:root {
  --bg: #f6f7f9; --fg: #16181d; --muted: #5d6470; --card: #ffffff; --line: #d9dde3;
  --accent: #2743d8; --accent-fg: #ffffff; --bad: #b3261e; --good: #1b7f3b;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1115; --fg: #e8eaee; --muted: #9aa1ad; --card: #171a20; --line: #2a2f38; --accent: #7d93ff; --accent-fg: #0f1115; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main.card { max-width: 46rem; margin: 3rem auto; padding: 2rem; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
h1 { margin-top: 0; font-size: 1.5rem; }
h2 { font-size: 1.15rem; margin-top: 2rem; }
label { display: block; margin: .75rem 0 .25rem; font-weight: 600; }
input[type=email], input[type=password], input[type=text] { width: 100%; padding: .6rem .7rem; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg); font-size: 1rem; }
button { margin-top: 1rem; padding: .55rem 1rem; border: 0; border-radius: 8px; background: var(--accent); color: var(--accent-fg); font-weight: 600; cursor: pointer; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
form.inline { display: inline; }
form.inline button { margin: 0 .25rem 0 0; padding: .3rem .6rem; font-size: .85rem; }
.muted { color: var(--muted); font-size: .9rem; }
.status { min-height: 1.5rem; margin-top: 1rem; }
.status.bad { color: var(--bad); }
.status.good { color: var(--good); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
code.big { display: block; padding: 1rem; font-size: 1.2rem; word-break: break-all; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .4rem; border-bottom: 1px solid var(--line); vertical-align: top; }
nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; margin-bottom: 1.5rem; }
nav form.inline button { margin-left: auto; }
.stats { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.stats div { padding: .75rem 1rem; border: 1px solid var(--line); border-radius: 8px; }
ul.plain { list-style: none; padding: 0; }
.tabs { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.tabs a { padding: .35rem .75rem; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--fg); }
.tabs a.on { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
#ts { margin-top: 1rem; }
.hidden { display: none; }