/* Generated by site/build_ds.py from design-system/acem-field-guide/project (tokens.json + components/bundle.css). Do not edit. */
:root {
  --paper: #f3f5f7;
  --card: #ffffff;
  --line: #d5dde3;
  --line-2: #e6ecf0;
  --plate: #0e1a24;
  --plate-ink: #e8f0f5;
  --ink: #0e1a24;
  --ink-2: #2b3c4a;
  --muted: #5a6d7c;
  --beam: #07799a;
  --beam-soft: #dcf0f5;
  --yel: #ffc400;
  --on-yel: #0e1a24;
  --yel-ink: #6b5200;
  --yel-soft: #fff5d1;
  --red: #c21f36;
  --red-soft: #fbe4e7;
  --green: #1f7f49;
  --green-soft: #def1e5;
  --amber: #9a6200;
  --tem: #fffbe6;
  --tem-line: #d9cf98;
  --cat-orientation: #6f7f8c;
  --cat-tem: #07799a;
  --cat-diffraction: #7a55b8;
  --cat-stem: #b87d00;
  --cat-corrector: #c9572a;
  --diagram-lens: #9fb3c2;
  --diagram-beam: #4fc8e4;
  --diagram-detector: #c9a5ff;
  --diagram-eds: #ffb27a;
  --diagram-screen: #8fdc9f;
  --diagram-camera: #2b3c4a;
  --diagram-note: #7c93a4;
  --fig-cyan: #00a3c4;
  --fig-red: #d7263d;
  --fig-green: #2e9e5b;
  --fig-outline: #52cbe6;
  --fig-panel: #182836;
  --fig-chip-idle: #263a4a;
  --fig-muted: #7892a4;
  --gutter-min: 16px;
  --gutter: 20px;
  --stack-2xs: 0.35rem;
  --stack-xs: 0.55rem;
  --stack-sm: 0.9rem;
  --stack-md: 1.2rem;
  --stack-lg: 1.6rem;
  --stack-xl: 2rem;
  --radius-tag: 3px;
  --radius-chip: 4px;
  --radius-tile: 6px;
  --radius-sm: 8px;
  --radius-card: 10px;
  --radius-plate: 12px;
  --radius-panel: 14px;
  --radius-pill: 999px;
  --shadow-key: inset 0 -2px 0 #ffc400;
  --shadow-lift: {'light': '0 8px 24px rgba(14,26,36,.12)', 'dark': '0 10px 30px rgba(0,0,0,.35)'};
  --measure: 70ch;
  --page-doc: 1040px;
  --page-sop: 1000px;
  --page-course: 1060px;
  --font-display: "Barlow Condensed", "Avenir Next Condensed", "Arial Narrow", sans-serif;
  --font-body: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0b141c;
    --card: #111e29;
    --line: #263847;
    --line-2: #1b2a36;
    --plate: #070d12;
    --ink: #e4edf2;
    --ink-2: #c3d1db;
    --muted: #8fa4b3;
    --beam: #4fc8e4;
    --beam-soft: #0f3340;
    --yel-ink: #ffd65a;
    --yel-soft: #3b3007;
    --red: #ff6b7e;
    --red-soft: #3d1219;
    --green: #5fd08e;
    --green-soft: #0f3020;
    --amber: #f0a92e;
    --tem: #2a2710;
    --tem-line: #5b5324;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0b141c;
  --card: #111e29;
  --line: #263847;
  --line-2: #1b2a36;
  --plate: #070d12;
  --ink: #e4edf2;
  --ink-2: #c3d1db;
  --muted: #8fa4b3;
  --beam: #4fc8e4;
  --beam-soft: #0f3340;
  --yel-ink: #ffd65a;
  --yel-soft: #3b3007;
  --red: #ff6b7e;
  --red-soft: #3d1219;
  --green: #5fd08e;
  --green-soft: #0f3020;
  --amber: #f0a92e;
  --tem: #2a2710;
  --tem-line: #5b5324;
  color-scheme: dark;
}

/* ACEM Field Guide — component styles. Tokens come from tokens.css (--paper, --ink, --beam, --yel …, --font-display …).
   Class names follow the 2026-09-25 Spectra Ultra pages; renamed ones are noted in each component's README. */
:root { --display: var(--font-display); --body: var(--font-body); --mono: var(--font-mono); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.62 var(--body); }
img, video { max-width: 100%; display: block; }
a { color: var(--beam); text-underline-offset: 2px; }
h1, h2, h3, h4 { font-family: var(--display); line-height: 1.08; text-wrap: balance; margin: 0; }
p { margin: 0 0 .9em; }
:focus-visible { outline: 3px solid var(--yel); outline-offset: 2px; }

/* ---------- text marks ---------- */
.eyebrow { font: 600 .78rem/1 var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.mono, .val { font-family: var(--mono); font-size: .88em; letter-spacing: -.01em; }
.val { color: var(--beam); font-weight: 500; white-space: nowrap; }
.ui { display: inline-flex; flex-wrap: wrap; align-items: center; gap: .15em .3em; background: var(--tem); color: var(--ink);
  border: 1px solid var(--tem-line); border-radius: var(--radius-chip); padding: .02em .45em; font: 500 .84em/1.5 var(--body); white-space: normal; }
.ui i { font-style: normal; color: var(--muted); }
.key { display: inline-block; font: 600 .86em/1.35 var(--display); letter-spacing: .03em; background: var(--plate); color: #fff;
  border-radius: var(--radius-pill); padding: .05em .7em; box-shadow: var(--shadow-key); white-space: nowrap; }
.tag { display: inline-block; font: 600 .72rem/1 var(--display); letter-spacing: .1em; text-transform: uppercase;
  padding: .35em .6em; border-radius: var(--radius-tag); background: var(--line-2); color: var(--ink-2); vertical-align: .12em; }
.tag.std { background: var(--beam-soft); color: var(--beam); }
.src { font: 600 .72rem/1 var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--beam); margin-right: .4em; }
.when { display: flex; flex-wrap: wrap; gap: .4rem .9rem; font: 500 .8rem/1.4 var(--mono); color: var(--muted); }
.when b { color: var(--beam); font-weight: 500; }

/* ---------- chapter head ---------- */
.ch-head { display: grid; grid-template-columns: auto 1fr; gap: .2rem 1.1rem; align-items: end; border-bottom: 2px solid var(--ink);
  padding-bottom: .8rem; margin-bottom: 1.4rem; max-width: var(--page-doc); }
.ch-num { font: 700 3.6rem/0.8 var(--display); color: transparent; -webkit-text-stroke: 1.5px var(--beam); grid-row: span 2; }
.ch-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); font-weight: 700; text-transform: uppercase; letter-spacing: .01em; }
@media (max-width: 520px) { .ch-num { font-size: 2.6rem; } }

/* ---------- callouts and quotes ---------- */
.callout { border-radius: var(--radius-card); padding: .9rem 1.1rem; margin: 1.2rem 0; background: var(--card); border: 1px solid var(--line); }
.callout > b:first-child, .callout .h { font: 700 .82rem/1 var(--display); letter-spacing: .12em; text-transform: uppercase; display: block; margin-bottom: .45rem; }
.callout p:last-child { margin: 0; }
.callout.caution { background: var(--red-soft); border-color: transparent; }
.callout.caution > b:first-child { color: var(--red); }
.callout.why { background: var(--beam-soft); border-color: transparent; }
.callout.why > b:first-child { color: var(--beam); }
.callout.tip { background: var(--green-soft); border-color: transparent; }
.callout.tip > b:first-child { color: var(--green); }
blockquote.say { margin: 1.3rem 0; padding: .2rem 0 .2rem 1.1rem; border-left: 3px solid var(--yel); font: 500 1.08rem/1.5 var(--body); color: var(--ink-2); }
blockquote.say cite { display: block; margin-top: .35rem; font: 600 .74rem/1 var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-style: normal; }

/* ---------- procedures ---------- */
ol.proc { list-style: none; counter-reset: s; padding: 0; margin: 1.2rem 0; display: grid; gap: .55rem; }
ol.proc > li { counter-increment: s; position: relative; padding: .7rem .9rem .7rem 3.1rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-card); }
ol.proc > li::before { content: counter(s); position: absolute; left: .8rem; top: .72rem; width: 1.65rem; height: 1.65rem; border-radius: 50%;
  background: var(--ink); color: var(--paper); font: 700 .95rem/1.65rem var(--display); text-align: center; }
ol.proc > li .see { display: block; color: var(--muted); font-size: .92em; margin-top: .2rem; }
ol.proc > li .see::before { content: "You should see → "; font: 600 .74rem var(--display); letter-spacing: .08em; text-transform: uppercase; color: var(--green); }

/* ---------- figures and clips on plates ---------- */
figure { margin: 1.6rem 0; }
figure .plate { background: var(--plate); border-radius: var(--radius-plate); overflow: hidden; }
figure .plate img, figure .plate video { width: 100%; height: auto; }
figcaption { font-size: .9rem; color: var(--muted); margin-top: .6rem; line-height: 1.5; }
figcaption b { color: var(--ink); }
ol.legend { list-style: none; padding: 0; margin: .6rem 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: .35rem 1rem;
  counter-reset: l; font-size: .86rem; color: var(--ink-2); }
ol.legend li { counter-increment: l; display: flex; gap: .5rem; align-items: baseline; }
ol.legend li::before { content: counter(l); flex: none; width: 1.3rem; height: 1.3rem; border-radius: 50%; background: var(--yel); color: var(--on-yel);
  font: 700 .8rem/1.3rem var(--display); text-align: center; }
.clipbadge { font: 700 .7rem/1 var(--display); letter-spacing: .14em; text-transform: uppercase; background: var(--yel); color: var(--on-yel);
  padding: .3em .55em; border-radius: var(--radius-tag); margin-right: .45em; }

/* ---------- tables ---------- */
.tablewrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .9rem; font-variant-numeric: tabular-nums; }
table.data th { font: 700 .76rem/1.2 var(--display); letter-spacing: .1em; text-transform: uppercase; text-align: left; color: var(--muted);
  border-bottom: 2px solid var(--ink); padding: .45rem .5rem; }
table.data td { border-bottom: 1px solid var(--line); padding: .45rem .5rem; vertical-align: top; }
table.nums { width: 100%; border-collapse: collapse; font-size: .84rem; font-variant-numeric: tabular-nums; }
table.nums td { padding: .28rem .35rem; border-top: 1px solid var(--line); vertical-align: top; }
table.nums td:first-child { color: var(--muted); width: 48%; }
table.nums td:last-child { font: 500 .82rem var(--mono); color: var(--ink); text-align: right; }
.ok { color: var(--green); font-weight: 600; }
.bad { color: var(--red); font-weight: 600; }

/* ---------- SOP ---------- */
.rules { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: .5rem; margin: 1rem 0; }
.rules > div { background: var(--red-soft); border-radius: var(--radius-sm); padding: .55rem .7rem; font-size: .86rem; }
.rules b { display: block; font: 700 .95rem/1.15 var(--display); letter-spacing: .03em; text-transform: uppercase; color: var(--red); margin-bottom: .15rem; }
.sop-block { break-inside: avoid; margin: 0 0 1.1rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-card); padding: .75rem .9rem .5rem; font-size: 14px; line-height: 1.45; }
.sop-block h2 { display: flex; align-items: baseline; gap: .55rem; font-size: 1.25rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; margin-bottom: .45rem; }
.sop-block h2 .sop-letter { display: inline-grid; place-items: center; width: 1.6rem; height: 1.6rem; border-radius: var(--radius-tile); background: var(--ink); color: var(--paper); font-size: 1rem; flex: none; }
.sop-block h2 small { margin-left: auto; font: 500 .7rem/1 var(--mono); color: var(--muted); letter-spacing: 0; text-transform: none; }
ul.cl { list-style: none; padding: 0; margin: 0; }
ul.cl li { position: relative; padding: .28rem 0 .28rem 1.6rem; border-top: 1px dashed var(--line); }
ul.cl li:first-child { border-top: 0; }
ul.cl li::before { content: ""; position: absolute; left: 0; top: .42rem; width: .95rem; height: .95rem; border: 1.6px solid var(--ink-2); border-radius: var(--radius-tag); }
ul.cl li.warn { color: var(--red); }
ul.cl li.warn::before { border-color: var(--red); }
ul.cl .v { font: 500 .82em var(--mono); color: var(--beam); white-space: nowrap; }
.sop-block .ui, .sop-block .key { font-size: .8em; }
.goodfix { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .6rem; margin-top: .3rem; }
.goodfix figure { margin: 0; }
.goodfix .pair { display: grid; grid-template-columns: 1fr 1fr; gap: 3px; background: var(--plate); border-radius: var(--radius-sm); overflow: hidden; }
.goodfix img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.goodfix .pair span { position: relative; }
.goodfix .pair span::after { position: absolute; left: 4px; bottom: 3px; font: 700 .62rem/1 var(--display); letter-spacing: .08em; padding: .15em .3em; border-radius: 2px; color: var(--paper); }
.goodfix .pair span:first-child::after { content: "FIX"; background: var(--red); }
.goodfix .pair span:last-child::after { content: "GOOD"; background: var(--green); }
.goodfix figcaption { margin-top: .3rem; font-size: .76rem; line-height: 1.3; color: var(--ink-2); }
.goodfix figcaption b { display: block; font: 700 .85rem/1.1 var(--display); letter-spacing: .03em; }
@media print {
  @page { size: A4; margin: 10mm 10mm 11mm; }
  body { background: #fff; }
  .sop-block { padding: 2.2mm 2.8mm 1.4mm; margin-bottom: 3mm; font-size: 8.6pt; }
  a { color: inherit; text-decoration: none; }
}

/* ---------- session timeline ---------- */
.tl { margin: 1.4rem 0 .6rem; display: grid; gap: .9rem; }
.tl-row { display: grid; grid-template-columns: 4.6rem 1fr; gap: .8rem; align-items: center; }
.tl-row > span { font: 600 .82rem/1 var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.tl-bar { position: relative; height: 46px; background: var(--line-2); border-radius: var(--radius-sm); }
.tl-seg { position: absolute; top: 0; bottom: 0; border-radius: var(--radius-tile); border: 2px solid var(--paper); display: flex; align-items: center; padding: 0 .35rem;
  overflow: hidden; color: #fff; font: 600 .8rem/1.1 var(--display); letter-spacing: .02em; text-decoration: none; white-space: nowrap; }
.tl-seg:hover { filter: brightness(1.12); }
.c-or { background: var(--cat-orientation); } .c-tem { background: var(--cat-tem); } .c-dif { background: var(--cat-diffraction); }
.c-stem { background: var(--cat-stem); } .c-cor { background: var(--cat-corrector); }
.tl-key { display: flex; flex-wrap: wrap; gap: .4rem 1rem; font-size: .8rem; color: var(--muted); }
.tl-key i { display: inline-block; width: .8rem; height: .8rem; border-radius: var(--radius-tag); vertical-align: -.1rem; margin-right: .35rem; }

/* ---------- cards, buttons, chips, status ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-panel); }
.mods { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: .9rem; }
.mod { text-align: left; padding: 0; overflow: hidden; cursor: pointer; display: flex; flex-direction: column; font: inherit; color: var(--ink);
  transition: transform .15s ease, border-color .15s; }
.mod:hover { transform: translateY(-2px); border-color: var(--beam); }
.mod .thumb { position: relative; aspect-ratio: 16 / 9; background: var(--plate); overflow: hidden; }
.mod .thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center top; opacity: .92; }
.mod .num { position: absolute; left: 10px; top: 8px; font: 700 1.6rem/1 var(--display); color: #fff; text-shadow: 0 2px 8px #000; }
.mod .done-badge { position: absolute; right: 8px; top: 8px; background: var(--green); color: #06140c; font: 700 .7rem/1 var(--display); letter-spacing: .1em; padding: .3rem .45rem; border-radius: var(--radius-chip); }
.mod .body { padding: .75rem .85rem .9rem; display: grid; gap: .35rem; }
.mod h3 { font-size: 1.28rem; font-weight: 700; letter-spacing: .02em; text-transform: uppercase; }
.mod p { margin: 0; font-size: .86rem; color: var(--ink-2); }
.mod .meta { display: flex; flex-wrap: wrap; gap: .3rem; }
.chip { display: inline-block; font: 500 .74rem/1 var(--mono); padding: .3rem .5rem; border-radius: var(--radius-pill); background: var(--paper); color: var(--ink-2); border: 1px solid var(--line); }
.btn { display: inline-flex; align-items: center; gap: .45rem; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 9px;
  padding: .5rem .85rem; cursor: pointer; font: 600 .95rem/1 var(--display); letter-spacing: .05em; text-transform: uppercase; text-decoration: none; }
.btn:hover { border-color: var(--beam); }
.btn.primary { background: var(--yel); color: var(--on-yel); border-color: var(--yel); }
.pill { display: inline-block; font: 700 .72rem/1 var(--display); letter-spacing: .08em; text-transform: uppercase; padding: .3rem .5rem; border-radius: var(--radius-chip); }
.pill.in { background: color-mix(in srgb, var(--green) 25%, transparent); color: var(--green); }
.pill.edge { background: color-mix(in srgb, var(--amber) 25%, transparent); color: var(--amber); }
.pill.out { background: color-mix(in srgb, var(--red) 25%, transparent); color: var(--red); }

/* ---------- levels ---------- */
.levelbar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.levelbar .lbl { font: 600 .95rem/1 var(--display); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg button { font: inherit; cursor: pointer; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: var(--radius-card);
  padding: 6px 12px 6px 10px; display: flex; align-items: center; gap: 9px; text-align: left; }
.seg button b { font: 600 1.02rem/1.1 var(--display); letter-spacing: .02em; display: block; }
.seg button small { display: block; color: var(--muted); font-size: .74rem; line-height: 1.2; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.seg button[aria-pressed="true"] small { color: var(--paper); opacity: .8; }
.seg .cmp { border-style: dashed; }
.pips { display: inline-flex; gap: 3px; }
.pips i { width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid currentColor; display: block; }
.pips i.on { background: currentColor; }
body[data-level="1"] [data-lv]:not([data-lv*="1"]), body[data-level="2"] [data-lv]:not([data-lv*="2"]),
body[data-level="3"] [data-lv]:not([data-lv*="3"]) { display: none !important; }

/* ---------- quiz ---------- */
.q { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 14px 16px; margin: 10px 0; max-width: 76ch; }
.q > p { font-weight: 600; margin-bottom: 8px; }
.q .opts { display: grid; gap: 6px; }
.q button { font: inherit; text-align: left; cursor: pointer; border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: var(--radius-sm); padding: 7px 10px; }
.q button.right { border-color: var(--green); background: var(--green-soft); }
.q button.wrong { border-color: var(--red); background: var(--red-soft); }
.q .expl { margin-top: 8px; font-size: .92rem; color: var(--ink-2); }

/* ---------- reading shelf ---------- */
.shelf { display: grid; gap: 0; max-width: 80ch; }
.shelf-row { display: grid; grid-template-columns: 5.2rem minmax(0, 1fr); gap: 2px 12px; padding: 9px 0; border-bottom: 1px solid var(--line-2); }
.shelf-row .sec { font: 500 .82rem/1.5 var(--mono); color: var(--beam); }
.shelf-row .t { font-weight: 600; }
.shelf-row .d { grid-column: 2; font-size: .9rem; color: var(--ink-2); }

/* ---------- simulation shell ---------- */
.sim { background: var(--plate); color: var(--plate-ink); border-radius: var(--radius-panel); padding: 12px; }
.sim canvas { width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
.simctl { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.simctl button { font: 600 1rem/1.2 var(--display); letter-spacing: .03em; cursor: pointer; border-radius: var(--radius-sm); border: 1px solid var(--yel);
  background: var(--yel); color: var(--on-yel); padding: 5px 12px; user-select: none; }
.simctl button.ghost { background: transparent; color: var(--plate-ink); border-color: var(--diagram-camera); }
.simctl .read { font: 500 .86rem/1.2 var(--mono); margin-left: auto; }
.simstat { margin-top: 8px; font-size: .88rem; min-height: 1.5em; color: var(--diagram-lens); }
.simstat.ok { color: var(--diagram-screen); }

/* ---------- column schematic ---------- */
.colsvg { width: 100%; max-width: 420px; height: auto; display: block; }