:root {
  --bg: #0F1B2E;
  --panel: #152439;
  --panel-alt: #101D30;
  --border: #26406B;
  --border-strong: #37568C;
  --text: #F2F5FA;
  --text-muted: #7488AC;
  --text-dim: #4F6690;
  --amber: #FFC069;
  --teal: #5EEAD4;
  --green: #4FE0A0;
  --blue: #63B3FF;
  --red: #FF6B6F;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
  padding: 0;
}

.wrap { padding: 20px 26px 24px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand .logo { color: var(--amber); font-size: 20px; }
.brand .name { font-weight: 700; font-size: 19px; letter-spacing: 0.4px; }
.brand .sub { color: var(--text-muted); font-size: 12px; margin-left: 4px; }

.pill {
  font-size: 11px;
  padding: 5px 12px;
  border-radius: 5px;
  display: inline-block;
}
.pill.green { background: rgba(79,224,160,0.12); border: 1px solid rgba(79,224,160,0.4); color: var(--green); }
.pill.blue { background: rgba(99,179,255,0.12); border: 1px solid rgba(99,179,255,0.4); color: var(--blue); }
.pill.danger { background: rgba(255,107,111,0.12); border: 1px solid rgba(255,107,111,0.4); color: var(--red); }

.cols { display: grid; grid-template-columns: 1fr 1.05fr; gap: 14px; }

.section-tag {
  display: flex; align-items: center; gap: 8px; margin-bottom: 10px;
}
.section-tag .num {
  background: #1E3357; color: var(--amber); font-size: 10px;
  padding: 2px 7px; border-radius: 4px; font-family: var(--font-mono);
}
.section-tag .label { font-size: 13px; font-weight: 600; }
.section-tag.blue .num { color: var(--blue); }

.stat-row { display: grid; gap: 10px; margin-bottom: 10px; }
.stat-row.two { grid-template-columns: 1fr 1fr; }
.stat-row.three { grid-template-columns: 1fr 1fr 1fr; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.card.highlight { border: 2px solid var(--amber); }
.card .k { color: var(--text-muted); font-size: 11px; margin-bottom: 6px; }
.card .v { font-family: var(--font-mono); font-size: 26px; }
.card .u { font-size: 11px; color: var(--text-muted); margin-left: 3px; }

.gauge-card { text-align: center; padding: 12px 16px 6px; margin-bottom: 10px; }
.gauge-num { font-family: var(--font-mono); font-size: 26px; font-weight: 700; }

.chart-card { padding: 14px 16px; }

.flow-card { padding: 20px 18px 22px; }
.flow-row { display: flex; align-items: center; justify-content: space-between; }
.flow-node { text-align: center; }
.flow-icon {
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin: 0 auto 7px;
}
.flow-line { flex: 1; height: 2px; margin: 0 8px; border-top: 2px dashed; }
.flow-val { font-family: var(--font-mono); font-size: 13px; }
.flow-sub { color: var(--text-muted); font-size: 10px; margin-top: 2px; }

.log-card { margin-top: 12px; overflow-x: auto; }
.log-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.log-title { color: var(--text-muted); font-size: 11px; }
.log-download { color: var(--blue); font-size: 11px; text-decoration: none; }

table.logtable { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 11px; }
table.logtable th { text-align: left; color: var(--text-muted); font-weight: 400; padding: 4px 8px; }
table.logtable td { padding: 5px 8px; color: var(--text); border-top: 1px solid var(--border); }
.err-low { color: var(--green); }
.err-mid { color: var(--amber); }
.err-high { color: var(--red); }

.device-strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin-top: 12px; }
.dev {
  background: var(--panel-alt); border: 1px solid var(--border); border-radius: 7px;
  padding: 9px 6px; text-align: center;
}
.dev.alert { border-color: var(--red); }
.dev-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin: 0 auto 5px; }
.dev-dot.red { background: var(--red); }
.dev-name { font-size: 10px; }

/* v8 additions */
body {
  background:
    linear-gradient(#1A2E4D 1px, transparent 1px) 0 0 / 100% 24px,
    linear-gradient(90deg, #1A2E4D 1px, transparent 1px) 0 0 / 24px 100%,
    var(--bg);
  background-attachment: fixed;
}

.brand-block { margin-bottom: 10px; }
.brand { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.brand .logo { color: var(--amber); font-size: 20px; }
.brand .name { font-weight: 700; font-size: 19px; letter-spacing: 0.4px; }

.weather-strip {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 7px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  overflow-x: auto;
  white-space: nowrap;
}
.w-icon { font-size: 15px; }
.w-temp { font-weight: 600; font-size: 13px; }
.w-desc { color: var(--text-muted); font-size: 11px; }
.w-sep { color: var(--text-dim); font-size: 10px; }
.w-chip { color: var(--text-muted); font-size: 10px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.tabs { display: flex; gap: 4px; }
.tab {
  color: var(--text-muted);
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 5px;
  text-decoration: none;
}
.tab.active { color: var(--amber); background: #1E3357; border: 1px solid var(--amber); }
.tab.disabled { color: var(--text-dim); cursor: default; }
.tab:not(.active):not(.disabled):hover { color: var(--text); }

.diagram-card {
  position: relative;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 12px;
  overflow: hidden;
}
.diagram-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0.3; }
.diagram-title { position: relative; color: var(--text-muted); font-size: 11px; letter-spacing: 0.6px; margin-bottom: 10px; }
.diagram-svg { position: relative; width: 100%; height: 120px; }

.cols3 { display: grid; grid-template-columns: 1fr 1.15fr 0.85fr; gap: 12px; }

.section-tag { margin-bottom: 8px; }
.section-tag .label { color: var(--text-muted); font-size: 11px; letter-spacing: 0.8px; font-weight: 600; }

.gauge-card { text-align: center; }
.gauge-num { font-family: var(--font-mono); font-size: 20px; color: var(--green); font-weight: 700; }

.alert-card { padding: 10px 14px; }
.alert-row { display: flex; gap: 8px; padding: 7px 0; border-bottom: 1px solid var(--border); }
.alert-row:last-child { border-bottom: none; }
.alert-dot.red { color: var(--red); }
.alert-dot.green { color: var(--green); }
.alert-msg { font-size: 12px; }
.alert-ts { color: var(--text-dim); font-size: 10px; margin-top: 1px; }
.alert-empty { color: var(--text-dim); font-size: 11px; padding: 8px 0; }

.dev-row { display: flex; justify-content: space-between; padding: 5px 0; font-size: 12px; }
.dev-row .ok { color: var(--green); font-size: 11px; }
.dev-row .bad { color: var(--red); font-size: 11px; }

.period-tabs { display: flex; gap: 6px; }
.ptab {
  color: var(--text-muted);
  font-size: 11px;
  padding: 5px 14px;
  border-radius: 5px;
  text-decoration: none;
  border: 1px solid var(--border);
}
.ptab.active { color: var(--amber); border-color: var(--amber); background: #1E3357; }

.cols2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.dev-list-card { padding: 10px 14px; }
.dev-list-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
}
.dev-list-row:last-child { border-bottom: none; }
.dev-icon-circle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
}
.dev-icon-circle.ok-ring, .dev-icon-circle-lg.ok-ring { background: rgba(79,224,160,0.12); border: 1.5px solid var(--green); }
.dev-icon-circle.bad-ring, .dev-icon-circle-lg.bad-ring { background: rgba(255,107,111,0.12); border: 1.5px solid var(--red); }
.dev-icon-circle.none-ring, .dev-icon-circle-lg.none-ring { background: rgba(116,136,172,0.08); border: 1.5px solid var(--border); }
.dev-info { flex: 1; min-width: 0; }
.dev-info .dev-title { font-size: 12px; color: var(--text); }
.dev-info .dev-role { font-size: 9px; color: var(--text-dim); margin-top: 1px; }
.dev-pill { font-size: 9px; white-space: nowrap; }
.dev-pill.ok { color: var(--green); }
.dev-pill.bad { color: var(--red); }
.dev-pill.none { color: var(--text-dim); }

.device-header {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
}
.dev-icon-circle-lg {
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
}
.device-title { font-size: 17px; font-weight: 700; }
.device-role { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.dev-pill-lg { margin-left: auto; font-size: 11px; padding: 5px 12px; border-radius: 5px; }
.dev-pill-lg.ok { color: var(--green); background: rgba(79,224,160,0.12); border: 1px solid rgba(79,224,160,0.4); }
.dev-pill-lg.bad { color: var(--red); background: rgba(255,107,111,0.12); border: 1px solid rgba(255,107,111,0.4); }
.dev-pill-lg.none { color: var(--text-dim); background: rgba(116,136,172,0.08); border: 1px solid var(--border); }

a.diagram-node-link { cursor: pointer; }

.dev-list-link, .alert-row-link {
  text-decoration: none;
  color: inherit;
  display: flex;
}
.dev-list-link:hover, .alert-row-link:hover { background: rgba(255,255,255,0.02); }
.back-link { color: var(--blue); font-size: 12px; text-decoration: none; }

/* 설비실 온도 */
.facility-card { margin-top: 8px; padding: 12px; }
.facility-val {
  font-family: var(--font-mono); font-size: 22px; margin: 8px 0 10px;
  color: var(--text);
}
.facility-val.danger { color: var(--red); }
.ac-pill { font-size: 9px; padding: 2px 8px; border-radius: 4px; }
.ac-pill.on { color: var(--green); background: rgba(79,224,160,0.12); border: 1px solid rgba(79,224,160,0.4); }
.ac-pill.off { color: var(--text-dim); background: rgba(116,136,172,0.08); border: 1px solid var(--border); }

.range-bar {
  position: relative;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, #26406B, #1D9E75, #26406B);
  margin: 6px 0 4px;
}
.range-marker {
  position: absolute;
  top: -3px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--panel);
  transform: translateX(-50%);
}
.range-marker.danger { background: var(--red); }
.range-labels { display: flex; justify-content: space-between; font-size: 8px; color: var(--text-dim); }
.range-mid { color: var(--text-dim); }
.facility-meta { display: flex; justify-content: space-between; font-size: 10px; color: var(--text-muted); margin-top: 8px; }

/* 송전 현황 */
.delivery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.delivery-cell { background: var(--panel-alt); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; }
.delivery-cell .dk { font-size: 9px; color: var(--text-muted); margin-bottom: 3px; }
.delivery-cell .dv { font-family: var(--font-mono); font-size: 15px; }
.delivery-cell .du { font-size: 9px; color: var(--text-muted); margin-left: 2px; }

.battery-mini { display: flex; align-items: center; gap: 8px; }
.bm-label { font-size: 10px; color: var(--text-muted); white-space: nowrap; }
.battery-bar { flex: 1; height: 6px; border-radius: 3px; background: var(--panel-alt); overflow: hidden; }
.battery-fill { height: 100%; background: linear-gradient(90deg, #27500A, #4FE0A0); border-radius: 3px; }
.bm-val { font-family: var(--font-mono); font-size: 11px; color: var(--green); }

/* 풍속/풍향 */
.w-wind { color: var(--teal); font-size: 11px; font-weight: 600; white-space: nowrap; }
.alert-dot.amber { color: var(--amber); }

.stat-row.four { grid-template-columns: repeat(4, 1fr); }

/* 모델 관리 페이지: 박스형 패널 */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.panel-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.panel-title { font-size: 13px; font-weight: 600; }
.panel-badge {
  font-size: 9px; color: var(--teal);
  background: rgba(94,234,212,0.1); border: 1px solid rgba(94,234,212,0.35);
  padding: 2px 8px; border-radius: 10px;
}
.panel-test { border: 1px dashed var(--teal); }

.btn {
  background: var(--panel-alt);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-size: 12px;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { border-color: var(--amber); color: var(--amber); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:disabled:hover { border-color: var(--border-strong); color: var(--text); }
.btn-teal { border-color: var(--teal); color: var(--teal); }
.btn-teal:hover { background: rgba(94,234,212,0.1); }
.btn-danger { border-color: var(--red); color: var(--red); }
.btn-danger:hover { background: rgba(255,107,111,0.1); }

.status-ok { color: var(--green); }
.status-warn { color: var(--red); }

.test-history-card { border: 1px dashed var(--teal); }

/* 실측/시뮬레이션/미설치 배지 + 데이터 신선도 + 센서 오류 */
.data-badge {
  font-size: 8px; padding: 1px 6px; border-radius: 8px;
  white-space: nowrap; font-weight: 600;
}
.data-badge.real { color: var(--green); background: rgba(79,224,160,0.12); border: 1px solid rgba(79,224,160,0.4); }
.data-badge.sim { color: var(--amber); background: rgba(255,192,105,0.12); border: 1px solid rgba(255,192,105,0.4); }
.data-badge.none { color: var(--text-dim); background: rgba(116,136,172,0.08); border: 1px solid var(--border); }

/* 예측/MAPE 등 "베이스모델 준비 전 임시값" 표시 - 눈에 띄도록 진한 배경 사용 (다른 data-badge보다 강조) */
.forecast-temp-badge {
  display: inline-block;
  font-size: 9px; font-weight: 700;
  padding: 2px 7px; border-radius: 8px;
  color: #241800; background: var(--amber);
  white-space: nowrap; vertical-align: middle;
}
.forecast-temp-note {
  font-size: 10px; color: var(--amber); font-weight: 600;
  margin-top: 6px;
}

.updated-note { font-size: 9px; color: var(--text-dim); margin-top: 4px; }
.updated-note.stale { color: var(--red); }

.sensor-error { color: var(--red); font-size: 15px; }

/* 통합 상세뷰 페이지 */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }
.detail-col-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px;
}
.detail-col-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px; font-size: 13px; font-weight: 600;
}
.detail-item-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.detail-item { background: var(--panel-alt); border: 1px solid var(--border); border-radius: 7px; padding: 9px 10px; }
.detail-item .k { font-size: 10px; color: var(--text-muted); margin-bottom: 4px; display: flex; justify-content: space-between; align-items: center; gap: 4px; }
.detail-item .v { font-family: var(--font-mono); font-size: 17px; }
.detail-item .v .u { font-size: 10px; color: var(--text-muted); margin-left: 2px; }
.detail-bottom { margin-top: 14px; }

@media (max-width: 900px) {
  .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .detail-item-grid { grid-template-columns: 1fr; }
}