/* Tweaks on top of the Cayman theme + the custom nav + dashboard. */

/* ---- top nav ---- */
.a4c-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  align-items: baseline;
  padding: 0.75rem 1.5rem;
  margin: -1rem -1rem 1.5rem -1rem;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 6px;
  font-size: 0.95rem;
}
.a4c-nav a {
  color: #155799;
  text-decoration: none;
  font-weight: 500;
}
.a4c-nav a:hover { text-decoration: underline; }
.a4c-nav .a4c-nav-dashboard {
  margin-left: auto;
  font-weight: 600;
}
.a4c-nav .a4c-nav-github {
  font-weight: 500;
  color: #444;
}

/* ---- callout boxes ---- */
.a4c-callout {
  border-left: 4px solid #159957;
  padding: 0.75rem 1rem;
  margin: 1.25rem 0;
  background: #f3fbf5;
  border-radius: 4px;
}
.a4c-callout strong:first-child { color: #117a40; }
.a4c-callout.warn {
  border-color: #c9810c;
  background: #fdf7e8;
}
.a4c-callout.warn strong:first-child { color: #9a6308; }

/* ---- challenge grid on home / pentathlon pages ---- */
.a4c-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.a4c-grid > .card {
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  background: #ffffff;
}
.a4c-grid > .card h3 { margin-top: 0; }
.a4c-grid > .card .stat {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.85rem;
  color: #555;
}

/* ---- tables: nicer than the cayman default ---- */
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
}
th, td {
  border-bottom: 1px solid #d0d7de;
  padding: 0.4rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
thead th {
  background: #f6f8fa;
  border-bottom: 2px solid #d0d7de;
}