/* Virtual Cell Bench — one stylesheet, no build step.
   Layout: a single reading column (72ch) for prose, a wider column (1120px) for boards and charts.
   The logit scale is the visual motif: a vertical hairline axis runs through the hero and section heads. */

:root {
  /* color tokens, light */
  --bg: #ffffff;
  --bg-2: #ffffff;
  --bg-3: #eef1f5;
  --fg: #14181f;
  --fg-2: #4a5362;
  --fg-3: #7a8494;
  --line: #d9dee6;
  --line-2: #c3cad5;
  --accent: #0f5fb5;
  --accent-2: #0b4d93;
  --accent-soft: #dbe8f8;
  --warn: #b35c00;
  --warn-soft: #fbe9d6;
  --ok: #0c6b2a;
  /* categorical slots (validated, light) */
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100; --s5: #e87ba4; --s6: #008300; --s7: #6250d6; --s8: #e34948; --s0: #8a93a2;
  --seq-1: #cde2fb; --seq-2: #86b6ef; --seq-3: #3987e5; --seq-4: #1c5cab; --seq-5: #0d366b;
  /* type */
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Instrument Sans", "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --radius: 6px;
  --shadow: 0 1px 2px rgba(20, 24, 31, 0.06), 0 6px 20px rgba(20, 24, 31, 0.05);
  --wide: 1120px;
  --read: 72ch;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body {
  margin: 0; background: var(--bg); color: var(--fg); font-family: var(--body); font-size: 16px; line-height: 1.55;
  font-feature-settings: "ss01", "cv11"; min-height: 100%;
}
h1, h2, h3, h4 { font-family: var(--display); font-weight: 640; line-height: 1.12; letter-spacing: -0.015em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); font-stretch: 92%; }
h2 { font-size: clamp(1.45rem, 2.4vw, 1.95rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }
p { margin: 0; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-2); }
code, pre, .mono { font-family: var(--mono); font-size: 0.86em; }
pre { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 0.9rem 1rem; overflow-x: auto; line-height: 1.5; }
code { background: var(--bg-3); padding: 0.05em 0.35em; border-radius: 4px; }
pre code { background: none; padding: 0; }
small, .small { font-size: 0.85rem; }
.muted { color: var(--fg-2); }
.faint { color: var(--fg-3); }
.num, td.num, .tabular { font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button { font: inherit; color: inherit; }
img, svg { max-width: 100%; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }
[hidden] { display: none !important; }

/* ---------- chrome ---------- */
.nav {
  position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--wide); margin: 0 auto; display: flex; align-items: center; gap: 1.2rem; min-height: 56px;
  padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px));
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--display); font-weight: 700; letter-spacing: -0.01em; text-decoration: none; color: var(--fg); white-space: nowrap; }
.brand .mark { width: 22px; height: 22px; display: block; }
.brand .ver { font-family: var(--mono); font-weight: 400; font-size: 0.72rem; color: var(--fg-3); padding: 0.1em 0.4em; border: 1px solid var(--line-2); border-radius: 999px; }
.nav-links { display: flex; gap: 0.15rem; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a { color: var(--fg-2); text-decoration: none; font-size: 0.9rem; padding: 0.45rem 0.5rem; border-radius: 4px; white-space: nowrap; }
.nav-links a:hover { color: var(--fg); background: var(--bg-3); }
.nav-links a[aria-current="page"] { color: var(--fg); font-weight: 600; box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.theme-btn { border: 1px solid var(--line-2); background: var(--bg-2); border-radius: 999px; width: 34px; height: 34px; display: inline-grid; place-items: center; cursor: pointer; flex: none; }
.theme-btn svg { width: 16px; height: 16px; }
.theme-btn:hover { background: var(--bg-3); }
.footer { border-top: 1px solid var(--line); margin-top: 4rem; color: var(--fg-2); font-size: 0.9rem; }
.footer-inner { max-width: var(--wide); margin: 0 auto; padding-block: 2rem; padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px)); display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; }
.footer a { color: inherit; }

/* ---------- layout ---------- */
.wrap { max-width: var(--wide); margin: 0 auto; padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px)); }
.read { max-width: var(--read); }
.section { padding-block: 3.2rem; }
.section + .section { border-top: 1px solid var(--line); }
.section.tight { padding-block: 1.6rem; }
.head { display: grid; gap: 0.6rem; margin-bottom: 1.6rem; max-width: var(--read); }
.head .kicker { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.head p.lead { color: var(--fg-2); font-size: 1.02rem; }
.page-head { padding-block: 2.6rem 1.2rem; display: grid; gap: 0.7rem; }
.page-head .kicker { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.page-head p { color: var(--fg-2); max-width: var(--read); font-size: 1.05rem; }
.grid { display: grid; gap: 1rem; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.prose { max-width: var(--read); display: grid; gap: 0.9rem; }
.prose h2 { margin-top: 1.4rem; }
.prose h3 { margin-top: 0.8rem; }
.prose ul, .prose ol { margin: 0; padding-left: 1.3rem; display: grid; gap: 0.35rem; }
.prose li::marker { color: var(--fg-3); }
.prose table { font-size: 0.92rem; }
.callout { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 0.8rem 1rem; border-radius: 0 var(--radius) var(--radius) 0; }
.callout.warn { border-color: var(--warn); background: var(--warn-soft); }
.note { color: var(--fg-2); font-size: 0.9rem; }
.btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.6rem 1rem; border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--bg-2); color: var(--fg); text-decoration: none; font-weight: 500; cursor: pointer; }
.btn:hover { background: var(--bg-3); color: var(--fg); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-2); color: #fff; }
.cta { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.arr { font-family: var(--mono); }

/* ---------- hero ---------- */
.hero { padding-block: 3rem 2.4rem; display: grid; gap: 2rem; grid-template-columns: minmax(0, 1fr); align-items: center; }
@media (min-width: 900px) { .hero { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 3rem; } }
.hero-copy { display: grid; gap: 1.2rem; }
.hero-copy .kicker { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.hero-copy h1 span { display: block; }
.hero-copy h1 em { font-style: normal; color: var(--accent); }
.hero-copy .lead { color: var(--fg-2); font-size: 1.08rem; max-width: 52ch; }
.hero-fig { min-width: 0; }
.hero-fig figcaption { font-size: 0.82rem; color: var(--fg-3); margin-top: 0.4rem; }

/* ---------- big numbers ---------- */
.bignums { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr)); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0; }
.bignums div { padding: 1.2rem 1rem 1.1rem 0; border-right: 1px solid var(--line); display: grid; gap: 0.15rem; align-content: start; }
.bignums div:last-child { border-right: 0; }
.bignums div + div { padding-left: 1rem; }
.bignums dt { font-size: 0.78rem; color: var(--fg-3); order: 2; }
.bignums dd { margin: 0; font-family: var(--display); font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 640; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; order: 1; }
.bignums dd small { font-size: 0.55em; font-weight: 500; color: var(--fg-2); margin-left: 0.15em; }

/* ---------- segmented controls & selects ---------- */
.bar { display: flex; flex-wrap: wrap; gap: 0.6rem 0.8rem; align-items: center; margin-bottom: 1rem; }
.bar .grow { flex: 1; }
.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; background: var(--bg-2); }
.seg button { border: 0; background: transparent; padding: 0.45rem 0.8rem; cursor: pointer; color: var(--fg-2); font-size: 0.9rem; white-space: nowrap; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on, .seg button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
.seg button:hover:not(.on) { background: var(--bg-3); color: var(--fg); }
select.sel, input.inp { font: inherit; font-size: 0.92rem; color: var(--fg); background: var(--bg-2); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 0.42rem 0.6rem; max-width: 100%; }
input.inp { min-width: 0; width: min(100%, 320px); }
.chip { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.78rem; border: 1px solid var(--line-2); border-radius: 999px; padding: 0.1rem 0.55rem; color: var(--fg-2); white-space: nowrap; }
.chip.warn { border-color: var(--warn); color: var(--warn); }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; background: var(--c, var(--s0)); flex: none; }
.legend { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; font-size: 0.82rem; color: var(--fg-2); margin-top: 0.6rem; }
.legend span { display: inline-flex; align-items: center; gap: 0.4rem; }

/* ---------- ability board ---------- */
.board { display: grid; gap: 2px; }
.board-axis, .brow { display: grid; grid-template-columns: minmax(0, 290px) minmax(0, 1fr) 74px; gap: 0.8rem; align-items: center; }
@media (max-width: 900px) { .board-axis, .brow { grid-template-columns: minmax(0, 210px) minmax(0, 1fr) 74px; } }
@media (max-width: 640px) { .board-axis, .brow { grid-template-columns: minmax(0, 140px) minmax(0, 1fr) 60px; gap: 0.5rem; } }
.board-axis { color: var(--fg-3); font-size: 0.74rem; font-family: var(--mono); padding-bottom: 0.3rem; }
.board-axis .ticks { position: relative; height: 14px; }
.board-axis .ticks i { position: absolute; transform: translateX(-50%); font-style: normal; }
.brow { padding: 0.28rem 0.35rem; border-radius: 4px; background: transparent; border: 0; text-align: left; width: 100%; cursor: pointer; }
.brow:hover { background: var(--bg-3); }
.brow.on { background: var(--accent-soft); }
.brow.still { cursor: default; }
.brow.still:hover { background: transparent; }
.bname { display: flex; align-items: center; gap: 0.5rem; min-width: 0; font-size: 0.9rem; }
.bname b { font-weight: 560; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bname .rank { font-family: var(--mono); font-size: 0.72rem; color: var(--fg-3); width: 1.6em; flex: none; text-align: right; }
.track { position: relative; height: 18px; min-width: 0; }
.track .zero { position: absolute; top: -3px; bottom: -3px; left: var(--z); width: 1px; background: var(--line-2); }
.track .bar-fill { position: absolute; top: 3px; height: 12px; left: var(--l); width: var(--w); background: var(--c); border-radius: 0 3px 3px 0; opacity: 0.85; }
.track .bar-fill.neg { border-radius: 3px 0 0 3px; }
.track .whisker { position: absolute; top: 8.5px; height: 1px; left: var(--l); width: var(--w); background: var(--fg); opacity: 0.6; }
.track .dot { position: absolute; top: 5px; width: 8px; height: 8px; border-radius: 50%; background: var(--c); border: 2px solid var(--bg); left: var(--x); transform: translateX(-50%); box-sizing: content-box; }
.bval { font-family: var(--mono); font-size: 0.82rem; text-align: right; white-space: nowrap; }
.bval small { color: var(--fg-3); display: block; font-size: 0.7rem; }
.bdetail { grid-column: 1 / -1; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 0.9rem 1rem; margin: 0.2rem 0 0.6rem; display: grid; gap: 0.8rem; }
.bdetail h4 { display: flex; flex-wrap: wrap; gap: 0.5rem 0.8rem; align-items: baseline; }
.bdetail .stats { display: flex; flex-wrap: wrap; gap: 0.3rem 1.2rem; font-size: 0.86rem; color: var(--fg-2); }
.bdetail .stats b { color: var(--fg); font-family: var(--mono); font-weight: 500; }
.minis { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); gap: 0.35rem 1.2rem; }
.mini { display: grid; grid-template-columns: minmax(0, 1fr) 46px; gap: 0.5rem; align-items: center; font-size: 0.8rem; }
.mini .lab { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--fg-2); }
.mini .val { font-family: var(--mono); text-align: right; }
.mini .bar-mini { height: 4px; background: var(--bg-3); border-radius: 2px; position: relative; overflow: hidden; grid-column: 1 / -1; }
.mini .bar-mini i { position: absolute; top: 0; bottom: 0; background: var(--c, var(--accent)); left: var(--l); width: var(--w); }
.why4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); gap: 1rem; }
.why4 .fig h3 { font-size: 1.05rem; }
ul.spec { margin: 0; padding-left: 1.1rem; display: grid; gap: 0.35rem; font-size: 0.92rem; color: var(--fg-2); }
ul.spec li::marker { color: var(--fg-3); }
.card pre { font-size: 0.74rem; margin: 0; }
.card .sub { font-size: 0.85rem; color: var(--fg-2); }
.rules6 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 1rem; }
.rule { display: grid; gap: 0.35rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.rule h4 { font-size: 0.98rem; }
.rule p { font-size: 0.9rem; color: var(--fg-2); }

/* ---------- cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 1rem; }
.card { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.1rem; display: grid; gap: 0.6rem; align-content: start; min-width: 0; }
.card h3 { font-size: 1.05rem; display: flex; justify-content: space-between; gap: 0.6rem; align-items: baseline; }
.card .src { font-size: 0.82rem; color: var(--fg-3); }
.card dl { display: grid; grid-template-columns: auto 1fr; gap: 0.15rem 0.8rem; margin: 0; font-size: 0.86rem; }
.card dt { color: var(--fg-3); }
.card dd { margin: 0; font-variant-numeric: tabular-nums; }
.card .spark { height: 44px; }
.card .top { font-size: 0.86rem; color: var(--fg-2); }

/* ---------- tables ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; font-size: 0.8rem; color: var(--fg-2); background: var(--bg-3); position: sticky; top: 0; white-space: nowrap; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--fg); }
th.sorted::after { content: " ▾"; color: var(--accent); }
th.sorted.asc::after { content: " ▴"; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: var(--bg-3); }
tbody tr:last-child td { border-bottom: 0; }
.pager { display: flex; gap: 0.6rem; align-items: center; font-size: 0.86rem; color: var(--fg-2); margin-top: 0.6rem; flex-wrap: wrap; }
.pager button { border: 1px solid var(--line-2); background: var(--bg-2); border-radius: 4px; padding: 0.25rem 0.6rem; cursor: pointer; }
.pager button:disabled { opacity: 0.4; cursor: default; }

/* ---------- charts ---------- */
.fig { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; min-width: 0; display: grid; gap: 0.5rem; }
.fig h3 { font-size: 1rem; }
.fig .sub { font-size: 0.85rem; color: var(--fg-2); }
.fig svg { width: 100%; height: auto; display: block; }
.fig .foot { font-size: 0.8rem; color: var(--fg-3); }
svg text { font-family: var(--body); fill: var(--fg-2); font-size: 11px; }
svg text.mono { font-family: var(--mono); }
svg .axis line, svg .axis path { stroke: var(--line-2); stroke-width: 1; }
svg .grid line { stroke: var(--line); stroke-width: 1; }
svg .zero { stroke: var(--fg-3); stroke-width: 1; }
svg .lab { fill: var(--fg); }
svg .mark { cursor: pointer; }
#tip { position: fixed; z-index: 50; pointer-events: none; background: var(--fg); color: var(--bg); font-size: 0.8rem; padding: 0.4rem 0.6rem; border-radius: 4px; max-width: 280px; box-shadow: var(--shadow); line-height: 1.4; }
#tip b { font-weight: 600; }

/* wright map (hero) */
.wright rect.hbar { fill: var(--s1); opacity: 0.85; transform-box: fill-box; transform-origin: right center; }
.wright line.tick { stroke: var(--fg); stroke-width: 1.5; }
.wright text.tlab { font-size: 10.5px; fill: var(--fg); }
.wright .axis-main { stroke: var(--fg-3); stroke-width: 1.2; }
@keyframes grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes drop { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.wright.anim rect.hbar { animation: grow 0.9s cubic-bezier(.2,.7,.2,1) both; animation-delay: calc(var(--i) * 18ms); }
.wright.anim g.model { animation: drop 0.6s ease both; animation-delay: calc(0.5s + var(--i) * 45ms); }

/* loop diagram */
.loop { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 0.8rem; counter-reset: step; }
.loop .step { position: relative; padding: 1rem 1rem 1rem 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); display: grid; gap: 0.35rem; }
.loop .step::before { counter-increment: step; content: counter(step); font-family: var(--mono); font-size: 0.72rem; color: var(--fg-3); }
.loop .step h4 { font-size: 1rem; }
.loop .step p { font-size: 0.88rem; color: var(--fg-2); }
.loop .step::after { content: "→"; position: absolute; right: -0.9rem; top: 50%; transform: translateY(-50%); color: var(--fg-3); font-family: var(--mono); }
.loop .step:last-child::after { content: "↺"; }
@media (max-width: 640px) { .loop .step::after { display: none; } }

/* trust list */
.trust { display: grid; gap: 0.8rem; max-width: var(--read); }
.trust li { display: grid; grid-template-columns: 24px 1fr; gap: 0.7rem; align-items: start; }
.trust ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.8rem; }
.trust .ico { width: 24px; height: 24px; color: var(--accent); }
.trust b { display: block; }
.trust span { color: var(--fg-2); font-size: 0.94rem; }

/* home teasers */
.teaser { display: grid; gap: 1rem; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 820px) { .teaser { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); align-items: start; } }
.teaser .txt { display: grid; gap: 0.7rem; }
.teaser .txt p { color: var(--fg-2); }

/* citation */
.cite { position: relative; }
.cite button { position: absolute; top: 0.5rem; right: 0.5rem; font-size: 0.78rem; border: 1px solid var(--line-2); background: var(--bg-2); border-radius: 4px; padding: 0.2rem 0.5rem; cursor: pointer; }

/* versions */
.timeline { display: grid; gap: 0; max-width: var(--read); }
.timeline .ev { display: grid; grid-template-columns: 110px 1fr; gap: 1rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.timeline .ev time { font-family: var(--mono); font-size: 0.8rem; color: var(--fg-3); padding-top: 0.2rem; }
.timeline .ev h3 { font-size: 1rem; margin-bottom: 0.3rem; }
.timeline .ev p, .timeline .ev li { font-size: 0.92rem; color: var(--fg-2); }
.timeline .ev ul { margin: 0.3rem 0 0; padding-left: 1.2rem; }
@media (max-width: 520px) { .timeline .ev { grid-template-columns: 1fr; gap: 0.2rem; } }

.scale-rule { width: 2px; background: var(--line-2); height: 44px; margin: 0 0 1.2rem 0.3rem; position: relative; }
.scale-rule::before, .scale-rule::after { content: ""; position: absolute; left: -3px; width: 8px; height: 1px; background: var(--fg-3); }
.scale-rule::before { top: 0; } .scale-rule::after { bottom: 0; }
.empty { color: var(--fg-3); font-size: 0.9rem; padding: 1rem; border: 1px dashed var(--line-2); border-radius: var(--radius); }

/* key-value list in cards: stacked, the value in mono under its label */
.card dl.kv, dl.kv { display: block; margin: 0 0 1rem; font-size: 0.9rem; }
dl.kv dt { color: var(--fg-2); margin-top: 0.5rem; }
dl.kv dd { margin: 0.1rem 0 0; font-family: var(--mono); font-size: 0.88rem; }

/* pipeline scene: a wide drawn figure that scrolls sideways on small screens */
.scene { margin: 0; display: grid; gap: 0.8rem; }
.scene .scene-svg { min-width: 960px; width: 100%; height: auto; display: block; font-family: var(--body); }
@media (max-width: 1000px) { .scene { overflow-x: auto; padding-bottom: 0.5rem; } }
.scene figcaption { font-size: 0.86rem; color: var(--fg-2); max-width: var(--read); }

/* ---- home pipeline figure: staged reveal once it scrolls into view (class "anim" set by home.js) ---- */
.pipeline .pp-step, .pipeline .pp-arrow, .pipeline .pp-cell.on, .pipeline .pp-mark, .pipeline .pp-bar, .pipeline .pp-dot { transform-box: fill-box; transform-origin: center; }
@media (prefers-reduced-motion: no-preference) {
  .pipeline.anim .pp-step { opacity: 0; animation: pp-in 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; animation-delay: calc(var(--i) * 0.45s); }
  .pipeline.anim .pp-arrow { opacity: 0; animation: pp-in 0.35s ease-out forwards; animation-delay: calc(var(--i) * 0.45s + 0.4s); }
  .pipeline.anim .pp-mark { opacity: 0; animation: pp-pop 0.25s ease-out forwards; animation-delay: calc(0.45s + 0.35s + var(--j) * 0.045s); }
  .pipeline.anim .pp-cell.on { opacity: 0; animation: pp-pop 0.25s ease-out forwards; animation-delay: calc(0.9s + 0.35s + var(--j) * 0.012s); }
  .pipeline.anim .pp-bar { transform: scaleX(0); transform-origin: right center; animation: pp-grow 0.4s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; animation-delay: calc(1.8s + 0.35s + var(--j) * 0.06s); }
  .pipeline.anim .pp-dot { opacity: 0; animation: pp-pop 0.3s ease-out forwards; animation-delay: calc(1.8s + 0.7s + var(--j) * 0.1s); }
  .pipeline.anim .pp-loop { animation: pp-march 1.4s linear infinite; animation-delay: 2.7s; }
}
@keyframes pp-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes pp-pop { from { opacity: 0; transform: scale(0.6); } to { opacity: 1; transform: none; } }
@keyframes pp-grow { to { transform: none; } }
@keyframes pp-march { from { stroke-dashoffset: 16; } to { stroke-dashoffset: 0; } }

.toggle { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.9rem; color: var(--fg-2); cursor: pointer; }
.toggle input { accent-color: var(--accent); }