:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1c2430;
  --muted: #5d6878;
  --line: #dde1e7;
  --accent: #1f6feb;
  --danger: #b42318;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --panel: #1a2029;
    --text: #e7ebf0;
    --muted: #9aa5b4;
    --line: #2c3440;
    --accent: #6ea8fe;
    --danger: #ff8a7a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, sans-serif; }
h1 { font-size: 1.3rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 2rem 0 .75rem; }
.top { display: flex; justify-content: space-between; align-items: center; padding: 1rem; background: var(--panel); border-bottom: 1px solid var(--line); }
.page { max-width: 960px; margin: 0 auto; padding: 0 1rem 3rem; }
.login { max-width: 340px; margin: 12vh auto 0; padding: 1.5rem; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.login form { display: grid; gap: .9rem; margin-top: 1rem; }
label { display: grid; gap: .25rem; color: var(--muted); font-size: .9rem; }
input { padding: .55rem .6rem; font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; }
button { padding: .55rem .8rem; font: inherit; color: #fff; background: var(--accent); border: 0; border-radius: 6px; cursor: pointer; }
button.link { padding: 0; color: var(--accent); background: none; }
.error { color: var(--danger); margin: .75rem 0 0; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: .75rem; margin: 0; }
.tiles div { padding: .75rem 1rem; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
.tiles dt { color: var(--muted); font-size: .85rem; }
.tiles dd { margin: 0; font-size: 1.4rem; font-weight: 600; }
table { width: 100%; border-collapse: collapse; background: var(--panel); }
th, td { padding: .5rem .75rem; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: .85rem; font-weight: 500; }