/* OpenBark website, per the brand guide (docs/brand/DESIGN.md v1.0).
   Quiet, trustworthy, warm: Manrope for everything, JetBrains Mono for
   transcripts, timestamps and model IDs; ink text and ink primary buttons;
   one amber accent, kept for the recording dot and the focus ring. Flat
   surfaces with 1 px borders: no glass, no gradients, no coloured shadows.
   The recording pulse is the only expressive animation. */
:root {
  --bg: #ffffff;           /* --ob-surface */
  --bg-2: #f2f4f7;         /* --ob-surface-2 */
  --line: #e5e8ee;         /* --ob-surface-3 */
  --ink: #182230;
  --ink-2: #4b5563;
  --ink-3: #6b7280;
  --accent: #e27a2b;
  --accent-text: #a65218;
  --accent-tint: #fdf4ec;  /* --ob-accent-50: selected rows */
  --record: #e27a2b;
  --primary: #182230;
  --on-primary: #ffffff;
  --primary-hover: #2b3749;
  --success: #1f8a5b;
  --warning: #b7791f;
  --mark-capsule: #e27a2b;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --ease-in: cubic-bezier(0.2, 0, 0, 1);
  --ease-out: cubic-bezier(0.4, 0, 1, 1);
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 22px;
  --r-full: 9999px;
  --measure: 720px;
  --gutter: 24px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f151d;
    --bg-2: #182230;
    --line: #243040;
    --ink: #f5f7fa;
    --ink-2: #b4bcc8;
    --ink-3: #8a94a3;
    --accent: #e98b45;
    --accent-text: #f0b07a;
    --accent-tint: #2b2118;
    --record: #e98b45;
    --primary: #f5f7fa;
    --on-primary: #0f151d;
    --primary-hover: #dde2e9;
    --success: #3fae7c;
    --warning: #e0a84a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f151d;
  --bg-2: #182230;
  --line: #243040;
  --ink: #f5f7fa;
  --ink-2: #b4bcc8;
  --ink-3: #8a94a3;
  --accent: #e98b45;
  --accent-text: #f0b07a;
  --accent-tint: #2b2118;
  --record: #e98b45;
  --primary: #f5f7fa;
  --on-primary: #0f151d;
  --primary-hover: #dde2e9;
  --success: #3fae7c;
  --warning: #e0a84a;
  color-scheme: dark;
}
@media (min-width: 1024px) { :root { --gutter: 48px; } }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/26px var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--line); text-decoration-thickness: 1px; text-underline-offset: 3px; transition: text-decoration-color 120ms var(--ease-in); }
a:hover { text-decoration-color: currentColor; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: var(--r-sm); }
h1, h2, h3, h4 { font-family: var(--font); text-wrap: balance; margin: 0; }
h1, h2 { font-weight: 800; }
h3, h4 { font-weight: 600; }
p { margin: 0; text-wrap: pretty; }
strong { font-weight: 600; }
.wrap {
  width: 100%;
  max-width: calc(1200px + 2 * var(--gutter));
  margin: 0 auto;
  padding-left: max(var(--gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter), env(safe-area-inset-right, 0px));
}
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
svg.lucide { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.skip { position: absolute; left: 16px; top: -100px; z-index: 60; padding: 8px 16px; border-radius: var(--r-md); background: var(--primary); color: var(--on-primary); font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; }

/* Header: the horizontal lockup, three links, one action, on a solid bar. */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg); }
.site-head {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 9;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.lockup { display: block; height: 30px; width: auto; flex: none; color: var(--ink); }
.lockup .grille { fill: var(--bg); }
.lockup .capsule { fill: var(--mark-capsule); }
.lockup text { fill: currentColor; }
.stage { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.01em; color: var(--ink-3); padding-left: 12px; border-left: 1px solid var(--line); }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a { color: var(--ink-2); font-size: 15px; font-weight: 500; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--ink); padding-block: 4px; }
@media (max-width: 760px) { .site-nav a:not(.btn) { display: none; } .stage { display: none; } }

/* Buttons (brand guide 7.2): ink primary, bordered secondary. Height 40,
   48 when prominent; radius 10; weight 600. Accent fill is for Record only. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px; padding: 8px 16px; border-radius: var(--r-md); border: 1px solid transparent;
  font: 600 15px/22px var(--font);
  cursor: pointer; white-space: nowrap; text-decoration: none;
  transition: background-color 120ms var(--ease-in), border-color 120ms var(--ease-in);
}
.btn-lg { min-height: 48px; padding: 12px 20px; font-size: 16px; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: var(--bg); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg-2); }
.btn[aria-disabled="true"] { background: var(--bg-2); color: var(--ink-3); border-color: var(--line); cursor: default; pointer-events: none; }
.site-nav .btn { color: var(--on-primary); }
.site-nav .btn:hover { color: var(--on-primary); }
.link-more { font-size: 15px; font-weight: 600; color: var(--ink); display: inline-flex; align-items: center; gap: 6px; text-decoration: none; }
.link-more::after { content: "\2192"; transition: transform 120ms var(--ease-in); }
.link-more:hover { text-decoration: underline; text-underline-offset: 3px; }
.link-more:hover::after { transform: translateX(2px); }

/* Hero: centred copy, then the real interface at full width. */
.hero { padding-block: 80px 96px; }
.hero-copy { max-width: 900px; margin: 0 auto; text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero h1 { font-size: 48px; line-height: 52px; font-weight: 800; letter-spacing: -0.03em; max-width: 15em; }
.hero-lede { margin-top: 24px; font-size: 19px; line-height: 30px; color: var(--ink-2); max-width: 46em; text-wrap: balance; }
.hero-lede strong { display: block; margin-top: 4px; font-weight: 600; color: var(--ink); }
.nowrap { white-space: nowrap; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 32px; }
.hero-copy .hero-actions { justify-content: center; }
.hero-meta { margin-top: 24px; display: flex; align-items: center; gap: 10px; max-width: 760px; font-size: 13px; line-height: 18px; color: var(--ink-2); text-align: left; }
.hero-meta .status { flex: none; }
.hero .demo { margin-top: 64px; }
@media (max-width: 600px) {
  .hero { padding-block: 48px 56px; }
  .hero-copy { text-align: left; align-items: flex-start; }
  .hero-copy .hero-actions { justify-content: flex-start; }
  .hero h1 { font-size: 36px; line-height: 40px; }
  .hero-lede { margin-top: 16px; font-size: 17px; line-height: 26px; }
  .hero-meta { align-items: flex-start; flex-direction: column; gap: 8px; }
  .hero .demo { margin-top: 40px; }
}

/* The evidence demo (brand guide 7.5): transcript left, note right, both in
   mono; resting on a note line lights the transcript line it came from. */
.demo { margin: 0; background: var(--bg); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.demo-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; padding: 12px 24px; border-bottom: 1px solid var(--line); font-size: 15px; line-height: 24px; color: var(--ink-2); }
.demo-bar strong { color: var(--ink); }
.rec { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; line-height: 18px; color: var(--ink); }
.rec-dot { position: relative; display: inline-block; width: 8px; height: 8px; border-radius: var(--r-full); background: var(--record); flex: none; }
.rec-dot::after { content: ""; position: absolute; inset: 0; border-radius: var(--r-full); background: var(--record); animation: pulse 1.6s ease-out infinite; }
@keyframes pulse { from { transform: scale(1); opacity: 1; } to { transform: scale(1.35); opacity: 0; } }
.demo-split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.demo-pane { padding: 20px 24px 24px; min-width: 0; }
.demo-pane + .demo-pane { border-left: 1px solid var(--line); }
.demo-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; min-height: 24px; margin-bottom: 12px; }
.demo-label { font-size: 12px; line-height: 16px; font-weight: 600; letter-spacing: 0.01em; color: var(--ink-3); }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 10px; border: 1px solid var(--line); border-radius: var(--r-full); font: 500 12px/16px var(--font-mono); color: var(--ink-2); white-space: nowrap; }
.chip::before { content: ""; width: 8px; height: 8px; border-radius: var(--r-full); background: var(--success); flex: none; }
.tx { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.tx li { display: grid; grid-template-columns: 3.5em minmax(0, 1fr); gap: 12px; padding: 6px 10px; border-radius: var(--r-sm); font: 400 15px/26px var(--font-mono); color: var(--ink-2); transition: background-color 120ms var(--ease-in), color 120ms var(--ease-in); }
.tx .who { font: 600 12px/26px var(--font); letter-spacing: 0.01em; color: var(--ink-3); }
.tx li.lit { background: var(--accent-tint); color: var(--ink); }
.note h4 { margin: 20px 0 6px; padding-bottom: 6px; border-bottom: 1px solid var(--line); font-size: 15px; line-height: 24px; font-weight: 600; color: var(--ink); }
.note h4:first-of-type { margin-top: 0; }
.note ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.note button { all: unset; box-sizing: border-box; display: block; width: 100%; padding: 6px 10px; border-radius: var(--r-sm); font: 400 15px/26px var(--font-mono); color: var(--ink); cursor: pointer; text-decoration: underline dotted var(--line); text-decoration-thickness: 1px; text-underline-offset: 5px; transition: background-color 120ms var(--ease-in); }
.note button:hover, .note button:focus-visible, .note button[aria-pressed="true"] { background: var(--bg-2); text-decoration-style: solid; text-decoration-color: var(--ink); }
.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.demo-foot { padding: 12px 24px; border-top: 1px solid var(--line); font-size: 13px; line-height: 18px; color: var(--ink-2); }
@media (max-width: 760px) {
  .demo-split { grid-template-columns: minmax(0, 1fr); }
  .demo-pane + .demo-pane { border-left: 0; border-top: 1px solid var(--line); }
  .demo-bar, .demo-foot { padding-inline: 16px; }
  .demo-pane { padding: 16px; }
  .tx li, .note button { font-size: 14px; line-height: 22px; }
  .tx .who { line-height: 22px; }
}

/* Bands: full width, surface and surface-2 alternating, with one warm band. */
.band { padding-block: 96px; background: var(--bg); }
.band-gray { background: var(--bg-2); }
.band-warm { background: var(--accent-tint); }
.band-head { display: flex; flex-direction: column; gap: 12px; max-width: var(--measure); margin-bottom: 48px; }
.band-head p:not(.eyebrow) { font-size: 17px; line-height: 26px; color: var(--ink-2); }
.band-head-left { max-width: var(--measure); }
.eyebrow { font-size: 13px; line-height: 18px; font-weight: 600; letter-spacing: 0.01em; color: var(--ink-2); }
.band h2 { font-size: 40px; line-height: 46px; font-weight: 800; letter-spacing: -0.025em; }
@media (max-width: 760px) { .band { padding-block: 64px; } .band-head { margin-bottom: 32px; } .band h2 { font-size: 30px; line-height: 36px; } }

/* Pillar: words left, one honest figure right. */
.pillar { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 48px 80px; align-items: center; }
.pillar-copy { display: flex; flex-direction: column; gap: 16px; }
.pillar-copy > p:not(.eyebrow) { font-size: 18px; line-height: 28px; color: var(--ink-2); max-width: 32em; }
.ticks { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.ticks li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; line-height: 24px; font-weight: 500; color: var(--ink); }
.ticks svg.lucide { margin-top: 2px; color: var(--ink); }
.ledger { padding: 32px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg); }
.ledger-head { font-size: 15px; line-height: 24px; font-weight: 500; color: var(--ink-2); }
.ledger-total { margin-top: 4px; font-size: 64px; line-height: 68px; font-weight: 800; letter-spacing: -0.04em; color: var(--ink); }
.ledger dl { margin: 24px 0 0; }
.ledger dl div { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 14px 0; border-top: 1px solid var(--line); }
.ledger dt { font-size: 15px; line-height: 24px; font-weight: 500; color: var(--ink-2); }
.ledger dd { margin: 0; font-size: 15px; line-height: 24px; font-weight: 800; color: var(--ink); text-align: right; }
.ledger dd.mono { font-weight: 500; }
@media (max-width: 900px) { .pillar { grid-template-columns: minmax(0, 1fr); } .ledger { padding: 24px; } .ledger-total { font-size: 48px; line-height: 52px; } }

/* Duo: two pillars as large cards, words on top, a small figure below. */
.duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.panel { display: flex; flex-direction: column; gap: 32px; padding: 40px; border: 1px solid var(--line); border-radius: var(--r-xl); background: var(--bg-2); min-width: 0; }
.panel-copy { display: flex; flex-direction: column; gap: 12px; }
.panel h2 { font-size: 32px; line-height: 38px; letter-spacing: -0.02em; }
.panel-copy > p:not(.eyebrow) { font-size: 17px; line-height: 26px; color: var(--ink-2); max-width: 34em; }
.vault, .flow { margin-top: auto; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg); }
.vault ul { list-style: none; margin: 0; padding: 4px 20px; }
.vault li { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 4px 16px; padding: 12px 0; font-size: 15px; line-height: 24px; color: var(--ink); }
.vault li + li { border-top: 1px solid var(--line); }
.vault .where { display: inline-flex; align-items: center; gap: 8px; font: 400 13px/18px var(--font-mono); color: var(--ink-2); }
.vault .where svg.lucide { width: 16px; height: 16px; color: var(--ink); }
.vault-foot { padding: 12px 20px; border-top: 1px solid var(--line); font-size: 13px; line-height: 18px; color: var(--ink-2); }
.flow { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: center; gap: 12px; padding: 20px; }
.node { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 12px; border: 1px solid var(--line); border-radius: var(--r-md); font-size: 15px; line-height: 22px; font-weight: 600; text-align: center; color: var(--ink); }
.node svg.lucide { width: 24px; height: 24px; }
.node-main { border-color: var(--ink); }
.flow-arrow { color: var(--ink-3); display: inline-flex; }
.node-off { grid-column: 1 / -1; flex-direction: row; justify-content: center; gap: 10px; border-style: dashed; color: var(--ink-3); font-weight: 500; }
.node-off svg.lucide { width: 20px; height: 20px; }
.node-off .off { font: 400 13px/18px var(--font-mono); color: var(--ink-2); }
@media (max-width: 1000px) { .duo { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 600px) { .panel { padding: 24px 20px; gap: 24px; } .panel h2 { font-size: 26px; line-height: 32px; } .flow { padding: 16px; gap: 8px; } }

/* Built carefully: three short points, no cards. */
.careful { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 48px; }
.careful li { display: flex; flex-direction: column; gap: 8px; padding-top: 24px; border-top: 1px solid var(--line); }
.careful svg.lucide { width: 24px; height: 24px; margin-bottom: 8px; color: var(--ink); }
.careful h3 { font-size: 18px; line-height: 24px; letter-spacing: -0.01em; }
.careful p { font-size: 15px; line-height: 24px; color: var(--ink-2); }
.careful-more { margin-top: 40px; }
@media (max-width: 860px) { .careful { grid-template-columns: minmax(0, 1fr); gap: 24px; } }

/* Numbers (features page): no boxes; labels 500, values 800. */
.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.stat { display: flex; flex-direction: column; gap: 8px; min-width: 0; padding: 24px 0 32px; border-top: 1px solid var(--line); }
.stat-value { font-size: 40px; font-weight: 800; line-height: 44px; letter-spacing: -0.03em; color: var(--ink); font-variant-numeric: tabular-nums; }
.stat-label { font-size: 15px; line-height: 24px; font-weight: 500; color: var(--ink); }
.stat-source { font: 400 12px/16px var(--font-mono); color: var(--ink-3); overflow-wrap: anywhere; }
@media (max-width: 480px) { .stats { grid-template-columns: minmax(0, 1fr); } .stat-value { font-size: 32px; line-height: 38px; } }

/* Downloads */
.downloads { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.dl { padding: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg); display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.dl[data-mine="true"] { border-color: var(--ink); }
.dl h3 { font-size: 18px; line-height: 24px; letter-spacing: -0.01em; }
.dl .files { display: flex; flex-direction: column; align-items: stretch; gap: 8px; margin-top: auto; padding-top: 16px; width: 100%; }
.dl .file { display: flex; flex-direction: column; align-items: stretch; gap: 4px; }
.dl .file .btn { white-space: normal; }
.dl .req { font-size: 15px; line-height: 24px; color: var(--ink-2); }
.dl .tag { font-size: 12px; line-height: 16px; color: var(--ink-3); text-align: center; }
.release-line { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 15px; line-height: 24px; color: var(--ink-2); }
@media (max-width: 1000px) { .downloads { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .downloads { grid-template-columns: minmax(0, 1fr); } }

/* Who made it: heading left, words right, on the warm band. */
.maker { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 24px 80px; align-items: end; }
.maker .eyebrow { margin-bottom: 12px; }
.maker-body { display: flex; flex-direction: column; gap: 16px; font-size: 17px; line-height: 27px; color: var(--ink-2); }
.maker-body strong { color: var(--ink); }
@media (max-width: 860px) { .maker { grid-template-columns: minmax(0, 1fr); } }

/* Contact: the address as the action, the coffee beside it. */
.contact { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px 48px; align-items: stretch; }
.contact-main { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.contact-main p { font-size: 17px; line-height: 26px; color: var(--ink-2); max-width: 34em; }
.contact-mail { margin-top: 8px; }
.coffee { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; padding: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg); }
.coffee h3 { font-size: 18px; line-height: 24px; letter-spacing: -0.01em; }
.coffee p { color: var(--ink-2); }
.coffee .link-more { margin-top: auto; padding-top: 8px; }
@media (max-width: 860px) { .contact { grid-template-columns: minmax(0, 1fr); } }

/* Footer: the lockup, then the small print. */
.site-foot { background: var(--bg); border-top: 1px solid var(--line); padding-block: 48px; font-size: 13px; line-height: 20px; color: var(--ink-2); }
.foot-name { margin-bottom: 24px; color: var(--ink); }
.foot-name .lockup { height: 28px; }
.foot-row { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
.site-foot nav { display: flex; gap: 8px 20px; flex-wrap: wrap; }
.site-foot a { color: var(--ink-2); text-decoration: none; }
.site-foot a:hover { color: var(--ink); text-decoration: underline; }

/* Not found: an empty state (brand guide 7.7). */
.lost { min-height: 70dvh; display: flex; align-items: center; padding-block: 80px; }
.lost-mark { width: 48px; height: 48px; color: var(--ink-3); margin-bottom: 20px; display: block; }
.lost h1 { font-size: 32px; line-height: 38px; letter-spacing: -0.02em; max-width: 20em; }
.lost p { margin-top: 12px; font-size: 17px; line-height: 26px; color: var(--ink-2); max-width: 36em; }

/* Features page */
.fx-hero { padding-block: 64px 16px; }
.fx-hero h1 { font-size: 40px; line-height: 46px; letter-spacing: -0.025em; max-width: 18em; }
.fx-hero p { margin-top: 16px; font-size: 17px; line-height: 26px; color: var(--ink-2); max-width: var(--measure); }
@media (max-width: 600px) { .fx-hero { padding-block: 40px 8px; } .fx-hero h1 { font-size: 32px; line-height: 38px; } }
.fx-stats { padding-block: 24px 40px; }
.stats-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 900px) { .stats-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .stats-4 { grid-template-columns: minmax(0, 1fr); } }
.fx-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; padding-block: 24px 80px; }
.fx-toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 88px); align-self: start; display: flex; flex-direction: column; gap: 2px; max-height: calc(100dvh - 112px); overflow-y: auto; }
.fx-toc a { display: flex; justify-content: space-between; gap: 8px; padding: 8px 12px; border-radius: var(--r-md); color: var(--ink-2); font-size: 15px; line-height: 22px; text-decoration: none; transition: background-color 120ms var(--ease-in); }
.fx-toc a:hover { background: var(--bg-2); color: var(--ink); }
.fx-toc .count { font: 400 12px/22px var(--font-mono); color: var(--ink-3); }
.fx-filter { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.fx-filter label { font-size: 15px; line-height: 24px; font-weight: 600; color: var(--ink); }
.fx-filter input { width: 100%; min-height: 40px; padding: 8px 12px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--bg-2); color: var(--ink); font: inherit; font-size: 15px; }
.fx-filter input::placeholder { color: var(--ink-3); }
.fx-filter input:focus-visible { border-color: var(--ink); border-radius: var(--r-md); }
.fx-cat { padding-bottom: 48px; scroll-margin-top: calc(env(safe-area-inset-top, 0px) + 88px); }
.fx-cat + .fx-cat { padding-top: 40px; border-top: 1px solid var(--line); }
.fx-cat h2 { font-size: 24px; line-height: 30px; letter-spacing: -0.02em; }
.fx-cat > p { margin-top: 8px; color: var(--ink-2); max-width: var(--measure); }
.fx-items { list-style: none; margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.fx-item { padding: 20px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg); display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.fx-item h3 { font-size: 16px; line-height: 24px; letter-spacing: -0.01em; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.fx-item .benefit { color: var(--ink); font-size: 15px; line-height: 24px; }
.fx-item .detail { color: var(--ink-2); font-size: 13px; line-height: 20px; }
/* Status chips (brand guide 7.6): pill, caption weight 600, 8 px dot. */
.status { display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 10px; border: 1px solid var(--line); border-radius: var(--r-full); font-size: 12px; line-height: 16px; font-weight: 600; letter-spacing: 0.01em; color: var(--ink-2); white-space: nowrap; vertical-align: middle; }
.status::before { content: ""; width: 8px; height: 8px; border-radius: var(--r-full); background: var(--ink-3); flex: none; }
.status[data-s="testing"]::before, .status[data-s="beta"]::before { background: var(--warning); }
@media (max-width: 1000px) { .fx-items { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 860px) {
  .fx-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .fx-toc { position: static; max-height: none; flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .fx-toc a { border: 1px solid var(--line); }
  .fx-filter { width: 100%; }
}
.together { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; margin-top: 48px; }
.together h3 { font-size: 18px; line-height: 24px; letter-spacing: -0.01em; }
.timeline { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; }
.timeline li { display: grid; grid-template-columns: 7.5em minmax(0, 1fr); gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); font-size: 15px; line-height: 24px; }
.timeline .when { font: 400 12px/24px var(--font-mono); color: var(--ink-3); }
.practices { margin: 16px 0 0; padding-left: 1.1em; display: flex; flex-direction: column; gap: 8px; color: var(--ink-2); font-size: 15px; line-height: 24px; }
.practices li::marker { color: var(--ink-3); }
@media (max-width: 860px) { .together { grid-template-columns: minmax(0, 1fr); gap: 32px; } }

/* Version history */
.hx-next { padding: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg); }
.hx-next h2 { font-size: 24px; line-height: 30px; letter-spacing: -0.02em; }
.hx-next > p { margin-top: 6px; color: var(--ink-2); }
.hx-next ul { margin: 16px 0 0; padding-left: 1.1em; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 40px; }
.hx-next li::marker { color: var(--ink-3); }
.hx-next li p:first-child { color: var(--ink); }
.evidence { color: var(--ink-3); font: 400 12px/16px var(--font-mono); overflow-wrap: anywhere; margin-top: 4px; }
/* "How we know": the detail and evidence behind a feature or change, closed by
   default so the page leads with what the clinician gets (brand guide 8). */
.how { margin-top: 2px; }
.how > summary { display: inline-flex; align-items: center; gap: 8px; min-height: 24px; cursor: pointer; list-style: none; font-size: 13px; line-height: 20px; font-weight: 600; color: var(--ink-2); border-radius: var(--r-sm); }
.how > summary::-webkit-details-marker { display: none; }
.how > summary::before { content: ""; width: 6px; height: 6px; margin-top: -2px; border-right: 1.75px solid currentColor; border-bottom: 1.75px solid currentColor; transform: rotate(-45deg); transition: transform 120ms var(--ease-in); }
.how[open] > summary::before { margin-top: -4px; transform: rotate(45deg); }
.how > summary:hover { color: var(--ink); }
.how > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.how[open] > summary { margin-bottom: 4px; }
.how .detail { color: var(--ink-2); font-size: 13px; line-height: 20px; }
.how-stats { margin-top: 8px; }
.how-stats ul { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; max-width: 72ch; }
.how-stats li { display: flex; flex-direction: column; gap: 2px; }
.how-what { font-size: 13px; line-height: 20px; color: var(--ink-2); }
.hx-group { padding-bottom: 40px; scroll-margin-top: calc(env(safe-area-inset-top, 0px) + 88px); }
.hx-group + .hx-group { padding-top: 40px; border-top: 1px solid var(--line); }
.hx-group > h2 { font-size: 24px; line-height: 30px; letter-spacing: -0.02em; display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.hx-group > h2 span { font-size: 15px; line-height: 24px; font-weight: 500; letter-spacing: 0; color: var(--ink-2); }
.hx-entry { display: grid; grid-template-columns: 7.5em minmax(0, 1fr); gap: 8px 24px; padding-top: 24px; }
.hx-date { font: 400 12px/26px var(--font-mono); color: var(--ink-3); }
.hx-entry h3 { font-size: 18px; line-height: 24px; letter-spacing: -0.01em; }
.hx-summary { margin-top: 6px; color: var(--ink-2); max-width: var(--measure); }
.hx-items { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.hx-items li { padding-left: 16px; border-left: 2px solid var(--line); max-width: 72ch; font-size: 15px; line-height: 24px; }
.hx-items .status { margin-left: 6px; }
@media (max-width: 860px) { .hx-next ul { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 600px) { .hx-entry { grid-template-columns: minmax(0, 1fr); gap: 4px; } .hx-next { padding: 20px; } }

/* Reduced motion: a static recording dot and no transitions. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rec-dot::after { animation: none; }
  *, *::before, *::after { transition-duration: 0s !important; }
}

/* The large mark above the hero headline (brand guide 2.1: exact geometry,
   ink parts white on dark, the capsule the only amber, grille shows the page;
   clear space at least one toe height). */
.hero-mark { display: block; width: 112px; height: 112px; margin: 0 0 32px; flex: none; }
.hero-mark .mark-ink { fill: var(--ink); }
.hero-mark .mark-cradle { stroke: var(--ink); }
.hero-mark .capsule { fill: var(--mark-capsule); }
.hero-mark .grille { fill: var(--bg); }
@media (max-width: 767px) { .hero-mark { width: 72px; height: 72px; margin-bottom: 24px; } }
.coming-soon { margin-top: 16px; display: flex; align-items: center; gap: 10px; color: var(--ink-2); font-size: 15px; }