/* The Gastrologer — quiet, cinematic, restrained.
   Sage & clay on warm paper; clay accent = annotation, not alarm.
   Sans-led: Schibsted Grotesk display over Source Serif 4 body (self-hosted woff2). */

:root{
  --paper:#faf8f2;
  --paper-warm:#f1efe5;
  --reassure-bg:#ebe9dc;
  --ink:#2a342c;
  --ink-soft:#4f5a51;
  --warm-gray:#6d7468;
  --line:#e2e0d3;
  --line-strong:#cfd0c0;
  --accent:#a85f3e;
  --accent-deep:#8f5236;
  --accent-on-dark:#cf9270;
  --feature-bg:#243029;
  --feature-ink:#eef0e7;
  --btn-sec-ink:#8f5236;
  --engrave:#2f3b33;
  --max:680px;
  --font-head:"Schibsted Grotesk",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-body:"Source Serif 4",Georgia,"Times New Roman",serif;
}

/* self-hosted faces — drop the woff2 into fonts/ (OFL). Until present, falls
   back to system-ui / Georgia, so palette + role-flip are already correct. */
@font-face{font-family:"Schibsted Grotesk";src:url("fonts/schibsted-grotesk.woff2") format("woff2");font-weight:400 700;font-style:normal;font-display:swap}
@font-face{font-family:"Source Serif 4";src:url("fonts/source-serif-4.woff2") format("woff2");font-weight:200 900;font-style:normal;font-display:swap}
@font-face{font-family:"Source Serif 4";src:url("fonts/source-serif-4-italic.woff2") format("woff2");font-weight:200 900;font-style:italic;font-display:swap}

/* labels & wayfinding speak in the display grotesk (physician-precision) */
.eyebrow,.mode-tag,.thinking-label,.assess-k,.assess-item dt,.soon-tag,
.app-card dt,.nav-links{font-family:var(--font-head)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-deep);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
h1,h2,h3{font-family:var(--font-head);font-weight:500;letter-spacing:-.01em;color:var(--ink)}

/* ---- skip link (a11y: keyboard / screen-reader users jump past nav to content) ---- */
.skip-link{position:absolute;left:.6rem;top:.6rem;z-index:200;background:var(--ink);color:var(--paper);
  padding:.6rem 1rem;border-radius:.5rem;font-family:var(--font-head);font-size:.95rem;
  transform:translateY(-220%);transition:transform .18s ease}
.skip-link:focus{transform:none;outline:2px solid var(--accent);outline-offset:2px}

/* ---- nav ---- */
.nav{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  max-width:var(--max);margin:0 auto;padding:1.4rem 1.25rem;
}
.brand{font-family:var(--font-head);font-size:1.15rem;color:var(--ink)}
.brand:hover{text-decoration:none}
.nav-links{display:flex;flex-wrap:wrap;gap:1.05rem;font-size:.93rem}
.nav-links a{color:var(--ink-soft)}
.nav-links a:hover{color:var(--accent-deep)}

/* ---- shared layout ---- */
main{max-width:var(--max);margin:0 auto;padding:1rem 1.25rem 4rem}
.eyebrow{
  text-transform:uppercase;letter-spacing:.16em;font-size:.72rem;font-weight:600;
  color:var(--accent-deep);margin:0 0 .9rem;
}
.patient-question{
  font-family:var(--font-body);font-size:1.3rem;line-height:1.5;color:var(--ink-soft);
  max-width:34ch;margin:.4rem 0 0;
}
.chapter-head{padding:1.5rem 0 .5rem;position:relative;overflow:hidden}
.chapter-head>*{position:relative;z-index:1}
.chapter-head h1{font-size:clamp(2.3rem,7vw,3.4rem);line-height:1.05;margin:.1rem 0 .2rem}

/* ---- engraving watermark: anatomy as quiet atmosphere behind the question ---- */
.hero-watermark{
  position:absolute;z-index:0;pointer-events:none;
  top:-22px;right:-46px;width:min(56%,290px);height:auto;
  color:var(--engrave);opacity:.06;
}
@media (min-width:720px){ .hero-watermark{width:300px;right:-30px} }
.chapter{padding:.5rem 0}
.chapter h2{font-size:1.45rem;margin:2.4rem 0 .5rem}
.chapter p,.movement p{max-width:62ch;color:var(--ink)}
/* scannable key-points list — short, bulleted, easy to skim (not a wall of prose) */
.m-points{list-style:none;margin:.7rem 0 0;padding:0;display:grid;gap:.6rem;max-width:60ch}
.m-points li{position:relative;padding-left:1.45rem;line-height:1.5;color:var(--ink)}
.m-points li::before{content:"";position:absolute;left:.32rem;top:.58em;width:.42rem;height:.42rem;border-radius:50%;background:var(--accent);opacity:.8}
.m-points li strong{font-weight:600;color:var(--ink)}
.movement p{margin:.6rem 0}

/* ---- reassurance: warm card, first thing after the question ---- */
.reassure{
  background:var(--reassure-bg);border-radius:14px;
  padding:1.4rem 1.6rem;margin:2rem 0 .5rem;
}
.reassure ul{list-style:none;margin:0;padding:0;display:grid;gap:.7rem}
.reassure li{display:flex;align-items:flex-start;gap:.7rem;font-size:1.08rem;line-height:1.45}
.reassure .tick{
  flex:0 0 auto;color:var(--accent-deep);font-weight:600;
  width:1.4em;height:1.4em;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--accent);border-radius:50%;font-size:.8em;margin-top:.15em;
}

/* ---- gastroenterologist thinking: the cinematic, museum-label moment ---- */
.thinking{
  background:var(--feature-bg);color:var(--feature-ink);border-radius:14px;
  padding:1.7rem 1.8rem;margin:2.6rem 0;
}
.thinking-label{
  display:block;text-transform:uppercase;letter-spacing:.16em;font-size:.7rem;font-weight:600;
  color:var(--accent-on-dark);margin-bottom:.7rem;
}
.thinking p{margin:0;max-width:60ch;font-size:1.06rem;line-height:1.7;color:var(--feature-ink)}

/* ---- common questions ---- */
.qa details{border-top:1px solid var(--line);padding:.9rem 0}
.qa details:last-of-type{border-bottom:1px solid var(--line)}
.qa summary{
  cursor:pointer;list-style:none;font-size:1.08rem;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";color:var(--accent-deep);font-size:1.35rem;line-height:1}
.qa details[open] summary::after{content:"\2013"}
.qa details>div p{margin:.7rem 0 .2rem;color:var(--ink-soft)}

/* ---- engraving / visual explanation ---- */
.engraving figure{margin:2.8rem 0;text-align:center}
.engraving-art{width:min(72%,240px);height:auto;color:var(--engrave);opacity:.92}
.engraving figcaption{
  font-family:var(--font-body);font-style:italic;color:var(--warm-gray);
  font-size:.95rem;margin-top:.6rem;
}

/* ---- mode tags + accent ---- */
.mode-tag{
  display:inline-block;text-transform:uppercase;letter-spacing:.16em;
  font-size:.7rem;font-weight:600;color:var(--accent-deep);margin-bottom:.6rem;
}

/* ---- continue (next chapter), not a sales pitch ---- */
.continue{
  border:1px solid var(--line-strong);border-radius:14px;
  padding:1.7rem 1.8rem;margin:2.6rem 0 0;
}
.continue h2{font-size:1.5rem;margin:.1rem 0 .4rem}
.continue p{max-width:58ch;color:var(--ink)}
.continue .bring{color:var(--ink-soft);font-size:.98rem;margin-top:.5rem}
.continue .btn-primary{margin-top:1.1rem}
.soon-tag{
  display:inline-block;margin-top:1rem;font-size:.85rem;color:var(--warm-gray);
  border:1px dashed var(--line-strong);border-radius:999px;padding:.3rem .85rem;
}

/* ---- assessment: the app's framework, surfaced once at the resolution point ---- */
.assessment{
  border:1px solid var(--line-strong);border-radius:14px;
  padding:1.7rem 1.8rem;margin:2.6rem 0 0;background:var(--paper-warm);
}
.assessment h2{font-size:1.5rem;margin:.1rem 0 .4rem}
.assess-intro{max-width:58ch;color:var(--ink-soft);margin:.2rem 0 1.2rem}
.assess-k{
  display:block;text-transform:uppercase;letter-spacing:.13em;font-size:.66rem;
  font-weight:600;color:var(--accent-deep);margin:0 0 .5rem;
}
.assess-instrument{margin:0 0 1.4rem}
.assess-instrument p{max-width:62ch;color:var(--ink);margin:0}
.assess-block{margin:1.4rem 0;padding-top:1.2rem;border-top:1px solid var(--line)}
.assess-tracks{margin:0;padding-left:1.1rem;color:var(--ink)}
.assess-tracks li{margin:.3rem 0}
.assess-list{margin:0}
.assess-item{margin:0 0 .9rem}
.assess-item dt{font-weight:600;color:var(--ink);margin:0 0 .15rem}
.assess-item dd{margin:0;max-width:60ch;color:var(--ink-soft)}
.assess-note{
  margin:1.4rem 0 0;padding-top:1rem;border-top:1px solid var(--line);
  font-size:.85rem;color:var(--warm-gray);max-width:58ch;
}

/* ---- red flags ---- */
.redflags{
  border:1px solid var(--line-strong);border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;padding:1.4rem 1.6rem;margin:2.4rem 0;
}
.redflags h2{font-size:1.3rem;margin:.2rem 0 .6rem}
.redflags ul{margin:.4rem 0 1rem;padding-left:1.1rem}
.redflags li{margin:.3rem 0}
.redflag-action{color:var(--ink);font-size:1rem;margin:.6rem 0 1.1rem;max-width:58ch}

/* ---- connect path ---- */
.connect-path{margin:3rem 0 0;padding-top:2rem;border-top:1px solid var(--line)}
.connect-path h2{font-size:1.4rem;margin:.2rem 0 .4rem}
.connect-path p{max-width:56ch;color:var(--ink-soft)}
.connect-path .actions{display:flex;flex-wrap:wrap;gap:.7rem;margin:1.1rem 0 .7rem}
.quiet-link{font-size:.92rem;color:var(--warm-gray)}

/* ---- buttons: one primary action per section ---- */
.btn-primary,.btn-secondary{
  display:inline-block;border-radius:999px;font-size:1rem;font-weight:500;
  padding:.7rem 1.4rem;font-family:var(--font-head);
}
.btn-primary{background:var(--feature-bg);color:var(--feature-ink)}
.btn-primary:hover{text-decoration:none;background:#31443a}
.btn-secondary{background:var(--paper);color:var(--btn-sec-ink);border:1px solid var(--line-strong)}
.btn-secondary:hover{text-decoration:none;border-color:var(--accent-deep)}

/* ---- home ---- */
.hero{padding:3rem 0 1rem;text-align:center;position:relative;overflow:hidden}
.hero>*{position:relative;z-index:1}
.hero .hero-watermark{
  top:-6px;right:auto;left:50%;transform:translateX(-50%);
  width:min(86%,420px);opacity:.045;
}
.hero-title{font-size:clamp(2.6rem,9vw,4.4rem);line-height:1;margin:0}
.hero-tagline{font-family:var(--font-head);font-size:clamp(1.3rem,4vw,1.7rem);color:var(--ink-soft);margin:.7rem 0 .3rem}
.hero-subtext{color:var(--warm-gray);max-width:42ch;margin:.4rem auto 0}
.prompt{
  font-family:var(--font-head);font-size:1.5rem;color:var(--ink);
  text-align:center;margin:3.4rem 0 1.4rem;
}
/* triage entry (slice 7.5): the guide's question + arrival-states in the reader's
   words → the chambers each routes to. Not a flat grid; the explore door is set
   apart so the guided path never gets an exhaustive menu shoved in front of it. */
.triage{display:grid;gap:1.7rem;margin:1.6rem 0 0}
.triage-state h3{font-family:var(--font-head);font-size:1.12rem;font-weight:500;color:var(--ink);margin:0 0 .65rem}
.triage-doors{display:grid;gap:.6rem}
.triage-door{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  border:1px solid var(--line);border-radius:12px;padding:.95rem 1.2rem;
  color:var(--ink);background:var(--paper);transition:border-color .15s ease;
}
.triage-door:hover{text-decoration:none;border-color:var(--accent)}
.triage-door span{color:var(--accent-deep)}
.triage-explore{border-top:1px solid var(--line);padding-top:1.5rem}
.triage-explore h3{color:var(--ink-soft)}
.home-foot-note{text-align:center;color:var(--warm-gray);font-size:.92rem;margin:2.6rem 0 0}

/* ---- apps page ---- */
.app-group{margin:2.8rem 0}
.app-group h2{font-size:1.5rem;margin:0 0 .2rem}
.group-note{color:var(--ink-soft);margin:.1rem 0 1.1rem;max-width:50ch}
.app-grid{display:grid;grid-template-columns:1fr;gap:1rem}
.app-card{border:1px solid var(--line);border-radius:14px;padding:1.4rem 1.5rem}
.app-card.soon{background:var(--paper-warm)}
.app-card h3{font-size:1.25rem;margin:0 0 .7rem}
.app-card dl{margin:0 0 1.1rem}
.app-card dt{text-transform:uppercase;letter-spacing:.1em;font-size:.66rem;font-weight:600;color:var(--accent-deep);margin-top:.7rem}
.app-card dd{margin:.15rem 0 0;color:var(--ink)}
/* app availability: online tool link + App Store status (live / pending approval) */
.app-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.55rem .9rem;margin-top:.3rem}
.app-store-link{font-family:var(--font-head);font-size:.92rem;color:var(--accent-deep)}
.app-store-pending{
  font-family:var(--font-head);font-size:.8rem;color:var(--warm-gray);
  border:1px dashed var(--line-strong);border-radius:999px;padding:.28rem .8rem;
}
.continue .app-actions{margin-top:1.1rem}

/* ---- generic content (connect / about) ---- */
.lede{font-family:var(--font-body);font-size:1.4rem;color:var(--ink-soft);max-width:36ch;margin:.4rem 0 0}
.block{margin:2.4rem 0}
.block h2{font-size:1.4rem;margin:0 0 .4rem}
.block p{max-width:60ch;color:var(--ink)}
.urgent{border-left:3px solid var(--accent);padding:.4rem 0 .4rem 1.1rem;margin:1.4rem 0}

/* ---- footer ---- */
.site-foot{
  max-width:var(--max);margin:0 auto;padding:2.4rem 1.25rem 3rem;
  border-top:1px solid var(--line);color:var(--warm-gray);font-size:.85rem;
}
.site-foot a{color:var(--warm-gray);text-decoration:underline}

noscript{display:block;background:var(--reassure-bg);border-radius:12px;padding:1.2rem 1.4rem;margin:1.5rem 0}

/* ---- larger screens ---- */
@media (min-width:720px){
  .triage-doors{grid-template-columns:1fr 1fr}
  .app-grid{grid-template-columns:1fr 1fr}
  .hero{padding:4.5rem 0 1.5rem}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* iPhone safe-area: keep the edge containers clear of the notch in landscape */
.nav,main,.site-foot{
  padding-left:max(1.25rem,env(safe-area-inset-left));
  padding-right:max(1.25rem,env(safe-area-inset-right));
}

/* ---- slice 4: calm motion · view transitions · paint perf (all degradable) ---- */

/* deep-link landing offset — QR → /learn/<slug>/#beat lands clear of the nav */
:where(.chapter h2,.chapter-head,.reassure,.thinking,.assessment,.continue,.connect-path,[id]){scroll-margin-top:4.5rem}

/* cross-document threshold morph — progressive; unsupported = hard cut, no JS */
@view-transition{navigation:auto}
.brand{view-transition-name:brand}

/* cheaper paint on the longest section for cheap phones */
.qa{content-visibility:auto;contain-intrinsic-size:0 480px}

/* scroll-driven reveals — ONLY when supported AND motion is welcome; otherwise
   content is simply fully visible (never hidden). Header + reassurance card stay
   solid; only deeper beats settle in as the reader arrives at them. */
@media (prefers-reduced-motion:no-preference){
  @supports (animation-timeline:view()){
    .chapter.movement,.thinking,.chapter.engraving figure,.assessment,.calc,.arrival,.related-doors,.continue,.connect-path{
      animation:beat-in linear both;animation-timeline:view();animation-range:entry 0% entry 34%;
    }
    .reassure li{animation:tick-in linear both;animation-timeline:view();animation-range:entry 2% entry 26%}
    @keyframes beat-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
    @keyframes tick-in{from{opacity:0;transform:translateX(-6px)}to{opacity:1;transform:none}}
  }
}

/* ---- slice 5: instrument calculator. Opt-in (<details>), degrades to a static
   no-JS-legible form + bands reference; clay (not red) for the severe band, in
   keeping with "accent = annotation, not alarm". Zero storage / zero network. ---- */
.calc{
  border:1px solid var(--line-strong);border-radius:14px;
  padding:1.7rem 1.8rem;margin:2.6rem 0 0;background:var(--paper-warm);
}
.calc h2{font-size:1.5rem;margin:.1rem 0 .4rem}
.calc-intro{max-width:58ch;color:var(--ink-soft);margin:.2rem 0 1.1rem}
.calc-disclosure{border-top:1px solid var(--line);padding-top:1rem}
.calc-disclosure>summary{
  cursor:pointer;list-style:none;font-family:var(--font-head);font-size:1.02rem;
  color:var(--accent-deep);display:flex;align-items:center;gap:.4rem;
}
.calc-disclosure>summary::-webkit-details-marker{display:none}
.calc-disclosure>summary::after{content:"+";font-size:1.3rem;line-height:1;margin-left:auto;color:var(--accent-deep)}
.calc-disclosure[open]>summary::after{content:"\2013"}
.calc-hint{font-family:var(--font-body);font-size:.9rem;color:var(--warm-gray);font-style:italic}
.calc-form{margin-top:1.3rem}
.calc-item{margin:0 0 1.5rem}
.calc-item>label{display:block;font-weight:600;color:var(--ink);margin:0 0 .6rem;max-width:54ch}
.calc-slider{display:flex;align-items:center;gap:.7rem}
.calc-slider input[type="range"]{flex:1 1 auto;min-width:0;accent-color:var(--accent-deep);height:1.6rem}
.calc-lo,.calc-hi{font-size:.78rem;color:var(--warm-gray);font-family:var(--font-head);flex:0 0 auto;max-width:9ch}
.calc-hi{text-align:right}
.calc-val{
  display:block;margin:.3rem 0 0;font-family:var(--font-head);font-size:.85rem;
  color:var(--accent-deep);text-align:right;
}
/* choice items (e.g. GERD-Q) — radio groups, not sliders */
.calc-choice{border:0;margin:0 0 1.5rem;padding:0;min-width:0}
.calc-choice legend{font-weight:600;color:var(--ink);margin:0 0 .6rem;padding:0;max-width:54ch}
.calc-opts{display:flex;flex-wrap:wrap;gap:.5rem}
.calc-opt{
  display:inline-flex;align-items:center;gap:.4rem;cursor:pointer;
  border:1px solid var(--line-strong);border-radius:999px;padding:.4rem .85rem;
  font-size:.92rem;color:var(--ink-soft);transition:border-color .15s ease,color .15s ease;
}
.calc-opt input{accent-color:var(--accent-deep);margin:0}
.calc-opt:has(input:checked){border-color:var(--accent-deep);color:var(--ink);background:var(--paper)}
.calc-result{margin:1.6rem 0;min-height:1.5rem}
.calc-noscript{font-size:.92rem;color:var(--warm-gray);max-width:56ch;margin:0}
.calc-form.calc-live .calc-noscript{display:none}
.calc-meter{height:.55rem;border-radius:999px;background:var(--line);overflow:hidden;margin:0 0 .7rem}
.calc-meter-fill{height:100%;border-radius:999px;background:var(--ink-soft);transition:width .25s ease}
.calc-meter[data-band="0"] .calc-meter-fill{background:#7a9a7e}
.calc-meter[data-band="1"] .calc-meter-fill{background:var(--warm-gray)}
.calc-meter[data-band="2"] .calc-meter-fill{background:var(--accent)}
.calc-meter[data-band="3"] .calc-meter-fill{background:var(--accent-deep)}
@media (prefers-reduced-motion:reduce){.calc-meter-fill{transition:none}}
.calc-score{font-size:1.15rem;color:var(--ink);margin:0 0 .3rem}
.calc-score b{font-family:var(--font-head);font-size:1.9rem;font-weight:600;letter-spacing:-.01em}
.calc-of{color:var(--warm-gray);font-size:1rem}
.calc-band-label{font-family:var(--font-head);color:var(--accent-deep)}
.calc-band-body{max-width:58ch;color:var(--ink-soft);margin:.1rem 0 0}
.calc-bands{margin:1.4rem 0 0;padding-top:1.2rem;border-top:1px solid var(--line)}
.calc-band{margin:0 0 .7rem}
.calc-band dt{font-weight:600;color:var(--ink);font-family:var(--font-head);font-size:.95rem}
.calc-range{font-weight:400;color:var(--warm-gray);font-family:var(--font-body);font-style:italic;margin-left:.3rem}
.calc-band dd{margin:.1rem 0 0;max-width:60ch;color:var(--ink-soft);font-size:.96rem}
.calc-closing{max-width:58ch;color:var(--ink);margin:1.4rem 0 0;font-size:.98rem}
.calc-note,.calc-cite{font-size:.82rem;color:var(--warm-gray);max-width:58ch;margin:.8rem 0 0}
.calc-cite{font-style:italic}

/* ---- slice 4 leftover: container queries — the cards adapt to THEIR OWN width,
   so the grammar survives being dropped into a future narrower/wider lane. ---- */
.assessment,.thinking,.calc{container-type:inline-size}
@container (min-width:560px){
  .assess-list,.calc-bands{columns:2;column-gap:2rem}
  .assess-item,.calc-band{break-inside:avoid}
}

/* ---- slice 6: print — "print this page to bring to your appointment". Ink on
   white, no site chrome, collapsed depth expanded so the printout is complete. ---- */
@media print{
  :root{
    --paper:#fff;--paper-warm:#fff;--reassure-bg:#fff;--feature-bg:#fff;
    --feature-ink:#000;--ink:#111;--ink-soft:#333;--warm-gray:#444;
    --line:#ccc;--line-strong:#bbb;--engrave:#444;
  }
  body{background:#fff;color:#111;font-size:12pt;line-height:1.5}
  .nav-links,.hero-watermark,.btn-primary,.btn-secondary,.calc-slider input,.quiet-link{display:none}
  .nav{border-bottom:1px solid #bbb}
  a{color:#111;text-decoration:none}
  .thinking{border:1px solid #999}
  details:not([open])>*:not(summary){display:revert}   /* expand all disclosure depth on paper */
  .calc-disclosure>summary::after,.qa summary::after{content:""}
  .reassure,.assessment,.calc,.continue,.redflags,.thinking,.connect-path,.engraving figure,.calc-band,.assess-item{
    break-inside:avoid;page-break-inside:avoid;
  }
}

/* ---- slice 7.5: "you are here" locator — one dignified line, not a taxonomy trail ---- */
.locator{
  font-family:var(--font-head);font-size:.8rem;letter-spacing:.02em;
  color:var(--warm-gray);margin:.2rem 0 .3rem;
}
.locator a{color:var(--accent-deep)}

/* ---- slice 7: the arrival — the chapter's resolution, the reader changed. The
   "held breath": engraving at presence, the line in its own field of whitespace.
   The same open/close gesture as the chapter-head = the repeated rite of entry/exit. ---- */
.arrival{text-align:center;margin:3.4rem 0 0;padding:2.6rem 0 .5rem;border-top:1px solid var(--line)}
.arrival .engraving-art{display:block;width:min(34%,128px);margin:0 auto 1rem;color:var(--engrave);opacity:.5}
.arrival p{
  font-family:var(--font-body);font-size:1.32rem;line-height:1.6;color:var(--ink);
  max-width:34ch;margin:0 auto;text-wrap:balance;
}
/* unfilled = a visible build-state TODO (the forcing function), never an auto-filled line */
.arrival-todo{text-align:left;border:1px dashed var(--line-strong);border-radius:12px;padding:1.2rem 1.4rem;background:var(--paper-warm)}
.arrival-todo .todo-note{font-family:var(--font-head);font-size:.9rem;color:var(--accent-deep);max-width:60ch;margin:.3rem 0 0}

/* ---- slice 7.5: lateral doors — the guide's 1–2 suggestions, stacked, never a grid ---- */
.related-doors{margin:2.4rem 0 0}
.door{display:block;border:1px solid var(--line);border-radius:12px;padding:1rem 1.2rem;margin:.6rem 0;background:var(--paper);transition:border-color .15s ease}
.door:hover{text-decoration:none;border-color:var(--accent)}
.door-guide{display:block;font-family:var(--font-body);font-size:.95rem;color:var(--ink-soft)}
.door-title{display:block;font-family:var(--font-head);color:var(--accent-deep);margin-top:.2rem}

/* ---- slice 7.5: the anatomical map — navigate by the GI tract itself ---- */
.tract-figure{text-align:center;margin:1rem 0 2rem}
.tract-svg{width:min(64%,200px);height:auto;color:var(--engrave)}
.tract-region{cursor:pointer;transition:color .15s ease;color:var(--engrave)}
.tract-region:hover,.tract-region:focus-visible{color:var(--accent-deep);outline:none}
a:focus-visible .tract-region{color:var(--accent-deep)}
.tract-figure figcaption{font-family:var(--font-body);font-style:italic;color:var(--warm-gray);font-size:.92rem;margin:.7rem auto 0;max-width:40ch}
.map-region{padding:1.2rem 0;border-top:1px solid var(--line)}
.map-region:first-child{border-top:none}
.map-region h2{font-size:1.3rem;margin:0 0 .5rem}
.map-chambers{list-style:none;margin:0;padding:0;display:grid;gap:.45rem}
.map-chambers a{font-size:1.05rem;color:var(--accent-deep)}
.map-empty{color:var(--warm-gray);font-size:.95rem;margin:0}

/* ---- slice 6: per-page QR — quiet, set apart; ink-on-paper for scan contrast ---- */
.page-qr{
  display:flex;align-items:center;gap:1.1rem;
  margin:3rem 0 0;padding-top:1.6rem;border-top:1px solid var(--line);
}
.page-qr-code{flex:0 0 auto;line-height:0}
.page-qr-code svg{width:104px;height:104px;color:var(--ink)}
.page-qr-note{font-family:var(--font-head);font-size:.82rem;color:var(--warm-gray);margin:0;max-width:22ch}
.page-qr-note span{display:block;color:var(--line-strong);margin-top:.2rem}
@media (min-width:720px){
  .tract-map{display:grid;grid-template-columns:220px 1fr;gap:2.4rem;align-items:start}
  .tract-figure{position:sticky;top:1rem;margin-top:0}
}

/* ─── Dark mode — warm dark, designed not inverted. Ported from the /try Visit-Prep
   tool's tested dark palette so the whole site shares one dark register. At EOF so the
   element overrides win the cascade. Three care-points: CTA contrast, scannable QR,
   theme-color (set per-page in prerender doc()). ─── */
@media (prefers-color-scheme: dark){
  :root{
    --paper:#1c1915; --paper-warm:#252019; --reassure-bg:#262019;
    --ink:#f4ede0; --ink-soft:#cdc3b2; --warm-gray:#9a9080;
    --line:#39332a; --line-strong:#4d4538;
    --accent:#dba07a; --accent-deep:#c98a5f; --accent-on-dark:#e6c4a0;
    --feature-bg:#2a3a31; --feature-ink:#eef0e7;
    --btn-sec-ink:#dba07a; --engrave:#5c6b5f;
  }
  /* the primary CTA must pop on a dark page — clay, not the dark-green card colour */
  .btn-primary{background:var(--accent);color:#1b1714}
  .btn-primary:hover{background:var(--accent-on-dark)}
  .thinking{border:1px solid #3a4a40}
  /* keep the per-page QR scannable: dark modules on a light patch even in dark mode */
  .page-qr-code{background:#faf8f2;border-radius:8px;padding:.45rem}
  .page-qr-code svg{color:#1c1915}
}