/* Blackmon Lab v3: scholarly + phylogenetic sidebar */

:root {
  --paper: #faf6ec;
  --paper-raised: #ffffff;
  --paper-sunk: #f3ece0;
  --ink: #1e1713;
  --ink-dim: #5a4c46;
  --ink-faint: #8b7a72;
  --rule: #d8ccba;
  --rule-strong: #baa68a;
  --accent: #500000;
  --accent-hover: #7a1010;
  --accent-dim: rgba(80, 0, 0, 0.07);
  --highlight: #e6d5a8;
  --branch: #c8b8a0;
  --branch-active: #500000;
  --font-text: 'Source Serif 4', 'Iowan Old Style', 'Charter', Georgia, serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;
}
:root[data-theme="dark"] {
  --paper: #0e0b0a;
  --paper-raised: #171311;
  --paper-sunk: #120e0d;
  --ink: #eae2d3;
  --ink-dim: #a89c8d;
  --ink-faint: #7a6d60;
  --rule: #2c2420;
  --rule-strong: #463a32;
  --accent: #d14a5a;
  --accent-hover: #e56070;
  --accent-dim: rgba(209, 74, 90, 0.12);
  --highlight: #3a2f1e;
  --branch: #3a2e2a;
  --branch-active: #d14a5a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-text);
  background: var(--paper);
  color: var(--ink);
  font-size: 19px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "liga", "kern", "onum";
}

a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; transition: color 0.15s; }
a:hover { color: var(--accent-hover); }
code, .mono { font-family: var(--font-mono); font-size: 0.9em; }

/* Prototype banner */
.proto-banner {
  background: var(--highlight);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 16px;
  text-align: center;
  border-bottom: 1px solid var(--rule-strong);
  position: sticky; top: 0; z-index: 200;
}
.proto-banner a { color: var(--accent); }

/* Layout shell */
.shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  max-width: 1440px;
  margin: 0 auto;
  min-height: 100vh;
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
}

/* Sidebar */
.sidebar {
  border-right: 1px solid var(--rule);
  padding: 32px 24px 60px;
  position: sticky;
  top: 28px;
  align-self: start;
  max-height: calc(100vh - 28px);
  overflow-y: auto;
  font-size: 14.5px;
}
.sidebar::-webkit-scrollbar { width: 8px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 10px; }

.brand {
  display: flex; align-items: baseline; gap: 10px;
  margin-bottom: 10px;
}
.brand .root-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  transform: translateY(-1px);
}
.brand .brand-name {
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.brand .brand-affil {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  margin-left: auto;
}

/* Phylogenetic tree */
.tree, .tree ul { list-style: none; }
.tree { padding-left: 18px; position: relative; }
.tree ul { padding-left: 16px; }
.tree li { position: relative; padding: 3px 0 3px 18px; }
.tree li::before {
  content: '';
  position: absolute;
  left: 0; top: 14px;
  width: 12px; height: 1px;
  background: var(--branch);
}
.tree li::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: var(--branch);
}
.tree li:last-child::after { height: 14px; }

/* Top-level categories: show branch lines connecting to backbone */
.tree > li { padding-left: 0; margin-top: 10px; position: relative; }
.tree > li::before {
  display: block;
  left: -14px; top: 13px;
  width: 12px; height: 1px;
}
.tree > li::after { display: none; }
.tree > li:first-child { margin-top: 0; }

/* Backbone: vertical trunk connecting all top-level categories */
.tree::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 0;
  bottom: 15px;
  width: 1px;
  background: var(--branch);
}

/* Connector from brand root-dot down to trunk */
.brand { position: relative; }
.brand::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  bottom: -10px;
  width: 1px;
  background: var(--branch);
}

.tree > li > a, .tree > li > span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  display: inline-block;
  margin-bottom: 2px;
}
.tree li a, .tree li span {
  color: var(--ink-dim);
  text-decoration: none;
  display: inline-block;
  padding: 1px 0;
  transition: color 0.15s;
}
.tree li a:hover { color: var(--accent); }
.tree li a.active { color: var(--accent); font-weight: 600; padding-left: 4px; }
.tree li a.active::before {
  content: '';
  position: absolute;
  left: 9px; top: 11px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

/* Collapsible tree categories — all start open, click to collapse */
.tree > li > ul { display: none; }
.tree > li.open > ul { display: block; }
.tree > li > span {
  cursor: pointer;
  user-select: none;
}
.tree > li > span::before {
  content: '+';
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  margin-right: 5px;
  display: inline-block;
  width: 8px;
}
.tree > li.open > span::before { content: '−'; }

/* Main reading column */
main.column {
  padding: 32px 56px 120px;
  max-width: 820px;
}
@media (max-width: 900px) {
  main.column { padding: 28px 24px 80px; }
}

.crumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.crumb a { color: var(--ink-faint); text-decoration: none; }
.crumb a:hover { color: var(--accent); }

h1.title {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}
.lede {
  font-size: 21px;
  line-height: 1.55;
  color: var(--ink-dim);
  margin-bottom: 32px;
  max-width: 36em;
}
p { margin-bottom: 16px; max-width: 38em; }
p a { word-break: break-word; }

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 56px 0 16px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}
h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 24px 0 8px;
}

/* Layered disclosure */
details.layer {
  border-bottom: 1px solid var(--rule);
  padding: 18px 0;
}
details.layer[open] { padding-bottom: 24px; }
details.layer > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 18px;
  font-weight: 500;
  color: var(--ink);
  padding: 2px 0;
}
details.layer > summary::-webkit-details-marker { display: none; }
details.layer > summary::before {
  content: '+';
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.1rem;
  width: 16px;
  flex-shrink: 0;
  transition: transform 0.15s;
}
details.layer[open] > summary::before { content: '−'; }
.layer-summary-text { flex: 1; }
.layer-summary-text .sum-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 3px;
}
.layer-summary-text .sum-head {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}
.layer-summary-text .sum-trail {
  font-size: 15px;
  color: var(--ink-dim);
  font-weight: 400;
  display: block;
  margin-top: 2px;
}
.layer-body {
  margin-top: 14px;
  padding-left: 34px;
}
.layer-body p { margin-bottom: 12px; font-size: 17px; }
.layer-body .layer-links {
  font-family: var(--font-mono);
  font-size: 13px;
  margin-top: 10px;
  color: var(--ink-faint);
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.layer-body .layer-links a { color: var(--accent); }

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  margin: 24px 0 32px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.stat .stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat .stat-label {
  font-size: 12px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 6px;
  display: block;
}

/* Pullquote */
.pullquote {
  font-size: 21px;
  font-style: italic;
  color: var(--ink-dim);
  padding: 4px 0 4px 24px;
  margin: 32px 0;
  border-left: 3px solid var(--accent);
  max-width: 34em;
}

/* Fixed chrome (theme toggle + Cmd-K hint) */
.chrome {
  position: fixed;
  top: 36px;
  right: 28px;
  display: flex;
  gap: 10px;
  z-index: 50;
  align-items: center;
}
.chrome .shortcut-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--paper-raised);
  cursor: pointer;
}
.chrome .shortcut-hint kbd {
  font-family: var(--font-mono);
  background: var(--paper-sunk);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 10px;
  border: 1px solid var(--rule);
}
.chrome .theme-btn {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  color: var(--ink-dim);
  width: 30px; height: 30px; border-radius: 6px;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}
@media (max-width: 640px) { .chrome .shortcut-hint { display: none; } }

/* Command palette */
.palette-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 14vh;
  z-index: 300;
}
.palette-overlay.show { display: flex; }
.palette {
  background: var(--paper-raised);
  border: 1px solid var(--rule-strong);
  border-radius: 10px;
  width: min(560px, 90vw);
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  overflow: hidden;
  font-family: var(--font-text);
}
.palette input {
  width: 100%;
  padding: 16px 20px;
  border: none;
  background: transparent;
  font-family: var(--font-text);
  font-size: 17px;
  color: var(--ink);
  outline: none;
  border-bottom: 1px solid var(--rule);
}
.palette input::placeholder { color: var(--ink-faint); }
.palette-results { max-height: 50vh; overflow-y: auto; }
.palette-item {
  padding: 10px 20px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  color: var(--ink);
  text-decoration: none;
}
.palette-item:hover, .palette-item.selected {
  background: var(--accent-dim);
  color: var(--accent);
}
.palette-item .cat {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-width: 90px;
}
.palette-item.selected .cat { color: var(--accent); }

/* Colophon footer */
footer.colophon {
  margin-top: 80px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
}
footer.colophon a { color: var(--ink-faint); text-decoration: none; }
footer.colophon a:hover { color: var(--accent); }
footer.colophon .endpoints a {
  color: var(--accent);
  margin-right: 14px;
}

/* Agent activity inline */
.agent-box {
  background: var(--paper-sunk);
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  margin: 28px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-dim);
}
.agent-box .agent-line { display: block; }
.agent-box .agent-tag { color: var(--accent); font-weight: 500; margin-right: 10px; }

/* Ask the lab */
.ask-bar {
  margin: 36px 0 40px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.ask-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.ask-form {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 6px;
}
.ask-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-text);
  font-size: 19px;
  color: var(--ink);
  padding: 6px 0;
}
.ask-form input::placeholder { color: var(--ink-faint); font-style: italic; }
.ask-form button {
  background: transparent;
  border: none;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  transition: transform 0.15s;
}
.ask-form button:hover { transform: translateX(3px); }
.ask-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  margin-top: 10px;
}
.ask-toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--paper);
  padding: 10px 20px; border-radius: 6px;
  font-family: var(--font-mono); font-size: 13px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s, transform 0.25s;
  z-index: 400;
}
.ask-toast.show { opacity: 1; transform: translateX(-50%) translateY(-6px); }

/* Publications bibliography */
.pub-entry {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 20px;
  align-items: baseline;
}
.pub-entry:last-child { border-bottom: none; }
.pub-entry .pub-year {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}
.pub-entry .pub-title {
  display: block;
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 4px;
}
.pub-entry a.pub-title { color: var(--ink); text-decoration: none; border-bottom: 1px dotted var(--rule-strong); padding-bottom: 1px; }
.pub-entry a.pub-title:hover { color: var(--accent); border-color: var(--accent); }
.pub-entry .pub-meta {
  font-size: 13px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
}
.pub-entry .pub-meta em { font-style: italic; color: var(--ink-dim); font-family: var(--font-text); }

/* Member cards (team page) */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin: 18px 0 28px;
}
.member {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 16px;
  display: flex; gap: 14px;
  align-items: flex-start;
  transition: border-color 0.15s, background 0.15s;
}
.member:hover { border-color: var(--rule-strong); }
.member img {
  width: 56px; height: 56px; border-radius: 50%;
  object-fit: cover; object-position: top;
  flex-shrink: 0;
}
.member .m-info { flex: 1; min-width: 0; }
.member .m-name { font-size: 15px; font-weight: 600; color: var(--ink); }
.member .m-role {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 2px;
  display: block;
}
.member .m-bio {
  font-size: 14px;
  color: var(--ink-dim);
  line-height: 1.55;
  margin-top: 6px;
}
.member-wide { grid-column: 1 / -1; }
.member-wide img { width: 84px; height: 84px; }
.alumni-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 8px;
  margin: 18px 0 28px;
}
.alumni-card {
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--paper-raised);
  transition: border-color 0.15s;
}
.alumni-card:hover { border-color: var(--rule-strong); }
.alumni-card .a-name { font-size: 14px; font-weight: 600; }
.alumni-card .a-affil { display: block; font-size: 12px; color: var(--ink-faint); font-family: var(--font-mono); margin-top: 2px; }
.alumni-card a { color: var(--accent); text-decoration: none; }
.alumni-card a:hover { text-decoration: underline; }

/* News list (scholarly timeline) */
.news-entry {
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 20px;
  align-items: baseline;
}
.news-entry:last-child { border-bottom: none; }
.news-entry .news-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}
.news-entry .news-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.news-entry .news-body {
  font-size: 15px;
  color: var(--ink-dim);
  line-height: 1.6;
}
.news-entry .news-body a { color: var(--accent); }