/* tree.css — the catalogue as a tree (shared by vedanta/ and shankara/ home pages). Uses adv.css tokens. */
.cat { display: grid; grid-template-columns: 236px 1fr; max-width: 1320px; margin: 0 auto; }
.cat-nav { position: sticky; top: var(--bar-h, 64px); align-self: start; max-height: calc(100vh - var(--bar-h, 64px)); overflow: auto;
  padding: 18px 12px; border-right: 1px solid var(--rule); }
.cat-nav a { display: block; text-decoration: none; color: var(--ink); padding: 7px 10px; border-radius: 6px; }
.cat-nav a:hover { background: var(--accent-bg); text-decoration: none; }
.cat-nav a .dev { font-family: var(--serif); font-size: 1rem; }
.cat-nav small { display: block; color: var(--ink-faint); font-size: .72rem; line-height: 1.3; }
.cat-main { padding: 12px 28px 80px; min-width: 0; }
.cat-head h1 { font-family: var(--serif); font-size: 2rem; color: var(--accent); margin: 8px 0 2px; font-weight: 600; }
.cat-head h1 small { font: 400 .95rem var(--sans); color: var(--ink-soft); margin-left: .4em; }
.cat-head p { color: var(--ink-soft); font-size: .9rem; margin: 2px 0 10px; }
.cat-tools { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 6px 0 4px; }
.cat-tools input { flex: 1 1 260px; max-width: 440px; }
.legend { font-size: .78rem; color: var(--ink-soft); margin: 8px 0 14px; line-height: 1.6; }
.grp { margin: 26px 0; scroll-margin-top: calc(var(--bar-h, 64px) + 10px); }
.grp h2 { font-size: 1.35rem; border-bottom: 2px solid var(--accent-bg); padding-bottom: 6px; margin: 0 0 6px; font-weight: 600; }
.grp h2 .dev { color: var(--accent); font-family: var(--serif); }
.grp h2 small { font: 400 .85rem var(--sans); color: var(--ink-soft); margin-left: .6em; }
.grp h3 { font: 600 .74rem var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-faint); margin: 18px 0 4px; }
.ctree, .ctree ul { list-style: none; margin: 0; padding: 0; }
.ctree > .tr-row { border-top: 1px solid var(--rule); }
.ctree ul { margin-left: 22px; border-left: 2px solid var(--tika-soft); }
.tr-line { display: grid; grid-template-columns: minmax(0, 1fr) 220px 150px; gap: 10px; align-items: center; padding: 6px 10px; border-radius: 6px; }
.tr-line:hover { background: var(--accent-bg); }
.ctree ul .tr-line { position: relative; padding-left: 16px; }
.ctree ul .tr-line::before { content: ''; position: absolute; left: 0; top: 50%; width: 10px; border-top: 2px solid var(--tika-soft); }
.t-title { font-family: var(--serif); font-size: 1.06rem; color: var(--ink); text-decoration: none; }
.d0 > .tr-line .t-title { font-weight: 600; }
.ctree ul .t-title { font-size: .98rem; color: var(--tika); }
.t-title:hover { text-decoration: underline; color: var(--accent); }
.t-en { font-size: .74rem; color: var(--ink-faint); margin-left: .5em; }
.t-with { margin-left: .7em; font-size: .78rem; white-space: nowrap; }
.t-with a { font-family: var(--serif); color: var(--accent-soft); }
.t-who { font-family: var(--serif); font-size: .8rem; color: var(--ink-soft); }
.t-lay { display: flex; gap: 4px; justify-content: flex-end; }
.lc { font: 600 .66rem/1.6 var(--sans); padding: 0 6px; border-radius: 4px; background: #e2eedc; color: #3c5c34; white-space: nowrap; }
.lc.part { opacity: .75; }
.lc.off { background: transparent; color: var(--rule-strong); border: 1px dashed var(--rule-strong); }
.badge-new { font: 600 .62rem var(--sans); background: var(--accent); color: #fff; border-radius: 4px; padding: 1px 5px; margin-left: .5em; vertical-align: 2px; text-transform: uppercase; letter-spacing: .05em; }
.badge-rd { font: 600 .62rem var(--sans); border: 1px solid var(--rule-strong); color: var(--ink-soft); border-radius: 4px; padding: 0 5px; margin-left: .5em; vertical-align: 2px; }
html[data-theme="dark"] .lc, html[data-theme="night"] .lc { background: #24331f; color: #b3d6a4; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .lc:not(.off) { background: #24331f; color: #b3d6a4; } }
@media (max-width: 860px) {
  .cat { grid-template-columns: 1fr; }
  .cat-nav { position: static; max-height: none; display: flex; flex-wrap: wrap; gap: 2px; border-right: 0; border-bottom: 1px solid var(--rule); padding: 8px 12px; }
  .cat-nav a { padding: 4px 8px; } .cat-nav small { display: none; }
  .cat-main { padding: 10px 14px 60px; }
  .tr-line { grid-template-columns: 1fr; gap: 2px; }
  .t-lay { justify-content: flex-start; }
  .ctree ul { margin-left: 12px; }
}