:root {
  --bg: #f6f7f9; --fg: #1d2330; --muted: #5d6676; --card: #fff; --line: #d9dde4;
  --accent: #1f5fbf; --warn-bg: #fff4d6; --warn-fg: #6b4a00; --err-bg: #fde8e8; --err-fg: #8a1c1c;
  --ok-bg: #e4f4e8; --ok-fg: #1d5a2e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c; --fg: #e6e9ef; --muted: #98a1b0; --card: #1d222a; --line: #333a46;
    --accent: #6ea3f2; --warn-bg: #3a2f10; --warn-fg: #f1d28a; --err-bg: #3d1c1c; --err-fg: #f4b0b0;
    --ok-bg: #173323; --ok-fg: #a8e0b9;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, sans-serif; }
a { color: var(--accent); }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
main { max-width: 72rem; margin: 0 auto; padding: 1rem; }

.top { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1rem; padding: .5rem 1rem;
  background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); }
.top nav { display: flex; flex-wrap: wrap; gap: .25rem .75rem; flex: 1; }
.top nav a { text-decoration: none; padding: .25rem 0; }
.tools { display: flex; align-items: center; gap: 1rem; margin-left: auto; }
form.inline { display: inline; margin: 0; }

button, .button { font: inherit; padding: .5rem 1rem; border: 0; border-radius: 6px; cursor: pointer;
  background: var(--accent); color: #fff; }
button.link { background: none; color: var(--accent); padding: 0; text-decoration: underline; }
input, select, textarea { font: inherit; padding: .5rem; border: 1px solid var(--line); border-radius: 6px;
  background: var(--card); color: var(--fg); width: 100%; max-width: 28rem; }
label { display: block; margin-bottom: .75rem; color: var(--muted); }
label input { display: block; margin-top: .25rem; }

.login { max-width: 24rem; margin: 3rem auto; background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; padding: 1.5rem; }
.error, .flash, .banner { padding: .5rem .75rem; border-radius: 6px; margin: 0 0 1rem; }
.error { background: var(--err-bg); color: var(--err-fg); }
.flash { background: var(--ok-bg); color: var(--ok-fg); }
.banner.warn { background: var(--warn-bg); color: var(--warn-fg); }

.cards { list-style: none; padding: 0; display: grid; gap: .75rem; grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr)); }
.cards a { display: block; padding: 1rem; background: var(--card); border: 1px solid var(--line);
  border-radius: 8px; text-decoration: none; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .4rem .6rem; border-bottom: 1px solid var(--line); }
@media (max-width: 40rem) { main { padding: .75rem; } .login { margin: 1rem auto; } }