/* HeyTobor — shared styles for project pages: article layout and the lab panel frame.
   Each project adds its own /<slug>/lab.css for what's inside its diagrams. */
:root {
  --panel: #fffdf8;
  --panel-grid: rgba(28, 37, 48, .045);
  --box-fill: rgba(255, 255, 255, .7);
  --box-stroke: #cfc7b8;
  --jacket: #e9e4da;
  --diagram-ink: #2d3742;
  --diagram-ink-2: #6b7480;
  --wire-casing: #77808a;
  --body: #f2ead7;
  --body-stroke: #b9ad94;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --panel: #171d23; --panel-grid: rgba(255, 255, 255, .035); --box-fill: rgba(255, 255, 255, .03); --box-stroke: #3a444e;
    --jacket: #2a323a; --diagram-ink: #dfe3e7; --diagram-ink-2: #98a2ad; --wire-casing: #8d969f; --body: rgba(242, 234, 215, .14); --body-stroke: #8a8170;
  }
}
:root[data-theme="dark"] {
  --panel: #171d23; --panel-grid: rgba(255, 255, 255, .035); --box-fill: rgba(255, 255, 255, .03); --box-stroke: #3a444e;
  --jacket: #2a323a; --diagram-ink: #dfe3e7; --diagram-ink-2: #98a2ad; --wire-casing: #8d969f; --body: rgba(242, 234, 215, .14); --body-stroke: #8a8170;
}

/* ---------- article layout ---------- */
.crumbs { font-size: .85rem; color: var(--ink-3); margin: 28px 0 0; }
.crumbs a { color: var(--ink-3); }
.post-head { padding: 18px 0 8px; }
.post-head h1 { max-width: 22ch; }
.post-head .lede { font-size: 1.18rem; color: var(--ink-2); max-width: 60ch; }
.byline { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--ink-3); font-size: .9rem; margin-top: 4px; }
.prose { max-width: var(--prose); }
.prose h2 { margin-top: 72px; }
.prose h3 { margin-top: 36px; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin: .35em 0; }
.prose strong { font-weight: 650; }
section[id] { scroll-margin-top: 100px; }
.toc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; margin: 28px 0; font-size: .95rem; }
.toc b { display: block; margin-bottom: 6px; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.toc ol { margin: 0; padding-left: 1.2em; columns: 2 220px; column-gap: 28px; }
.toc a { color: var(--ink); text-decoration: none; }
.toc a:hover { color: var(--accent); text-decoration: underline; }
.callout { border-radius: var(--radius); padding: 16px 18px; margin: 24px 0; background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); font-size: .97rem; }
.callout.safety { background: color-mix(in srgb, var(--warn) 9%, var(--bg)); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.callout > :last-child { margin-bottom: 0; }
.keypoint { font-family: var(--font-display); font-size: 1.35rem; line-height: 1.4; border-left: 4px solid var(--accent); padding: 4px 0 4px 18px; margin: 28px 0; }
.table-wrap { overflow-x: auto; margin: 0 0 1.4em; }
table.data { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 440px; }
table.data th, table.data td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.data th { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); font-weight: 650; }
.swatch { display: inline-block; width: 26px; height: 9px; border-radius: 5px; vertical-align: middle; margin-right: 8px; border: 1.5px solid var(--wire-casing); }
.sw-black { background: #222; } .sw-red { background: #d63a3a; } .sw-white { background: #fff; } .sw-bare { background: #c8834a; border-color: #8a5a2b; } .sw-green { background: #2f9e44; }
.steps { counter-reset: step; list-style: none; padding: 0 !important; }
.steps > li { counter-increment: step; position: relative; padding: 2px 0 14px 52px; margin: 0 !important; }
.steps > li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: var(--bg); font: 700 .95rem/34px var(--font); text-align: center; }
.steps > li b { display: block; }
.terms { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 20px 0 28px; }
.term { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; font-size: .94rem; line-height: 1.55; }
.term .dot { width: 18px; height: 18px; border-radius: 50%; display: inline-block; vertical-align: -3px; margin-right: 8px; border: 2px solid rgba(0, 0, 0, .25); }
.term b { font-size: 1.02rem; }
.term p { margin: 8px 0 0; color: var(--ink-2); }
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { cursor: pointer; font-weight: 650; padding: 12px 28px 12px 0; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 8px; font-size: 1.4rem; color: var(--ink-3); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding: 0 0 14px; color: var(--ink-2); }
.video-wrap { border-radius: 18px; overflow: hidden; background: #000; aspect-ratio: 16 / 9; box-shadow: var(--shadow); }
.video-wrap video, .video-wrap iframe { width: 100%; height: 100%; border: 0; }
.sources { font-size: .9rem; color: var(--ink-3); }
.sources li { word-break: break-word; }
.related { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- lab panel frame ---------- */
.lab { margin: 28px 0 8px; background: var(--panel); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); overflow: hidden; }
.lab-bar { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; padding: 12px 16px; border-top: 1px solid var(--line); font-size: .92rem; color: var(--ink-2); }
.lab-bar.top { border-top: 0; border-bottom: 1px solid var(--line); }
.lab-bar .grow { flex: 1; }
.toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.toggle input { accent-color: var(--accent); width: 17px; height: 17px; }
.status { font-weight: 600; color: var(--ink); }
.status span { font-weight: 400; color: var(--ink-3); }
.diagram { width: 100%; height: auto; background-image: linear-gradient(var(--panel-grid) 1px, transparent 1px), linear-gradient(90deg, var(--panel-grid) 1px, transparent 1px); background-size: 24px 24px; }
.diagram-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.diagram-scroll > svg { min-width: 700px; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tabs button { font: 600 .9rem/1.2 var(--font); padding: 9px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

@media print {
  .site-header, .site-footer, .lab-bar, .video-wrap { display: none; }
}