:root {
  --ink: #182027;
  --ink-2: #2e3941;
  --paper: #f4f0e7;
  --paper-2: #fffdf7;
  --muted: #68747b;
  --line: #d8d1c3;
  --orange: #ef5f3c;
  --orange-soft: #fee7dc;
  --blue: #2878c8;
  --blue-soft: #e3eef9;
  --green: #16876b;
  --green-soft: #dff2eb;
  --yellow: #d69b23;
  --yellow-soft: #faedc8;
  --red: #c7493a;
  --red-soft: #f9e1dc;
  --grey-soft: #e9e7e1;
  --shadow: 0 20px 60px rgba(28, 36, 42, .11);
  --shadow-small: 0 8px 24px rgba(28, 36, 42, .07);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 4%, rgba(239,95,60,.11), transparent 28rem),
    linear-gradient(rgba(24,32,39,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24,32,39,.035) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 32px 32px, 32px 32px, auto;
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
  z-index: 99;
}

a { color: inherit; }
button { font: inherit; }
.shell { width: min(1240px, calc(100% - 48px)); margin: 0 auto; }
.mono { font-family: "SFMono-Regular", Consolas, monospace; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(216,209,195,.82);
  background: rgba(244,240,231,.88);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: white;
  background: var(--ink);
  border-radius: 11px;
  font: 700 14px/1 Georgia, "Songti SC", serif;
  transform: rotate(-4deg);
}

.brand strong { display: block; font-size: 14px; letter-spacing: .02em; }
.brand small { display: block; margin-top: 2px; color: var(--muted); font: 10px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .12em; }

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  position: relative;
  padding: 10px 11px;
  color: #546169;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.site-nav a:hover { color: var(--ink); background: rgba(255,255,255,.65); }
.site-nav a.active { color: var(--ink); background: var(--paper-2); box-shadow: 0 1px 0 rgba(255,255,255,.9), 0 4px 12px rgba(24,32,39,.06); }
.site-nav a.active::after { content: ""; position: absolute; left: 11px; right: 11px; bottom: 5px; height: 2px; background: var(--orange); }

.nav-toggle { display: none; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper-2); }

.page-main { padding: 34px 0 72px; }
.page-hero {
  position: relative;
  overflow: hidden;
  min-height: 310px;
  padding: 42px 46px;
  color: #fff;
  background: var(--ink);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.page-hero::before { content: ""; position: absolute; width: 560px; height: 560px; right: -180px; top: -340px; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; box-shadow: 0 0 0 70px rgba(255,255,255,.025), 0 0 0 140px rgba(255,255,255,.018); }
.page-hero::after { content: ""; position: absolute; width: 180px; height: 180px; right: 74px; bottom: -110px; background: var(--orange); border-radius: 50%; filter: blur(1px); opacity: .95; }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr); gap: 42px; align-items: end; }
.eyebrow { margin: 0 0 18px; color: #ff9d7c; font: 700 11px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .18em; text-transform: uppercase; }
.page-hero h1 { max-width: 820px; margin: 0; font-family: Georgia, "Songti SC", serif; font-size: clamp(44px, 6vw, 78px); line-height: .98; letter-spacing: -.055em; }
.hero-copy { max-width: 720px; margin: 22px 0 0; color: #bdc8ce; font-size: 16px; line-height: 1.85; }
.hero-status { padding: 19px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16); border-radius: 17px; backdrop-filter: blur(10px); }
.hero-status-label { margin: 0 0 9px; color: #90a0a8; font: 700 10px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .14em; }
.hero-status-value { display: flex; align-items: center; gap: 10px; margin: 0; font-size: 18px; font-weight: 800; }
.hero-status-value i { width: 9px; height: 9px; background: #62d7a0; border-radius: 50%; box-shadow: 0 0 0 6px rgba(98,215,160,.12); }
.hero-status p:last-child { margin: 12px 0 0; color: #9fafb7; font-size: 12px; line-height: 1.7; }

.subhero { min-height: 250px; }
.subhero h1 { font-size: clamp(40px, 5vw, 65px); }

.section { margin-top: 50px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 20px; }
.section-kicker { margin: 0 0 8px; color: var(--orange); font: 800 10px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .18em; text-transform: uppercase; }
.section h2 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: clamp(30px, 3.8vw, 47px); line-height: 1.05; letter-spacing: -.045em; }
.section-note { max-width: 430px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; text-align: right; }

.data-strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; margin-top: 18px; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-small); }
.data-cell { min-height: 126px; padding: 21px; background: rgba(255,253,247,.94); }
.data-value { margin: 0; font: 700 clamp(28px, 3vw, 42px)/1 Georgia, "Songti SC", serif; letter-spacing: -.04em; }
.data-label { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.data-cell .mini { display: block; margin-top: 9px; color: var(--orange); font: 700 9px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .1em; }

.stage-rail { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.stage-rail::before { content: ""; position: absolute; left: 7%; right: 7%; top: 26px; height: 2px; background: var(--line); }
.stage-card { position: relative; z-index: 2; min-height: 205px; padding: 17px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 17px; box-shadow: var(--shadow-small); }
.stage-dot { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 20px; color: white; border: 7px solid var(--paper); border-radius: 50%; font: 800 12px/1 "SFMono-Regular", Consolas, monospace; }
.stage-card.done .stage-dot { background: var(--green); }
.stage-card.current { transform: translateY(-8px); border-color: #ef9d83; box-shadow: 0 18px 40px rgba(239,95,60,.16); }
.stage-card.current .stage-dot { background: var(--orange); animation: pulse 2.2s ease infinite; }
.stage-card.next .stage-dot { background: var(--blue); }
.stage-card.later .stage-dot { color: #7c858a; background: var(--grey-soft); }
.stage-state { margin: 0 0 8px; font: 800 9px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .12em; }
.done .stage-state { color: var(--green); }
.current .stage-state { color: var(--orange); }
.next .stage-state { color: var(--blue); }
.later .stage-state { color: #858e92; }
.stage-card h3 { margin: 0; font-size: 16px; line-height: 1.35; }
.stage-card p:last-child { margin: 10px 0 0; color: var(--muted); font-size: 11px; line-height: 1.65; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 15px; }
.card { padding: 24px; background: rgba(255,253,247,.94); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-small); }
.card h3 { margin: 0; font-size: 18px; line-height: 1.35; }
.card p { color: var(--muted); font-size: 13px; line-height: 1.75; }
.card p:last-child { margin-bottom: 0; }
.card-number { margin: 0 0 18px; color: var(--orange); font: 800 11px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .14em; }
.card-accent { border-top: 4px solid var(--orange); }
.card-blue { border-top: 4px solid var(--blue); }
.card-green { border-top: 4px solid var(--green); }
.card-yellow { border-top: 4px solid var(--yellow); }

.status-badge { display: inline-flex; align-items: center; gap: 7px; width: fit-content; padding: 6px 9px; border-radius: 999px; font: 800 9px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .08em; }
.status-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; }
.verified { color: #0d7259; background: var(--green-soft); }
.verified::before { background: var(--green); }
.candidate { color: #a54a2f; background: var(--orange-soft); }
.candidate::before { background: var(--orange); }
.boundary { color: #8a6718; background: var(--yellow-soft); }
.boundary::before { background: var(--yellow); }
.gap { color: #5d6870; background: var(--grey-soft); }
.gap::before { background: #7a858b; }

.finding-card { display: flex; flex-direction: column; min-height: 275px; }
.finding-card h3 { margin-top: 17px; font-family: Georgia, "Songti SC", serif; font-size: 23px; letter-spacing: -.025em; }
.finding-meta { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); color: #758086; font-size: 11px; line-height: 1.6; }
.finding-meta strong { color: var(--ink); }

.split-panel { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); overflow: hidden; background: var(--paper-2); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-small); }
.split-main { padding: 30px; }
.split-side { padding: 30px; color: #fff; background: var(--ink-2); }
.split-side h3 { margin-top: 0; font-family: Georgia, "Songti SC", serif; font-size: 27px; }
.split-side p, .split-side li { color: #c2ccd1; font-size: 13px; line-height: 1.75; }

.focus-list { list-style: none; margin: 0; padding: 0; }
.focus-list li { display: grid; grid-template-columns: 32px 1fr; gap: 12px; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.11); }
.focus-list li:last-child { border-bottom: 0; }
.focus-list b { display: grid; place-items: center; width: 27px; height: 27px; color: #fff; background: var(--orange); border-radius: 8px; font: 800 10px/1 "SFMono-Regular", Consolas, monospace; }

.flow-line { display: grid; grid-template-columns: repeat(9, minmax(90px, 1fr)); gap: 8px; overflow-x: auto; padding-bottom: 10px; }
.flow-node { position: relative; min-height: 128px; padding: 14px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 15px; }
.flow-node:not(:last-child)::after { content: "→"; position: absolute; right: -10px; top: 50%; z-index: 3; width: 12px; color: var(--orange); font-weight: 900; transform: translateY(-50%); }
.flow-node b { display: block; margin-bottom: 11px; color: var(--orange); font: 800 10px/1 "SFMono-Regular", Consolas, monospace; }
.flow-node span { font-size: 12px; font-weight: 800; line-height: 1.45; }
.flow-node p { margin: 8px 0 0; color: var(--muted); font-size: 10px; line-height: 1.55; }

.formula { padding: 28px; color: white; background: var(--ink); border-radius: 20px; box-shadow: var(--shadow-small); }
.formula-grid { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.formula-chip { padding: 12px 14px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.13); border-radius: 11px; font-size: 13px; font-weight: 800; }
.formula-plus { color: #ff9170; font: 700 19px/1 Georgia, serif; }
.formula p { margin: 17px 0 0; color: #aebbc1; font-size: 12px; line-height: 1.7; }

.ladder { display: grid; gap: 9px; }
.ladder-row { display: grid; grid-template-columns: 60px 170px 1fr; gap: 16px; align-items: center; padding: 14px 17px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 13px; }
.ladder-code { display: grid; place-items: center; width: 42px; height: 32px; color: #fff; background: var(--ink); border-radius: 9px; font: 800 11px/1 "SFMono-Regular", Consolas, monospace; }
.ladder-row:nth-child(3) .ladder-code { background: var(--orange); }
.ladder-row:nth-child(4) .ladder-code { background: var(--blue); }
.ladder-row:nth-child(5) .ladder-code { background: var(--green); }
.ladder-row strong { font-size: 14px; }
.ladder-row span:last-child { color: var(--muted); font-size: 12px; line-height: 1.55; }

.coverage-layout { display: grid; grid-template-columns: 320px 1fr; gap: 22px; }
.donut-card { display: grid; place-items: center; min-height: 350px; }
.donut { position: relative; display: grid; place-items: center; width: 220px; height: 220px; border-radius: 50%; background: conic-gradient(var(--orange) 0 50.6%, var(--blue) 50.6% 80.4%, var(--green) 80.4% 90.5%, var(--yellow) 90.5% 97.5%, #d8d4cc 97.5% 100%); box-shadow: inset 0 0 0 1px rgba(24,32,39,.08); }
.donut::after { content: ""; width: 142px; height: 142px; background: var(--paper-2); border-radius: 50%; box-shadow: 0 0 0 1px var(--line); }
.donut-label { position: absolute; z-index: 2; text-align: center; }
.donut-label strong { display: block; font: 700 46px/1 Georgia, serif; letter-spacing: -.05em; }
.donut-label span { display: block; margin-top: 7px; color: var(--muted); font-size: 11px; }
.legend { margin-top: 22px; width: 100%; }
.legend-row { display: flex; align-items: center; gap: 9px; margin: 8px 0; color: var(--muted); font-size: 11px; }
.legend-row i { width: 9px; height: 9px; border-radius: 3px; }
.legend-row strong { margin-left: auto; color: var(--ink); }

.bar-list { display: grid; gap: 18px; }
.bar-row { display: grid; grid-template-columns: 150px 1fr 72px; gap: 14px; align-items: center; }
.bar-row > span { font-size: 12px; font-weight: 800; }
.bar-track { height: 11px; overflow: hidden; background: #e5e1d8; border-radius: 999px; }
.bar-fill { width: 0; height: 100%; background: var(--orange); border-radius: inherit; transition: width 1s cubic-bezier(.2,.8,.2,1); }
.bar-row:nth-child(2) .bar-fill { background: var(--blue); }
.bar-row:nth-child(3) .bar-fill { background: var(--green); }
.bar-row:nth-child(4) .bar-fill { background: var(--yellow); }
.bar-row:nth-child(5) .bar-fill { background: #79868d; }
.bar-value { color: var(--muted); text-align: right; font: 700 11px/1 "SFMono-Regular", Consolas, monospace; }

.matrix { width: 100%; overflow: hidden; border-collapse: separate; border-spacing: 0; background: var(--paper-2); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-small); }
.matrix th, .matrix td { padding: 14px 15px; border-bottom: 1px solid var(--line); font-size: 12px; text-align: left; vertical-align: top; }
.matrix th { color: #5f6b72; background: #eeebe3; font: 800 10px/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .06em; }
.matrix tr:last-child td { border-bottom: 0; }
.matrix td:first-child { font-weight: 800; }
.maturity { display: inline-flex; min-width: 68px; justify-content: center; padding: 5px 7px; border-radius: 999px; font-size: 10px; font-weight: 800; }
.maturity.focus { color: #a4422b; background: var(--orange-soft); }
.maturity.base { color: #15604e; background: var(--green-soft); }
.maturity.thin { color: #7c641d; background: var(--yellow-soft); }
.maturity.missing { color: #647076; background: var(--grey-soft); }

.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.filter-btn { padding: 9px 13px; color: #59666d; background: rgba(255,253,247,.72); border: 1px solid var(--line); border-radius: 999px; cursor: pointer; font-size: 11px; font-weight: 800; }
.filter-btn:hover, .filter-btn.active { color: white; background: var(--ink); border-color: var(--ink); }
.conclusion-card[hidden] { display: none; }

.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 1px; background: var(--line); }
.timeline-item { position: relative; padding: 0 0 26px 16px; }
.timeline-item::before { content: ""; position: absolute; left: -24px; top: 6px; width: 9px; height: 9px; background: var(--orange); border: 4px solid var(--paper); border-radius: 50%; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item time { color: var(--orange); font: 800 10px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .1em; }
.timeline-item h3 { margin: 7px 0 6px; font-size: 16px; }
.timeline-item p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.7; }

.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li { display: grid; grid-template-columns: 24px 1fr auto; gap: 11px; align-items: start; padding: 14px 0; border-bottom: 1px solid var(--line); }
.checklist li:last-child { border-bottom: 0; }
.check-icon { display: grid; place-items: center; width: 21px; height: 21px; color: white; background: var(--green); border-radius: 7px; font-size: 11px; font-weight: 900; }
.check-icon.pending { color: #775b17; background: var(--yellow-soft); }
.checklist strong { display: block; font-size: 13px; }
.checklist small { display: block; margin-top: 5px; color: var(--muted); font-size: 11px; line-height: 1.55; }
.frequency { color: var(--muted); font: 700 9px/1.3 "SFMono-Regular", Consolas, monospace; white-space: nowrap; }

.artifact-stack { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.artifact-card { position: relative; min-height: 230px; padding: 20px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-small); }
.artifact-card:not(:last-child)::after { content: "→"; position: absolute; right: -12px; top: 50%; z-index: 4; color: var(--orange); font-size: 18px; font-weight: 900; }
.artifact-card .tag { display: inline-flex; padding: 5px 7px; color: var(--orange); background: var(--orange-soft); border-radius: 7px; font: 800 9px/1 "SFMono-Regular", Consolas, monospace; }
.artifact-card h3 { margin: 18px 0 10px; font-family: Georgia, "Songti SC", serif; font-size: 20px; }
.artifact-card p { color: var(--muted); font-size: 11px; line-height: 1.7; }
.artifact-card .artifact-state { position: absolute; left: 20px; bottom: 18px; right: 20px; padding-top: 10px; border-top: 1px solid var(--line); color: var(--green); font: 800 9px/1.2 "SFMono-Regular", Consolas, monospace; }

.link-list { display: grid; gap: 10px; }
.link-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 16px 18px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 13px; text-decoration: none; transition: transform .18s ease, border-color .18s ease; }
.link-row:hover { transform: translateX(4px); border-color: #bcb2a3; }
.link-row strong { font-size: 13px; }
.link-row span { color: var(--muted); font-size: 11px; }
.link-row b { color: var(--orange); font-size: 18px; }

.callout { padding: 22px 24px; color: #fff; background: var(--blue); border-radius: 18px; box-shadow: var(--shadow-small); }
.callout.orange { background: var(--orange); }
.callout.green { background: var(--green); }
.callout h3 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: 24px; }
.callout p { margin: 10px 0 0; color: rgba(255,255,255,.8); font-size: 12px; line-height: 1.7; }

.page-footer { display: flex; justify-content: space-between; gap: 24px; margin-top: 58px; padding: 23px 0 8px; color: #7b858a; border-top: 1px solid var(--line); font: 10px/1.7 "SFMono-Regular", Consolas, monospace; }

.reveal { animation: reveal-rise .55s ease both; }
.reveal:nth-of-type(2) { animation-delay: .06s; }
.reveal:nth-of-type(3) { animation-delay: .12s; }
.reveal:nth-of-type(4) { animation-delay: .18s; }
@keyframes reveal-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(239,95,60,.3); } 50% { box-shadow: 0 0 0 9px rgba(239,95,60,0); } }

@media (max-width: 1080px) {
  .site-nav { display: none; position: absolute; top: 63px; left: 24px; right: 24px; padding: 10px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 15px; box-shadow: var(--shadow); }
  .site-nav.open { display: grid; grid-template-columns: repeat(2, 1fr); }
  .nav-toggle { display: block; }
  .stage-rail { grid-template-columns: repeat(3, 1fr); }
  .stage-rail::before { display: none; }
  .artifact-stack { grid-template-columns: repeat(3, 1fr); }
  .artifact-card::after { display: none; }
  .data-strip { grid-template-columns: repeat(3, 1fr); }
  .data-cell:nth-child(4), .data-cell:nth-child(5) { grid-column: span 1; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 24px, 620px); }
  .page-main { padding-top: 14px; }
  .page-hero { min-height: 0; padding: 30px 24px; border-radius: 21px; }
  .hero-grid { display: block; }
  .hero-status { margin-top: 30px; }
  .section { margin-top: 36px; }
  .section-head { display: block; }
  .section-note { margin-top: 10px; text-align: left; }
  .data-strip { grid-template-columns: repeat(2, 1fr); }
  .data-cell { min-height: 108px; padding: 17px; }
  .data-cell:last-child { grid-column: 1 / -1; }
  .stage-rail, .grid-2, .grid-3, .grid-4, .coverage-layout, .split-panel { grid-template-columns: 1fr; }
  .stage-card.current { transform: none; }
  .split-side { min-height: 260px; }
  .ladder-row { grid-template-columns: 52px 1fr; }
  .ladder-row span:last-child { grid-column: 2; }
  .bar-row { grid-template-columns: 110px 1fr 55px; }
  .artifact-stack { grid-template-columns: 1fr; }
  .artifact-card { min-height: 190px; }
  .matrix-wrap { overflow-x: auto; }
  .matrix { min-width: 720px; }
  .page-footer { display: block; }
  .page-footer span { display: block; margin-top: 5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}