:root {
    --bg-primary: #1a1d23;
    --bg-secondary: #22262e;
    --bg-tertiary: #2a2f38;
    --bg-card: #262b33;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-muted: #6c757d;
    --border-color: #3a3f47;
    --primary-color: #4fc3f7;
    --success-color: #81c784;
    --warning-color: #ffb74d;
    --danger-color: #e57373;
    --info-color: #64b5f6;
}

html, body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* HVAC Dashboard Layout */
.hvac-dashboard {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 1600px;
    margin: 0 auto;
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 3px solid transparent;
}

.stat-card.primary { border-left-color: var(--primary-color); }
.stat-card.info { border-left-color: var(--info-color); }
.stat-card.success { border-left-color: var(--success-color); }
.stat-card.warning { border-left-color: var(--warning-color); }

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.stat-card.primary .stat-icon { background: rgba(79, 195, 247, 0.15); color: var(--primary-color); }
.stat-card.info .stat-icon { background: rgba(100, 181, 246, 0.15); color: var(--info-color); }
.stat-card.success .stat-icon { background: rgba(129, 199, 132, 0.15); color: var(--success-color); }
.stat-card.warning .stat-icon { background: rgba(255, 183, 77, 0.15); color: var(--warning-color); }

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.stat-value {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-unit {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Alerts Section */
.alerts-section {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 10px 12px;
    border: 1px solid var(--danger-color);
    animation: alert-pulse 2s ease-in-out infinite;
}

@keyframes alert-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(229, 115, 115, 0.4); }
    50% { box-shadow: 0 0 12px 4px rgba(229, 115, 115, 0.2); }
}

.section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 13px;
}

.section-header.compact {
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.alerts-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 6px;
    background: var(--bg-tertiary);
}

.alert-item.warning {
    border-left: 3px solid var(--warning-color);
}

.alert-item.error {
    border-left: 3px solid var(--danger-color);
}

.alert-icon {
    font-size: 18px;
}

.alert-item.warning .alert-icon { color: var(--warning-color); }
.alert-item.error .alert-icon { color: var(--danger-color); }

.alert-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.alert-location {
    font-weight: 500;
    font-size: 12px;
}

.alert-message {
    font-size: 11px;
    color: var(--text-secondary);
}

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

/* Main Grid */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 10px;
}

/* Charts Column */
.charts-column {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chart-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 12px;
}

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

.chart-title {
    font-weight: 500;
    font-size: 13px;
}

.chart-subtitle {
    font-size: 11px;
    color: var(--text-secondary);
}

.chart-legend {
    display: flex;
    gap: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--text-secondary);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.dot.zone-a { background: #4fc3f7; }
.dot.zone-b { background: #81c784; }
.dot.zone-c { background: #ffb74d; }

/* Units Column */
.units-column {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 10px;
}

.units-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.unit-card {
    background: var(--bg-tertiary);
    border-radius: 6px;
    padding: 10px;
    border-left: 3px solid transparent;
}

.unit-card.running { border-left-color: var(--success-color); }
.unit-card.standby { border-left-color: var(--warning-color); }
.unit-card.offline {
    border-left-color: var(--danger-color);
    border-left-width: 4px;
    background: rgba(229, 115, 115, 0.08);
}

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

.unit-name {
    font-weight: 600;
    font-size: 12px;
}

.unit-status {
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
}

.unit-card.running .unit-status { background: rgba(129, 199, 132, 0.2); color: var(--success-color); }
.unit-card.standby .unit-status { background: rgba(255, 183, 77, 0.2); color: var(--warning-color); }
.unit-card.offline .unit-status {
    background: var(--danger-color);
    color: white;
    font-weight: 600;
    animation: offline-pulse 1.5s ease-in-out infinite;
}

@keyframes offline-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.unit-metrics {
    display: flex;
    gap: 8px;
    margin-bottom: 6px;
}

.metric {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 11px;
    color: var(--text-secondary);
}

.metric-value {
    color: var(--text-primary);
    font-weight: 500;
}

.unit-setpoint {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
    padding-top: 6px;
    border-top: 1px solid var(--border-color);
}

/* Unit Settings Row */
.unit-settings {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 10px;
    margin-bottom: 6px;
    padding: 6px 0;
    border-top: 1px solid var(--border-color);
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 40px;
}

.setting-label {
    font-size: 9px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.setting-value {
    font-size: 11px;
    color: var(--text-primary);
    font-weight: 500;
}

/* Unit Status Row */
.unit-status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 10px;
    color: var(--text-secondary);
    padding: 4px 0;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 3px;
}

/* Unit Signal Row */
.unit-signal-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 9px;
    color: var(--text-muted);
    padding-top: 4px;
    border-top: 1px dashed var(--border-color);
}

.signal-item {
    display: flex;
    align-items: center;
    gap: 3px;
}

/* Unit Controls */
.unit-controls {
    display: flex;
    justify-content: flex-end;
    padding-top: 6px;
    margin-top: 4px;
    border-top: 1px solid var(--border-color);
}

/* Zones Row */
.zones-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.zone-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 12px;
}

.zone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.zone-name {
    font-weight: 500;
    font-size: 13px;
}

.zone-status {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 500;
}

.zone-status.normal { background: rgba(129, 199, 132, 0.2); color: var(--success-color); }
.zone-status.warning { background: rgba(255, 183, 77, 0.2); color: var(--warning-color); }
.zone-status.error { background: rgba(229, 115, 115, 0.2); color: var(--danger-color); }

.zone-metrics {
    display: flex;
    align-items: center;
    gap: 12px;
}

.zone-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.gauge-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.gauge-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    padding: 10px 0;
}

.metric-label {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.zone-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-left: 12px;
    border-left: 1px solid var(--border-color);
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
}

.info-row span:first-child {
    color: var(--text-secondary);
}

.info-row span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

/* Loading */
.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

.loading-progress circle {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--primary-color);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    color: var(--text-primary);
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

.loading-progress-text:after {
    content: var(--blazor-load-percentage-text, "Loading");
}

/* Error UI */
#blazor-error-ui {
    background: var(--bg-secondary);
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.4);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    color: var(--text-primary);
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

.blazor-error-boundary {
    background: var(--danger-color);
    padding: 1rem;
    color: white;
    border-radius: 4px;
}

.blazor-error-boundary::after {
    content: "An error has occurred."
}

/* Radzen Overrides */
.rz-body {
    background-color: var(--bg-primary) !important;
}

code {
    color: var(--primary-color);
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

/* Responsive */
@media (max-width: 1200px) {
    .main-grid {
        grid-template-columns: 1fr;
    }

    .units-column {
        order: -1;
    }

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

@media (max-width: 900px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .zones-row {
        grid-template-columns: 1fr;
    }

    .units-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .stats-row {
        grid-template-columns: 1fr;
    }

    .units-grid {
        grid-template-columns: 1fr;
    }
}

/* Device Control Dialog */
.device-control-dialog {
    padding: 0 !important;
}

.dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.dialog-header h4 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.info-section,
.readings-section,
.control-section {
    margin-bottom: 8px;
}

.info-section .rz-fieldset-content,
.readings-section .rz-fieldset-content,
.control-section .rz-fieldset-content {
    padding: 12px !important;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.info-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.info-value {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
    word-break: break-all;
}

.readings-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 12px;
}

.reading-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border-left: 3px solid transparent;
}

.reading-card.primary { border-left-color: var(--primary-color); }
.reading-card.info { border-left-color: var(--info-color); }
.reading-card.success { border-left-color: var(--success-color); }
.reading-card.warning { border-left-color: var(--warning-color); }

.reading-card .rz-icon {
    font-size: 24px;
    opacity: 0.7;
}

.reading-card.primary .rz-icon { color: var(--primary-color); }
.reading-card.info .rz-icon { color: var(--info-color); }
.reading-card.success .rz-icon { color: var(--success-color); }
.reading-card.warning .rz-icon { color: var(--warning-color); }

.reading-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.reading-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.reading-label {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 10px 0;
    border-top: 1px solid var(--border-color);
}

.status-row .status-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
}

.status-label {
    color: var(--text-secondary);
}

.status-value {
    color: var(--text-primary);
    font-weight: 500;
}

.status-value.with-icon {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.signal-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding-top: 10px;
    margin-top: 4px;
    border-top: 1px dashed var(--border-color);
    font-size: 11px;
    color: var(--text-muted);
}

.signal-row .signal-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.last-update-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding-top: 10px;
    margin-top: 4px;
    border-top: 1px dashed var(--border-color);
    font-size: 11px;
    color: var(--text-muted);
}

.dropdown-option {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 12px;
}

.control-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.control-item label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.setpoint-control {
    display: flex;
    align-items: center;
    gap: 6px;
}

.setpoint-control span {
    font-size: 14px;
    color: var(--text-secondary);
}

.quick-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.downlink-info {
    padding-top: 10px;
}

.downlink-caption {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    color: var(--text-muted) !important;
    font-size: 11px !important;
    line-height: 1.4;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

/* Responsive adjustments for dialog */
@media (max-width: 600px) {
    .readings-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .control-grid {
        grid-template-columns: 1fr;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }
}