/* Grafana-Inspired Dashboard Stylesheet */
:root {
  --bg-color: #111217;
  --panel-bg: #181b1f;
  --panel-border: #2a2d35;
  --header-bg: #14161a;
  --text-primary: #ebedf2;
  --text-secondary: #9fa7b3;
  --text-muted: #6e7681;
  --accent-blue: #3274d9;
  --accent-green: #299c46;
  --accent-orange: #ff7800;
  --accent-yellow: #e0b400;
  --accent-purple: #a352cc;
  --card-hover: #22252b;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 6px;
}

body.theme-light {
  --bg-color: #f4f5f8;
  --panel-bg: #ffffff;
  --panel-border: #dce1e8;
  --header-bg: #ffffff;
  --text-primary: #1f2328;
  --text-secondary: #57606a;
  --text-muted: #8c959f;
  --card-hover: #f6f8fa;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  line-height: 1.4;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.dashboard-header {
  background-color: var(--header-bg);
  border-bottom: 1px solid var(--panel-border);
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 28px;
}

.header-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.header-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

.dropdown-select {
  background: var(--panel-bg);
  color: var(--text-primary);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 6px 10px;
  font-size: 13px;
  cursor: pointer;
  outline: none;
}

.dropdown-select:focus {
  border-color: var(--accent-blue);
}

/* Time Range Buttons */
.time-range-group {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 2px;
  display: flex;
}

.time-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.time-btn:hover {
  color: var(--text-primary);
}

.time-btn.active {
  background: var(--accent-blue);
  color: #fff;
}

.icon-btn {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 14px;
}

.icon-btn:hover {
  background: var(--card-hover);
}

/* Main Dashboard */
.dashboard-main {
  flex: 1;
  padding: 20px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.kpi-card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s ease, border-color 0.15s ease;
  position: relative;
  overflow: hidden;
}

.kpi-card:hover {
  border-color: var(--text-muted);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-blue);
}

#kpi-indoor-temp::before { background: var(--accent-orange); }
#kpi-outdoor-temp::before { background: var(--accent-blue); }
#kpi-humidity::before { background: var(--accent-green); }
#kpi-power::before { background: var(--accent-yellow); }

.kpi-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.kpi-title {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.kpi-tag {
  font-size: 10px;
  text-transform: uppercase;
  background: var(--card-hover);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 6px;
}

.kpi-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
}

.kpi-unit {
  font-size: 16px;
  color: var(--text-secondary);
}

.kpi-subtext {
  font-size: 11px;
  color: var(--text-muted);
}

/* Chart Panels */
.chart-panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.panel-title {
  font-size: 15px;
  font-weight: 600;
}

.panel-desc {
  font-size: 12px;
  color: var(--text-muted);
}

.status-indicator {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 12px;
  background: rgba(41, 156, 70, 0.15);
  color: var(--accent-green);
  font-weight: 500;
}

.echart-container {
  width: 100%;
  height: 320px;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  width: 90%;
  max-width: 480px;
  padding: 20px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.close-btn {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-secondary);
  cursor: pointer;
}

.modal-body label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
}

.modal-body input[type="text"] {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: var(--bg-color);
  color: var(--text-primary);
  margin-bottom: 16px;
}

.checkbox-group {
  margin-top: 10px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.help-text {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.modal-footer {
  margin-top: 20px;
  text-align: right;
}

.btn-primary {
  background: var(--accent-blue);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius);
  cursor: pointer;
}

/* Footer */
.dashboard-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--panel-border);
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* Embed Mode (when ?embed=1 in URL) */
body.embed-mode .dashboard-header {
  display: none;
}

body.embed-mode .dashboard-footer {
  display: none;
}

body.embed-mode .dashboard-main {
  padding: 10px;
  gap: 12px;
}

body.embed-mode .echart-container {
  height: 280px;
}

/* Sensor Selector Dropdown & Filter Panel */
.relative-container {
  position: relative;
}

.filter-btn {
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge {
  background: var(--accent-blue);
  color: #fff;
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

.caret {
  font-size: 10px;
  color: var(--text-muted);
}

.dropdown-panel {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 6px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  width: 320px;
  max-height: 420px;
  z-index: 150;
  display: flex;
  flex-direction: column;
  padding: 10px;
}

.dropdown-panel.hidden {
  display: none;
}

.panel-search input {
  width: 100%;
  padding: 6px 10px;
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  background: var(--bg-color);
  color: var(--text-primary);
  font-size: 12px;
  outline: none;
  margin-bottom: 8px;
}

.panel-quick-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 6px;
}

.text-link {
  background: none;
  border: none;
  color: var(--accent-blue);
  font-size: 11px;
  cursor: pointer;
  padding: 0;
}

.text-link:hover {
  text-decoration: underline;
}

.checkbox-list {
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 280px;
}

.sensor-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  transition: background 0.1s ease;
}

.sensor-item:hover {
  background: var(--card-hover);
}

.sensor-item input[type="checkbox"] {
  cursor: pointer;
}

.sensor-unit-tag {
  margin-left: auto;
  font-size: 10px;
  color: var(--text-muted);
  background: var(--card-hover);
  padding: 1px 5px;
  border-radius: 3px;
}

.loading-hint {
  font-size: 12px;
  color: var(--text-muted);
  padding: 10px;
  text-align: center;
}