:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #1d1b22;
  --ink-2: #55525e;
  --ink-3: #8a8794;
  --line: #e6e3ec;
  --accent: #6d4ae0;
  --accent-soft: #ece6fd;
  --quant: #0f7b6c;
  --rl: #6d4ae0;
  --sci: #b5541c;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #131218; --surface: #1b1a22; --ink: #ecebf1; --ink-2: #b4b1bf; --ink-3: #7d7a88;
    --line: #2c2a36; --accent: #a991ff; --accent-soft: #2a2343;
    --quant: #4cc2ae; --rl: #a991ff; --sci: #f0915a; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #131218; --surface: #1b1a22; --ink: #ecebf1; --ink-2: #b4b1bf; --ink-3: #7d7a88;
  --line: #2c2a36; --accent: #a991ff; --accent-soft: #2a2343;
  --quant: #4cc2ae; --rl: #a991ff; --sci: #f0915a; color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; line-height: 1.15; }
h2 { font-size: 1.6rem; margin: 0 0 1rem; }
h2.mt { margin-top: 2.5rem; }
main > section, main > section.wrap { margin-bottom: 5rem; }

/* top bar */
.topbar { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.brand { font-family: var(--serif); font-weight: 600; font-size: 1.25rem; color: var(--ink); }
.topbar nav { display: flex; gap: 1.25rem; align-items: center; font-size: 0.92rem; }
.topbar nav a { color: var(--ink-2); }
.topbar nav a:hover { color: var(--ink); text-decoration: none; }
.icon-btn { background: none; border: 1px solid var(--line); color: var(--ink-2); border-radius: 999px;
  width: 32px; height: 32px; cursor: pointer; font-size: 1rem; }
@media (max-width: 600px) { .topbar nav a:not([href$=".pdf"]) { display: none; } }

/* hero */
.hero { display: grid; grid-template-columns: 1.15fr 1fr; gap: 3rem; align-items: center; padding-top: 3rem; }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; gap: 1.5rem; padding-top: 1rem; } }
.eyebrow { font: 500 0.8rem/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); margin: 0 0 1rem; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 3.8rem); margin: 0 0 1.25rem; }
.lede { font-family: var(--serif); font-size: 1.4rem; line-height: 1.4; margin: 0 0 1rem; }
.lede em { color: var(--accent); font-style: italic; }
.sub { color: var(--ink-2); margin: 0 0 1.25rem; }
.status { display: inline-flex; gap: 0.6rem; align-items: center; font-size: 0.9rem; color: var(--ink-2);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 0.4rem 0.9rem; margin: 0 0 1.5rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--quant); flex: none;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--quant) 20%, transparent); }
.cta { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.btn { display: inline-block; padding: 0.6rem 1.1rem; border-radius: 8px; font-weight: 500; font-size: 0.95rem;
  border: 1px solid var(--line); color: var(--ink); background: var(--surface); }
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
:root[data-theme="dark"] .btn.primary { color: #131218; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary { color: #131218; } }
.btn.ghost { background: transparent; }
.hero-fig { margin: 0; }
.hero-fig svg { width: 100%; height: auto; display: block; }
.hero-fig figcaption { font: 0.78rem var(--mono); color: var(--ink-3); text-align: center; margin-top: 0.5rem; }

/* glance */
.glance { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 0; width: calc(100% - 32px); }
@media (min-width: 720px) { .glance { width: calc(100% - 64px); max-width: 1016px; } }
.glance div { background: var(--bg); padding: 1.25rem 1rem; display: flex; flex-direction: column; gap: 0.2rem; }
.glance b { font-family: var(--serif); font-size: 1.6rem; font-weight: 600; }
.glance span { font-size: 0.85rem; color: var(--ink-2); }
@media (max-width: 720px) { .glance { grid-template-columns: repeat(2, 1fr); } }

/* cards */
.section-note { color: var(--ink-2); max-width: 62ch; margin: -0.25rem 0 2rem; }
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (max-width: 760px) { .cards { grid-template-columns: 1fr; } }
.card { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden; color: var(--ink); transition: transform .2s, border-color .2s, box-shadow .2s; }
.card:hover { text-decoration: none; transform: translateY(-3px); border-color: var(--accent);
  box-shadow: 0 12px 30px -18px color-mix(in srgb, var(--accent) 60%, transparent); }
.thumb { aspect-ratio: 16 / 9; background: var(--bg); border-bottom: 1px solid var(--line); }
.thumb svg { width: 100%; height: 100%; display: block; }
.thumb img { width: 100%; height: 100%; display: block; object-fit: cover; }
.card-body { padding: 1.25rem 1.4rem 1.4rem; display: flex; flex-direction: column; flex: 1; }
.card h3 { font-size: 1.35rem; margin: 0.6rem 0 0.5rem; }
.card p { margin: 0 0 0.75rem; color: var(--ink-2); font-size: 0.95rem; }
.card .result { color: var(--ink); border-left: 2px solid var(--accent); padding-left: 0.75rem; }
.card .meta { font: 0.78rem var(--mono); color: var(--ink-3); margin: auto 0 0; padding-top: 0.5rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag { font: 0.72rem/1 var(--mono); padding: 0.3rem 0.5rem; border-radius: 4px; background: var(--bg);
  border: 1px solid var(--line); color: var(--ink-2); }
.tag.quant { color: var(--quant); border-color: currentColor; }
.tag.rl { color: var(--rl); border-color: currentColor; }
.tag.sci { color: var(--sci); border-color: currentColor; }

.card.featured { grid-column: 1 / -1; flex-direction: row; }
.card.featured .thumb { flex: 0 0 46%; aspect-ratio: auto; border-bottom: 0; border-right: 1px solid var(--line); }
.card.featured .card-body { padding: 1.6rem 1.8rem; }
.card.featured h3 { font-size: 1.6rem; }
@media (max-width: 760px) {
  .card.featured { flex-direction: column; }
  .card.featured .thumb { aspect-ratio: 16 / 9; border-right: 0; border-bottom: 1px solid var(--line); }
}

/* publications */
.pubs { list-style: none; padding: 0; margin: 0; counter-reset: p; }
.pubs li { display: grid; grid-template-columns: 1fr auto; gap: 0.15rem 1.5rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.pub-title { font-family: var(--serif); font-size: 1.1rem; }
.pub-authors { grid-column: 1; color: var(--ink-2); font-size: 0.9rem; }
.pub-link { grid-column: 2; grid-row: 1 / 3; align-self: center; font: 0.85rem var(--mono); }
.muted { color: var(--ink-3); }
@media (max-width: 600px) { .pubs li { grid-template-columns: 1fr; } .pub-link { grid-column: 1; grid-row: auto; } }

/* experience */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; gap: 1rem; } }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { padding: 0 0 1.25rem 1rem; border-left: 1px solid var(--line); position: relative; }
.timeline li::before { content: ""; position: absolute; left: -4px; top: 0.45rem; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.when { display: block; font: 0.75rem var(--mono); color: var(--ink-3); }
.where { color: var(--ink-2); font-size: 0.9rem; }
.timeline p { margin: 0.3rem 0 0; color: var(--ink-2); font-size: 0.92rem; }
.aside { color: var(--ink-2); }

footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; padding-top: 2rem !important;
  padding-bottom: 3rem !important; border-top: 1px solid var(--line); font-size: 0.85rem; color: var(--ink-3); }

/* svg viz tokens */
.v-band { fill: var(--accent); }
.v-line { fill: none; stroke: var(--ink); stroke-width: 1.6; }
.v-faint { fill: none; stroke: var(--ink-3); stroke-width: 0.8; opacity: 0.35; }
.v-accent { fill: none; stroke: var(--accent); stroke-width: 2.2; }
.v-axis { stroke: var(--line); stroke-width: 1; }

/* project pages */
.project-head { padding-top: 2rem; max-width: 820px; }
.project-head h1 { font-size: clamp(2.4rem, 5vw, 3.2rem); margin: 0.8rem 0 1rem; }
.project-head .meta { font: 0.8rem var(--mono); color: var(--ink-3); margin-top: 1rem; }
.back { display: inline-block; font-size: 0.9rem; color: var(--ink-2); margin-bottom: 1.5rem; }
.prose { max-width: 820px; }
.prose h2 { margin-top: 3rem; }
.prose p { color: var(--ink-2); font-size: 1.04rem; }
.prose p strong, .prose p em { color: var(--ink); }
.muted-note { font: 0.85rem var(--mono); color: var(--ink-3) !important; }
.diagram { margin: 2rem 0; padding: 1.25rem; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.diagram svg { width: 100%; height: auto; display: block; }
.d-h { font: 600 15px var(--serif); fill: var(--ink); }
.d-note { font: 12px var(--sans); fill: var(--ink-2); }
.d-id { font: 9px var(--mono); fill: var(--ink-3); text-anchor: middle; }
.d-masked { fill: var(--bg); stroke: var(--line); }
.d-legal { fill: var(--accent-soft); stroke: var(--rl); stroke-width: 1.5; }
.d-card { fill: var(--surface); stroke: var(--rl); stroke-width: 1.5; }
.d-new { fill: var(--accent-soft); stroke-dasharray: 4 3; }
.d-card-name { font: 600 9.5px var(--sans); fill: var(--ink); text-anchor: middle; }
.d-card-fx { font: 9px var(--mono); fill: var(--ink-2); text-anchor: middle; }
.d-arrow { fill: none; stroke: var(--rl); stroke-width: 1.5; }
.axes { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.95rem; }
.axes th { text-align: left; font: 500 0.75rem var(--mono); color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.05em; padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--line); }
.axes td { padding: 0.7rem 0.75rem; border-bottom: 1px solid var(--line); color: var(--ink-2); vertical-align: top; }
.axes td:first-child { white-space: nowrap; color: var(--ink); }
.axes b { font-family: var(--mono); color: var(--rl); margin-right: 0.35rem; }
.shot { display: block; margin-top: 2rem; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.shot img { width: 100%; height: auto; display: block; }
.caption, .figure figcaption { font-size: 0.85rem; color: var(--ink-3); margin: 0.6rem 0 0; }
.figure { margin: 2rem 0; }
.figure .shot { margin-top: 0; }
.steps { padding-left: 1.2rem; color: var(--ink-2); }
.steps li { margin-bottom: 0.9rem; line-height: 1.6; }
.steps b { color: var(--ink); }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin: 1.5rem 0; }
.stat-row div { background: var(--surface); padding: 1rem 1.1rem; display: flex; flex-direction: column; gap: 0.3rem; }
.stat-row b { font: 600 1.5rem var(--serif); color: var(--quant); }
.stat-row span { font-size: 0.85rem; color: var(--ink-2); }
@media (max-width: 640px) { .stat-row { grid-template-columns: 1fr; } }
.results td:nth-child(n+2), .results th:nth-child(n+2) { text-align: right; font-family: var(--mono); font-size: 0.88rem; }
.results b { font-family: inherit; color: var(--ink); margin: 0; }
.stat-row.sci b { color: var(--sci); }
.stat-row.rl b { color: var(--rl); }

/* result charts (projects/eidolon-zero/charts.js): prior → search in one hue, two shades
   (validated with the dataviz palette checks: light #9c86ea/#6d4ae0 on #fff, dark #6752b4/#947df3 on #1b1a22) */
:root { --c-prior: #9c86ea; --c-search: #6d4ae0; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --c-prior: #6752b4; --c-search: #947df3; } }
:root[data-theme="dark"] { --c-prior: #6752b4; --c-search: #947df3; }
.prose h3 { font-size: 1.2rem; margin: 2.2rem 0 0.6rem; }
.chart-fig { margin: 1.2rem 0 1.4rem; }
.chart-fig figcaption { font-size: 0.85rem; color: var(--ink-3); margin-top: 0.4rem; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-legend { display: flex; gap: 1.2rem; font-size: 0.85rem; color: var(--ink-2); margin-bottom: 0.4rem; }
.chart-legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 0.4rem; vertical-align: -1px; }
.sw.prior { background: var(--c-prior); } .sw.search { background: var(--c-search); }
.c-grid { stroke: var(--line); stroke-width: 1; }
.c-ref { stroke: var(--ink-3); stroke-width: 1.2; stroke-dasharray: 4 4; }
.c-tick { font: 11px var(--mono); fill: var(--ink-3); }
.c-label { font: 13px var(--sans); fill: var(--ink-2); }
.c-group { font: 600 11px var(--mono); fill: var(--ink-3); text-transform: uppercase; letter-spacing: 0.05em; }
.c-value { font: 600 12px var(--mono); fill: var(--ink); }
.c-stem { stroke: var(--c-prior); stroke-width: 2; }
.c-line { fill: none; stroke: var(--c-search); stroke-width: 2; }
.c-prior { fill: var(--c-prior); stroke: var(--surface); stroke-width: 2; }
.c-search { fill: var(--c-search); stroke: var(--surface); stroke-width: 2; }
.c-hit { fill: transparent; }
.c-hit:hover { fill: var(--line); fill-opacity: 0.35; }
.chart-tip { position: fixed; z-index: 30; pointer-events: none; background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
  padding: 0.45rem 0.6rem; font-size: 0.82rem; color: var(--ink-2); box-shadow: 0 6px 20px -10px rgba(0,0,0,.35); }
.chart-tip b { color: var(--ink); }
.data-table { margin: 0.4rem 0 1.6rem; }
.data-table summary { cursor: pointer; font-size: 0.88rem; color: var(--ink-2); }
/* preliminary results notice */
.prelim { display: flex; gap: 0.6rem; align-items: baseline; margin: 0.6rem 0 1.2rem; padding: 0.6rem 0.85rem; border-radius: 8px;
  border: 1px dashed var(--ink-3); background: var(--surface); font-size: 0.88rem; color: var(--ink-2); }
.prelim b { font: 600 0.72rem var(--mono); text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink); white-space: nowrap; }
.card .prelim-tag { font: 0.7rem var(--mono); color: var(--ink-3); border: 1px dashed var(--ink-3); border-radius: 4px; padding: 0.05rem 0.35rem; margin-left: 0.4rem; white-space: nowrap; }

/* a call-out asking for something (qStorm's data request) */
.ask { margin: 2rem 0; padding: 1.3rem 1.4rem; border: 1px solid var(--accent); border-radius: 12px; background: var(--accent-soft); }
.ask h2 { margin-top: 0; }
.ask p:last-child { margin-bottom: 0; }
.ask ul { margin: 0.6rem 0 1rem; padding-left: 1.2rem; }
.ask li { margin: 0.25rem 0; }
.results tr.group td { padding: 1.1rem 0.75rem 0.4rem; font: 500 0.75rem var(--mono); color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.05em; text-align: left !important; }