:root {
  --bg: #0b1220;
  --panel: #121b2d;
  --panel-2: #0f1727;
  --line: rgba(255,255,255,0.08);
  --text: #edf2ff;
  --muted: #9fb1d1;
  --green: #16c784;
  --orange: #ff9f0a;
  --red: #ff453a;
  --blue: #3d8bfd;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: radial-gradient(circle at top, #14213b 0, var(--bg) 38%); color: var(--text); font-family: Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.app-shell { display: grid; grid-template-columns: 360px 1fr; min-height: 100vh; gap: 18px; padding: 18px; }
.sidebar, .main-content, .detail-wrap { display: flex; flex-direction: column; gap: 18px; }
.brand-card, .panel-card { background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02)); border: 1px solid var(--line); border-radius: 22px; backdrop-filter: blur(10px); box-shadow: 0 12px 32px rgba(0,0,0,0.24); }
.brand-card { padding: 22px; display: flex; justify-content: space-between; align-items: flex-start; }
.eyebrow { font-size: 11px; letter-spacing: 0.18em; color: #87a8ff; margin-bottom: 8px; }
h1, h2, h3 { margin: 0; font-weight: 700; }
.brand-card h1 { font-size: 24px; line-height: 1.25; }
.live-dot { background: rgba(22,199,132,0.15); color: var(--green); border: 1px solid rgba(22,199,132,0.3); border-radius: 999px; padding: 9px 12px; font-size: 12px; font-weight: 700; }
.summary-grid { padding: 16px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.summary-item { background: rgba(255,255,255,0.03); border: 1px solid var(--line); border-radius: 16px; padding: 14px; }
.summary-item span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.summary-item strong { font-size: 24px; }
.search-card, .device-list-card, .detail-card, .chart-card, .map-wrap { padding: 16px; }
#searchInput { width: 100%; background: rgba(255,255,255,0.04); color: var(--text); border: 1px solid var(--line); border-radius: 14px; padding: 14px; font-size: 14px; }
.card-title-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.ghost-btn, .ghost-link { background: rgba(255,255,255,0.04); color: var(--text); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; cursor: pointer; font-size: 13px; }
.device-list { display: flex; flex-direction: column; gap: 10px; max-height: calc(100vh - 350px); overflow: auto; padding-right: 6px; }
.device-item { border: 1px solid var(--line); border-radius: 16px; padding: 14px; background: rgba(255,255,255,0.03); cursor: pointer; transition: 0.2s ease; }
.device-item:hover, .device-item.active { transform: translateY(-1px); border-color: rgba(61,139,253,0.5); background: rgba(61,139,253,0.08); }
.device-item-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.device-name { font-size: 15px; font-weight: 700; }
.device-sub { color: var(--muted); font-size: 12px; }
.mini-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 10px; }
.mini-metrics div { padding: 8px 10px; border-radius: 12px; background: rgba(255,255,255,0.03); font-size: 12px; }
.status-badge { display: inline-flex; align-items: center; justify-content: center; min-width: 70px; border-radius: 999px; padding: 8px 12px; font-weight: 700; font-size: 13px; }
.badge-stable { background: rgba(22,199,132,0.15); color: var(--green); border: 1px solid rgba(22,199,132,0.35); }
.badge-caution { background: rgba(255,159,10,0.16); color: var(--orange); border: 1px solid rgba(255,159,10,0.35); }
.badge-warning { background: rgba(255,69,58,0.15); color: var(--red); border: 1px solid rgba(255,69,58,0.35); }
.main-content { display: grid; grid-template-columns: minmax(500px, 1.2fr) minmax(460px, 0.8fr); gap: 18px; }
.full-height { min-height: calc(100vh - 36px); }
.map-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.map-legend { display: flex; gap: 12px; font-size: 12px; color: var(--muted); }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 5px; }
.dot.stable { background: var(--green); }
.dot.caution { background: var(--orange); }
.dot.warning { background: var(--red); }
#map { width: 100%; height: calc(100vh - 120px); border-radius: 18px; background: linear-gradient(135deg, #13203a, #0b1220); }
.no-maps-key #map::before { content: 'config.php에 Google Maps API Key를 입력하세요.'; display: flex; align-items: center; justify-content: center; height: 100%; color: var(--muted); }
.detail-card { min-height: 420px; }
.empty-state { min-height: 320px; display: flex; align-items: center; justify-content: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 18px; }
.detail-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 14px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
.metric-card, .sub-card { border: 1px solid var(--line); background: rgba(255,255,255,0.03); border-radius: 16px; padding: 14px; }
.metric-card span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.metric-card strong { font-size: 20px; }
.sub-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sub-grid.single { grid-template-columns: 1fr; margin-top: 12px; }
.sub-card-title { font-size: 14px; font-weight: 700; margin-bottom: 12px; }
.weather-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.weather-grid .weather-item { border-radius: 12px; background: rgba(255,255,255,0.03); padding: 10px; }
.weather-item span { display: block; color: var(--muted); font-size: 12px; }
.weather-item strong { font-size: 17px; display: block; margin-top: 4px; }
.camera-frame { aspect-ratio: 16 / 9; border-radius: 16px; overflow: hidden; background: #0b1220; }
.camera-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ai-box { color: #d9e2ff; line-height: 1.65; }
.ai-box ul { margin: 10px 0 0 18px; padding: 0; }
.chart-card canvas { width: 100%; background: rgba(255,255,255,0.02); border-radius: 14px; }
.device-page-body { padding: 18px; }
.device-page-wrap { max-width: 1400px; margin: 0 auto; }
.device-page-card { padding: 18px; }
@media (max-width: 1400px) {
  .main-content { grid-template-columns: 1fr; }
  .full-height { min-height: 520px; }
  #map { height: 520px; }
}
@media (max-width: 960px) {
  .app-shell { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .sub-grid { grid-template-columns: 1fr; }
}