:root {
  --bg: #f6f7f9; --panel: #fff; --text: #1f2430; --muted: #6b7385; --border: #e1e4ea;
  --accent: #5b4bdb; --accent-soft: #eeebff; --danger: #c43d3d; --mark: #fff0a8; --code: #f0f2f6;
  --ok: #1f8a4c;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14161c; --panel: #1b1e26; --text: #e4e7ee; --muted: #8d95a8; --border: #2b3040;
    --accent: #8f83ff; --accent-soft: #272446; --mark: #5a4d10; --code: #242836; --danger: #ef7676; --ok: #5bd18b; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); text-decoration: none; } a:hover { text-decoration: underline; }
h1 { font-size: 1.7rem; margin: .2rem 0 .6rem; } h2 { font-size: 1.25rem; } h3 { font-size: 1rem; margin: 0 0 .4rem; }
code, pre { background: var(--code); border-radius: 4px; font: 13px ui-monospace, Menlo, Consolas, monospace; }
code { padding: .1em .35em; } pre { padding: .7rem .9rem; overflow: auto; } pre code { padding: 0; background: none; }
kbd { background: var(--code); border: 1px solid var(--border); border-radius: 4px; padding: 0 .3em; font-size: .75em; }
mark { background: var(--mark); color: inherit; border-radius: 2px; padding: 0 1px; }
.muted { color: var(--muted); } .lead { font-size: 1.1rem; }
.app { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); padding: 1rem; overflow-y: auto; position: sticky; top: 0; height: 100vh; }
.brand { font-weight: 700; font-size: 1.2rem; display: block; margin-bottom: .8rem; color: var(--text); }
.side-search input { width: 100%; padding: .45rem .6rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }
.side-nav { display: flex; flex-direction: column; gap: .15rem; margin: .8rem 0; }
.side-nav a:not(.btn) { padding: .25rem .4rem; border-radius: 5px; color: var(--text); } .side-nav a:not(.btn):hover { background: var(--accent-soft); text-decoration: none; }
.side-nav .btn { margin-bottom: .4rem; text-align: center; }
.sidebar h4 { text-transform: uppercase; font-size: .7rem; letter-spacing: .06em; color: var(--muted); margin: 1rem 0 .3rem; }
.side-list { list-style: none; margin: 0; padding: 0; } .side-list li { padding: .1rem 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.count { color: var(--muted); font-size: .8em; } .side-foot { margin-top: 1.5rem; color: var(--muted); font-size: .85rem; }
.main { min-width: 0; padding: 0 1.5rem 2rem; }
.topbar { display: flex; gap: .6rem; align-items: center; padding: .7rem 0; }
.icon-btn { display: none; background: none; border: 1px solid var(--border); border-radius: 6px; padding: .2rem .55rem; color: var(--text); font-size: 1.1rem; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 1.5rem; align-items: start; }
.wide .content-grid { grid-template-columns: 1fr; } .wide .right:empty { display: none; }
.center { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 1.2rem 1.6rem; min-width: 0; }
.right { display: flex; flex-direction: column; gap: .9rem; position: sticky; top: .5rem; max-height: calc(100vh - 1rem); overflow-y: auto; }
.right:empty { display: none; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: .8rem 1rem; }
.backlink { border-top: 1px solid var(--border); padding: .4rem 0; } .backlink:first-of-type { border-top: 0; }
.snippet { margin: .15rem 0; color: var(--muted); font-size: .88rem; }
.outline { list-style: none; margin: 0; padding: 0; font-size: .9rem; } .outline .lvl2 { padding-left: .8rem; } .outline .lvl3 { padding-left: 1.6rem; } .outline .lvl4 { padding-left: 2.4rem; }
.btn { display: inline-block; padding: .45rem .9rem; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); color: var(--text); cursor: pointer; font: inherit; }
.btn:hover { background: var(--accent-soft); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; } .btn.danger { color: var(--danger); }
.btn.small { padding: .25rem .6rem; font-size: .88rem; } .btn.tiny { padding: .1rem .45rem; font-size: .8rem; }
.linklike { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; font: inherit; }
form.inline { display: inline; }
.note-head { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; align-items: flex-start; }
.actions { display: flex; gap: .35rem; flex-wrap: wrap; } .meta { color: var(--muted); font-size: .88rem; margin: 0 0 .5rem; }
.pill { background: var(--accent-soft); color: var(--accent); border-radius: 99px; padding: 0 .5rem; font-size: .75rem; }
.tag { background: var(--accent-soft); border-radius: 99px; padding: 0 .5rem; font-size: .88em; }
.wikilink { border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); } .wikilink:hover { text-decoration: none; background: var(--accent-soft); }
.wikilink.dangling { color: var(--danger); border-bottom-style: dashed; }
.prose { overflow-wrap: anywhere; } .prose h1, .prose h2, .prose h3 { margin-top: 1.4em; }
.prose blockquote { margin: 1em 0; padding: .1em 1em; border-left: 3px solid var(--accent); color: var(--muted); }
.prose table { border-collapse: collapse; } .prose th, .prose td { border: 1px solid var(--border); padding: .3rem .6rem; }
.prose img { max-width: 100%; border-radius: 6px; } .prose ul.contains-task-list { list-style: none; padding-left: .5rem; }
.embed { border-left: 3px solid var(--accent); background: var(--bg); border-radius: 0 8px 8px 0; padding: .3rem 1rem; margin: 1em 0; }
.embed-title { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; } .embed-cycle, .embed-missing { color: var(--danger); font-size: .9rem; }
.title-input { width: 100%; font-size: 1.5rem; font-weight: 600; padding: .4rem .6rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }
.editor-bar { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; margin: .6rem 0; }
.editor-wrap { position: relative; }
textarea#body { width: 100%; min-height: 55vh; padding: .8rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); font: 14px/1.6 ui-monospace, Menlo, Consolas, monospace; resize: vertical; }
.preview { min-height: 55vh; border: 1px solid var(--border); border-radius: 6px; padding: .8rem 1.2rem; }
.suggest { position: absolute; z-index: 20; list-style: none; margin: 0; padding: .25rem; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 6px 24px rgba(0,0,0,.18); min-width: 240px; max-height: 260px; overflow-y: auto; }
.suggest li { padding: .3rem .6rem; border-radius: 5px; cursor: pointer; } .suggest li.active, .suggest li:hover { background: var(--accent-soft); }
.messages { margin-bottom: .6rem; } .msg { padding: .5rem .8rem; border-radius: 6px; background: var(--accent-soft); margin: .3rem 0; }
.msg.error { color: var(--danger); } .msg.success { color: var(--ok); }
.table { border-collapse: collapse; width: 100%; } .table th, .table td { text-align: left; padding: .45rem .6rem; border-bottom: 1px solid var(--border); }
.note-list, .results { list-style: none; padding: 0; } .note-list li, .results li { padding: .35rem 0; border-bottom: 1px solid var(--border); }
.search-big { display: flex; gap: .5rem; } .search-big input { flex: 1; padding: .55rem .8rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); font: inherit; }
.calendar { border-collapse: collapse; } .calendar th, .calendar td { width: 3.2rem; height: 3rem; text-align: center; border: 1px solid var(--border); }
.calendar td a { display: block; line-height: 3rem; color: var(--text); } .calendar td.out a { color: var(--muted); opacity: .5; }
.calendar td.has { background: var(--accent-soft); font-weight: 700; } .calendar td.today { outline: 2px solid var(--accent); outline-offset: -2px; }
.diff table.diff { width: 100%; font: 12.5px ui-monospace, Menlo, monospace; border-collapse: collapse; }
.diff td { padding: 1px 6px; white-space: pre-wrap; } .diff .diff_header { color: var(--muted); text-align: right; }
.diff .diff_add { background: color-mix(in srgb, var(--ok) 28%, transparent); } .diff .diff_sub { background: color-mix(in srgb, var(--danger) 28%, transparent); } .diff .diff_chg { background: var(--mark); }
.graph-canvas { width: 100%; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); touch-action: none; }
.graph-canvas.big { height: 70vh; } .graph-canvas.small { height: 240px; }
.legend { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: .5rem; font-size: .85rem; } .legend i { display: inline-block; width: .7rem; height: .7rem; border-radius: 50%; margin-right: .3rem; }
.tag-tree.big { list-style: none; padding: 0; line-height: 2; }
.switcher { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: flex; justify-content: center; align-items: flex-start; padding-top: 12vh; z-index: 50; }
.switcher[hidden] { display: none; }
.switcher-box { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; width: min(560px, 92vw); padding: .8rem; }
.switcher-box input { width: 100%; font: inherit; font-size: 1.1rem; padding: .5rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }
.switcher-box ul { list-style: none; margin: .5rem 0 0; padding: 0; max-height: 50vh; overflow: auto; }
.switcher-box li { padding: .4rem .6rem; border-radius: 6px; cursor: pointer; } .switcher-box li.active { background: var(--accent-soft); }
.auth { max-width: 360px; margin: 10vh auto; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem 2rem; }
.auth input { width: 100%; padding: .4rem; } .auth .helptext { display: block; font-size: .8rem; color: var(--muted); }
@media (max-width: 1100px) { .content-grid { grid-template-columns: 1fr; } .right { position: static; max-height: none; } }
@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 30; width: 270px; transform: translateX(-100%); transition: transform .2s; }
  .sidebar.open { transform: none; }
  .icon-btn { display: inline-block; } .main { padding: 0 .8rem 2rem; } .center { padding: .9rem 1rem; }
}