/* Mantrakshar TOC Renderer */

:root {
  --toc-bg: #f5f7fb;
  --toc-card: #ffffff;
  --toc-ink: #162033;
  --toc-muted: #617189;
  --toc-line: #d9e2ef;
  --toc-line2: #cbd8eb;
  --toc-blue: #234b7a;
  --toc-blue2: #1d5f99;
  --toc-accent: #8a0f45;
  --toc-green: #0f7b38;
  --toc-warn: #a15c00;
  --toc-purple: #5c3fa3;
  --toc-shadow: rgba(10, 40, 80, .08);
}

* { box-sizing: border-box; }

body.toc-body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(35,75,122,.11), transparent 32rem),
    linear-gradient(90deg, rgba(35,75,122,.045), transparent 20%, transparent 80%, rgba(138,15,69,.04)),
    var(--toc-bg);
  color: var(--toc-ink);
  font: 15px/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.toc-site-header {
  min-height: 66px;
  background: #101827;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 26px;
  box-shadow: 0 8px 22px rgba(0,0,0,.18);
  position: sticky;
  top: 0;
  z-index: 50;
}

.toc-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: white;
  text-decoration: none;
  font-weight: 950;
  letter-spacing: .02em;
}

.toc-brand span {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--toc-blue2);
}

.toc-site-header nav {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
}

.toc-site-header nav a {
  color: #dbe5f3;
  text-decoration: none;
  padding: 8px 11px;
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
}

.toc-site-header nav a:hover {
  background: #1c2638;
  color: white;
}

.toc-shell {
  width: min(1180px, calc(100% - 28px));
  margin: 28px auto 48px;
}

.toc-document {
  background: var(--toc-card);
  border: 1px solid var(--toc-line);
  border-radius: 24px;
  box-shadow: 0 20px 60px var(--toc-shadow);
  overflow: hidden;
}

.toc-hero {
  padding: 36px 42px 30px;
  background:
    linear-gradient(135deg, rgba(35,75,122,.13), transparent),
    linear-gradient(180deg, #fff, #f8fbff);
  border-bottom: 1px solid var(--toc-line);
}

.toc-hero-kicker {
  display: inline-block;
  color: var(--toc-blue);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: .16em;
  text-transform: uppercase;
  border: 1px solid #bad0ed;
  background: #eef5ff;
  padding: 5px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.toc-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -.045em;
  color: #10213a;
  display: flex;
  align-items: center;
  gap: 12px;
}

.toc-hero p {
  margin: 14px 0 0;
  max-width: 760px;
  color: var(--toc-muted);
  font-size: 1.02rem;
}

.toc-view-switch {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.toc-view-switch a {
  text-decoration: none;
  color: var(--toc-blue);
  border: 1px solid #c7d8ee;
  background: #fff;
  padding: 8px 12px;
  border-radius: 999px;
  font-weight: 900;
}

.toc-view-switch a.active {
  background: var(--toc-blue);
  color: white;
  border-color: var(--toc-blue);
}

/* Shared */
.toc-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 8px;
  vertical-align: middle;
}

.toc-icon img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.toc-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 9px;
  border-radius: 999px;
  background: #eef5ff;
  color: var(--toc-blue);
  border: 1px solid #d6e4f7;
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.toc-status-draft { background: #fff3df; color: var(--toc-warn); border-color: #f4d7a6; }
.toc-status-planned { background: #f0eaff; color: var(--toc-purple); border-color: #d8c8f6; }
.toc-status-active { background: #e8f7ee; color: var(--toc-green); border-color: #cdeed7; }

.toc-open {
  color: var(--toc-muted);
  border-left: 1px solid var(--toc-line);
  padding-left: 14px;
  font-size: 13px;
  font-weight: 850;
  white-space: nowrap;
}

/* Book view */
.toc-book {
  padding: 28px 38px 42px;
}

.toc-book-part {
  margin: 8px 0 34px;
}

.toc-book-part-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  margin: 24px 0 16px;
}

.toc-book-part-no {
  min-width: 112px;
  text-align: center;
  padding: 9px 13px;
  background: var(--toc-blue);
  color: white;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 950;
}

.toc-book-part-title {
  border-bottom: 2px solid #d9e6f6;
  padding-bottom: 9px;
}

.toc-book-part-title h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 2.15rem);
  letter-spacing: -.03em;
}

.toc-book-part-title p {
  margin: 5px 0 0;
  color: var(--toc-muted);
}

.toc-book-chapters {
  display: grid;
  gap: 12px;
}

.toc-book-chapter {
  display: block;
}

.toc-book-chapter-main {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  gap: 15px;
  align-items: center;
  padding: 15px 17px;
  border: 1px solid var(--toc-line);
  border-radius: 16px;
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}

.toc-book-chapter-main:hover {
  transform: translateY(-2px);
  border-color: #b8cbe6;
  box-shadow: 0 12px 24px var(--toc-shadow);
}

.toc-book-chapter-no {
  color: var(--toc-blue);
  font-weight: 950;
  font-variant-numeric: tabular-nums;
}

.toc-book-chapter-kicker {
  color: var(--toc-muted);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 950;
  margin-bottom: 2px;
}

.toc-book-chapter-title {
  font-size: 1.05rem;
  font-weight: 950;
  color: #17243a;
}

.toc-book-chapter-desc {
  color: var(--toc-muted);
  font-size: .92rem;
  margin-top: 2px;
}

.toc-book-subchapters {
  margin: 8px 0 2px 104px;
  display: grid;
  gap: 7px;
}

.toc-book-subchapters .toc-book-chapter-main {
  grid-template-columns: 76px minmax(0,1fr) auto;
  padding: 11px 14px;
  border-radius: 13px;
  background: #f9fbff;
}

.toc-book-subchapters .toc-book-subchapters {
  margin-left: 80px;
}

/* Tree view */
.toc-tools {
  display: flex;
  gap: 9px;
  align-items: center;
  flex-wrap: wrap;
  padding: 18px 28px 0;
}

.toc-search {
  min-width: 260px;
  flex: 1;
  border: 1px solid var(--toc-line);
  border-radius: 999px;
  padding: 11px 14px;
  font: inherit;
  font-weight: 750;
}

.toc-tools button {
  border: 1px solid var(--toc-line);
  background: #fff;
  border-radius: 999px;
  padding: 10px 12px;
  font-weight: 900;
  color: var(--toc-blue);
  cursor: pointer;
}

.toc-tree {
  padding: 24px 34px 38px;
}

.toc-tree-level {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.toc-tree-level .toc-tree-level {
  margin-top: 8px;
  margin-left: 32px;
}

.toc-tree-item.is-collapsed > .toc-tree-level {
  display: none;
}

.toc-tree-row {
  display: flex;
  align-items: stretch;
  gap: 7px;
}

.toc-tree-toggle,
.toc-tree-spacer {
  width: 32px;
  height: 44px;
  border: 1px solid var(--toc-line);
  background: #fff;
  border-radius: 11px;
  color: var(--toc-blue);
  font-weight: 950;
  cursor: pointer;
}

.toc-tree-spacer {
  border-color: transparent;
  background: transparent;
  cursor: default;
}

.toc-tree-item.is-collapsed > .toc-tree-row .toc-tree-toggle {
  transform: rotate(-90deg);
}

.toc-tree-link {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 9px 12px;
  border: 1px solid var(--toc-line);
  border-radius: 13px;
  text-decoration: none;
  color: inherit;
  background: #fff;
}

.toc-tree-link:hover {
  border-color: #b8cbe6;
  background: #f8fbff;
}

.toc-tree-no {
  color: var(--toc-blue);
  font-weight: 950;
  min-width: 48px;
}

.toc-tree-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.toc-tree-title {
  font-weight: 950;
  color: #17243a;
}

.toc-tree-desc {
  color: var(--toc-muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Cards */
.toc-card-grid {
  padding: 30px 36px 42px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.toc-card {
  display: flex;
  flex-direction: column;
  min-height: 170px;
  padding: 18px;
  border: 1px solid var(--toc-line);
  border-radius: 18px;
  background: linear-gradient(180deg, #fff, #f9fbff);
  color: inherit;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(10,40,80,.045);
  transition: transform .14s ease, border-color .14s ease, box-shadow .14s ease;
}

.toc-card:hover {
  transform: translateY(-2px);
  border-color: #b8cbe6;
  box-shadow: 0 14px 30px rgba(10,40,80,.09);
}

.toc-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.toc-card-kicker {
  color: var(--toc-blue);
  font-weight: 950;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.toc-card h3 {
  margin: 0;
  font-size: 1.16rem;
  color: #17243a;
}

.toc-card p {
  margin: 8px 0 0;
  color: var(--toc-muted);
}

.toc-card .toc-badge {
  margin-left: auto;
}

/* Compact */
.toc-compact {
  padding: 28px 38px 42px;
}

.toc-compact-row a {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid #edf2f8;
  color: inherit;
  text-decoration: none;
}

.toc-compact-row a:hover {
  background: #f8fbff;
}

.toc-depth-2 { padding-left: 24px; }
.toc-depth-3 { padding-left: 48px; }
.toc-depth-4 { padding-left: 72px; }

.toc-compact-no {
  color: var(--toc-blue);
  font-weight: 950;
}

.toc-compact-title {
  font-weight: 850;
}

/* States/types */
.toc-type-anatomy .toc-icon,
.toc-type-medical .toc-icon { color: var(--toc-accent); }
.toc-type-grammar .toc-icon,
.toc-type-glyph .toc-icon { color: var(--toc-purple); }

.toc-empty {
  margin: 28px;
  padding: 24px;
  border: 1px dashed var(--toc-line2);
  border-radius: 18px;
  background: #fff;
}

.toc-empty h2 { margin-top: 0; }

.toc-hidden-by-search {
  display: none !important;
}

@media(max-width: 820px) {
  .toc-site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 18px;
  }

  .toc-site-header nav {
    width: 100%;
  }

  .toc-shell {
    width: min(100% - 14px, 1180px);
    margin-top: 14px;
  }

  .toc-document {
    border-radius: 16px;
  }

  .toc-hero {
    padding: 26px 20px;
  }

  .toc-book,
  .toc-tree,
  .toc-card-grid,
  .toc-compact {
    padding: 22px 16px 30px;
  }

  .toc-book-part-head {
    grid-template-columns: 1fr;
  }

  .toc-book-part-no {
    width: fit-content;
  }

  .toc-book-chapter-main {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .toc-open {
    border-left: 0;
    padding-left: 0;
  }

  .toc-book-subchapters,
  .toc-book-subchapters .toc-book-subchapters,
  .toc-tree-level .toc-tree-level {
    margin-left: 12px;
  }

  .toc-tree-link {
    align-items: flex-start;
  }

  .toc-tree-desc {
    white-space: normal;
  }

  .toc-compact-row a {
    grid-template-columns: 1fr;
  }

  .toc-depth-2,
  .toc-depth-3,
  .toc-depth-4 {
    padding-left: 14px;
  }
}