:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #16191d;
  --muted: #4f5866;
  --line: #d6dae1;
  --accent: #1d4ed8;
  --accent-text: #ffffff;
  --neg: #b42318;
  --focus: #b45309;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --surface: #1a1d23;
    --text: #eceef1;
    --muted: #a8b0bc;
    --line: #343a44;
    --accent: #8ab4ff;
    --accent-text: #0b1530;
    --neg: #ff8a80;
    --focus: #fbbf24;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
[hidden] { display: none !important; }
main, .top, footer { max-width: 960px; margin: 0 auto; padding: 0 16px; }
.top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding-top: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
.top nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 14px; }
h1 { font-size: clamp(26px, 5vw, 36px); line-height: 1.15; margin: 28px 0 8px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
h3 { font-size: 18px; margin: 20px 0 6px; }
h4 { font-size: 15px; margin: 0 0 6px; }
.lede { color: var(--muted); margin: 0 0 20px; max-width: 70ch; }
.small { font-size: 13px; color: var(--muted); }

.tool form { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; display: grid; gap: 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; font-weight: 600; }
input[type=number], input[type=text], input[type=email], input[type=date], input[type=time], select, textarea {
  font: inherit; font-weight: 400; width: 100%; min-width: 0; padding: 8px 10px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text);
}
textarea { resize: vertical; line-height: 1.4; }
fieldset { border: 1px solid var(--line); border-radius: 10px; margin: 0; padding: 10px 12px 12px; min-width: 0; }
legend { font-weight: 700; padding: 0 4px; font-size: 14px; }
.divisions { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.division { display: grid; gap: 8px; align-content: start; }
.when { display: grid; gap: 12px; }
.days { border: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.days legend { padding: 0; margin-bottom: 6px; }
.seg { display: inline-flex; flex-direction: row; align-items: center; font-weight: 500; gap: 6px; border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; cursor: pointer; font-size: 14px; }
.seg:has(input:checked) { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.skip-row { display: flex; flex-wrap: wrap; align-items: end; gap: 8px 12px; }
.skip-row label { flex: 1 1 180px; }
.skips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.skips:empty { display: none; }
.skips li { border: 1px solid var(--line); border-radius: 999px; padding: 2px 4px 2px 10px; font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }
.chip-x { background: transparent; color: var(--text); padding: 0 8px; font-size: 18px; line-height: 1.2; }

button { font: inherit; font-weight: 600; background: var(--accent); color: var(--accent-text); border: 1px solid var(--accent); border-radius: 8px; padding: 9px 14px; cursor: pointer; justify-self: start; }
button:disabled { opacity: .45; cursor: not-allowed; }
button.ghost { background: transparent; color: var(--accent); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 6px; }
.share-link { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin-top: 8px; }
.shared-note { font-weight: 600; }
.issue { color: var(--neg); font-weight: 600; }

.out { margin-top: 12px; }
.division-out { margin-top: 12px; }
.fair { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; margin-bottom: 12px; }
.fair summary { cursor: pointer; }
.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; margin-top: 8px; }
td, th { padding: 5px 6px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.fair td { text-align: right; font-variant-numeric: tabular-nums; }
.rounds { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 10px; }
.round { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; break-inside: avoid; }
.at { font-weight: 400; color: var(--muted); }
h4 .at { margin-left: 4px; }
.games { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.games li { display: grid; grid-template-columns: auto 1fr; gap: 0 10px; align-items: baseline; }
.court { font-size: 13px; color: var(--muted); white-space: nowrap; }
.match { overflow-wrap: anywhere; }
.side { font-weight: 600; }
.vs { color: var(--muted); font-size: 13px; }
.score { display: none; }
.sitting { margin: 8px 0 0; font-size: 14px; color: var(--muted); }
.print-only { display: none; }
.chart th[scope=row] { width: 3em; }

.pro { margin-top: 28px; background: var(--surface); border: 2px solid var(--accent); border-radius: 12px; padding: 16px; }
.pro h2 { margin-top: 0; }
.pro form { display: grid; gap: 10px; max-width: 480px; }
.pro .hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.status { font-weight: 600; margin: 8px 0 0; }
.status:empty { display: none; }

.guide ul.cols { columns: 2 220px; padding-left: 18px; }
.faq details { border-bottom: 1px solid var(--line); padding: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
footer { margin-top: 48px; padding-top: 16px; padding-bottom: 32px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }

@media print {
  :root { --bg: #fff; --surface: #fff; --text: #000; --muted: #333; --line: #999; color-scheme: light; }
  .top, .lede, .tool form, .actions, .ics-hint, .share-link, .shared-note, .pro, .guide, .faq, footer, .fair { display: none !important; }
  h1 { display: none; }
  .print-only { display: block; }
  .print-title { font-size: 20px; margin-bottom: 8px; }
  .rounds { grid-template-columns: 1fr 1fr; gap: 6px; }
  .round { border-color: #999; padding: 6px 8px; }
  .games li { grid-template-columns: auto 1fr auto; }
  .score { display: inline; font-variant-numeric: tabular-nums; }
}