:root {
  --bg: #07090d;
  --bg-deep: #040507;
  --surface: #0e141b;
  --surface-2: #121b24;
  --surface-hot: #15232d;
  --line: rgba(170, 206, 223, 0.16);
  --line-strong: rgba(170, 206, 223, 0.32);
  --ink: #edf5f6;
  --ink-dim: #8ca1ad;
  --ink-faint: #52626d;
  --cyan: #6fe5f2;
  --cyan-deep: #217f92;
  --lime: #98e8aa;
  --violet: #c6a5ff;
  --amber: #f2bd72;
  --rose: #ff8d9b;
  --container: min(1180px, calc(100% - 3rem));
  --radius: 3px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.26);
  --mono: "DM Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Space Grotesk", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 76% 8%, rgba(48, 126, 148, 0.13), transparent 27rem),
    radial-gradient(circle at 11% 32%, rgba(133, 86, 204, 0.08), transparent 24rem),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(126, 184, 202, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 184, 202, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  content: "";
  mask-image: linear-gradient(to bottom, #000, transparent 76%);
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
[hidden] { display: none !important; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }

.page-shell { min-height: 100vh; }
.container { width: var(--container); margin-inline: auto; }
.mono { font-family: var(--mono); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.6rem 0.8rem;
  transform: translateY(-180%);
  border: 1px solid var(--cyan);
  background: var(--surface);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.72rem;
  transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); }

/* Header */
.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(170, 206, 223, 0.11);
  background: rgba(7, 9, 13, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.header-inner { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: 0.7rem; min-width: max-content; }
.brand-mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--cyan-deep);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: -0.08em;
}
.brand-mark span { color: var(--violet); font-size: 1.05rem; }
.brand-copy { display: grid; gap: 0.2rem; }
.brand-copy strong { font-size: 0.82rem; letter-spacing: 0.18em; font-weight: 600; }
.brand-copy small { color: var(--ink-dim); font-family: var(--mono); font-size: 0.57rem; letter-spacing: 0.07em; }
.primary-nav { display: flex; align-items: center; gap: clamp(0.9rem, 2.2vw, 1.8rem); color: var(--ink-dim); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }
.primary-nav a { min-height: 44px; display: inline-flex; align-items: center; transition: color 0.2s ease; }
.primary-nav a:hover { color: var(--cyan); }
.primary-nav .nav-github { border-left: 1px solid var(--line); padding-left: clamp(0.9rem, 2.2vw, 1.8rem); color: var(--ink); }
.primary-nav .nav-github span { margin-left: 0.4rem; color: var(--cyan); font-size: 0.95rem; }
.menu-toggle { display: none; width: 46px; height: 46px; padding: 0.75rem; border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; }
.menu-line { display: block; width: 100%; height: 1px; margin: 0.28rem 0; background: currentColor; transition: transform 0.2s ease; }

/* Shared typography */
.section { padding: clamp(5rem, 10vw, 9rem) 0; }
.section + .section { border-top: 1px solid rgba(170, 206, 223, 0.08); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: clamp(2rem, 5vw, 4rem); }
.section-kicker, .eyebrow { margin: 0 0 0.8rem; color: var(--cyan); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; }
.section-heading h2 { max-width: 720px; margin: 0; font-size: clamp(2rem, 4.5vw, 4.1rem); letter-spacing: -0.055em; line-height: 0.98; font-weight: 500; }
.section-aside { max-width: 300px; margin: 0 0 0.2rem; color: var(--ink-dim); font-family: var(--mono); font-size: 0.7rem; line-height: 1.7; text-transform: uppercase; }

/* Hero */
.hero { position: relative; min-height: min(850px, calc(100svh - 76px)); padding: clamp(5rem, 13vw, 10rem) 0 0; }
.hero-grid { display: grid; min-height: 580px; grid-template-columns: minmax(0, 1fr) minmax(260px, 0.62fr); align-items: center; gap: 4rem; }
.hero-copy { position: relative; z-index: 1; max-width: 720px; }
.hero .eyebrow { display: flex; align-items: center; gap: 0.65rem; }
.pulse-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 5px rgba(152, 232, 170, 0.11), 0 0 20px var(--lime); }
.hero h1 { margin: 1.2rem 0 1.8rem; color: var(--ink); font-size: clamp(4.8rem, 15.5vw, 11.5rem); font-weight: 600; letter-spacing: -0.09em; line-height: 0.75; }
.hero h1 span { color: var(--cyan); text-shadow: 0 0 28px rgba(111, 229, 242, 0.22); }
.hero-lede { max-width: 580px; margin: 0; color: #b3c4ca; font-size: clamp(1.1rem, 1.6vw, 1.35rem); line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2.2rem; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 0.8rem; padding: 0.7rem 1rem; border: 1px solid var(--line-strong); border-radius: var(--radius); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.03em; text-transform: uppercase; transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, transform 0.2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { border-color: var(--cyan); background: var(--cyan); color: #071117; font-weight: 500; }
.button-primary:hover { background: #a0f3fb; border-color: #a0f3fb; }
.button-quiet { color: var(--ink-dim); }
.button-quiet:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(111, 229, 242, 0.05); }
.hero-note { max-width: 550px; margin: 3.5rem 0 0; padding-left: 0.85rem; border-left: 1px solid var(--violet); color: var(--ink-dim); font-size: 0.78rem; line-height: 1.7; }
.hero-note .mono { color: var(--violet); font-size: 0.66rem; letter-spacing: 0.07em; }
.hero-signal { position: relative; width: min(36vw, 420px); aspect-ratio: 1; margin-inline: auto; }
.signal-orbit { position: absolute; inset: 10%; border: 1px solid rgba(111, 229, 242, 0.34); border-radius: 50%; transform: rotate(-22deg) skew(-8deg, 7deg); }
.orbit-one { box-shadow: inset 0 0 24px rgba(111, 229, 242, 0.08), 0 0 38px rgba(111, 229, 242, 0.06); animation: orbit-drift 16s linear infinite; }
.orbit-two { inset: 21%; border-color: rgba(198, 165, 255, 0.35); transform: rotate(55deg) skew(9deg, -5deg); animation: orbit-drift-reverse 12s linear infinite; }
.signal-core { position: absolute; top: 50%; left: 50%; display: grid; width: 104px; height: 104px; place-items: center; transform: translate(-50%, -50%); border: 1px solid var(--cyan); border-radius: 50%; background: radial-gradient(circle, rgba(111, 229, 242, 0.17), rgba(7, 9, 13, 0.94) 66%); box-shadow: 0 0 42px rgba(111, 229, 242, 0.13); color: var(--cyan); font-family: var(--mono); text-align: center; }
.signal-core span { font-size: 1.6rem; letter-spacing: -0.15em; }
.signal-core small { color: var(--ink-dim); font-size: 0.48rem; letter-spacing: 0.11em; line-height: 1.3; }
.signal-readout { position: absolute; display: grid; gap: 0.2rem; color: var(--ink-dim); font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.12em; }
.signal-readout strong { color: var(--ink); font-weight: 400; }
.readout-top { top: 7%; right: -2%; }
.readout-bottom { bottom: 8%; left: 4%; }
.signal-readout::before { position: absolute; top: 0.45rem; width: 26px; height: 1px; background: var(--cyan); content: ""; }
.readout-top { padding-left: 2.2rem; }
.readout-top::before { left: 0; }
.readout-bottom { padding-right: 2.2rem; text-align: right; }
.readout-bottom::before { right: 0; background: var(--violet); }
.metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric { display: grid; gap: 0.25rem; min-height: 92px; align-content: center; padding: 1rem 1.3rem; border-right: 1px solid var(--line); }
.metric:first-child { padding-left: 0; }
.metric:last-child { border-right: 0; }
.metric-value { color: var(--ink); font-size: 1.7rem; letter-spacing: -0.06em; line-height: 1; }
.metric-label { color: var(--ink-dim); font-family: var(--mono); font-size: 0.61rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* Overview */
.overview-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(2rem, 8vw, 8rem); }
.overview-copy { color: #b3c4ca; font-size: 1.02rem; }
.overview-copy > p { max-width: 620px; margin: 0 0 1.4rem; }
.callout { display: flex; gap: 1rem; max-width: 620px; margin-top: 2rem; padding: 1.2rem 1.2rem 1.2rem 0.9rem; border: 1px solid var(--line); border-left: 2px solid var(--violet); background: rgba(198, 165, 255, 0.04); color: var(--ink-dim); font-size: 0.84rem; }
.callout p { margin: 0; }
.callout strong { color: var(--violet); font-weight: 500; }
.callout-mark { color: var(--violet); font-family: var(--mono); font-size: 1.2rem; }
.principle-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; align-self: start; border: 1px solid var(--line); background: var(--line); }
.principle-card { min-height: 180px; padding: 1.3rem; background: var(--surface); }
.principle-index { display: block; margin-bottom: 2rem; color: var(--cyan); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em; }
.principle-card h3 { margin: 0 0 0.7rem; font-size: 1.05rem; font-weight: 500; letter-spacing: -0.02em; }
.principle-card p { margin: 0; color: var(--ink-dim); font-size: 0.8rem; line-height: 1.55; }

/* Current field note */
.section-latest { position: relative; overflow: hidden; background: linear-gradient(135deg, rgba(111, 229, 242, 0.035), rgba(198, 165, 255, 0.035)); }
.section-latest::before { position: absolute; inset: 0; background: radial-gradient(circle at 76% 46%, rgba(111, 229, 242, 0.08), transparent 34rem); content: ""; pointer-events: none; }
.latest-grid { position: relative; display: grid; grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr); align-items: start; gap: clamp(2rem, 6vw, 5rem); }
.latest-copy { color: #b3c4ca; }
.latest-copy > p { margin: 0 0 1.15rem; }
.latest-badges { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 1.4rem; }
.latest-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.rhpc-feature-figure { margin: 0; border: 1px solid var(--line-strong); background: rgba(4, 8, 12, 0.62); box-shadow: var(--shadow); }
.rhpc-feature-figure a { display: block; }
.rhpc-feature-figure img { display: block; width: 100%; height: auto; }
.rhpc-feature-figure figcaption { padding: 0.9rem 1rem; border-top: 1px solid var(--line); color: var(--ink-dim); font-family: var(--mono); font-size: 0.62rem; line-height: 1.65; }
.rhpc-feature-figure figcaption strong { color: var(--amber); font-weight: 500; }

/* Deep research portals */
.section-portals { padding-top: clamp(4rem, 8vw, 7rem); }
.portal-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.portal-card { position: relative; min-height: 280px; padding: 1.5rem; overflow: hidden; background: var(--surface); transition: background 0.2s ease, transform 0.2s ease; }
.portal-card::after { position: absolute; right: -3rem; bottom: -5rem; width: 13rem; height: 13rem; border: 1px solid currentColor; border-radius: 50%; opacity: 0.08; content: ""; }
.portal-card:hover { z-index: 1; transform: translateY(-3px); background: var(--surface-2); }
.portal-index { color: var(--cyan); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.11em; }
.portal-card h3 { max-width: 420px; margin: 3.6rem 0 0.8rem; font-size: clamp(1.35rem, 3vw, 2.1rem); font-weight: 500; letter-spacing: -0.045em; line-height: 1.08; }
.portal-card p { max-width: 500px; margin: 0 0 1.3rem; color: var(--ink-dim); font-size: 0.82rem; }
.portal-card strong { color: var(--cyan); font-family: var(--mono); font-size: 0.62rem; font-weight: 400; text-transform: uppercase; }
.portal-card--papers { color: var(--violet); }
.portal-card--papers .portal-index, .portal-card--papers strong { color: var(--violet); }
.portal-card--findings { color: var(--lime); }
.portal-card--findings .portal-index, .portal-card--findings strong { color: var(--lime); }
.portal-card--log { color: var(--amber); }
.portal-card--log .portal-index, .portal-card--log strong { color: var(--amber); }

/* Evidence-grounded visual explainers */
.visual-key {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.35rem;
  margin: -1.4rem 0 1.6rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  background: rgba(111, 229, 242, 0.025);
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 0.61rem;
  line-height: 1.5;
  text-transform: uppercase;
}
.visual-key strong { color: var(--cyan); font-weight: 500; letter-spacing: 0.08em; }
.visual-key span { display: inline-flex; align-items: center; gap: 0.45rem; }
.visual-key small { flex: 1 1 100%; color: var(--ink-faint); font-size: 0.58rem; }
.key-line { display: inline-block; width: 24px; height: 0; border-top: 1px solid var(--lime); }
.key-line-dashed { border-top-style: dashed; border-color: var(--amber); }
.key-stop { display: inline-block; width: 5px; height: 16px; background: var(--rose); }

.research-figure {
  --visual-accent: var(--cyan);
  margin: 1.25rem 0 0;
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(111, 229, 242, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 229, 242, 0.022) 1px, transparent 1px),
    rgba(4, 8, 12, 0.46);
  background-size: 22px 22px;
}
.visual-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.7rem 0.8rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.7rem;
  line-height: 1.45;
  text-transform: uppercase;
}
.visual-heading span { max-width: 62%; color: var(--ink); letter-spacing: 0.035em; }
.visual-heading em { max-width: 38%; color: var(--amber); font-size: 0.65rem; font-style: normal; letter-spacing: 0.055em; text-align: right; }
.visual-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr);
  align-items: stretch;
  padding: 0.8rem;
}
.visual-step {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 182px;
  flex-direction: column;
  align-items: center;
  padding: 0.75rem 0.45rem 0.65rem;
  border-top: 2px solid var(--lime);
  background: rgba(152, 232, 170, 0.025);
  color: var(--lime);
  text-align: center;
}
.visual-step--hypothesis { border-top-style: dashed; border-color: var(--amber); background: rgba(242, 189, 114, 0.025); color: var(--amber); }
.visual-step--boundary { border-color: var(--violet); background: rgba(198, 165, 255, 0.025); color: var(--violet); }
.visual-step--negative { border-color: var(--rose); background: rgba(255, 141, 155, 0.025); color: var(--rose); }
.visual-glyph { display: block; width: min(100%, 76px); height: 54px; flex: 0 0 54px; overflow: visible; }
.visual-glyph g { fill: none; stroke: currentColor; stroke-width: 1.55; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.visual-glyph .dash { stroke-dasharray: 4 4; }
.visual-glyph .accent { stroke: var(--cyan); stroke-width: 2; }
.visual-step--hypothesis .visual-glyph .accent { stroke: var(--amber); }
.visual-step--boundary .visual-glyph .accent { stroke: var(--violet); }
.visual-step--negative .visual-glyph .accent { stroke: var(--rose); }
.visual-glyph .accent-fill { fill: currentColor; stroke: currentColor; }
.visual-phase { margin-top: 0.45rem; color: currentColor; font-family: var(--mono); font-size: 0.69rem; letter-spacing: 0.07em; line-height: 1.3; text-transform: uppercase; }
.visual-step strong { margin-top: 0.3rem; color: var(--ink); font-size: 0.82rem; font-weight: 500; line-height: 1.25; }
.visual-step small { margin-top: 0.25rem; color: var(--ink-dim); font-size: 0.7rem; line-height: 1.4; }
.visual-arrow { display: grid; place-items: center; color: var(--line-strong); font-family: var(--mono); font-size: 1rem; }
.visual-arrow.is-dashed { color: var(--amber); opacity: 0.7; }
.research-figure figcaption { margin: 0; padding: 0.7rem 0.8rem 0.8rem; border-top: 1px dashed var(--line); color: var(--ink-dim); font-size: 0.75rem; line-height: 1.5; }
.research-figure figcaption::before { color: var(--cyan); font-family: var(--mono); font-size: 0.69rem; letter-spacing: 0.07em; content: "WHAT THIS SHOWS // "; }
.research-figure--lane { margin-top: 1.1rem; }
.research-figure--lane .visual-heading { min-height: 54px; }
.research-figure--lane .visual-flow { padding: 0.55rem; grid-template-columns: minmax(0, 1fr) 13px minmax(0, 1fr) 13px minmax(0, 1fr); }
.research-figure--lane .visual-step { min-height: 182px; padding-inline: 0.28rem; }
.research-figure--lane .visual-glyph { width: min(100%, 62px); height: 46px; flex-basis: 46px; }
.research-figure--lane .visual-step strong { font-size: 0.76rem; }
.research-figure--lane .visual-step small { font-size: 0.69rem; }
.research-figure--lane figcaption { font-size: 0.7rem; }

/* Lanes */
.lane-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: transparent; }
.lane-card { position: relative; display: flex; min-height: 500px; flex-direction: column; padding: 1.4rem; overflow: hidden; background: var(--surface); box-shadow: 0 0 0 1px var(--line); }
.lane-card::after { position: absolute; right: -1.5rem; bottom: -2.2rem; width: 130px; height: 130px; border: 1px solid var(--lane-color, var(--cyan)); border-radius: 50%; opacity: 0.22; content: ""; }
.lane-top { display: flex; justify-content: space-between; gap: 1rem; }
.lane-index { color: var(--lane-color, var(--cyan)); font-family: var(--mono); font-size: 0.62rem; }
.lane-state { color: var(--lane-color, var(--cyan)); font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.08em; text-transform: uppercase; }
.lane-card h3 { max-width: 250px; margin: 1.5rem 0 0.6rem; font-size: 1.3rem; font-weight: 500; letter-spacing: -0.04em; }
.lane-card p { max-width: 310px; margin: 0; color: var(--ink-dim); font-size: 0.82rem; line-height: 1.6; }
.lane-meta { display: flex; align-items: center; gap: 0.6rem; margin-top: auto; padding-top: 1.5rem; color: var(--ink-faint); font-family: var(--mono); font-size: 0.59rem; text-transform: uppercase; }
.lane-meta strong { color: var(--ink); font-weight: 400; }
.lane-link { position: relative; z-index: 1; display: inline-flex; margin-top: 0.85rem; color: var(--lane-color, var(--cyan)); font-family: var(--mono); font-size: 0.64rem; }

/* Timeline */
.timeline { position: relative; border-left: 1px solid var(--line-strong); }
.timeline-item { position: relative; display: grid; grid-template-columns: 145px minmax(0, 1fr) auto; gap: 2rem; padding: 0 0 3.4rem 2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { position: absolute; top: 0.35rem; left: -5px; width: 9px; height: 9px; border: 1px solid var(--bg); border-radius: 50%; background: var(--timeline-color, var(--cyan)); box-shadow: 0 0 0 4px rgba(111, 229, 242, 0.08); content: ""; }
.timeline-date { color: var(--timeline-color, var(--cyan)); font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; }
.timeline-copy h3 { margin: 0 0 0.45rem; font-size: 1.2rem; font-weight: 500; letter-spacing: -0.03em; }
.timeline-copy p { max-width: 650px; margin: 0; color: var(--ink-dim); font-size: 0.86rem; }
.timeline-status { align-self: start; color: var(--timeline-color, var(--cyan)); font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.08em; text-align: right; text-transform: uppercase; }

/* Status */
.status-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.status-card { min-height: 185px; padding: 1.4rem; background: var(--surface); }
.status-card .status-count { display: block; margin-bottom: 1rem; color: var(--status-color, var(--cyan)); font-size: 2.2rem; letter-spacing: -0.08em; line-height: 1; }
.status-card h3 { margin: 0 0 0.55rem; font-size: 0.93rem; font-weight: 500; }
.status-card p { margin: 0; color: var(--ink-dim); font-size: 0.76rem; line-height: 1.55; }
.status-legend { display: grid; grid-template-columns: repeat(4, auto minmax(0, 1fr)); align-items: center; gap: 0.65rem 0.8rem; margin-top: 1.4rem; color: var(--ink-dim); font-family: var(--mono); font-size: 0.63rem; line-height: 1.55; }
.status-legend strong { color: var(--ink); font-weight: 400; }
.legend-mark { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }
.legend-validated { background: var(--lime); box-shadow: 0 0 10px rgba(152, 232, 170, 0.55); }
.legend-unconfirmed { background: var(--amber); box-shadow: 0 0 10px rgba(242, 189, 114, 0.4); }
.legend-blocked { background: var(--rose); box-shadow: 0 0 10px rgba(255, 141, 155, 0.4); }
.legend-closed { background: var(--violet); box-shadow: 0 0 10px rgba(198, 165, 255, 0.4); }

/* Working papers */
.section-drafts { padding-top: 1rem; }
.draft-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 0.7fr); gap: 2rem; align-items: start; margin-bottom: 2rem; color: var(--ink-dim); font-size: 0.9rem; line-height: 1.65; }
.draft-intro > p { max-width: 690px; margin: 0; }
.draft-notice { display: flex; gap: 0.8rem; align-items: flex-start; padding: 1rem; border: 1px solid rgba(242, 189, 114, 0.35); background: rgba(242, 189, 114, 0.05); color: var(--ink-dim); font-family: var(--mono); font-size: 0.64rem; line-height: 1.6; text-transform: uppercase; }
.draft-notice-mark { flex: 0 0 auto; color: var(--amber); letter-spacing: 0.12em; }
.draft-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.draft-card { min-width: 0; padding: 1.45rem; border-top: 2px solid var(--draft-color, var(--amber)); background: var(--surface); }
.draft-card-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.7rem; }
.draft-date { color: var(--ink-faint); font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.06em; }
.draft-state { color: var(--amber); font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.06em; text-align: right; }
.draft-card h3 { margin: 1.2rem 0 0.6rem; font-size: clamp(1.12rem, 2vw, 1.5rem); font-weight: 500; letter-spacing: -0.04em; line-height: 1.12; }
.draft-lede { margin: 0; color: var(--ink); font-size: 0.88rem; line-height: 1.55; }
.draft-abstract { margin: 1rem 0 0; color: var(--ink-dim); font-size: 0.78rem; line-height: 1.62; }
.draft-meta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.1rem; padding-top: 0.8rem; border-top: 1px solid var(--line); color: var(--draft-color, var(--cyan)); font-family: var(--mono); font-size: 0.58rem; line-height: 1.5; text-transform: uppercase; }
.draft-meta span + span::before { margin-right: 0.75rem; color: var(--line-strong); content: "/"; }
.draft-list { margin-top: 1.1rem; }
.draft-list h4 { margin: 0 0 0.45rem; color: var(--draft-color, var(--cyan)); font-family: var(--mono); font-size: 0.61rem; font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; }
.draft-list ul { margin: 0; padding-left: 1.1rem; color: var(--ink-dim); font-size: 0.76rem; line-height: 1.55; }
.draft-list li + li { margin-top: 0.35rem; }
.draft-links { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.2rem; padding-top: 0.9rem; border-top: 1px dashed var(--line); }
.draft-links a { color: var(--cyan); font-family: var(--mono); font-size: 0.61rem; line-height: 1.4; }
.draft-links a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.draft-read { color: var(--draft-color, var(--cyan)) !important; }
.draft-empty { padding: 4rem 1rem; border: 1px solid var(--line); background: var(--surface); text-align: center; }
.draft-empty h3 { margin: 0 0 0.3rem; font-size: 1.1rem; font-weight: 500; }
.draft-empty p { margin: 0; color: var(--ink-dim); font-size: 0.82rem; }

/* Archive */
.archive-heading { margin-bottom: 2rem; }
.archive-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; margin-bottom: 2rem; }
.search-box { position: relative; flex: 1 1 280px; min-width: 260px; }
.search-box input { width: 100%; min-height: 46px; padding: 0.75rem 0.85rem 0.75rem 2.6rem; border: 1px solid var(--line-strong); border-radius: var(--radius); outline: 0; background: var(--surface); color: var(--ink); font-family: var(--mono); font-size: 0.72rem; }
.search-box input::placeholder { color: var(--ink-faint); }
.search-box input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(111, 229, 242, 0.09); }
.search-icon { position: absolute; z-index: 1; top: 50%; left: 0.9rem; transform: translateY(-50%); color: var(--cyan); font-family: var(--mono); font-size: 1.1rem; pointer-events: none; }
.filter-group { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.filter-chip { min-height: 42px; padding: 0.55rem 0.75rem; border: 1px solid var(--line); border-radius: var(--radius); background: transparent; color: var(--ink-dim); cursor: pointer; font-family: var(--mono); font-size: 0.61rem; letter-spacing: 0.03em; text-transform: uppercase; transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease; }
.filter-chip:hover, .filter-chip[aria-pressed="true"] { border-color: var(--chip-color, var(--cyan)); background: color-mix(in srgb, var(--chip-color, var(--cyan)) 9%, transparent); color: var(--chip-color, var(--cyan)); }
.active-filter { margin: -0.7rem 0 1rem; color: var(--ink-dim); font-family: var(--mono); font-size: 0.64rem; }
.active-filter button { margin-left: 0.45rem; padding: 0; border: 0; background: transparent; color: var(--cyan); cursor: pointer; font-family: var(--mono); font-size: inherit; }
.archive-source-note { margin: -0.35rem 0 1.1rem; color: var(--ink-faint); font-family: var(--mono); font-size: 0.61rem; line-height: 1.55; }
.archive-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.archive-card { position: relative; min-width: 0; padding: 1.45rem; background: var(--surface); transition: background 0.2s ease; }
.archive-card:hover { background: var(--surface-2); }
.archive-card[hidden] { display: none; }
.archive-card-top { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; }
.archive-date { color: var(--ink-faint); font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.06em; }
.badge, .inline-badge { display: inline-flex; align-items: center; width: max-content; padding: 0.26rem 0.42rem; border: 1px solid currentColor; border-radius: 2px; font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.06em; line-height: 1.2; text-transform: uppercase; }
.badge-validated { color: var(--lime); background: rgba(152, 232, 170, 0.06); }
.badge-unconfirmed { color: var(--amber); background: rgba(242, 189, 114, 0.06); }
.badge-blocked { color: var(--rose); background: rgba(255, 141, 155, 0.06); }
.badge-closed { color: var(--violet); background: rgba(198, 165, 255, 0.06); }
.archive-card h3 { margin: 1.25rem 0 0.55rem; font-size: clamp(1.1rem, 2vw, 1.42rem); font-weight: 500; letter-spacing: -0.04em; line-height: 1.13; }
.archive-card h3 a:hover { color: var(--cyan); }
.archive-lede { margin: 0; color: var(--ink-dim); font-size: 0.84rem; line-height: 1.58; }
.archive-meta { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.3rem; color: var(--ink-faint); font-family: var(--mono); font-size: 0.59rem; text-transform: uppercase; }
.archive-meta span + span::before { margin-right: 0.8rem; color: var(--line-strong); content: "/"; }
.archive-details { margin-top: 1.5rem; border-top: 1px solid var(--line); }
.archive-details summary { padding-top: 0.85rem; color: var(--cyan); cursor: pointer; font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.04em; list-style: none; text-transform: uppercase; }
.archive-details summary::-webkit-details-marker { display: none; }
.archive-details summary::after { float: right; content: "+"; color: var(--ink-dim); font-size: 0.9rem; }
.archive-details[open] summary::after { content: "−"; }
.archive-body { padding-top: 1rem; color: #b3c4ca; font-size: 0.82rem; }
.archive-body p { margin: 0 0 0.85rem; }
.archive-body p:last-child { margin-bottom: 0; }
.archive-links { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1rem; padding-top: 0.8rem; border-top: 1px dashed var(--line); }
.archive-links a, .text-link { color: var(--cyan); font-family: var(--mono); font-size: 0.64rem; }
.archive-links a:hover, .text-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.archive-empty { padding: 5rem 1rem; border: 1px solid var(--line); background: var(--surface); text-align: center; }
.empty-mark { display: block; margin-bottom: 1rem; color: var(--rose); font-family: var(--mono); font-size: 2rem; }
.archive-empty h3 { margin: 0 0 0.3rem; font-size: 1.2rem; font-weight: 500; }
.archive-empty p { margin: 0 0 1.4rem; color: var(--ink-dim); font-size: 0.83rem; }
.noscript-note { margin-top: 1rem; padding: 1rem; border: 1px solid var(--line); color: var(--ink-dim); font-family: var(--mono); font-size: 0.68rem; }
.noscript-note a { color: var(--cyan); }

/* Method and footer */
.section-method { padding-top: 0; }
.method-panel { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 3rem; padding: clamp(1.4rem, 4vw, 2.8rem); border: 1px solid var(--line-strong); background: linear-gradient(115deg, rgba(111, 229, 242, 0.06), rgba(198, 165, 255, 0.04)); }
.method-panel h2 { max-width: 390px; margin: 0; font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 500; letter-spacing: -0.055em; line-height: 1; }
.method-copy { color: var(--ink-dim); font-size: 0.87rem; }
.method-copy p { margin: 0 0 1.2rem; }
.method-copy .inline-badge { margin-inline: 0.2rem; vertical-align: 0.08em; font-size: 0.53rem; }
.site-footer { padding: 2.5rem 0; border-top: 1px solid var(--line); background: rgba(4, 5, 7, 0.6); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr auto; align-items: center; gap: 2rem; }
.footer-brand .brand-mark { width: 34px; height: 34px; }
.footer-grid > p { margin: 0; color: var(--ink-faint); font-family: var(--mono); font-size: 0.61rem; line-height: 1.6; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: end; gap: 1rem; color: var(--ink-dim); font-family: var(--mono); font-size: 0.62rem; }
.footer-links a:hover { color: var(--cyan); }

@keyframes orbit-drift { from { transform: rotate(-22deg) skew(-8deg, 7deg); } to { transform: rotate(338deg) skew(-8deg, 7deg); } }
@keyframes orbit-drift-reverse { from { transform: rotate(55deg) skew(9deg, -5deg); } to { transform: rotate(-305deg) skew(9deg, -5deg); } }

@media (max-width: 900px) {
  :root { --container: min(100% - 2rem, 720px); }
  .header-inner { min-height: 68px; }
  .menu-toggle { display: block; }
  .primary-nav { position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 0.5rem var(--container); border-bottom: 1px solid var(--line); background: rgba(7, 9, 13, 0.98); }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { min-height: 48px; border-bottom: 1px solid rgba(170, 206, 223, 0.08); }
  .primary-nav .nav-github { padding-left: 0; border-left: 0; border-bottom: 0; }
  .hero { min-height: auto; padding-top: 5rem; }
  .hero-grid { min-height: 0; grid-template-columns: 1fr; gap: 4rem; }
  .hero-signal { width: min(70vw, 360px); }
  .metric-strip { margin-top: 5rem; }
  .latest-grid { grid-template-columns: 1fr; }
  .lane-grid, .status-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > p { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 640px) {
  :root { --container: calc(100% - 1.5rem); }
  .section { padding: 4.8rem 0; }
  .section-heading { display: block; }
  .section-aside { margin-top: 1rem; }
  .hero h1 { max-width: 100%; margin-top: 1.1rem; font-size: clamp(3.05rem, 15.7vw, 5.8rem); }
  .hero-lede { font-size: 1.05rem; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .latest-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .hero-note { margin-top: 2.5rem; }
  .hero-signal { width: min(82vw, 320px); }
  .metric-strip { grid-template-columns: repeat(2, 1fr); margin-top: 4rem; }
  .metric { min-height: 78px; padding: 0.9rem 0.8rem; }
  .metric:first-child { padding-left: 0.8rem; }
  .metric:nth-child(2) { border-right: 0; }
  .metric:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .overview-grid, .principle-grid, .lane-grid, .status-grid, .draft-grid, .archive-grid, .method-panel, .footer-grid { grid-template-columns: 1fr; }
  .portal-grid { grid-template-columns: 1fr; }
  .draft-intro { grid-template-columns: 1fr; }
  .principle-card { min-height: 150px; }
  .lane-card { min-height: 220px; }
  .visual-key { align-items: flex-start; margin-top: -0.6rem; }
  .visual-key strong, .visual-key small { flex-basis: 100%; }
  .visual-flow, .research-figure--lane .visual-flow { grid-template-columns: 1fr; gap: 0.3rem; }
  .visual-step, .research-figure--lane .visual-step { min-height: 132px; display: grid; grid-template-columns: 76px minmax(0, 1fr); grid-template-rows: auto auto auto; align-items: center; column-gap: 0.7rem; padding: 0.7rem; text-align: left; }
  .visual-glyph, .research-figure--lane .visual-glyph { grid-row: 1 / 4; width: 70px; height: 52px; }
  .visual-phase { align-self: end; margin-top: 0; }
  .visual-step strong, .research-figure--lane .visual-step strong { align-self: center; margin-top: 0.1rem; font-size: 0.82rem; }
  .visual-step small, .research-figure--lane .visual-step small { align-self: start; margin-top: 0; font-size: 0.7rem; }
  .visual-arrow { height: 18px; transform: rotate(90deg); }
  .visual-heading { display: grid; }
  .visual-heading span, .visual-heading em { max-width: none; text-align: left; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.5rem; padding-left: 1.25rem; padding-bottom: 2.5rem; }
  .timeline-status { text-align: left; }
  .status-legend { grid-template-columns: auto minmax(0, 1fr); }
  .archive-controls { display: grid; }
  .search-box { min-width: 0; }
  .filter-group { width: 100%; }
  .filter-chip { flex: 1 1 auto; }
  .footer-grid > p { grid-column: auto; grid-row: auto; }
  .footer-links { justify-content: start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

@supports not (color: color-mix(in srgb, white, black)) {
  .filter-chip:hover, .filter-chip[aria-pressed="true"] { background: rgba(111, 229, 242, 0.09); }
}