/* Layout: a generic example report beside an explanation panel. Tap any field on the report and the panel explains
   it, with the scale it sits on. Two report types: diamond grading and coloured stone identification. The report is
   deliberately generic: it is not any laboratory's design. */
:root {
  --paper: #ffffff; --ink: #16161a; --ink-soft: #3d3d45; --muted: #6b6b75; --rule: #e4e2de; --mist: #f4f3f1;
  --ruby: #9b1b30; --gold: #b8892f; --good: #2f7d4f;
  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-data: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

:root[data-theme="dark"] { --paper: #121216; --ink: #f1efe9; --ink-soft: #c9c6bf; --muted: #9a978f; --rule: #2c2c33; --mist: #1b1b21; --ruby: #e0566c; --gold: #e1b25a; --good: #5fbf86; color-scheme: dark; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 15px; line-height: 1.5; margin: 0; }
a { color: var(--ink); text-decoration-color: var(--ruby); text-underline-offset: 3px; }
.wrap { max-width: 1240px; margin: 0 auto; padding-inline: 16px; padding-block: 20px 48px; display: grid; gap: 24px; }
header.top { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--ink); padding-bottom: 14px; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--ruby); display: inline-flex; align-items: center; gap: 10px; }
.eyebrow::before { content: ""; flex: none; width: 4px; height: 15px; background: var(--gold); clip-path: polygon(0 24%, 100% 0, 100% 76%, 0 100%); }
h1 { font-family: var(--font-display); font-weight: 500; font-size: clamp(30px, 4.6vw, 48px); line-height: 1.03; margin: 6px 0 0; }
h2.sec { font-family: var(--font-display); font-weight: 500; font-size: 28px; margin: 0; line-height: 1.1; }
.lede { max-width: 72ch; color: var(--ink-soft); margin: 6px 0 0; }
.prototype { font-size: 12px; color: var(--muted); border: 1px solid var(--rule); padding: 4px 10px; white-space: nowrap; }
.help { font-size: 12.5px; color: var(--muted); margin: 0; }
section.study { border-top: 1px solid var(--ink); padding-top: 18px; display: grid; gap: 14px; }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button { font: 600 14px var(--font-body); border: 1px solid var(--ink); background: var(--paper); color: var(--ink); padding: 8px 14px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
button:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--ruby); outline-offset: 2px; }
.bench { display: grid; gap: 20px; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: start; }
@media (max-width: 920px) { .bench { grid-template-columns: 1fr; } }
/* the example report: a light document whatever the theme */
.report { background: #fbfaf6; color: #1d1d22; border: 1px solid #d9d4c8; box-shadow: 0 10px 30px rgba(0,0,0,.18); padding: 18px 18px 14px; display: grid; gap: 10px; font-size: 12.5px; position: relative; }
.report::after { content: "EXAMPLE"; position: absolute; right: 14px; top: 14px; font: 600 10px var(--font-body); letter-spacing: .2em; color: #9b1b30; border: 1px solid #9b1b30; padding: 2px 6px; }
.report h3 { margin: 0; font: 500 20px var(--font-display); letter-spacing: .02em; }
.report .sub { color: #6b6b75; font-size: 12px; margin-top: -6px; }
.rgrid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 14px; }
@media (max-width: 520px) { .rgrid { grid-template-columns: 1fr; } }
.rsec { display: grid; gap: 2px; align-content: start; }
.rsec h4 { margin: 6px 0 2px; font: 600 12px var(--font-body); letter-spacing: .1em; text-transform: uppercase; color: #6b6b75; border-bottom: 1px solid #d9d4c8; padding-bottom: 2px; }
.f { display: flex; flex-wrap: wrap; justify-content: space-between; column-gap: 10px; row-gap: 0; padding: 3px 5px; cursor: pointer; border: 1px solid transparent; background: none; color: inherit; font: inherit; text-align: left; }
.f span { color: #4a4a52; flex: 0 1 auto; } .f b { font: 600 12.5px var(--font-data); color: #16161a; text-align: right; margin-left: auto; flex: 0 1 auto; }
.f:hover { background: #f1ece0; }
.f[aria-pressed="true"] { border-color: #9b1b30; background: #fbe9ec; }
.figs { display: grid; gap: 8px; }
.fig { border: 1px solid #d9d4c8; background: #fff; cursor: pointer; padding: 4px; }
.fig[aria-pressed="true"] { outline: 2px solid #9b1b30; }
.fig svg { width: 100%; height: auto; display: block; }
.fig .cap { font: 600 12px var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: #6b6b75; padding: 0 4px 2px; }
.photo { display: grid; place-items: center; background: radial-gradient(circle at 50% 40%, #fff, #ece8dd); min-height: 120px; border: 1px solid #d9d4c8; cursor: pointer; }
.photo img { width: 110px; height: auto; }
.photo[aria-pressed="true"] { outline: 2px solid #9b1b30; }
.panel { border: 1px solid var(--rule); padding: 16px; display: grid; gap: 12px; align-content: start; position: sticky; top: 12px; }
.panel h3 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: 30px; line-height: 1.05; }
.panel p { margin: 0; color: var(--ink-soft); }
.scale { display: grid; gap: 4px; }
.scale .row { display: flex; gap: 2px; flex-wrap: wrap; }
.scale .row span { font: 600 12px var(--font-data); border: 1px solid var(--rule); padding: 3px 6px; color: var(--muted); }
.scale .row span.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tip { font-size: 13.5px; padding: 8px 10px; background: var(--mist); border-left: 3px solid var(--gold); margin: 0; }
.checks { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.checks div { border-top: 2px solid var(--gold); padding-top: 8px; font-size: 14px; color: var(--ink-soft); }
.checks h3 { font-family: var(--font-display); font-weight: 500; font-size: 20px; margin: 0 0 4px; color: var(--ink); }
.sources { display: grid; gap: 6px; font-size: 13px; color: var(--ink-soft); max-width: 92ch; }
.sources p { margin: 0; }
/* jewelloop.net: one column that never grows wider than the screen */
.wrap { grid-template-columns: minmax(0, 1fr); }
.jl-table-scroll { overflow-x: auto; max-width: 100%; }
/* shown once the page's script has run (static/visual/ready.js): no jump while loading */
html:not(.jl-ready) .wrap { visibility: hidden; }

/* On jewelloop.net the page around it shows the title and the introduction. */
header.top { display: none !important; }