:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel2: #1e222b;
  --line: #2a2f3a;
  --fg: #e6e9ef;
  --muted: #98a2b3;
  --brand: #4f8cff;
  --ok: #35c07a;
  --bad: #ff6b6b;
  --warn: #f0b429;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: #0b0d11; padding: 1px 6px; border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.muted { color: var(--muted); }
.warn { color: var(--warn); }
.ok { color: var(--ok); }
.bad { color: var(--bad); }

.nav {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  padding: 12px 22px; background: var(--panel); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.nav .brand { font-weight: 700; }
.nav nav { display: flex; gap: 16px; flex-wrap: wrap; }
.nav nav a { color: var(--fg); opacity: .8; }
.nav nav a:hover { opacity: 1; text-decoration: none; }
.nav .who { margin-left: auto; display: flex; align-items: center; gap: 10px; color: var(--muted); }

main { max-width: 1080px; margin: 0 auto; padding: 22px; }
h1 { font-size: 22px; margin: 10px 0 18px; }
h2 { font-size: 16px; margin: 0 0 14px; color: var(--muted); font-weight: 600; }

.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 18px 20px; margin-bottom: 18px;
}

label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
input, select {
  width: 100%; margin-top: 5px; padding: 9px 11px; border-radius: 7px;
  border: 1px solid var(--line); background: var(--panel2); color: var(--fg); font-size: 14px;
}
input:focus, select:focus { outline: none; border-color: var(--brand); }
input[type=checkbox] { width: auto; margin: 0 6px 0 0; vertical-align: middle; }
label.switch { display: flex; align-items: center; color: var(--fg); font-size: 14px; }

button {
  padding: 8px 14px; border-radius: 7px; border: 1px solid var(--line);
  background: var(--panel2); color: var(--fg); cursor: pointer; font-size: 14px;
}
button:hover { border-color: var(--brand); }
button.primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
button.danger { color: var(--bad); border-color: #4a2527; }
button.link { background: none; border: none; padding: 0; color: var(--brand); }
a.btn { display: inline-block; padding: 8px 14px; border-radius: 7px; border: 1px solid var(--line); color: var(--fg); }
a.btn:hover { border-color: var(--brand); text-decoration: none; }

form.inline { display: inline; }
.grid-form { display: grid; gap: 12px; }
.grid-form label { margin-bottom: 0; }
.grid-form button { justify-self: start; }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }
.alert.ok { background: #12271d; color: var(--ok); border: 1px solid #1f3d2e; }
.alert.err { background: #2a1618; color: var(--bad); border: 1px solid #4a2527; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
td.ops { white-space: nowrap; display: flex; gap: 6px; align-items: center; }
.ellip { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

ul.tips { margin: 0; padding-left: 20px; }
ul.tips li { margin-bottom: 8px; color: var(--fg); }

.card.login { max-width: 380px; margin: 8vh auto 0; }
.card.login h1 { text-align: center; }
.card.login button { width: 100%; margin-top: 8px; }

.center-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 22px; }
.center-card { max-width: 420px; text-align: center; }
.big-emoji { font-size: 42px; }
code.big { font-size: 20px; padding: 8px 14px; display: inline-block; }

@media (max-width: 620px) {
  .nav { gap: 10px; }
  .nav .who { margin-left: 0; }
  td.ops { flex-wrap: wrap; }
}

.host-cell { white-space: nowrap; }
.copyable { cursor: pointer; border-bottom: 1px dashed var(--line); }
.copyable:hover { color: var(--brand); border-bottom-color: var(--brand); }
.copy-btn { margin-left: 8px; padding: 4px 10px; font-size: 12px; }