/* Purpose with Presence studio guides (/studio/guides/). Same "workshop bench" identity as the studio page (home-v2/DIRECTION.md).
   Base, header, button and footer rules are copied from /studio/studio.css; every value resolves to /studio/tokens.css. No literal colours here. */

@font-face {
  font-family: "Bricolage Fallback";
  src: local("Arial"), local("Helvetica Neue"), local("Helvetica");
  size-adjust: 97%;
  ascent-override: 96%;
  descent-override: 26%;
  line-gap-override: 0%;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: var(--spacing-6); overflow-x: hidden; overflow-x: clip; }
body {
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-text);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  font-variation-settings: "opsz" 14, "wdth" 100;
  font-kerning: normal;
  overflow-x: hidden;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:hover { text-decoration-color: var(--color-accent); }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; border-radius: var(--radius-control); }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip {
  position: absolute; left: var(--spacing-4); top: var(--spacing-4); z-index: 5;
  padding: var(--spacing-2) var(--spacing-4);
  background: var(--color-accent); color: var(--color-on-accent);
  border-radius: var(--radius-control);
  transform: translateY(-200%);
}
.skip:focus { transform: none; }
.wrap { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 var(--spacing-4); }
@media (min-width: 600px) { .wrap { padding: 0 var(--spacing-6); } }
@media (min-width: 1024px) { .wrap { padding: 0 var(--spacing-12); } }
.ic { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.num { font-variant-numeric: tabular-nums lining-nums; }

/* ── type ── */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-display);
  margin: 0;
  text-wrap: balance;
}
p { margin: 0 0 var(--spacing-4); max-width: var(--measure-body); }
.lede { font-size: var(--text-base); color: var(--color-muted); line-height: 1.45; }
@media (min-width: 768px) { .lede { font-size: var(--text-lead); line-height: 1.4; } }
.idx {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-mono);
  color: var(--color-faint);
  margin: 0 0 var(--spacing-4);
}

/* ── header ── */
.site-head { position: relative; z-index: 2; border-bottom: 1px solid var(--color-line-soft); }
.head-row { display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-2) var(--spacing-6); flex-wrap: wrap; padding-top: var(--spacing-3); padding-bottom: var(--spacing-3); }
.brand { display: inline-flex; align-items: center; gap: var(--spacing-3); text-decoration: none; min-height: 44px; }
.brand-name { font-family: var(--font-display); font-weight: 650; font-size: var(--text-base); font-variation-settings: "opsz" 24, "wdth" 90; letter-spacing: -0.01em; }
.mark { width: 22px; height: 32px; color: var(--color-ink); }
.mark .flame { fill: var(--color-accent); }
.nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0 var(--spacing-4); margin: 0; padding: 0; }
.nav a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; color: var(--color-muted); font-family: var(--font-mono); font-size: var(--text-label); letter-spacing: var(--tracking-mono); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--color-ink); text-decoration: underline; text-decoration-color: var(--color-accent); }
@media (min-width: 768px) { .nav ul { gap: 0 var(--spacing-8); } }

/* ── buttons and links ── */
.button {
  font: inherit; font-weight: 600; font-size: var(--text-sm);
  display: inline-flex; align-items: center; justify-content: center; gap: var(--spacing-3);
  min-height: 52px; padding: var(--spacing-3) var(--spacing-6);
  border: 0; border-radius: var(--radius-control);
  background: var(--color-accent); color: var(--color-on-accent);
  cursor: pointer; text-decoration: none; text-align: center;
  transition: transform var(--duration-press) var(--ease-enter);
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(1px); }
.text-link { display: inline-flex; align-items: center; gap: var(--spacing-2); min-height: 44px; color: var(--color-ink); font-weight: 600; font-size: var(--text-sm); text-decoration: underline; text-decoration-color: var(--color-line); }
.text-link:hover { text-decoration-color: var(--color-accent); }
.text-link .ic { width: 18px; height: 18px; }

/* ── page head ── */
.doc-head { position: relative; overflow: hidden; padding: var(--spacing-8) 0 var(--spacing-12); border-bottom: 1px solid var(--color-line-soft); }
@media (min-width: 900px) { .doc-head { padding: var(--spacing-12) 0 var(--spacing-16); } }
.doc-head::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: linear-gradient(var(--color-line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--color-line-soft) 1px, transparent 1px);
  background-size: 44px 44px; background-position: -1px -1px;
  -webkit-mask-image: linear-gradient(to right, transparent 45%, black 95%);
  mask-image: linear-gradient(to right, transparent 45%, black 95%);
  opacity: 0.6;
}
.doc-head .wrap { position: relative; z-index: 1; }
.doc-head h1 {
  font-size: var(--text-h3); line-height: var(--leading-tight); font-weight: 720;
  font-variation-settings: "opsz" 96, "wdth" 87; letter-spacing: -0.018em;
  max-width: 22ch; margin-bottom: var(--spacing-6);
  overflow-wrap: break-word;
}
@media (min-width: 600px) { .doc-head h1 { font-size: var(--text-h2); line-height: var(--leading-display); } }
@media (min-width: 1200px) { .doc-head h1 { font-size: var(--text-h1); } }
.hub-head h1 { max-width: 16ch; }
.doc-head .lede { max-width: 60ch; margin-bottom: 0; }

.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0 var(--spacing-2); margin: 0 0 var(--spacing-6); padding: 0; font-family: var(--font-mono); font-size: var(--text-label); letter-spacing: var(--tracking-mono); color: var(--color-faint); }
.crumbs li { display: inline-flex; align-items: center; gap: var(--spacing-2); min-width: 0; }
.crumbs li + li::before { content: "/"; color: var(--color-line); }
.crumbs a { display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; color: var(--color-muted); text-decoration: none; }
.crumbs a:hover { color: var(--color-ink); text-decoration: underline; text-decoration-color: var(--color-accent); }
.crumbs [aria-current] { color: var(--color-faint); overflow-wrap: anywhere; }

.meta { margin: var(--spacing-8) 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--color-line); max-width: 720px; }
.meta div { padding: var(--spacing-3) var(--spacing-3) 0 0; }
.meta div + div { padding-left: var(--spacing-3); border-left: 1px solid var(--color-line-soft); }
.meta dt { font-family: var(--font-mono); font-size: var(--text-label); letter-spacing: var(--tracking-mono); color: var(--color-faint); }
.meta dd { margin: var(--spacing-1) 0 0; font-size: var(--text-sm); color: var(--color-ink); }
.meta dd a { text-decoration-color: var(--color-line); }

/* ── article layout: 12 columns, table of contents left on wide screens ── */
.doc { padding-top: var(--spacing-12); padding-bottom: var(--spacing-16); }
@media (min-width: 1024px) {
  .doc { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--spacing-6); padding-top: var(--spacing-16); padding-bottom: var(--spacing-24); }
  .prose { grid-column: 4 / span 8; }
}
.prose { min-width: 0; }
.toc-wrap { min-width: 0; margin-bottom: var(--spacing-12); }
.toc { border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line-soft); font-size: var(--text-sm); }
@media (min-width: 1024px) { .toc-wrap { grid-column: 1 / span 3; position: sticky; top: var(--spacing-6); align-self: start; max-height: calc(100vh - 48px); overflow-y: auto; margin-bottom: 0; } .toc { border-bottom: 0; } }
.toc-h { display: flex; align-items: center; gap: var(--spacing-2); min-height: 44px; cursor: pointer; list-style: none; font-family: var(--font-mono); font-size: var(--text-label); letter-spacing: var(--tracking-mono); color: var(--color-muted); }
.toc-h::-webkit-details-marker { display: none; }
.toc-h::after { content: ""; margin-left: auto; flex: none; width: 10px; height: 10px; border-right: 1.75px solid var(--color-faint); border-bottom: 1.75px solid var(--color-faint); transform: rotate(45deg) translate(-2px, -2px); transition: transform var(--duration-state) var(--ease-enter); }
.toc[open] .toc-h::after { transform: rotate(225deg) translate(-2px, -2px); }
.toc-h .ic { width: 16px; height: 16px; }
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; }
.toc li { counter-increment: toc; border-bottom: 1px solid var(--color-line-soft); }
.toc a { display: flex; gap: var(--spacing-3); padding: var(--spacing-2) 0; min-height: 44px; align-items: center; color: var(--color-muted); text-decoration: none; line-height: 1.3; }
.toc a::before { content: counter(toc, decimal-leading-zero); font-family: var(--font-mono); font-size: var(--text-label); color: var(--color-faint); flex: none; min-width: 3ch; }
.toc a:hover { color: var(--color-ink); }

/* ── question and answer blocks ── */
.qa { padding: 0 0 var(--spacing-12); margin: 0 0 var(--spacing-12); border-bottom: 1px solid var(--color-line-soft); scroll-margin-top: var(--spacing-6); }
.qa h2 { font-size: var(--text-lead); font-variation-settings: "opsz" 72, "wdth" 86; font-weight: 680; margin-bottom: var(--spacing-4); max-width: 30ch; }
@media (min-width: 768px) { .qa h2 { font-size: var(--text-h3); } }
.answer { font-size: var(--text-base); color: var(--color-ink); margin: 0 0 var(--spacing-6); padding-left: var(--spacing-4); border-left: 2px solid var(--color-accent); max-width: var(--measure-body); }
@media (min-width: 768px) { .answer { font-size: var(--text-lead); line-height: 1.4; } }
.qa p:not(.answer) { color: var(--color-muted); }
.qa p a, .qa li a { color: var(--color-ink); text-decoration-color: var(--color-line); overflow-wrap: anywhere; }
.qa p a:hover, .qa li a:hover { text-decoration-color: var(--color-accent); }
.qa strong { color: var(--color-ink); font-weight: 600; }
.note { font-size: var(--text-sm); color: var(--color-faint) !important; }

.check { list-style: none; margin: 0 0 var(--spacing-6); padding: 0; display: grid; gap: var(--spacing-3); color: var(--color-muted); max-width: var(--measure-body); }
.check li { position: relative; padding-left: var(--spacing-6); }
.check li::before { content: "+"; position: absolute; left: 0; top: 0; font-family: var(--font-mono); color: var(--color-plus); }

.checklist { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--color-line); max-width: var(--measure-wide); }
.checklist li { border-bottom: 1px solid var(--color-line-soft); }
.checklist a { display: flex; gap: var(--spacing-4); align-items: baseline; padding: var(--spacing-3) 0; min-height: 44px; text-decoration: none; color: var(--color-ink); }
.checklist a:hover span:last-child { text-decoration: underline; text-decoration-color: var(--color-accent); }
.ck-n { font-family: var(--font-mono); font-size: var(--text-label); color: var(--color-accent); flex: none; min-width: 3ch; }

/* ── tables: real tables on wide screens, stacked rows on phones (no sideways scroll) ── */
.table { margin: 0 0 var(--spacing-6); border-top: 1px solid var(--color-line); }
.table:focus-visible { outline-offset: 6px; }
.table table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.table th, .table td { text-align: left; vertical-align: top; padding: var(--spacing-3) var(--spacing-3) var(--spacing-3) 0; border-bottom: 1px solid var(--color-line-soft); }
.table thead th { font-family: var(--font-mono); font-weight: 400; font-size: var(--text-label); letter-spacing: var(--tracking-mono); color: var(--color-faint); }
.table tbody th { font-weight: 600; color: var(--color-ink); }
.table td { color: var(--color-muted); }
@media (max-width: 767px) {
  .table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .table table, .table tbody, .table tr, .table th, .table td { display: block; width: 100%; }
  .table tr { padding: var(--spacing-3) 0; border-bottom: 1px solid var(--color-line-soft); }
  .table tbody th { padding: 0 0 var(--spacing-2); border: 0; font-size: var(--text-base); }
  .table td { display: grid; grid-template-columns: minmax(0, 9.5em) minmax(0, 1fr); gap: var(--spacing-3); padding: var(--spacing-1) 0; border: 0; }
  .table td::before { content: attr(data-label); font-family: var(--font-mono); font-size: var(--text-label); letter-spacing: var(--tracking-mono); color: var(--color-faint); padding-top: 2px; }
}

/* ── call to action (one per page) ── */
.cta { margin: 0 0 var(--spacing-12); padding: var(--spacing-6); border: 1px solid var(--color-line); border-radius: var(--radius-panel); background: var(--color-surface); position: relative; }
.cta::before { content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 2px; background: var(--color-accent); }
@media (min-width: 600px) { .cta { padding: var(--spacing-8); } }
.cta-title { font-family: var(--font-display); font-weight: 700; font-size: var(--text-lead); font-variation-settings: "opsz" 48, "wdth" 86; letter-spacing: -0.01em; color: var(--color-ink); margin-bottom: var(--spacing-3); }
.cta p:not(.cta-title) { color: var(--color-muted); }
.cta .button { margin-top: var(--spacing-2); }
@media (max-width: 599px) { .cta .button { width: 100%; } }

/* ── sources ── */
.sources { border-bottom: 0; }
.src-list { margin: 0; padding: 0 0 0 var(--spacing-6); display: grid; gap: var(--spacing-3); font-size: var(--text-sm); color: var(--color-muted); max-width: var(--measure-wide); }
.src-list li::marker { font-family: var(--font-mono); color: var(--color-faint); }
.src-list a { font-weight: 600; }
.src-url, .src-date { display: block; font-family: var(--font-mono); font-size: var(--text-label); color: var(--color-faint); overflow-wrap: anywhere; }

/* ── guide lists (hub and "more guides") ── */
.hub { padding-top: var(--spacing-12); padding-bottom: var(--spacing-16); max-width: 1100px; }
@media (min-width: 900px) { .hub { padding-top: var(--spacing-16); padding-bottom: var(--spacing-24); } }
.guide-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--color-line); }
.guide-list li { border-bottom: 1px solid var(--color-line-soft); }
.guide-list a { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: var(--spacing-4); align-items: start; padding: var(--spacing-6) 0; text-decoration: none; color: var(--color-ink); }
.guide-list a:hover .g-title, .guide-list a:hover > span:nth-child(2) { text-decoration: underline; text-decoration-color: var(--color-accent); text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
.guide-list a:hover .g-go, .guide-list a:hover > .ic { color: var(--color-accent); transform: translateX(2px); }
.g-ic { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--color-line); border-radius: var(--radius-panel); color: var(--color-accent); }
.g-text { display: grid; gap: var(--spacing-1); min-width: 0; }
.idx-n { font-family: var(--font-mono); font-size: var(--text-label); letter-spacing: var(--tracking-mono); color: var(--color-faint); }
.g-title { font-family: var(--font-display); font-weight: 700; font-size: var(--text-lead); line-height: var(--leading-tight); font-variation-settings: "opsz" 48, "wdth" 86; letter-spacing: -0.01em; overflow-wrap: break-word; }
@media (min-width: 768px) { .g-title { font-size: var(--text-h3); } }
.g-line { color: var(--color-muted); font-size: var(--text-sm); max-width: 64ch; }
.g-meta { font-family: var(--font-mono); font-size: var(--text-label); color: var(--color-faint); }
.g-go { color: var(--color-faint); padding-top: var(--spacing-2); transition: transform var(--duration-state) var(--ease-enter), color var(--duration-state) var(--ease-enter); }
.hub .qa:first-child .answer { margin-bottom: var(--spacing-8); }
.hub .qa { border-bottom: 0; }

.more { border-top: 1px solid var(--color-line-soft); padding: var(--spacing-12) 0; }
.guide-list.compact a { grid-template-columns: auto minmax(0, 1fr) auto; padding: var(--spacing-4) 0; align-items: baseline; }
.guide-list.compact a > span:nth-child(2) { font-weight: 600; }
.guide-list.compact .ic { color: var(--color-faint); transition: transform var(--duration-state) var(--ease-enter), color var(--duration-state) var(--ease-enter); }

/* ── footer ── */
.site-foot { border-top: 1px solid var(--color-line); padding: var(--spacing-16) 0 var(--spacing-12); font-size: var(--text-sm); color: var(--color-muted); }
.foot-grid { display: grid; gap: var(--spacing-8); }
@media (min-width: 900px) { .foot-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--spacing-6); } .foot-grid > div:first-child { grid-column: 1 / span 5; } .foot-grid > div:nth-child(2) { grid-column: 7 / span 3; } .foot-grid > div:nth-child(3) { grid-column: 10 / span 3; } }
.foot-h { font-family: var(--font-mono); font-size: var(--text-label); letter-spacing: var(--tracking-mono); color: var(--color-faint); margin-bottom: var(--spacing-3); }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; }
.site-foot ul a { display: inline-flex; align-items: center; min-height: 44px; }
.fineprint { margin: var(--spacing-12) 0 0; padding-top: var(--spacing-6); border-top: 1px solid var(--color-line-soft); color: var(--color-faint); max-width: var(--measure-wide); font-size: var(--text-label); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .button:hover, .button:active { transform: none; }
}