:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666;
  --border: #e2e2e2;
  --accent: #1f6feb;
  --row-alt: #f7f9fc;
  --soon: #b54708;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.5;
}

header, main, footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

header { padding-top: 2.5rem; }

h1 { margin: 0 0 .25rem; font-size: 1.9rem; }
.sub { margin: 0 0 .5rem; color: var(--muted); max-width: 60ch; }
.updated { margin: 0; color: var(--muted); font-size: .85rem; }

h2 { margin: 2rem 0 .75rem; font-size: 1.3rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
}

th, td {
  text-align: left;
  padding: .6rem .75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

thead th {
  border-bottom: 2px solid var(--border);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--muted);
}

tbody tr:nth-child(even) { background: var(--row-alt); }

td a { color: var(--accent); text-decoration: none; font-weight: 600; }
td a:hover { text-decoration: underline; }

.soon { color: var(--soon); font-weight: 600; }

.passed { text-decoration: line-through; color: var(--muted); }

.empty { color: var(--muted); font-style: italic; }

details { margin-top: 1rem; }
summary { cursor: pointer; font-weight: 600; color: var(--muted); }
details[open] summary { margin-bottom: .75rem; }

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .85rem;
}
footer code { background: var(--row-alt); padding: .1rem .3rem; border-radius: 3px; }

@media (max-width: 640px) {
  th:nth-child(5), td:nth-child(5) { display: none; }
}