:root {
  color-scheme: light dark;
  --bg: #f6f7f4;
  --panel: #fff;
  --ink: #1f2933;
  --muted: #667085;
  --line: #d9ddd5;
  --accent: #2f6f73;
  --amber: #9b6a20;
  --red: #a23b36;
  --blue: #315f8c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
button, input, select { font: inherit; }
.intel-top {
  position: sticky;
  top: 0;
  z-index: 5;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px clamp(12px, 3vw, 24px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter: blur(12px);
}
.intel-top strong { font-size: 18px; margin-right: 8px; }
.intel-top span { color: var(--muted); font-size: 13px; }
.intel-top nav { display: flex; gap: 6px; overflow-x: auto; }
.intel-top nav a {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 8px;
  background: var(--panel);
}
.intel-controls {
  position: sticky;
  top: 49px;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) repeat(3, minmax(120px, 180px));
  gap: 8px;
  padding: 8px clamp(12px, 3vw, 24px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(12px);
}
.intel-controls input, .intel-controls select {
  width: 100%;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  padding: 5px 8px;
}
.intel-layout {
  display: grid;
  grid-template-columns: minmax(190px, 260px) minmax(0, 1fr);
  gap: 14px;
  padding: 14px clamp(12px, 3vw, 24px) 28px;
}
.intel-rail {
  position: sticky;
  top: 104px;
  align-self: start;
  max-height: calc(100vh - 120px);
  overflow: auto;
}
.priority-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 7px;
  margin-bottom: 10px;
}
.metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 8px;
}
.metric strong { display: block; font-size: 20px; line-height: 1.1; }
.metric span { color: var(--muted); font-size: 12px; }
.topic-index {
  display: grid;
  gap: 5px;
}
.topic-index a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  padding: 6px 8px;
  color: var(--ink);
  font-size: 13px;
}
.topic-list { display: grid; gap: 12px; }
.topic-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: clamp(12px, 2vw, 18px);
  scroll-margin-top: 112px;
}
.topic-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}
.topic-head h2 {
  margin: 0;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.3;
}
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 10px; }
.badge {
  border-radius: 999px;
  padding: 2px 8px;
  background: #eef5f2;
  color: var(--accent);
  font-size: 12px;
}
.badge.hot { background: #fbeee5; color: var(--red); }
.badge.freq { background: #fff4d8; color: var(--amber); }
.badge.pending { background: #eef2ff; color: var(--blue); }
.badge.outline { background: #eaf4ef; color: #226247; }
.priority-badge {
  cursor: help;
  text-decoration: underline dotted;
  text-underline-offset: 3px;
}
.topic-body { display: grid; gap: 8px; }
.topic-body p, .ai-answer p { margin: 0; }
.topic-body ul, .ai-answer ul { margin: 0; padding-left: 1.2em; }
.topic-body .answer-lead,
.ai-answer .answer-lead {
  background: color-mix(in srgb, var(--panel) 88%, var(--accent) 12%);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 8px 10px;
  font-weight: 650;
}
.topic-body .answer-flow,
.ai-answer .answer-flow {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}
.ai-answer {
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 88%, var(--blue) 12%);
  padding: 10px 12px;
  margin-top: 10px;
  display: grid;
  gap: 8px;
}
.ai-answer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  font-weight: 800;
  color: var(--blue);
}
.topic-body .answer-section,
.ai-answer .answer-section {
  border-left: 3px solid var(--line);
  padding-left: 10px;
  margin: 2px 0;
}
.topic-body .answer-section-title,
.ai-answer .answer-section-title {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
}
.topic-body .answer-section-title::before,
.ai-answer .answer-section-title::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: currentColor;
}
.topic-meta {
  color: var(--muted);
  font-size: 13px;
  margin: 8px 0;
}
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.link-row a, .copy-topic {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--accent);
  padding: 4px 8px;
  font-size: 13px;
}
.copy-topic { cursor: pointer; }
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 10px;
}
.media-grid img {
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.table-wrap {
  overflow: auto;
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.table-wrap table { width: 100%; border-collapse: collapse; min-width: 520px; }
.table-wrap th, .table-wrap td { border: 1px solid var(--line); padding: 6px 8px; vertical-align: top; }
.empty {
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 24px;
  color: var(--muted);
}
.intel-toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  pointer-events: none;
  background: #1f2933;
  color: #fff;
  border-radius: 999px;
  padding: 8px 14px;
  transition: .2s ease;
}
.intel-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111513;
    --panel: #181d1a;
    --ink: #edf2ee;
    --muted: #a2aba3;
    --line: #2b332e;
    --accent: #89c7b1;
    --amber: #e0b45f;
    --red: #f08f86;
    --blue: #91b9e8;
  }
  .badge { background: #20312d; }
  .badge.hot { background: #39201f; }
  .badge.freq { background: #382d16; }
  .badge.pending { background: #1e2a40; }
  .badge.outline { background: #1d3329; color: #9bd4bc; }
}
@media (max-width: 760px) {
  body { font-size: 14px; }
  .intel-top { align-items: start; }
  .intel-top nav a { padding: 3px 7px; }
  .intel-controls {
    top: 49px;
    grid-template-columns: 1fr 1fr;
  }
  .intel-controls input { grid-column: 1 / -1; }
  .intel-layout { display: block; padding-top: 10px; }
  .intel-rail {
    position: static;
    max-height: none;
    margin-bottom: 10px;
  }
  .topic-index {
    display: flex;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .topic-index a { min-width: 160px; }
  .topic-card { scroll-margin-top: 136px; }
}

.embedded-card-button {
  max-width: 100%;
  border: 1px solid var(--line, #d9ddd5);
  border-radius: 6px;
  background: var(--panel, #fff);
  color: var(--accent, #2f6f73);
  padding: 4px 8px;
  font-size: 13px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.embedded-card-button:hover,
.embedded-card-button.active {
  border-color: var(--accent, #2f6f73);
  background: var(--accent-soft, #eef5f2);
}
.embedded-card-slot {
  flex-basis: 100%;
  width: 100%;
}
.embedded-card {
  display: grid;
  gap: 8px;
  width: 100%;
  margin: 8px 0 2px;
  border: 1px solid var(--line, #d9ddd5);
  border-left: 4px solid var(--accent, #2f6f73);
  border-radius: 8px;
  background: var(--panel, #fff);
  color: var(--ink, #1f2933);
  padding: 10px 12px;
}
.embedded-card-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}
.embedded-card-head strong {
  font-size: 15px;
  line-height: 1.4;
}
.embedded-card-meta {
  color: var(--muted, #667085);
  font-size: 12px;
}
.embedded-card-answer {
  border-top: 1px solid var(--line, #d9ddd5);
  padding-top: 8px;
}
.embedded-card .textbook-ref {
  border: 1px solid var(--line, #d9ddd5);
  border-radius: 7px;
  background: var(--field, var(--panel, #fff));
  padding: 0;
  margin: 0;
  font-size: 13px;
  overflow: hidden;
}
.embedded-card .textbook-ref summary {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 32px;
  padding: 6px 8px;
  cursor: pointer;
  list-style: none;
}
.embedded-card .textbook-ref summary::-webkit-details-marker { display: none; }
.embedded-card .textbook-ref summary::after {
  content: "▾";
  margin-left: auto;
  color: var(--muted, #667085);
  font-size: 11px;
  transition: transform 0.15s ease;
}
.embedded-card .textbook-ref[open] summary::after { transform: rotate(180deg); }
.embedded-card .textbook-ref strong { color: var(--accent, #2f6f73); white-space: nowrap; }
.embedded-card .textbook-ref .ref-title { color: var(--text, #1f2933); font-weight: 700; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.embedded-card .textbook-ref a { color: var(--accent, #2f6f73); font-weight: 700; }
.embedded-card .textbook-ref small { display: block; color: var(--muted, #667085); margin-top: 3px; }
.embedded-card .ref-tags { display: inline-flex; flex-wrap: wrap; gap: 4px; margin-left: 4px; vertical-align: middle; }
.embedded-card .ref-tag {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line, #d9ddd5);
  border-radius: 999px;
  background: var(--accent-soft, #eef5f2);
  color: var(--accent, #2f6f73);
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.45;
}
.embedded-card .ref-tag.warn { background: #fff7e6; color: var(--gold, #9b6a20); }
.embedded-card .ref-body {
  border-top: 1px solid var(--line, #d9ddd5);
  padding: 7px 8px 8px;
}
.embedded-card .ref-evidence { display: block; color: var(--muted, #667085); margin: 0 0 7px; font-size: 12px; line-height: 1.5; }
.embedded-card .ref-open { display: inline-flex; align-items: center; min-height: 26px; }
.embedded-card-answer p { margin: 0 0 6px; }
.embedded-card-answer ul { margin: 0 0 6px 18px; padding: 0; }
.embedded-card-answer .answer-section {
  border-left: 3px solid var(--line, #d9ddd5);
  padding: 1px 0 1px 10px;
  margin: 8px 0;
}
.embedded-card-answer .answer-section-title {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 0 0 5px;
  color: var(--accent, #2f6f73);
  font-size: 13px;
  font-weight: 800;
}
.embedded-card-answer .answer-section-title::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: currentColor;
}
.embedded-card-answer .answer-lead {
  border: 1px solid var(--line, #d9ddd5);
  border-radius: 7px;
  background: var(--field, #f7f7f3);
  padding: 8px 9px;
  margin: 6px 0 8px;
  font-weight: 700;
}
.embedded-card-answer .answer-flow {
  display: grid;
  gap: 5px;
  margin: 6px 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}
.embedded-card-answer .answer-flow li {
  counter-increment: flow;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 7px;
  align-items: start;
}
.embedded-card-answer .answer-flow li::before {
  content: counter(flow);
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--field, #f7f7f3);
  color: var(--accent, #2f6f73);
  font-size: 11px;
  font-weight: 800;
}
.embedded-card-answer .table-wrap { overflow: auto; }
.embedded-card-ratings {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}
.embedded-card-ratings button {
  min-width: 0;
  border: 1px solid var(--line, #d9ddd5);
  border-radius: 6px;
  background: var(--field, var(--panel, #fff));
  color: var(--ink, #1f2933);
  padding: 5px 6px;
  cursor: pointer;
  font-size: 12px;
}
.embedded-card-ratings button:nth-child(1) { color: var(--danger, #9f3a38); }
.embedded-card-ratings button:nth-child(2) { color: var(--gold, #9b6a20); }
.embedded-card-ratings button:nth-child(3),
.embedded-card-ratings button:nth-child(4) { color: var(--accent, #2f6f73); }
@media (max-width: 560px) {
  .embedded-card-ratings { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}