/* Портал хаба: одна колонка, спокойный серый, мобильный первым (СПЕЦИФИКАЦИЯ.md, раздел 13). */
:root {
  --bg: #f5f5f3;
  --paper: #ffffff;
  --ink: #1f1f1e;
  --muted: #6b6b68;
  --faint: #9a9a96;
  --line: #e3e3df;
  --link: #2f4f6f;
  --late: #9b3d2e;
  --mark: #eef0ea;
  --code: #f0f0ed;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1b1a;
    --paper: #232322;
    --ink: #e6e6e3;
    --muted: #a3a39e;
    --faint: #76766f;
    --line: #353533;
    --link: #a9c1d9;
    --late: #e08c7a;
    --mark: #2b2d28;
    --code: #2a2a28;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
main, .top { max-width: 44rem; margin: 0 auto; padding: 0 16px; }
main { padding-bottom: 4rem; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; line-height: 1.25; margin: 1.25rem 0 .25rem; font-weight: 600; }
h1.lead { font-size: 1.2rem; font-weight: 500; line-height: 1.4; margin-top: .5rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 .5rem; font-weight: 600; }
h3 { font-size: 1rem; margin: 1.25rem 0 .25rem; font-weight: 600; }
p { margin: .5rem 0; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85em; }
code { background: var(--code); padding: 0 .25em; border-radius: 3px; }
ul { padding-left: 0; list-style: none; margin: .25rem 0; }
.sub, .muted, .hint { color: var(--muted); }
.hint { font-size: .875rem; }
.sub { font-size: .9rem; font-weight: 400; }

/* шапка */
.top { padding-top: .75rem; padding-bottom: .5rem; border-bottom: 1px solid var(--line); }
.top nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; }
.top nav a { color: var(--muted); }
.top nav a.on { color: var(--ink); font-weight: 600; }
.top nav .brand { color: var(--ink); font-weight: 600; }
.top nav.second { font-size: .9rem; margin-top: .25rem; }
.find { margin-top: .5rem; }
.find input, form input[type=text], form input[type=date], form input:not([type]) {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--paper);
  border: 1px solid var(--line); border-radius: 6px; padding: .35rem .5rem;
}
.find input { width: 100%; }
.crumbs { color: var(--muted); font-size: .9rem; margin-top: 1rem; }

/* темы */
.topics li { padding: .6rem 0; border-bottom: 1px solid var(--line); }
.topics li:last-child { border-bottom: 0; }
.topics .title { font-weight: 600; }
.topics .line { margin: .2rem 0 0; color: var(--muted); font-size: .95rem; }
.summary { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: .75rem 1rem; margin-top: 1rem; }
.summary h2 { margin-top: 0; }
.purpose { color: var(--muted); margin-top: 0; }

/* записи */
.entries > li { padding: .65rem 0; border-bottom: 1px solid var(--line); }
.entries > li:last-child { border-bottom: 0; }
.entries .text { margin: 0; }
.meta { color: var(--muted); font-size: .85rem; margin-top: .15rem; }
.meta .id { color: var(--muted); }
.meta .id:hover { color: var(--link); }
.kind { font-size: .75rem; letter-spacing: .03em; text-transform: uppercase; color: var(--muted);
  border: 1px solid var(--line); border-radius: 4px; padding: 0 .3rem; margin-right: .15rem; white-space: nowrap; }
.tag { color: var(--faint); margin-left: .35rem; white-space: nowrap; }
.late { color: var(--late); margin-left: .35rem; }
.mark { font-size: .8rem; color: var(--muted); background: var(--mark); border-radius: 4px; padding: 0 .35rem; margin-right: .25rem; }
.s-superseded summary, .s-withdrawn summary { color: var(--muted); }
.gone { text-decoration: line-through; text-decoration-color: var(--faint); }
details > summary { cursor: pointer; }
details.more > summary, details.acts > summary { color: var(--faint); font-size: .85rem; margin-top: .15rem; list-style: none; display: inline-block; }
details.more > summary::-webkit-details-marker, details.acts > summary::-webkit-details-marker { display: none; }
details.more[open] > summary, details.acts[open] > summary { color: var(--muted); }
.details { white-space: pre-wrap; font-size: .95rem; background: var(--paper); border-left: 3px solid var(--line);
  padding: .5rem .75rem; margin: .35rem 0 0; overflow-wrap: anywhere; }
.inline-sum { display: flex; gap: 1rem; }
blockquote { margin: .35rem 0 0; padding: .25rem .75rem; border-left: 3px solid var(--line); color: var(--muted); font-size: .95rem; }

/* действия */
.acts form { margin: .5rem 0; display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.acts form input:not([type=hidden]) { flex: 1 1 12rem; min-width: 0; }
button {
  font: inherit; font-size: .9rem; color: var(--ink); background: var(--paper); cursor: pointer;
  border: 1px solid var(--line); border-radius: 6px; padding: .3rem .75rem;
}
button:hover { border-color: var(--muted); }
button.warn { color: var(--late); }
button.login { font-size: 1rem; padding: .5rem 1.25rem; }
button:disabled { opacity: .5; cursor: default; }
.inline-form { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }

/* группы истории и списки */
.group { margin-top: 1rem; }
.group h3 { font-size: .95rem; margin-bottom: 0; }
.group h3 .meta { font-weight: 400; display: inline; }
.plain li { padding: .2rem 0; }
.daynav { display: flex; justify-content: space-between; color: var(--muted); font-size: .9rem; }

/* поля и словари */
dl.card { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; margin: 1rem 0; }
dl.card dt { color: var(--muted); }
dl.card dd { margin: 0; overflow-wrap: anywhere; }
dl.fields { margin: .5rem 0; }
dl.fields dt { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85rem; margin-top: .6rem; }
dl.fields dd { margin: 0; overflow-wrap: anywhere; }
dl.fields .val { white-space: pre-wrap; }
dl.fields .val.empty { color: var(--faint); }
dl.fields .doc { color: var(--muted); font-size: .85rem; }

/* как устроено: дерево */
.tree, .tree ul { list-style: none; padding-left: 0; }
.tree ul { margin-left: .4rem; padding-left: 1rem; border-left: 2px solid var(--line); }
.tree li { margin: .5rem 0; }
.tree b { font-weight: 600; }
.kinds li, .rules li { padding: .35rem 0; }
.cols { display: grid; grid-template-columns: 1fr; gap: .25rem; }

/* источник */
.segs { list-style: none; padding: 0; font-size: .95rem; }
.segs li { padding: .2rem .4rem; border-radius: 4px; }
.segs li.cited { background: var(--mark); }
.segs .t { color: var(--faint); font-size: .8rem; font-variant-numeric: tabular-nums; margin-right: .35rem; }
.segs .no { color: var(--faint); font-size: .8rem; margin-right: .35rem; }
.segs .sp { color: var(--muted); }
.segs .refs { font-size: .8rem; margin-left: .35rem; }
:target { scroll-margin-top: 1rem; }
li:target { background: var(--mark); }

table.clients { border-collapse: collapse; width: 100%; font-size: .9rem; }
table.clients td, table.clients th { text-align: left; padding: .3rem .5rem .3rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
table.clients th { color: var(--muted); font-weight: 400; }
.wrap { overflow-x: auto; }
.errors li { color: var(--late); padding: .2rem 0; }

@media (min-width: 40rem) {
  .find { margin-top: .5rem; }
  .find input { width: 20rem; }
}