:root {
  --bg: #ffffff;
  --ink: #16181d;
  --muted: #6b7280;
  --rule: #e3e5e9;
  --rule-strong: #c9ccd3;
  --accent: #1f5fbf;        /* alliance blue */
  --accent-soft: #e8effa;
  --qual: #1f7a4d;
  --qual-soft: #e4f3ea;
  --row-hover: #f6f7f9;
  --seg-bg: #f3f4f6;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121418;
    --ink: #eceef2;
    --muted: #9aa1ad;
    --rule: #262a31;
    --rule-strong: #3a3f49;
    --accent: #6ea0ec;
    --accent-soft: #1a2638;
    --qual: #5fc48f;
    --qual-soft: #15301f;
    --row-hover: #1a1d23;
    --seg-bg: #1a1d23;
  }
}
:root[data-theme="dark"] {
  --bg: #121418;
  --ink: #eceef2;
  --muted: #9aa1ad;
  --rule: #262a31;
  --rule-strong: #3a3f49;
  --accent: #6ea0ec;
  --accent-soft: #1a2638;
  --qual: #5fc48f;
  --qual-soft: #15301f;
  --row-hover: #1a1d23;
  --seg-bg: #1a1d23;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
}
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
a { color: var(--accent); }
button { font: inherit; color: inherit; cursor: pointer; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }

/* header */
.top { border-bottom: 1px solid var(--rule-strong); padding-top: 40px; }
h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 800;
  font-stretch: 112%;
  letter-spacing: -0.02em;
  line-height: 1;
}
.sub { margin: 10px 0 0; color: var(--muted); font-size: 15px; }

/* section tabs */
.tabs { display: flex; gap: 4px; margin-top: 28px; margin-bottom: -1px; overflow-x: auto; }
.tab {
  background: none; border: 0; border-bottom: 3px solid transparent;
  padding: 10px 14px 12px; font-size: 17px; font-weight: 600; color: var(--muted);
  white-space: nowrap; border-radius: 0;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.tab .count { margin-left: 4px; }
.count { color: var(--muted); font-size: 14px; font-weight: 500; }

/* filter: two visible choices */
.controls { margin-top: 24px; }
.seg {
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  background: var(--seg-bg); padding: 6px; border-radius: 10px;
}
.seg-btn {
  text-align: left; background: transparent; border: 1px solid transparent;
  border-radius: 7px; padding: 10px 14px; color: var(--muted);
}
.seg-btn:hover { color: var(--ink); }
.seg-btn[aria-pressed="true"] {
  background: var(--bg); color: var(--ink); border-color: var(--rule-strong);
}
.seg-title { display: block; font-weight: 700; font-size: 16px; }
.seg-title::before {
  content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  border: 2px solid currentColor; margin-right: 8px; vertical-align: 1px; opacity: .55;
}
.seg-btn[aria-pressed="true"] .seg-title::before { background: var(--accent); border-color: var(--accent); opacity: 1; }
.seg-desc { display: block; font-size: 13.5px; line-height: 1.35; margin-top: 3px; color: var(--muted); }

/* boards */
.panel { margin-top: 20px; }
table { width: 100%; border-collapse: collapse; }
thead th {
  text-align: left; font-weight: 500; color: var(--muted); font-size: 13px;
  padding: 8px 10px; border-bottom: 1px solid var(--rule-strong);
  white-space: nowrap;
}
tbody td { padding: 11px 10px; border-bottom: 1px solid var(--rule); vertical-align: middle; }
tbody tr:hover { background: var(--row-hover); }
th.rank, td.rank { width: 44px; color: var(--muted); padding-left: 4px; }
td.rank { font-weight: 500; }
th.num, td.num { text-align: right; width: 84px; }
td.num { color: var(--muted); }
th.total, td.total { font-weight: 700; color: var(--ink); width: 92px; font-size: 18px; }
td.team .n { font-weight: 700; font-size: 17px; }
td.team .name { color: var(--muted); margin-left: 8px; }
td.org { color: var(--muted); }
tr.is-qualified td.team .n::after {
  content: "qualified";
  display: inline-block; margin-left: 10px; vertical-align: 2px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.02em;
  color: var(--qual); background: var(--qual-soft);
  padding: 2px 7px; border-radius: 999px;
}
tr.is-top td.rank, tr.is-top td.total { color: var(--accent); }
td.empty { color: var(--muted); padding: 32px 10px; text-align: center; }

/* qualified panel */
.qualified { margin-top: 28px; }
.lede { margin: 0 0 24px; color: var(--muted); max-width: 64ch; }
.q-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.q-grid h3 { margin: 0 0 6px; font-size: 18px; font-weight: 700; padding-bottom: 8px; border-bottom: 1px solid var(--rule-strong); }
.q-grid h3 .count { margin-left: 6px; }
.q-grid ul { list-style: none; margin: 0; padding: 0; }
.q-grid li { padding: 10px 0; border-bottom: 1px solid var(--rule); }
.q-grid li .n { font-weight: 700; }
.q-grid li .name { color: var(--muted); margin-left: 8px; }
.q-grid li .times {
  float: right; font-size: 12px; font-weight: 600; color: var(--qual); background: var(--qual-soft);
  padding: 2px 8px; border-radius: 999px; margin-top: 2px;
}
.q-grid li .how { display: block; font-size: 14px; color: var(--muted); margin-top: 2px; }
.q-grid li .note-tag {
  display: inline-block; margin-top: 6px; font-size: 13px; font-weight: 600; color: var(--accent);
  background: var(--accent-soft); padding: 2px 8px; border-radius: 6px;
}
.q-grid li .how b { color: var(--qual); font-weight: 600; }
.q-grid li.none { color: var(--muted); border-bottom: 0; }

/* footer */
.foot { margin: 56px auto 48px; color: var(--muted); font-size: 14px; }
.foot p { margin: 6px 0; max-width: 70ch; }

/* small screens */
@media (max-width: 640px) {
  .top { padding-top: 28px; }
  .tabs { margin-top: 20px; gap: 0; }
  .tab { padding: 10px 10px 12px; font-size: 15px; }
  .tab .long { display: none; }
  .seg { grid-template-columns: 1fr; }
  table { table-layout: fixed; }
  th.org, td.org { display: none; }
  th.team, td.team { width: auto; overflow-wrap: anywhere; }
  thead th, tbody td { padding-left: 6px; padding-right: 6px; }
  th.rank, td.rank { width: 30px; padding-left: 2px; }
  th.num, td.num { width: 54px; }
  th.total, td.total { width: 60px; font-size: 17px; padding-right: 2px; }
  td.team .name { display: block; margin-left: 0; font-size: 14px; }
  tr.is-qualified td.team .n::after { display: block; width: fit-content; margin: 4px 0 2px; }
  .q-grid { grid-template-columns: 1fr; gap: 20px; }
}
@media (prefers-reduced-motion: no-preference) {
  tbody tr, .seg-btn, .tab { transition: background 120ms ease, color 120ms ease, border-color 120ms ease; }
}