/* ==========================================================================
   NeuroScale / Scaling Neuro — editorial "scientific manuscript" aesthetic
   ========================================================================== */
:root {
  --plum:      #29203c;   /* dark aubergine bands */
  --plum-deep: #211a30;
  --cream:     #ebe4c6;   /* parchment */
  --cream-2:   #f1ebd2;
  --paper:     #ece5c9;
  --white:     #fcfbf5;   /* warm white bands */
  --ink:       #211f1b;   /* text on light */
  --ink-soft:  #57513f;
  --ink-faint: #8b866f;   /* mono labels on light */
  --sage:      #a6bbaf;   /* accent */
  --sage-deep: #7f9a8b;
  --sage-line: #869c8f;
  --cream-txt: #ece5c9;   /* text on plum */
  --cream-mut: #b7ad93;   /* muted on plum */
  --lav-mut:   #9186ad;   /* mono labels on plum */
  --black:     #0a0a0b;

  --rule-l:    rgba(33,31,27,0.28);   /* hairline on light */
  --rule-d:    rgba(236,229,201,0.22);/* hairline on dark  */
  --frame-l:   #211f1b;
  --frame-d:   rgba(236,229,201,0.5);

  --serif: 'EB Garamond', 'Iowan Old Style', Georgia, 'Times New Roman', serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --maxw:  1240px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body {
  margin: 0;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--plum);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-weight: 600; line-height: 1.06; margin: 0; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
a { color: inherit; text-decoration: none; }
svg { display: block; }

/* ---------- reusable atoms ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 5vw, 64px); }
.band { padding: clamp(64px, 10vw, 132px) 0; position: relative; }
.band-plum  { background: var(--plum);  color: var(--cream-txt); }
.band-cream { background: var(--cream); color: var(--ink); background-image: repeating-linear-gradient(135deg, rgba(33,31,27,.028) 0 1px, transparent 1px 7px); }
.band-white { background: var(--white); color: var(--ink); }

.label {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-faint);
}
.band-plum .label { color: var(--lav-mut); }

.display {
  font-size: clamp(2.6rem, 8vw, 6rem);
  font-weight: 600; line-height: 0.98; letter-spacing: -0.02em;
}
.display-i { font-style: italic; }
.h-sec { font-size: clamp(1.9rem, 4.4vw, 3.1rem); text-transform: uppercase; letter-spacing: -0.005em; }
.lede  { font-size: clamp(1.1rem, 1.7vw, 1.35rem); color: var(--ink-soft); max-width: 62ch; }
.band-plum .lede { color: var(--cream-mut); }

.rule { height: 1px; background: var(--rule-l); border: 0; }
.band-plum .rule { background: var(--rule-d); }
.rule-2 { border: 0; border-top: 1px solid var(--rule-l); border-bottom: 1px solid var(--rule-l); height: 6px; }
.band-plum .rule-2 { border-color: var(--rule-d); }

/* framed "figure" plate */
.figure { border: 1px solid var(--frame-l); background: transparent; }
.band-plum .figure { border-color: var(--frame-d); }
.figure-cap { font-family: var(--mono); font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-faint); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--mono); font-size: 13px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase;
  padding: 15px 26px; cursor: pointer; transition: background .2s, color .2s, transform .15s; border: 1px solid var(--frame-l);
  background: transparent; color: var(--ink);
}
.btn:hover { transform: translateY(-1px); }
.btn-sage { background: var(--sage); color: var(--plum-deep); border-color: var(--sage); box-shadow: inset 0 0 0 1px rgba(41,32,60,.35), inset 0 0 0 5px var(--sage); }
.btn-sage:hover { background: #b6c9be; border-color: #b6c9be; }
.btn-plum { background: var(--plum); color: var(--cream-txt); border-color: var(--plum); }
.btn-plum:hover { background: var(--plum-deep); }
.btn-outline-d { border-color: var(--frame-d); color: var(--cream-txt); }
.btn-outline-d:hover { background: rgba(236,229,201,.08); }
.btn svg { fill: none; stroke: currentColor; }

/* mono meta chips */
.mchip { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; padding: 3px 9px; border: 1px solid var(--rule-l); color: var(--ink-soft); }
.band-plum .mchip, .on-dark .mchip { border-color: var(--rule-d); color: var(--cream-mut); }
.mchip-sage { color: var(--sage-deep); border-color: var(--sage-deep); }
.mchip-bold { color: #6f7f9a; border-color: #6f7f9a; }
.mchip-dwi  { color: #8a6f9a; border-color: #8a6f9a; }
.mchip-hi   { color: #9a7f4a; border-color: #9a7f4a; }
.mchip-real { color: var(--sage-deep); border-color: var(--sage-deep); background: color-mix(in srgb, var(--sage) 12%, transparent); }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  display: flex; align-items: center; gap: 20px;
  padding: 16px clamp(20px, 5vw, 64px);
  transition: background .3s, border-color .3s, padding .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: color-mix(in srgb, var(--plum) 92%, transparent); backdrop-filter: blur(12px); border-bottom-color: var(--rule-d); padding-top: 11px; padding-bottom: 11px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--serif); font-weight: 600; font-size: 18px; letter-spacing: .16em; text-transform: uppercase; color: var(--cream-txt); }
.brand-mark { color: var(--sage); }
.brand-mark svg { fill: none; stroke: currentColor; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--cream-mut); transition: color .18s; }
.nav-links a:hover { color: var(--cream-txt); }
.nav .btn { padding: 10px 18px; }

/* ---------- hero ---------- */
.hero { padding-top: 120px; padding-bottom: 90px; overflow: hidden; }
.hero-art { max-width: 900px; margin: 0 auto 6px; }
.hero-art svg { width: 100%; height: auto; }
.hero-line { stroke: var(--sage-line); stroke-width: 1.4; fill: none; }
.hero-line-dim { stroke: rgba(236,229,201,.22); stroke-width: 1.2; fill: none; }
.hero-dash { stroke: var(--cream-mut); stroke-width: 1.2; fill: none; stroke-dasharray: 3 6; opacity: .6; }
.hero-inner { text-align: center; max-width: 1000px; margin: 0 auto; }
.hero-eyebrow { margin-bottom: 30px; }
.hero-title { color: var(--cream-txt); margin-bottom: 26px; }
.hero-rules { max-width: 640px; margin: 0 auto 26px; }
.hero-sub { font-size: clamp(1.3rem, 2.4vw, 1.9rem); font-style: italic; color: var(--sage); margin-bottom: 26px; }
.hero-para { font-size: clamp(1.05rem, 1.7vw, 1.28rem); color: var(--cream-mut); max-width: 60ch; margin: 0 auto 40px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats { display: flex; justify-content: center; gap: 0; flex-wrap: wrap; border-top: 1px solid var(--rule-d); border-bottom: 1px solid var(--rule-d); max-width: 820px; margin: 0 auto; }
.hero-stats > div { flex: 1; min-width: 180px; padding: 24px 20px; text-align: center; }
.hero-stats > div + div { border-left: 1px solid var(--rule-d); }
.hero-stats .stat-num { font-size: clamp(1.9rem, 3.5vw, 2.7rem); font-weight: 600; color: var(--cream-txt); font-feature-settings: "tnum"; }
.hero-stats .stat-lab { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--lav-mut); margin-top: 6px; }

/* ---------- split section (scarcity / vision) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; }
.split > div { padding: clamp(56px, 8vw, 110px) clamp(28px, 5vw, 76px); }
.split-cream { background: var(--cream); background-image: repeating-linear-gradient(135deg, rgba(33,31,27,.028) 0 1px, transparent 1px 7px); }
.split-white { background: var(--white); }
.split .label { margin-bottom: 28px; display: block; }
.split .h-sec { margin-bottom: 24px; max-width: 12ch; }
.split .lede { font-size: 1.12rem; margin-bottom: 40px; }

/* the 0.01% print progress bar */
.progfig { padding: 34px 30px 26px; }
.progfig .figure-cap { display: block; margin-bottom: 16px; }
.progbar { height: 30px; border: 1px solid var(--frame-l); display: flex; padding: 4px; }
.progbar > span { display: block; height: 100%; background: var(--ink); width: 0; transition: width 1.4s cubic-bezier(.2,.8,.2,1); }
.in-view .progbar > span { width: var(--pw, 4%); }
.prog-scale { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; color: var(--ink-faint); margin-top: 10px; }

/* scaling comparison bars */
.scalebars { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 16px; }
.scalebars li { display: grid; gap: 7px; }
.sb-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.sb-label { font-size: 1rem; }
.sb-label em { font-style: normal; color: var(--ink-faint); font-size: .88em; }
.sb-val { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; color: var(--ink-soft); white-space: nowrap; }
.sb-track { height: 9px; border: 1px solid var(--rule-l); }
.sb-fill { display: block; height: 100%; width: 0; transition: width 1.3s cubic-bezier(.2,.8,.2,1); }
.in-view .sb-fill { width: var(--fw, 0%); }
.sb-a { background: var(--ink-soft); } .sb-b { background: var(--ink-faint); }
.sb-c { background: repeating-linear-gradient(90deg, var(--sage-deep) 0 3px, transparent 3px 5px); }
.sb-d { background: var(--sage-deep); }

/* line-art figure (vision archive) */
.linefig { display: grid; place-items: center; padding: 40px 20px 26px; }
.linefig svg { width: 100%; max-width: 340px; height: auto; }
.lf-stroke { stroke: var(--sage-line); fill: none; stroke-width: 1.3; }
.lf-dash { stroke: var(--ink-faint); fill: none; stroke-width: 1.1; stroke-dasharray: 3 5; }
.lf-hatch { stroke: var(--sage-deep); stroke-width: 1; }
.linefig .figure-cap { margin-top: 22px; text-align: center; }

/* ---------- why-necessary: curve plate + points ---------- */
.plate-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(30px, 5vw, 64px); align-items: center; }
.curve-plate { padding: 26px 28px 20px; }
.curve-plate .figure-cap { display: block; margin-bottom: 14px; }
.curve-svg { width: 100%; height: auto; }
.axis { stroke: var(--rule-l); stroke-width: 1.2; }
.band-plum .axis { stroke: var(--rule-d); }
.axis-label { fill: var(--ink-faint); font-family: var(--mono); font-size: 11px; letter-spacing: .1em; }
.band-plum .axis-label { fill: var(--lav-mut); }
.curve-line { stroke: var(--sage-line); stroke-width: 2.4; fill: none; stroke-dasharray: 720; stroke-dashoffset: 720; }
.in-view .curve-line { animation: draw 1.9s ease forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.marker circle { fill: var(--plum); stroke-width: 2.4; }
.band-white .marker circle, .band-cream .marker circle { fill: var(--white); }
.marker text { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; }
.marker-now circle { stroke: var(--ink); } .marker-now text { fill: var(--ink-soft); }
.marker-target circle { stroke: var(--sage-deep); } .marker-target text { fill: var(--sage-deep); }
.band-plum .marker-now circle { stroke: var(--cream-mut); } .band-plum .marker-now text { fill: var(--cream-mut); }
.arrow { stroke: var(--ink-faint); stroke-width: 1.4; fill: none; stroke-dasharray: 3 5; }

.points { display: grid; gap: 0; }
.point { display: grid; grid-template-columns: auto 1fr; gap: 18px; padding: 22px 0; border-top: 1px solid var(--rule-l); }
.band-plum .point { border-color: var(--rule-d); }
.point:last-child { border-bottom: 1px solid var(--rule-l); }
.band-plum .point:last-child { border-bottom-color: var(--rule-d); }
.point-no { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--ink-faint); padding-top: 5px; }
.point h4 { font-size: 1.3rem; margin-bottom: 4px; }
.point p { font-size: 1rem; color: var(--ink-soft); margin: 0; }
.band-plum .point p { color: var(--cream-mut); }

/* ---------- pipeline (numbered manifesto) ---------- */
.manifesto { display: grid; grid-template-columns: repeat(5, 1fr); }
.manifesto.cols-4 { grid-template-columns: repeat(4, 1fr); }
.mani { padding: 0 clamp(16px, 2vw, 28px); border-left: 1px solid var(--rule-l); }
.band-plum .mani { border-color: var(--rule-d); }
.mani:first-child { border-left: 0; padding-left: 0; }
.mani-no { font-family: var(--mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 22px; }
.band-plum .mani-no { color: var(--lav-mut); }
.mani-no .num { color: var(--sage-deep); }
.band-plum .mani-no .num { color: var(--sage); }
.mani h4 { font-size: 1.5rem; margin-bottom: 14px; }
.mani p { font-size: 1rem; color: var(--ink-soft); margin: 0; }
.band-plum .mani p { color: var(--cream-mut); }
.mani-note { margin-top: 12px; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--sage-deep); }
.band-plum .mani-note { color: var(--sage); }

/* ---------- the neural vault (archive + viewer) ---------- */
.vault-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 0; border: 1px solid var(--frame-l); }
.band-plum .vault-grid { border-color: var(--frame-d); }
.vault-left { padding: 0; border-right: 1px solid var(--frame-l); display: flex; flex-direction: column; min-height: 520px; }
.band-plum .vault-left { border-color: var(--frame-d); }
.vault-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 16px 20px; border-bottom: 1px solid var(--rule-l); }
.band-plum .vault-head { border-color: var(--rule-d); }
.vault-head .label { color: var(--ink-faint); }
.band-plum .vault-head .label { color: var(--lav-mut); }
.filters { display: flex; gap: 0; border-bottom: 1px solid var(--rule-l); }
.band-plum .filters { border-color: var(--rule-d); }
.filt { flex: 1; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); padding: 11px 6px; border: 0; border-left: 1px solid var(--rule-l); background: transparent; cursor: pointer; transition: background .15s, color .15s; }
.band-plum .filt { border-color: var(--rule-d); color: var(--lav-mut); }
.filt:first-child { border-left: 0; }
.filt:hover { color: var(--ink); }
.band-plum .filt:hover { color: var(--cream-txt); }
.filt.is-active { background: var(--sage); color: var(--plum-deep); }
.browser-list { flex: 1; overflow-y: auto; max-height: 520px; }
.sc-group { font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); padding: 16px 20px 6px; }
.band-plum .sc-group { color: var(--lav-mut); }
.scan-card { display: block; width: 100%; text-align: left; background: transparent; border: 0; border-top: 1px solid var(--rule-l); padding: 12px 20px; cursor: pointer; font-family: var(--mono); transition: background .14s; }
.band-plum .scan-card { border-color: var(--rule-d); }
.scan-card:hover { background: rgba(134,156,143,.14); }
.scan-card.sc-real { box-shadow: inset 3px 0 0 var(--sage-deep); background: color-mix(in srgb, var(--sage) 7%, transparent); }
.scan-card.is-active { background: var(--sage); color: var(--plum-deep); }
.scan-card.is-active .sc-sub, .scan-card.is-active .sc-size { color: var(--plum-deep); }
.sc-row { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.sc-name { font-size: 13px; color: var(--ink); }
.band-plum .sc-name { color: var(--cream-txt); }
.scan-card.is-active .sc-name { color: var(--plum-deep); }
.sc-size { font-size: 11px; color: var(--ink-faint); }
.sc-sub { font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-faint); margin-top: 4px; display: flex; gap: 8px; flex-wrap: wrap; }
.sc-muted .sc-name { color: var(--ink-faint); }

/* viewer (black instant-view panel) */
.vault-right { background: var(--black); color: var(--cream-txt); display: flex; flex-direction: column; }
.viewer-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 18px; border-bottom: 1px solid rgba(236,229,201,.14); }
.viewer-head .label { color: var(--lav-mut); }
.viewer-title { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; color: var(--sage); }
.viewer-stage { position: relative; flex: 1; min-height: 380px; background: radial-gradient(circle at 50% 45%, #14141a, #060608 78%); }
#brainCanvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.viewer-empty { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; color: var(--cream-mut); text-align: center; padding: 24px; }
.viewer-empty svg { stroke: var(--sage-deep); fill: none; opacity: .7; }
.viewer-empty p { max-width: 300px; font-size: 1rem; font-style: italic; }
.viewer-empty code { font-family: var(--mono); font-size: 11px; font-style: normal; color: var(--sage); }
.viewer-loading { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px; background: rgba(6,6,8,.68); backdrop-filter: blur(2px); }
.load-ring { width: 46px; height: 46px; border-radius: 50%; border: 2px solid rgba(166,187,175,.25); border-top-color: var(--sage); animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
#loadLog { margin: 0; font-family: var(--mono); font-size: 11.5px; color: var(--cream-mut); text-align: center; line-height: 1.9; min-height: 96px; letter-spacing: .02em; }
.viewer-metaoverlay { position: absolute; top: 16px; left: 18px; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; color: var(--sage); line-height: 1.8; text-shadow: 0 1px 3px #000; }
.viewer-hud { position: absolute; left: 18px; right: 18px; bottom: 14px; display: flex; justify-content: space-between; gap: 12px; pointer-events: none; }
.hud-pill { font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em; color: var(--cream-mut); }
.hud-drag { color: var(--lav-mut); }
.viewer-controls { display: flex; align-items: center; gap: 18px; padding: 14px 18px; border-top: 1px solid rgba(236,229,201,.14); flex-wrap: wrap; }
.ctrl { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--cream-mut); }
.ctrl input[type=range] { -webkit-appearance: none; appearance: none; width: 84px; height: 2px; background: rgba(236,229,201,.25); outline: none; }
.ctrl input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%; background: var(--sage); cursor: pointer; }
.ctrl input[type=range]::-moz-range-thumb { width: 12px; height: 12px; border: 0; border-radius: 50%; background: var(--sage); cursor: pointer; }
.ctrl-btn { margin-left: auto; width: 34px; height: 34px; display: grid; place-items: center; color: var(--cream-mut); background: transparent; border: 1px solid rgba(236,229,201,.22); cursor: pointer; transition: all .15s; }
.ctrl-btn svg { fill: none; stroke: currentColor; }
.ctrl-btn.is-active { color: var(--plum-deep); background: var(--sage); border-color: var(--sage); }

/* stat cards under vault */
.statcards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 26px; }
.statcard { border: 1px solid var(--frame-l); padding: 22px 24px; }
.band-plum .statcard { border-color: var(--frame-d); }
.statcard .label { display: block; margin-bottom: 12px; }
.statcard .sc-val { font-size: 1.55rem; font-weight: 600; line-height: 1.1; }
.statcard .sc-val small { font-size: .95rem; color: var(--ink-soft); }
.band-plum .statcard .sc-val small { color: var(--cream-mut); }

/* ---------- contribute (script) ---------- */
.contribute { text-align: center; }
.contribute .display { color: var(--cream-txt); margin-bottom: 26px; }
.contribute .hero-para { margin-bottom: 44px; }
.terminal { max-width: 900px; margin: 0 auto 30px; border: 1px solid var(--frame-d); text-align: left; }
.term-tabs { display: flex; border-bottom: 1px solid var(--rule-d); }
.term-tab { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--lav-mut); background: transparent; border: 0; border-left: 1px solid var(--rule-d); padding: 13px 20px; cursor: pointer; transition: color .15s, background .15s; }
.term-tab:first-child { border-left: 0; }
.term-tab:hover { color: var(--cream-txt); }
.term-tab.is-active { color: var(--plum-deep); background: var(--sage); }
.term-body { background: rgba(0,0,0,.22); }
.term-pane { display: none; margin: 0; padding: 26px 28px; font-family: var(--mono); font-size: 13.5px; line-height: 1.95; color: var(--cream-txt); overflow-x: auto; white-space: pre; letter-spacing: .01em; }
.term-pane.is-active { display: block; }
.c-com { color: var(--lav-mut); } .c-p { color: var(--sage); } .c-str { color: #c9b88f; } .c-ok { color: var(--sage); }
.c-hi { color: #c9a2d9; } .c-dim { color: var(--cream-mut); } .c-skip { color: #c9a06a; } .c-kw { color: var(--sage); }
.term-cap { font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--lav-mut); padding: 12px 18px; border-bottom: 1px solid var(--rule-d); }
.contribute-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.contribute-actions .btn-sage { min-width: 320px; }
.term-foot { font-family: var(--mono); font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--lav-mut); }
.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; max-width: 1000px; margin: 56px auto 0; text-align: left; }
.benefit { padding: 0 clamp(14px, 2vw, 26px); border-left: 1px solid var(--rule-d); }
.benefit:first-child { border-left: 0; padding-left: 0; }
.benefit h5 { font-size: 1.15rem; margin-bottom: 6px; color: var(--cream-txt); }
.benefit p { font-size: .95rem; color: var(--cream-mut); margin: 0; }

/* ---------- footer manifesto ---------- */
.foot-mani .mani-no { margin-bottom: 20px; }
.foot-mani h4 { font-size: 1.35rem; margin-bottom: 12px; }
.foot-mani p { font-size: .98rem; }
.foot-mani .fchips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.plusmark { display: grid; place-items: center; margin: clamp(50px,7vw,90px) 0 30px; }
.plusmark svg { stroke: var(--ink-faint); fill: none; }
.foot-legal { text-align: center; font-family: var(--mono); font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); line-height: 2; }
.foot-brand { text-align: center; font-family: var(--serif); font-style: italic; font-size: 1.6rem; color: var(--ink); margin-bottom: 8px; }

.badge-demo { display: inline-block; font-family: var(--mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; padding: 2px 8px; border: 1px solid var(--sage-deep); color: var(--sage-deep); margin-left: 8px; vertical-align: middle; }
.band-plum .badge-demo { border-color: var(--sage); color: var(--sage); }

/* toast */
.toast { position: fixed; bottom: 28px; left: 50%; transform: translate(-50%, 20px); background: var(--plum-deep); border: 1px solid var(--sage-deep); color: var(--cream-txt); font-family: var(--mono); font-size: 12px; letter-spacing: .06em; padding: 13px 22px; opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; z-index: 100; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.8,.2,1); }
.reveal.in-view { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .nav-links { display: none; }
  .plate-grid { grid-template-columns: 1fr; gap: 40px; }
  .manifesto, .manifesto.cols-4 { grid-template-columns: repeat(2, 1fr); gap: 36px 0; }
  .mani { border-left: 0; padding-left: 0; }
  .statcards { grid-template-columns: repeat(2, 1fr); }
  .benefits { grid-template-columns: 1fr; gap: 28px; }
  .benefit { border-left: 0; padding-left: 0; }
}
@media (max-width: 760px) {
  body { font-size: 18px; }
  .split { grid-template-columns: 1fr; }
  .vault-grid { grid-template-columns: 1fr; }
  .vault-left { border-right: 0; border-bottom: 1px solid var(--frame-l); }
  .band-plum .vault-left { border-color: var(--frame-d); }
  .manifesto, .manifesto.cols-4, .statcards { grid-template-columns: 1fr; }
  .hero-stats > div + div { border-left: 0; border-top: 1px solid var(--rule-d); }
  .contribute-actions .btn-sage { min-width: 0; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ==========================================================================
   2026 concept direction: accessible first-viewport story + live theme lab
   ========================================================================== */

html[data-theme="whiteboard"] {
  --plum: #f7f6ef;
  --plum-deep: #ecebe3;
  --cream: #fffdf5;
  --cream-2: #fbf8ec;
  --paper: #fffdf5;
  --white: #ffffff;
  --ink: #18355f;
  --ink-soft: #4d6380;
  --ink-faint: #78879a;
  --sage: #f2c94c;
  --sage-deep: #2166d1;
  --sage-line: #ed5d56;
  --cream-txt: #18355f;
  --cream-mut: #526886;
  --lav-mut: #8a5a44;
  --black: #101820;
  --rule-l: rgba(24, 53, 95, .22);
  --rule-d: rgba(24, 53, 95, .18);
  --frame-l: #18355f;
  --frame-d: rgba(24, 53, 95, .52);
  --serif: 'DM Sans', sans-serif;
}

html[data-theme="fieldnote"] {
  --plum: #173a31;
  --plum-deep: #0d2a23;
  --cream: #f0e7ce;
  --cream-2: #f7f0dc;
  --paper: #f0e7ce;
  --white: #fffaf0;
  --ink: #162c25;
  --ink-soft: #435b51;
  --ink-faint: #718077;
  --sage: #ff6937;
  --sage-deep: #b33d19;
  --sage-line: #85c3b3;
  --cream-txt: #fff6dd;
  --cream-mut: #c7d5c7;
  --lav-mut: #8bb5a9;
  --black: #081b17;
  --rule-l: rgba(22, 44, 37, .28);
  --rule-d: rgba(255, 246, 221, .28);
  --frame-l: #173a31;
  --frame-d: rgba(255, 246, 221, .62);
  --serif: 'DM Sans', sans-serif;
}

html[data-theme="whiteboard"] .display-i,
html[data-theme="fieldnote"] .display-i,
html[data-theme="whiteboard"] .hero-para em,
html[data-theme="fieldnote"] .hero-para em { font-style: normal; }

html[data-theme="whiteboard"] .band-plum {
  background-color: var(--plum);
  background-image:
    linear-gradient(90deg, transparent 0 72px, rgba(237,93,86,.12) 73px 74px, transparent 75px),
    linear-gradient(rgba(33,102,209,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33,102,209,.055) 1px, transparent 1px);
  background-size: 100% 100%, 30px 30px, 30px 30px;
}
html[data-theme="whiteboard"] .hero::after {
  background:
    radial-gradient(ellipse at 73% 39%, rgba(242,201,76,.16), transparent 27%),
    linear-gradient(103deg, rgba(247,246,239,.96) 0 42%, transparent 74%);
}
html[data-theme="whiteboard"] .band-cream {
  background-image:
    radial-gradient(rgba(24,53,95,.09) .7px, transparent .7px),
    linear-gradient(90deg, transparent 0 72px, rgba(237,93,86,.10) 73px 74px, transparent 75px);
  background-size: 7px 7px, 100% 100%;
}
html[data-theme="whiteboard"] .hero-statement,
html[data-theme="whiteboard"] .hero-scale > h2,
html[data-theme="whiteboard"] .h-sec,
html[data-theme="whiteboard"] .display,
html[data-theme="whiteboard"] .foot-brand {
  font-family: 'Patrick Hand', 'Comic Sans MS', cursive;
  font-weight: 400;
}
html[data-theme="whiteboard"] .hero-statement { color: #2166d1; transform: rotate(-.35deg); letter-spacing: -.025em; }
html[data-theme="whiteboard"] .hero-scale { transform: rotate(.18deg); }
html[data-theme="whiteboard"] .hero-scale > h2 { font-size: clamp(2.35rem, 4vw, 3.7rem); letter-spacing: -.01em; }
html[data-theme="whiteboard"] .label,
html[data-theme="whiteboard"] .hero-provenance,
html[data-theme="whiteboard"] .scale-kicker { color: #8a5a44; }
html[data-theme="whiteboard"] .vault-grid,
html[data-theme="whiteboard"] .terminal,
html[data-theme="whiteboard"] .access-policy {
  background: rgba(255,255,255,.46);
  box-shadow: 3px 4px 0 rgba(33,102,209,.18);
  outline: 1px dashed rgba(33,102,209,.42);
  outline-offset: 4px;
}
html[data-theme="whiteboard"] .btn-sage {
  background: linear-gradient(transparent 15%, rgba(242,201,76,.78) 16% 88%, transparent 89%);
  color: #18355f;
  border-color: #18355f;
  box-shadow: none;
}
html[data-theme="whiteboard"] .scale-network,
html[data-theme="whiteboard"] .scale-ukb { background: #f2c94c; }
html[data-theme="whiteboard"] .scale-openneuro { background: #2166d1; }
html[data-theme="whiteboard"] .scale-hcp { background: #ed5d56; }
html[data-theme="whiteboard"] .plot-curve,
html[data-theme="whiteboard"] .plot-forecast { stroke: #2166d1; }
html[data-theme="whiteboard"] .plot-future { stroke: #ed5d56; }
html[data-theme="whiteboard"] .theme-switcher { background: rgba(255,253,245,.93); box-shadow: 3px 3px 0 rgba(33,102,209,.16); }
html[data-theme="whiteboard"] .theme-option.is-active { background: rgba(242,201,76,.38); }

html[data-theme="fieldnote"] .band-plum {
  background-color: var(--plum);
  background-image:
    linear-gradient(rgba(255,246,221,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,246,221,.035) 1px, transparent 1px);
  background-size: 28px 28px;
}
html[data-theme="fieldnote"] .band-cream {
  background-image:
    radial-gradient(rgba(22,44,37,.12) .7px, transparent .7px),
    linear-gradient(90deg, transparent 0 47px, rgba(255,105,55,.12) 48px 49px, transparent 50px);
  background-size: 6px 6px, 100% 100%;
}
html[data-theme="fieldnote"] .brand { font-family: var(--mono); font-weight: 500; }
html[data-theme="fieldnote"] .hero-statement { letter-spacing: -.055em; }
html[data-theme="fieldnote"] .h-sec { text-transform: none; letter-spacing: -.045em; }
html[data-theme="fieldnote"] .vault-grid,
html[data-theme="fieldnote"] .terminal,
html[data-theme="fieldnote"] .access-policy {
  box-shadow: 5px 5px 0 color-mix(in srgb, var(--sage) 72%, transparent);
}
html[data-theme="fieldnote"] .btn-sage { box-shadow: 4px 4px 0 #0d2a23; }
html[data-theme="fieldnote"] .mchip,
html[data-theme="fieldnote"] .badge-demo { border-width: 2px; }
html[data-theme="fieldnote"] .scale-track { border: 1px solid rgba(255,246,221,.48); }
html[data-theme="fieldnote"] .scale-network i { border-color: rgba(13,42,35,.62); }

.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 200;
  padding: 10px 14px; background: var(--sage); color: var(--plum-deep);
  font: 600 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em;
  transform: translateY(-160%); transition: transform .18s;
}
.skip-link:focus { transform: translateY(0); }

:focus-visible { outline: 3px solid var(--sage); outline-offset: 3px; }

.theme-switcher {
  position: fixed; right: 18px; top: 76px; z-index: 80;
  display: flex; align-items: center; gap: 12px;
  padding: 8px; color: var(--cream-txt); background: color-mix(in srgb, var(--plum-deep) 92%, transparent);
  border: 1px solid var(--frame-d); box-shadow: 0 16px 44px rgba(0,0,0,.22);
  backdrop-filter: blur(16px);
}
.theme-switcher-label { margin-left: 8px; font: 500 10px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--cream-mut); }
.theme-options { display: flex; gap: 4px; }
.theme-option {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 10px;
  border: 1px solid transparent; color: var(--cream-mut); background: transparent;
  font: 500 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; cursor: pointer;
}
.theme-option:hover { color: var(--cream-txt); }
.theme-option.is-active { border-color: var(--frame-d); color: var(--cream-txt); background: rgba(255,255,255,.08); }
.theme-dot { width: 11px; height: 11px; border-radius: 50%; border: 1px solid rgba(255,255,255,.65); box-shadow: 0 0 0 2px rgba(255,255,255,.07); }
.theme-dot-atlas { background: linear-gradient(135deg, #29203c 50%, #a6bbaf 50%); }
.theme-dot-whiteboard { background: linear-gradient(135deg, #fffdf5 36%, #2166d1 37% 55%, #f2c94c 56% 75%, #ed5d56 76%); }
.theme-dot-fieldnote { background: linear-gradient(135deg, #173a31 48%, #f0e7ce 49% 70%, #ff6937 71%); }

.hero { min-height: 760px; padding-top: 150px; padding-bottom: 100px; isolation: isolate; }
#neuralCanvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .24; pointer-events: none; z-index: -1; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(circle at 72% 42%, color-mix(in srgb, var(--sage) 12%, transparent), transparent 36%), linear-gradient(90deg, var(--plum) 0 44%, transparent 72%);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, .96fr) minmax(430px, 1.04fr); gap: clamp(56px, 8vw, 112px); align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.concept-flag { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 28px; color: var(--sage); font: 500 11px/1.3 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.concept-flag span { width: 8px; height: 8px; border-radius: 50%; background: var(--sage); box-shadow: 0 0 0 6px color-mix(in srgb, var(--sage) 14%, transparent); }
.hero-eyebrow { margin-bottom: 22px; }
.hero-statement { max-width: 11ch; color: var(--cream-txt); font-size: clamp(3.2rem, 5.5vw, 5.9rem); line-height: .94; letter-spacing: -.045em; text-wrap: balance; }
.hero-copy .hero-para { margin: 28px 0 30px; max-width: 43ch; text-align: left; font-size: clamp(1.02rem, 1.25vw, 1.16rem); line-height: 1.55; }
.hero-copy .hero-para em { color: var(--cream-txt); }
.hero-provenance { margin: -14px 0 30px; color: var(--lav-mut); font: 500 9px/1.5 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.hero-provenance a { color: var(--cream-txt); border-bottom: 1px solid var(--rule-d); }
.hero-provenance a:hover { color: var(--sage); border-color: var(--sage); }
.hero-copy .hero-cta { justify-content: flex-start; align-items: center; margin-bottom: 0; }
.hero-text-link { color: var(--cream-txt); font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; border-bottom: 1px solid var(--rule-d); padding: 8px 0; }
.hero-text-link:hover { color: var(--sage); border-color: var(--sage); }
.hero-copy .hero-stats { max-width: none; justify-content: flex-start; }
.hero-copy .hero-stats > div { min-width: 150px; padding: 18px 16px; text-align: left; }
.hero-copy .hero-stats .stat-num { font-size: clamp(1.25rem, 2vw, 1.75rem); }

.hero-system {
  position: relative; margin: 0; min-height: 610px; padding: 26px;
  display: grid; grid-template-rows: auto auto auto 1fr auto auto; gap: 20px;
  color: var(--cream-txt); border: 1px solid var(--frame-d);
  background: color-mix(in srgb, var(--plum-deep) 82%, transparent); backdrop-filter: blur(10px);
  box-shadow: 0 28px 90px rgba(0,0,0,.2);
}
.system-kicker, .hero-system figcaption { color: var(--lav-mut); font: 500 10px/1.5 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.hero-system figcaption { padding-top: 14px; border-top: 1px solid var(--rule-d); }
.lab-streams { display: grid; gap: 9px; }
.lab-source { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; min-height: 42px; font: 500 10px/1 var(--mono); letter-spacing: .08em; }
.lab-source span { color: var(--cream-txt); }
.lab-source small { color: var(--cream-mut); }
.lab-source i { position: relative; height: 1px; background: var(--rule-d); overflow: visible; }
.lab-source i::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--sage); box-shadow: 0 0 12px var(--sage); }
.source-b { padding-left: 28px; }
.source-c { padding-left: 10px; padding-right: 34px; }
.flow-bridge { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 8px 12px; color: var(--cream-mut); border: 1px dashed var(--rule-d); font: 500 9px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.flow-bridge b { color: var(--sage); font-weight: 500; }
.commons-core { position: relative; min-height: 230px; border: 1px solid var(--frame-d); overflow: hidden; background: radial-gradient(circle at 25% 50%, color-mix(in srgb, var(--sage) 18%, transparent), transparent 36%), rgba(0,0,0,.12); }
.brain-slice { position: absolute; left: 36px; top: 50%; width: 145px; aspect-ratio: .78; border-radius: 48% 48% 44% 44% / 55% 55% 45% 45%; border: 1px solid color-mix(in srgb, var(--sage) 68%, transparent); transform: translateY(-50%); background: radial-gradient(ellipse at 50% 48%, transparent 0 8%, color-mix(in srgb, var(--cream-txt) 12%, transparent) 9% 14%, transparent 15% 22%, color-mix(in srgb, var(--sage) 20%, transparent) 23% 33%, transparent 34%), repeating-radial-gradient(ellipse at 50% 48%, transparent 0 7px, color-mix(in srgb, var(--cream-txt) 11%, transparent) 8px 9px); }
.slice-1 { opacity: .28; transform: translate(-18px, -50%) scale(.86); }
.slice-2 { opacity: .5; transform: translate(-9px, -50%) scale(.93); }
.slice-3 { box-shadow: 0 0 34px color-mix(in srgb, var(--sage) 18%, transparent); }
.core-copy { position: absolute; left: 225px; right: 24px; top: 50%; transform: translateY(-50%); }
.core-copy span { display: block; margin-bottom: 10px; color: var(--sage); font: 500 10px/1 var(--mono); letter-spacing: .18em; }
.core-copy strong { display: block; color: var(--cream-txt); font: 600 clamp(1.55rem, 2.35vw, 2.45rem)/1.02 var(--serif); letter-spacing: -.025em; }
.system-output { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.system-output span { padding: 10px 6px; text-align: center; color: var(--cream-mut); border: 1px solid var(--rule-d); font: 500 9px/1.25 var(--mono); letter-spacing: .06em; text-transform: uppercase; }

/* Hero argument: academic contributions unlock the data-scaling curve. */
.hero-scale {
  position: relative; margin: 0; padding: 6px 0 0; color: var(--cream-txt);
}
.scale-kicker { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--rule-d); color: var(--sage); font: 500 9px/1 var(--mono); letter-spacing: .16em; }
.scale-kicker span:last-child { color: var(--lav-mut); }
.hero-scale > h2 { max-width: 13ch; margin: 28px 0 0; color: var(--cream-txt); font: 500 clamp(2rem, 3.5vw, 3.35rem)/1.03 var(--serif); letter-spacing: -.03em; }
.scale-bars { display: grid; gap: 20px; margin-top: 27px; }
.scale-bar-group { display: grid; gap: 8px; }
.scale-bar-label { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; color: var(--cream-mut); font: 500 9px/1.2 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.scale-bar-label strong { color: var(--cream-txt); font: 500 clamp(1.1rem, 1.7vw, 1.5rem)/1 var(--serif); letter-spacing: -.01em; }
.scale-track { position: relative; height: 21px; background: color-mix(in srgb, var(--cream-txt) 6%, transparent); }
.scale-reference { display: flex; width: 91.74%; height: 100%; }
.scale-reference i { display: block; min-width: 4px; border-right: 2px solid var(--plum-deep); }
.scale-ukb { flex: 100000 1 0; background: var(--sage); }
.scale-openneuro { flex: 50674 1 0; background: var(--cream-txt); }
.scale-hcp { flex: 1113 1 0; background: var(--lav-mut); border-right: 0 !important; }
.scale-key { display: flex; flex-wrap: wrap; gap: 7px 16px; color: var(--lav-mut); font: 400 8px/1.2 var(--mono); letter-spacing: .04em; }
.scale-network { display: grid; grid-template-columns: repeat(6, 1fr); width: 100%; height: 100%; background: var(--sage); }
.scale-network i { border-right: 1px solid color-mix(in srgb, var(--plum-deep) 55%, transparent); }
.scale-network i:last-child { border-right: 0; }
.scale-threshold { position: absolute; left: 91.74%; top: -7px; bottom: -7px; width: 1px; background: var(--cream-txt); }
.scale-threshold::after { content: ""; position: absolute; top: -2px; left: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--cream-txt); }
.scale-threshold span { position: absolute; right: 7px; bottom: -16px; width: max-content; color: var(--cream-txt); font: 500 7px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.scaling-law { position: relative; margin-top: 20px; padding: 10px 0 0 34px; border-top: 1px solid var(--rule-d); }
.scaling-law svg { width: 100%; height: auto; overflow: visible; }
.plot-y { position: absolute; left: 0; top: 25px; bottom: 20px; display: flex; align-items: center; gap: 7px; color: var(--lav-mut); font: 500 7px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; writing-mode: vertical-rl; transform: rotate(180deg); }
.plot-y b { color: var(--sage); font-size: 12px; }
.plot-grid { fill: none; stroke: var(--rule-d); stroke-width: 1; }
.plot-axis { fill: none; stroke: color-mix(in srgb, var(--cream-txt) 62%, transparent); stroke-width: 1; }
.plot-curve { fill: none; stroke: var(--sage); stroke-width: 3; }
.plot-forecast { fill: none; stroke: var(--sage); stroke-width: 3; stroke-dasharray: 8 7; }
.plot-frontier { fill: none; stroke: var(--cream-txt); stroke-width: 1; stroke-dasharray: 2 5; opacity: .55; }
.plot-points { fill: var(--plum-deep); stroke: var(--cream-txt); stroke-width: 1.5; }
.plot-current { fill: var(--cream-txt); stroke: var(--plum-deep); }
.plot-future { fill: var(--plum-deep); stroke: var(--sage); stroke-width: 2; }
.scaling-law text { fill: var(--lav-mut); font: 500 8px var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.scaling-law text.plot-note { fill: var(--sage); letter-spacing: .1em; }
.hero-scale figcaption { margin-top: 25px; padding-top: 12px; color: var(--lav-mut); border-top: 1px solid var(--rule-d); font: 400 9px/1.55 var(--mono); }
.hero-scale details summary { width: max-content; color: var(--lav-mut); cursor: pointer; letter-spacing: .08em; text-transform: uppercase; }
.hero-scale details p { margin: 12px 0 0; color: var(--cream-mut); }
.hero-scale details a { color: var(--cream-txt); border-bottom: 1px solid var(--rule-d); }
.hero-scale figcaption a { color: var(--cream-txt); border-bottom: 1px solid var(--rule-d); }

.latent-row { display: grid; grid-template-columns: 84px 1fr auto; gap: 12px; align-items: center; margin-top: 16px; }
.latent-row b { font: 500 10px/1 var(--mono); letter-spacing: .1em; }
.latent-row span { height: 18px; background: var(--ink); }
.latent-row span.latent-small { width: 8%; min-width: 14px; background: var(--sage-deep); }
.latent-row em { color: var(--ink-faint); font: 400 10px/1.2 var(--mono); font-style: normal; text-align: right; }

.access-policy { display: grid; grid-template-columns: repeat(3, 1fr); margin: -18px 0 28px; border-top: 1px solid var(--rule-l); border-bottom: 1px solid var(--rule-l); }
.access-policy > div { display: grid; grid-template-columns: auto 1fr; gap: 14px; padding: 20px; border-left: 1px solid var(--rule-l); }
.access-policy > div:first-child { border-left: 0; }
.policy-icon { width: 20px; height: 30px; display: grid; place-items: center; color: var(--ink-faint); font: 500 10px/1 var(--mono); }
.policy-open { color: var(--sage-deep); }
.policy-local { color: #a06f45; }
.access-policy p { margin: 0; line-height: 1.25; }
.access-policy strong { display: block; font-size: 1.02rem; }
.access-policy small { display: block; margin-top: 5px; color: var(--ink-soft); font-size: .86rem; line-height: 1.35; }
.vault-head .label b { color: var(--sage-deep); font-weight: 500; }
.sc-policy { color: #a06f45; border-color: #a06f45; }

.adoption-line { max-width: 900px; margin: 0 auto 38px; display: flex; justify-content: center; flex-wrap: wrap; color: var(--sage); font: 500 10px/1 var(--mono); letter-spacing: .11em; text-transform: uppercase; }
.adoption-line span { padding: 0 22px; border-left: 1px solid var(--rule-d); }
.adoption-line span:first-child { border-left: 0; }
.footer-principles { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px 34px; padding-bottom: 44px; border-bottom: 1px solid var(--rule-l); color: var(--ink-soft); font: 500 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }

@media (max-width: 1120px) {
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-statement { max-width: 13ch; }
  .hero-system { min-height: 560px; }
  .hero-scale { min-height: 0; }
}

@media (max-width: 760px) {
  .nav { padding-left: 16px; padding-right: 16px; }
  .nav .btn { display: none; }
  .brand { font-size: 15px; letter-spacing: .11em; }
  .theme-switcher { left: 12px; right: 12px; top: auto; bottom: 10px; justify-content: space-between; }
  .theme-switcher-label { display: none; }
  .theme-options { width: 100%; }
  .theme-option { flex: 1; justify-content: center; }
  .hero { padding-top: 112px; padding-bottom: 64px; }
  .hero-grid { gap: 40px; }
  .hero-statement { font-size: clamp(3rem, 15vw, 4.7rem); }
  .hero-copy .hero-stats { display: grid; grid-template-columns: 1fr; }
  .hero-copy .hero-stats > div + div { border-top: 1px solid var(--rule-d); }
  .hero-system { min-height: 530px; padding: 18px; }
  .hero-scale { min-height: 0; padding: 0; }
  .hero-scale > h2 { max-width: 12ch; }
  .scale-bars { gap: 20px; margin-top: 27px; }
  .scale-bar-label { gap: 12px; }
  .scale-bar-label span { max-width: 18ch; }
  .scale-key { gap: 6px 10px; }
  .scaling-law { margin-top: 20px; padding-left: 25px; }
  .scaling-law text { font-size: 7px; }
  .plot-note-now { transform: translateX(-28px); }
  .hero-scale figcaption { font-size: 8px; }
  .scale-head { grid-template-columns: 1fr; gap: 10px; }
  .scale-head p { max-width: none; margin: 0; text-align: left; }
  .source-ledger span { display: block; }
  .source-ledger small { display: block; margin-top: 2px; }
  .annual-bridge { grid-template-columns: 1fr; gap: 5px; }
  .annual-bridge p { text-align: left; }
  .network-plot { height: 76px; }
  .center-cell { padding-left: 6px; }
  .center-cell b { font-size: 8px; }
  .center-cross em { display: none; }
  .reference-threshold span { font-size: 6px; }
  .scale-conclusion { grid-template-columns: 1fr; gap: 5px; }
  .scale-conclusion strong { text-align: left; }
  .lab-source { grid-template-columns: auto 1fr; }
  .lab-source small { display: none; }
  .commons-core { min-height: 220px; }
  .brain-slice { left: 20px; width: 120px; }
  .core-copy { left: 170px; right: 16px; }
  .core-copy strong { font-size: 1.45rem; }
  .system-output { grid-template-columns: 1fr; }
  .latent-row { grid-template-columns: 72px 1fr; }
  .latent-row em { grid-column: 1 / -1; text-align: left; }
  .access-policy { grid-template-columns: 1fr; }
  .access-policy > div { border-left: 0; border-top: 1px solid var(--rule-l); }
  .access-policy > div:first-child { border-top: 0; }
  .adoption-line { display: grid; gap: 12px; }
  .adoption-line span { padding: 0; border-left: 0; }
  .term-tabs { overflow-x: auto; }
  .term-tab { flex: 0 0 auto; }
  .term-pane { font-size: 11px; padding: 20px 16px; }
  .toast { bottom: 72px; width: calc(100% - 32px); text-align: center; }
}