/*
Theme Name: Well Plate Review
Theme URI: https://well-plate-review.example/
Author: WE Web Design
Author URI: https://example.org/
Description: A well-plate theme for a library of long patient articles on stem cell and regenerative medicine. The front page is a 96-well culture plate: each row is a topic (the therapies; joints, spine and sports; nerves, organs and chronic pain; choosing a clinic; before and after treatment; Middle Tennessee), each filled well one article in the order it was loaded, the empty wells left empty; the plate key under it lists every well by its code and title. An article opens with its well code and row, numbers its sections, sets its Sources list as cited evidence labelled by publisher (PubMed Central, PubMed, U.S. FDA and others, read from each link) and its own Disclaimer as a notice, and ends with the other wells in the same row. Nothing is rated or summarised. Phenol red on bench white; Reddit Sans with Reddit Mono. Categories, tags and author archives are never shown or linked.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 6.7
Requires PHP: 7.4
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: well-plate-review
Tags: blog, two-columns, custom-colors, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, block-patterns, full-site-editing-optional
*/

/* ========================================================================
   1. TOKENS - phenol red on bench white (42/42 text pairs AA, worst 5.50:1)
   ======================================================================== */
:root{
  --paper:#f6f7f8;
  --paper-2:#ebeef1;
  --ink:#14171c;
  --ink-2:#363c45;
  --ink-3:#555d68;
  --rule:#d6dbe1;
  --card:#ffffff;
  --accent:#bc0038;
  --accent-2:#8a0029;
  --warn:#9a4708;
  --warn-soft:#fef3c7;
  --safe:#1f6350;
  --safe-soft:#e0f2fe;
  --link:var(--accent-2);
  --focus:#14171c;

  --sans:'Reddit Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --serif:'Reddit Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --mono:'Reddit Mono',ui-monospace,'SF Mono','Menlo','Consolas',monospace;

  --measure:42rem;
  --measure-wide:64rem;
  --shell:84rem;

  --space-1:.25rem;
  --space-2:.5rem;
  --space-3:.75rem;
  --space-4:1rem;
  --space-5:1.5rem;
  --space-6:2rem;
  --space-7:3rem;
  --space-8:4rem;
  --space-9:6rem;

  --radius-1:.25rem;
  --radius-2:.5rem;
  --radius-3:.75rem;

  --shadow-1:0 1px 2px rgba(26,36,33,.06),0 1px 1px rgba(26,36,33,.04);
  --shadow-2:0 4px 12px rgba(26,36,33,.08),0 2px 4px rgba(26,36,33,.04);

  --z-base:0;
  --z-sticky:10;
  --z-rail:20;
  --z-progress:30;
  --z-topbar:40;
  --z-drawer:50;
  --z-skip:999;

  color-scheme:light;
}
[data-theme="dark"]{
  --paper:#101216;
  --paper-2:#1a1d23;
  --ink:#eceef2;
  --ink-2:#c4c9d2;
  --ink-3:#959dab;
  --rule:#2c313a;
  --card:#15181d;
  --accent:#fc7478;
  --accent-2:#fdc3c5;
  --warn:#fbbf24;
  --warn-soft:#1c1410;
  --safe:#8ccbb6;
  --safe-soft:#0c1f2e;
  --link:var(--accent-2);
  --focus:#ebeef1;
  --shadow-1:0 1px 2px rgba(0,0,0,.4),0 1px 1px rgba(0,0,0,.3);
  --shadow-2:0 4px 12px rgba(0,0,0,.5),0 2px 4px rgba(0,0,0,.4);
  color-scheme:dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#101216;
    --paper-2:#1a1d23;
    --ink:#eceef2;
    --ink-2:#c4c9d2;
    --ink-3:#959dab;
    --rule:#2c313a;
    --card:#15181d;
    --accent:#fc7478;
    --accent-2:#fdc3c5;
    --warn:#fbbf24;
    --warn-soft:#1c1410;
    --safe:#8ccbb6;
    --safe-soft:#0c1f2e;
    --link:var(--accent-2);
    --focus:#ebeef1;
    --shadow-1:0 1px 2px rgba(0,0,0,.4),0 1px 1px rgba(0,0,0,.3);
    --shadow-2:0 4px 12px rgba(0,0,0,.5),0 2px 4px rgba(0,0,0,.4);
    color-scheme:dark;
  }
}

/* ========================================================================
   2. RESET + BASE
   ======================================================================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:5rem}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:1.0625rem;
  line-height:1.7;
  font-feature-settings:'ss01','kern','liga';
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,picture,video,canvas,svg{display:block;max-width:100%;height:auto}
img{aspect-ratio:attr(width)/attr(height)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
a{color:var(--link);text-underline-offset:.18em;text-decoration-thickness:.06em}
a:hover{text-decoration-thickness:.12em}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--focus);
  outline-offset:2px;
  border-radius:var(--radius-1);
}
hr{border:0;border-top:1px solid var(--rule);margin:var(--space-6) 0}
::selection{background:var(--accent);color:var(--paper)}

/* ========================================================================
   3. SKIP LINK (WD-9 — focus override mandatory)
   ======================================================================== */
.skip-link{
  position:absolute;
  left:-9999px;top:-9999px;
  width:auto;height:auto;
  clip:auto;clip-path:none;overflow:visible;
  background:var(--ink);
  color:var(--paper);
  padding:.75rem 1.25rem;
  border-radius:var(--radius-2);
  font-weight:600;
  z-index:var(--z-skip);
  text-decoration:none;
}
.skip-link:focus{left:1rem;top:1rem}

/* ========================================================================
   4. TYPOGRAPHY (WD-10, WD-14)
   ======================================================================== */
h1,h2,h3,h4,h5,h6{
  font-family:var(--serif);
  font-weight:600;
  line-height:1.2;
  letter-spacing:-.01em;
  margin:2.4rem 0 .8rem;
  color:var(--ink);
  text-wrap:balance;
}
h1{font-size:clamp(2rem,4.2vw,2.75rem);line-height:1.15;letter-spacing:-.02em;margin-top:0}
h2{font-size:clamp(1.5rem,2.6vw,1.875rem)}
h3{font-size:clamp(1.25rem,2vw,1.4rem)}
h4{font-size:1.125rem}
h5,h6{font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-2)}
p{margin:0 0 1.1rem;text-wrap:pretty}
strong,b{font-weight:600;color:var(--ink)}
em,i{font-style:italic}
small{font-size:.8125rem;color:var(--ink-2)}
blockquote{
  border-left:3px solid var(--accent);
  margin:1.6rem 0;
  padding:.4rem 0 .4rem 1.2rem;
  font-family:var(--serif);
  font-size:1.125rem;
  font-style:italic;
  color:var(--ink-2);
}
blockquote cite{display:block;font-style:normal;font-size:.875rem;color:var(--ink-3);margin-top:.4rem}
code,kbd,pre,samp{font-family:ui-monospace,'SF Mono','Menlo','Consolas',monospace;font-size:.9em}
:not(pre)>code{background:var(--paper-2);padding:.15em .4em;border-radius:var(--radius-1);color:var(--ink)}
pre{
  background:var(--paper-2);
  border:1px solid var(--rule);
  border-radius:var(--radius-2);
  padding:1rem 1.2rem;
  overflow-x:auto;
  font-size:.875rem;
  line-height:1.55;
  margin:1.5rem 0;
}
ul,ol{margin:0 0 1.2rem;padding-left:1.4rem}
li{margin:.4rem 0}
ul li::marker{color:var(--accent)}
dl{margin:1.2rem 0}
dt{font-weight:600;margin-top:.8rem}
dd{margin:0 0 .4rem 1.2rem;color:var(--ink-2)}
table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.95rem}
th,td{padding:.6rem .8rem;text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}
th{font-weight:600;color:var(--ink);background:var(--paper-2)}
tbody tr:hover{background:var(--paper-2)}
figure{margin:1.6rem 0}
figcaption{font-size:.875rem;color:var(--ink-3);text-align:center;margin-top:.5rem;font-style:italic}

/* ========================================================================
   5. LAYOUT — page shell
   ======================================================================== */
.page-shell{min-height:100vh;display:flex;flex-direction:column}
.site-main{flex:1 0 auto}
.wrap{max-width:var(--shell);margin:0 auto;padding:0 clamp(1rem,4vw,2rem)}

/* ========================================================================
   6. TOPBAR (WD-7 touch 44+)
   ======================================================================== */
.topbar{
  position:sticky;top:0;z-index:var(--z-topbar);
  background:color-mix(in oklab,var(--paper) 92%,transparent);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--rule);
}
.topbar__inner{
  max-width:var(--shell);
  margin:0 auto;
  padding:.6rem clamp(1rem,4vw,2rem);
  display:flex;align-items:center;gap:1rem;
  min-height:60px;
}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand__mark{
  width:34px;height:34px;border-radius:50%;
  background:var(--accent);
  color:var(--paper);
  font-family:var(--serif);
  font-weight:600;
  font-size:1.05rem;
  display:grid;place-items:center;
  letter-spacing:-.02em;
}
.brand__name{font-family:var(--serif);font-weight:600;font-size:1.125rem;letter-spacing:-.01em}
.topbar__nav{display:none;gap:1.2rem;margin-left:auto;font-size:.95rem;align-items:center}
.topbar__nav a{color:var(--ink-2);text-decoration:none;padding:.6rem 0;min-height:44px;display:inline-flex;align-items:center}
.topbar__nav a:hover,.topbar__nav a[aria-current="page"]{color:var(--ink)}

/* ========================================================================
   7. SEARCH INPUT
   ======================================================================== */
.search-form{position:relative;width:100%}
.search-form__input{
  width:100%;
  background:var(--paper-2);
  border:1px solid var(--rule);
  border-radius:999px;
  padding:.55rem 1rem .55rem 2.4rem;
  font-size:.925rem;
  min-height:44px;
  color:var(--ink);
}
.search-form__input::placeholder{color:var(--ink-3)}
.search-form__icon{position:absolute;left:.85rem;top:50%;transform:translateY(-50%);color:var(--ink-3);pointer-events:none}
.search-form__submit{position:absolute;right:.4rem;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;display:grid;place-items:center;color:var(--ink-2);background:transparent}
.search-form__submit:hover{color:var(--ink);background:var(--paper)}

/* ========================================================================
   8. READING PROGRESS BAR (WD-16 reduced-motion respect)
   ======================================================================== */
.reading-progress{
  position:fixed;top:0;left:0;right:0;height:3px;
  z-index:var(--z-progress);
  background:transparent;
  pointer-events:none;
}
.reading-progress__bar{
  display:block;height:100%;width:0;
  background:var(--accent);
  transition:width .12s linear;
  transform-origin:left;
}
@media (prefers-reduced-motion:reduce){
  .reading-progress__bar{transition:none}
}

/* ========================================================================
   9-10. (front-page hero + magazine grid removed)
   The front page is the plate (section 28); every listing screen uses the
   same .plate-head / .guide-list pair.
   ======================================================================== */

/* ========================================================================
   11. ARTICLE — two-column long-form
   ======================================================================== */
.article-shell{
  max-width:var(--measure-wide);
  margin:0 auto;
  padding:clamp(2rem,4vw,3rem) clamp(1rem,4vw,2rem);
}
.article-main{min-width:0;max-width:46rem;margin-inline:auto}
.article-main--page{margin-inline:auto;padding-block:clamp(2.5rem,5vw,4rem)}

/* ========================================================================
   11b. COLLAPSIBLE SUMMARY CARD (optional — sits at top of article)
   ======================================================================== */
.tldr-card{
  background:var(--card);
  border:1px solid var(--rule);
  border-left:4px solid var(--accent);
  border-radius:var(--radius-3);
  padding:1.2rem 1.4rem;
  margin:0 0 2rem;
  box-shadow:var(--shadow-1);
}
.tldr-card[open] summary{margin-bottom:.8rem}
.tldr-card summary{
  cursor:pointer;
  display:flex;align-items:center;gap:.6rem;
  list-style:none;
  font-family:var(--serif);
  font-size:1rem;
  font-weight:600;
  color:var(--accent-2);
  letter-spacing:-.005em;
  min-height:32px;
}
.tldr-card summary::-webkit-details-marker{display:none}
.tldr-card summary::before{
  content:'';
  width:0;height:0;
  border-left:5px solid currentColor;
  border-top:4px solid transparent;
  border-bottom:4px solid transparent;
  transition:transform .15s ease;
  flex-shrink:0;
}
.tldr-card[open] summary::before{transform:rotate(90deg)}
.tldr-card__label{
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.72rem;
  font-weight:700;
  color:var(--accent);
  margin-right:auto;
}
.tldr-card p,.tldr-card ul,.tldr-card ol{
  font-size:.985rem;
  line-height:1.65;
  color:var(--ink-2);
  margin:0 0 .8rem;
}
.tldr-card p:last-child,.tldr-card ul:last-child,.tldr-card ol:last-child{margin-bottom:0}
@media (prefers-reduced-motion:reduce){
  .tldr-card summary::before{transition:none}
}

/* ========================================================================
   11c. FOOTNOTE-STYLE REFERENCES (sourced citations, bottom of article)
   ======================================================================== */
.article-refs{
  margin:3rem 0 0;
  padding:1.6rem 0 0;
  border-top:2px solid var(--accent);
}
.article-refs__heading{
  font-family:var(--serif);
  font-size:1.05rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.1em;
  margin:0 0 1rem;
  color:var(--ink);
}
.article-refs__list{
  list-style:none;
  margin:0;padding:0;
  counter-reset:refs;
  font-size:.9rem;
  line-height:1.55;
}
.article-refs__list li{
  counter-increment:refs;
  display:flex;
  gap:.6rem;
  margin:.6rem 0;
  color:var(--ink-2);
}
.article-refs__list li::before{
  content:counter(refs);
  font-family:var(--mono);
  font-size:.8rem;
  font-weight:600;
  color:var(--accent-2);
  min-width:1.6rem;
  text-align:right;
  flex-shrink:0;
}
.article-refs__list a{color:var(--link);text-underline-offset:.16em;word-break:break-word}
.article-refs__source{font-style:italic;color:var(--ink-3)}

/* In-prose footnote callout */
.prose sup.fn-ref{
  font-family:var(--mono);
  font-size:.72em;
  font-weight:600;
  vertical-align:super;
  line-height:0;
}
.prose sup.fn-ref a{
  color:var(--accent-2);
  text-decoration:none;
  padding:0 .15em;
  background:var(--paper-2);
  border-radius:.2em;
}
.prose sup.fn-ref a:hover{background:var(--accent);color:var(--paper)}

/* ========================================================================
   11d. INLINE RELATED CARD (in-flow related card)
   ======================================================================== */
.inline-related-card{
  background:var(--card);
  border:1px solid var(--rule);
  border-left:3px solid var(--accent);
  border-radius:var(--radius-3);
  padding:1.1rem 1.3rem;
  margin:2rem 0;
  display:flex;flex-direction:column;gap:.4rem;
}
.inline-related-card__label{
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.72rem;
  font-weight:700;
  color:var(--ink-3);
}
.inline-related-card__title{font-family:var(--serif);font-size:1.05rem;line-height:1.3;margin:0;letter-spacing:-.01em}
.inline-related-card__title a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--rule)}
.inline-related-card__title a:hover{color:var(--accent-2);border-bottom-color:var(--accent)}
.inline-related-card__why{font-size:.95rem;color:var(--ink-2);margin:.2rem 0 0;line-height:1.55}

/* Decision/comparison card — two options side by side */
.diy-vs-pro{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  border:1px solid var(--rule);
  border-radius:var(--radius-3);
  overflow:hidden;
  margin:2rem 0;
}
@media (min-width:720px){.diy-vs-pro{grid-template-columns:1fr 1fr}}
.diy-vs-pro__col{padding:1.2rem 1.4rem;display:flex;flex-direction:column;gap:.5rem}
.diy-vs-pro__col--safe{background:var(--safe-soft);border-bottom:1px solid var(--rule)}
.diy-vs-pro__col--pro{background:var(--warn-soft)}
@media (min-width:720px){
  .diy-vs-pro__col--safe{border-bottom:0;border-right:1px solid var(--rule)}
}
.diy-vs-pro__label{
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:.72rem;
  font-weight:700;
}
.diy-vs-pro__col--safe .diy-vs-pro__label{color:var(--safe)}
.diy-vs-pro__col--pro .diy-vs-pro__label{color:var(--warn)}
.diy-vs-pro__title{font-family:var(--serif);font-size:1.05rem;font-weight:600;margin:0;color:var(--ink)}
.diy-vs-pro__body{font-size:.925rem;color:var(--ink-2);line-height:1.55;margin:0}
.diy-vs-pro__body ul{margin:.4rem 0 0;padding-left:1.2rem}
.diy-vs-pro__body li{margin:.2rem 0}

/* ========================================================================
   12. ARTICLE HEAD
   ======================================================================== */
.post__header{margin-bottom:2rem}
.post__kicker{
  display:inline-block;
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.78rem;
  font-weight:600;
  color:var(--accent-2);
  text-decoration:none;
  margin-bottom:.8rem;
}
.post__kicker:hover{color:var(--accent)}
.post__title{
  font-family:var(--serif);
  font-size:clamp(2rem,4vw,2.75rem);
  line-height:1.12;
  letter-spacing:-.02em;
  margin:0 0 1rem;
  text-wrap:balance;
}
.post__byline{
  display:flex;flex-wrap:wrap;gap:1rem 1.4rem;
  font-size:.875rem;color:var(--ink-3);
  margin:0 0 1.4rem;
  padding:0;
}
.post__byline > span{display:inline-flex;align-items:baseline;gap:.4rem}
.post__byline .label{
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:.7rem;
  font-weight:600;
  color:var(--ink-3);
}
.post__byline time{color:var(--ink-2)}
.post__featured-img{margin:0 0 2rem;border-radius:var(--radius-3);overflow:hidden;border:1px solid var(--rule)}
.post__featured-img img{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover}

/* ========================================================================
   13. PROSE — body content (long-form readability)
   ======================================================================== */
.prose{font-size:1.0625rem;line-height:1.75}
/* A raw URL or a long unbroken string in the content must wrap instead of
   widening the page on a phone (tema 53: a references list of raw URLs pushed
   the page to 473px at 320). Tables are excluded - they scroll in their region. */
.prose :is(p,li,dd,dt,blockquote,figcaption,h2,h3,h4){overflow-wrap:anywhere}
.prose > * + *{margin-top:0}
.prose p{margin:0 0 1.2rem}
.prose h2{margin:2.6rem 0 .9rem;scroll-margin-top:5rem;font-size:clamp(1.4rem,2.4vw,1.75rem)}
.prose h3{margin:2rem 0 .7rem;scroll-margin-top:5rem;font-size:clamp(1.15rem,1.8vw,1.3rem)}
.prose h2:first-child,.prose h3:first-child{margin-top:0}
.prose ul,.prose ol{margin:0 0 1.2rem;padding-left:1.6rem}
.prose li{margin:.5rem 0}
.prose img{border-radius:var(--radius-2);border:1px solid var(--rule);margin:1.6rem 0}
.prose a{color:var(--link)}
.prose a:hover{color:var(--accent)}

/* ========================================================================
   14. TL;DR CARD (block pattern)
   ======================================================================== */
.tldr{
  background:var(--card);
  border:1px solid var(--rule);
  border-left:3px solid var(--accent);
  border-radius:var(--radius-3);
  padding:1.2rem 1.4rem;
  margin:0 0 2rem;
}
.tldr__label{
  display:block;
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.72rem;
  font-weight:700;
  color:var(--accent-2);
  margin-bottom:.5rem;
}
.tldr p{margin:0 0 .6rem;font-size:.985rem;line-height:1.6;color:var(--ink-2)}
.tldr p:last-child{margin-bottom:0}
.tldr ul,.tldr ol{margin:.4rem 0 0;padding-left:1.2rem;font-size:.975rem;color:var(--ink-2)}

/* ========================================================================
   15. LEGAL DISCLAIMER CALLOUT
   ======================================================================== */
.legal-disclaimer{
  background:var(--warn-soft);
  border:1px solid color-mix(in oklab,var(--warn) 35%,var(--rule));
  border-radius:var(--radius-3);
  padding:1.1rem 1.3rem;
  margin:0 0 2rem;
  font-size:.925rem;
  line-height:1.55;
  color:var(--ink-2);
}
.legal-disclaimer__label{
  display:flex;align-items:center;gap:.5rem;
  font-weight:700;
  color:var(--warn);
  margin-bottom:.4rem;
  font-size:.85rem;
  letter-spacing:.04em;
}
.legal-disclaimer__label::before{
  content:'';
  display:inline-block;
  width:14px;height:14px;
  background:currentColor;
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'><path d='M12 2L1 21h22L12 2zm0 6l7.5 13h-15L12 8zm-1 4v4h2v-4h-2zm0 5v2h2v-2h-2z'/></svg>") no-repeat center / contain;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'><path d='M12 2L1 21h22L12 2zm0 6l7.5 13h-15L12 8zm-1 4v4h2v-4h-2zm0 5v2h2v-2h-2z'/></svg>") no-repeat center / contain;
  flex-shrink:0;
}
.legal-disclaimer p{margin:0 0 .5rem}
.legal-disclaimer p:last-child{margin-bottom:0}

/* ========================================================================
   16. CALLOUT (general block pattern, info/warning)
   ======================================================================== */
.callout{
  background:var(--paper-2);
  border:1px solid var(--rule);
  border-left:3px solid var(--accent);
  border-radius:var(--radius-3);
  padding:1rem 1.2rem;
  margin:1.6rem 0;
  font-size:.975rem;
}
.callout.is-style-warning{
  border-left-color:var(--warn);
  background:var(--warn-soft);
}
.callout p{margin:0 0 .6rem}
.callout p:last-child{margin-bottom:0}

/* ========================================================================
   17. META RAIL (right column on article)
   ======================================================================== */
.meta-rail__group{margin-bottom:1.4rem;padding-bottom:1.4rem;border-bottom:1px solid var(--rule)}
.meta-rail__group:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.meta-rail__label{
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.72rem;
  font-weight:700;
  color:var(--ink-3);
  margin:0 0 .55rem;
}
.meta-rail__value{font-size:.925rem;color:var(--ink-2);margin:0;line-height:1.5}
.meta-rail__value strong{color:var(--ink);font-weight:600}

/* ========================================================================
   18. TOC (table of contents — scrollspy)
   ======================================================================== */
.toc__list{list-style:none;margin:0;padding:0;font-size:.9rem;line-height:1.4}
.toc__list li{margin:.35rem 0}
.toc__list a{
  color:var(--ink-2);
  text-decoration:none;
  display:block;
  padding:.2rem .55rem;
  border-left:2px solid transparent;
  border-radius:0 var(--radius-1) var(--radius-1) 0;
  transition:color .15s ease,border-color .15s ease,background .15s ease;
}
.toc__list a:hover{color:var(--ink);background:var(--paper-2)}
.toc__list a.is-active{
  color:var(--accent-2);
  border-left-color:var(--accent);
  background:var(--paper-2);
  font-weight:600;
}
@media (prefers-reduced-motion:reduce){
  .toc__list a{transition:none}
}
.toc__list .toc-h3{padding-left:.9rem;font-size:.85rem;color:var(--ink-3)}
.toc__list .toc-h3 a{padding-left:.9rem}

/* ========================================================================
   19. MOBILE TOC DRAWER
   ======================================================================== */
.inline-toc{
  background:var(--paper-2);
  border:1px solid var(--rule);
  border-radius:var(--radius-3);
  padding:.8rem 1.2rem;
  margin:0 0 2rem;
}
.inline-toc summary{
  cursor:pointer;
  font-weight:600;
  font-size:.95rem;
  color:var(--ink);
  list-style:none;
  display:flex;align-items:center;gap:.5rem;
  padding:.3rem 0;
  min-height:32px;
}
.inline-toc summary::-webkit-details-marker{display:none}
.inline-toc summary::before{
  content:'';
  display:inline-block;
  width:0;height:0;
  border-left:5px solid currentColor;
  border-top:4px solid transparent;
  border-bottom:4px solid transparent;
  transition:transform .15s ease;
  flex-shrink:0;
}
.inline-toc[open] summary::before{transform:rotate(90deg)}
.inline-toc .toc__list{margin-top:.6rem;padding-left:.4rem}
@media (prefers-reduced-motion:reduce){
  .inline-toc summary::before{transition:none}
}

.toc-drawer-toggle{
  display:inline-flex;align-items:center;gap:.5rem;
  background:var(--paper-2);
  border:1px solid var(--rule);
  border-radius:999px;
  padding:.5rem 1rem;
  font-size:.9rem;
  color:var(--ink-2);
  margin:0 0 1rem;
  min-height:44px;
}
.toc-drawer-toggle:hover{color:var(--ink);background:var(--card)}
@media (min-width:1080px){
  .toc-drawer-toggle{display:none}
}
.toc-drawer{
  position:fixed;
  inset:0;
  z-index:var(--z-drawer);
  background:rgba(26,36,33,.5);
  display:none;
  padding:5rem 1rem 1rem;
}
.toc-drawer[data-open="true"]{display:block}
.toc-drawer__panel{
  background:var(--paper);
  border:1px solid var(--rule);
  border-radius:var(--radius-3);
  padding:1.4rem;
  max-width:32rem;
  margin:0 auto;
  max-height:80vh;
  overflow:auto;
}
.toc-drawer__close{
  float:right;
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:var(--radius-2);
  color:var(--ink-2);
}
.toc-drawer__close:hover{color:var(--ink);background:var(--paper-2)}

/* ========================================================================
   20. PAGINATION
   ======================================================================== */
.pagination{
  display:flex;flex-wrap:wrap;justify-content:center;gap:.4rem;
  margin:3rem 0 2rem;
  padding-top:1.5rem;
  border-top:1px solid var(--rule);
}
.pagination a,.pagination span{
  display:inline-grid;place-items:center;
  min-width:44px;height:44px;
  padding:0 .8rem;
  border-radius:var(--radius-2);
  font-size:.95rem;
  color:var(--ink-2);
  text-decoration:none;
  border:1px solid var(--rule);
}
.pagination a:hover{color:var(--ink);background:var(--paper-2);border-color:var(--ink-3)}
.pagination .current{background:var(--accent);color:var(--paper);border-color:var(--accent);font-weight:600}
.pagination .dots{border:0;background:transparent}

/* ========================================================================
   21. POST NAV (prev / next)
   ======================================================================== */
.post-nav{
  display:grid;
  grid-template-columns:1fr;
  gap:1rem;
  margin:3rem 0 0;
  padding-top:1.6rem;
  border-top:1px solid var(--rule);
}
@media (min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav a{
  display:block;
  padding:1rem 1.2rem;
  background:var(--card);
  border:1px solid var(--rule);
  border-radius:var(--radius-3);
  text-decoration:none;
  color:var(--ink);
  transition:border-color .15s ease;
}
.post-nav a:hover{border-color:var(--accent)}
.post-nav__label{
  display:block;
  text-transform:uppercase;
  letter-spacing:.1em;
  font-size:.72rem;
  font-weight:600;
  color:var(--ink-3);
  margin-bottom:.3rem;
}
.post-nav__title{font-family:var(--serif);font-size:1.025rem;line-height:1.3;color:var(--ink)}
.post-nav__next{text-align:right}

/* ========================================================================
   22. FOOTER
   ======================================================================== */
.site-footer{
  border-top:1px solid var(--rule);
  padding:clamp(2.5rem,5vw,4rem) 0 clamp(1.5rem,3vw,2.5rem);
  margin-top:clamp(3rem,6vw,5rem);
  font-size:.925rem;
  color:var(--ink-2);
}
.site-footer__top{
  display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:1.6rem;
  margin-bottom:2rem;
  padding-bottom:1.6rem;
  border-bottom:1px solid var(--rule);
}
.site-footer__brand{display:flex;flex-direction:column;gap:.4rem;max-width:24rem}
.site-footer__name{font-family:var(--serif);font-weight:600;font-size:1.05rem;color:var(--ink)}
.site-footer__tag{color:var(--ink-3);font-size:.9rem;line-height:1.5;margin:0}
.site-footer__links{display:flex;flex-wrap:wrap;gap:1.4rem;font-size:.9rem}
.site-footer__links a{color:var(--ink-2);text-decoration:none;min-height:44px;display:inline-flex;align-items:center}
.site-footer__links a:hover{color:var(--ink)}
.site-footer__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.825rem;color:var(--ink-3)}
.site-footer__disclaimer{max-width:50rem;line-height:1.55;color:var(--ink-3);font-size:.825rem;margin:1rem 0 0}

/* ========================================================================
   23. COMMENTS
   ======================================================================== */
.comments-area{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--rule)}
.comments-title{font-family:var(--serif);font-size:1.4rem;margin:0 0 1.4rem}
.comment-list{list-style:none;margin:0;padding:0}
.comment-list li{margin:0 0 1.4rem;padding:1rem 1.2rem;background:var(--card);border:1px solid var(--rule);border-radius:var(--radius-3)}
.comment-meta{font-size:.875rem;color:var(--ink-3);margin-bottom:.5rem}
.comment-meta cite{font-style:normal;color:var(--ink);font-weight:600}
.comment-form label{display:block;font-size:.875rem;margin:.8rem 0 .3rem;color:var(--ink-2);font-weight:500}
.comment-form input[type="text"],.comment-form input[type="email"],.comment-form input[type="url"],.comment-form textarea{
  width:100%;
  background:var(--paper-2);
  border:1px solid var(--rule);
  border-radius:var(--radius-2);
  padding:.6rem .8rem;
  font:inherit;
  color:var(--ink);
  min-height:44px;
}
.comment-form textarea{min-height:8rem;resize:vertical}
.form-submit input[type="submit"],.button{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent);
  color:var(--paper);
  border:0;
  padding:.7rem 1.4rem;
  border-radius:var(--radius-2);
  font:inherit;
  font-weight:600;
  cursor:pointer;
  min-height:44px;
  min-width:44px;
  transition:background .15s ease;
}
.form-submit input[type="submit"]:hover,.button:hover{background:var(--accent-2)}
@media (prefers-reduced-motion:reduce){
  .form-submit input[type="submit"],.button{transition:none}
}

/* ========================================================================
   24. 404 / SEARCH
   ======================================================================== */
.error-404,.search-results-head{padding:clamp(3rem,6vw,5rem) 0;text-align:center}
.error-404__code{font-family:var(--serif);font-size:clamp(4rem,12vw,7rem);line-height:1;color:var(--accent);letter-spacing:-.04em;margin:0}
.error-404__title{font-family:var(--serif);font-size:clamp(1.6rem,3vw,2rem);margin:.6rem 0 1rem}
.error-404__lede{color:var(--ink-2);max-width:36rem;margin:0 auto 1.4rem;line-height:1.6}
.error-404__suggest{max-width:34rem;margin:1.6rem auto 0;text-align:left}

/* ========================================================================
   25. WP HELPERS
   ======================================================================== */
.screen-reader-text{position:absolute!important;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden;padding:0;margin:-1px;border:0;word-wrap:normal!important}
.alignleft{float:left;margin:.5rem 1.4rem 1rem 0}
.alignright{float:right;margin:.5rem 0 1rem 1.4rem}
.aligncenter{margin-left:auto;margin-right:auto;display:block}
.alignwide{max-width:min(var(--measure-wide),100%);margin-left:auto;margin-right:auto}
.alignfull{max-width:100%;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);width:100vw}
.wp-block-image img{border-radius:var(--radius-2)}
.wp-block-quote{border-left:3px solid var(--accent);padding:.4rem 0 .4rem 1.2rem;margin:1.6rem 0;font-family:var(--serif);font-style:italic;color:var(--ink-2)}
.wp-block-pullquote{border:0;padding:1.5rem 1.5rem;text-align:left;font-family:var(--serif);font-size:1.3rem;line-height:1.4}
.wp-block-table{margin:1.5rem 0}
.wp-block-table table{border:1px solid var(--rule)}

/* ========================================================================
   28. THE PLATE - front page (96-well plate, plate key)
   ======================================================================== */
.plate-head{padding:clamp(2.4rem,5vw,3.6rem) 0 clamp(1.4rem,3vw,2.2rem);border-bottom:1px solid var(--rule)}
.plate-head__eyebrow{
  margin:0 0 .7rem;
  font-family:var(--mono);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
}
.plate-head__title{
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(2rem,4.6vw,3.1rem);
  line-height:1.08;
  letter-spacing:-.025em;
  margin:0 0 .9rem;
  max-width:24ch;
  text-wrap:balance;
}
.plate-head__lede{margin:0 0 .6rem;max-width:58ch;color:var(--ink-2);font-size:1.06rem}
.plate-head__tally{margin:.4rem 0 0;color:var(--ink-3);font-size:.95rem}
.plate-head__tally strong{color:var(--ink);font-variant-numeric:tabular-nums}

.bench{background:var(--paper-2);border-bottom:1px solid var(--rule);scroll-margin-top:4.5rem}
.bench__inner{padding-top:clamp(1.6rem,4vw,2.6rem);padding-bottom:clamp(1.6rem,4vw,2.6rem)}
.bench__label{
  margin:0 0 .9rem;
  font-family:var(--mono);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-2);
}
.plate{margin:0}
.plate__body{
  background:var(--card);
  border:1px solid var(--rule);
  border-radius:14px;
  padding:clamp(.7rem,2vw,1.4rem) clamp(.6rem,2vw,1.4rem) clamp(.9rem,2vw,1.4rem);
  box-shadow:var(--shadow-2);
  clip-path:polygon(1.4rem 0,100% 0,100% 100%,0 100%,0 1.4rem);
  display:grid;
  gap:clamp(.25rem,.9vw,.5rem);
}
.plate__row{display:grid;grid-template-columns:1.4rem repeat(12,minmax(0,1fr));gap:clamp(.2rem,.8vw,.5rem);align-items:center}
.plate__topic{display:none}
@media (min-width:64rem){
  .plate__row{grid-template-columns:1.6rem repeat(12,minmax(0,2.6rem)) minmax(10rem,1fr);column-gap:.55rem}
  .plate__topic{display:block;padding-left:.8rem;font-size:.85rem;font-weight:600;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .plate__row--cols::after{content:''}
}
.plate__letter,.plate__col{font-family:var(--mono);font-size:.72rem;font-weight:600;color:var(--ink-3);text-align:center}
.well{
  display:block;
  aspect-ratio:1;
  border-radius:50%;
  background:radial-gradient(circle at 35% 30%,color-mix(in oklab,var(--accent) 55%,var(--card)) 0 18%,var(--accent) 62%,var(--accent-2) 100%);
  box-shadow:inset 0 0 0 2px color-mix(in oklab,var(--accent-2) 60%,transparent);
  transition:transform .12s ease,box-shadow .12s ease;
}
a.well:hover{transform:scale(1.14);box-shadow:inset 0 0 0 2px var(--accent-2),0 0 0 3px color-mix(in oklab,var(--accent) 30%,transparent)}
.well--empty{background:var(--paper-2);box-shadow:inset 0 0 0 1.5px var(--rule)}
.plate__readout{min-height:1.5em;margin:.8rem 0 0;font-family:var(--mono);font-size:.85rem;color:var(--ink-2)}
.plate__readout[hidden]{display:none}
@media (hover:none){.plate__readout{display:none}}
.plate__caption{margin:.5rem 0 0;font-size:.85rem;line-height:1.5;color:var(--ink-3);text-align:left}

/* the key: the way in for keyboards, screen readers and phones */
.plate-key{padding-top:clamp(1.6rem,4vw,2.6rem);padding-bottom:clamp(2.4rem,5vw,4rem)}
.key-row{margin-top:2rem;border-top:3px solid var(--ink);scroll-margin-top:4.5rem}
.key-row:first-child{margin-top:0}
.key-row__title{display:flex;flex-wrap:wrap;align-items:center;gap:.3rem .9rem;margin:0;padding:.75rem 0 .6rem;border-bottom:1px solid var(--rule);font-size:clamp(1.2rem,2.4vw,1.5rem);line-height:1.2}
.key-row__letter{
  display:inline-grid;place-items:center;
  width:2.1rem;height:2.1rem;
  border-radius:50%;
  background:var(--accent);
  color:var(--card);
  font-family:var(--mono);
  font-size:1rem;
  font-weight:600;
}
.key-row__topic{font-weight:700}
.key-row__cont{font-weight:400;color:var(--ink-3);font-size:.8em}
.key-row__n{margin-left:auto;font-size:.85rem;font-weight:400;color:var(--ink-3);font-variant-numeric:tabular-nums}
.key-row__list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,22rem),1fr));column-gap:2rem}
.key-row__list li{margin:0;border-bottom:1px solid var(--rule)}
.key-row__link{display:flex;align-items:baseline;gap:.8rem;min-height:44px;padding:.55rem 0;color:var(--ink);text-decoration:none;line-height:1.35}
.key-row__code{flex:0 0 2.4rem;font-family:var(--mono);font-size:.82rem;font-weight:600;color:var(--accent)}
.key-row__name{min-width:0}
.key-row__link:hover .key-row__name{color:var(--accent-2);text-decoration:underline;text-underline-offset:.16em}

/* rows on archive, search, 404 and paged screens */
.guide-index{padding:clamp(2rem,4vw,3rem) 0}
.guide-list{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.guide-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.6rem 2rem;align-items:start;padding:1.1rem 0;border-bottom:1px solid var(--rule)}
.guide-row__main{min-width:0}
.guide-row__place{margin:0 0 .25rem;font-size:.75rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.guide-row__code{font-family:var(--mono);color:var(--accent)}
.guide-row__title{font-weight:700;font-size:1.14rem;line-height:1.3;margin:0 0 .35rem}
.guide-row__title a{color:var(--ink);text-decoration:none}
.guide-row__title a:hover{color:var(--accent-2);text-decoration:underline;text-underline-offset:.16em}
.guide-row__excerpt{margin:0;color:var(--ink-2);font-size:.94rem;line-height:1.6;max-width:64ch}
.guide-row__time{margin:0;font-size:.84rem;color:var(--ink-3);white-space:nowrap}
@media (max-width:44rem){.guide-row{grid-template-columns:minmax(0,1fr)}}

/* ========================================================================
   29. SAMPLE SHEET - well code, numbered sections, cited evidence, notice
   ======================================================================== */
.sample__head{border-bottom:1px solid var(--rule)}
.sample__head-inner{padding-top:clamp(2rem,5vw,3.4rem);padding-bottom:clamp(1.4rem,3vw,2rem)}
.sample__eyebrow{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem .8rem;margin:0 0 .9rem}
.sample__code{
  display:inline-flex;align-items:center;
  padding:.2rem .6rem;
  border:1.5px solid var(--accent);
  border-radius:999px;
  font-family:var(--mono);
  font-size:.8rem;
  font-weight:600;
  color:var(--accent);
}
.sample__row{font-size:.85rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.sample__title{
  margin:0 0 1rem;
  max-width:28ch;
  font-size:clamp(1.9rem,4.4vw,2.9rem);
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.02em;
  text-wrap:balance;
  overflow-wrap:break-word;
}
.sample__byline{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;margin:0;font-size:.875rem;color:var(--ink-3)}
.sample__byline > span{display:inline-flex;align-items:baseline;gap:.4rem}
.sample__byline .label{font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.sample__byline time{color:var(--ink-2)}

.sample__body{max-width:48rem;padding-top:clamp(1.6rem,4vw,2.4rem);padding-bottom:clamp(2.4rem,5vw,4rem)}

.sample-toc{margin:0 0 1.8rem;border:1px solid var(--rule);border-radius:8px;background:var(--paper-2)}
.sample-toc__summary{
  display:flex;align-items:center;gap:.6rem;
  min-height:44px;
  padding:0 .9rem;
  cursor:pointer;
  font-size:.9rem;
  font-weight:600;
  color:var(--ink-2);
  list-style:none;
}
.sample-toc__summary::-webkit-details-marker{display:none}
.sample-toc__summary::before{content:'';width:0;height:0;border-left:5px solid currentColor;border-top:4px solid transparent;border-bottom:4px solid transparent;transition:transform .15s ease}
.sample-toc[open] .sample-toc__summary::before{transform:rotate(90deg)}
.sample-toc[open] .sample-toc__summary{border-bottom:1px solid var(--rule)}
.sample-toc__list{margin:0;padding:.6rem .9rem .8rem 2.2rem}
.sample-toc__list li{margin:0}
.sample-toc__list li::marker{font-family:var(--mono);font-size:.8rem;color:var(--ink-3)}
.sample-toc__list a{display:inline-flex;align-items:center;min-height:36px;color:var(--ink-2);font-size:.92rem;line-height:1.35;text-decoration:none}
.sample-toc__list a:hover{color:var(--accent-2);text-decoration:underline;text-underline-offset:.15em}

.sample .prose{counter-reset:wpr-sec;font-size:1.075rem}
.sample .prose hr{border:0;border-top:1px solid var(--rule);margin:2.4rem 0}
.sample .prose h2.wpr-sec{counter-increment:wpr-sec;margin-top:2.2rem}
.sample .prose h2.wpr-sec::before{
  content:counter(wpr-sec,decimal-leading-zero);
  content:counter(wpr-sec,decimal-leading-zero) / '';
  display:block;
  margin-bottom:.35rem;
  font-family:var(--mono);
  font-size:.8rem;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--accent);
}
.sample .prose h2.wpr-sources-h{
  margin-top:2.4rem;
  font-family:var(--mono);
  font-size:.9rem;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-2);
}
.sample .prose ul.wpr-sources{list-style:none;margin:0 0 1.6rem;padding:0;display:grid;gap:.6rem}
.sample .prose li.wpr-src{
  margin:0;
  padding:.75rem 1rem;
  background:var(--card);
  border:1px solid var(--rule);
  border-left:3px solid var(--accent);
  border-radius:6px;
  font-size:.95rem;
  line-height:1.5;
}
.wpr-src__host{display:block;margin-bottom:.2rem;font-family:var(--mono);font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.wpr-src__ref{display:block;min-width:0}
.sample .prose p.wpr-notice{
  margin:1.6rem 0 0;
  padding:1rem 1.2rem;
  background:var(--warn-soft);
  border:1px solid color-mix(in oklab,var(--warn) 35%,var(--rule));
  border-radius:8px;
  font-size:.93rem;
  line-height:1.6;
  color:var(--ink-2);
}
.sample .prose p.wpr-notice strong{color:var(--warn)}

.row-mates{margin-top:2.6rem;border-top:3px solid var(--ink);padding-top:.9rem}
.row-mates__title{margin:0 0 .5rem;font-family:var(--mono);font-size:.85rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2)}
.row-mates__list{list-style:none;margin:0;padding:0}
.row-mates__list li{margin:0;border-bottom:1px solid var(--rule)}
.row-mates__link{display:flex;align-items:baseline;gap:.8rem;min-height:44px;padding:.55rem 0;color:var(--ink);text-decoration:none;line-height:1.35}
.row-mates__code{flex:0 0 2.4rem;font-family:var(--mono);font-size:.82rem;font-weight:600;color:var(--accent)}
.row-mates__link:hover .row-mates__name{color:var(--accent-2);text-decoration:underline;text-underline-offset:.16em}
.row-mates__all{margin:.8rem 0 0;font-size:.9rem}
.row-mates__all a{color:var(--accent-2)}

@media (prefers-reduced-motion:reduce){
  .sample-toc__summary::before,.well{transition:none}
  a.well:hover{transform:none}
}
@media print{
  .bench,.sample-toc,.row-mates{display:none!important}
  .sample .prose li.wpr-src{break-inside:avoid}
}

/* ========================================================================
   26. PRINT
   ======================================================================== */
@media print{
  .topbar,.site-footer,.meta-rail,.toc-drawer,.reading-progress,.post-nav,.comments-area,.skip-link{display:none!important}
  body{background:#fff;color:#000}
  .article-shell{display:block;padding:0}
  .article-main{max-width:none}
  a{color:inherit;text-decoration:underline}
  .prose h2,.prose h3{break-after:avoid}
  .prose img{max-width:100%;break-inside:avoid}
}

/* ========================================================================
   27. GLOBAL REDUCED MOTION OVERRIDE (WD-16 safety net)
   ======================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
}