/* innards.io — one stylesheet, no build step.
   Tokens are copied from the app (src/app.css) so the site and the app
   read as one thing: warm paper, one teal accent, four severity hues. */

:root {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;

  --paper: #f7f5f1;
  --paper-2: #ffffff;
  --paper-3: #efece6;
  --ink: #1d1b18;
  --ink-2: #57534c;
  --ink-3: #8a857c;
  --line: #e4e0d8;
  --line-2: #d3cec4;

  --accent: #0f766e;
  --accent-ink: #ffffff;
  --accent-soft: #d9efec;

  --crit: #b42318;
  --crit-soft: #fde8e6;
  --warn: #b54708;
  --warn-soft: #fdefd8;
  --info: #175cd3;
  --info-soft: #e0ebfb;
  --good: #067647;
  --good-soft: #dcf5e7;

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.04), 0 24px 60px -12px rgba(29, 27, 24, 0.18);

  --measure: 62ch;
  --wrap: 1080px;
  --gutter: clamp(20px, 4vw, 40px);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #161513;
    --paper-2: #1f1d1a;
    --paper-3: #26241f;
    --ink: #ece8e1;
    --ink-2: #b3ada3;
    --ink-3: #7d776d;
    --line: #2e2b26;
    --line-2: #3b372f;

    --accent: #2dd4bf;
    --accent-ink: #062b28;
    --accent-soft: #143c39;

    --crit: #f97066;
    --crit-soft: #3b1a17;
    --warn: #fdb022;
    --warn-soft: #3d2a0c;
    --info: #84adff;
    --info-soft: #14263f;
    --good: #47cd89;
    --good-soft: #0f2e21;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 20px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.3), 0 24px 60px -12px rgba(0, 0, 0, 0.6);

    color-scheme: dark;
  }
}

/* ---------------------------------------------------------------- base */

*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (min-width: 720px) { html { font-size: 17px; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

main { flex: 1; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.12;
  text-wrap: balance;
}
h1 { font-size: clamp(2.2rem, 6.4vw, 4.1rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.35rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

p { margin: 0; }
p + p { margin-top: 0.85em; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }

code, pre {
  font-family: var(--mono);
  font-size: 0.86em;
}
code {
  padding: 0.1em 0.35em;
  border-radius: 5px;
  background: var(--paper-3);
  border: 1px solid var(--line);
}
pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  border-radius: var(--radius-sm);
  background: var(--paper-3);
  border: 1px solid var(--line);
  line-height: 1.5;
}
pre code { padding: 0; border: 0; background: none; font-size: inherit; }

img, svg { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }

ul, ol { margin: 0; padding-left: 1.25em; }
li + li { margin-top: 0.35em; }

button { font: inherit; color: inherit; cursor: pointer; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.skip {
  position: absolute; left: 8px; top: -60px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  background: var(--accent); color: var(--accent-ink); font-weight: 600;
  z-index: 100;
}
.skip:focus { top: 8px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------------------------------------------------------------- layout */

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

.section { padding-block: clamp(56px, 9vw, 112px); }
.section.tight { padding-block: clamp(40px, 6vw, 72px); }
.section + .section { border-top: 1px solid var(--line); }
.section.alt { background: var(--paper-2); }

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-head { max-width: var(--measure); margin-bottom: clamp(28px, 4vw, 48px); }
.section-head .lead { margin-top: 14px; }
.lead {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: var(--measure);
  text-wrap: pretty;
}
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.small { font-size: 0.86rem; }
.center { text-align: center; }
.center .lead, .center .section-head { margin-inline: auto; }

.grid { display: grid; gap: clamp(16px, 2.5vw, 28px); }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(20px, 3vw, 28px);
}
.section.alt .card { background: var(--paper); }

.prose { max-width: var(--measure); }
.prose h2 { margin-top: 2.4em; margin-bottom: 0.6em; font-size: clamp(1.35rem, 2.6vw, 1.7rem); }
.prose h3 { margin-top: 1.8em; margin-bottom: 0.4em; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose ul, .prose ol { margin-bottom: 0.9em; color: var(--ink-2); }
.prose li strong, .prose p strong { color: var(--ink); }
.prose ul li, .prose ol li { margin-top: 0.4em; }
.prose table { margin-bottom: 1em; }

/* ---------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-2);
  background: var(--paper-2);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  line-height: 1.2;
  white-space: nowrap;
  transition: background 0.12s, border-color 0.12s, transform 0.06s, filter 0.12s;
}
.btn:hover { background: var(--paper-3); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn.primary:hover { filter: brightness(1.06); background: var(--accent); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--paper-3); color: var(--ink); }
.btn.lg { padding: 14px 22px; font-size: 1.05rem; }
.btn.block { width: 100%; }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.pill {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.4;
  vertical-align: middle;
}
.pill.accent { background: var(--accent-soft); color: var(--accent); }
.pill.good { background: var(--good-soft); color: var(--good); }
.pill.warning { background: var(--warn-soft); color: var(--warn); }
.pill.critical { background: var(--crit-soft); color: var(--crit); }
.pill.info { background: var(--info-soft); color: var(--info); }
.pill.neutral { background: var(--paper-3); color: var(--ink-2); }

/* ---------------------------------------------------------------- header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  min-height: 64px;
  padding-block: 10px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.brand svg { width: 28px; height: 28px; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 4px; }
.site-nav a {
  padding: 7px 11px;
  border-radius: var(--radius-sm);
  color: var(--ink-2);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}
.site-nav a:hover { background: var(--paper-3); color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 650; }
.site-nav .btn { margin-left: 6px; padding: 8px 14px; font-size: 0.95rem; }
@media (max-width: 560px) {
  .site-nav .btn { display: none; }
}

/* ---------------------------------------------------------------- hero */

.hero { padding-block: clamp(48px, 8vw, 104px) 0; overflow: hidden; }
.hero .wrap { display: grid; gap: clamp(28px, 4vw, 48px); }
.hero-copy { max-width: 760px; }
.hero-copy h1 { margin-bottom: 20px; }
.hero-copy .lead { font-size: clamp(1.1rem, 1.8vw, 1.35rem); max-width: 56ch; }
.hero-copy .btn-row { margin-top: 30px; }
.hero-meta {
  margin-top: 18px;
  display: flex; flex-wrap: wrap; gap: 6px 18px;
  color: var(--ink-3); font-size: 0.88rem;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta svg { width: 14px; height: 14px; color: var(--accent); }

.shot {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--line-2);
  background: var(--paper-2);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.shot img { width: 100%; }
.shot.crop { aspect-ratio: 1180 / 820; }
.shot.crop img { height: 100%; object-fit: cover; object-position: top; }
.hero .shot {
  margin-bottom: -1px;
  border-bottom: 0;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  -webkit-mask-image: linear-gradient(to bottom, #000 78%, transparent);
  mask-image: linear-gradient(to bottom, #000 78%, transparent);
}
figcaption { margin-top: 10px; font-size: 0.86rem; color: var(--ink-3); }

/* ---------------------------------------------------------------- level demo */

.demo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}
@media (min-width: 880px) {
  .demo { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
}

.seg {
  display: inline-flex;
  flex-wrap: wrap;
  padding: 3px;
  border-radius: 999px;
  background: var(--paper-3);
  border: 1px solid var(--line);
}
.seg button {
  padding: 7px 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-2);
  font-weight: 500;
}
.seg button[aria-selected="true"], .seg button.on {
  background: var(--paper-2);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
  font-weight: 650;
}
.seg button:focus-visible { outline-offset: -2px; }

.finding {
  position: relative;
  padding: 18px 20px 18px 22px;
  border-radius: var(--radius);
  background: var(--paper-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.finding::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--warn);
}
.finding.critical::before { background: var(--crit); }
.finding.good::before { background: var(--good); }
.finding.info::before { background: var(--info); }
.finding-head { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.finding-head h3 { font-size: 1.05rem; letter-spacing: -0.01em; }
.finding-cat { color: var(--ink-3); font-size: 0.82rem; white-space: nowrap; }
.finding-body { margin-top: 10px; color: var(--ink-2); min-height: 4.6em; }
.finding-body[data-level="expert"] { font-family: var(--font); }
.finding-body code { font-size: 0.84em; }
.finding-action { margin-top: 10px; color: var(--ink-2); }
.finding-action strong { color: var(--ink); }
.finding-evidence {
  margin-top: 12px;
  padding: 8px 10px;
  border-radius: 6px;
  background: var(--paper-3);
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.78rem;
}
.demo > div > .lead { margin-top: 14px; }
.demo .levels { margin-top: 22px; }
.demo-controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 14px; }
.demo-controls .label { font-size: 0.82rem; color: var(--ink-3); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.demo-note { margin-top: 12px; font-size: 0.86rem; color: var(--ink-3); }
/* Without JS every level is shown, each labelled, and the switches are hidden. */
.no-js .finding-body::before { content: attr(data-label) " — "; font-weight: 650; color: var(--ink); }
.no-js .finding-body + .finding-body { margin-top: 8px; }
.no-js .demo-controls { display: none; }
.no-js .finding + .finding { margin-top: 16px; }

.levels { display: grid; gap: 14px; margin-top: 8px; }
.levels li { list-style: none; margin: 0; display: grid; grid-template-columns: 96px 1fr; gap: 10px; align-items: baseline; }
.levels b { font-weight: 650; color: var(--ink); }
.levels span { color: var(--ink-2); }

/* ---------------------------------------------------------------- steps */

.steps { counter-reset: step; display: grid; gap: clamp(16px, 2.5vw, 28px); grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.steps li { list-style: none; margin: 0; counter-increment: step; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--ink-2); }

/* ---------------------------------------------------------------- capability list */

.split {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}
@media (min-width: 880px) { .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.split .section-head { margin-bottom: 0; }

.caps { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.caps li { margin: 0; display: grid; gap: 5px; }
.caps .row { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.caps .row span:first-child { font-weight: 500; }
.caps .grade { font-size: 0.82rem; font-weight: 650; white-space: nowrap; }
.caps .bar { height: 5px; border-radius: 4px; background: var(--paper-3); overflow: hidden; }
.caps .bar i { display: block; height: 100%; border-radius: 4px; background: var(--good); }
.caps .limits { font-size: 0.8rem; color: var(--ink-3); }
.caps .g-great .grade, .caps .g-good .grade { color: var(--good); }
.caps .g-ok .grade, .caps .g-poor .grade { color: var(--warn); }
.caps .g-unsuitable .grade { color: var(--crit); }
.caps .g-ok .bar i, .caps .g-poor .bar i { background: var(--warn); }
.caps .g-unsuitable .bar i { background: var(--crit); }

/* ---------------------------------------------------------------- feature list */

.features { display: grid; gap: clamp(16px, 2.5vw, 28px); grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.features .card h3 { margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.features .card p { color: var(--ink-2); }
.features .card svg { width: 20px; height: 20px; color: var(--accent); flex: none; }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checks li { margin: 0; display: grid; grid-template-columns: 24px 1fr; gap: 12px; color: var(--ink-2); }
.checks li strong { color: var(--ink); }
.checks svg { width: 22px; height: 22px; color: var(--accent); margin-top: 2px; }

/* ---------------------------------------------------------------- pricing */

.tiers {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  align-items: stretch;
}
@media (min-width: 640px) {
  .tiers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tiers .tier:last-child:nth-child(odd) { grid-column: 1 / -1; }
}
@media (min-width: 980px) {
  /* five cards: three on the first row, two centred beneath */
  .tiers { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .tiers .tier { grid-column: span 2; }
  .tiers .tier:nth-child(4) { grid-column: 2 / span 2; }
  .tiers .tier:last-child:nth-child(odd) { grid-column: 4 / span 2; }
}
.tier {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--paper-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.section.alt .tier { background: var(--paper); }
.tier.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.tier-name { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.tier-name h3 { font-size: 1.05rem; }
.price { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; }
.price b { font-size: 2rem; font-weight: 650; letter-spacing: -0.03em; line-height: 1; }
.price span { color: var(--ink-3); font-size: 0.9rem; }
.price-note { font-size: 0.86rem; color: var(--ink-3); margin-top: -6px; }
.tier ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; flex: 1; align-content: start; }
.tier li { margin: 0; display: grid; grid-template-columns: 16px 1fr; gap: 8px; font-size: 0.93rem; color: var(--ink-2); }
.tier li::before { content: ""; width: 6px; height: 6px; margin-top: 0.55em; border-radius: 50%; background: var(--accent); justify-self: center; }
.tier li.inherit { color: var(--ink-3); }
.tier li.inherit::before { background: var(--line-2); }
.tier .btn { margin-top: 6px; }
.tier .fine { font-size: 0.8rem; color: var(--ink-3); }

.compare { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
.compare th, .compare td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare th { font-weight: 650; }
.compare thead th { font-size: 0.8rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3); }
.compare td.yes { color: var(--accent); font-weight: 650; }
.compare td.no { color: var(--ink-3); }
.compare tbody th { font-weight: 500; color: var(--ink); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll table { min-width: 720px; }

/* ---------------------------------------------------------------- download */

.os-cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.os-card { display: flex; flex-direction: column; gap: 14px; }
.os-card.current { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.os-card h3 { display: flex; align-items: center; gap: 10px; }
.os-card h3 svg { width: 22px; height: 22px; color: var(--ink-2); }
.os-card .dl { display: grid; gap: 8px; }
.os-card .dl .btn { justify-content: space-between; }
.os-card .dl .btn small { color: inherit; opacity: 0.7; font-weight: 500; }
.os-card .note { font-size: 0.86rem; color: var(--ink-3); }
.notice {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--ink);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.notice svg { width: 20px; height: 20px; flex: none; color: var(--accent); margin-top: 2px; }

/* ---------------------------------------------------------------- press */

.facts { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--paper-2); }
.facts div { display: grid; grid-template-columns: minmax(110px, 160px) 1fr; gap: 12px; padding: 12px 16px; border-top: 1px solid var(--line); }
.facts div:first-child { border-top: 0; }
.facts dt { color: var(--ink-3); font-size: 0.86rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; padding-top: 2px; }
.facts dd { margin: 0; }

.gallery { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.gallery figure { margin: 0; }
.gallery .shot.crop { aspect-ratio: 1180 / 760; }
.gallery figcaption a { font-weight: 600; }

blockquote {
  margin: 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--accent);
  font-size: 1.15rem;
  line-height: 1.45;
  color: var(--ink);
  text-wrap: pretty;
}
blockquote cite { display: block; margin-top: 8px; font-style: normal; font-size: 0.9rem; color: var(--ink-3); }
.quotes { display: grid; gap: 28px; }

/* ---------------------------------------------------------------- cta band */

.cta {
  border-radius: var(--radius);
  padding: clamp(32px, 5vw, 56px);
  background: var(--ink);
  color: var(--paper);
  display: grid;
  gap: 24px;
  align-items: center;
}
@media (min-width: 760px) { .cta { grid-template-columns: 1fr auto; } }
.cta h2 { color: inherit; }
.cta p { color: color-mix(in srgb, var(--paper) 72%, transparent); margin-top: 8px; }
.cta .btn.primary { background: var(--accent); color: var(--accent-ink); }
.cta .btn.ghost { color: var(--paper); border-color: color-mix(in srgb, var(--paper) 30%, transparent); }
.cta .btn.ghost:hover { background: color-mix(in srgb, var(--paper) 12%, transparent); color: var(--paper); }
@media (prefers-color-scheme: dark) {
  .cta { background: var(--paper-2); border: 1px solid var(--line); color: var(--ink); }
  .cta p { color: var(--ink-2); }
  .cta .btn.ghost { color: var(--ink); border-color: var(--line-2); }
  .cta .btn.ghost:hover { background: var(--paper-3); color: var(--ink); }
}

/* ---------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: clamp(32px, 5vw, 56px);
  color: var(--ink-2);
  font-size: 0.92rem;
}
.site-footer .wrap { display: grid; gap: 28px; }
@media (min-width: 720px) { .site-footer .wrap { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.site-footer h4 { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer li { margin: 0; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; }
.site-footer .brand { margin-bottom: 12px; }
.site-footer .colophon { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid var(--line); font-size: 0.84rem; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }

/* ---------------------------------------------------------------- page heads & misc */

.page-head { padding-block: clamp(48px, 7vw, 88px) clamp(24px, 4vw, 40px); }
.page-head h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 16px; }

.faq { display: grid; gap: 8px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper-2); padding: 0 18px; }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ink-3); font-weight: 400; font-size: 1.3rem; line-height: 1; flex: none; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding-bottom: 16px; color: var(--ink-2); }

.err { min-height: 60vh; display: grid; place-items: center; text-align: center; padding-block: clamp(48px, 10vw, 120px); }
.err h1 { font-size: clamp(1.8rem, 4.5vw, 2.8rem); }
.err .code { font-family: var(--mono); color: var(--accent); font-size: 0.9rem; letter-spacing: 0.1em; margin-bottom: 12px; }
.err .btn-row { justify-content: center; margin-top: 28px; }
.err svg.big { width: 96px; height: 96px; margin: 0 auto 20px; color: var(--ink-3); }

hr { border: 0; border-top: 1px solid var(--line); margin: 0; }