/* =============================================================================
   PerpetualBooks design system v2 -- "THE LEDGER FIELD MANUAL"
   A deliberately un-template look: ruled ledger paper, ink-green + stamp red,
   monospace specimen labels, hard offset shadows, 2px rules, numbered sections,
   rubber-stamp badges, dotted leader lines. Reads like an institutional field
   manual for keeping software alive -- not a SaaS landing page.
   Fonts: Space Grotesk (display) / IBM Plex Serif (prose) / IBM Plex Mono (data).
   ============================================================================= */

:root {
  /* Palette drawn from the PerpetualBooks v2 logo: gold-flecked handmade cream
     stock, forest-green wordmark, bronze/copper clockwork, ruby studs, deep
     green-marble surround. */
  --paper:    #f5f2e7;   /* gold-flecked cream stock      */
  --paper-2:  #ece7d7;   /* deeper panel                  */
  --card:     #faf8f0;   /* index card                    */
  --ink:      #1a201b;   /* warm green-black              */
  --ink-2:    #4c564e;
  --ink-3:    #79837a;
  --rule:     #1a201b;   /* hard 2px rules use INK        */
  --line:     #cfc9b4;   /* faint ledger ruling           */

  /* Accents */
  --green:    #266b4e;   /* forest green (primary -- the wordmark green)  */
  --green-d:  #1d5540; --green-dk: #0f231a;   /* green-marble band        */
  --green-t:  #dcebe2;
  --red:      #8a5230;   /* bronze/copper (decorative stamps/labels; legacy var name) */
  --red-t:    #f0e2d4;
  --crimson:  #a51e35;   /* ruby -- semantic only: warnings, "Ended" pills */
  --crimson-t:#f6dde2;
  --gold:     #c9a227;   /* gilt edge / gold fleck        */
  --gold-t:   #f0e8cd;
  --linkc:    #266b4e;

  --display: 'Space Grotesk', 'Arial Black', sans-serif;
  --serif: 'IBM Plex Serif', Georgia, serif;
  --mono:  'IBM Plex Mono', ui-monospace, Consolas, monospace;

  --wrap: 1180px;
  --r: 2px;                                   /* nearly square corners */
  --hs:  6px 6px 0 rgba(26, 32, 27, .16);     /* hard offset shadow    */
  --hs-s: 3px 3px 0 rgba(26, 32, 27, .16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

/* Ledger ruling: faint horizontal rules across the whole page + red margin line */
body {
  margin: 0;
  font-family: var(--serif);
  color: var(--ink);
  background:
    repeating-linear-gradient(to bottom, transparent 0 30px, rgba(26,32,27,.035) 30px 31px),
    var(--paper);
  line-height: 1.68;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--linkc); text-decoration-thickness: 1.5px; text-underline-offset: 2.5px; }

.container { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
.center { text-align: center; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 200; }

/* --- Type --- */
h1, h2, h3, h4 { font-family: var(--display); color: var(--ink); line-height: 1.05; font-weight: 700; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.3rem, 5.2vw, 3.9rem); text-transform: uppercase; letter-spacing: -.01em; }
h2 { font-size: clamp(1.55rem, 3vw, 2.4rem); }
h3 { font-size: 1.22rem; }
p { margin: 0 0 1rem; }
em { font-style: normal; background: linear-gradient(transparent 62%, var(--gold-t) 62%); padding: 0 .1em; }

/* Mono specimen label -- the site's signature */
.kicker {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--mono); font-weight: 600;
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--green); margin-bottom: .8rem;
}
.kicker::before { content: '▚'; color: var(--red); font-size: .8em; }
.kicker.alive { color: var(--green); }
.lede { font-size: 1.18rem; line-height: 1.65; color: var(--ink-2); max-width: 58ch; }

/* --- Buttons: mono, squared, hard shadow --- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem; justify-content: center;
  font-family: var(--mono); font-weight: 600; font-size: .82rem; line-height: 1;
  letter-spacing: .06em; text-transform: uppercase;
  padding: .85rem 1.3rem; border-radius: var(--r);
  border: 2px solid var(--ink); cursor: pointer; text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease;
  box-shadow: var(--hs-s);
}
.btn svg { width: 1.1em; height: 1.1em; }
.btn:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 rgba(26,32,27,.2); }
.btn:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 rgba(26,32,27,.2); }
.btn-lg { padding: 1rem 1.6rem; font-size: .88rem; }
.btn-primary { background: var(--green); color: #f2efe2; border-color: var(--ink); }
.btn-ghost { background: var(--card); color: var(--ink); }
.btn-light { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn-alive { background: var(--green); color: #f2efe2; }

/* --- Consent bar: archive routing slip --- */
.consent { background: var(--ink); color: #e7e3d2; font-size: .8rem; border-bottom: 3px double var(--gold); font-family: var(--mono); }
.consent .container { display: flex; align-items: center; gap: 1rem; padding-block: .55rem; }
.consent .c-txt { flex: 1; opacity: .9; letter-spacing: .01em; }
.consent .c-txt strong { color: #fff; }
.consent .c-agree { background: var(--red); color: #fff; border: 1px solid #fff3; padding: .45rem 1rem; font-family: var(--mono); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; border-radius: var(--r); }
.consent .c-agree:hover { filter: brightness(1.12); }

/* --- Header: flat paper, heavy double rule --- */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--paper); border-bottom: 3px double var(--ink); }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; height: 72px; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--ink); }
.brand .mark { width: 34px; height: 34px; flex: none; }
.brand span { font-family: var(--display); font-size: 1.32rem; font-weight: 700; line-height: 1; letter-spacing: -.02em; white-space: nowrap; }
.brand span b { color: var(--green); font-weight: 700; }
.nav { display: flex; align-items: center; gap: .1rem; }
.navlink { font-family: var(--mono); font-size: .78rem; font-weight: 500; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-2); text-decoration: none; padding: .55rem .6rem; border-radius: var(--r); border-bottom: 2px solid transparent; }
.navlink:hover { color: var(--ink); background: var(--paper-2); }
.navlink.active { color: var(--green); border-bottom-color: var(--red); }
.nav .btn { margin-left: .5rem; box-shadow: none; }
.menu-toggle { display: none; background: none; border: 2px solid var(--ink); border-radius: var(--r); color: var(--ink); cursor: pointer; padding: 5px; }
.menu-toggle svg { width: 24px; height: 24px; display: block; }
.mobile-nav { display: none; background: var(--paper); border-bottom: 2px solid var(--ink); }
.mobile-nav.open { display: block; }
.mobile-nav .container { display: flex; flex-direction: column; padding-block: .6rem 1rem; }
.mobile-nav a { padding: .75rem .2rem; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; }

/* --- Sections --- */
.section { padding-block: clamp(3.2rem, 6vw, 5.6rem); position: relative; }
.section.tight { padding-block: clamp(2rem, 4vw, 3.2rem); }
.bg-soft { background: var(--paper-2); border-block: 2px solid var(--ink); }
.bg-ink { background: var(--green-dk); color: #d9e4d9; }
.bg-ink h1, .bg-ink h2, .bg-ink h3 { color: #f2efe2; }
.bg-ink .lede { color: #b3c6b6; }
.bg-ink .kicker { color: var(--gold); }
.sec-head { max-width: 64ch; margin-bottom: 2.6rem; }
.sec-head.center { margin-inline: auto; }
.sec-head p { color: var(--ink-2); font-size: 1.06rem; margin: 0; }
.bg-ink .sec-head p { color: #b3c6b6; }

/* Homepage: numbered sections, like a manual's articles */
.home { counter-reset: sec; }
.home .section .sec-head h2::before {
  counter-increment: sec;
  content: 'No. 0' counter(sec);
  display: block;
  font-family: var(--mono); font-weight: 600; font-size: .72rem;
  letter-spacing: .2em; color: var(--red); margin-bottom: .55rem;
}

/* --- Hero: manual cover --- */
.hero {
  position: relative; overflow: hidden;
  padding-block: clamp(3.4rem, 7vw, 6.2rem);
  border-bottom: 2px solid var(--ink);
  background:
    repeating-linear-gradient(to bottom, transparent 0 30px, rgba(26,32,27,.05) 30px 31px),
    linear-gradient(0deg, var(--paper-2), var(--paper));
}
/* red ledger margin line down the page edge */
.hero::before {
  content: ''; position: absolute; top: 0; bottom: 0; left: clamp(10px, 3vw, 46px);
  width: 2px; background: rgba(176, 138, 30, .55);
}
.hero-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 3.4rem; align-items: center; }
.hero h1 { margin-bottom: .9rem; }
.hero .lede { margin-bottom: 1.2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.7rem; }
.hero-note { display: flex; flex-wrap: wrap; gap: 1.3rem; margin-top: 1.7rem; font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2); }
.hero-note span { display: inline-flex; align-items: center; gap: .45rem; }
.hero-note svg { width: 1.2em; height: 1.2em; color: var(--green); }
.microcopy { font-size: .74rem; line-height: 1.6; color: var(--ink-3); max-width: 56ch; margin: 1rem 0 0; font-family: var(--serif); font-style: italic; }

/* Splash: the brand plaque as hero art -- framed like a mounted exhibit */
.splash { margin: 0; position: relative; transform: rotate(.6deg); }
.splash img {
  display: block; width: 100%; height: auto;
  border: 2px solid var(--ink); border-radius: var(--r);
  box-shadow: var(--hs);
}
.splash figcaption {
  margin-top: .6rem; text-align: center;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-3);
}

/* Fact card: a filing card, slightly rotated, with stamp */
.fact-card {
  background: var(--card);
  border: 2px solid var(--ink); border-radius: var(--r);
  box-shadow: var(--hs);
  padding: 1.5rem 1.5rem 1.6rem;
  transform: rotate(.6deg);
  position: relative;
}
.fact-card::after { /* punched filing hole */
  content: ''; position: absolute; top: 14px; right: 16px; width: 13px; height: 13px;
  border-radius: 50%; background: var(--paper-2); border: 2px solid var(--ink);
}
.fc-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.1rem; padding-right: 2rem; }
.fact-badge {
  display: inline-block; font-family: var(--mono); font-size: .68rem; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase; color: var(--red);
  border: 2px solid var(--red); border-radius: var(--r); padding: .3rem .6rem;
  transform: rotate(-2deg);
}
.fact-badge i { display: none; }
.fc-top > span:last-child { font-family: var(--mono); font-size: .72rem; color: var(--ink-3); text-transform: uppercase; letter-spacing: .08em; }
.fc-row { display: flex; align-items: baseline; gap: .7rem; padding: .68rem 0; border-top: 1px dashed var(--ink-3); }
.fc-row .yr { font-family: var(--display); font-weight: 700; font-size: 1.2rem; min-width: 3.4rem; }
.fc-row .lbl { flex: 1; font-size: .88rem; color: var(--ink-2); position: relative; overflow: hidden; }
/* dotted leader line, like a ToC */
.fc-row .lbl::after { content: ' ....................................................'; color: var(--ink-3); letter-spacing: 2px; }
.fc-row .pill, .pill { font-family: var(--mono); font-size: .68rem; font-weight: 700; letter-spacing: .05em; padding: .22rem .5rem; border-radius: var(--r); border: 1.5px solid currentColor; white-space: nowrap; }
.pill.dead { color: var(--crimson); background: var(--crimson-t); }
.pill.soon { color: #8a6d0d; background: var(--gold-t); }
.pill.live { color: var(--green); background: var(--green-t); }

/* --- Trust strip: specification row --- */
.trust { background: var(--ink); color: #cfd8cd; border-bottom: 3px double var(--gold); }
.trust .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; padding-block: 1.5rem; }
.trust .stat { text-align: center; padding-inline: 1rem; border-left: 1px dashed #ffffff2e; }
.trust .stat:first-child { border-left: 0; }
.trust .stat b { display: block; font-family: var(--display); font-size: 1.45rem; color: #f2efe2; font-weight: 700; }
.trust .stat span { font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: #93a894; }

/* --- Cards: index cards, hard shadows, corner fold --- */
.grid { display: grid; gap: 1.4rem; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  display: block; background: var(--card);
  border: 2px solid var(--ink); border-radius: var(--r);
  padding: 1.5rem 1.4rem 1.35rem; text-decoration: none; color: var(--ink);
  box-shadow: var(--hs-s);
  transition: transform .13s ease, box-shadow .13s ease;
  position: relative;
}
.card::before { /* clipped corner, like a cut file tab */
  content: ''; position: absolute; top: -2px; right: -2px;
  border-style: solid; border-width: 0 18px 18px 0;
  border-color: transparent var(--paper) transparent transparent;
  filter: drop-shadow(-1.5px 1.5px 0 var(--ink));
}
.card:hover { transform: translate(-3px, -3px); box-shadow: 7px 7px 0 rgba(26,32,27,.18); }
.card .ic { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: var(--r); background: var(--green-t); border: 1.5px solid var(--green); color: var(--green); margin-bottom: 1rem; }
.card .ic svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: .4rem; }
.card p { color: var(--ink-2); font-size: .93rem; margin: 0; }
.card .more { display: inline-flex; align-items: center; gap: .4rem; margin-top: 1rem; font-family: var(--mono); font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--red); }
.card .more svg { width: 1.15em; height: 1.15em; transition: transform .13s; }
.card:hover .more svg { transform: translateX(4px); }
.card .code-tag { font-family: var(--mono); font-size: 1.2rem; font-weight: 700; color: var(--ink); background: var(--gold-t); padding: .1rem .45rem; border: 1.5px solid var(--ink); border-radius: var(--r); display: inline-block; }
.card .kicker { margin-bottom: .5rem; }

/* --- Steps: procedure entries --- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; counter-reset: step; }
.step { position: relative; background: var(--card); border: 2px solid var(--ink); border-radius: var(--r); padding: 2rem 1.3rem 1.3rem; box-shadow: var(--hs-s); }
.step::before {
  counter-increment: step; content: 'STEP ' counter(step, decimal-leading-zero);
  position: absolute; top: -14px; left: 1rem;
  font-family: var(--mono); font-weight: 700; font-size: .68rem; letter-spacing: .14em;
  background: var(--ink); color: var(--paper); padding: .3rem .6rem; border-radius: var(--r);
}
.step h3 { font-size: 1.06rem; margin-bottom: .3rem; }
.step p { color: var(--ink-2); font-size: .9rem; margin: 0; }

/* --- Band --- */
.band { display: grid; grid-template-columns: auto 1fr auto; gap: 1.8rem; align-items: center; background: var(--green-dk); color: #d9e4d9; border: 2px solid var(--ink); border-radius: var(--r); box-shadow: var(--hs); padding: clamp(1.6rem, 4vw, 2.6rem); }
.band .seal { width: 84px; height: 84px; flex: none; }
.band h2 { color: #f2efe2; margin: .2rem 0; font-size: clamp(1.4rem, 2.6vw, 2rem); }
.band p { color: #b3c6b6; margin: 0; max-width: 60ch; }

/* --- FAQ: dossier entries --- */
.faq { max-width: 800px; margin-inline: auto; border: 2px solid var(--ink); border-radius: var(--r); background: var(--card); box-shadow: var(--hs-s); }
.faq details { border-bottom: 1px dashed var(--ink-3); padding: 0 1.2rem; }
.faq details:last-child { border-bottom: 0; }
.faq summary { cursor: pointer; font-family: var(--display); font-weight: 600; font-size: 1.08rem; padding: 1.05rem 2.2rem 1.05rem .2rem; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: .2rem; top: .85rem; font-size: 1.5rem; color: var(--red); font-family: var(--mono); transition: transform .16s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--ink-2); padding: 0 .2rem 1.1rem; margin: 0; }

.cta-row { display: flex; gap: .9rem; justify-content: center; flex-wrap: wrap; margin-top: 2rem; }

/* =============================================================================
   PROSE
   ============================================================================= */
.prose { font-size: 1.06rem; line-height: 1.78; color: #232f27; }
.prose > h2 { margin-top: 2.6rem; padding-top: 1.3rem; border-top: 2px solid var(--ink); font-size: 1.6rem; }
.prose > h3 { margin-top: 1.9rem; font-size: 1.24rem; }
.prose p { margin: 0 0 1.15rem; }
.prose a { color: var(--linkc); font-weight: 600; }
.prose ul, .prose ol { margin: 0 0 1.2rem; padding-left: 1.35rem; }
.prose li { margin-bottom: .5rem; }
.prose li::marker { color: var(--red); font-family: var(--mono); font-weight: 600; }
.prose strong { color: var(--ink); }
.prose blockquote { margin: 1.7rem 0; padding: 1rem 1.3rem; border: 2px solid var(--ink); border-left-width: 8px; background: var(--card); font-size: 1.1rem; font-style: italic; }
.prose code { font-family: var(--mono); font-size: .88em; background: var(--gold-t); border: 1px solid #d8c98f; border-radius: var(--r); padding: .08em .38em; color: var(--ink); }
.prose pre { background: var(--ink); color: #e3e0cf; padding: 1.1rem 1.2rem; border-radius: var(--r); border: 2px solid var(--ink); box-shadow: var(--hs-s); overflow-x: auto; font-size: .88rem; margin: 0 0 1.3rem; }
.prose pre code { background: none; border: 0; color: inherit; padding: 0; }
.prose img { border: 2px solid var(--ink); border-radius: var(--r); box-shadow: var(--hs-s); margin: 1.3rem 0; }
.prose hr { border: 0; border-top: 3px double var(--ink); margin: 2.2rem 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: .95rem; border: 2px solid var(--ink); box-shadow: var(--hs-s); background: var(--card); }
.prose th, .prose td { text-align: left; padding: .65rem .8rem; border-bottom: 1px dashed var(--ink-3); }
.prose th { font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--paper); background: var(--ink); border-bottom: 2px solid var(--ink); }
.prose tr:last-child td { border-bottom: 0; }
.prose tr:hover td { background: var(--paper-2); }

/* Callouts: margin-note slips */
.callout { display: flex; gap: .9rem; padding: 1.1rem 1.2rem; border: 2px solid var(--ink); border-radius: var(--r); margin: 1.6rem 0; font-size: .97rem; box-shadow: var(--hs-s); position: relative; }
.callout p:last-child { margin-bottom: 0; }
.callout .ci { flex: none; width: 22px; height: 22px; margin-top: .1rem; }
.callout.note { background: var(--gold-t); }
.callout.good { background: var(--green-t); }
.callout.warn { background: var(--crimson-t); }
.callout.note .ci { color: #8a6d0d; } .callout.good .ci { color: var(--green); } .callout.warn .ci { color: var(--crimson); }
.callout .ci svg { width: 22px; height: 22px; }
.callout b { display: block; margin-bottom: .15rem; font-family: var(--display); }

/* --- Article furniture --- */
.breadcrumb { font-family: var(--mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.1rem; display: block; }
.breadcrumb a { color: var(--ink-2); text-decoration: none; }
.breadcrumb a:hover { color: var(--red); }
.article-meta { display: flex; flex-wrap: wrap; gap: 1.1rem; align-items: center; color: var(--ink-2); font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; text-transform: uppercase; margin: 0 0 2rem; padding-bottom: 1.3rem; border-bottom: 2px solid var(--ink); }
.verified { display: inline-flex; align-items: center; gap: .45rem; font-weight: 700; color: var(--green); border: 2px solid var(--green); border-radius: var(--r); padding: .3rem .6rem; transform: rotate(-1.2deg); }
.verified svg { width: 1.1em; height: 1.1em; }

.toc { background: var(--card); border: 2px solid var(--ink); border-radius: var(--r); box-shadow: var(--hs-s); padding: 1.1rem 1.3rem; margin: 0 0 2.2rem; }
.toc b { font-family: var(--mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--red); }
.toc ol { margin: .6rem 0 0; padding-left: 1.2rem; }
.toc li::marker { font-family: var(--mono); font-size: .8rem; color: var(--ink-3); }
.toc a { color: var(--ink-2); text-decoration: none; font-size: .95rem; }
.toc a:hover { color: var(--green); text-decoration: underline; }

.sources { margin: 2.6rem 0 0; padding: 1.3rem 1.4rem; background: var(--paper-2); border: 2px solid var(--ink); border-radius: var(--r); }
.sources h4 { font-family: var(--mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--red); margin: 0 0 .7rem; }
.sources ol { margin: 0; padding-left: 1.2rem; }
.sources li { font-size: .89rem; margin-bottom: .4rem; color: var(--ink-2); }

/* =============================================================================
   Data graphics
   ============================================================================= */
/* Sunset timeline: ledger register rows */
.timeline { margin: 1.8rem 0; border: 2px solid var(--ink); border-radius: var(--r); overflow: hidden; background: var(--card); box-shadow: var(--hs-s); }
.timeline .tl-row { display: grid; grid-template-columns: 5.2rem 1fr auto; align-items: center; gap: 1rem; padding: .8rem 1.1rem; border-top: 1px dashed var(--ink-3); }
.timeline .tl-row:first-child { border-top: 0; }
.timeline .tl-row:nth-child(even) { background: var(--paper-2); }
.timeline .tl-ver { font-family: var(--display); font-weight: 700; font-size: 1.2rem; }
.timeline .tl-bar { height: 10px; border-radius: var(--r); border: 1.5px solid var(--ink); background: repeating-linear-gradient(45deg, var(--green) 0 8px, var(--green-t) 8px 16px); opacity: .9; }
.timeline .tl-date { font-family: var(--mono); font-size: .8rem; color: var(--ink-2); white-space: nowrap; display: inline-flex; gap: .5rem; align-items: center; }
.timeline .tl-date b { color: var(--ink); }

/* Version matrix */
.matrix { overflow-x: auto; margin: 1.8rem 0; }
.matrix table { border-collapse: collapse; width: 100%; font-size: .9rem; border: 2px solid var(--ink); background: var(--card); box-shadow: var(--hs-s); }
.matrix th, .matrix td { padding: .6rem .7rem; border: 1px dashed var(--ink-3); text-align: center; }
.matrix th { background: var(--ink); color: var(--paper); font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--ink); }
.matrix td.yes { color: var(--green); font-weight: 700; font-family: var(--mono); }
.matrix td.no { color: var(--red); font-weight: 700; font-family: var(--mono); }
.matrix .rowhead { text-align: left; font-weight: 600; background: var(--paper-2); }

/* --- Footer: colophon --- */
.site-footer { background: var(--ink); color: #a9b6a9; padding-block: 3.2rem 2rem; font-size: .92rem; border-top: 3px double var(--gold); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; padding-bottom: 2.2rem; border-bottom: 1px dashed #ffffff2e; }
.site-footer .brand span { color: #f2efe2; }
.site-footer .brand span b { color: var(--gold); }
.site-footer .blurb { margin: .9rem 0 1rem; max-width: 40ch; color: #8fa08f; font-size: .9rem; }
.site-footer h4 { color: var(--gold); font-family: var(--mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; margin: 0 0 .9rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: .55rem; }
.site-footer a { color: #a9b6a9; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.network-row { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; padding: 1.4rem 0; border-bottom: 1px dashed #ffffff2e; font-family: var(--mono); font-size: .74rem; letter-spacing: .03em; }
.network-row span { color: #6d7d6d; text-transform: uppercase; letter-spacing: .1em; }
.footer-base { padding-top: 1.4rem; font-size: .76rem; color: #6d7d6d; line-height: 1.65; }
.footer-base a { color: #b9c4b4; }

/* --- Reveal --- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.4rem; }
  .fact-card { transform: none; }
  .cols-3, .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 1.6rem; }
  .trust .container { grid-template-columns: repeat(2, 1fr); gap: 1.2rem 0; }
  .trust .stat:nth-child(3) { border-left: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .band { grid-template-columns: 1fr; text-align: center; justify-items: center; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav { display: none; }
  .menu-toggle { display: block; }
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .timeline .tl-row { grid-template-columns: 4rem 1fr; }
  .timeline .tl-date { grid-column: 2; }
  .hero::before { display: none; }
  .fc-row .lbl::after { content: ''; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .btn, .card { transition: none; }
}