/* Lobsenz Research — site styles.
   Tokens first; light theme by default, dark via prefers-color-scheme. */

:root {
  --bg: #F7F6F2;
  --surface: #FFFFFF;
  --surface-2: #EFEEE8;
  --ink: #0D0F14;
  --ink-2: #2B303B;
  --muted: #586070;
  --subtle: #858B97;
  --rule: #E2E0D9;
  --rule-strong: #CBC8BE;
  --accent: #C2410C;
  --accent-ink: #9A3412;
  --accent-soft: rgba(194, 65, 12, 0.08);
  --dot-off: #D6D3CA;
  --band: #0C0E13;
  --band-ink: #EDEDEA;
  --band-muted: #9AA0AB;
  --band-rule: #232731;
  --band-accent: #F2763A;

  --font-serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --fs-display: clamp(2.6rem, 1.4rem + 4.6vw, 4.75rem);
  --fs-h1: clamp(2.2rem, 1.5rem + 2.8vw, 3.4rem);
  --fs-h2: clamp(1.75rem, 1.3rem + 1.6vw, 2.5rem);
  --fs-h3: 1.3rem;
  --fs-lede: clamp(1.08rem, 1rem + 0.35vw, 1.25rem);

  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 32px);
  --radius: 10px;
  --nav-h: 64px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0D12;
    --surface: #12151C;
    --surface-2: #171B23;
    --ink: #ECECE8;
    --ink-2: #C8CCD3;
    --muted: #9AA1AD;
    --subtle: #6F7683;
    --rule: #222731;
    --rule-strong: #2F3542;
    --accent: #F2763A;
    --accent-ink: #F59563;
    --accent-soft: rgba(242, 118, 58, 0.10);
    --dot-off: #2A2F3A;
    --band: #07080B;
    --band-rule: #1C2029;
    color-scheme: dark;
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1rem/1.6 var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent); color: #fff; }
h1, h2, h3, h4 { margin: 0; font-weight: 400; color: var(--ink); text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 6px; }
.skip-link:focus { left: 8px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.eyebrow {
  font: 500 0.75rem/1.2 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow .dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-right: 8px; vertical-align: 1px; }
.mono { font-family: var(--font-mono); }
.serif { font-family: var(--font-serif); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  height: 46px; padding: 0 20px;
  border-radius: 999px; border: 1px solid transparent;
  font: 500 0.95rem/1 var(--font-sans);
  text-decoration: none; cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s, transform .15s;
}
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--ink-2); }
.btn-secondary { border-color: var(--rule-strong); color: var(--ink); background: transparent; }
.btn-secondary:hover { border-color: var(--ink); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 0.875rem; }
.link-arrow { font-weight: 500; text-decoration: none; display: inline-flex; gap: 8px; align-items: center; }
.link-arrow:hover { text-decoration: underline; }
.link-arrow .arrow { transition: transform .2s; }
.link-arrow:hover .arrow { transform: translateX(3px); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.nav.is-scrolled { border-bottom-color: var(--rule); }
.nav-inner { height: 100%; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex-shrink: 0; }
.brand-mark { width: 22px; height: 22px; }
.brand-name { font: 600 1.02rem/1 var(--font-sans); letter-spacing: -0.01em; }
.brand-name span { font-weight: 400; color: var(--muted); }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a {
  padding: 8px 12px; border-radius: 8px;
  font: 450 0.92rem/1 var(--font-sans); color: var(--muted); text-decoration: none;
}
.nav-links a:hover { color: var(--ink); background: var(--surface-2); }
.nav-links a[aria-current="page"] { color: var(--ink); }
.nav-cta { flex-shrink: 0; }
.nav-toggle { display: none; margin-left: auto; width: 40px; height: 40px; border: 1px solid var(--rule); border-radius: 10px; background: transparent; color: var(--ink); cursor: pointer; }
.nav-toggle svg { margin: auto; }

@media (max-width: 860px) {
  .nav-toggle { display: grid; place-items: center; }
  .nav-links, .nav-cta { display: none; }
  .nav.is-open { height: auto; background: var(--bg); border-bottom-color: var(--rule); }
  .nav.is-open .nav-inner { flex-wrap: wrap; padding-top: 12px; padding-bottom: 16px; gap: 12px; height: auto; }
  .nav.is-open .brand { height: 40px; }
  .nav.is-open .nav-links { display: flex; flex-direction: column; width: 100%; order: 3; margin: 0; }
  .nav.is-open .nav-links a { padding: 12px 4px; font-size: 1.05rem; border-bottom: 1px solid var(--rule); border-radius: 0; }
  .nav.is-open .nav-cta { display: inline-flex; order: 4; }
}

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section + .section { border-top: 1px solid var(--rule); }
.section-tight { padding: clamp(48px, 6vw, 80px) 0; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px 64px; align-items: end; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head h2 { font: 400 var(--fs-h2)/1.1 var(--font-serif); letter-spacing: -0.015em; margin-top: 14px; }
.section-head .side { color: var(--muted); max-width: 46ch; justify-self: end; }
@media (max-width: 860px) {
  .section-head { grid-template-columns: minmax(0, 1fr); }
  .section-head .side { justify-self: start; }
}

/* ---------- Hero ---------- */
.hero { padding: clamp(48px, 7vw, 96px) 0 clamp(56px, 7vw, 96px); position: relative; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero h1 { font: 400 var(--fs-display)/1.02 var(--font-serif); letter-spacing: -0.025em; margin: 20px 0 24px; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero .lede { font-size: var(--fs-lede); color: var(--ink-2); max-width: 36em; line-height: 1.55; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }

/* Lattice figure */
.lattice-figure { margin: 0; border: 1px solid var(--rule); border-radius: 14px; background: var(--surface); overflow: hidden; }
.lattice-stage { position: relative; aspect-ratio: 1 / 1; }
.lattice-stage canvas { width: 100%; height: 100%; cursor: crosshair; touch-action: none; }
.lattice-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border-top: 1px solid var(--rule); }
.lattice-toggle { display: inline-flex; padding: 3px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--rule); }
.lattice-toggle button {
  border: 0; background: transparent; color: var(--muted); cursor: pointer;
  font: 500 0.78rem/1 var(--font-mono); padding: 8px 12px; border-radius: 999px; white-space: nowrap;
}
.lattice-toggle button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.08), 0 0 0 1px var(--rule); }
.lattice-readout { font: 500 0.78rem/1.3 var(--font-mono); color: var(--muted); text-align: right; }
.lattice-readout b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.lattice-caption { padding: 0 14px 14px; font-size: 0.8rem; line-height: 1.5; color: var(--muted); }
.lattice-caption a { color: var(--ink-2); }
@media (max-width: 420px) {
  .lattice-bar { flex-direction: column; align-items: stretch; }
  .lattice-readout { text-align: left; }
}

/* ---------- Metrics strip ---------- */
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.metric { padding: 28px 24px 28px 0; }
.metric + .metric { padding-left: 24px; border-left: 1px solid var(--rule); }
.metric .n { font: 400 clamp(2rem, 1.5rem + 1.6vw, 2.75rem)/1 var(--font-serif); letter-spacing: -0.02em; font-variant-numeric: lining-nums; }
.metric .l { margin-top: 10px; font-size: 0.875rem; color: var(--muted); line-height: 1.45; max-width: 26ch; }
@media (max-width: 860px) {
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric:nth-child(3) { padding-left: 0; border-left: 0; }
  .metric:nth-child(n+3) { border-top: 1px solid var(--rule); }
}

/* ---------- Program cards ---------- */
.programs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; }
.program { background: var(--bg); padding: clamp(24px, 3vw, 36px); display: flex; flex-direction: column; gap: 14px; min-height: 300px; transition: background-color .2s; }
.program:hover { background: var(--surface); }
.program-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.program-idx { font: 500 0.75rem/1 var(--font-mono); color: var(--subtle); }
.program-glyph { width: 44px; height: 44px; color: var(--ink); }
.program h3 { font: 400 1.55rem/1.15 var(--font-serif); letter-spacing: -0.01em; }
.program p { color: var(--muted); }
.program .tags { margin-top: auto; padding-top: 8px; }
@media (max-width: 760px) { .programs { grid-template-columns: minmax(0, 1fr); } .program { min-height: 0; } }

.tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.tag { font: 500 0.72rem/1 var(--font-mono); color: var(--ink-2); padding: 6px 9px; border: 1px solid var(--rule); border-radius: 999px; background: var(--surface); white-space: nowrap; }
.status { display: inline-flex; align-items: center; gap: 7px; font: 500 0.72rem/1 var(--font-mono); color: var(--muted); letter-spacing: 0.04em; text-transform: uppercase; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.status.is-done::before { background: #2F9E6A; }
.status.is-wip::before { background: transparent; border: 1.5px solid var(--accent); }

/* ---------- Feature (paper) ---------- */
.feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.feature h3 { font: 400 clamp(1.6rem, 1.2rem + 1.4vw, 2.25rem)/1.15 var(--font-serif); letter-spacing: -0.015em; margin: 16px 0 12px; }
.feature .byline { color: var(--muted); font-size: 0.95rem; }
.feature .abstract { margin-top: 20px; color: var(--ink-2); font-size: 1.04rem; }
.theorem {
  border: 1px solid var(--rule); border-left: 3px solid var(--accent);
  background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 24px; font-family: var(--font-serif); font-size: 1.12rem; line-height: 1.6;
}
.theorem .label { font: 600 0.72rem/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-ink); display: block; margin-bottom: 12px; }
.theorem .mjx-container { font-size: 105% !important; }
.feature-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.code-proof { margin-top: 16px; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--band); color: var(--band-ink); overflow: hidden; }
.code-proof header { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--band-rule); font: 500 0.72rem/1.2 var(--font-mono); color: var(--band-muted); }
.code-proof pre { margin: 0; padding: 16px; font: 400 0.8rem/1.65 var(--font-mono); overflow-x: auto; }
.code-proof .k { color: #F2A36B; } .code-proof .t { color: #9CC7F0; } .code-proof .c { color: #6E7582; } .code-proof .ok { color: #69D19A; }
@media (max-width: 860px) { .feature { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Dark band ---------- */
.band { background: var(--band); color: var(--band-ink); }
.band .eyebrow { color: var(--band-muted); }
.band .section-head h2, .band h3 { color: var(--band-ink); }
.band .section-head .side, .band p { color: var(--band-muted); }
.band .btn-primary { background: var(--band-ink); color: var(--band); }
.band .btn-primary:hover { background: #fff; }
.band .btn-secondary { color: var(--band-ink); border-color: #3A404D; }
.band .btn-secondary:hover { border-color: var(--band-ink); }
.band .tag { background: transparent; border-color: #2C313C; color: #C9CDD4; }
.band + .section { border-top: 0; }

.cases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.case { border: 1px solid var(--band-rule); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 14px; background: rgba(255,255,255,0.015); }
.case .kicker { font: 500 0.72rem/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--band-accent); }
.case h3 { font: 400 1.4rem/1.2 var(--font-serif); }
.case .outcome { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--band-rule); font: 500 0.82rem/1.5 var(--font-mono); color: var(--band-ink); }
@media (max-width: 960px) { .cases { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Services / capabilities ---------- */
.capabilities { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 56px; }
.capability { padding: 28px 0; border-top: 1px solid var(--rule); display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 16px; }
.capability .idx { font: 500 0.78rem/1.9 var(--font-mono); color: var(--subtle); }
.capability h3 { font: 500 1.12rem/1.35 var(--font-sans); letter-spacing: -0.01em; margin-bottom: 8px; }
.capability p { color: var(--muted); }
@media (max-width: 760px) { .capabilities { grid-template-columns: minmax(0, 1fr); } }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; counter-reset: step; }
.step { padding: 24px; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface); }
.step .n { font: 500 0.75rem/1 var(--font-mono); color: var(--accent-ink); }
.step h3 { font: 400 1.35rem/1.2 var(--font-serif); margin: 14px 0 8px; }
.step p { color: var(--muted); font-size: 0.95rem; }
@media (max-width: 860px) { .steps { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Systems list ---------- */
.systems { display: grid; gap: 0; }
.system { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr) minmax(0, 0.8fr); gap: 24px 48px; padding: 36px 0; border-top: 1px solid var(--rule); }
.system:last-child { border-bottom: 1px solid var(--rule); }
.system h3 { font: 400 1.6rem/1.15 var(--font-serif); letter-spacing: -0.01em; margin-top: 10px; }
.system .desc p + p { margin-top: 12px; }
.system .desc p { color: var(--ink-2); }
.system .facts { list-style: none; display: grid; gap: 10px; align-content: start; }
.system .facts li { font-size: 0.875rem; color: var(--muted); padding-left: 16px; position: relative; }
.system .facts li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 6px; height: 1px; background: var(--subtle); }
.system .facts b { color: var(--ink); font-weight: 600; }
.system .links { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 16px; font-size: 0.9rem; }
@media (max-width: 960px) { .system { grid-template-columns: minmax(0, 1fr); gap: 16px; } }

/* ---------- Publications ---------- */
.pubs { list-style: none; border-top: 1px solid var(--rule); }
.pub { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; gap: 8px 32px; padding: 26px 0; border-bottom: 1px solid var(--rule); align-items: baseline; }
.pub .year { font: 500 0.82rem/1.6 var(--font-mono); color: var(--subtle); }
.pub h3 { font: 400 1.28rem/1.3 var(--font-serif); letter-spacing: -0.005em; }
.pub h3 a { text-decoration: none; }
.pub h3 a:hover { text-decoration: underline; }
.pub .authors { margin-top: 6px; font-size: 0.92rem; color: var(--muted); }
.pub .authors b { color: var(--ink-2); font-weight: 500; }
.pub .note { margin-top: 8px; font-size: 0.92rem; color: var(--ink-2); max-width: 70ch; }
.pub .venue { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; font: 500 0.78rem/1.3 var(--font-mono); color: var(--muted); text-align: right; white-space: nowrap; }
.pub .venue a { color: var(--ink); }
@media (max-width: 760px) {
  .pub { grid-template-columns: minmax(0, 1fr); }
  .pub .venue { align-items: flex-start; text-align: left; flex-direction: row; flex-wrap: wrap; gap: 12px; }
}

/* ---------- Notes ---------- */
.notes-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 28px; }
.note-card { display: flex; flex-direction: column; gap: 14px; text-decoration: none; color: inherit; }
.note-card .cover { aspect-ratio: 16 / 10; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--rule); background: var(--band); }
.note-card .cover svg { width: 100%; height: 100%; transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.note-card:hover .cover svg { transform: scale(1.035); }
.note-card .meta { display: flex; gap: 10px; font: 500 0.72rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--subtle); }
.note-card h3 { font: 400 1.22rem/1.3 var(--font-serif); letter-spacing: -0.005em; }
.note-card:hover h3 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
.note-card p { color: var(--muted); font-size: 0.92rem; }
@media (max-width: 960px) { .notes-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .notes-grid { grid-template-columns: minmax(0, 1fr); } }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.filter { border: 1px solid var(--rule); background: transparent; color: var(--muted); border-radius: 999px; padding: 9px 14px; font: 500 0.82rem/1 var(--font-sans); cursor: pointer; }
.filter:hover { color: var(--ink); border-color: var(--rule-strong); }
.filter[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.filter .count { font-family: var(--font-mono); opacity: .6; margin-left: 6px; font-size: .75rem; }

/* ---------- Article ---------- */
.article-head { padding: clamp(40px, 6vw, 80px) 0 32px; }
.article-head .wrap, .article-body .wrap { max-width: 760px; }
.crumb { font: 500 0.82rem/1 var(--font-sans); color: var(--muted); text-decoration: none; display: inline-flex; gap: 8px; margin-bottom: 28px; }
.crumb:hover { color: var(--ink); }
.article-head h1 { font: 400 var(--fs-h1)/1.08 var(--font-serif); letter-spacing: -0.02em; margin: 18px 0 18px; }
.article-head .dek { font-size: var(--fs-lede); color: var(--ink-2); line-height: 1.5; }
.article-head .actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.article-cover { max-width: 1000px; margin: 8px auto 0; padding: 0 var(--gutter); }
.article-cover .cover { aspect-ratio: 21 / 8; border-radius: 14px; overflow: hidden; background: var(--band); }
.article-cover svg { width: 100%; height: 100%; }

.prose { font: 400 1.075rem/1.75 var(--font-serif); color: var(--ink-2); padding: 40px 0 clamp(64px, 8vw, 112px); }
.prose > * + * { margin-top: 1.15em; }
.prose h2 { font: 500 1.45rem/1.25 var(--font-sans); letter-spacing: -0.015em; color: var(--ink); margin-top: 2.2em; }
.prose h3 { font: 600 1.08rem/1.35 var(--font-sans); color: var(--ink); margin-top: 1.8em; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--accent-ink); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 0.4em; }
.prose .display-math { overflow-x: auto; overflow-y: hidden; padding: 6px 0; margin: 1.4em 0; }
.prose figure { margin: 2em 0; }
.prose figure img { border-radius: var(--radius); border: 1px solid var(--rule); background: #fff; margin: 0 auto; }
.prose figcaption { font: 400 0.85rem/1.5 var(--font-sans); color: var(--muted); margin-top: 10px; }
.prose pre { font: 400 0.82rem/1.65 var(--font-mono); background: var(--band); color: var(--band-ink); border-radius: var(--radius); padding: 18px 20px; overflow-x: auto; margin: 1.6em 0; }
.prose code { font-family: var(--font-mono); font-size: 0.88em; }
.prose .refs { font: 400 0.9rem/1.55 var(--font-sans); color: var(--muted); padding-left: 1.4em; }
.prose .refs li + li { margin-top: 8px; }
.prose .refs a { color: var(--muted); }
.prose .download { margin-top: 2em; }
.mjx-container[display="true"] { margin: 0 !important; }
.article-foot { border-top: 1px solid var(--rule); padding: 40px 0 0; margin-top: 3em; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; font-family: var(--font-sans); }
.article-foot a { text-decoration: none; display: flex; flex-direction: column; gap: 6px; max-width: 46%; }
.article-foot a span:first-child { font: 500 0.72rem/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--subtle); }
.article-foot a span:last-child { font: 400 1.05rem/1.35 var(--font-serif); color: var(--ink); }
.article-foot a:hover span:last-child { text-decoration: underline; }
.article-foot .next { text-align: right; margin-left: auto; }
@media (max-width: 620px) { .article-foot a { max-width: 100%; } .article-foot .next { text-align: left; margin-left: 0; } }

/* ---------- Page header ---------- */
.page-head { padding: clamp(56px, 8vw, 104px) 0 clamp(40px, 5vw, 64px); }
.page-head h1 { font: 400 var(--fs-h1)/1.06 var(--font-serif); letter-spacing: -0.02em; margin: 18px 0 20px; max-width: 18ch; }
.page-head .lede { font-size: var(--fs-lede); color: var(--ink-2); max-width: 40em; }

/* ---------- Program detail (research page) ---------- */
.program-detail { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr); gap: 32px 64px; padding: clamp(48px, 6vw, 72px) 0; border-top: 1px solid var(--rule); }
.program-detail h2 { font: 400 var(--fs-h2)/1.1 var(--font-serif); letter-spacing: -0.015em; margin: 14px 0 16px; }
.program-detail .aside { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.program-detail .aside .program-glyph { width: 56px; height: 56px; margin-bottom: 4px; }
.program-detail .body > p { color: var(--ink-2); font-size: 1.05rem; }
.program-detail .body > p + p { margin-top: 14px; }
.program-detail .questions { margin-top: 28px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; list-style: none; }
.program-detail .questions li { border: 1px solid var(--rule); border-radius: var(--radius); padding: 16px 18px; background: var(--surface); font-size: 0.92rem; color: var(--ink-2); }
.program-detail .questions li b { display: block; font: 500 0.72rem/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--subtle); margin-bottom: 8px; }
.program-detail .outputs { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 10px 18px; font-size: 0.92rem; }
@media (max-width: 860px) { .program-detail { grid-template-columns: minmax(0, 1fr); } .program-detail .questions { grid-template-columns: minmax(0, 1fr); } }

/* ---------- About ---------- */
.founder { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr); gap: 32px 72px; }
.founder .card { border: 1px solid var(--rule); border-radius: 14px; background: var(--surface); padding: 28px; align-self: start; position: sticky; top: calc(var(--nav-h) + 24px); }
.founder .monogram { width: 64px; height: 64px; border-radius: 50%; background: var(--band); color: var(--band-ink); display: grid; place-items: center; font: 400 1.6rem/1 var(--font-serif); }
.founder .card h3 { font: 400 1.5rem/1.2 var(--font-serif); margin-top: 18px; }
.founder .card .role { color: var(--muted); margin-top: 4px; }
.founder .card dl { margin: 22px 0 0; display: grid; gap: 14px; }
.founder .card dt { font: 500 0.7rem/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--subtle); }
.founder .card dd { margin: 6px 0 0; font-size: 0.92rem; color: var(--ink-2); }
.founder .card .links { display: flex; gap: 8px; margin-top: 22px; flex-wrap: wrap; }
.founder .bio p { font: 400 1.15rem/1.7 var(--font-serif); color: var(--ink-2); }
.founder .bio p + p { margin-top: 1.1em; }
.founder .bio p:first-child { font-size: 1.35rem; line-height: 1.55; color: var(--ink); }
.timeline { list-style: none; margin-top: 40px; border-top: 1px solid var(--rule); }
.timeline li { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.timeline .when { font: 500 0.78rem/1.7 var(--font-mono); color: var(--subtle); }
.timeline .what b { font-weight: 600; color: var(--ink); }
.timeline .what span { display: block; color: var(--muted); font-size: 0.92rem; margin-top: 2px; }
@media (max-width: 860px) {
  .founder { grid-template-columns: minmax(0, 1fr); }
  .founder .card { position: static; }
  .timeline li { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.principle { border-top: 2px solid var(--ink); padding-top: 20px; }
.principle h3 { font: 400 1.4rem/1.2 var(--font-serif); margin-bottom: 10px; }
.principle p { color: var(--muted); }
@media (max-width: 860px) { .principles { grid-template-columns: minmax(0, 1fr); } }

/* ---------- CTA block ---------- */
.cta-block { display: grid; grid-template-columns: minmax(0, 1.2fr) auto; gap: 32px; align-items: end; }
.cta-block h2 { font: 400 var(--fs-h2)/1.1 var(--font-serif); letter-spacing: -0.015em; margin-top: 14px; max-width: 20ch; }
.cta-block p { color: var(--muted); margin-top: 16px; max-width: 48ch; }
@media (max-width: 760px) { .cta-block { grid-template-columns: minmax(0, 1fr); align-items: start; } }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: 40px 80px; }
.contact-aside dl { margin: 0; display: grid; gap: 22px; }
.contact-aside dt { font: 500 0.72rem/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--subtle); }
.contact-aside dd { margin: 8px 0 0; color: var(--ink-2); }
.form { display: grid; gap: 18px; }
.form .row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: grid; gap: 8px; }
.field label, .field legend { font: 500 0.85rem/1 var(--font-sans); color: var(--ink); }
.field .opt { color: var(--subtle); font-weight: 400; }
.field input, .field textarea, .field select {
  width: 100%; font: 400 1rem/1.4 var(--font-sans); color: var(--ink);
  background: var(--surface); border: 1px solid var(--rule-strong); border-radius: 8px; padding: 12px 14px;
  transition: border-color .15s, box-shadow .15s;
}
.field textarea { min-height: 160px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px var(--accent-soft); }
.topics { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; }
.topic-options { display: flex; flex-wrap: wrap; gap: 8px; }
.topic-options label { cursor: pointer; }
.topic-options input { position: absolute; opacity: 0; pointer-events: none; }
.topic-options span { display: inline-block; padding: 10px 14px; border: 1px solid var(--rule-strong); border-radius: 999px; font-size: 0.88rem; color: var(--ink-2); background: var(--surface); }
.topic-options input:checked + span { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.topic-options input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.form-status { font-size: 0.92rem; min-height: 1.4em; }
.form-status.ok { color: #2F9E6A; }
.form-status.err { color: #C0392B; }
.hp { position: absolute; left: -5000px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } .form .row { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--rule); padding: 56px 0 40px; font-size: 0.9rem; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 0.6fr)); gap: 32px; }
.footer .about { color: var(--muted); max-width: 36ch; margin-top: 16px; }
.footer h4 { font: 500 0.7rem/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--subtle); margin-bottom: 14px; }
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer ul a { color: var(--ink-2); text-decoration: none; }
.footer ul a:hover { color: var(--ink); text-decoration: underline; }
.footer-bottom { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--rule); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--subtle); font: 400 0.8rem/1.4 var(--font-mono); }
@media (max-width: 860px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer-grid > :first-child { grid-column: 1 / -1; } }

/* ---------- Misc ---------- */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { scroll-behavior: auto !important; }
}
.center { text-align: center; }
.mt-8 { margin-top: 48px; }
.muted { color: var(--muted); }
.not-found { min-height: 60vh; display: grid; place-items: center; text-align: center; }
.not-found h1 { font: 400 var(--fs-h1)/1.1 var(--font-serif); margin: 16px 0; }
.lattice-readout { min-width: 22ch; }
.lattice-readout span { color: var(--subtle); font-weight: 400; }

/* Mobile overflow guards */
.form, .field { grid-template-columns: minmax(0, 1fr); }
.field input, .field textarea { min-width: 0; }
.topic-options label { position: relative; }
.topic-options input { left: 0; top: 0; width: 1px; height: 1px; margin: 0; }
@media (max-width: 760px) {
  .pub .venue { white-space: normal; }
  .pub .venue span { overflow-wrap: anywhere; }
}
@media (max-width: 620px) {
  .prose p, .prose li { overflow-x: auto; overflow-y: hidden; }
}