:root {
  --bg: #0f1419;
  --panel: #151c24;
  --fg: #e7ecf1;
  --muted: #8b98a5;
  --line: #243040;
  --accent: #3d8bfd;
  --ok: #2f9e6b;
  --danger: #c44b4b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(1000px 500px at 0% 0%, #1a2a40 0%, transparent 50%),
    var(--bg);
  color: var(--fg);
}
.muted { color: var(--muted); }
.live-line { margin: 0.35rem 0 0.55rem; font-size: 0.85rem; }
.error { color: #ff8e8e; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
}
.top .muted { margin-left: 0.75rem; font-size: 0.9rem; }

.grid {
  display: grid;
  gap: 1.25rem;
  padding: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  max-width: 70rem;
  margin: 0 auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.1rem 1.2rem 1.25rem;
}
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}
.panel h2 { margin: 0; font-size: 1.15rem; font-weight: 650; }

.status-line { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.badge {
  font-size: 0.78rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge.on { color: #b6f0d0; border-color: #2f9e6b66; background: #2f9e6b22; }
.badge.off { color: #ffc9c9; border-color: #c44b4b66; background: #c44b4b22; }

.bar {
  height: 10px;
  background: #0c1218;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.75rem;
}
.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #2a6fd6, var(--accent));
  transition: width 0.35s ease;
}
.bar-label { margin: 0.45rem 0 0.85rem; font-size: 0.9rem; color: var(--muted); }

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem 1rem;
  margin: 0;
}
#panel-mail .stats {
  margin-top: 1.15rem;
}
.mail-schedule {
  margin: 0.85rem 0 0;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101820;
}
.mail-schedule-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.7rem;
}
.mail-schedule-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--fg);
}
.mail-schedule-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem 0.75rem;
}
.mail-schedule label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.75rem;
  color: var(--muted);
}
.mail-schedule input {
  width: 100%;
  padding: 0.45rem 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #0c1218;
  color: var(--fg);
  font: inherit;
  font-variant-numeric: tabular-nums;
}
.mail-schedule-actions {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.75rem;
}
.mail-schedule-hint {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.35;
  flex: 1;
}
#mail-schedule-msg { margin-top: 0.55rem; color: #b6f0d0; }

.stats div {
  border-top: 1px solid var(--line);
  padding-top: 0.45rem;
}
.stats dt {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
}
.stats dd {
  margin: 0.15rem 0 0;
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
}

button, .toggle {
  appearance: none;
  border: 1px solid var(--line);
  background: #1b2633;
  color: var(--fg);
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
  cursor: pointer;
  font: inherit;
}
button:hover, .toggle:hover { border-color: #3a516a; }
button.ghost { background: transparent; }
.toggle.ok { border-color: #2f9e6b66; }
.toggle.danger { border-color: #c44b4b66; }
button:disabled { opacity: 0.55; cursor: wait; }

body.auth {
  display: grid;
  place-items: center;
  padding: 1.5rem;
}
.auth-card {
  width: min(24rem, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.4rem 1.35rem 1.5rem;
  border-top: 3px solid var(--accent);
}
.auth-card h1 { margin: 0 0 0.25rem; font-size: 1.35rem; }
.stack { display: grid; gap: 0.85rem; margin-top: 1rem; }
.stack label { display: grid; gap: 0.35rem; font-size: 0.9rem; color: var(--muted); }
.stack input {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #0c1218;
  color: var(--fg);
  font: inherit;
}
.stack button {
  margin-top: 0.25rem;
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  font-weight: 600;
}

@media (max-width: 520px) {
  .stats { grid-template-columns: 1fr; }
  .mail-schedule-grid { grid-template-columns: 1fr; }
  .mail-schedule-actions { flex-direction: column; }
}