/* Testline Pool Care: a fictional test business for DeskOnDuty. One small stylesheet, no framework. */
:root {
  --bg: #f7fafc;
  --surface: #ffffff;
  --text: #1a2a33;
  --muted: #4a5d68;
  --accent: #0b6e8a;
  --line: #d5e2e8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1a20;
    --surface: #16242c;
    --text: #e6eef2;
    --muted: #a9bcc6;
    --accent: #6cc4dc;
    --line: #2a3d47;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 20px; }
.brand { font-size: 1.3rem; font-weight: 700; color: var(--text); text-decoration: none; }
nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 10px 0 0; }
nav a { color: var(--accent); }
nav a[aria-current="page"] { font-weight: 700; color: var(--text); }
main { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; margin-top: 18px; padding: 8px 20px 20px; }
h1 { font-size: 1.7rem; line-height: 1.25; }
h2 { font-size: 1.25rem; margin-top: 1.8em; border-top: 1px solid var(--line); padding-top: 1em; }
h3 { font-size: 1.05rem; margin-bottom: 0.2em; }
a { color: var(--accent); }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
footer { color: var(--muted); font-size: 0.9rem; padding-top: 16px; padding-bottom: 32px; }