/* ═══════════════════════════ TOKENS ═══════════════════════════ */
:root {
  --bg:         #f5f6fa;
  --bg-alt:     #eef0f6;
  --surface:    #ffffff;
  --surface-hi: #f8f9fc;
  --border:     #e2e5ee;
  --border-hi:  #d0d5e0;

  --ink:        #1a1e2e;
  --ink-2:      #3d4255;
  --ink-3:      #6b7189;
  --ink-4:      #9da2b6;

  --blue:       #3b6cef;
  --blue-soft:  rgba(59,108,239,0.09);
  --blue-med:   rgba(59,108,239,0.18);
  --green:      #16a163;
  --green-soft: rgba(22,161,99,0.09);
  --green-med:  rgba(22,161,99,0.18);
  --amber:      #d08819;
  --amber-soft: rgba(208,136,25,0.09);
  --amber-med:  rgba(208,136,25,0.18);
  --red:        #dc4848;
  --red-soft:   rgba(220,72,72,0.09);

  --r-xl: 20px;
  --r-lg: 14px;
  --r-md: 10px;
  --r-sm: 6px;

  --serif: 'Source Serif 4', Georgia, serif;
  --sans:  'DM Sans', system-ui, sans-serif;
  --mono:  'JetBrains Mono', 'Menlo', monospace;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { overflow-x: clip; scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  overflow-x: clip;
  min-height: 100vh;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

button, input, select { font: inherit; }

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 4px; }

/* ═══════════════════════════ TOPBAR ═══════════════════════════ */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 0;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  padding: 0 24px;
  transition: box-shadow 0.3s;
}
.topbar.scrolled { box-shadow: 0 2px 16px rgba(0,0,0,0.07); }

.logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--ink);
  margin-right: 32px; flex-shrink: 0;
}

.logo-mark {
  width: 28px; height: 28px;
  border-radius: 7px;
  background: linear-gradient(135deg, #3b6cef, #16a163);
  display: flex; align-items: center; justify-content: center;
}
.logo-mark svg { width: 16px; height: 16px; }

.logo-text {
  font-family: var(--serif); font-size: 1.1rem; font-weight: 700;
  letter-spacing: -0.02em;
}

.tab-strip {
  display: flex; align-items: stretch; gap: 0;
  height: 56px; flex: 1;
  overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.tab-strip::-webkit-scrollbar { display: none; }

.tab-btn {
  display: flex; align-items: center; gap: 7px;
  padding: 0 18px; height: 100%;
  font-size: 0.88rem; font-weight: 500;
  color: var(--ink-3); cursor: pointer;
  border: none; background: none;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
  position: relative;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }
.tab-btn svg { width: 17px; height: 17px; stroke-width: 1.8; stroke: currentColor; fill: none; }
.tab-btn::after { content:''; position:absolute; bottom:0; left:50%; width:0; height:2px; background:var(--blue); transition:width 0.22s cubic-bezier(0.22,1,0.36,1), left 0.22s cubic-bezier(0.22,1,0.36,1); }
.tab-btn.active::after { width:100%; left:0; }
.tab-btn.active { border-bottom-color: transparent; }

.topbar-right {
  display: flex; align-items: center; gap: 12px;
  margin-left: auto; flex-shrink: 0;
}

.badge-live {
  display: flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 999px;
  background: var(--green-soft);
  font-size: 0.76rem; font-weight: 600; color: var(--green);
}
.badge-live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  animation: pulse-d 2s ease-in-out infinite;
}
@keyframes pulse-d { 0%,100%{opacity:1} 50%{opacity:.35} }

/* ═══════════════════════════ PAGE SHELL ═══════════════════════════ */
.page {
  max-width: 1460px; margin: 0 auto;
  padding: 28px 24px 60px;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }
.tab-panel.active > * { animation: fade-up 0.42s cubic-bezier(0.22,1,0.36,1) both; }
.tab-panel.active > *:nth-child(1) { animation-delay: 0.03s; }
.tab-panel.active > *:nth-child(2) { animation-delay: 0.09s; }
.tab-panel.active > *:nth-child(3) { animation-delay: 0.15s; }
.tab-panel.active > *:nth-child(4) { animation-delay: 0.22s; }
.tab-panel.active > *:nth-child(5) { animation-delay: 0.28s; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════ SECTION TITLES ═══════════════════════════ */
.sec-title {
  font-family: var(--serif); font-size: 1.4rem; font-weight: 700;
  letter-spacing: -0.02em; color: var(--ink); margin-bottom: 4px;
}
.sec-sub { font-size: 0.88rem; color: var(--ink-3); max-width: 60ch; line-height: 1.55; }
.sec-head { margin-bottom: 18px; }

/* ═══════════════════════════ CARDS ═══════════════════════════ */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow-sm); }
.card-pad { padding: 20px 22px; }

/* ═══════════════════════════ PILLS ═══════════════════════════ */
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 9px; border-radius: 999px;
  font-size: 0.74rem; font-weight: 500;
  border: 1px solid transparent;
  line-height: 1.4;
  transition: transform 0.15s, box-shadow 0.12s; cursor: default;
}
.pill.v-green { background: var(--green-soft); color: var(--green); border-color: var(--green-med); }
.pill.v-blue  { background: var(--blue-soft);  color: var(--blue);  border-color: var(--blue-med);  }
.pill.v-amber { background: var(--amber-soft); color: var(--amber); border-color: var(--amber-med); }
.pill.v-red   { background: var(--red-soft);   color: var(--red); }
.pill.v-gray  { background: var(--bg-alt);     color: var(--ink-3); border-color: var(--border);    }

/* ═══════════════════════════ TAB: OVERVIEW ═══════════════════════════ */
.hero-banner {
  display: grid; grid-template-columns: 1fr auto;
  gap: 32px; align-items: center;
  padding: 36px 40px;
  border-radius: var(--r-xl);
  background: linear-gradient(135deg, #eef3ff 0%, #f0faf5 50%, #fff8ed 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
  background-size: 200% 200%; animation: hero-drift 14s ease-in-out infinite;
}
@keyframes hero-drift { 0%,100%{background-position:0% 50%} 50%{background-position:100% 50%} }

.hero-eyebrow { font-size: 0.74rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--blue); margin-bottom: 10px; }
.hero-title { font-family: var(--serif); font-size: clamp(2.2rem, 4vw, 3.4rem); font-weight: 700; line-height: 1; letter-spacing: -0.03em; color: var(--ink); margin-bottom: 14px; }
.hero-lede { font-size: 1rem; color: var(--ink-2); line-height: 1.6; max-width: 52ch; }
#overview-summary { margin-top: 10px; font-size: 0.88rem; color: var(--ink-3); }

.hero-side { display: grid; gap: 10px; min-width: 220px; }
.hero-stat-card { padding: 14px 18px; border-radius: var(--r-md); background: rgba(255,255,255,0.85); border: 1px solid var(--border); backdrop-filter: blur(8px); }
.hero-stat-label { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-4); margin-bottom: 4px; }
.hero-stat-val { font-family: var(--serif); font-size: 1.05rem; font-weight: 600; color: var(--ink); line-height: 1.35; }

.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(145px, 1fr)); gap: 10px; margin-bottom: 24px; }
.stat-tile {
  padding: 16px 18px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); box-shadow: var(--shadow-xs);
  position: relative; overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.22,1,0.36,1), box-shadow 0.28s;
}
.stat-tile::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background:linear-gradient(90deg,var(--blue),var(--green)); transform:scaleX(0); transform-origin:left; transition:transform 0.32s cubic-bezier(0.22,1,0.36,1); }
.stat-tile:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,0.06); }
.stat-tile:hover::before { transform:scaleX(1); }
.stat-num { font-family: var(--serif); font-size: 1.9rem; font-weight: 700; line-height: 1; color: var(--ink); margin-bottom: 3px; }
.stat-lab { font-size: 0.78rem; color: var(--ink-3); }

.ov-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(280px, 0.92fr); gap: 18px; margin-bottom: 24px; align-items: start; }

.domain-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(195px, 1fr)); gap: 10px; }
.domain-card {
  display: grid; gap: 6px; align-content: start;
  padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); cursor: pointer;
  text-align: left; width: 100%;
  transition: border-color 0.22s, transform 0.28s cubic-bezier(0.22,1,0.36,1), box-shadow 0.28s, background 0.22s;
}
.domain-card:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,0.06); border-color: var(--border-hi); background: var(--surface-hi); }
.domain-card.active { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.domain-card h3 { font-family: var(--serif); font-size: 0.95rem; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.domain-meta { display: flex; flex-wrap: wrap; gap: 3px 10px; font-size: 0.74rem; color: var(--ink-4); }
.domain-meta b { font-weight: 600; }
.dm-skills b { color: var(--blue); }
.dm-res b { color: var(--green); }
.dm-leaves b { color: var(--amber); }
.dm-cov-c b { color: var(--green); }
.dm-cov-f b { color: var(--amber); }
.dm-cov-t b { color: var(--ink-3); }

.cov-bar { height: 4px; border-radius: 999px; background: var(--bg-alt); overflow: hidden; display: grid; grid-template-columns: var(--c,0%) var(--f,0%) var(--t,0%); }
.cov-bar span { transform-origin: left; animation: bar-grow 0.7s cubic-bezier(0.4,0,0.2,1) both; }
.cov-bar span:nth-child(1) { background: var(--green); animation-delay: 0.1s; }
.cov-bar span:nth-child(2) { background: var(--amber); animation-delay: 0.22s; }
.cov-bar span:nth-child(3) { background: var(--border); animation-delay: 0.32s; }
@keyframes bar-grow { from{transform:scaleX(0)} to{transform:scaleX(1)} }

.legend-row { display: flex; gap: 14px; margin-top: 10px; }
.legend-item { display: flex; align-items: center; gap: 5px; font-size: 0.76rem; color: var(--ink-3); }
.legend-dot { width: 7px; height: 7px; border-radius: 50%; }

.frontier-list { display: grid; gap: 8px; max-height: 520px; overflow-y: auto; padding-right: 4px; }
.frontier-item {
  padding: 10px 14px; border-radius: var(--r-md);
  background: var(--surface-hi); border: 1px solid var(--border);
  transition: border-color 0.2s, transform 0.22s cubic-bezier(0.22,1,0.36,1), background 0.2s;
}
.frontier-item:hover { border-color: var(--amber-med); background: rgba(208,136,25,0.03); transform: translateX(4px); }
.frontier-item strong { display: block; font-size: 0.86rem; color: var(--ink); margin-bottom: 2px; }
.frontier-item small { font-size: 0.76rem; color: var(--ink-3); }

/* ═══════════════════════════ TAB: CATALOG ═══════════════════════════ */
.catalog-controls { display: grid; grid-template-columns: minmax(200px, 1.5fr) repeat(4, minmax(120px, 1fr)); gap: 10px; margin-bottom: 18px; }
.ctrl { display: grid; gap: 4px; }
.ctrl label { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-4); }
.ctrl input, .ctrl select { width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); font-size: 0.88rem; outline: none; transition: border-color 0.15s, box-shadow 0.15s; }
.ctrl input:focus, .ctrl select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.ctrl input::placeholder { color: var(--ink-4); }

.catalog-layout { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr); gap: 18px; align-items: start; }
.skill-list { display: grid; gap: 10px; }
.skill-count-label { font-size: 0.85rem; color: var(--ink-3); margin-bottom: 12px; }

.skill-card {
  padding: 18px 20px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); box-shadow: var(--shadow-xs);
  transition: border-color 0.22s, transform 0.28s cubic-bezier(0.22,1,0.36,1), box-shadow 0.28s;
}
.skill-card:hover { border-color: rgba(59,108,239,0.22); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(59,108,239,0.07), 0 2px 8px rgba(0,0,0,0.04); }
.skill-top { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 10px; }
.skill-card h3 { font-family: var(--serif); font-size: 1.1rem; font-weight: 600; letter-spacing: -0.01em; color: var(--ink); margin-bottom: 6px; cursor: pointer; transition: color 0.15s; }
.skill-card h3:hover { color: var(--blue); }
.skill-card > p { font-size: 0.86rem; color: var(--ink-2); line-height: 1.6; margin-bottom: 12px; }
.skill-meta { display: grid; gap: 5px; margin-bottom: 10px; }
.meta-line { font-size: 0.76rem; color: var(--ink-2); line-height: 1.5; display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; }
.meta-lbl { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; padding: 1px 6px; border-radius: 4px; flex-shrink: 0; }
.meta-lbl-topic { background: var(--blue-soft); color: var(--blue); border: 1px solid var(--blue-med); }
.meta-lbl-tags  { background: var(--green-soft); color: var(--green); border: 1px solid var(--green-med); }
.meta-val { color: var(--ink-3); font-size: 0.76rem; }
.meta-line-stats { gap: 8px; }
.ms-res b   { color: var(--green); }
.ms-files b { color: var(--ink-2); }
.ms-sep { color: var(--ink-4); }
.meta-verified b   { color: var(--green); }
.meta-unverified b { color: var(--ink-4); }

.cmd { display: block; padding: 8px 12px; border-radius: var(--r-sm); background: var(--bg-alt); border: 1px solid var(--border); font-family: var(--mono); font-size: 0.76rem; color: var(--green); overflow-x: auto; white-space: pre-wrap; word-break: break-word; margin-bottom: 10px; }

.skill-links { display: flex; flex-wrap: wrap; gap: 6px; font-size: 0.78rem; }
.skill-links .sep { display: none; }
.sd-link {
  background: var(--surface-hi); border: 1px solid var(--border); border-radius: 6px;
  padding: 3px 10px; font-size: 0.75rem; font-weight: 500;
  color: var(--blue); cursor: pointer;
  transition: background 0.18s, border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}
.sd-link:hover { background: var(--blue-soft); border-color: var(--blue-med); transform: translateY(-1px); box-shadow: 0 2px 8px rgba(59,108,239,0.1); text-decoration: none; }

.tree-shell { display: grid; gap: 12px; }
.tree-domain { padding: 14px 16px; background: var(--surface-hi); border: 1px solid var(--border); border-radius: var(--r-lg); }
.tree-domain h3 { font-family: var(--serif); font-size: 0.98rem; font-weight: 600; color: var(--ink); margin-bottom: 3px; }
.tree-domain > p { font-size: 0.76rem; color: var(--ink-4); margin-bottom: 10px; }
.leaf-list { display: grid; gap: 6px; }
.leaf-card { padding: 10px 12px; border-radius: var(--r-md); background: var(--surface); border: 1px solid var(--border); transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s; }
.leaf-card:hover { transform: translateX(3px); box-shadow: var(--shadow-xs); }
.leaf-card[data-status="covered"]  { border-left: 3px solid var(--green); }
.leaf-card[data-status="frontier"] { border-left: 3px solid var(--amber); }
.leaf-card[data-status="todo"]     { border-left: 3px solid var(--border-hi); }
.leaf-card h4 { font-size: 0.84rem; font-weight: 600; color: var(--ink); margin-bottom: 2px; }
.leaf-card p { font-size: 0.74rem; color: var(--ink-4); margin-bottom: 5px; }
.leaf-links { display: flex; flex-wrap: wrap; gap: 3px 8px; font-size: 0.74rem; }
.leaf-links .muted { color: var(--ink-4); }

/* ═══════════════════════════ TAB: TAXONOMY (RADIAL) ═══════════════════════════ */
.sec-head-tax { margin-bottom: 14px; }
.viz-panel { position: relative; overflow: hidden; border-radius: var(--r-xl); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-md); }
.viz-panel-full { /* full-width, no sidebar */ }
.viz-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface-hi); }
.viz-toolbar input { flex: 1; min-width: 160px; max-width: 260px; padding: 7px 12px; border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); font-size: 0.86rem; outline: none; }
.viz-toolbar input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-soft); }
.viz-toolbar input::placeholder { color: var(--ink-4); }
.viz-btn { padding: 7px 14px; border-radius: var(--r-sm); border: 1px solid var(--border); background: var(--surface); color: var(--ink-2); cursor: pointer; font-size: 0.82rem; font-weight: 500; transition: background 0.15s, border-color 0.15s; }
.viz-btn:hover { background: var(--bg-alt); border-color: var(--border-hi); }

.tax-toolbar-stats { margin-left: auto; font-size: 0.82rem; color: var(--ink-3); white-space: nowrap; }
.tax-toolbar-stats span { font-weight: 700; color: var(--blue); }

.tax-toolbar-legend { display: flex; gap: 12px; margin-left: 8px; }
.tl-item { display: flex; align-items: center; gap: 5px; font-size: 0.76rem; color: var(--ink-3); }
.tl-item i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }

.viz-canvas { position: relative; min-height: 82vh; background: var(--surface); cursor: grab; }
.viz-canvas.dragging { cursor: grabbing; }
.viz-canvas svg { display: block; width: 100%; height: min(86vh, 1080px); background: transparent; }

/* ── Floating info overlay ── */
.tax-info-float {
  position: absolute; top: 16px; right: 16px; z-index: 10;
  width: 250px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 16px;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}
.tax-info-float-title { font-family: var(--serif); font-size: 0.95rem; font-weight: 600; color: var(--ink); margin-bottom: 5px; line-height: 1.3; }
.tax-info-float-body { font-size: 0.8rem; color: var(--ink-2); line-height: 1.5; margin-bottom: 8px; }
.tax-info-float-pills { display: flex; flex-wrap: wrap; gap: 4px; }

/* ── How-to hint bar ── */
.tax-howto {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  padding: 5px 14px; border-radius: 999px;
  background: rgba(255,255,255,0.88); backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  font-size: 0.72rem; color: var(--ink-4);
  pointer-events: none; white-space: nowrap;
}

#viewport { will-change: transform; }
.edge { fill: none; stroke-linecap: round; stroke-opacity: 0.32; transition: opacity 180ms, stroke-width 180ms; }
.edge.domain-edge { stroke-width: 3.2; }
.edge.sub-edge { stroke-width: 1.6; stroke-opacity: 0.22; }
.node-core, .label-group rect, .label-group text { transition: opacity 180ms, fill 180ms, stroke 180ms; }
.root-glow { fill: rgba(59,108,239,0.08); filter: blur(24px); }
.root-node { fill: var(--ink); stroke: var(--border); stroke-width: 2; }
.root-label { fill: #fff; font-family: var(--serif); font-size: 44px; font-weight: 700; letter-spacing: -0.03em; text-anchor: middle; dominant-baseline: middle; }
.root-sub { fill: rgba(255,255,255,0.6); font-size: 16px; text-anchor: middle; }
.domain-dot { stroke: var(--surface); stroke-width: 2.5; }
.sub-dot { fill: currentColor; opacity: 0.85; }
.label-group text { font-family: var(--sans); font-size: 16px; dominant-baseline: middle; paint-order: stroke; stroke: rgba(255,255,255,0.15); stroke-width: 0.3; }
.label-group.domain text { font-family: var(--serif); font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.label-group rect { filter: drop-shadow(0 4px 12px rgba(0,0,0,0.06)); }
.has-focus .fadable { opacity: 0.1; }
.has-focus .edge.fadable { opacity: 0.08; }
.has-focus .is-active { opacity: 1 !important; }
.has-focus .edge.is-active { stroke-opacity: 0.9; stroke-width: 4; }
.has-focus .edge.sub-edge.is-active { stroke-width: 2.4; }
.match-dim .searchable { opacity: 0.1; }
.match-dim .is-match { opacity: 1 !important; }

.tax-sidebar { display: grid; gap: 12px; align-content: start; }
.info-card { padding: 16px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow-xs); transition: border-color 0.22s, box-shadow 0.22s; }
.info-card:hover { border-color: var(--border-hi); box-shadow: var(--shadow-sm); }
.info-card h2 { font-family: var(--serif); font-size: 1.05rem; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.info-card p, .info-card li { font-size: 0.84rem; color: var(--ink-2); line-height: 1.55; }
.info-card ul { list-style: none; display: grid; gap: 5px; }
.info-card ul li::before { content: "·"; margin-right: 6px; color: var(--ink-4); font-weight: 700; }
.tax-stat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tax-stat { padding: 12px 14px; background: var(--bg-alt); border-radius: var(--r-md); text-align: center; }
.tax-stat strong { display: block; font-family: var(--serif); font-size: 1.5rem; font-weight: 700; color: var(--ink); }
.tax-stat span { font-size: 0.74rem; color: var(--ink-3); }
.legend-col { display: grid; gap: 6px; }
.legend-swatch { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--ink-2); }
.legend-swatch i { width: 12px; height: 12px; border-radius: 50%; display: inline-block; border: 1px solid var(--border); }

.empty { padding: 18px; border-radius: var(--r-md); background: var(--surface-hi); border: 1px solid var(--border); font-size: 0.86rem; color: var(--ink-3); line-height: 1.6; }

/* ═══════════════════════════ SKILL DETAIL DRAWER ═══════════════════════════ */
.sd-overlay { position: fixed; inset: 0; z-index: 200; background: rgba(26,30,46,0.32); backdrop-filter: blur(2px); opacity: 0; pointer-events: none; transition: opacity 0.22s ease; }
.sd-overlay.open { opacity: 1; pointer-events: auto; }
.sd-drawer { position: fixed; top: 0; right: 0; bottom: 0; z-index: 201; width: min(740px, 100vw); background: var(--surface); border-left: 1px solid var(--border); box-shadow: -8px 0 48px rgba(0,0,0,0.10); display: flex; flex-direction: column; transform: translateX(100%); transition: transform 0.34s cubic-bezier(0.32,0.72,0,1); overflow: hidden; }
.sd-drawer.open { transform: translateX(0); }
.sd-header { display: flex; align-items: flex-start; gap: 14px; padding: 22px 24px 18px; border-bottom: 1px solid var(--border); background: var(--surface-hi); flex-shrink: 0; }
.sd-header-info { flex: 1; min-width: 0; }
.sd-header-pills { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.sd-title { font-family: var(--serif); font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sd-close { flex-shrink: 0; width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface); cursor: pointer; color: var(--ink-3); transition: background 0.15s, color 0.15s; margin-top: 2px; }
.sd-close:hover { background: var(--bg-alt); color: var(--ink); }
.sd-close svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; }
.sd-download { flex-shrink: 0; height: 34px; padding: 0 14px; display: flex; align-items: center; gap: 6px; border: 1px solid var(--blue); border-radius: var(--r-sm); background: var(--blue); cursor: pointer; color: #fff; font-size: 0.8rem; font-weight: 600; font-family: var(--sans); transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s; margin-top: 2px; white-space: nowrap; box-shadow: 0 1px 4px rgba(59,108,239,0.25); }
.sd-download:hover { background: #2b5ad9; border-color: #2b5ad9; box-shadow: 0 2px 8px rgba(59,108,239,0.35); }
.sd-download svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 2; fill: none; flex-shrink: 0; }
.sd-download.busy { opacity: 0.6; cursor: wait; }
.sd-feedback { flex-shrink: 0; height: 34px; padding: 0 14px; display: flex; align-items: center; gap: 6px; border: 1px solid var(--amber); border-radius: var(--r-sm); background: var(--amber); cursor: pointer; color: #fff; font-size: 0.8rem; font-weight: 600; font-family: var(--sans); text-decoration: none; transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s; margin-top: 2px; white-space: nowrap; box-shadow: 0 1px 4px rgba(208,136,25,0.25); }
.sd-feedback:hover { background: #b3710e; border-color: #b3710e; box-shadow: 0 2px 8px rgba(208,136,25,0.35); }
.sd-feedback svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 2; fill: none; flex-shrink: 0; }
.sd-tabs { display: flex; flex-shrink: 0; position: relative; border-bottom: 1px solid var(--border); background: var(--surface); overflow-x: auto; scrollbar-width: none; }
.sd-tabs::-webkit-scrollbar { display: none; }
.sd-tab { padding: 0 22px; height: 44px; font-size: 0.84rem; font-weight: 500; color: var(--ink-3); border: none; background: none; cursor: pointer; border-bottom: 2px solid transparent; transition: color 0.18s; white-space: nowrap; }
.sd-tab:hover { color: var(--ink); }
.sd-tab.active { color: var(--blue); border-bottom-color: transparent; }
.sd-tab-indicator { position: absolute; bottom: 0; height: 2px; background: var(--blue); border-radius: 1px; transition: left 0.28s cubic-bezier(0.22,1,0.36,1), width 0.28s cubic-bezier(0.22,1,0.36,1); pointer-events: none; }
.sd-body { flex: 1; overflow-y: auto; padding: 26px 28px 40px; }
@keyframes sd-content-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.sd-body > * { animation: sd-content-in 0.3s cubic-bezier(0.22,1,0.36,1) both; }

.sd-md h1 { font-family: var(--serif); font-size: 1.3rem; font-weight: 700; color: var(--ink); margin: 0 0 16px; letter-spacing: -0.02em; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.sd-md h2 { font-family: var(--serif); font-size: 1.05rem; font-weight: 600; color: var(--ink); margin: 28px 0 12px; padding-bottom: 8px; position: relative; }
.sd-md h2::after { content:''; position:absolute; bottom:0; left:0; width:28px; height:2px; background:var(--blue); border-radius:1px; }
.sd-md h3 { font-size: 0.95rem; font-weight: 600; color: var(--ink-2); margin: 20px 0 8px; }
.sd-md p { font-size: 0.88rem; color: var(--ink-2); line-height: 1.75; margin-bottom: 10px; }
.sd-md ul, .sd-md ol { padding-left: 22px; margin-bottom: 12px; }
.sd-md li { font-size: 0.88rem; color: var(--ink-2); line-height: 1.7; margin-bottom: 4px; }
.sd-md li::marker { color: var(--ink-4); }
.sd-md code { font-family: var(--mono); font-size: 0.77rem; padding: 1px 6px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 4px; color: var(--green); }
.sd-md pre { background: #f2f4f8; border: 1px solid var(--border); border-radius: var(--r-md); padding: 14px 16px; overflow-x: auto; margin-bottom: 14px; position: relative; }
.sd-md pre::after { content:'code'; position:absolute; top:8px; right:10px; font-family:var(--mono); font-size:0.6rem; font-weight:500; letter-spacing:0.08em; text-transform:uppercase; color:var(--ink-4); opacity:0.5; }
.sd-md pre code { background: none; border: none; padding: 0; font-size: 0.78rem; color: var(--ink-2); }
.sd-md a { color: var(--blue); transition: color 0.15s; }
.sd-md a:hover { text-decoration: underline; color: #2a54c7; }
.sd-md hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }
.sd-md strong { font-weight: 600; color: var(--ink); }
.sd-md em { font-style: italic; }
.sd-md blockquote { border-left: 3px solid var(--blue-med); padding: 10px 14px; margin-bottom: 12px; color: var(--ink-3); background: var(--blue-soft); border-radius: 0 var(--r-sm) var(--r-sm) 0; }

.sd-meta-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.sd-meta-table tr { border-bottom: 1px solid var(--border); }
.sd-meta-table tr:last-child { border-bottom: none; }
.sd-meta-table th { text-align: left; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-4); padding: 11px 14px 11px 0; width: 34%; vertical-align: top; }
.sd-meta-table td { padding: 11px 0; color: var(--ink-2); line-height: 1.55; vertical-align: top; }
.sd-meta-val-mono { font-family: var(--mono); font-size: 0.76rem; color: var(--green); }
.sd-meta-pill-row { display: flex; flex-wrap: wrap; gap: 4px; }

.sd-link { background: none; border: none; padding: 0; font: inherit; font-size: inherit; color: var(--blue); cursor: pointer; }
.sd-link:hover { text-decoration: underline; }
.sd-section-label { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: var(--ink-4); margin-bottom: 8px; }
.sd-cmd { display: block; padding: 10px 14px; border-radius: var(--r-sm); background: var(--bg-alt); border: 1px solid var(--border); font-family: var(--mono); font-size: 0.76rem; color: var(--green); overflow-x: auto; white-space: pre-wrap; word-break: break-word; margin-bottom: 8px; }
.sd-empty { font-size: 0.88rem; color: var(--ink-4); font-style: italic; padding: 24px 0; }

/* ═══════════════════════════ TAB: PAPER / PROJECT PAGE ═══════════════════════════ */
.paper-wrap {
  max-width: 860px; margin: 0 auto;
}

.paper-hero {
  text-align: center;
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.paper-venue-badge {
  display: inline-block;
  padding: 3px 12px; border-radius: 999px;
  background: linear-gradient(135deg, var(--blue-soft), var(--green-soft));
  border: 1px solid var(--blue-med);
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--blue);
  margin-bottom: 20px;
}

.paper-title {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 700; line-height: 1.22;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 760px; margin: 0 auto 28px;
}

.paper-author-list {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 4px 20px;
  font-size: 0.97rem; font-weight: 500; color: var(--ink-2);
  margin-bottom: 10px;
}
.paper-author-list a { color: var(--ink-2); font-weight: 500; }
.paper-author-list a:hover { color: var(--blue); text-decoration: none; }
.paper-author-list sup { font-size: 0.65rem; color: var(--ink-4); }

.paper-affil {
  font-size: 0.84rem; color: var(--ink-3); margin-bottom: 6px;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px;
}
.paper-affil-item { display: flex; align-items: center; gap: 5px; }
.paper-affil-icon { width: 16px; height: 16px; opacity: 0.6; }

.paper-eq-note {
  font-size: 0.78rem; color: var(--ink-4);
  margin-bottom: 28px;
}
.paper-eq-note sup { font-size: 0.65rem; }

.paper-btns {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;
  margin-top: 8px;
}

.paper-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 18px; border-radius: var(--r-md);
  font-size: 0.86rem; font-weight: 600;
  border: 1.5px solid var(--border);
  background: var(--surface); color: var(--ink-2);
  cursor: pointer; text-decoration: none;
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow-xs);
}
.paper-btn:hover { background: var(--bg-alt); border-color: var(--border-hi); color: var(--ink); transform: translateY(-1px); box-shadow: var(--shadow-sm); text-decoration: none; }
.paper-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.8; flex-shrink: 0; }
.paper-btn.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.paper-btn.btn-primary:hover { background: #2a54c7; border-color: #2a54c7; color: #fff; }
.paper-btn.btn-gh { background: var(--ink); border-color: var(--ink); color: #fff; }
.paper-btn.btn-gh:hover { background: var(--ink-2); border-color: var(--ink-2); color: #fff; }

/* Ongoing project notice */
.paper-ongoing-notice {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 18px;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(208,136,25,0.07), rgba(59,108,239,0.05));
  border: 1.5px solid var(--amber-med);
  margin-bottom: 36px;
}
.paper-ongoing-notice svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--amber); stroke: currentColor; fill: none; stroke-width: 2; margin-top: 1px; }
.paper-ongoing-notice p { font-size: 0.88rem; color: var(--ink-2); line-height: 1.55; }
.paper-ongoing-notice strong { color: var(--amber); }

/* Section layout */
.paper-section {
  margin-bottom: 44px;
}

.paper-section-title {
  font-family: var(--serif);
  font-size: 1.25rem; font-weight: 700;
  letter-spacing: -0.02em; color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.paper-section-title::after {
  content: '';
  position: absolute; bottom: -1px; left: 0;
  width: 40px; height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--green));
  border-radius: 1px;
}

/* Abstract */
.paper-abstract {
  font-family: var(--serif);
  font-size: 1rem; line-height: 1.75;
  color: var(--ink-2);
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-xs);
  border-left: 3px solid var(--blue);
}

/* Figures */
.paper-figure-full {
  display: block; margin: 0;
}
.paper-figure-full img {
  width: 100%; display: block;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.paper-figure-full figcaption {
  margin-top: 10px;
  font-size: 0.82rem; color: var(--ink-3); line-height: 1.5;
  text-align: center;
}
.paper-figure-sm {
  max-width: 560px; margin-left: auto; margin-right: auto;
}
/* Float figure alongside text */
.paper-figure-float {
  float: right; margin: 4px 0 16px 24px; width: 280px; clear: right;
}
.paper-figure-float img {
  width: 100%; display: block;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.paper-figure-float figcaption {
  margin-top: 7px;
  font-size: 0.76rem; color: var(--ink-3); line-height: 1.45;
  text-align: center;
}
.paper-exp-body { overflow: hidden; } /* clearfix for float */

/* MoSciBench results table */
.paper-results-table {
  width: 100%; border-collapse: collapse; margin-top: 16px;
  font-size: 0.82rem;
}
.paper-results-table th {
  background: var(--surface-alt, #f5f5f7);
  color: var(--ink-2); font-weight: 600;
  padding: 8px 10px; border: 1px solid var(--border);
  text-align: center; white-space: nowrap;
}
.paper-results-table th.col-group {
  background: var(--blue-soft); color: var(--blue);
  font-size: 0.8rem; letter-spacing: 0.02em;
}
.paper-results-table td {
  padding: 7px 10px; border: 1px solid var(--border);
  text-align: center; color: var(--ink);
}
.paper-results-table tr.row-base td { color: var(--ink-3); }
.paper-results-table tr.row-ours td { font-weight: 600; }
.paper-results-table td.setting { text-align: left; font-weight: 500; white-space: nowrap; }
.paper-results-table .gain { color: var(--green); font-size: 0.75rem; }
.paper-results-table .unchanged { color: var(--ink-4, #aaa); }
.paper-results-table-wrap {
  overflow-x: auto; margin-top: 16px;
  border-radius: var(--r-md); border: 1px solid var(--border);
}
.paper-results-table-wrap .paper-results-table {
  margin-top: 0;
}
.paper-results-table-caption {
  margin-top: 10px; font-size: 0.8rem; color: var(--ink-3);
  line-height: 1.5; text-align: center;
}

.paper-figures-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.paper-figures-row figure { margin: 0; }
.paper-figures-row figure img { width: 100%; border-radius: var(--r-md); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.paper-figures-row figcaption { margin-top: 8px; font-size: 0.78rem; color: var(--ink-3); line-height: 1.45; text-align: center; }

/* Key highlights */
.paper-highlights {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.paper-highlight {
  padding: 20px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); box-shadow: var(--shadow-xs);
  text-align: center;
  position: relative; overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.22,1,0.36,1), box-shadow 0.28s;
}
.paper-highlight::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--green));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.32s cubic-bezier(0.22,1,0.36,1);
}
.paper-highlight:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0,0,0,0.07); }
.paper-highlight:hover::before { transform: scaleX(1); }
.ph-num { display: block; font-family: var(--serif); font-size: 2rem; font-weight: 700; letter-spacing: -0.03em; color: var(--blue); margin-bottom: 4px; line-height: 1; }
.ph-lab { display: block; font-size: 0.78rem; color: var(--ink-3); }

/* Method pipeline */
.paper-method {
  display: grid; gap: 10px;
}
.paper-step {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 16px 18px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); box-shadow: var(--shadow-xs);
  transition: border-color 0.2s, transform 0.22s cubic-bezier(0.22,1,0.36,1), box-shadow 0.2s;
}
.paper-step:hover { border-color: var(--blue-med); transform: translateX(4px); box-shadow: var(--shadow-sm); }
.paper-step-num {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), #5b8af8);
  color: #fff;
  font-size: 0.78rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}
.paper-step-content { flex: 1; }
.paper-step-content h4 { font-family: var(--serif); font-size: 0.95rem; font-weight: 600; color: var(--ink); margin-bottom: 3px; }
.paper-step-content p { font-size: 0.84rem; color: var(--ink-3); line-height: 1.55; margin: 0; }

/* Experiment blocks (stacked) */
.paper-exp-block {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.paper-exp-block:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.paper-exp-title {
  font-family: var(--serif); font-size: 1.05rem; font-weight: 600;
  color: var(--ink); margin-bottom: 8px; letter-spacing: -0.01em;
}
.paper-exp-desc {
  font-size: 0.88rem; color: var(--ink-3); line-height: 1.65;
  margin-bottom: 16px;
}

/* Citation pending */
.paper-citation-pending {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-xs);
}
.paper-citation-pending svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--ink-4); margin-top: 1px; }
.paper-citation-pending-title { font-weight: 600; color: var(--ink-2); font-size: 0.92rem; margin-bottom: 4px; }
.paper-citation-pending-body { font-size: 0.84rem; color: var(--ink-3); line-height: 1.55; }

/* ═══════════════════════════ RESPONSIVE ═══════════════════════════ */
@media (max-width: 1120px) {
  .hero-banner { grid-template-columns: 1fr; }
  .hero-side { grid-template-columns: repeat(3, 1fr); }
  .ov-grid, .catalog-layout, .tax-grid { grid-template-columns: 1fr; }
  .viz-canvas svg { height: min(60vh, 700px); }
  .viz-canvas { min-height: 60vh; }
}

@media (max-width: 900px) {
  .catalog-controls { grid-template-columns: 1fr 1fr; }
  .catalog-controls .ctrl:first-child { grid-column: 1 / -1; }
  .domain-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .paper-highlights { grid-template-columns: repeat(2, 1fr); }
  .paper-figures-row { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .page { padding: 14px 12px 36px; }
  .hero-banner { padding: 22px 20px; gap: 20px; }
  .hero-title { font-size: 2rem; }
  .hero-side { grid-template-columns: 1fr 1fr; }
  .tab-btn span { display: none; }
  .tab-btn { padding: 0 14px; }
  .logo-text { display: none; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .domain-grid { grid-template-columns: repeat(2, 1fr); }
  .catalog-controls { grid-template-columns: 1fr 1fr; }
  .catalog-controls .ctrl:first-child { grid-column: 1 / -1; }
  .sec-title { font-size: 1.2rem; }
  .viz-canvas svg { height: 55vh; }
  .viz-canvas { min-height: 55vh; }
  .sd-drawer { width: 100vw; }
  .sd-body { padding: 18px 16px 32px; }
  .sd-header { padding: 16px 16px 14px; }
  .sd-title { font-size: 1.15rem; }
  .paper-highlights { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .page { padding: 12px 10px 28px; }
  .hero-banner { padding: 18px; }
  .hero-side { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .domain-grid { grid-template-columns: 1fr 1fr; }
  .catalog-controls { grid-template-columns: 1fr; }
  .catalog-controls .ctrl:first-child { grid-column: auto; }
  .tax-stat-row { grid-template-columns: 1fr 1fr; }
  .viz-canvas svg { height: 50vh; }
  .viz-toolbar { flex-wrap: wrap; gap: 8px; }
  .paper-title { font-size: 1.4rem; }
  .paper-highlights { grid-template-columns: repeat(2, 1fr); }
  .ph-num { font-size: 1.5rem; }
}