:root {
  color-scheme: dark;
  --bg: #0b1020;
  --bg-alt: #11182b;
  --panel: #141c30;
  --panel-2: #0f1627;
  --border: rgba(255,255,255,0.08);
  --text: #e7ecf7;
  --muted: #94a0b8;
  --accent: #39a0ff;
  --good: #3ddc97;
  --warn: #f5b942;
  --bad: #ff6b6b;
  --radius: 18px;
  --shadow: 0 20px 50px rgba(0,0,0,0.35);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(57,160,255,0.12), transparent 34%),
    linear-gradient(180deg, var(--bg), #070b14 55%, #060810);
  color: var(--text);
  min-height: 100vh;
}
a { color: inherit; }
.hidden { display: none !important; }
.app-shell { max-width: 1600px; margin: 0 auto; padding: 24px; }
.topbar, .panel, .login-card {
  border: 1px solid var(--border);
  background: rgba(16,23,41,0.86);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}
.topbar {
  display: flex; justify-content: space-between; gap: 16px; align-items: center;
  padding: 20px 24px; border-radius: calc(var(--radius) + 6px); margin-bottom: 20px;
}
.eyebrow { text-transform: uppercase; letter-spacing: 0.26em; font-size: 11px; color: var(--accent); font-weight: 700; margin-bottom: 8px; }
h1,h2,h3,p { margin: 0; }
h1 { font-size: 28px; line-height: 1.1; }
.topbar p, .panel-header p, .login-card p { color: var(--muted); margin-top: 6px; }
.topbar-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.dashboard {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  grid-template-areas:
    "hero map"
    "chart devices"
    "alerts alerts";
  gap: 20px;
}
.hero { grid-area: hero; }
.map-panel { grid-area: map; }
.chart-panel { grid-area: chart; }
.devices-panel { grid-area: devices; }
.alerts-panel { grid-area: alerts; }
.panel {
  border-radius: var(--radius);
  padding: 20px;
}
.panel-header {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 18px;
}
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
  background: rgba(255,255,255,0.06); color: var(--text);
  border: 1px solid var(--border);
}
.badge-good { background: rgba(61,220,151,0.12); color: var(--good); }
.badge-warn { background: rgba(245,185,66,0.12); color: var(--warn); }
.badge-bad { background: rgba(255,107,107,0.12); color: var(--bad); }
.select, .btn, input {
  border-radius: 12px; border: 1px solid var(--border); background: rgba(255,255,255,0.04);
  color: var(--text); padding: 12px 14px; font: inherit;
}
.btn { cursor: pointer; transition: transform .15s ease, border-color .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); border-color: rgba(57,160,255,0.55); }
.btn-primary { background: linear-gradient(180deg, #1f6cff, #0e54cf); border-color: rgba(57,160,255,0.5); }
.btn-ghost { background: rgba(255,255,255,0.03); }
.device-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.metric {
  padding: 14px; border-radius: 14px; background: rgba(255,255,255,0.035); border: 1px solid var(--border);
}
.metric-group {
  display: grid;
  gap: 8px;
}
.metric-group .label {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.metric-group .value {
  font-size: 14px;
  line-height: 1.5;
}
.detection-card {
  display: grid;
  gap: 10px;
}
.detection-thumb {
  width: 100%;
  max-width: 240px;
  border-radius: 12px;
  border: 1px solid var(--border);
  object-fit: cover;
}
.metric .label { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.metric .value { font-size: 20px; font-weight: 700; }
.metric .unit { font-size: 12px; color: var(--muted); margin-left: 4px; }
.map { height: 360px; border-radius: 14px; overflow: hidden; border: 1px solid var(--border); }
.fallback { height: 360px; display: grid; place-items: center; color: var(--muted); border: 1px dashed var(--border); border-radius: 14px; }
.device-list, .list { display: grid; gap: 10px; }
.device-item, .alert-item {
  padding: 14px; border-radius: 14px; background: rgba(255,255,255,0.035); border: 1px solid var(--border);
}
.device-item { display: flex; justify-content: space-between; gap: 10px; align-items: center; cursor: pointer; }
.device-item.active { border-color: rgba(57,160,255,0.6); box-shadow: 0 0 0 1px rgba(57,160,255,0.18) inset; }
.device-sub { color: var(--muted); font-size: 12px; margin-top: 4px; }
.alert-item .title { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.login-page { display: grid; place-items: center; padding: 24px; }
.login-card { width: min(440px, 100%); padding: 28px; border-radius: 24px; }
.form { display: grid; gap: 14px; margin-top: 20px; }
.form label { display: grid; gap: 8px; color: var(--muted); font-size: 13px; }
.form input { width: 100%; }
.error { color: #ffadad; font-size: 13px; }
canvas { width: 100% !important; }
@media (max-width: 1100px) {
  .dashboard { grid-template-columns: 1fr; grid-template-areas: "hero" "map" "chart" "devices" "alerts"; }
  .device-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metrics-grid { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: stretch; }
}
@media (max-width: 640px) {
  .app-shell { padding: 14px; }
  .device-grid { grid-template-columns: 1fr; }
  .panel, .topbar { padding: 16px; }
}