/* Feather: ink on paper, written by a quill.
   Shape rule: buttons are pills, panels are 10px, inline chips 4px.
   Colour rule: paper neutrals plus one ink-blue accent. */

:root {
  --paper: #f1f2ef;
  --paper-2: #e9eae6;
  --panel: rgba(255, 255, 255, 0.55);
  --ink: #1b2130;
  --text: #1b2130;
  --muted: #5a6172;
  --faint: #8c92a0;
  --rule: rgba(27, 33, 48, 0.12);
  --rule-strong: rgba(27, 33, 48, 0.22);
  --accent: #2e48b8;
  --accent-ink: #2e48b8;
  --on-accent: #f4f5f2;
  --feather: 27, 33, 48;          /* rgb triplet for the canvas quill */
  --shadow: 0 1px 2px rgba(27, 33, 48, 0.05), 0 12px 32px -18px rgba(27, 33, 48, 0.25);
  --grain-o: 0.35;
  --nav-bg: rgba(241, 242, 239, 0.76);

  --r-panel: 10px;
  --r-chip: 4px;
  --gutter: clamp(16px, 4vw, 56px);
  --maxw: 1240px;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);

  --serif: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --font: "Geist", ui-sans-serif, system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SFMono-Regular", monospace;
  color-scheme: light;
}

/* Night ink: pale writing on deep blue-black paper */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #12141b;
    --paper-2: #181b23;
    --panel: rgba(255, 255, 255, 0.035);
    --ink: #e9e8e3;
    --text: #e9e8e3;
    --muted: #9ea2ad;
    --faint: #686d7a;
    --rule: rgba(233, 232, 227, 0.1);
    --rule-strong: rgba(233, 232, 227, 0.2);
    --accent: #9fb2ff;
    --accent-ink: #9fb2ff;
    --on-accent: #12141b;
    --feather: 233, 232, 227;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px -20px rgba(0, 0, 0, 0.7);
    --grain-o: 0.5;
    --nav-bg: rgba(18, 20, 27, 0.72);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #12141b;
  --paper-2: #181b23;
  --panel: rgba(255, 255, 255, 0.035);
  --ink: #e9e8e3;
  --text: #e9e8e3;
  --muted: #9ea2ad;
  --faint: #686d7a;
  --rule: rgba(233, 232, 227, 0.1);
  --rule-strong: rgba(233, 232, 227, 0.2);
  --accent: #9fb2ff;
  --accent-ink: #9fb2ff;
  --on-accent: #12141b;
  --feather: 233, 232, 227;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px -20px rgba(0, 0, 0, 0.7);
  --grain-o: 0.5;
  --nav-bg: rgba(18, 20, 27, 0.72);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.5s var(--ease-out), color 0.5s var(--ease-out);
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
code, kbd { font-family: var(--mono); font-size: 0.84em; }
::selection { background: var(--accent); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* Paper fibre, fixed so it never repaints with scroll */
.paper {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: var(--grain-o); mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='f'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8 0.35' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.45 0 0 0 0 0.46 0 0 0 0 0.5 0 0 0 0.22 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23f)'/%3E%3C/svg%3E");
}
:root[data-theme="dark"] .paper { mix-blend-mode: screen; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .paper { mix-blend-mode: screen; } }

.quill { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 60; pointer-events: none; }

/* ---------- Type ---------- */
.display {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.05;
  color: var(--ink);
}
.display em { font-style: italic; color: var(--accent-ink); }
.display .line { display: block; padding-bottom: 0.08em; }

.num { font-family: var(--mono); font-size: 13px; color: var(--faint); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  height: 50px; padding: 0 24px; border-radius: 999px;
  font-weight: 500; font-size: 15px; white-space: nowrap;
  transition: transform 0.16s var(--ease-out), background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn i { font-size: 18px; }
.btn:active { transform: scale(0.97); }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-ghost { border: 1px solid var(--rule-strong); color: var(--text); }
@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover { background: var(--accent); color: var(--on-accent); }
  .btn-ghost:hover { border-color: var(--ink); }
}
.icon-btn {
  width: 38px; height: 38px; border-radius: 999px; display: grid; place-items: center;
  color: var(--muted); border: 1px solid var(--rule);
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.16s var(--ease-out);
}
.icon-btn i { font-size: 18px; }
.icon-btn:active { transform: scale(0.94); }
.icon-btn:hover { color: var(--text); border-color: var(--rule-strong); }
.link-btn { color: var(--muted); font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }
.link-btn:hover { color: var(--text); }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50; height: 68px;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: 0 var(--gutter);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.45s var(--ease-out);
}
.nav.is-scrolled { background: var(--nav-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom-color: var(--rule); }
.nav.is-hidden { transform: translateY(-100%); }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 24px; height: 24px; display: block; transition: transform 0.6s var(--ease-out); }
.brand-mark .bm-body { fill: var(--ink); }
.brand-mark .bm-shaft { stroke: var(--paper); stroke-width: 1.2; stroke-linecap: round; fill: none; }
.brand-mark .bm-cut { stroke: var(--paper); stroke-width: 1.1; stroke-linecap: round; fill: none; }
.brand-mark .bm-tip { stroke: var(--accent); stroke-width: 2; stroke-linecap: round; fill: none; }
@media (hover: hover) and (pointer: fine) { .brand:hover .brand-mark { transform: rotate(-10deg) translateY(-1px); } }
.wordmark { font-family: var(--serif); font-weight: 600; font-size: 24px; letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 4px; }
.nav-links a { font-size: 14px; color: var(--muted); padding: 8px 14px; border-radius: 999px; transition: color 0.2s ease, background-color 0.2s ease; }
.nav-links a:hover { color: var(--text); background: var(--rule); }
.nav-actions { display: flex; gap: 10px; justify-content: flex-end; align-items: center; }

/* ---------- Layout ---------- */
main > section { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh; min-height: 100dvh;
  display: grid; grid-template-columns: repeat(12, 1fr); grid-template-rows: 1fr auto; column-gap: 24px;
  padding-top: 112px; padding-bottom: 40px;
}
.hero-main { grid-column: 1 / span 7; align-self: center; position: relative; }
.hero-title { font-size: clamp(54px, 7.6vw, 116px); line-height: 1; }
.flourish { display: block; width: min(78%, 520px); height: auto; margin-top: -4px; overflow: visible; }
.flourish path { fill: none; stroke: var(--accent); stroke-width: 2.4; stroke-linecap: round; }
.hero-sub { margin-top: 26px; max-width: 30em; font-size: clamp(17px, 1.4vw, 19px); color: var(--muted); }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
.quill-perch { grid-column: 8 / span 5; align-self: stretch; min-height: 360px; }

.hero-index { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.hero-index a { display: grid; grid-template-columns: 36px 1fr auto; gap: 6px; align-items: start; padding-top: 18px; border-top: 1px solid var(--rule-strong); }
.idx-text strong { display: block; font-weight: 500; font-size: 16px; }
.idx-text small { display: block; color: var(--muted); font-size: 14px; margin-top: 2px; }
.hero-index i { color: var(--faint); font-size: 18px; transition: transform 0.35s var(--ease-out), color 0.2s ease; }
@media (hover: hover) and (pointer: fine) { .hero-index a:hover i { transform: translate(3px, 3px); color: var(--accent-ink); } }

/* ---------- Chapters ---------- */
.chapter { padding-top: 160px; padding-bottom: 40px; }
.chapter .num { display: block; margin-bottom: 14px; }
.chapter h2, .compare h2 { font-size: clamp(40px, 5vw, 72px); }
.chapter-copy p { margin-top: 22px; color: var(--muted); max-width: 34em; }

.chapter-files { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; align-items: end; }
.chapter-files .chapter-copy { grid-column: 1 / span 6; }
.chapter-files .tree { grid-column: 8 / span 5; }
.facts { margin-top: 32px; }
.facts li { display: flex; align-items: center; gap: 14px; padding: 13px 0; font-size: 15px; border-top: 1px solid var(--rule); }
.facts li:last-child { border-bottom: 1px solid var(--rule); }
.facts i { font-size: 18px; color: var(--accent-ink); }

.inset { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--r-panel); box-shadow: var(--shadow); }
.tree { padding: 26px 28px; font-family: var(--mono); font-size: 14px; color: var(--muted); }
.tree-line { display: flex; align-items: center; gap: 10px; padding: 5px 0; white-space: nowrap; }
.tree-line i { font-size: 16px; color: var(--faint); }
.tree-line.root { color: var(--text); }
.tree-line.root i { color: var(--accent-ink); }
.tree-line.l1 { padding-left: 24px; }
.tree-line.l2 { padding-left: 48px; }

/* Editor */
.chapter-blocks .chapter-copy { margin-bottom: 48px; }
.editor { overflow: hidden; }
.editor-bar { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 10px 14px; border-bottom: 1px solid var(--rule); }
.editor-tabs { display: inline-flex; padding: 3px; border-radius: 999px; background: var(--rule); }
.editor-tabs button { padding: 5px 13px; font-size: 13px; color: var(--muted); border-radius: 999px; transition: color 0.2s ease, background-color 0.2s ease; }
.editor-tabs button[aria-selected="true"] { color: var(--text); background: var(--paper); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12); }
.editor-file { justify-self: center; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.editor-status { font-family: var(--mono); font-size: 12px; color: var(--faint); transition: color 0.25s ease; }
.editor-status.is-saving { color: var(--accent-ink); }

.editor-body { display: grid; grid-template-columns: 1fr 1fr; height: 580px; }
.editor-body[data-mode="source"], .editor-body[data-mode="page"] { grid-template-columns: 1fr; }
.editor-body[data-mode="source"] .editor-page, .editor-body[data-mode="page"] .editor-source { display: none; }
.editor-body[data-mode="page"] .editor-page { max-width: 760px; width: 100%; margin: 0 auto; }
.editor-source, .editor-page { scrollbar-width: thin; scrollbar-color: var(--rule-strong) transparent; }
.editor-source {
  width: 100%; height: 100%; resize: none; border: 0; outline: none;
  padding: 28px; background: color-mix(in srgb, var(--paper-2) 70%, transparent); color: var(--text);
  font-family: var(--mono); font-size: 14px; line-height: 1.75; border-right: 1px solid var(--rule);
}
.editor-page { padding: 32px 44px 44px; overflow: auto; height: 100%; }
.editor-page > * + * { margin-top: 0.8em; }
.editor-page h1, .editor-page h2, .editor-page h3 { font-family: var(--serif); font-weight: 600; line-height: 1.1; letter-spacing: -0.01em; }
.editor-page h1 { font-size: 38px; }
.editor-page h2 { font-size: 25px; margin-top: 1.3em; }
.editor-page h3 { font-size: 20px; margin-top: 1.2em; }
.editor-page p, .editor-page li { color: color-mix(in srgb, var(--text) 86%, var(--muted)); }
.editor-page ul { padding-left: 1.2em; list-style: disc; }
.editor-page ul.tasks { list-style: none; padding-left: 0; }
.editor-page .task { display: flex; gap: 10px; align-items: flex-start; }
.editor-page .task input {
  appearance: none; -webkit-appearance: none; flex: none; margin: 5px 0 0;
  width: 16px; height: 16px; border-radius: 4px; border: 1.5px solid var(--rule-strong); cursor: pointer;
  display: grid; place-items: center; transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s var(--ease-out);
}
.editor-page .task input:active { transform: scale(0.88); }
.editor-page .task input:checked { background: var(--accent); border-color: var(--accent); }
.editor-page .task input:checked::after { content: ""; width: 8px; height: 4px; border-left: 2px solid var(--on-accent); border-bottom: 2px solid var(--on-accent); transform: translateY(-1px) rotate(-45deg); }
.editor-page .task.done span { color: var(--faint); text-decoration: line-through; }
.editor-page blockquote { margin: 1em 0 0; padding: 12px 16px; border-left: 2px solid var(--accent); background: var(--rule); border-radius: 0 var(--r-chip) var(--r-chip) 0; }
.editor-page .wikilink { color: var(--accent-ink); border-bottom: 1px dashed currentColor; }
.editor-page code { padding: 1px 5px; background: var(--rule); border-radius: var(--r-chip); }
.editor-page pre { padding: 14px; background: var(--rule); border-radius: var(--r-chip); overflow: auto; }
.editor-page hr { border: 0; border-top: 1px solid var(--rule); margin: 1.6em 0; }
.editor-page table { width: 100%; border-collapse: collapse; font-size: 14px; }
.editor-page th { text-align: left; color: var(--muted); font-weight: 500; }
.editor-page th, .editor-page td { padding: 8px 10px; border-bottom: 1px solid var(--rule); }
.editor-page .tag { color: var(--accent-ink); font-family: var(--mono); font-size: 0.88em; }
.editor-page .empty { color: var(--faint); }
.editor-foot { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; padding: 11px 16px; border-top: 1px solid var(--rule); color: var(--faint); font-size: 13px; }
.editor-foot .link-btn { margin-left: auto; }
kbd { display: inline-grid; place-items: center; min-width: 1.8em; height: 1.7em; padding: 0 0.4em; border-radius: var(--r-chip); border: 1px solid var(--rule-strong); color: var(--text); font-size: 0.78em; }

/* Graph */
.graph-panel { position: relative; height: min(640px, 80vh); overflow: hidden; }
.graph { position: absolute; inset: 0; width: 100%; height: 100%; cursor: grab; touch-action: none; }
.graph:active { cursor: grabbing; }
.graph-copy { position: relative; padding: 40px; max-width: 480px; pointer-events: none; }
.graph-copy p code { padding: 1px 6px; background: var(--rule); border-radius: var(--r-chip); }

/* ---------- Compare ---------- */
.compare { padding-top: 160px; padding-bottom: 40px; max-width: 980px !important; }
.compare h2 { margin-bottom: 40px; }
.ct-row { display: grid; grid-template-columns: 2.4fr repeat(3, 1fr); align-items: center; border-top: 1px solid var(--rule); }
.ct-row:last-child { border-bottom: 1px solid var(--rule); }
.ct-row > * { padding: 17px 12px; }
.ct-row > *:first-child { padding-left: 0; }
.ct-row > *:not(:first-child) { text-align: center; color: var(--muted); }
.ct-row i { font-size: 18px; }
.ct-row .us { color: var(--text); }
.ct-row .us i { color: var(--accent-ink); }
.ct-row .no { color: var(--faint); }
.ct-row .part { font-family: var(--mono); font-size: 12px; }
.ct-head { border-top: 0; }
.ct-head > * { font-size: 14px; }
.ct-head .us { font-family: var(--serif); font-size: 22px; font-weight: 600; }

/* ---------- Sign-off ---------- */
.sign { padding-top: 180px; padding-bottom: 120px; text-align: center; }
.sign-word { font-size: clamp(88px, 16vw, 240px); line-height: 0.95; }
.sign-word .line { display: inline-block; }
.flourish-sign { margin: 0 auto; width: min(60%, 520px); }
.sign-sub { margin-top: 36px; color: var(--muted); }
.dl-row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }
.dl {
  display: inline-flex; align-items: center; gap: 10px; height: 50px; padding: 0 24px; border-radius: 999px;
  border: 1px solid var(--rule-strong); font-weight: 500; font-size: 15px;
  transition: transform 0.16s var(--ease-out), border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}
.os-logo { width: 18px; height: 18px; display: block; flex: none; }
.btn-icon { display: inline-flex; }
.btn-icon .os-logo { width: 17px; height: 17px; }
.dl:active { transform: scale(0.97); }
.dl.is-current { background: var(--ink); color: var(--paper); border-color: var(--ink); }
@media (hover: hover) and (pointer: fine) { .dl:not(.is-current):hover { border-color: var(--ink); } }

/* ---------- Footer ---------- */
.footer {
  max-width: var(--maxw); margin: 0 auto; padding: 24px var(--gutter) 40px;
  display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--rule);
  font-size: 13px; color: var(--faint);
}
.footer nav { display: flex; gap: 22px; }
.footer a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav { grid-template-columns: 1fr auto; }
  .hero-main { grid-column: 1 / span 8; }
  .quill-perch { grid-column: 9 / span 4; }
  .chapter-files .chapter-copy { grid-column: 1 / -1; }
  .chapter-files .tree { grid-column: 1 / -1; margin-top: 40px; }
}
@media (max-width: 767px) {
  .hero { display: flex; flex-direction: column; padding-top: 96px; }
  .quill-perch { order: -1; min-height: 170px; width: 100%; }
  .hero-title { font-size: clamp(48px, 13vw, 64px); }
  .hero-index { grid-template-columns: 1fr; gap: 0; margin-top: 56px; }
  .hero-index a { padding: 16px 0; }
  .chapter { padding-top: 112px; }
  .chapter-files { display: block; }
  .editor-bar { grid-template-columns: 1fr auto; }
  .editor-file { display: none; }
  .editor-body, .editor-body[data-mode="split"] { grid-template-columns: 1fr; height: auto; }
  .editor-source { height: 300px; border-right: 0; border-bottom: 1px solid var(--rule); }
  .editor-page { height: auto; max-height: 520px; padding: 24px 20px; }
  .editor-foot span:first-child { display: none; }
  .graph-panel { height: 560px; }
  .graph-copy { padding: 24px; }
  .compare { padding-top: 112px; }
  .ct-row { grid-template-columns: 1.7fr repeat(3, 0.8fr); }
  .ct-row > * { padding: 14px 6px; font-size: 14px; }
  .ct-head > * { font-size: 12px; }
  .ct-head .us { font-size: 17px; }
  .sign { padding-top: 120px; padding-bottom: 80px; }
  .footer { padding: 22px 16px 32px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---------- 04 Version history ---------- */
.chapter-history { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; align-items: center; }
.chapter-history .chapter-copy { grid-column: 1 / span 5; }
.history-mock { grid-column: 7 / span 6; display: grid; grid-template-columns: 170px 1fr; overflow: hidden; font-size: 14px; }
.hm-list { display: grid; align-content: start; gap: 2px; padding: 16px 10px; border-right: 1px solid var(--rule); }
.hm-day { margin: 10px 8px 4px; font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--faint); }
.hm-day:first-child { margin-top: 0; }
.hm-item { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; padding: 7px 9px; border-radius: 7px; }
.hm-item b { font-weight: 500; font-variant-numeric: tabular-nums; }
.hm-item small { font-size: 11.5px; color: var(--faint); }
.hm-item.is-on { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent-ink); }
.hm-diff { display: grid; align-content: start; padding: 18px 20px 22px; }
.hm-sum { margin-bottom: 12px; font-size: 13px; color: var(--muted); }
.hm-diff code { display: block; padding: 2px 10px; font-size: 13px; line-height: 1.75; border-left: 2px solid transparent; color: var(--muted); white-space: pre-wrap; }
.hm-diff .add, .hm-sum .add { color: #3d7a3a; }
.hm-diff .del, .hm-sum .del { color: #b23a3a; }
.hm-diff code.add { background: rgba(61, 122, 58, 0.1); border-left-color: #3d7a3a; }
.hm-diff code.del { background: rgba(178, 58, 58, 0.08); border-left-color: #b23a3a; text-decoration: line-through; text-decoration-color: rgba(178, 58, 58, 0.5); }
:root[data-theme="dark"] .hm-diff .add, :root[data-theme="dark"] .hm-sum .add { color: #8fd18a; }
:root[data-theme="dark"] .hm-diff .del, :root[data-theme="dark"] .hm-sum .del { color: #f08080; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hm-diff .add, :root:not([data-theme="light"]) .hm-sum .add { color: #8fd18a; }
  :root:not([data-theme="light"]) .hm-diff .del, :root:not([data-theme="light"]) .hm-sum .del { color: #f08080; }
}

/* ---------- 05 Quick capture ---------- */
.chapter-capture { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; align-items: center; }
.capture-mock {
  grid-column: 1 / span 6; order: 1; align-self: center; display: grid; gap: 10px; padding: 16px 20px 14px;
  background: var(--paper); border: 1px solid var(--rule-strong); border-radius: 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 30px 70px -30px rgba(27, 33, 48, 0.45); transform: rotate(-1.2deg);
}
.chapter-capture .chapter-copy { grid-column: 8 / span 5; order: 2; }
.cm-head { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--muted); }
.cm-head i { color: var(--accent-ink); font-size: 16px; }
.cm-head span { margin-left: auto; }
.cm-text { min-height: 84px; font-family: var(--serif); font-size: 26px; font-weight: 500; line-height: 1.3; }
.cm-caret { display: inline-block; width: 2px; height: 1em; margin-left: 2px; vertical-align: -0.12em; background: var(--accent); animation: caret 1.05s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.cm-foot { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--faint); }

/* ---------- 06 The small things ---------- */
.more-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 32px; margin-top: 48px; }
.more-grid li { padding: 26px 0 28px; border-top: 1px solid var(--rule); }
.more-grid i { font-size: 22px; color: var(--accent-ink); }
.more-grid strong { display: block; margin-top: 14px; font-weight: 500; font-size: 17px; }
.more-grid p { margin-top: 6px; font-size: 15px; color: var(--muted); max-width: 26em; }

/* ---------- 07 Plugins ---------- */
.chapter-plugins { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; align-items: center; }
.chapter-plugins .chapter-copy { grid-column: 1 / span 6; }
.plugin-stack { grid-column: 8 / span 5; display: grid; gap: 12px; }
.plugin-card { display: block; padding: 16px 18px; }
.plugin-card strong { font-weight: 600; font-size: 15px; }
.plugin-card p { margin: 3px 0 10px; font-size: 14px; color: var(--muted); }
.perm { display: inline-flex; align-items: center; gap: 5px; margin: 0 6px 0 0; padding: 2px 9px; border-radius: 999px; font-size: 12px; background: var(--rule); color: var(--muted); }
.perm.ok { background: none; padding-left: 0; color: #3d7a3a; }
:root[data-theme="dark"] .perm.ok { color: #8fd18a; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .perm.ok { color: #8fd18a; } }
@media (min-width: 1025px) { .plugin-stack .plugin-card:nth-child(2) { transform: translateX(-28px); } }

/* ---------- Compare and download additions ---------- */
.compare-note { margin: -24px 0 32px; color: var(--muted); }
.ct-row .part.us { color: var(--accent-ink); }
.dl.is-soon { opacity: 0.55; cursor: default; }
.dl.is-soon small { margin-left: 2px; font-family: var(--mono); font-size: 11px; color: var(--faint); }

@media (max-width: 1024px) {
  .chapter-history .chapter-copy, .chapter-capture .chapter-copy, .chapter-plugins .chapter-copy { grid-column: 1 / -1; order: 0; }
  .history-mock, .capture-mock, .plugin-stack { grid-column: 1 / -1; margin-top: 40px; order: 1; }
  .more-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .chapter-history, .chapter-capture, .chapter-plugins { display: block; }
  .history-mock { grid-template-columns: 1fr; }
  .hm-list { grid-template-columns: repeat(2, 1fr); border-right: 0; border-bottom: 1px solid var(--rule); }
  .hm-day { grid-column: 1 / -1; }
  .capture-mock { transform: none; }
  .cm-head span, .cm-foot span:last-child { display: none; }
  .more-grid { grid-template-columns: 1fr; }
  .ct-row { grid-template-columns: 1.5fr repeat(3, 0.85fr); }
}

/* ---------- Plugins page ---------- */
.page-plugins main > section { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.nav-links a[aria-current="page"] { color: var(--text); }
.pl-hero { padding-top: 150px; padding-bottom: 40px; }
.pl-hero .num { display: block; margin-bottom: 14px; }
.pl-hero h1 { font-size: clamp(52px, 7vw, 104px); line-height: 1; }
.pl-safety { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 32px; margin-top: 56px; }
.pl-safety li { display: grid; gap: 6px; padding-top: 18px; border-top: 1px solid var(--rule-strong); }
.pl-safety i { font-size: 22px; color: var(--accent-ink); }
.pl-safety strong { font-weight: 500; }
.pl-safety span { font-size: 15px; color: var(--muted); }
.pl-browse { padding-top: 64px; }
.pl-tools { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.pl-search { display: flex; align-items: center; gap: 10px; flex: 1 1 280px; max-width: 420px; height: 46px; padding: 0 16px; border: 1px solid var(--rule-strong); border-radius: 999px; background: var(--panel); }
.pl-search:focus-within { border-color: var(--accent); }
.pl-search i { color: var(--faint); font-size: 18px; }
.pl-search input { flex: 1; min-width: 0; border: 0; outline: none; background: none; font: inherit; font-size: 16px; color: var(--text); }
.pl-filters { display: flex; flex-wrap: wrap; gap: 6px; }
.pl-filters button { height: 36px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--rule); font-size: 14px; color: var(--muted); transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease; }
.pl-filters button:hover { color: var(--text); border-color: var(--rule-strong); }
.pl-filters button.is-on { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.pl-count { margin: 22px 0 14px; font-family: var(--mono); font-size: 13px; color: var(--faint); }
.pl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.pl-card { display: flex; flex-direction: column; padding: 20px 22px 18px; transition: border-color 0.2s ease, transform 0.25s var(--ease-out); }
.pl-card:hover { border-color: var(--rule-strong); }
.pl-card.is-focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent); }
.pl-card-head { display: flex; align-items: baseline; gap: 8px; }
.pl-card h3 { font-family: var(--serif); font-size: 26px; font-weight: 600; line-height: 1.1; }
.pl-version { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.pl-by { margin-top: 2px; font-size: 13px; color: var(--faint); }
.pl-desc { margin-top: 10px; font-size: 15px; color: var(--muted); flex: 1; }
.pl-perms { display: flex; flex-wrap: wrap; gap: 6px 0; margin-top: 14px; }
.pl-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--rule); }
.pl-empty { color: var(--muted); }
.pl-install-note { display: flex; align-items: center; gap: 8px; margin-top: 22px; font-size: 14px; color: var(--faint); }
.pl-install-note a { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 3px; }
.pl-build { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; align-items: center; padding-top: 140px; padding-bottom: 100px; }
.pl-build > div { grid-column: 1 / span 5; }
.pl-build .num { display: block; margin-bottom: 14px; }
.pl-build h2 { font-size: clamp(40px, 5vw, 64px); }
.pl-build p { margin-top: 20px; color: var(--muted); }
.pl-build code { padding: 1px 5px; border-radius: var(--r-chip); background: var(--rule); }
.pl-steps { margin-top: 20px; counter-reset: step; }
.pl-steps li { counter-increment: step; display: flex; gap: 12px; padding: 10px 0; border-top: 1px solid var(--rule); font-size: 15px; }
.pl-steps li::before { content: counter(step); font-family: var(--mono); font-size: 13px; color: var(--faint); padding-top: 2px; }
.pl-code { grid-column: 7 / span 6; margin: 0; padding: 26px 28px; overflow: auto; font: 14px/1.7 var(--mono); }
.pl-code code { padding: 0; background: none; }
.pl-code .c { color: var(--faint); }
.pl-code .s { color: var(--accent-ink); }
@media (max-width: 1024px) {
  .pl-build > div, .pl-code { grid-column: 1 / -1; }
  .pl-code { margin-top: 40px; }
}
@media (max-width: 767px) {
  .pl-hero { padding-top: 110px; }
  .pl-safety { grid-template-columns: 1fr; gap: 18px; }
  .pl-grid { grid-template-columns: 1fr; }
  .pl-build { display: block; padding-top: 100px; }
}
.dl-alt { margin-top: 14px; font-size: 13px; color: var(--faint); text-align: center; }
.dl-alt a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
@media (hover: hover) and (pointer: fine) { .dl-alt a:hover { color: var(--ink); } }