/* =====================================================================
   Dr. Smith Mehta — Academic Site
   Direction C · Warm Editorial
   Shared design system
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Hanken+Grotesk:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&family=Fraunces:ital,opsz,wght@0,9..144,400;1,9..144,400&family=Libre+Franklin:wght@400;500;600;700;800&family=Newsreader:ital,opsz,wght@0,6..72,400;1,6..72,400&family=Source+Sans+3:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;600&family=Cormorant+Garamond:ital,wght@0,400;0,600;1,400&family=Public+Sans:wght@400;500;600;700;800&family=Archivo:wght@400;500;600;700;800&family=DM+Mono:wght@400;500&family=Spectral:ital,wght@0,400;0,600;1,400&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  --paper:    #f2f1e8;
  --paper-2:  #e7e5d6;
  --ink:      #1b231b;
  --ink-soft: #3a473a;
  --muted:    #6e7a67;
  --clay:     #9c6b2f;
  --clay-2:   #c08f4c;
  --deep:     #1e271d;
  --deep-2:   #263026;
  --on-deep:  #edefe4;
  --on-deep-muted: #a7b29c;
  --line:     #ddddc9;
  --line-2:   #cdcdb4;
  --line-deep: rgba(237,239,228,0.15);

  --display: 'Instrument Serif', Georgia, serif;
  --sans: 'Hanken Grotesk', system-ui, sans-serif;
  --mono: 'Space Mono', ui-monospace, monospace;

  --maxw: 1200px;
  --pad: clamp(22px, 5vw, 64px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-synthesis: none;
}

a { color: inherit; }

img { display: block; max-width: 100%; }

::selection { background: var(--clay); color: var(--paper); }

/* ---------- Layout primitives ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
.container--wide { max-width: 1340px; }

.section { padding: clamp(56px, 9vw, 112px) 0; }
.section--tight { padding: clamp(40px, 6vw, 72px) 0; }

.deep { background: var(--deep); color: var(--on-deep); }
.deep h1, .deep h2, .deep h3 { color: var(--on-deep); }
.alt { background: var(--paper-2); }

/* ---------- Hero background photo ---------- */
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  --image-slot-radius: 0;
}
.hero-bg[data-filled] {
  opacity: 0.45;
  filter: saturate(0.9) brightness(0.82);
}
.hero-bg::part(image) { object-position: 50% 12%; }

/* ---------- Type ---------- */
.kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clay);
  margin: 0 0 18px;
}
.deep .kicker { color: var(--clay-2); }

.display {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.005em;
  line-height: 1.08;
  margin: 0;
  padding-bottom: 0.18em;
}
.display em { font-style: italic; color: var(--clay); }
.deep .display em { color: var(--clay-2); }

h1.display { font-size: clamp(48px, 8vw, 104px); padding-bottom: 0.72em; }
h2.display { font-size: clamp(34px, 5vw, 60px); }
h3.display { font-size: clamp(26px, 3vw, 36px); }

.lead {
  font-size: clamp(19px, 2.1vw, 23px);
  line-height: 1.5;
  color: var(--ink-soft);
  font-weight: 400;
}
.lead b, .lead strong { color: var(--clay); font-weight: 600; }
.deep .lead { color: var(--on-deep); }
.deep .lead b { color: var(--clay-2); }

.section-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 36px;
}
.deep .section-label { color: var(--on-deep-muted); }
.sl-mark {
  background: var(--clay);
  color: var(--paper);
  padding: 5px 12px;
  border-radius: 4px;
  letter-spacing: 0.2em;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250,244,234,0.86);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar {
  max-width: 1340px;
  margin: 0 auto;
  padding: 16px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  font-family: var(--display);
  font-size: 25px;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}
.brand .dot { color: var(--clay); }
.nav { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  position: relative;
  padding: 4px 0;
  transition: color .18s;
}
.nav a:hover { color: var(--clay); }
.nav a.active { color: var(--ink); }
.nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--clay);
}
.nav a.pill {
  background: var(--ink);
  color: var(--paper);
  padding: 9px 18px;
  border-radius: 40px;
  transition: background .18s;
}
.nav a.pill:hover { background: var(--clay); color: var(--paper); }
.nav a.pill::after { display: none; }

.nav-toggle { display: none; }

/* ---------- Buttons / links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 40px;
  transition: all .18s;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--clay); }
.btn--ghost { border-color: var(--line-2); color: var(--ink); }
.btn--ghost:hover { border-color: var(--clay); color: var(--clay); }
.btn--clay { background: var(--clay); color: var(--paper); }
.btn--clay:hover { background: var(--ink); }
.deep .btn--ghost { border-color: var(--line-deep); color: var(--on-deep); }
.deep .btn--ghost:hover { border-color: var(--clay-2); color: var(--clay-2); }
.btn .arr { transition: transform .2s; }
.btn:hover .arr { transform: translateX(3px); }

.tlink {
  text-decoration: none;
  color: var(--clay);
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color .18s;
}
.tlink:hover { border-bottom-color: var(--clay); }

/* ---------- Tags / chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 7px 13px;
  border: 1px solid var(--line-2);
  border-radius: 40px;
  color: var(--ink-soft);
  background: rgba(255,255,255,0.4);
}
.deep .chip { border-color: var(--line-deep); color: var(--on-deep-muted); background: transparent; }

/* ---------- Books ---------- */
.book-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3vw, 40px); }
.book-card { border-top: 2px solid var(--line-deep); padding-top: 20px; }
.book-card .tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clay-2);
}
.book-card h3 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(24px, 2.6vw, 30px);
  line-height: 1.08;
  margin: 14px 0 12px;
}
.book-card p { margin: 0; color: var(--on-deep-muted); font-size: 14.5px; line-height: 1.5; }

/* light book variant (on paper) */
.book-card--light { border-top-color: var(--line-2); }
.book-card--light .tag { color: var(--clay); }
.book-card--light p { color: var(--muted); }

/* ---------- Expertise grid ---------- */
.exp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.exp-cell { background: var(--paper); padding: 30px 28px; }
.exp-cell .n { font-family: var(--mono); font-size: 12px; color: var(--clay); }
.exp-cell h3 { font-family: var(--display); font-weight: 400; font-size: 24px; margin: 12px 0 8px; line-height: 1.1; }
.exp-cell p { margin: 0; font-size: 14.5px; color: var(--muted); line-height: 1.5; }

/* ---------- Publication list ---------- */
.pub-list { display: flex; flex-direction: column; }
.pub {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 26px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.pub:last-child { border-bottom: 1px solid var(--line); }
.pub .yr { font-family: var(--mono); font-size: 13px; color: var(--clay); padding-top: 2px; }
.pub .body { }
.pub .title { font-size: 17.5px; font-weight: 600; line-height: 1.4; margin: 0 0 5px; color: var(--ink); }
.pub .venue { font-size: 15px; color: var(--muted); font-style: italic; }
.pub .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; align-items: center; }
.pub .badge {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 30px;
  border: 1px solid var(--line-2);
  color: var(--muted);
}
.pub .badge--status { color: var(--clay); border-color: color-mix(in oklab, var(--clay) 35%, var(--line-2)); }
.pub a.doi { font-family: var(--mono); font-size: 12px; color: var(--clay); text-decoration: none; }
.pub a.doi:hover { text-decoration: underline; }
.pub .title a.title-link { color: inherit; text-decoration: none; transition: color .15s; }
.pub .title a.title-link:hover { color: var(--clay); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }

/* ---------- Filter tabs ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.filter-bar button {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 40px;
  padding: 9px 18px;
  cursor: pointer;
  transition: all .16s;
}
.filter-bar button:hover { border-color: var(--clay); color: var(--clay); }
.filter-bar button.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.pub-toggle {
  margin-top: 28px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 12px 26px;
  cursor: pointer;
  transition: background .18s, color .18s, border-color .18s;
}
.pub-toggle:hover { background: var(--clay); border-color: var(--clay); }

/* ---------- Footer social logos ---------- */
.foot-logos { display: grid; grid-template-columns: repeat(3, 48px); gap: 12px; margin-top: 14px; }
.foot-logos a {
  display: flex !important; align-items: center; justify-content: center;
  width: 48px; height: 48px; padding: 0; margin: 0; border: 1px solid var(--line-deep);
  border-radius: 11px; transition: border-color .18s, transform .18s, background .18s;
}
.foot-logos svg { height: 24px; width: auto; max-width: 38px; display: block; }
.foot-logos a:hover { border-color: var(--clay-2); transform: translateY(-2px); background: rgba(255,255,255,0.05); }

/* ---------- Timeline / CV ---------- */
.cv-group { display: grid; grid-template-columns: 200px 1fr; gap: 40px; padding: 36px 0; border-top: 1px solid var(--line); }
.cv-group__label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); padding-top: 4px; }
.cv-entry { padding-bottom: 26px; }
.cv-entry:last-child { padding-bottom: 0; }
.cv-entry .when { font-family: var(--mono); font-size: 12.5px; color: var(--clay); margin-bottom: 5px; }
.cv-entry h3 { font-size: 19px; font-weight: 700; margin: 0 0 3px; line-height: 1.3; }
.cv-entry .where { font-size: 15.5px; color: var(--muted); font-style: italic; margin-bottom: 10px; }
.cv-entry ul { margin: 8px 0 0; padding-left: 18px; }
.cv-entry li { font-size: 15px; color: var(--ink-soft); margin-bottom: 5px; line-height: 1.5; }

/* ---------- Stats ---------- */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-deep); border-top: 1px solid var(--line-deep); border-bottom: 1px solid var(--line-deep); }
.stat { background: var(--deep); padding: 30px 24px; }
.stat .num { font-family: var(--display); font-size: clamp(30px, 3.4vw, 44px); line-height: 1.02; color: var(--on-deep); }
.stat .num em { font-style: italic; color: var(--clay-2); }
.stat .lbl { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-deep-muted); margin-top: 10px; }

/* ---------- Simple list (grants, talks) ---------- */
.list-line { display: grid; grid-template-columns: 110px 1fr auto; gap: 24px; padding: 18px 0; border-top: 1px solid var(--line); align-items: baseline; }
.list-line .yr { font-family: var(--mono); font-size: 13px; color: var(--clay); }
.list-line .main { font-size: 16px; line-height: 1.45; }
.list-line .main b { font-weight: 700; }
.list-line .main .sub { display: block; color: var(--muted); font-size: 14px; margin-top: 3px; }
.list-line .amt { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); white-space: nowrap; }

/* ---------- Testimonials ---------- */
.tm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line-deep); border-top: 1px solid var(--line-deep); border-bottom: 1px solid var(--line-deep); margin-top: 40px; }
.tm-card { background: var(--deep); margin: 0; padding: clamp(32px, 4vw, 52px); display: flex; flex-direction: column; }
.tm-quote { font-family: var(--display); font-size: clamp(22px, 2.4vw, 30px); line-height: 1.32; color: var(--on-deep); margin: 0 0 28px; text-indent: -0.5em; }
.tm-quote::before { content: "\201C"; color: var(--clay-2); }
.tm-quote::after { content: "\201D"; color: var(--clay-2); }
.tm-by { margin-top: auto; display: flex; align-items: center; gap: 16px; }
.tm-avatar { width: 56px; height: 56px; flex: 0 0 56px; border-radius: 50%; overflow: hidden; border: 1px solid var(--line-deep); }
.tm-meta { display: flex; flex-direction: column; }
.tm-name { display: block; font-weight: 700; color: var(--on-deep); font-size: 17px; }
.tm-role { display: block; font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--on-deep-muted); margin-top: 6px; }

/* ====================================================
   FONT PAIRING PRESETS (preview switcher)
   ==================================================== */
body[data-font="editorial"] {
  --display: 'Fraunces', Georgia, serif;
  --sans: 'Libre Franklin', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}
body[data-font="literary"] {
  --display: 'Newsreader', Georgia, serif;
  --sans: 'Source Sans 3', system-ui, sans-serif;
  --mono: 'DM Mono', ui-monospace, monospace;
}
body[data-font="classical"] {
  --display: 'Cormorant Garamond', Georgia, serif;
  --sans: 'Public Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}
body[data-font="modern"] {
  --display: 'Spectral', Georgia, serif;
  --sans: 'Archivo', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}

#fontSwitcher {
  position: fixed; left: 18px; bottom: 18px; z-index: 9999;
  display: flex; flex-direction: column; gap: 9px;
  background: var(--deep); color: var(--on-deep);
  padding: 14px; border-radius: 14px;
  box-shadow: 0 14px 38px rgba(0,0,0,.32);
  font-family: var(--mono); font-size: 11px; max-width: 230px;
}
#fontSwitcher .fs-title { letter-spacing: .14em; text-transform: uppercase; color: var(--on-deep-muted); }
#fontSwitcher .fs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
#fontSwitcher button {
  display: flex; flex-direction: column; align-items: flex-start; gap: 3px;
  background: transparent; border: 1px solid var(--line-deep);
  color: var(--on-deep); font-family: inherit; font-size: 11px;
  padding: 9px 10px; border-radius: 9px; cursor: pointer;
  transition: border-color .15s, background .15s; text-align: left;
}
#fontSwitcher button .fs-k { font-weight: 700; }
#fontSwitcher button .fs-d { color: var(--on-deep-muted); font-size: 9px; line-height: 1.25; }
#fontSwitcher button:hover { border-color: var(--clay-2); }
#fontSwitcher button.active { border-color: var(--clay-2); background: rgba(192,143,76,.14); }
#fontSwitcher .fs-collapse {
  align-self: flex-end; background: none; border: none; color: var(--on-deep-muted);
  cursor: pointer; font-family: inherit; font-size: 10px; padding: 0; text-transform: uppercase; letter-spacing: .1em;
}
#fontSwitcher.collapsed .fs-grid, #fontSwitcher.collapsed .fs-title { display: none; }
@media (max-width: 600px) { #fontSwitcher { left: 10px; bottom: 10px; max-width: 170px; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--deep); color: var(--on-deep); padding: clamp(56px, 8vw, 88px) 0 40px; }
.foot-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid var(--line-deep); }
.foot-top .big { font-family: var(--display); font-size: clamp(30px, 4vw, 46px); line-height: 1.02; }
.foot-top .big em { font-style: italic; color: var(--clay-2); }
.foot-col h4 { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-deep-muted); margin: 0 0 16px; font-weight: 400; }
.foot-col a { display: block; color: var(--on-deep); text-decoration: none; font-size: 15px; margin-bottom: 11px; transition: color .16s; }
.foot-col a:hover { color: var(--clay-2); }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; padding-top: 28px; }
.foot-bottom span { font-family: var(--mono); font-size: 12px; color: var(--on-deep-muted); letter-spacing: 0.04em; }

/* ---------- Network map ---------- */
:root {
  --n-collab:   oklch(0.70 0.12 150);
  --n-academic: oklch(0.70 0.12 55);
  --n-industry: oklch(0.70 0.12 250);
  --n-funder:   oklch(0.70 0.12 335);
}
.network .net-head { display: block; margin-bottom: 30px; }
.network .net-head h2 { margin: 0; max-width: none; }
.network .net-head .lead { margin: 0; }
.net-legend { display: flex; flex-wrap: wrap; gap: 6px 22px; margin-bottom: 22px; }
.net-leg { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; color: var(--on-deep-muted); background: none; border: none; cursor: pointer; padding: 6px 2px; transition: color .18s; }
.net-leg:hover, .net-leg.on { color: var(--on-deep); }
.net-leg .sw { width: 11px; height: 11px; border-radius: 50%; flex: none; }
.net-wrap { display: grid; grid-template-columns: 1.65fr 1fr; gap: clamp(24px, 4vw, 52px); align-items: center; }
.net-stage { position: relative; }
.net-svg { width: 100%; height: auto; display: block; overflow: visible; }
.net-link { stroke: var(--on-deep-muted); stroke-opacity: .2; stroke-width: 1.2; transition: stroke-opacity .2s, stroke-width .2s; }
.net-svg.dim .net-link { stroke-opacity: .06; }
.net-svg.dim .net-link.hot { stroke-opacity: .9; stroke-width: 1.8; }
.net-node { cursor: pointer; transition: opacity .2s; }
.net-svg.dim .net-node { opacity: .3; }
.net-svg.dim .net-node.hot { opacity: 1; }
.net-svg.dim .net-center { opacity: 1; }
.net-node circle { transition: r .2s ease; }
.net-node:hover circle, .net-node.hot circle { r: 9.5; }
.net-node text { font-family: var(--mono); font-size: 11px; letter-spacing: .02em; fill: var(--on-deep-muted); transition: fill .2s; pointer-events: none; }
.net-node:hover text, .net-node.hot text { fill: var(--on-deep); }
.net-center { cursor: pointer; }
.net-center circle { fill: var(--clay); }
.net-center:hover circle, .net-center.hot circle { r: 34; }
.net-center text { fill: var(--paper); font-family: var(--display); font-size: 17px; letter-spacing: 0; }
.net-panel { border: 1px solid var(--line-deep); border-radius: 8px; padding: 28px 28px 30px; background: var(--deep-2); min-height: 210px; }
.np-tag { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 12px; }
.np-title { font-family: var(--display); font-weight: 400; font-size: 27px; line-height: 1.1; margin: 0 0 13px; color: var(--on-deep); }
.np-blurb { margin: 0; color: var(--on-deep-muted); font-size: 15px; line-height: 1.62; }
.np-hint { font-family: var(--mono); font-size: 11px; letter-spacing: .04em; color: var(--on-deep-muted); margin-top: 18px; opacity: .65; }

/* ---------- Funding map (lollipop timeline) ---------- */
:root { --fund-grant: var(--n-funder); --fund-fellow: var(--n-academic); }
.fund-svg { width: 100%; height: auto; display: block; overflow: visible; }
.fund-axis { stroke: var(--line-deep); stroke-width: 1; }
.fund-year { font-family: var(--mono); font-size: 11px; letter-spacing: .04em; fill: var(--on-deep-muted); }
.fund-stem { stroke-width: 2; stroke-opacity: .55; transition: stroke-opacity .2s; }
.fund-svg.dim .fund-stem { stroke-opacity: .14; }
.fund-svg.dim .fund-item.hot .fund-stem { stroke-opacity: 1; }
.fund-item { cursor: pointer; transition: opacity .2s; }
.fund-svg.dim .fund-item { opacity: .32; }
.fund-svg.dim .fund-item.hot { opacity: 1; }
.fund-dot { transition: r .2s ease; }
.fund-item:hover .fund-dot, .fund-item.hot .fund-dot { r: 12; }
.fund-amt { font-family: var(--display); font-size: 17px; fill: var(--on-deep); }
.fund-label { font-family: var(--mono); font-size: 10.5px; letter-spacing: .02em; fill: var(--on-deep-muted); transition: fill .2s; }
.fund-item:hover .fund-label, .fund-item.hot .fund-label { fill: var(--on-deep); }

/* ---------- Network pinboard ---------- */
.pb-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.pb-legend { display: flex; gap: 8px 18px; flex-wrap: wrap; }
.pb-legend button { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .04em; background: none; border: none; cursor: pointer; padding: 4px 2px; color: var(--on-deep-muted); transition: color .18s; }
.pb-legend button:hover, .pb-legend button.on { color: var(--on-deep); }
.pb-legend .sw { width: 11px; height: 11px; border-radius: 50%; flex: none; }
.pb-replay { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; background: none; border: 1px solid var(--line-deep); border-radius: 40px; padding: 8px 16px; cursor: pointer; color: var(--on-deep-muted); transition: all .18s; }
.pb-replay:hover { color: var(--on-deep); border-color: var(--on-deep-muted); }
.pb-board { position: relative; width: 100%; height: 500px; border-radius: 12px;
  background-color: #c9a86a;
  background-image: radial-gradient(circle at 30% 20%, rgba(255,255,255,.10), transparent 40%), radial-gradient(rgba(90,67,38,.35) 1px, transparent 1.4px), radial-gradient(rgba(120,92,52,.25) 1px, transparent 1.4px);
  background-size: auto, 9px 9px, 13px 13px; background-position: 0 0, 0 0, 4px 6px;
  box-shadow: inset 0 0 60px rgba(70,52,28,.5); overflow: hidden; }
.pb-threads { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.pb-threads path { fill: none; stroke: #f6efe0; stroke-opacity: .5; stroke-width: 1.4; transition: stroke-opacity .25s, stroke-width .25s; }
.pb-board.dim .pb-threads path { stroke-opacity: .12; }
.pb-board.dim .pb-threads path.on { stroke-opacity: 1; stroke-width: 2.4; }
.pb-note { position: absolute; transform: translate(-50%,-50%) rotate(var(--r)); width: 140px; background: #fffdf6; padding: 15px 14px 14px; box-shadow: 0 8px 16px rgba(40,28,12,.32); cursor: pointer; transition: transform .25s cubic-bezier(.2,.8,.3,1.1), box-shadow .25s, opacity .25s; }
.pb-note::after { content: ""; position: absolute; top: -7px; left: 50%; width: 13px; height: 13px; border-radius: 50%; transform: translateX(-50%); background: radial-gradient(circle at 35% 30%, #fff, var(--pin) 60%); box-shadow: 0 2px 3px rgba(0,0,0,.4); }
.pb-note .pb-tag { font-family: var(--mono); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.pb-note .pb-name { font-family: var(--display); font-size: 18px; line-height: 1.05; color: var(--ink); margin-top: 4px; }
.pb-board.dim .pb-note { opacity: .42; }
.pb-board.dim .pb-note.on { opacity: 1; }
.pb-note.on { transform: translate(-50%,-50%) rotate(0deg) scale(1.16); box-shadow: 0 18px 30px rgba(40,28,12,.45); z-index: 20; }
.pb-hub { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%) rotate(-2deg); width: 176px; background: var(--clay); color: var(--paper); padding: 18px 16px; text-align: center; box-shadow: 0 12px 24px rgba(40,28,12,.5); z-index: 10; }
.pb-hub::after { content: ""; position: absolute; top: -8px; left: 50%; width: 15px; height: 15px; border-radius: 50%; transform: translateX(-50%); background: radial-gradient(circle at 35% 30%, #fff, #7a2d12 65%); box-shadow: 0 2px 3px rgba(0,0,0,.4); }
.pb-hub .h1 { font-family: var(--display); font-size: 25px; line-height: 1; }
.pb-hub .h2 { font-family: var(--mono); font-size: 9.5px; letter-spacing: .16em; text-transform: uppercase; margin-top: 6px; opacity: .85; }
.pb-read { font-family: var(--mono); font-size: 12.5px; line-height: 1.65; letter-spacing: .02em; color: var(--on-deep-muted); margin: 24px 0 0; min-height: 3.2em; border-top: 1px solid var(--line-deep); padding-top: 16px; }
.pb-read b { font-family: var(--sans); font-weight: 600; font-size: 14px; letter-spacing: 0; color: var(--on-deep); }
@media (max-width: 720px) {
  .pb-board { height: 480px; }
  .pb-note { width: 108px; padding: 11px 10px 10px; }
  .pb-note .pb-name { font-size: 14px; }
  .pb-hub { width: 136px; padding: 14px 12px; }
  .pb-hub .h1 { font-size: 20px; }
}

/* ---------- Reveal animation ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
  .reveal.in { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .book-row, .exp-grid, .stat-row { grid-template-columns: 1fr 1fr; }
  .foot-top { grid-template-columns: 1fr 1fr; }
  .foot-top .big { grid-column: 1 / -1; }
  .cv-group { grid-template-columns: 1fr; gap: 16px; }
  .network .net-head { grid-template-columns: 1fr; gap: 18px; align-items: start; }
  .net-wrap { grid-template-columns: 1fr; gap: 30px; }
  .net-node text { font-size: 13px; }
}
/* Tablet & mobile: collapse the hamburger nav + stack the hero */
@media (max-width: 860px) {
  .nav { position: fixed; inset: 61px 0 auto 0; background: var(--paper); flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--pad) 20px; border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform .3s; box-shadow: 0 16px 30px rgba(0,0,0,0.08); z-index: 40; max-height: calc(100vh - 61px); overflow-y: auto; }
  .nav.open { transform: none; }
  .nav a { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 17px; }
  .nav a.active::after { display: none; }
  .nav a.pill { margin-top: 12px; text-align: center; }
  .nav-toggle { display: inline-flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
  .nav-toggle span { width: 24px; height: 2px; background: var(--ink); display: block; transition: transform .25s, opacity .2s; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Hero: single column, and cancel the desktop portrait overlap */
  .hero-grid { grid-template-columns: 1fr !important; gap: 10px !important; margin-top: 20px !important; }
  .hero-grid figure { margin-top: 18px !important; }
  .hero-grid figure img { max-width: 480px; }
  .about-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .book-row, .exp-grid, .stat-row { grid-template-columns: 1fr; }
  .rev-grid { grid-template-columns: 1fr !important; }
  .vid-grid { grid-template-columns: 1fr !important; gap: 20px !important; }
  .vid-title { font-size: 24px; }
  .tm-grid { grid-template-columns: 1fr; }
  .pub { grid-template-columns: 1fr; gap: 6px; }
  .pub .yr { padding-top: 0; }
  .list-line { grid-template-columns: 64px 1fr; }
  .list-line .amt { grid-column: 2; }
  .title-link, .pub .title, .list-line .main { overflow-wrap: anywhere; }
  h1.display { font-size: clamp(38px, 11vw, 72px); }
}

/* ---------- Review cards ---------- */
.rev-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1px; background: var(--line-deep); border: 1px solid var(--line-deep); }
.rev-card { position: relative; display: flex; flex-direction: column; background: var(--deep); padding: 32px 28px 26px; text-decoration: none; overflow: hidden; transition: background .25s; }
.rev-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--clay); transform: scaleY(0); transform-origin: top; transition: transform .3s cubic-bezier(.2,.8,.3,1); }
.rev-card:hover { background: var(--deep-2); }
.rev-card:hover::before { transform: scaleY(1); }
.rev-num { font-family: var(--mono); font-size: 12px; letter-spacing: .1em; color: var(--clay-2); margin-bottom: 22px; }
.rev-jrnl { font-family: var(--display); font-weight: 400; font-size: 27px; line-height: 1.12; color: var(--on-deep); margin-bottom: 12px; }
.rev-by { font-family: var(--mono); font-size: 12px; letter-spacing: .04em; color: var(--on-deep-muted); }
.rev-go { margin-top: auto; padding-top: 26px; font-family: var(--sans); font-weight: 600; font-size: 14px; color: var(--clay-2); display: inline-flex; align-items: center; gap: 7px; }
.rev-card:hover .rev-go .arr { transform: translateX(4px); }
.rev-go .arr { transition: transform .25s; }

/* ---------- Video / interview cards ---------- */
.vid-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 28px; }
.vid-card { display: flex; flex-direction: column; text-decoration: none; border: 1px solid var(--line-2); background: var(--paper); transition: box-shadow .25s, transform .25s; }
.vid-card:hover { box-shadow: 0 14px 40px rgba(0,0,0,.12); transform: translateY(-3px); }
.vid-thumb { position: relative; display: block; aspect-ratio: 16/9; background-size: cover; background-position: center; }
.vid-play { position: absolute; inset: 0; margin: auto; width: 58px; height: 58px; display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--paper); background: var(--clay); border-radius: 50%; padding-left: 3px; box-shadow: 0 6px 20px rgba(0,0,0,.3); transition: transform .25s; }
.vid-card:hover .vid-play { transform: scale(1.1); }
.vid-body { display: flex; flex-direction: column; padding: 22px 24px 24px; }
.vid-meta { font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--clay); margin-bottom: 10px; }
.vid-title { font-family: var(--display); font-size: 27px; line-height: 1.1; color: var(--ink); margin-bottom: 12px; }
.vid-desc { font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); margin-bottom: 18px; }
.vid-go { margin-top: auto; font-family: var(--sans); font-weight: 600; font-size: 14px; color: var(--clay); display: inline-flex; align-items: center; gap: 7px; }
.vid-card:hover .vid-go .arr { transform: translateX(4px); }
.vid-go .arr { transition: transform .25s; }