/* Zürich aus erster Hand — site styles. Light by default, dark when the system asks for it. */
:root {
  --bg: #f8f8f6;
  --panel: #ffffff;
  --panel-2: #efeff0;
  --border: #dfdfe2;
  --text: #1c1d22;
  --muted: #62646c;
  --accent: #1d4fa0;
  --link: #1a4a96;
  --kreis: #1d4fa0;
  /* chart roles (reference palette, slots 1–2) */
  --surface-1: #fcfcfb;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --tick: #6f6e69;
  --max: 1120px;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131417;
    --panel: #1b1c20;
    --panel-2: #24262b;
    --border: #33353b;
    --text: #e8e8ea;
    --muted: #a3a5ad;
    --accent: #7ea6ec;
    --link: #93b5f0;
    --kreis: #93b5f0;
    --surface-1: #1a1a19;
    --series-1: #3987e5;
    --series-2: #d95926;
    --grid: #2c2c2a;
    --axis: #383835;
    --tick: #a19f97;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.65 var(--sans); }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.wrap.narrow { max-width: 780px; }

.site-header { border-bottom: 1px solid var(--border); background: var(--panel); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; font: 700 20px/1 var(--serif); color: var(--text); text-decoration: none; }
.site-nav { display: flex; gap: 2px; flex-wrap: wrap; align-items: center; }
.site-nav a { color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 6px; font-size: 15px; }
.site-nav a:hover { color: var(--text); background: var(--panel-2); }
.site-nav a.active { color: var(--text); font-weight: 600; }
.site-nav a.lang { border: 1px solid var(--border); margin-left: 6px; }
.lang-hint { background: var(--panel-2); font-size: 15px; padding: 6px 0; }

.masthead { padding: 40px 0 24px; }
.masthead h1 { font: 700 clamp(30px, 6vw, 46px)/1.1 var(--serif); margin: 0 0 12px; letter-spacing: -0.01em; }
.tagline { color: var(--muted); max-width: 660px; margin: 0; font-size: 18px; }

.home { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; padding-bottom: 48px; }
@media (max-width: 860px) { .home { grid-template-columns: 1fr; } }

.post-card { padding: 20px 0; border-bottom: 1px solid var(--border); }
.post-card:first-child { padding-top: 4px; }
.post-card h2 { font: 700 23px/1.28 var(--serif); margin: 4px 0 8px; }
.post-card h2 a { color: var(--text); text-decoration: none; }
.post-card h2 a:hover { color: var(--link); }
.post-card .lead { margin: 0 0 10px; }
.post-meta { font-size: 14px; color: var(--muted); }
.post-tags { display: flex; gap: 6px; flex-wrap: wrap; }

.pill { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .02em; padding: 1px 9px; border-radius: 999px;
        border: 1px solid var(--border); color: var(--muted); text-decoration: none; line-height: 1.7; }
a.pill:hover { color: var(--text); border-color: var(--muted); }
.pill.kind { background: var(--panel-2); color: var(--text); border-color: transparent; }
.pill.kreis { color: var(--kreis); border-color: currentColor; }

.sidebar h2 { font: 700 13px/1 var(--sans); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 6px 0 12px; }
.kreis-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin: 0 0 26px; }
.kreis-cell { display: flex; flex-direction: column; align-items: center; padding: 8px 4px; border: 1px solid var(--border);
              border-radius: 8px; background: var(--panel); text-decoration: none; color: var(--text); }
.kreis-cell strong { font: 700 20px/1.1 var(--serif); }
.kreis-cell span { font-size: 12px; color: var(--muted); }
.kreis-cell:hover { border-color: var(--kreis); }
.kreis-cell.city { grid-column: 1 / -1; flex-direction: row; justify-content: space-between; padding: 8px 12px; }
.kreis-cell.city strong { font: 600 15px/1.4 var(--sans); }
main > .kreis-grid { grid-template-columns: repeat(6, 1fr); margin-top: 8px; }
@media (max-width: 600px) { main > .kreis-grid { grid-template-columns: repeat(4, 1fr); } }

.topic-list { list-style: none; padding: 0; margin: 0 0 24px; }
.topic-list li { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--border); }
.topic-list a { color: var(--text); text-decoration: none; }
.topic-list a:hover { color: var(--link); }
.count { color: var(--muted); font-size: 14px; font-weight: 400; }
.stats-card { display: grid; gap: 4px; margin: 0 0 20px; padding: 16px 18px; border-radius: 10px; text-decoration: none;
              background: var(--panel); border: 1px solid var(--border); border-left: 4px solid var(--accent); color: var(--text); }
.stats-card strong { font: 700 18px/1.3 var(--serif); }
.stats-card span { color: var(--muted); font-size: 15px; }
.stats-card:hover strong { color: var(--link); }
.note { background: var(--panel-2); border-radius: 10px; padding: 16px 18px; font-size: 15px; }
.note h3 { margin: 0 0 6px; font-size: 15px; }
.note p { margin: 0; color: var(--muted); }

.post { padding: 34px 0 12px; }
.post-header h1 { font: 700 clamp(27px, 5vw, 36px)/1.22 var(--serif); margin: 6px 0 14px; letter-spacing: -0.01em; }
.post-header .lead { font-size: 19px; color: var(--muted); margin: 0 0 14px; }
.post-header { margin-bottom: 22px; }
.prose h2 { font: 700 22px/1.3 var(--serif); margin: 30px 0 8px; }
.prose h3 { font-size: 18px; margin: 24px 0 6px; }
.prose p, .prose li { overflow-wrap: break-word; }
.prose blockquote { margin: 18px 0; padding: 4px 18px; border-left: 3px solid var(--border); color: var(--muted); }
.next { background: var(--panel); border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 8px;
        padding: 12px 18px; margin: 26px 0 0; font-size: 16px; }
.next p { margin: 4px 0 0; }
.next-label { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.table-wrap { overflow-x: auto; margin: 16px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-weight: 600; background: var(--panel-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.sources { margin-top: 30px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 15px; }
.sources h4 { margin: 0 0 6px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.sources ul { margin: 0; padding-left: 18px; }
.sources li { overflow-wrap: anywhere; }
.post-nav { display: flex; justify-content: space-between; gap: 20px; padding: 20px 0 50px; font-size: 15px; }
.post-nav a { max-width: 48%; }

.page-header { padding: 34px 0 12px; }
.page-header h1 { font: 700 34px/1.2 var(--serif); margin: 4px 0 10px; }
.page-header .lead { color: var(--muted); }
.kicker { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.topic-block { padding: 14px 0; border-bottom: 1px solid var(--border); }
.topic-block h2 { font: 700 21px/1.3 var(--serif); margin: 0 0 4px; }
.topic-block h2 a { color: var(--text); text-decoration: none; }
.topic-block ul { margin: 0; padding-left: 20px; font-size: 15px; }
.month-block h2 { font: 700 20px/1.3 var(--serif); margin: 24px 0 8px; }
.archive { list-style: none; padding: 0; margin: 0; }
.archive li { padding: 7px 0; border-bottom: 1px solid var(--border); }
.arch-date { display: inline-block; min-width: 34px; color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.more { margin: 20px 0; }
.empty { color: var(--muted); }

footer { border-top: 1px solid var(--border); background: var(--panel); padding: 24px 0 36px; font-size: 14px; color: var(--muted); }
footer p { max-width: 760px; }

/* Charts (statistics page): thin marks, hairline grid, text in ink colours, never series colours */
.viz { margin: 22px 0 30px; padding: 16px 16px 10px; background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; }
.viz-title { font-weight: 600; font-size: 15.5px; margin: 0 0 8px; }
.viz-source { font-size: 13px; color: var(--muted); margin: 6px 0 4px; }
.chart { width: 100%; height: auto; display: block; font-family: var(--sans); }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .grid.base { stroke: var(--axis); }
.chart .tick { fill: var(--tick); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart .note { fill: var(--text); font-size: 12.5px; font-weight: 600; paint-order: stroke; stroke: var(--surface-1); stroke-width: 3px; }
.chart .line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .line.s1 { stroke: var(--series-1); }
.chart .line.s2 { stroke: var(--series-2); }
.chart .dot { stroke: var(--surface-1); stroke-width: 2; }
.chart .dot.s1 { fill: var(--series-1); }
.chart .dot.s2 { fill: var(--series-2); }
.chart .bar { fill: var(--series-1); }
.chart .bar.partial { fill: url(#hatch); }
.chart .hatch-bg { fill: var(--surface-1); }
.chart .hatch-line { stroke: var(--series-1); stroke-width: 3; }
.chart .hit { fill: transparent; }
.chart .hit:hover { fill: var(--text); fill-opacity: .05; }
.chart circle.hit:hover { fill-opacity: .15; }
.legend { display: flex; gap: 16px; font-size: 13.5px; color: var(--muted); margin: 0 0 4px; }
.legend .swatch { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 6px; }
.legend .swatch.s1 { background: var(--series-1); }
.legend .swatch.s2 { background: var(--series-2); }
.data-table summary { cursor: pointer; font-size: 13.5px; color: var(--link); }
.data-table table { font-size: 13.5px; }
.data-table .table-wrap { max-height: 320px; overflow: auto; }
.stats .stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
@media (forced-colors: active) { .chart .bar, .chart .line { forced-color-adjust: auto; } }