/* ============================================================
   Research Visualized — chart-specific styles
   Site chrome (nav, footer, body, container) lives in styles.css
   ============================================================ */

/* Token fallbacks for vars the viz files use but styles.css doesn't define */
:root {
  --accent-light:   #3b7cb8;
  --accent-subtle:  rgba(30, 77, 123, 0.10);
  --accent-tint:    rgba(30, 77, 123, 0.08);
  --shadow-card:    0 1px 4px rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.05);
}

/* ---------- Page header ---------- */
.eyebrow { display: block; margin-bottom: 1rem; }
.page-title {
  margin: 0 0 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
  position: relative;
}
.page-title::before { content: ''; position: absolute; bottom: -2px; left: 0; width: 60px; height: 2px; background: var(--accent); }
.page-lead { max-width: 60ch; margin: 0 0 0.5rem; }
.page-lead a { color: var(--accent-hover); text-decoration: underline; text-decoration-color: rgba(29,78,216,0.30); text-underline-offset: 3px; }

/* ---------- Stat banner ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  background: var(--bg-card);
  margin: 2.5rem 0 1rem;
  box-shadow: var(--shadow-card);
}
.stat { padding: 1.5rem 1.25rem; border-right: 1px solid var(--border); }
.stat:last-child { border-right: none; }
.stat-num { font-family: var(--font-serif); font-size: clamp(2rem, 3.5vw, 2.9rem); font-weight: 600; line-height: 1; color: var(--accent); letter-spacing: -0.02em; }
.stat-num .suffix { font-size: 0.5em; color: var(--accent-light); margin-left: 1px; }
.stat-label { margin-top: 0.5rem; font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; line-height: 1.3; }

/* ---------- Viz section scaffold ---------- */
.viz-section { margin-top: 4.5rem; }
.viz-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 0.4rem; }
.viz-title { font-family: var(--font-serif); font-size: clamp(1.6rem, 2.6vw, 2.1rem); font-weight: 600; letter-spacing: -0.02em; margin: 0; color: var(--text-primary); }
.viz-kicker { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin: 0 0 0.4rem; font-weight: 600; }
.viz-desc { max-width: 64ch; margin: 0.5rem 0 1.5rem; color: var(--text-secondary); font-size: 0.97rem; }
.viz-desc em { color: var(--text-primary); }

/* segmented "take" switcher */
.takes { display: inline-flex; border: 1px solid var(--border); background: var(--bg-card); flex-shrink: 0; }
.take-btn {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em;
  padding: 0.45rem 0.85rem; background: none; border: none; cursor: pointer;
  color: var(--text-muted); border-right: 1px solid var(--border); transition: all var(--transition-fast);
  text-transform: uppercase; white-space: nowrap;
}
.take-btn:last-child { border-right: none; }
.take-btn:hover { background: var(--accent-tint); color: var(--accent); }
.take-btn.active { background: var(--accent); color: #fff; }

/* viz card */
.viz-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  padding: 1.75rem 1.75rem 1.5rem;
  position: relative;
}

/* legend */
.legend { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; margin-top: 1.25rem; padding-top: 1.1rem; border-top: 1px solid var(--border); }
.legend-item { display: inline-flex; align-items: center; gap: 0.45rem; font-size: 0.8rem; color: var(--text-secondary); cursor: pointer; transition: opacity var(--transition-fast); user-select: none; }
.legend-item.dim { opacity: 0.32; }
.legend-swatch { width: 12px; height: 12px; flex-shrink: 0; border-radius: 2px; }
.legend-count { color: var(--text-muted); font-family: var(--font-mono); font-size: 0.72rem; }
.legend-hint { font-size: 0.72rem; color: var(--text-muted); font-style: italic; margin-left: auto; align-self: center; }

/* svg base */
.viz-svg { display: block; width: 100%; height: auto; overflow: visible; }
.viz-svg text { font-family: var(--font-sans); }
.axis-label { font-size: 11px; fill: var(--text-muted); font-family: var(--font-mono); letter-spacing: 0.03em; }
.axis-line { stroke: var(--border); stroke-width: 1; }
.grid-line { stroke: var(--border); stroke-width: 1; stroke-dasharray: 2 4; opacity: 0.7; }

.bar-seg, .dot-cell, .topic-bubble, .venue-bar, .geo-bubble, .stream-path, .matrix-cell { cursor: pointer; transition: opacity var(--transition-fast); }
.bar-seg:hover, .venue-bar:hover, .matrix-cell:hover { opacity: 0.78; }
.fade-out { opacity: 0.12 !important; }

/* named single-appearance venues (replaces the old anonymous "+N" bucket) */
.venue-chips { margin-top: 1.25rem; padding-top: 1.1rem; border-top: 1px solid var(--border); }
.venue-chips-head { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.75rem; }
.venue-chips-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.venue-chip {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: var(--font-sans); font-size: 0.8rem; color: var(--text-secondary);
  background: var(--bg-secondary); border: 1px solid var(--border);
  padding: 0.32rem 0.65rem; cursor: pointer; text-decoration: none;
  transition: all var(--transition-fast);
}
.venue-chip:hover { background: var(--accent-tint); border-color: rgba(29,78,216,0.30); color: var(--accent); transform: translateY(-1px); }
.venue-chip-dot { width: 9px; height: 9px; border-radius: 2px; flex-shrink: 0; }

/* ---------- Trajectory: pipeline take ---------- */
.tj-pipeline { display: flex; flex-direction: column; gap: 1.6rem; padding-top: 0.25rem; }
.tj-stage { }
.tj-stage-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 0.7rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border); }
.tj-stage-id { display: flex; align-items: baseline; gap: 0.6rem; }
.tj-stage-num { font-family: var(--font-serif); font-size: 1.6rem; font-weight: 600; color: var(--accent); line-height: 1; }
.tj-stage-label { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); }
.tj-stage-view { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-muted); background: none; border: none; cursor: pointer; padding: 0.2rem 0; transition: color var(--transition-fast); }
.tj-stage-view:hover { color: var(--accent); }
.tj-squares { display: flex; flex-wrap: wrap; gap: 6px; }
.tj-sq {
  width: 19px; height: 19px; border: 1.5px dashed; border-radius: 2px;
  cursor: pointer; padding: 0; display: block; transition: transform var(--transition-fast), filter var(--transition-fast);
}
.tj-sq:hover { transform: translateY(-2px) scale(1.12); filter: saturate(1.3); }

@media (max-width: 560px) {
  .tj-sq { width: 16px; height: 16px; }
  .tj-stage-num { font-size: 1.3rem; }
}

.year-tick { font-size: 12px; fill: var(--text-secondary); font-family: var(--font-mono); }
.count-tag { font-size: 12px; fill: var(--text-primary); font-weight: 600; font-family: var(--font-mono); }

/* ---------- Tooltip ---------- */
.cc-tooltip {
  position: fixed; z-index: 5000; pointer-events: none;
  background: var(--text-primary); color: #fff;
  padding: 0.6rem 0.8rem; max-width: 290px;
  font-size: 0.8rem; line-height: 1.45;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
  opacity: 0; transform: translateY(4px); transition: opacity 0.12s, transform 0.12s;
}
.cc-tooltip.show { opacity: 1; transform: translateY(0); }
.cc-tooltip .tt-title { font-family: var(--font-serif); font-size: 0.95rem; font-weight: 600; margin-bottom: 0.2rem; display: block; }
.cc-tooltip .tt-meta { color: rgba(255,255,255,0.7); font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.03em; }
.cc-tooltip .tt-row { display: flex; align-items: center; gap: 0.4rem; }
.cc-tooltip .tt-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.cc-tooltip .tt-hint { margin-top: 0.35rem; color: rgba(255,255,255,0.55); font-size: 0.68rem; font-style: italic; }

/* ---------- Drill-in modal ---------- */
.cc-modal-scrim {
  position: fixed; inset: 0; z-index: 4000;
  background: rgba(17,17,24,0.45);
  -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 6vh 1.5rem 3rem; opacity: 0; pointer-events: none;
  transition: opacity 0.22s ease;
}
.cc-modal-scrim.show { opacity: 1; pointer-events: auto; }
.cc-modal {
  background: var(--bg-card); width: min(720px, 100%); max-height: 84vh; overflow: hidden;
  border: 1px solid var(--border); box-shadow: 0 20px 70px rgba(0,0,0,0.30);
  transform: translateY(12px); transition: transform 0.22s ease; display: flex; flex-direction: column;
}
.cc-modal-scrim.show .cc-modal { transform: translateY(0); }
.cc-modal-head { padding: 1.5rem 1.75rem 1.25rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.cc-modal-head .m-kicker { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); margin: 0 0 0.35rem; font-weight: 600; }
.cc-modal-head h3 { font-family: var(--font-serif); font-size: 1.4rem; font-weight: 600; margin: 0; letter-spacing: -0.01em; }
.cc-modal-close { background: none; border: 1px solid var(--border); width: 34px; height: 34px; cursor: pointer; color: var(--text-secondary); font-size: 1.1rem; line-height: 1; flex-shrink: 0; transition: all var(--transition-fast); }
.cc-modal-close:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.cc-modal-body { overflow-y: auto; padding: 0.5rem 0; }
.pub-row { padding: 0.95rem 1.75rem; border-bottom: 1px solid var(--border); display: block; text-decoration: none; transition: background var(--transition-fast); }
.pub-row:last-child { border-bottom: none; }
.pub-row:hover { background: var(--accent-tint); }
.pub-row .pr-title { font-family: var(--font-serif); font-size: 1.02rem; color: var(--text-primary); line-height: 1.35; }
.pub-row .pr-meta { margin-top: 0.3rem; font-size: 0.8rem; color: var(--text-muted); display: flex; flex-wrap: wrap; gap: 0.3rem 0.8rem; align-items: center; }
.pub-row .pr-venue { font-style: italic; color: var(--text-secondary); }
.pub-row .pr-year { font-family: var(--font-mono); font-size: 0.72rem; }
.pub-row .pr-dot { width: 8px; height: 8px; border-radius: 50%; }
.pub-row .pr-arrow { color: var(--accent); opacity: 0; transition: opacity var(--transition-fast); }
.pub-row:hover .pr-arrow { opacity: 1; }
.pub-row--pipeline .pr-title { color: var(--text-secondary); }
.pr-badge { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.05em; text-transform: uppercase; font-weight: 600; padding: 0.12rem 0.4rem; border: 1px solid currentColor; border-radius: 0; line-height: 1.3; white-space: nowrap; }
.pr-badge--dashed { border-style: dashed; }

/* ---------- Geo map ---------- */
.geo-wrap { position: relative; }
.geo-graticule { stroke: var(--border); stroke-width: 1; fill: none; opacity: 0.55; }
.geo-land { fill: rgba(29,78,216,0.05); stroke: rgba(29,78,216,0.18); stroke-width: 1; }
.geo-arc { fill: none; stroke: var(--accent); stroke-width: 1.2; opacity: 0.28; stroke-dasharray: 3 4; }
.geo-label { font-family: var(--font-mono); font-size: 10px; fill: var(--text-muted); letter-spacing: 0.04em; }
.geo-cluster-label { font-family: var(--font-mono); font-size: 10px; fill: var(--accent); letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.7; }
.geo-note { margin-top: 1.1rem; padding-top: 1rem; border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-muted); }
.geo-note strong { color: var(--accent); font-family: var(--font-mono); font-size: 0.95rem; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2n) { border-right: none; }
  .stat { border-bottom: 1px solid var(--border); }
}
@media (max-width: 560px) {
  .viz-card { padding: 1.1rem 0.9rem; }
  .stats { grid-template-columns: 1fr 1fr; }
}

/* reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.05ms !important; }
}