/* Документация Яндекс — зеркало офиц. доки + диффы. Строгая аналитическая тема. */

.yd {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 1.25rem;
  min-height: 60vh;
}

/* ---- навигация по страницам ---- */
.yd__nav {
  position: sticky;
  top: 1rem;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: calc(100vh - 6rem);
  overflow: auto;
  padding: 0.9rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.yd__nav-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.yd__search {
  width: 100%;
  padding: 0.45rem 0.6rem;
  font-size: 0.82rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: none;
}
.yd__search:focus { border-color: var(--accent-border); }

.yd__group-name {
  margin: 0.6rem 0 0.25rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.yd__page {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  width: 100%;
  padding: 0.42rem 0.55rem;
  font-size: 0.83rem;
  text-align: left;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
  cursor: pointer;
}
.yd__page:hover { background: var(--surface-hover); color: var(--text); }
.yd__page--active {
  color: var(--text);
  background: var(--accent-soft);
  border-left-color: var(--accent-2, #4a9ee8);
  font-weight: 600;
}
.yd__pending { color: var(--text-faint); }

/* ---- тулбар / вкладки ---- */
.yd__main { min-width: 0; }

.yd__toolbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.yd__tabs { display: flex; gap: 0.35rem; }

.yd__tab {
  padding: 0.4rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}
.yd__tab:hover { color: var(--text); background: var(--surface-hover); }
.yd__tab--active {
  color: var(--text);
  background: var(--surface);
  border-color: var(--border-strong);
}
.yd__cnt {
  display: inline-block;
  min-width: 1.4em;
  padding: 0 0.35em;
  font-size: 0.72rem;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-2, #4a9ee8);
}

.yd__meta {
  flex: 1;
  font-size: 0.78rem;
  color: var(--text-faint);
  text-align: right;
}

.yd__refresh {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}
.yd__refresh:hover:not(:disabled) { background: var(--surface-hover); }
.yd__refresh:disabled { opacity: 0.5; cursor: wait; }

/* ---- документ ---- */
.yd__doc-head { margin-bottom: 1.1rem; }
.yd__doc-title { margin: 0 0 0.35rem; font-size: 1.45rem; font-weight: 700; }
.yd__doc-sub {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.yd__doc-sub a { color: var(--accent-2, #4a9ee8); text-decoration: none; }
.yd__doc-sub a:hover { text-decoration: underline; }
.yd__items { color: var(--text-faint); }

.yd__body {
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--text);
}
.yd__body p { margin: 0 0 0.8rem; }
.yd__body ul, .yd__body ol { margin: 0 0 0.9rem; padding-left: 1.5rem; }
.yd__body li { margin-bottom: 0.45rem; }
.yd__body li::marker { color: var(--text-faint); }
.yd__body a { color: var(--accent-2, #4a9ee8); text-decoration: none; }
.yd__body a:hover { text-decoration: underline; }
.yd__body code {
  padding: 0.12em 0.4em;
  font-size: 0.85em;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
}
.yd__body hr { border: none; border-top: 1px solid var(--border); margin: 1.4rem 0; }
.yd__body mark { background: rgba(240, 180, 60, 0.35); color: inherit; border-radius: 2px; }

.yd-h { margin: 1.5rem 0 0.7rem; line-height: 1.3; }
.yd__body h2.yd-h { font-size: 1.2rem; padding-top: 0.6rem; border-top: 1px solid var(--border); }
.yd__body h2.yd-h:first-child { border-top: none; padding-top: 0; }
.yd__body h3.yd-h { font-size: 1.05rem; }
.yd__body h4.yd-h, .yd__body h5.yd-h { font-size: 0.95rem; color: var(--text-muted); }

.yd-code {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.55;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  white-space: pre;
}
.yd-code code { padding: 0; background: none; border: none; }

.yd-table {
  width: 100%;
  margin: 0 0 1rem;
  border-collapse: collapse;
  font-size: 0.84rem;
}
.yd-table th, .yd-table td {
  padding: 0.5rem 0.7rem;
  text-align: left;
  border: 1px solid var(--border);
  vertical-align: top;
}
.yd-table th { background: var(--surface); font-weight: 600; }

.yd-note {
  margin: 0 0 1rem;
  padding: 0.7rem 0.9rem;
  font-size: 0.86rem;
  border-radius: 8px;
  border-left: 3px solid var(--accent-2, #4a9ee8);
  background: var(--accent-soft);
}
.yd-note--warning { border-left-color: #d9a520; background: rgba(217, 165, 32, 0.1); }
.yd-note--alert { border-left-color: #d9534f; background: rgba(217, 83, 79, 0.1); }
.yd-note p:last-child { margin-bottom: 0; }

.yd-cut {
  margin: 0 0 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.yd-cut > summary {
  padding: 0.55rem 0.85rem;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--surface);
}
.yd-cut > *:not(summary) { padding: 0.6rem 0.9rem; }

.yd-img { max-width: 100%; height: auto; border-radius: 6px; border: 1px solid var(--border); }

/* якорь пункта требований {#1-2} */
.yd-anchor {
  display: inline-block;
  margin-left: 0.35em;
  padding: 0.05em 0.45em;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: ui-monospace, monospace;
  color: var(--text-faint);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  vertical-align: middle;
}

.yd-dep {
  display: inline-block;
  margin-left: 0.3em;
  padding: 0.05em 0.45em;
  font-size: 0.68rem;
  font-weight: 600;
  color: #d9534f;
  background: rgba(217, 83, 79, 0.12);
  border-radius: 4px;
  vertical-align: middle;
}
.yd-item--deprecated { opacity: 0.6; }
.yd-item--deprecated > :first-child { text-decoration: line-through; }

/* бейджи изменений в тексте */
.yd-badge {
  display: inline-block;
  margin-left: 0.3em;
  padding: 0.05em 0.5em;
  font-size: 0.68rem;
  font-weight: 700;
  border-radius: 4px;
  vertical-align: middle;
}
.yd-badge--added { color: #3fb950; background: rgba(63, 185, 80, 0.14); }
.yd-badge--changed { color: #d9a520; background: rgba(217, 165, 32, 0.14); }
.yd-badge--removed { color: #d9534f; background: rgba(217, 83, 79, 0.14); }

/* ---- лента изменений ---- */
.yd__day { margin-bottom: 1.3rem; }
.yd__day-title {
  margin-bottom: 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.yd__chg {
  display: flex;
  gap: 0.7rem;
  margin-bottom: 0.5rem;
  padding: 0.7rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.yd__chg-kind {
  flex-shrink: 0;
  align-self: flex-start;
  padding: 0.15em 0.55em;
  font-size: 0.68rem;
  font-weight: 700;
  border-radius: 4px;
}
.yd__chg--added .yd__chg-kind { color: #3fb950; background: rgba(63, 185, 80, 0.14); }
.yd__chg--changed .yd__chg-kind { color: #d9a520; background: rgba(217, 165, 32, 0.14); }
.yd__chg--removed .yd__chg-kind { color: #d9534f; background: rgba(217, 83, 79, 0.14); }

.yd__chg-main { min-width: 0; flex: 1; }
.yd__chg-head { display: flex; justify-content: space-between; gap: 0.6rem; font-size: 0.85rem; }
.yd__chg-page { color: var(--accent-2, #4a9ee8); font-size: 0.78rem; text-decoration: none; white-space: nowrap; }
.yd__chg-page:hover { text-decoration: underline; }
.yd__chg-label { margin-top: 0.2rem; font-size: 0.78rem; color: var(--text-muted); font-family: ui-monospace, monospace; }
.yd__chg-text {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.yd__diff { margin-top: 0.45rem; font-size: 0.8rem; }
.yd__diff summary { cursor: pointer; color: var(--accent-2, #4a9ee8); font-size: 0.78rem; }
.yd__diff-before, .yd__diff-after {
  margin-top: 0.4rem;
  padding: 0.55rem 0.7rem;
  font-size: 0.78rem;
  line-height: 1.5;
  border-radius: 6px;
  white-space: pre-wrap;
  word-break: break-word;
}
.yd__diff-before { background: rgba(217, 83, 79, 0.08); border-left: 3px solid #d9534f; color: var(--text-muted); }
.yd__diff-after { background: rgba(63, 185, 80, 0.08); border-left: 3px solid #3fb950; }

.yd__empty {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.9rem;
}

/* ---- мобильная ---- */
@media (max-width: 860px) {
  .yd { grid-template-columns: 1fr; }
  .yd__nav { position: static; max-height: none; }
}