/* =============================================================================
   SANDBOX MODERN V2 — clean rewrite (2026-05-07).
   Apple-paced, Wes Anderson palette, vertical-after-press trajectory.
   Single source of truth — no duplicate selectors.
   ============================================================================= */

:root {
  --paper:        #ffffff;
  --paper-2:      #fafaf6;
  --ink:          #0d0d0e;
  --ink-2:        #2c2c2e;
  --ink-3:        #5a5a5c;
  --ink-4:        #98989d;
  --rule-fine:    #ececea;
  --rule-soft:    #d4d2cc;

  --mustard:      #c9a66b;
  --mustard-deep: #a98847;
  --olive:        #697053;
  --olive-deep:   #4d533a;
  --rust:         #c14b1f;
  --rust-deep:    #983715;
  --pink:         #e6b9ad;
  --pink-deep:    #b8746a;
  --navy:         #2c4a6b;
  --navy-deep:    #1a3554;
}

body.dark {
  --paper:        #0a0a0c;
  --paper-2:      #14141a;
  --ink:          #f0eee9;
  --ink-2:        #c8c4bc;
  --ink-3:        #8a857c;
  --ink-4:        #5a554d;
  --rule-fine:    #2a2a2c;
  --rule-soft:    #3a3a3c;
}


/* =============================================================================
   BASE
   ============================================================================= */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body, .nav, .tile, .photo, .stop-logo, .koenigsberg, .press-item .thumb img, .v-fill, .v-circle {
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, filter 0.25s ease, fill 0.25s ease;
}

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(13,13,14,0.22);
  transition: color 0.15s, border-color 0.15s;
}
body.dark a { border-bottom-color: rgba(240,238,233,0.22); }
a:hover { color: var(--mustard-deep); border-bottom-color: var(--mustard-deep); }
body.dark a:hover { color: var(--mustard); border-bottom-color: var(--mustard); }

h1, h2, h3, h4 { font-weight: 500; color: var(--ink); }
img { max-width: 100%; }


/* =============================================================================
   NAV — sticky, frosted glass
   ============================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
body.dark .nav {
  background: rgba(10,10,12,0.78);
  border-bottom-color: rgba(255,255,255,0.08);
}
.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
  border: none;
  letter-spacing: -0.005em;
}
.nav-links {
  display: flex;
  gap: 1.8rem;
  font-size: 0.84rem;
}
.nav-links a {
  color: var(--ink-2);
  border: none;
}
.nav-links a:hover { color: var(--mustard-deep); }
body.dark .nav-links a:hover { color: var(--mustard); }
.nav-end {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-cv {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink);
  border: none;
}
.nav-cv:hover { color: var(--mustard-deep); }
.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: var(--ink-3);
  transition: color 0.15s, background 0.15s;
}
.theme-toggle:hover { color: var(--ink); background: rgba(0,0,0,0.05); }
body.dark .theme-toggle:hover { background: rgba(255,255,255,0.08); }
.theme-toggle .theme-icon { width: 16px; height: 16px; }
.theme-toggle .theme-sun  { display: none; }
.theme-toggle .theme-moon { display: inline-block; }
body.dark .theme-toggle .theme-sun  { display: inline-block; }
body.dark .theme-toggle .theme-moon { display: none; }


/* =============================================================================
   PAGE CONTAINER
   ============================================================================= */
.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
}


/* =============================================================================
   HERO
   ============================================================================= */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3.5rem 0 3rem;
  border-bottom: 1px solid var(--rule-fine);
}
.hero-left .photo {
  position: relative;
  width: 220px;
  aspect-ratio: 4 / 3;        /* matches the source photo (2400×1800) */
  margin-bottom: 1.4rem;
  overflow: hidden;
  border-radius: 4px;
  background: var(--paper);
  box-shadow: 0 0 0 1px rgba(201,166,107,0.22), 0 10px 26px rgba(0,0,0,0.10);
  transition: box-shadow 0.35s ease;
}
.hero-left .photo:hover {
  box-shadow: 0 0 0 1px var(--mustard-deep), 0 14px 32px rgba(201,166,107,0.18);
}
.hero-left .photo canvas {
  width: 100%;
  height: 100%;
  display: block;
}
body.dark .hero-left .photo {
  box-shadow: 0 0 0 1px rgba(201,166,107,0.30), 0 10px 26px rgba(0,0,0,0.40);
}

.hero-left h1 {
  font-size: clamp(2.6rem, 4.4vw, 3.8rem);
  font-weight: 200;
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 0 0 0.5rem;
  color: var(--ink);
}
.hero-left h1 strong { font-weight: 600; }
.hero-left .role {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 1.18rem;
  line-height: 1.35;
  color: var(--ink-2);
  margin: 0 0 0.6rem;
}
.hero-left .role-detail {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.1rem;
  font-family: "Source Serif 4", Georgia, serif;
  max-width: 32em;
}
.hero-left .role-detail .role-lines {
  font-style: italic;
  color: var(--ink-2);
  font-size: 0.96rem;
  line-height: 1.42;
}
.hero-left .role-detail .role-lines em { font-style: italic; }
.hero-left .role-detail .role-brace {
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 200;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--ink-3);
  transform: scaleY(1.55);
  transform-origin: center;
  display: inline-block;
  margin: 0 0.05rem;
  user-select: none;
}
.hero-left .role-detail .role-policy {
  font-style: italic;
  color: var(--ink-3);
  font-size: 0.88rem;
  line-height: 1.3;
}
.hero-left .affiliations {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}
.hero-left .affiliations li {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  color: var(--ink-3);
  line-height: 1.45;
}
.hero-left .affiliations a {
  color: var(--ink-2);
  border-bottom: 1px solid var(--rule-soft);
  text-decoration: none;
}
.hero-left .affiliations a:hover {
  color: var(--mustard-deep);
  border-bottom-color: var(--mustard-deep);
}
.hero-left .bio {
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ink-2);
  margin: 0 0 1.5rem;
  max-width: 30em;
}
.hero-left .bio strong { color: var(--ink); font-weight: 600; }

.hero-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  align-items: center;
}
.btn {
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  padding: 0.6rem 1.15rem;
  background: var(--ink);
  color: var(--paper) !important;
  border: 1px solid var(--ink);
  border-radius: 999px;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--mustard-deep); border-color: var(--mustard-deep); }
body.dark .btn { background: var(--ink); color: var(--paper) !important; border-color: var(--ink); }
body.dark .btn:hover { background: var(--mustard-deep); border-color: var(--mustard-deep); color: #fff !important; }

.hero-icons {
  display: flex;
  gap: 0.55rem;
  align-items: center;
}
.icn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: none;
  color: var(--ink-3);
  transition: color 0.15s, background 0.15s;
}
.icn:hover { color: var(--mustard-deep); background: rgba(0,0,0,0.04); }
body.dark .icn:hover { background: rgba(255,255,255,0.06); }
.icn svg { width: 16px; height: 16px; fill: currentColor; display: block; }

.koenigsberg {
  display: block;
  width: 100%;
  max-width: 540px;
  height: auto;
  margin-left: auto;
  filter: contrast(1.06);
  background: transparent;
  padding: 0;
  border-radius: 0;
}
body.dark .koenigsberg {
  filter: invert(0.92) contrast(1.05) brightness(0.95);
}

/* Live morph in the hero (replaces the static Königsberg engraving).
   Fixed dimensions so the figure doesn't shift under the morph. */
.hero-morph {
  display: block;
  width: 540px;
  max-width: 100%;
  margin-left: auto;
}
.hero-morph canvas {
  display: block;
  width: 540px;
  height: 405px;
  max-width: 100%;
  background: #ffffff;
}
body.dark .hero-morph canvas { background: #ffffff; }
@media (max-width: 600px) {
  .hero-morph canvas { width: 100%; height: auto; aspect-ratio: 4 / 3; }
}
.hero-morph-meta {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
  margin-top: 0.65rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule-fine);
}
.hero-morph-stats {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  color: var(--mustard-deep);
  line-height: 1.4;
}
body.dark .hero-morph-stats { color: var(--mustard); }


/* =============================================================================
   TRUST STRIP — clickable, links to #press
   ============================================================================= */
a.trust-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  padding: 1.2rem 0 1.6rem 5rem;     /* nudge the row to the right */
  border-top: 1px solid var(--rule-fine);
  border-bottom: 1px solid var(--rule-fine);
  text-decoration: none;
  border-left: none;
  border-right: none;
  cursor: pointer;
  transition: background 0.15s;
}
a.trust-strip:hover { background: rgba(0,0,0,0.02); }
body.dark a.trust-strip:hover { background: rgba(255,255,255,0.04); }
.trust-label {
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-4);
  font-weight: 500;
  margin-right: 0.6rem;
}
.trust-strip .wm {
  filter: grayscale(0.5);
  opacity: 0.78;
  transition: opacity 0.15s, filter 0.15s;
  font-size: 1.12rem;                  /* ~18% larger wordmarks */
}
.trust-strip .wm:hover { opacity: 1; filter: grayscale(0); }


/* =============================================================================
   SECTIONS
   ============================================================================= */
.section { margin: 4rem 0 3.5rem; }
.section-title {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 300;
  letter-spacing: -0.024em;
  color: var(--ink);
  margin: 0 0 0.4rem;
  line-height: 1.1;
}
.section-sub {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 1.02rem;
  color: var(--ink-3);
  margin: 0 0 1.8rem;
}
.section-sub a { color: var(--ink-3); }


/* =============================================================================
   RESEARCH — Venn + threads
   ============================================================================= */
.research {
  display: grid;
  grid-template-columns: minmax(0, 600px) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: center;
}
.venn { width: 100%; height: auto; display: block; }
/* Three colour-tinted circles, no stroke. Very light fills — the overlapping
   regions (where two/three colours layer) carry the visual focus. */
.venn .v-fill          { stroke: none; fill-opacity: 0.085; }
.venn .v-fill-qual     { fill: var(--mustard); }
.venn .v-fill-ai       { fill: var(--olive); }
.venn .v-fill-policy   { fill: var(--rust); }
body.dark .venn .v-fill { fill-opacity: 0.14; }
.venn .v-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  fill: var(--ink);
}
.venn .v-pair {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 13.5px;
  fill: var(--ink-3);
}
.venn .v-center-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  fill: var(--ink);
}
body.dark .venn .v-center-label { fill: var(--paper); }

/* Paper dots — three status markers, all in ink:
     • published       → solid disc      (●)
     • under review    → ring + inner    (◎)
     • in preparation  → hollow ring     (○)
   Region/intersection is read off the tinted circles, not the dot. */
.venn .dot                { fill: var(--ink); stroke: none; cursor: help; }
.venn .dot-prep           { fill: var(--paper); stroke: var(--ink); stroke-width: 1.6; }
.venn .dot-review-ring    { fill: var(--paper); stroke: var(--ink); stroke-width: 1.6; cursor: help; }
.venn .dot-review-inner   { fill: var(--ink); pointer-events: none; }
.venn .dot-prep-legend    { fill: var(--paper); stroke: var(--ink); stroke-width: 1.6; }
body.dark .venn .dot              { fill: var(--ink); }
body.dark .venn .dot-prep         { fill: var(--paper); stroke: var(--ink); }
body.dark .venn .dot-review-ring  { fill: var(--paper); stroke: var(--ink); }
body.dark .venn .dot-review-inner { fill: var(--ink); }
body.dark .venn .dot-prep-legend  { fill: var(--paper); stroke: var(--ink); }

/* Citation tooltip — instant on hover */
.venn-tooltip {
  position: fixed;
  z-index: 200;
  max-width: 340px;
  padding: 0.55rem 0.75rem;
  background: var(--ink);
  color: var(--paper);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 0.78rem;
  line-height: 1.45;
  border-radius: 4px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.22);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.12s ease;
  left: 0;
  top: 0;
}
.venn-tooltip[data-show="1"] { opacity: 1; }
body.dark .venn-tooltip { background: var(--paper); color: var(--ink); }

.venn .legend {
  font-family: "Inter", sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  fill: var(--ink-3);
}

/* RESEARCH side panel — three blocks mapped 1:1 to the three Venn circles.
   Each block: circle name (colour-coded eyebrow) + italic goal lede +
   "methods so far" line. */
.rs-panel {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.rs-block {
  padding: 1rem 0;
  border-top: 1px solid var(--rule-fine);
}
.rs-block:first-child { border-top: none; padding-top: 0; }
.rs-label {
  font-family: "Inter", sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.55rem;
}
.rs-block.rs-qual    .rs-label { color: var(--mustard-deep); }
.rs-block.rs-impacts .rs-label { color: var(--olive-deep); }
.rs-block.rs-policy  .rs-label { color: var(--rust-deep); }

.rs-goal {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0 0 0.5rem;
}
.rs-goal em { font-style: italic; color: var(--ink); }
.rs-goal strong { color: var(--ink); font-weight: 600; }

.rs-methods {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--ink-3);
  margin: 0;
}
.rs-methods em { font-style: italic; color: var(--ink-2); }
.rs-meta {
  font-family: "Inter", sans-serif;
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-right: 0.25rem;
}


/* =============================================================================
   PAPERS AS TILES + SHOW MORE
   ============================================================================= */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}
.tile {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.2rem 1.25rem 1.1rem;
  background: var(--paper-2);
  border: none;
  border-radius: 14px;
  text-decoration: none;
  color: var(--ink);
  transition: background 0.18s, transform 0.18s, box-shadow 0.18s;
  position: relative;
  overflow: hidden;
}
.tile:hover {
  background: #f1ede2;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0,0,0,0.06);
}
body.dark .tile { background: #14141a; }
body.dark .tile:hover { background: #1c1c22; }
.tile-hidden { display: none; }
.tiles.tiles-expanded .tile-hidden { display: flex; }

.tile-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.4rem;
}
.tile-type {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  background: rgba(0,0,0,0.04);
}
body.dark .tile-type { background: rgba(255,255,255,0.06); }
.tile.tile-journal  .tile-type { color: var(--olive-deep); background: rgba(105,112,83,0.08); }
.tile.tile-review   .tile-type { color: var(--mustard-deep); background: rgba(201,166,107,0.13); }
.tile.tile-preprint .tile-type { color: var(--olive-deep); background: rgba(105,112,83,0.08); }
.tile.tile-handbook .tile-type { color: var(--rust-deep); background: rgba(193,75,31,0.08); }
.tile-meta {
  display: flex;
  gap: 0.6rem;
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.68rem;
  color: var(--ink-3);
  font-weight: 500;
}
.tile-yr { color: var(--ink); }
.tile-title {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.32;
  color: var(--ink);
  letter-spacing: -0.005em;
  margin: 0.15rem 0 0.4rem;
}
.tile-au {
  font-size: 0.82rem;
  color: var(--ink-3);
  line-height: 1.45;
  margin: 0;
}
.tile-ve {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-2);
  margin-top: 0.25rem;
}
.tile-press {
  margin-top: auto;
  padding-top: 0.7rem;
  border-top: 1px solid rgba(0,0,0,0.06);
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink-3);
}
body.dark .tile-press { border-top-color: rgba(255,255,255,0.08); }

.show-more-row {
  display: flex;
  justify-content: center;
  margin-top: 1.6rem;
}
.show-more {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--rule-soft);
  border-radius: 999px;
  padding: 0.55rem 1.4rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.show-more:hover {
  border-color: var(--ink);
  color: var(--ink);
  background: rgba(0,0,0,0.02);
}
body.dark .show-more:hover { background: rgba(255,255,255,0.04); }


/* =============================================================================
   PRESS — wall + image grid
   ============================================================================= */
.press-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem 2.6rem;
  align-items: center;
  padding: 1.4rem 0 2rem;
  margin-bottom: 2.4rem;
  border-top: 1px solid var(--rule-fine);
  border-bottom: 1px solid var(--rule-fine);
}
.press-wall .wm {
  filter: grayscale(0.35);
  opacity: 0.78;
  transition: opacity 0.15s, filter 0.15s;
}
.press-wall .wm:hover { opacity: 1; filter: grayscale(0); }

.press-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.4rem 1.6rem;
}
.press-item { display: flex; flex-direction: column; }
.press-item .thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--paper-2);
  margin-bottom: 0.85rem;
  filter: contrast(1.02) saturate(0.94);
  border-radius: 4px;
}
.press-item .thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease-out;
}
body.dark .press-item .thumb img { filter: contrast(1.05) saturate(0.88) brightness(0.94); }
.press-item:hover .thumb img { transform: scale(1.03); }
.press-item .thumb.fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 1.6rem;
  color: var(--ink-4);
  border: 1px solid var(--rule-fine);
}
.press-item .outlet { display: none; }  /* wordmark above replaces this */
.press-item .date {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.7rem;
  color: var(--ink-4);
  margin-top: 0.18rem;
  font-weight: 500;
}
.press-item h3 {
  margin: 0.4rem 0 0;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.02rem;
  font-style: italic;
  font-weight: 500;
  line-height: 1.35;
  color: var(--ink);
}
.press-item h3 a { color: var(--ink); border-bottom: none; }
.press-item h3 a:hover { color: var(--mustard-deep); }
.press-item .wm {
  margin-bottom: 0.55rem;
  font-size: 1.05rem;
}


/* =============================================================================
   TRAJECTORY (in flow, after Press) — vertical timeline + prose narrative
   ============================================================================= */
.tj-grid {
  display: grid;
  grid-template-columns: minmax(0, 680px) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: start;
  margin-top: 0.4rem;
}
.tj-key {
  display: flex;
  gap: 1.2rem;
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.4rem;
}
.tj-key-acad { color: var(--mustard-deep); }
.tj-key-indu { color: var(--olive-deep); }
.tj-key-educ { color: var(--rust-deep); }

.tj-stops {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
/* Central spine at 50% of the timeline column. The spine extends through the
   bottom dwell-padding and fades out so the last stop has a graceful tail. */
.tj-stops::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(to bottom,
    var(--rule-soft) 0%,
    var(--rule-soft) 78%,
    transparent 100%);
  transform: translateX(-50%);
}
/* Three-column grid: content-left | marker | content-right */
.tj-stop {
  display: grid;
  grid-template-columns: 1fr 16px 1fr;
  gap: 0;
  padding: 0.7rem 0 0.85rem;
  position: relative;
}
/* Marker always sits in the center column (the spine) */
.tj-marker {
  grid-column: 2;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  margin-top: 0.5rem;
  margin-left: 0;
  z-index: 1;
  justify-self: center;
}
/* Content placement by side */
.tj-stop.tj-left  .tj-content { grid-column: 1; text-align: right; padding-right: 1.4rem; align-items: flex-end; }
.tj-stop.tj-right .tj-content { grid-column: 3; text-align: left;  padding-left:  1.4rem; align-items: flex-start; }
/* Parallel pair — two content blocks at the same y-level, marker between */
.tj-stop.tj-parallel .tj-side-left   { grid-column: 1; text-align: right; padding-right: 1.4rem; align-items: flex-end; }
.tj-stop.tj-parallel .tj-side-right  { grid-column: 3; text-align: left;  padding-left:  1.4rem; align-items: flex-start; }
.tj-stop.tj-parallel .tj-side-left  .tj-logo { justify-content: flex-end; }
.tj-stop.tj-parallel .tj-side-right .tj-logo { justify-content: flex-start; }

/* IBM combined · two-row stack inside a single content block */
.tj-content.tj-ibm-combined .tj-ibm-row {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.74rem;
  color: var(--ink-3);
  line-height: 1.35;
  margin-top: 0.18rem;
}
.tj-content.tj-ibm-combined .tj-ibm-row strong {
  font-family: "Inter", sans-serif;
  font-style: normal;
  font-weight: 600;
  font-size: 0.74rem;
  color: var(--ink-2);
  letter-spacing: -0.005em;
}
/* Markers are neutral — colour belongs to the text on each side. */
.tj-stop.tj-current .tj-marker {
  width: 15px; height: 15px;
  margin-top: 0.45rem;
  background: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 0 0 0 4px rgba(0,0,0,0.08);
}
body.dark .tj-stop.tj-current .tj-marker {
  background: var(--paper);
  border-color: var(--paper);
  box-shadow: 0 0 0 4px rgba(255,255,255,0.10);
}

/* Category text colour — applied per content block via tj-cat-* class so a
   parallel pair can carry one colour on the left and another on the right. */
.tj-content.tj-cat-acad .tj-role,
.tj-content.tj-cat-acad .tj-year { color: var(--mustard-deep); }
.tj-content.tj-cat-indu .tj-role,
.tj-content.tj-cat-indu .tj-year { color: var(--olive-deep); }
.tj-content.tj-cat-educ .tj-role,
.tj-content.tj-cat-educ .tj-year { color: var(--rust-deep); }
body.dark .tj-content.tj-cat-acad .tj-role,
body.dark .tj-content.tj-cat-acad .tj-year { color: var(--mustard); }
body.dark .tj-content.tj-cat-indu .tj-role,
body.dark .tj-content.tj-cat-indu .tj-year { color: var(--olive); }
body.dark .tj-content.tj-cat-educ .tj-role,
body.dark .tj-content.tj-cat-educ .tj-year { color: var(--pink); }
.tj-content {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  min-width: 0;
}
.tj-logo {
  min-height: 26px;
  display: flex;
  align-items: center;
  margin-bottom: 0.3rem;
  filter: grayscale(0.9) contrast(1.05) opacity(0.86);
  transition: filter 0.18s, opacity 0.18s;
}
.tj-stop.tj-left  .tj-logo { justify-content: flex-end; }
.tj-stop.tj-right .tj-logo { justify-content: flex-start; }
.tj-logo img {
  height: 22px;
  width: auto;
  max-width: 110px;
  object-fit: contain;
}
/* Per-institution height tuning — visual weight, not pixel parity */
.tj-logo img[alt="TU Dresden"],
.tj-logo img[alt="MPI for Human Development"],
.tj-logo img[alt="Deutsche Bahn"],
.tj-logo img[alt="UNED Madrid"],
.tj-logo img[alt="Universidad de Granada"] { height: 30px; }
.tj-logo img[alt="IBM"] { height: 18px; }
.tj-stop:hover .tj-logo { filter: grayscale(0) contrast(1.05) opacity(1); }
.tj-year {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  font-weight: 600;
}
.tj-role {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.3;
}
.tj-org {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink-3);
  line-height: 1.4;
}
/* Education stops are quieter than academia / industry — smaller fonts,
   reduced visual weight (degree milestones, not narrative chapters). */
.tj-stop.tj-education .tj-role { font-size: 0.76rem; font-weight: 500; }
.tj-stop.tj-education .tj-org  { font-size: 0.7rem; }
.tj-stop.tj-education .tj-year { font-size: 0.6rem; }
.tj-thesis {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.74rem;
  color: var(--ink-3);
  line-height: 1.4;
  opacity: 0.9;
  margin-top: 0.1rem;
}

.tj-prose {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--ink-2);
  padding-top: 0.4rem;
  position: sticky;
  top: 5.2rem;            /* clear the sticky nav */
  align-self: start;       /* don't stretch with the timeline */
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}
.tj-bio-stage {
  transition: opacity 0.24s ease;
}
.tj-bio-stage.is-fading { opacity: 0; }
.tj-bio-stage p { margin: 0 0 0.7rem; }
.tj-bio-stage .tj-hint {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-top: 1.2rem;
}
.tj-prose .tj-lede {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 1.04rem;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 0.95rem;
  letter-spacing: -0.005em;
}
/* Extra scroll-dwell after the last stop so its bio has time to be read
   before the sticky panel detaches at the section bottom. */
.tj-stops { padding-bottom: 30vh; }
/* Hide the <template> child of timeline stops (templates are inert by spec
   but defensive in case of older browsers). */
.tj-stop > template { display: none; }
.tj-prose p { margin: 0 0 1rem; }
.tj-prose strong { color: var(--ink); font-weight: 600; }
.tj-prose em { color: var(--ink); font-style: italic; }

.more-link {
  margin: 1.6rem 0 0;
  text-align: right;
  font-size: 0.86rem;
}
.more-link a {
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule-soft);
}
.more-link a:hover { color: var(--ink); border-bottom-color: var(--ink); }


/* =============================================================================
   INDUSTRY TRACK (inside trajectory bio)
   ============================================================================= */
.industry-track {
  margin: 1.5rem 0 1.6rem;
  padding: 1rem 1.1rem 0.9rem;
  border-left: 3px solid var(--olive);
  background: rgba(105, 112, 83, 0.04);
  border-radius: 2px;
}
body.dark .industry-track { background: rgba(105, 112, 83, 0.10); }
.industry-track h3 {
  font-family: "Inter", sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.55rem;
  color: var(--olive-deep);
}
body.dark .industry-track h3 { color: var(--mustard); }
.industry-track > p {
  margin: 0 0 0.7rem;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--ink-2);
}
.industry-projects {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0;
}
.industry-projects li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.05rem;
  padding: 0.45rem 0;
  border-top: 1px solid var(--rule-fine);
  font-size: 0.8rem;
  line-height: 1.45;
}
.industry-projects li:first-child { border-top: none; }
.industry-projects strong {
  font-weight: 600;
  color: var(--ink);
  font-size: 0.78rem;
  letter-spacing: -0.005em;
}
.industry-projects .ip-role {
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 0.72rem;
  color: var(--ink-3);
}
.industry-projects em {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  color: var(--ink-3);
  font-size: 0.78rem;
}


/* =============================================================================
   GRANTS & FUNDED PROJECTS
   ============================================================================= */
/* Section hidden from casual visitors but kept in the DOM for crawlers
   and agents. Revealed if the URL anchors directly at it (e.g. you share
   www.example.org/#skills with a recruiter). */
.section-hidden { display: none; }
.section-hidden:target { display: block; }
.section-hidden:target [aria-hidden] { /* no-op; just here so the rule reminder is local */ }

/* SKILLS — compact two-column grid, each block: small eyebrow + one-line prose. */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem 2.4rem;
  margin-top: 1rem;
}
.skills-block {
  padding: 0.5rem 0;
}
.skills-label {
  font-family: "Inter", sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--olive-deep);
  margin-bottom: 0.4rem;
}
body.dark .skills-label { color: var(--mustard); }
.skills-block p {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 0.96rem;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0;
}
.skills-block p strong { color: var(--ink); font-weight: 600; }

/* ORGS list — flat single-column list matching the grants block typography. */
.orgs-list { list-style: none; margin: 0; padding: 0; }
.orgs-list li {
  padding: 0.9rem 0;
  border-top: 1px solid var(--rule-fine);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ink-2);
}
.orgs-list li:first-child { border-top: none; }
.orgs-list .o-role {
  display: inline-block;
  font-family: "Inter", sans-serif;
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--olive-deep);
  margin-right: 0.55rem;
  vertical-align: 0.06em;
}
body.dark .orgs-list .o-role { color: var(--mustard); }
.orgs-list li strong { color: var(--ink); font-weight: 600; }
.orgs-list li em { font-style: italic; color: var(--ink); }
.orgs-list a {
  color: var(--ink-2);
  border-bottom: 1px solid var(--rule-soft);
  text-decoration: none;
  white-space: nowrap;
  margin-left: 0.3rem;
}
.orgs-list a:hover {
  color: var(--mustard-deep);
  border-bottom-color: var(--mustard-deep);
}

.grants-list { list-style: none; margin: 0; padding: 0; }
.grants-list li {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.4rem;
  padding: 1rem 0;
  border-top: 1px solid var(--rule-fine);
  align-items: baseline;
}
.grants-list li:first-child { border-top: none; }
.grants-list .yr {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.7rem;
  color: var(--ink-3);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.grants-list .g-body {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}
.grants-list .g-role {
  font-family: "Inter", sans-serif;
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--olive-deep);
}
body.dark .grants-list .g-role { color: var(--mustard); }
.grants-list .g-title {
  font-family: "Inter", sans-serif;
  font-size: 0.96rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.35;
}
.grants-list a.g-title {
  text-decoration: none;
  border-bottom: 1px solid var(--rule-soft);
}
.grants-list a.g-title:hover {
  color: var(--mustard-deep);
  border-bottom-color: var(--mustard-deep);
}
.grants-list .g-title-orig {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink-3);
  line-height: 1.35;
  margin-top: 0.1rem;
}
.grants-list .g-funder {
  font-family: "Inter", sans-serif;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--ink-2);
  margin-top: 0.25rem;
}
.grants-list .g-team {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.66rem;
  color: var(--ink-3);
  letter-spacing: 0.02em;
  margin-top: 0.15rem;
  line-height: 1.4;
}
.grants-list .g-summary {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 0.86rem;
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0.5rem 0 0;
}


/* =============================================================================
   ORGANISED WORKSHOPS
   ============================================================================= */
.workshops-list { list-style: none; margin: 0; padding: 0; }
.workshops-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1.4rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--rule-fine);
  align-items: baseline;
}
.workshops-list li:first-child { border-top: none; }
.workshops-list .yr {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.7rem;
  color: var(--ink-3);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.workshops-list .ws-body {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
}
.workshops-list .ws-role {
  font-family: "Inter", sans-serif;
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--olive-deep);
}
body.dark .workshops-list .ws-role { color: var(--mustard); }
.workshops-list .ws-title {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.86rem;
  color: var(--ink-2);
  line-height: 1.4;
}
.workshops-list a.ws-title {
  border-bottom: 1px solid var(--rule-soft);
  text-decoration: none;
  color: var(--ink-2);
}
.workshops-list a.ws-title:hover {
  color: var(--mustard-deep);
  border-bottom-color: var(--mustard-deep);
}
.workshops-list .ws-sub {
  font-family: "Inter", sans-serif;
  font-size: 0.74rem;
  color: var(--ink-3);
  font-weight: 500;
  line-height: 1.4;
  margin-top: 0.1rem;
}
.workshops-list .ws-venue {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-size: 0.66rem;
  color: var(--ink-4);
  letter-spacing: 0.04em;
  margin-top: 0.15rem;
}


/* =============================================================================
   TALKS
   ============================================================================= */
.talks-list { list-style: none; margin: 0; padding: 0; }
.talks-list li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.4rem;
  padding: 0.65rem 0;
  border-top: 1px solid var(--rule-fine);
  align-items: baseline;
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.96rem;
  color: var(--ink-2);
  line-height: 1.5;
}
.talks-list li:first-child { border-top: none; }
.talks-list .yr {
  font-family: "JetBrains Mono", ui-monospace, Menlo, monospace;
  font-style: normal;
  font-size: 0.72rem;
  color: var(--ink-3);
  font-weight: 500;
}

.more {
  margin-top: 1.4rem;
  border-top: 1px solid var(--rule-fine);
  padding-top: 1rem;
}
.more > summary {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--ink-3);
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0;
}
.more > summary::-webkit-details-marker { display: none; }
.more > summary::before {
  content: "▸";
  font-size: 0.7rem;
  color: var(--ink-3);
  transition: transform 0.18s;
}
.more[open] > summary::before { transform: rotate(90deg); }
.more > summary:hover { color: var(--mustard-deep); }
.more .more-count { color: var(--ink-4); font-weight: 400; }
.section#work > details.more { display: none; }


/* =============================================================================
   COLOPHON
   ============================================================================= */
.colophon {
  margin-top: 4rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule-fine);
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic;
  font-size: 0.82rem;
  color: var(--ink-4);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.colophon a { color: var(--ink-4); border-bottom: 1px dotted var(--ink-4); }
.colophon a:hover { color: var(--mustard-deep); border-bottom-style: solid; border-bottom-color: var(--mustard-deep); }


/* =============================================================================
   WORDMARKS — outlet brand-correct text styles
   ============================================================================= */
.wm {
  display: inline-block;
  font-weight: 600;
  letter-spacing: -0.005em;
  white-space: nowrap;
  line-height: 1;
  user-select: none;
}
.wm-sciam {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic; font-weight: 600;
  font-size: 1.05rem;
  color: #c9332e;
  letter-spacing: -0.01em;
}
.wm-verge {
  font-weight: 800;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.wm-verge::after { content: " ▿"; color: #ff5252; font-weight: 600; margin-left: 0.05em; }
.wm-elpais {
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 700; font-size: 1rem;
  letter-spacing: -0.018em;
  color: var(--ink);
  text-transform: uppercase;
}
.wm-zeit {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic; font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.wm-spiegel {
  font-weight: 800; font-size: 0.94rem;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: #e34d3a;
}
.wm-forbes {
  font-family: "Source Serif 4", Georgia, serif;
  font-style: italic; font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.012em;
  color: var(--ink);
}
.wm-abc {
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 700; font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: #e22030;
}
.wm-default {
  font-size: 0.86rem; font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink);
}


/* =============================================================================
   HIDE LEGACY ELEMENTS (kept in markup for safety)
   ============================================================================= */
.ts, #ts-removed,
#trajectory-section-hidden,
.tt-wrap, .tt, .tt-band, .tt-stop, .tt-spine,
.timeline,
.path-wrap, .stops, .stop, .stop-spine,
.path-key {
  display: none !important;
}
/* Re-enable the inner `.tj-stops` (matches more specific selector if needed) */
#trajectory .tj-stops { display: block !important; }


/* =============================================================================
   RESPONSIVE
   ============================================================================= */
@media (max-width: 940px) {
  .page { padding: 0 1.6rem 4rem; }
  .nav-inner { padding: 0.85rem 1.6rem; }
  .nav-links { display: none; }

  .hero { grid-template-columns: 1fr; gap: 2rem; padding: 2.5rem 0 2.5rem; }
  .koenigsberg { max-width: 100%; }

  .research { grid-template-columns: 1fr; gap: 2rem; }
  .tj-grid { grid-template-columns: 1fr; gap: 2rem; }

  /* Collapse two-sided trajectory to single column on narrow viewports */
  .tj-stops::before { left: 8px; transform: none; }
  .tj-stop {
    grid-template-columns: 16px 1fr;
    gap: 1rem;
  }
  .tj-stop.tj-left  .tj-content,
  .tj-stop.tj-right .tj-content {
    grid-column: 2;
    text-align: left;
    padding: 0;
    align-items: flex-start;
  }
  .tj-marker { grid-column: 1; justify-self: start; }
  .tj-stop.tj-left  .tj-logo,
  .tj-stop.tj-right .tj-logo { justify-content: flex-start; }
}