/* attention.sh — knowledge base.
   Layered on top of story.css: long-form paper read-throughs with
   zoomable figures. Shares the decoder's figure conventions. */

body { overflow-x: hidden; }

.page {
  max-width: 860px;
  margin: 0 auto;
  padding: 6.5rem 1.25rem 4rem;
}

.page-head h1 { font-size: 2.2rem; margin: 0.3rem 0 0.9rem; }
.page-head .lede { color: var(--text-dim); font-size: 1.08rem; max-width: 44rem; }
.page-head .lede em { color: var(--text); font-style: italic; }

.mode-line { font-family: var(--mono); font-size: 0.85rem; margin: 1.2rem 0 0; }
.mode-line a { color: var(--link); text-decoration: none; border-bottom: 1px dotted var(--border); }
.mode-line a:hover { color: var(--accent); }

/* paper metadata block */
.paper-meta {
  margin: 1.8rem 0 0;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: rgba(16, 21, 28, 0.6);
  padding: 1rem 1.2rem;
  font-size: 0.9rem;
}
.paper-meta div { display: flex; gap: 0.9rem; padding: 0.22rem 0; color: var(--text-dim); }
.paper-meta .k {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  min-width: 7.5rem;
  flex-shrink: 0;
  padding-top: 0.16rem;
}
.paper-meta a { color: var(--link); }

/* part bands — the reading ladder */
.band {
  margin: 5.5rem 0 0;
  padding: 1.6rem 0 0.2rem;
  border-top: 1px solid var(--border);
}
.band-k {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
}
.band-h { font-size: 1.75rem; margin: 0 0 0.6rem; letter-spacing: -0.015em; }
.band-p { color: var(--text-dim); font-size: 1rem; max-width: 42rem; margin: 0; }

/* figure sections */
section.fig { margin-top: 3.4rem; }
section.fig h2 { font-size: 1.35rem; margin: 0.2rem 0 0.7rem; }
section.fig p { color: var(--text-dim); max-width: 44rem; }
section.fig p strong { color: var(--accent-soft); }
section.fig p em { color: var(--text); font-style: italic; }

figure.dia {
  margin: 1.6rem 0 0.6rem;
  background: rgba(16, 21, 28, 0.75);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.8rem;
  overflow: hidden;
}
figure.dia svg { width: 100%; height: auto; display: block; }
.fig-hint {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-align: right;
  margin: 0.35rem 0.2rem 0 0;
}

/* an aside — softer than body copy, for the "why this matters" beats */
.aside {
  border-left: 2px solid var(--border);
  padding: 0.15rem 0 0.15rem 1.1rem;
  margin: 1.4rem 0;
  font-size: 0.95rem;
}

/* callouts — the traps and the summaries */
.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: rgba(74, 222, 128, 0.05);
  padding: 1rem 1.2rem;
  margin: 1.6rem 0;
  font-size: 0.96rem;
}
.callout .ck {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

blockquote {
  margin: 1.4rem 0;
  padding: 0.3rem 0 0.3rem 1.25rem;
  border-left: 3px solid var(--accent);
  color: var(--text);
  font-size: 1.02rem;
}

/* the four approaches */
.approach-list { list-style: none; margin: 1.8rem 0; padding: 0; }
.approach-list li {
  display: flex;
  gap: 1.2rem;
  align-items: baseline;
  border: 1px solid var(--border);
  border-left: 3px solid rgba(74, 222, 128, 0.45);
  border-radius: 8px;
  background: rgba(16, 21, 28, 0.6);
  padding: 1rem 1.2rem;
  margin-bottom: 0.7rem;
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.approach-list li:hover { transform: translateX(4px); border-color: rgba(74, 222, 128, 0.45); }
.approach-list .an {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  flex-shrink: 0;
}
.approach-list h3 { margin: 0 0 0.3rem; font-size: 1rem; font-family: var(--mono); color: var(--accent-soft); }
.approach-list p { margin: 0; font-size: 0.93rem; color: var(--text-dim); }
.approach-list em { color: var(--text); font-style: italic; }

/* the three metrics, side by side */
.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
  margin: 2.2rem 0 0;
}
.metric-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(16, 21, 28, 0.7);
  padding: 1.1rem 1.2rem;
}
.metric-card .mk {
  display: block;
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.metric-card p { margin: 0.15rem 0; font-size: 0.95rem; color: var(--text); }
.metric-card p.dim { color: var(--text-dim); font-size: 0.85rem; }
.metric-card em { color: var(--accent-soft); font-style: normal; }

/* results table */
.tbl-wrap { overflow-x: auto; margin: 1.6rem 0; }
.tbl-wrap table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
.tbl-wrap th, .tbl-wrap td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  text-align: left;
  white-space: nowrap;
}
.tbl-wrap th {
  background: rgba(16, 21, 28, 0.9);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
}
.tbl-wrap td { color: var(--text-dim); font-family: var(--mono); font-size: 0.84rem; }
.tbl-wrap td:first-child { color: var(--text); font-family: var(--sans); font-size: 0.9rem; }
.tbl-wrap td.dimc { opacity: 0.65; }
.tbl-wrap td.win { color: var(--accent-soft); background: rgba(74, 222, 128, 0.06); }

/* takeaways */
.takeaways { margin: 1.4rem 0; padding-left: 1.1rem; }
.takeaways li { color: var(--text-dim); margin-bottom: 0.7rem; }
.takeaways strong { color: var(--accent-soft); }

.endcap { margin-top: 5rem; border-top: 1px solid var(--border); padding-top: 2rem; }
.endcap p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- knowledge base index ---------- */

/* toolbar: search + facet chips */
.kb-toolbar {
  position: sticky;
  top: 3.4rem;
  z-index: 20;
  margin: 2rem 0 0.6rem;
  padding: 0.9rem 0;
  background: linear-gradient(var(--bg) 78%, rgba(13, 17, 23, 0));
}
.kb-search { position: relative; }
.kb-search-ico {
  position: absolute;
  left: 0.85rem; top: 50%;
  width: 17px; height: 17px;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
}
#kbSearch {
  width: 100%;
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 0.7rem 2.4rem;
  -webkit-appearance: none;
  appearance: none;
}
#kbSearch::placeholder { color: var(--text-dim); }
#kbSearch:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.12);
}
#kbSearch::-webkit-search-cancel-button { display: none; }
#kbClear {
  position: absolute;
  right: 0.6rem; top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem 0.4rem;
}
#kbClear:hover { color: var(--accent); }

.kb-facets { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.7rem; }
.kb-facet {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--text-dim);
  background: rgba(16, 21, 28, 0.7);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background-color 0.15s;
}
.kb-facet:hover { color: var(--accent-soft); border-color: rgba(74, 222, 128, 0.4); }
.kb-facet.active {
  color: #0d1117;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

.kb-count { font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim); margin: 0 0 1.6rem; }
.kb-count strong { color: var(--accent); font-weight: 700; }

/* arc sections */
.kb-arc { margin: 0 0 2.6rem; }
.kb-arc-head { border-bottom: 1px solid var(--border); padding-bottom: 0.6rem; margin-bottom: 1.1rem; }
.kb-arc-head h2 { margin: 0 0 0.3rem; font-size: 1.3rem; }
.kb-arc-head p { margin: 0; color: var(--text-dim); font-size: 0.95rem; max-width: 46rem; }

/* card grid */
.kb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}
.kb-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(16, 21, 28, 0.7);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}
.kb-card:hover {
  transform: translateY(-3px);
  border-color: rgba(74, 222, 128, 0.45);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35), 0 0 18px rgba(74, 222, 128, 0.08);
}
.kb-card > a {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.15rem 1.3rem;
  text-decoration: none;
  color: inherit;
}
.kb-k {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.kb-card h3 { margin: 0.35rem 0 0.4rem; font-size: 1.08rem; color: var(--text); line-height: 1.3; }
.kb-card > a > p { margin: 0 0 0.9rem; color: var(--text-dim); font-size: 0.92rem; }
.kb-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: auto; }
.kb-tag-chip {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.kb-tag-chip:hover { color: var(--accent); border-color: rgba(74, 222, 128, 0.5); }
.kb-figs {
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent-soft);
}

/* planned entries — visibly "in the works" */
.kb-card.planned { background: rgba(16, 21, 28, 0.4); border-style: dashed; }
.kb-card.planned .kb-k { color: var(--text-dim); }
.kb-card.planned h3 { color: var(--text-dim); }
.kb-card.planned .kb-figs { color: var(--text-dim); }
.kb-card.planned:hover { border-color: rgba(139, 148, 158, 0.5); box-shadow: none; }

/* filter states */
.kb-hide { display: none !important; }
.kb-empty {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.3rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}
.kb-empty button {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
}
.kb-legend {
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 1rem 1.3rem;
  margin: 0.5rem 0 2rem;
}
.kb-legend p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }
.kb-legend strong { color: var(--accent-soft); }

@media (max-width: 640px) {
  .page { padding-top: 5.5rem; }
  .page-head h1 { font-size: 1.7rem; }
  .band-h { font-size: 1.4rem; }
  .paper-meta div { flex-direction: column; gap: 0.1rem; }
  .approach-list li { flex-direction: column; gap: 0.3rem; }
  .kb-toolbar { position: static; }
  .kb-list { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .approach-list li, .kb-card { transition: none; }
  .approach-list li:hover, .kb-card:hover { transform: none; }
}