/* ABOUTME: Stylesheet for the Kansa "Sovereign" landing variant — editorial regulatory dossier. */
/* ABOUTME: Ink-on-paper hairline grid, single orange accent, asymmetric editorial layout. */

/* ============ TOKENS ============ */
:root {
  --paper:      #fafaf9;
  --paper-alt:  #f4f3f1;
  --surface:    #ffffff;
  --ink:        #14161b;
  --ink-2:      #585b64;
  --ink-3:      #62656c;
  --line:       #ddd9d3;
  --line-soft:  #e7e3dd;

  --accent:     #ff6500;            /* fills, marks, rules, borders, CTA */
  --accent-display: #eb5a00;        /* large/bold orange text — clears 3:1 on paper */
  --accent-600: #e85b00;
  --accent-ink: #b34700;            /* small orange text/labels — clears 4.5:1 on paper */
  --accent-soft:#fff1e8;

  --ink-dark:   #0f1217;
  --ink-dark-2: #161a21;
  --ink-dark-3: #20252f;
  --line-dark:  #2c323d;
  --paper-on-dark: #e9e7e2;
  --ink2-on-dark:  #a9adb6;

  --ok:   #10b981;
  --warn: #e5a000;
  --err:  #f31700;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;

  --maxw: 1200px;
  --gutter: clamp(20px, 5vw, 64px);

  --ff-display: "Archivo", system-ui, sans-serif;
  --ff-body: "Source Sans 3", system-ui, sans-serif;
  --ff-mono: "IBM Plex Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ============ RESET / BASE ============ */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { margin: 0; color: var(--ink); font-family: var(--ff-display); font-weight: 700; line-height: 1.05; letter-spacing: -0.02em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
strong { color: var(--ink); font-weight: 600; }

.shell { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

/* ============ ACCESSIBILITY ============ */
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 200;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: var(--r-sm);
  font-family: var(--ff-mono); font-size: 13px; transition: top .2s var(--ease);
}
.skip-link:focus { top: 16px; }

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

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--ff-display); font-weight: 600; font-size: 16px;
  letter-spacing: 0.01em;
  padding: 14px 26px; border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer; transition: transform .25s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  min-height: 48px; white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: 14px; min-height: 40px; }

.btn-primary { background: var(--accent); color: var(--ink); }
.btn-primary:hover { background: var(--accent-600); color: var(--ink); transform: translateY(-2px); }

.btn-ghost {
  background: transparent; color: var(--ink); border-color: var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }

/* ============ HEADER / NAV ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 1px 0 var(--line), 0 12px 28px -22px rgba(20,22,27,0.4); }
.header-inner {
  display: flex; align-items: center; gap: 28px;
  height: 72px;
}
.wordmark {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-display); font-weight: 800; font-size: 21px;
  letter-spacing: 0.14em; color: var(--ink);
}
.wordmark-seal {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  flex: none;
}
.primary-nav { margin-left: 8px; }
.primary-nav ul { display: flex; gap: 28px; }
.primary-nav a {
  font-size: 15px; font-weight: 500; color: var(--ink-2);
  position: relative; padding: 4px 0; transition: color .2s var(--ease);
}
.primary-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 1.5px;
  background: var(--accent); transition: width .25s var(--ease);
}
.primary-nav a:hover { color: var(--ink); }
.primary-nav a:hover::after { width: 100%; }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 20px; }
.link-login { font-size: 15px; font-weight: 500; color: var(--ink); transition: color .2s var(--ease); }
.link-login:hover { color: var(--accent-ink); }

.nav-toggle {
  display: none; margin-left: auto;
  width: 44px; height: 44px; border: 1px solid var(--line); border-radius: var(--r-sm);
  background: var(--surface); cursor: pointer; padding: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle-bar { display: block; width: 20px; height: 2px; background: var(--ink); transition: transform .3s var(--ease), opacity .2s var(--ease); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  overflow: hidden;
}
.mobile-nav[hidden] { display: none; }
.mobile-nav nav { display: flex; flex-direction: column; padding: 12px var(--gutter) 24px; gap: 2px; }
.mobile-nav a {
  font-family: var(--ff-display); font-weight: 600; font-size: 18px; color: var(--ink);
  padding: 13px 0; border-bottom: 1px solid var(--line-soft);
}
.mobile-nav a:last-of-type { border-bottom: none; }
.mobile-nav .btn { margin-top: 14px; width: 100%; }

/* ============ EYEBROW ============ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-mono); font-size: 12.5px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-2); margin: 0 0 20px;
}
.eyebrow-mark { width: 22px; height: 2px; background: var(--accent); flex: none; }
.eyebrow--light { color: var(--ink2-on-dark); }

/* ============ SECTION SCAFFOLD ============ */
.section { padding-block: clamp(72px, 9vw, 128px); }
.section--alt { background: var(--paper-alt); border-block: 1px solid var(--line); }
.section--ink { background: var(--ink-dark); color: var(--paper-on-dark); }

.section-head { max-width: 760px; margin-bottom: clamp(48px, 6vw, 80px); }
.section-title { font-size: clamp(30px, 4.4vw, 50px); }
.section-sub { font-size: clamp(17px, 1.7vw, 19px); color: var(--ink-2); margin-top: 22px; max-width: 56ch; }
.section--ink .section-sub { color: var(--ink2-on-dark); }

/* split head: heading left, sub right — editorial asymmetry */
.section-head--split {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 72px);
  align-items: end; max-width: none;
}
.section-head--split .section-sub { margin-top: 0; padding-top: 8px; border-top: 1px solid var(--line); }
.section--ink .section-head--split .section-sub { border-top-color: var(--line-dark); }

/* ============ HERO ============ */
.hero {
  min-height: calc(100dvh - 72px);
  display: flex; align-items: center;
  padding-block: clamp(40px, 6vh, 72px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(transparent calc(100% - 1px), var(--line-soft) 0) 0 0 / 100% 64px,
    var(--paper);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, var(--line-soft) 1px, transparent 0) 0 0 / 64px 100%;
  opacity: .5; pointer-events: none;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, transparent 55%);
          mask-image: linear-gradient(90deg, #000 0%, transparent 55%);
}
.hero-grid {
  position: relative;
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(40px, 5vw, 72px); align-items: center; width: 100%;
}
.hero-copy { max-width: 660px; }
.hero-title {
  font-size: clamp(38px, 4.4vw, 54px);
  font-weight: 800; line-height: 1.04; letter-spacing: -0.03em;
  margin-bottom: 26px;
  text-wrap: balance;
}
.hero-title .accent { color: var(--accent-display); }
.hero-sub { font-size: clamp(17px, 1.7vw, 20px); color: var(--ink-2); max-width: 52ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.trust-chips { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; }
.trust-chips li {
  font-family: var(--ff-mono); font-size: 13px; letter-spacing: 0.02em; color: var(--ink-2);
  display: flex; align-items: center; gap: 8px;
}
.trust-chips li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ok); flex: none;
}

/* ============ PRODUCT PREVIEW — DOSSIER ============ */
.dossier {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  font-family: var(--ff-body);
  width: 100%; max-width: 480px; margin-inline: auto;
}
.dossier-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  padding: 18px 22px; border-bottom: 1px solid var(--line);
  background: var(--paper-alt);
}
.dossier-id { display: flex; flex-direction: column; gap: 4px; }
.dossier-ref { font-family: var(--ff-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.08em; color: var(--ink); }
.dossier-meta { font-size: 12.5px; color: var(--ink-2); }
.dossier-stamp {
  font-family: var(--ff-mono); font-size: 11px; font-weight: 600; letter-spacing: 0.16em;
  color: var(--accent-ink); border: 1.5px solid var(--accent); border-radius: 4px;
  padding: 5px 9px; transform: rotate(3deg); flex: none;
}

.dossier-body { padding: 8px 22px; }
.req { padding: 16px 0; border-bottom: 1px solid var(--line-soft); }
.req:last-child { border-bottom: none; }
.req-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.req-code { font-family: var(--ff-mono); font-size: 13px; font-weight: 500; color: var(--ink); }
.verdict {
  font-family: var(--ff-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.04em;
  padding: 4px 9px; border-radius: 999px; display: inline-flex; align-items: center; gap: 6px;
}
.verdict::before { content: ""; width: 6px; height: 6px; border-radius: 50%; }
.verdict--ok   { background: rgba(16,185,129,0.12); color: #06694a; }
.verdict--ok::before { background: var(--ok); }
.verdict--warn { background: rgba(229,160,0,0.14); color: #855c00; }
.verdict--warn::before { background: var(--warn); }
.verdict--err  { background: rgba(243,23,0,0.10); color: #b51000; }
.verdict--err::before { background: var(--err); }

.req-text { font-size: 14.5px; color: var(--ink); line-height: 1.5; margin-bottom: 8px; }
.req-cite {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--ff-mono); font-size: 12px; color: var(--ink-2);
}
.cite-icon { width: 12px; height: 14px; flex: none; border: 1px solid var(--ink-3); border-radius: 2px; position: relative; }
.cite-icon::after { content: ""; position: absolute; top: 3px; left: 2px; right: 2px; height: 1px; background: var(--ink-3); box-shadow: 0 3px 0 var(--ink-3), 0 6px 0 var(--ink-3); }
.req-cite--missing { color: var(--err); }
.req-cite--missing .cite-icon { border-color: var(--err); border-style: dashed; }
.req-cite--missing .cite-icon::after { background: var(--err); box-shadow: 0 3px 0 var(--err); }

.dossier-foot {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 22px; border-top: 1px solid var(--line); background: var(--paper-alt);
}
.coverage-meter { flex: 1; height: 6px; border-radius: 999px; background: var(--line); overflow: hidden; }
.coverage-fill { display: block; height: 100%; width: 71%; border-radius: 999px;
  background: linear-gradient(90deg, var(--ok) 0 65%, var(--warn) 65% 88%, var(--err) 88% 100%); }
.coverage-label { font-family: var(--ff-mono); font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.coverage-label strong { color: var(--ink); }

/* ============ FRAMEWORK STRIP / INDEX ============ */
.strip { background: var(--ink-dark); color: var(--paper-on-dark); padding-block: 30px; }
.strip-inner { display: grid; grid-template-columns: auto 1fr; gap: 18px 40px; align-items: center; }
.strip-label {
  font-family: var(--ff-mono); font-size: 12.5px; letter-spacing: 0.06em; color: var(--ink2-on-dark);
  max-width: 22ch;
}
.strip-index {
  display: flex; flex-wrap: wrap; gap: 0;
  border-top: 1px solid var(--line-dark);
}
.strip-index li {
  font-family: var(--ff-mono); font-size: 13.5px; letter-spacing: 0.02em; color: var(--paper-on-dark);
  padding: 12px 18px; border-bottom: 1px solid var(--line-dark);
  flex: 1 1 auto; min-width: max-content; position: relative;
}
.strip-index li::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 1px; height: 14px; background: var(--line-dark);
}
.strip-index li:first-child::before { display: none; }

/* ============ PILLARS ============ */
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 56px); }
.pillar { padding-top: 24px; }
.pillar-rule { display: block; width: 100%; height: 2px; background: var(--ink); margin-bottom: 24px; position: relative; }
.pillar-rule::after { content: ""; position: absolute; right: 0; top: -3px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.pillar h3 { font-size: clamp(20px, 2.2vw, 25px); margin-bottom: 14px; }
.pillar p { font-size: 16.5px; }

/* ============ HOW IT WORKS ============ */
.steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); }
.step {
  display: flex; gap: 24px; padding: clamp(28px, 3.5vw, 44px) clamp(28px, 3vw, 48px) clamp(28px, 3.5vw, 44px) 0;
  border-bottom: 1px solid var(--line); position: relative;
}
.step:nth-child(odd) { border-right: 1px solid var(--line); }
.step:nth-child(odd) { padding-left: 0; }
.step:nth-child(even) { padding-left: clamp(28px, 3vw, 48px); }
.step-n {
  font-family: var(--ff-display); font-weight: 700; font-size: clamp(34px, 4vw, 50px);
  color: var(--accent-display); line-height: 1; flex: none; letter-spacing: -0.04em;
  min-width: 1.6em;
}
.step-body h3 { font-size: clamp(19px, 2vw, 23px); margin-bottom: 12px; }
.step-body p { font-size: 16px; }

/* ============ CAPABILITIES ============ */
.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.cap { background: var(--surface); padding: clamp(30px, 3.4vw, 48px); }
.cap:hover { background: var(--paper); }
.cap-tag {
  font-family: var(--ff-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-ink); margin-bottom: 18px;
}
.cap h3 { font-size: clamp(20px, 2.3vw, 26px); margin-bottom: 14px; }
.cap-body { font-size: 16.5px; }

/* ============ IMPACT ============ */
.impact-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(40px, 6vw, 88px); align-items: start; }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.stat { background: var(--paper-alt); padding: clamp(26px, 3vw, 40px) clamp(24px, 2.6vw, 36px); }
.stat-value {
  font-family: var(--ff-display); font-weight: 800; font-size: clamp(40px, 5vw, 64px);
  color: var(--ink); line-height: 0.95; letter-spacing: -0.04em;
}
.stat-suffix { color: var(--accent-display); }
.stat-label { margin: 14px 0 0; font-size: 15px; color: var(--ink-2); line-height: 1.4; }

.reasons { display: flex; flex-direction: column; }
.reasons li {
  display: grid; grid-template-columns: minmax(140px, auto) 1fr; gap: 6px 28px;
  align-items: baseline; padding: 18px 0; border-bottom: 1px solid var(--line);
}
.reasons li:first-child { padding-top: 0; }
.reasons li:last-child { border-bottom: none; }
.reason-title { font-family: var(--ff-display); font-weight: 600; font-size: 17px; color: var(--ink); }
.reason-body { font-size: 16px; }

/* ============ COVERAGE / FRAMEWORK INDEX ============ */
.cov-index { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 2px solid var(--ink); }
.cov-group { padding: 30px clamp(20px, 2.4vw, 40px) 8px 0; border-bottom: 1px solid var(--line); }
.cov-group:not(:last-child) { border-right: 1px solid var(--line); }
.cov-group:not(:first-child) { padding-left: clamp(20px, 2.4vw, 40px); }
.cov-group-title {
  display: flex; align-items: baseline; gap: 14px;
  font-size: 19px; font-weight: 600; margin-bottom: 24px;
}
.cov-num { font-family: var(--ff-mono); font-size: 13px; font-weight: 600; color: var(--accent-ink); letter-spacing: 0.05em; }
.cov-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.cov-chips li {
  font-family: var(--ff-mono); font-size: 13px; color: var(--ink);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 13px;
  background: var(--surface); transition: border-color .2s var(--ease), color .2s var(--ease);
}
.cov-chips li:hover { border-color: var(--accent); color: var(--accent-ink); }
.cov-note { font-family: var(--ff-mono); font-size: 14px; color: var(--ink-2); margin-top: 28px; padding-left: 2px; }

/* ============ SECURITY (INK) ============ */
.sovereign-band {
  display: inline-flex; align-items: center; gap: 16px;
  border: 1px solid var(--line-dark); border-radius: 999px;
  padding: 12px 22px 12px 14px; margin-bottom: clamp(44px, 5vw, 72px);
  background: var(--ink-dark-2);
}
.sovereign-mark {
  font-family: var(--ff-display); font-weight: 800; font-size: 13px; letter-spacing: 0.08em;
  color: var(--ink-dark); background: var(--accent); border-radius: 50%;
  width: 34px; height: 34px; display: grid; place-items: center; flex: none;
}
.sovereign-text { font-family: var(--ff-display); font-weight: 600; font-size: clamp(15px, 1.7vw, 18px); color: var(--paper-on-dark); }

.security .section-title { color: #fff; }
.sec-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--r-lg); overflow: hidden; }
.sec-point { background: var(--ink-dark-2); padding: clamp(26px, 2.8vw, 40px); }
.sec-point h3 { color: #fff; font-size: clamp(18px, 1.9vw, 21px); margin-bottom: 12px; }
.sec-point p { font-size: 15.5px; color: var(--ink2-on-dark); }

.sec-foot {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px;
  margin-top: clamp(36px, 4vw, 56px); padding-top: 28px; border-top: 1px solid var(--line-dark);
}
.sec-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.sec-badges li {
  font-family: var(--ff-mono); font-size: 13px; color: var(--paper-on-dark);
  border: 1px solid var(--line-dark); border-radius: 999px; padding: 8px 16px;
  display: flex; align-items: center; gap: 9px;
}
.sec-badges li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none; }
.sec-tagline { font-family: var(--ff-display); font-weight: 600; font-size: clamp(15px, 1.7vw, 19px); color: #fff; letter-spacing: -0.01em; }

/* ============ DIFFERENTIATOR / LEDGER ============ */
.ledger { border-top: 2px solid var(--ink); }
.ledger-row {
  display: grid; grid-template-columns: 1fr 1.4fr 1.4fr 1.4fr; gap: clamp(16px, 2vw, 36px);
  padding: 20px 0; border-bottom: 1px solid var(--line); align-items: start;
}
.ledger-head { padding: 14px 0; border-bottom: 1px solid var(--ink); }
.ledger-head .ledger-dim,
.ledger-head .ledger-cell {
  font-family: var(--ff-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2);
}
.ledger-head .ledger-cell--kansa { color: var(--accent-ink); font-weight: 600; }
.ledger-dim { font-family: var(--ff-display); font-weight: 600; font-size: 16px; color: var(--ink); }
.ledger-cell { font-size: 15.5px; color: var(--ink-2); }
.ledger-cell--kansa { font-weight: 500; }
.ledger-cell--kansa .ledger-k { color: var(--ink); position: relative; padding-left: 22px; display: inline-block; }
.ledger-cell--kansa .ledger-k::before {
  content: ""; position: absolute; left: 0; top: 5px; width: 13px; height: 8px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg); transform-origin: left bottom;
}
.ledger-row:hover { background: var(--paper-alt); }

/* ============ INDUSTRIES ============ */
.ind-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.ind { padding: 32px clamp(20px, 2vw, 32px) 32px 0; border-bottom: 1px solid var(--line); }
.ind:not(:last-child) { border-right: 1px solid var(--line); padding-right: clamp(20px, 2vw, 32px); }
.ind:not(:first-child) { padding-left: clamp(20px, 2vw, 32px); }
.ind h3 { font-size: clamp(18px, 1.9vw, 22px); margin-bottom: 12px; }
.ind p { font-size: 15.5px; margin-bottom: 18px; }
.ind-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.ind-tags li {
  font-family: var(--ff-mono); font-size: 12px; color: var(--ink-2);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 5px 11px;
}

/* ============ CTA BAND ============ */
.cta-band { background: var(--ink-dark); color: var(--paper-on-dark); text-align: center; }
.cta-inner { max-width: 760px; display: flex; flex-direction: column; align-items: center; }
.cta-seal {
  width: 52px; height: 52px; border-radius: 50%; margin-bottom: 30px;
  background: var(--accent); position: relative; flex: none;
}
.cta-seal::before {
  content: ""; position: absolute; inset: 6px; border: 1.5px solid rgba(255,255,255,0.55); border-radius: 50%;
}
.cta-seal::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 8px;
  border-left: 2.5px solid #fff; border-bottom: 2.5px solid #fff;
  transform: translate(-50%, -60%) rotate(-45deg);
}
.cta-title { color: #fff; font-size: clamp(30px, 4.6vw, 52px); }
.cta-sub { font-size: clamp(17px, 1.8vw, 20px); color: var(--ink2-on-dark); margin-top: 20px; max-width: 48ch; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; justify-content: center; }
.cta-band .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.4); }
.cta-band .btn-ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }

/* ============ FOOTER ============ */
.site-footer { background: var(--paper); border-top: 1px solid var(--line); padding-top: clamp(56px, 6vw, 80px); }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: clamp(32px, 4vw, 64px);
  padding-bottom: 48px; border-bottom: 1px solid var(--line);
}
.wordmark--footer { font-size: 19px; margin-bottom: 18px; }
.footer-tagline { font-size: 15.5px; color: var(--ink-2); max-width: 34ch; margin-bottom: 22px; }
.footer-built { display: inline-flex; align-items: center; gap: 10px; font-family: var(--ff-mono); font-size: 13px; color: var(--ink); }
.built-mark { font-family: var(--ff-display); font-weight: 800; font-size: 11px; color: #fff; background: var(--ink); border-radius: 50%; width: 26px; height: 26px; display: grid; place-items: center; flex: none; }

.footer-heading { font-family: var(--ff-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 18px; font-weight: 500; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 15.5px; color: var(--ink-2); transition: color .2s var(--ease); width: max-content; }
.footer-col a:hover { color: var(--accent-ink); }

.footer-base {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
  padding-block: 26px;
}
.footer-legal { font-size: 14px; color: var(--ink-3); }
.footer-legal-links { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; font-size: 14px; }
.footer-legal-links a { color: var(--ink-2); }
.footer-legal-links a:hover { color: var(--accent-ink); }
.footer-rights { color: var(--ink-3); }

/* ============ SCROLL REVEAL ============ */
/* Content is visible by default; the hidden start-state only applies when JS
   has flagged <html class="js">, so a JS failure never blanks the page. */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal[data-delay="1"] { transition-delay: .08s; }
.js .reveal[data-delay="2"] { transition-delay: .16s; }
.js .reveal[data-delay="3"] { transition-delay: .24s; }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 920px) {
  .primary-nav, .header-actions { display: none; }
  .nav-toggle { display: flex; }
  .header-inner { gap: 16px; }

  .hero { min-height: 0; padding-block: clamp(48px, 8vh, 80px); }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-copy { max-width: 640px; }
  .hero::before { -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 70%); mask-image: linear-gradient(180deg, #000 0%, transparent 70%); }

  .section-head--split { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .section-head--split .section-sub { border-top: none; padding-top: 0; }

  .pillars-grid { grid-template-columns: 1fr; gap: 0; }
  .pillar { padding-block: 28px; border-bottom: 1px solid var(--line); }
  .pillar:first-child { padding-top: 0; }
  .pillar:last-child { border-bottom: none; padding-bottom: 0; }
  .pillar-rule { width: 48px; }

  .cov-index { grid-template-columns: 1fr; }
  .cov-group { border-right: none !important; padding: 28px 0 8px !important; }
  .cov-group:first-child { padding-top: 24px !important; }

  .impact-layout { grid-template-columns: 1fr; gap: 48px; }

  .sec-grid { grid-template-columns: repeat(2, 1fr); }

  .ind-grid { grid-template-columns: repeat(2, 1fr); }
  .ind { padding: 28px clamp(16px, 3vw, 28px) 28px clamp(16px, 3vw, 28px) !important; }
  .ind:nth-child(odd) { padding-left: 0 !important; border-right: 1px solid var(--line); }
  .ind:nth-child(even) { padding-right: 0 !important; border-right: none; }

  /* Ledger → stacked cards per dimension */
  .ledger { border-top: none; }
  .ledger-head { display: none; }
  .ledger-row {
    grid-template-columns: 1fr; gap: 0; padding: 0; border: 1px solid var(--line);
    border-radius: var(--r-md); margin-bottom: 14px; overflow: hidden;
  }
  .ledger-row:hover { background: transparent; }
  .ledger-dim { background: var(--paper-alt); padding: 14px 18px; border-bottom: 1px solid var(--line); font-size: 16px; }
  .ledger-cell { padding: 14px 18px; display: flex; flex-direction: column; gap: 3px; border-bottom: 1px solid var(--line-soft); }
  .ledger-row .ledger-cell:last-child { border-bottom: none; }
  .ledger-cell:not(.ledger-cell--kansa) span[data-label]::before,
  .ledger-cell--kansa .ledger-k::before {
    content: attr(data-label);
    display: block; font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--ink-3); margin-bottom: 4px;
  }
  .ledger-cell--kansa { background: var(--accent-soft); }
  .ledger-cell--kansa .ledger-k {
    padding-left: 0; color: var(--ink); position: static; display: block;
  }
  .ledger-cell--kansa .ledger-k::before {
    position: static; width: auto; height: auto; border: none; transform: none;
    color: var(--accent-ink);
  }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px 32px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .strip-inner { grid-template-columns: 1fr; gap: 14px; }
  .strip-index li { flex: 1 1 auto; }

  .steps { grid-template-columns: 1fr; }
  .step { padding: 24px 0 !important; border-right: none !important; gap: 18px; }
  .step:last-child { border-bottom: none; }

  .cap-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .sec-grid { grid-template-columns: 1fr; }
  .ind-grid { grid-template-columns: 1fr; border-top: none; }
  .ind { border-right: none !important; border-bottom: 1px solid var(--line); padding: 24px 0 !important; }
  .ind:last-child { border-bottom: none; }

  .reasons li { grid-template-columns: 1fr; gap: 2px; }

  .footer-grid { grid-template-columns: 1fr; }
  .sec-foot { flex-direction: column; align-items: flex-start; }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  .btn:hover { transform: none; }
}