:root {
  color-scheme: light;
  --ink: #1c2430;
  --muted: #5c6b7a;
  --line: #d9d3c7;
  --paper: #f6f3ec;
  --card: #fffdf8;
  --accent: #0f6e6b;
  --danger: #9d2c2c;
  --ok: #1f7a4d;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.45 "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
.top, nav, main { padding: 1rem; }
.top { display: flex; justify-content: space-between; gap: 1rem; align-items: center; background: #17212b; color: #f6f3ec; }
.brand { margin: 0; font-weight: 700; }
.notice, .muted { color: var(--muted); margin: 0.2rem 0 0; }
.top .notice { color: #d5ece9; }
nav { display: flex; flex-wrap: wrap; gap: 0.5rem; border-bottom: 1px solid var(--line); }
nav a { color: var(--accent); text-decoration: none; padding: 0.35rem 0.6rem; border-radius: 999px; background: #e7f3f2; }
main { max-width: 1100px; margin: 0 auto; }
.grid { display: grid; gap: 0.8rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.card, form, table { background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.card, form { padding: 1rem; }
label { display: grid; gap: 0.25rem; margin-bottom: 0.7rem; font-size: 0.92rem; }
input, select, button { font: inherit; padding: 0.55rem 0.7rem; border-radius: 8px; border: 1px solid var(--line); }
button, .button { background: var(--accent); color: white; border: 0; cursor: pointer; text-decoration: none; display: inline-block; }
button.secondary { background: #e7eeec; color: var(--ink); }
.row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
th, td { text-align: left; padding: 0.55rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
.error { color: var(--danger); }
.ok { color: var(--ok); }
pre { white-space: pre-wrap; overflow-x: auto; background: #17212b; color: #f6f3ec; padding: 0.8rem; border-radius: 8px; }
@media (max-width: 700px) {
  .top { align-items: flex-start; flex-direction: column; }
}