:root {
  --bg: #0f1419; --panel: #1a2029; --card: #242b35;
  --fg: #e9edf1; --muted: #8a94a3; --accent: #4cc2ff; --danger: #ff5252;
  --ok: #41d47e; --off: #9aa3ad;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif; }
a { color: var(--accent); text-decoration: none; }

.topbar { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; background: var(--panel); flex-wrap: wrap; gap: 12px; }
.topbar h1 { font-size: 18px; margin: 0; }
.header-meta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.header-meta .stat { display: flex; gap: 6px; align-items: baseline; }
.header-meta .label, .card .label, .pitem .label { color: var(--muted); font-size: 12px; }
.badge { padding: 2px 8px; border-radius: 10px; font-size: 12px; background: var(--off); color: #000; }
.badge.online { background: var(--ok); }
.badge.offline { background: var(--off); }
.alias { font-weight: bold; }

.dash { padding: 16px; max-width: 1280px; margin: 0 auto; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.card { background: var(--card); padding: 16px; border-radius: 12px; }
.card .value { font-size: 40px; font-weight: 700; line-height: 1.1; margin-top: 4px; }
.card .unit { color: var(--muted); font-size: 12px; }

.states { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-top: 12px; }
.state-card { background: var(--card); padding: 16px; border-radius: 12px; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.state-badge { padding: 6px 14px; border-radius: 10px; font-weight: 700; font-size: 18px; }
.state-badge.on { background: var(--ok); color: #000; }
.state-badge.off { background: var(--off); color: #000; }
.state-badge.unknown { background: #3a4555; color: var(--muted); }

.placeholder-panel { margin-top: 16px; background: var(--card); padding: 12px 16px; border-radius: 12px; }
.placeholder-panel summary { cursor: pointer; color: var(--muted); }
.placeholder-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 8px; margin-top: 10px; }
.pitem { display: flex; flex-direction: column; gap: 4px; background: var(--panel); padding: 8px; border-radius: 8px; }
.pitem button, .pitem input { background: var(--panel); color: var(--muted); border: 1px solid #333c48; padding: 4px 6px; border-radius: 6px; }
.small { font-size: 11px; }
.muted { color: var(--muted); }

.chart-wrap { margin-top: 20px; background: var(--card); padding: 12px 16px; border-radius: 12px; }
.chart-wrap h2 { font-size: 14px; color: var(--muted); margin: 0 0 8px 0; }

button { background: var(--accent); color: #000; border: none; padding: 6px 12px; border-radius: 8px; cursor: pointer; }
button:disabled { background: #3a4555; color: var(--muted); cursor: not-allowed; }
button.danger { background: var(--danger); color: #fff; }
select, input[type="text"], input[type="password"], input[type="number"], input[type="datetime-local"] {
  background: var(--panel); color: var(--fg); border: 1px solid #333c48; padding: 6px 8px; border-radius: 8px;
}

.tabs { display: flex; gap: 4px; padding: 8px 20px; background: var(--panel); }
.tabs button { background: transparent; color: var(--muted); }
.tabs button.active { background: var(--card); color: var(--fg); }

.admin { padding: 16px; max-width: 1280px; margin: 0 auto; }
.admin table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.admin th, .admin td { padding: 8px; border-bottom: 1px solid #2a3140; text-align: left; }

dialog { background: var(--panel); color: var(--fg); border: 1px solid #2a3140; border-radius: 12px; padding: 16px; min-width: 320px; }
dialog form { display: grid; gap: 10px; }
dialog label { display: grid; gap: 4px; font-size: 13px; }
dialog menu { display: flex; gap: 8px; justify-content: flex-end; padding: 0; margin: 0; }

.auth-page { display: flex; min-height: 100vh; align-items: center; justify-content: center; }
.auth-card { background: var(--panel); padding: 24px; border-radius: 12px; width: min(360px, 90vw); display: grid; gap: 10px; }
.auth-card form { display: grid; gap: 10px; }
.auth-card label { display: grid; gap: 4px; font-size: 13px; }
.err { color: var(--danger); font-size: 13px; }

@media (max-width: 640px) {
  .card .value { font-size: 32px; }
  .topbar h1 { font-size: 16px; }
}