:root {
  --bg: #0f1115; --surface: #171a21; --surface-2: #1f232c; --border: #2a2f3a;
  --text: #e6e8ec; --muted: #9aa3b2; --accent: #4f8cff;
  --ok: #2fbf71; --warn: #f0b429; --bad: #ef4d56; --radius: 12px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; }
[hidden] { display: none !important; }
a { color: var(--accent); }
h1 { font-size: 22px; margin: 0 0 6px; } h2 { font-size: 17px; margin: 0 0 12px; } h3 { font-size: 14px; margin: 0 0 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.muted { color: var(--muted); } .small { font-size: 13px; } .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
.center-screen { min-height: 100vh; display: grid; place-items: center; }
.spinner { width: 34px; height: 34px; border-radius: 50%; border: 3px solid var(--border); border-top-color: var(--accent); animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.auth-screen { min-height: 100vh; display: grid; place-items: center; padding: 20px 16px; }
.auth-card { width: 100%; max-width: 400px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 24px; display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
input, select { width: 100%; background: var(--surface-2); color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 11px 12px; font-size: 16px; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.form-msg { margin: 0; min-height: 1.2em; color: var(--bad); font-size: 14px; }
.qr-box { display: grid; justify-items: center; gap: 8px; background: #fff; border-radius: 12px; padding: 12px; }
.qr-box img { width: 200px; height: 200px; }
.secret { color: #111; font-size: 12px; word-break: break-all; text-align: center; }

.btn { appearance: none; border: 1px solid var(--border); background: var(--surface-2); color: var(--text); border-radius: 10px; padding: 10px 14px; font-size: 14px; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: #3a4150; } .btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.warn { background: transparent; border-color: var(--warn); color: var(--warn); }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 10px; font-size: 13px; }

.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: rgba(15,17,21,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.tabs { display: flex; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs a { color: var(--muted); text-decoration: none; padding: 8px 12px; border-radius: 8px; font-weight: 600; font-size: 14px; white-space: nowrap; }
.tabs a.active { color: var(--text); background: var(--surface-2); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); display: inline-block; flex: 0 0 auto; }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); } .dot.bad { background: var(--bad); }

.banner { margin: 12px 16px 0; padding: 12px 14px; border-radius: var(--radius); background: rgba(240,180,41,.12); border: 1px solid rgba(240,180,41,.4); color: #ffd98a; }
.banner.bad { background: rgba(239,77,86,.12); border-color: rgba(239,77,86,.45); color: #ffb3b8; }
.content { padding: 16px; max-width: 1200px; margin: 0 auto; display: block; }
.tab { display: grid; gap: 16px; }

.status-hero { display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.status-hero .big { font-size: 20px; font-weight: 700; }
.status-hero.ok { border-color: rgba(47,191,113,.5); } .status-hero.warn { border-color: rgba(240,180,41,.55); } .status-hero.bad { border-color: rgba(239,77,86,.6); }
.issues { margin: 6px 0 0; padding-left: 18px; color: var(--muted); font-size: 14px; }

.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; min-width: 0; }
.metric .label { color: var(--muted); font-size: 13px; }
.metric .value { font-size: 24px; font-weight: 700; margin: 2px 0; font-variant-numeric: tabular-nums; }
.metric .sub { color: var(--muted); font-size: 12.5px; }
.bar { height: 6px; background: var(--surface-2); border-radius: 4px; overflow: hidden; margin-top: 8px; }
.bar > span { display: block; height: 100%; background: var(--ok); }
.bar > span.warn { background: var(--warn); } .bar > span.bad { background: var(--bad); }
.value.ok { color: var(--ok); } .value.warn { color: var(--warn); } .value.bad { color: var(--bad); }

.section-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.section-head h2 { margin: 0; }
.list { display: grid; gap: 8px; }
.row { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--surface-2); border-radius: 10px; min-width: 0; flex-wrap: wrap; }
.row .grow { flex: 1; min-width: 150px; overflow: hidden; }
.row .title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .meta { color: var(--muted); font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.row .btns { display: flex; gap: 6px; flex-wrap: wrap; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--surface); border: 1px solid var(--border); color: var(--muted); }
.pill.ok { color: var(--ok); border-color: rgba(47,191,113,.4); } .pill.bad { color: var(--bad); border-color: rgba(239,77,86,.4); } .pill.warn { color: var(--warn); border-color: rgba(240,180,41,.4); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.inline-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; }
.form-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.checks { display: flex; gap: 12px; flex-wrap: wrap; }
.checks label { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: 14px; }
.checks input { width: auto; }
.countdown { font-size: 40px; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1; }
details summary { cursor: pointer; color: var(--muted); padding: 6px 0; }
.search { max-width: 260px; }

.modal { position: fixed; inset: 0; z-index: 50; background: rgba(0,0,0,.6); display: grid; place-items: center; padding: 16px; }
.modal-card { width: 100%; max-width: 440px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 20px; display: grid; gap: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 60; max-width: calc(100% - 32px); background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; box-shadow: 0 10px 30px rgba(0,0,0,.5); }
.toast.ok { border-color: rgba(47,191,113,.6); } .toast.bad { border-color: rgba(239,77,86,.6); }

@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; padding: 10px 12px 0; }
  .tabs { order: 3; flex-basis: 100%; padding-bottom: 6px; }
  .content { padding: 12px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric .value { font-size: 20px; }
  .inline-form { grid-template-columns: 1fr; }
  .search { max-width: none; }
}