft {
  font-family: var(--font-serif); font-style: italic; font-weight: 400;
  font-size: .9em; letter-spacing: -0.01em; color: var(--sea-deep);
}
.hero-sub { margin-top: 1.5rem; font-size: 1.12rem; color: var(--muted); max-width: 40ch; }
.hero-confidential {
  margin-top: 1.4rem; display: flex; gap: .6rem; align-items: flex-start;
  font-size: .96rem; color: var(--ink-2); max-width: 44ch;
}
.hero-confidential .ico { flex: none; width: 20px; height: 20px; margin-top: .1rem; fill: none; stroke: var(--sea); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.hero-cta-row { margin-top: 2.1rem; display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap; }

/* ---------- exhibit sheets (trace cards) ---------- */
.trace-card {
  position: relative; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--r-md);
  box-shadow: var(--shadow-sheet);
}
.hero-exhibit { position: relative; }
.hero-exhibit .trace-card { transform: rotate(-.4deg); }
.hero-exhibit .trace-card::before { /* the sheet beneath: a stacked-pages hint */
  content: ""; position: absolute; z-index: -1; inset: 10px -9px -10px 9px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-md);
  transform: rotate(1deg);
}
.trace-head {
  display: flex; align-items: center; gap: .8rem; flex-wrap: wrap;
  padding: .8rem 1.2rem; border-bottom: 1px solid var(--line);
}
.tag-finding {
  font-size: .62rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 500;
  color: var(--gold-ink); background: var(--gold-bg); border: 1px solid rgba(184, 149, 62, .45);
  padding: .24rem .55rem .18rem; border-radius: var(--r-sm);
}
.trace-type { font-size: .82rem; color: var(--ink-2); }
.sev { font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; margin-left: auto; color: var(--faint); }
.sev-high { color: var(--gold-ink); }
.trace-label {
  font-size: .62rem; color: var(--faint); text-transform: uppercase; letter-spacing: .14em;
  padding: .45rem 1.2rem; border-bottom: 1px dashed var(--line);
}
.trace-body { padding: 1.3rem 1.2rem 1.2rem; }
.exhibit-tag { font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--sea-deep); margin-bottom: .55rem; }
.exhibit-tag .qrole { color: var(--faint); letter-spacing: .1em; text-transform: none; }
.exhibit-quote p {
  font-family: var(--font-serif); font-size: 1.06rem; line-height: 1.55; color: var(--ink);
}
.exhibit-quote[lang] p { font-style: italic; }
.quote-gloss { font-size: .9rem; color: var(--muted); margin-top: .45rem; }
.gloss-tag { font-size: .62rem; color: var(--faint); display: inline-block; margin-left: .3rem; letter-spacing: .04em; }
.exhibit-loc { font-size: .72rem; color: var(--faint); margin-top: .55rem; word-break: break-word; }

.conflict-knot { display: flex; align-items: center; gap: .8rem; margin: 1rem 0; }
.knot-line { flex: 1; height: 0; border-top: 1px dashed var(--line-strong); }
.conflict-knot em, .trace-divider em {
  font-family: var(--font-mono); font-style: normal; font-size: .6rem;
  letter-spacing: .22em; text-transform: uppercase; color: var(--gold-ink);
}
.trace-foot { border-top: 1px solid var(--line); padding: 1rem 1.2rem 1.1rem; background: linear-gradient(180deg, rgba(184, 149, 62, .035), transparent 65%); }
.counter, .verdict { font-size: .9rem; color: var(--muted); }
.counter { margin-bottom: .55rem; }
.cl {
  display: inline-block; font-size: .62rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--faint); margin-right: .45rem;
}
.verdict { color: var(--ink-2); }
.verdict-why { color: var(--muted); }
.stamp {
  display: inline-block; font-family: var(--font-mono); font-size: .68rem; font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase; color: var(--sea-deep);
  border: 1.5px solid currentColor; border-radius: var(--r-sm);
  padding: .16em .5em .1em .62em; transform: rotate(-1.6deg); margin-right: .35rem;
}

/* ---------- ledger strip ---------- */
.ledger { border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); background: var(--paper-2); position: relative; }
.ledger::before, .ledger::after { /* double rules, ledger-style */
  content: ""; position: absolute; left: 0; right: 0; height: 1px; background: var(--line);
}
.ledger::before { top: 3px; }
.ledger::after { bottom: 3px; }
.ledger-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.ledger-item { padding: 1.9rem 1.6rem 1.9rem 1.4rem; border-left: 1px solid var(--line); }
.ledger-item:first-child { border-left: 0; padding-left: 0; }
.ledger-h { font-family: var(--font-display); font-size: .98rem; font-weight: 600; letter-spacing: 0; color: var(--ink); margin-bottom: .5rem; }
.ledger-no { font-family: var(--font-mono); font-size: .78rem; color: var(--gold-ink); margin-right: .35rem; }
.ledger-item p { font-size: .92rem; color: var(--muted); line-height: 1.55; }

/* ---------- folio (section apparatus) ---------- */
.folio { display: flex; align-items: baseline; gap: .9rem; margin-bottom: clamp(2rem, 4vw, 2.8rem); }
.folio-no { font-size: .78rem; color: var(--gold-ink); letter-spacing: .08em; }
.folio-title { font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
.folio-rule { flex: 1; align-self: center; height: 1px; background: var(--line-strong); }

/* ---------- generic section ---------- */
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); position: relative; }
.section-head { margin-bottom: clamp(2rem, 4vw, 3rem); max-width: 34ch; }
.section-title { font-size: clamp(1.7rem, 3.4vw, 2.5rem); letter-spacing: -0.03em; }
.lede {
  font-family: var(--font-serif); font-size: clamp(1.25rem, 2.3vw, 1.5rem);
  line-height: 1.55; color: var(--ink-2); letter-spacing: 0;
}
.dropcap::first-letter {
  font-family: var(--font-serif); font-weight: 600; font-size: 3.05em; line-height: .82;
  float: left; padding: .06em .14em 0 0; color: var(--sea-deep);
}

/* ---------- how it works: numbered ledger ---------- */
.steps { list-style: none; margin: 0; padding: 0; }
.step {
  display: grid; grid-template-columns: 5.5rem 1fr; gap: 1rem 1.5rem; align-items: start;
  padding: 1.7rem 0; border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step-no { font-family: var(--font-mono); font-size: 1.7rem; line-height: 1.1; color: var(--gold-ink); }
.step h3 { font-size: 1.28rem; letter-spacing: -0.02em; margin-bottom: .45rem; }
.step p { color: var(--muted); font-size: .98rem; max-width: 62ch; }
.how-out { margin-top: 1.7rem; font-size: 1rem; color: var(--ink-2); display: flex; gap: .8rem; align-items: baseline; flex-wrap: wrap; }
.out-label {
  font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--sea-deep);
  border: 1px solid var(--line-strong); padding: .22rem .5rem .16rem; border-radius: var(--r-sm);
}

/* ---------- evidence (real trace, two-column exhibit) ---------- */
.evidence { background: var(--paper-2); border-block: 1px solid var(--line); }
.trace-real { max-width: 980px; }
.trace-cols { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1.6rem; padding: 1.5rem 1.4rem; }
.trace-divider { display: flex; flex-direction: column; align-items: center; gap: .7rem; }
.trace-divider::before, .trace-divider::after { content: ""; flex: 1; width: 0; border-left: 1px dashed var(--line-strong); }
.trace-divider em { writing-mode: vertical-rl; }
.trace-foot-real { padding-inline: 1.4rem; }
.evidence-foot { margin-top: 1.5rem; max-width: 70ch; color: var(--muted); font-size: .96rem; }

/* ---------- validation: typeset figures ---------- */
.val-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.val-copy p { color: var(--muted); margin-bottom: 1rem; max-width: 52ch; }
.method-note { font-size: .8rem; color: var(--faint); letter-spacing: .02em; }
.figures { display: grid; grid-template-columns: repeat(3, auto); justify-content: start; column-gap: clamp(1.6rem, 3vw, 2.6rem); }
.figure { display: flex; flex-direction: column; padding-left: clamp(1.6rem, 3vw, 2.6rem); border-left: 1px solid var(--line-strong); }
.figure:first-child { padding-left: 0; border-left: 0; }
.figure dd { order: -1; display: flex; align-items: baseline; }
.fig-num { font-family: var(--font-display); font-weight: 800; font-size: clamp(3rem, 5vw, 4.2rem); line-height: 1; letter-spacing: -0.04em; color: var(--sea-deep); }
.fig-den { font-family: var(--font-display); font-weight: 600; font-size: 1.4rem; color: var(--faint); margin-left: .15rem; }
.figure dt { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-top: .7rem; }

/* ---------- differentiators: indexed entries ---------- */
.diff-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1.8rem, 3vw, 2.8rem) clamp(2.5rem, 5vw, 4.5rem); counter-reset: diff; }
.diff-block { counter-increment: diff; position: relative; padding-top: 1.1rem; border-top: 1px solid var(--line-strong); }
.diff-block::before {
  content: "d." counter(diff, decimal-leading-zero); position: absolute; top: -.62em; left: 0;
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; color: var(--gold-ink);
  background: var(--paper); padding-right: .6rem;
}
.diff-wide { grid-column: 1 / -1; max-width: 62ch; }
.diff-block h3 { font-size: 1.28rem; letter-spacing: -0.02em; margin-bottom: .55rem; }
.diff-block p { color: var(--muted); }
.redact-demo { margin-top: 1rem; font-size: .98rem; color: var(--ink-2); }
.redact {
  font-family: var(--font-mono); font-size: .82em; color: transparent;
  background: var(--ink); border-radius: 2px; padding: .05em .4em; letter-spacing: .02em;
  cursor: help; transition: background .3s var(--ease), color .3s var(--ease);
}
.redact:hover, .redact:focus-visible { background: var(--sea-deep); color: #fff; }
.redact-hint { font-size: .66rem; color: var(--faint); margin-left: .4rem; letter-spacing: .06em; }

/* ---------- audiences: ruled register ---------- */
.aud-list { list-style: none; margin: 0; padding: 0; }
.aud-row { display: grid; grid-template-columns: minmax(230px, 1fr) 2fr; gap: .6rem 2.5rem; padding: 1.45rem 0; border-top: 1px solid var(--line); align-items: baseline; }
.aud-row:last-child { border-bottom: 1px solid var(--line); }
.aud-row h3 { font-size: 1.16rem; letter-spacing: -0.02em; color: var(--ink); }
.aud-row p { color: var(--muted); }

/* ---------- scope: note to the reader ---------- */
.scope-note {
  max-width: 820px; background: var(--card); border: 1px solid var(--line);
  border-left: 3px solid var(--gold); border-radius: var(--r-sm);
  padding: clamp(1.6rem, 3vw, 2.4rem); box-shadow: var(--shadow-sheet);
}
.scope-note .lede { font-size: clamp(1.12rem, 2vw, 1.3rem); }

/* ---------- builder ---------- */
.builder-copy { font-size: 1.12rem; color: var(--ink-2); max-width: 62ch; line-height: 1.65; }
.builder-links { margin-top: 1.1rem; font-family: var(--font-mono); font-size: .88rem; }
.builder-links .dot { color: var(--faint); margin: 0 .4rem; }

/* ---------- faq: appendix ---------- */
.faq { background: var(--paper-2); border-block: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-list .faq-item:first-child { border-top: 1px solid var(--line); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 1.15rem 2rem 1.15rem 0; position: relative;
  font-family: var(--font-display); font-weight: 600; font-size: 1.06rem; color: var(--ink); letter-spacing: -0.01em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-no { font-size: .7rem; letter-spacing: .1em; color: var(--gold-ink); margin-right: .9rem; font-weight: 500; }
.faq-item summary::after {
  content: ""; position: absolute; right: .25rem; top: 50%; width: 10px; height: 10px;
  border-right: 1.5px solid var(--sea-deep); border-bottom: 1.5px solid var(--sea-deep);
  transform: translateY(-65%) rotate(45deg); transition: transform .3s var(--ease);
}
.faq-item[open] summary::after { transform: translateY(-35%) rotate(225deg); }
.faq-item p { color: var(--muted); padding: 0 0 1.25rem 2.6rem; max-width: 64ch; }

/* ---------- request / intake form ---------- */
.request-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 5vw, 4.5rem); align-items: start; }
.request-title { font-size: clamp(1.8rem, 3.6vw, 2.6rem); letter-spacing: -0.03em; max-width: 17ch; }
.request-sub { margin-top: 1rem; font-size: 1.12rem; color: var(--muted); max-width: 42ch; }
.get-list { list-style: none; margin: 1.6rem 0 0; padding: 0; display: grid; gap: .7rem; }
.get-list li { position: relative; padding-left: 1.6rem; color: var(--ink-2); font-size: .98rem; }
.get-list li::before { content: ""; position: absolute; left: 0; top: .56em; width: 8px; height: 8px; background: var(--sea); }
.see-report { margin-top: 1.5rem; font-size: .94rem; color: var(--muted); max-width: 46ch; }

.request-form-wrap {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-md);
  box-shadow: var(--shadow-lift); overflow: hidden;
}
.form-head {
  font-size: .64rem; letter-spacing: .18em; text-transform: uppercase; color: var(--faint);
  padding: .8rem 1.6rem .7rem; border-bottom: 1px dashed var(--line-strong); margin: 0;
}
.request-form { padding: clamp(1.4rem, 3vw, 2rem) 1.6rem 1.6rem; }
.field { margin-bottom: 1.4rem; }
.field label {
  display: block; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; margin-bottom: .4rem; color: var(--ink-2);
}
.field .opt { text-transform: none; letter-spacing: .04em; color: var(--faint); }
.field input[type=email], .field input[type=text], .select-wrap select {
  width: 100%; font-family: var(--font-body); font-size: 1rem; color: var(--ink);
  padding: .55rem .1rem; border: 0; border-bottom: 1.5px solid var(--line-strong);
  border-radius: 0; background: transparent;
  transition: border-color .2s var(--ease);
}
.field input:focus, .select-wrap select:focus { outline: none; border-bottom-color: var(--sea-deep); }
.field input::placeholder { color: var(--faint); }
.select-wrap { position: relative; }
.select-wrap select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.select-wrap::after {
  content: ""; position: absolute; right: .4rem; top: 50%; width: 8px; height: 8px;
  border-right: 1.5px solid var(--muted); border-bottom: 1.5px solid var(--muted);
  transform: translateY(-70%) rotate(45deg); pointer-events: none;
}
.check { display: flex; align-items: center; gap: .6rem; font-size: .94rem; color: var(--ink-2); margin: .2rem 0 1.5rem; cursor: pointer; }
.check input { width: 17px; height: 17px; accent-color: var(--sea-deep); flex: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-consent { margin-top: 1rem; font-size: .8rem; color: var(--muted); line-height: 1.5; }
.form-status { margin-top: 1rem; font-size: .94rem; font-weight: 500; min-height: 1.2em; }
.form-status.ok { color: var(--sea-deep); }
.form-status.err { color: var(--ink-2); font-weight: 600; }
.request-form.done .field, .request-form.done .check, .request-form.done button, .request-form.done .form-consent { display: none; }

/* ---------- footer: colophon ---------- */
.site-footer { border-top: 3px double var(--line-strong); background: var(--paper); padding-block: 2.5rem 1.6rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; padding-bottom: 1.6rem; border-bottom: 1px solid var(--line); }
.footer-brand .brand-name { font-size: 1.15rem; }
.footer-brand p { color: var(--muted); font-size: .92rem; margin-top: .4rem; max-width: 40ch; }
.footer-links { display: flex; gap: 1.3rem; flex-wrap: wrap; align-items: center; }
.footer-links a { color: var(--muted); font-size: .92rem; font-weight: 500; }
.footer-links a:hover { color: var(--sea-deep); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.3rem; }
.footer-bottom p { color: var(--faint); font-size: .84rem; }
.dev-link { font-size: .76rem; color: var(--faint); letter-spacing: .03em; }
.dev-link:hover { color: var(--sea-deep); }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.steps .step:nth-child(2) { transition-delay: .07s; }
.steps .step:nth-child(3) { transition-delay: .14s; }
.steps .step:nth-child(4) { transition-delay: .21s; }
.ledger-item:nth-child(2) { transition-delay: .07s; }
.ledger-item:nth-child(3) { transition-delay: .14s; }
.ledger-item:nth-child(4) { transition-delay: .21s; }
.diff-block:nth-child(2) { transition-delay: .06s; }
.diff-block:nth-child(3) { transition-delay: .12s; }
.diff-block:nth-child(4) { transition-delay: .18s; }
.diff-block:nth-child(5) { transition-delay: .24s; }
.aud-row:nth-child(2){transition-delay:.05s}.aud-row:nth-child(3){transition-delay:.1s}.aud-row:nth-child(4){transition-delay:.15s}.aud-row:nth-child(5){transition-delay:.2s}
.faq-item:nth-child(2){transition-delay:.04s}.faq-item:nth-child(3){transition-delay:.08s}.faq-item:nth-child(4){transition-delay:.12s}.faq-item:nth-child(5){transition-delay:.16s}.faq-item:nth-child(6){transition-delay:.2s}.faq-item:nth-child(7){transition-delay:.24s}

/* ---------- responsive ---------- */
@media (max-width: 920px) {
  .file-meta-mid { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-exhibit { order: 2; max-width: 560px; }
  .hero-sub, .hero-confidential { max-width: 58ch; }
  .val-grid { grid-template-columns: 1fr; }
  .request-grid { grid-template-columns: 1fr; }
  .diff-list { grid-template-columns: 1fr; }
  .diff-wide { max-width: none; }
  .ledger-grid { grid-template-columns: 1fr 1fr; }
  .ledger-item { padding: 1.4rem 1.2rem; border-left: 0; border-top: 1px solid var(--line); }
  .ledger-item:nth-child(-n+2) { border-top: 0; }
  .ledger-item:nth-child(even) { border-left: 1px solid var(--line); }
  .ledger-item:nth-child(odd) { padding-left: 0; }
  .trace-cols { grid-template-columns: 1fr; gap: 1rem; }
  .trace-divider { flex-direction: row; }
  .trace-divider::before, .trace-divider::after { border-left: 0; border-top: 1px dashed var(--line-strong); }
  .trace-divider em { writing-mode: horizontal-tb; }
  .site-nav { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .file-meta { justify-content: center; }
  .file-meta span:last-child { display: none; }
  .ledger-grid { grid-template-columns: 1fr; }
  .ledger-item, .ledger-item:nth-child(-n+2) { border-top: 1px solid var(--line); border-left: 0; padding-left: 0; }
  .ledger-item:first-child { border-top: 0; }
  .step { grid-template-columns: 3.2rem 1fr; }
  .step-no { font-size: 1.25rem; }
  .aud-row { grid-template-columns: 1fr; gap: .3rem; }
  .header-cta { display: none; }
  .hero-cta-row { gap: 1rem; }
  .figures { grid-template-columns: 1fr; row-gap: 1.4rem; }
  .figure, .figure:first-child { padding-left: 0; border-left: 0; }
  .faq-item p { padding-left: 0; }
  .footer-inner { flex-direction: column; gap: 1.2rem; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}