:root {
  --brand: #0b5fff;
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #1a1f2b;
  --muted: #5d6675;
  --border: #d9dee7;
  --danger: #c0392b;
  --ok: #1e7f4f;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1218; --card: #171b24; --text: #e8ecf3; --muted: #9aa4b5; --border: #2a3140; }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text);
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--brand); }
header.top {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .75rem 1rem; background: var(--card); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; text-decoration: none; color: var(--text); }
.brand img { height: 28px; }
nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--text); }
main { flex: 1; width: 100%; max-width: 880px; margin: 0 auto; padding: 1.5rem 1rem; }
footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem; color: var(--muted); font-size: .85rem; border-top: 1px solid var(--border); flex-wrap: wrap; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; }
.card.narrow { max-width: 540px; margin: 2rem auto; }
.center { text-align: center; }
h1 { margin: 0 0 .5rem; font-size: 1.5rem; }
h2 { margin: 1.75rem 0 .5rem; font-size: 1.1rem; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
label { display: block; margin: .9rem 0; font-weight: 600; font-size: .95rem; }
label input, label textarea, input[type=text], input[type=password], input[type=email], input[type=number], textarea {
  display: block; width: 100%; margin-top: .3rem; padding: .6rem .7rem; font: inherit;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text);
}
textarea.secret, pre.secret, #new-token, #share-link { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; word-break: break-all; }
pre.secret { background: var(--bg); padding: .7rem; border-radius: 8px; overflow: auto; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
@media (max-width: 560px) { .grid2 { grid-template-columns: 1fr; } }
.checks label.check, label.check { font-weight: 500; display: flex; gap: .5rem; align-items: center; }
label.check input { width: auto; margin: 0; }
.withbtn { display: flex; gap: .5rem; align-items: stretch; margin-top: .3rem; }
.withbtn input, .withbtn textarea { flex: 1; margin: 0; }
button, .button {
  font: inherit; font-weight: 600; padding: .6rem 1rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); cursor: pointer; text-decoration: none; display: inline-block;
}
button.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
button.big { font-size: 1.1rem; padding: .9rem 1.6rem; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; margin-top: 1rem; }
button.link { background: none; border: none; padding: 0; color: var(--brand); font-weight: 500; cursor: pointer; }
.danger-text { color: var(--danger); }
form.inline, details.inline { display: inline; }
.flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; border: 1px solid var(--border); }
.flash-error { border-color: var(--danger); color: var(--danger); }
.flash-success { border-color: var(--ok); color: var(--ok); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: .5rem .4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
tr.bad td { color: var(--danger); }
tr.warn td { color: #b7791f; }
[hidden] { display: none !important; }
label select { display: block; width: 100%; margin-top: .3rem; padding: .6rem .7rem; font: inherit; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); }
label input[type=color] { height: 2.6rem; padding: .2rem; }
label .small { display: block; font-weight: 400; margin-top: .2rem; }
td.ua { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
td.actions { white-space: nowrap; }
td.actions > * + * { margin-left: .6rem; }
.tabs a { margin-right: 1rem; text-decoration: none; padding-bottom: .2rem; }
.tabs a.active { border-bottom: 2px solid var(--brand); }
dl.meta { display: grid; grid-template-columns: max-content 1fr; gap: .3rem 1rem; margin: 1rem 0; }
dl.meta dt { color: var(--muted); }
dl.meta dd { margin: 0; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin: 1rem 0; }
.stats div { background: var(--bg); border-radius: 10px; padding: 1rem; text-align: center; }
.stats strong { display: block; font-size: 1.6rem; }
.stats span { color: var(--muted); font-size: .85rem; }
code { background: var(--bg); padding: .1rem .3rem; border-radius: 4px; }