:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2129;
  --border: #2d333b;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #2ea043;
  --accent-2: #238636;
  --warn: #d29922;
  --danger: #f85149;
  --info: #58a6ff;
  --radius: 10px;
  font-size: 15px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

/* ---- auth pages (login / setup) ---- */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 380px;
}
.auth-card h1 {
  font-size: 1.3rem;
  margin-bottom: 0.25rem;
}
.auth-card .sub {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}
.auth-card img.totp-qr {
  display: block;
  margin: 0.75rem auto;
  border-radius: 8px;
  background: #fff;
  padding: 8px;
}

/* ---- forms ---- */
label { display: block; font-size: 0.8rem; color: var(--muted); margin: 0.75rem 0 0.25rem; }
input, select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.55rem 0.7rem;
  font-size: 0.95rem;
}
input:focus { outline: none; border-color: var(--info); }
button {
  background: var(--accent-2);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1rem;
}
button:hover { background: var(--accent); }
button.secondary { background: var(--panel-2); border: 1px solid var(--border); }
button.secondary:hover { background: var(--border); }
button.danger { background: transparent; border: 1px solid var(--danger); color: var(--danger); }
button.danger:hover { background: var(--danger); color: #fff; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.error-msg { color: var(--danger); font-size: 0.85rem; margin-top: 0.75rem; min-height: 1.2em; }
.ok-msg { color: var(--accent); font-size: 0.85rem; margin-top: 0.75rem; min-height: 1.2em; }

/* ---- dashboard layout ---- */
header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
header.topbar h1 { font-size: 1.05rem; }
header.topbar .right { display: flex; align-items: center; gap: 0.75rem; }
header.topbar .user { color: var(--muted); font-size: 0.85rem; }
header.topbar button { margin-top: 0; padding: 0.35rem 0.8rem; font-size: 0.8rem; }

main.grid {
  display: grid;
  gap: 1rem;
  padding: 1rem 1.25rem 2rem;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  max-width: 1400px;
  margin: 0 auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
}
.panel h2 {
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.panel h2 .actions { display: flex; gap: 0.5rem; }
.panel h2 button { margin-top: 0; padding: 0.25rem 0.6rem; font-size: 0.75rem; }
.panel.wide { grid-column: 1 / -1; }

/* ---- status badge + QR ---- */
.badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge.open { background: rgba(46,160,67,.15); color: var(--accent); }
.badge.qr { background: rgba(88,166,255,.15); color: var(--info); }
.badge.connecting { background: rgba(210,153,34,.15); color: var(--warn); }
.badge.close, .badge.logged-out { background: rgba(248,81,73,.15); color: var(--danger); }

.qr-box { text-align: center; padding: 0.5rem 0 0.25rem; }
.qr-box img { border-radius: 8px; background: #fff; padding: 10px; max-width: 260px; width: 100%; }
.qr-box p { color: var(--muted); font-size: 0.8rem; margin-top: 0.5rem; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 1rem; font-size: 0.85rem; }
.kv dt { color: var(--muted); }
.kv dd { text-align: right; font-variant-numeric: tabular-nums; }

/* ---- stats ---- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(90px, 1fr)); gap: 0.6rem; margin-bottom: 0.9rem; }
.stat {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
}
.stat .n { font-size: 1.25rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .l { font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat .n.ok { color: var(--accent); }
.stat .n.bad { color: var(--danger); }
.stat .n.warn { color: var(--warn); }

.quota-bar { background: var(--panel-2); border-radius: 999px; height: 10px; overflow: hidden; margin: 0.25rem 0 0.2rem; }
.quota-bar > div { height: 100%; background: var(--accent-2); border-radius: 999px; transition: width .4s; }
.quota-label { font-size: 0.75rem; color: var(--muted); }

/* ---- tables ---- */
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { text-align: left; padding: 0.45rem 0.5rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; }
tr:last-child td { border-bottom: none; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.status-pill { font-size: 0.72rem; font-weight: 600; padding: 0.1rem 0.5rem; border-radius: 999px; }
.status-pill.sent { background: rgba(46,160,67,.15); color: var(--accent); }
.status-pill.queued, .status-pill.sending { background: rgba(88,166,255,.15); color: var(--info); }
.status-pill.failed { background: rgba(248,81,73,.15); color: var(--danger); }
.status-pill.expired { background: rgba(210,153,34,.15); color: var(--warn); }

/* toggle switch */
.switch { position: relative; display: inline-block; width: 38px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .track {
  position: absolute; inset: 0; cursor: pointer;
  background: var(--border); border-radius: 999px; transition: .2s;
}
.switch .track::before {
  content: ""; position: absolute; height: 16px; width: 16px; left: 3px; top: 3px;
  background: var(--muted); border-radius: 50%; transition: .2s;
}
.switch input:checked + .track { background: var(--accent-2); }
.switch input:checked + .track::before { transform: translateX(16px); background: #fff; }

/* chart */
.chart-wrap { overflow-x: auto; }
.chart-wrap svg { display: block; width: 100%; height: auto; }

.muted { color: var(--muted); font-size: 0.82rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.8rem; }
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.warmup-row { display: flex; gap: 0.5rem; align-items: center; margin-top: 0.4rem; }
.warmup-row input { width: 90px; }
.warmup-row .x { color: var(--muted); cursor: pointer; }

/* admins + account */
.row-actions { white-space: nowrap; }
.row-actions button { margin-right: 0.4rem; padding: 0.25rem 0.6rem; }
.pill-you {
  display: inline-block; margin-left: 0.5rem; padding: 0.05rem 0.4rem;
  border-radius: 6px; font-size: 0.7rem; background: var(--panel-2); color: var(--muted);
}
hr.sep { border: 0; border-top: 1px solid var(--border); margin: 1.2rem 0; }