/* ============================================
   MeshMeteo — Modern Weather Dashboard
   ============================================ */

/* === CSS VARIABLES (THEMES) === */
:root {
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 14px;
    --radius-sm: 8px;
    --radius-xs: 6px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.15);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
}

[data-theme="dark"] {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a2035;
    --bg-card-hover: #1f2847;
    --bg-surface: #151b2e;
    --bg-input: #1a2035;
    --border-color: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.2);
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --card-gradient: linear-gradient(135deg, rgba(59,130,246,0.05) 0%, rgba(139,92,246,0.03) 100%);
    --header-bg: rgba(10, 14, 26, 0.85);
    --modal-bg: rgba(0,0,0,0.6);
    --scrollbar-track: #1a2035;
    --scrollbar-thumb: #334155;
}

[data-theme="light"] {
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-surface: #f1f5f9;
    --bg-input: #f1f5f9;
    --border-color: rgba(0,0,0,0.08);
    --border-hover: rgba(0,0,0,0.15);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.12);
    --success: #16a34a;
    --warning: #d97706;
    --danger: #dc2626;
    --info: #0891b2;
    --card-gradient: linear-gradient(135deg, rgba(59,130,246,0.04) 0%, rgba(139,92,246,0.02) 100%);
    --header-bg: rgba(255, 255, 255, 0.85);
    --modal-bg: rgba(0,0,0,0.3);
    --scrollbar-track: #e2e8f0;
    --scrollbar-thumb: #94a3b8;
}

/* === RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    transition: background var(--transition), color var(--transition);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* === HEADER === */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--header-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
}

.logo h1 {
    font-size: 1.35rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo svg { color: var(--accent); }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.badge-online {
    background: rgba(34, 197, 94, 0.12);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.badge-offline {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.25);
}

.badge-info {
    background: rgba(6, 182, 212, 0.12);
    color: var(--info);
    border: 1px solid rgba(6, 182, 212, 0.25);
}

.badge-no-meteo {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

/* Stat pills */
.stats-mini {
    display: flex;
    gap: 0.5rem;
}

.stat-pill {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.7rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.stat-pill svg { color: var(--accent); opacity: 0.8; }

/* Button icon */
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-icon:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

[data-theme="dark"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* === TABS NAV === */
.tabs-nav {
    display: flex;
    gap: 0.25rem;
    padding: 0.75rem 1.5rem 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
    margin-bottom: -1px;
}

.tab-btn:hover {
    color: var(--text-secondary);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-btn svg { opacity: 0.7; }
.tab-btn.active svg { opacity: 1; }

/* === MAIN CONTENT === */
.main-content {
    padding: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Section header */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.section-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Search box */
.search-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition);
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-box svg { color: var(--text-muted); flex-shrink: 0; }

.search-box input {
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.85rem;
    outline: none;
    width: 200px;
}

.search-box input::placeholder { color: var(--text-muted); }

/* === DASHBOARD CARDS GRID === */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1rem;
}

/* Weather Card */
.weather-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.25rem;
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.weather-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), #8b5cf6);
    opacity: 0;
    transition: opacity var(--transition);
}

.weather-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.weather-card:hover::before { opacity: 1; }

.weather-card.offline {
    opacity: 0.6;
}

.weather-card.offline::before {
    background: var(--danger);
}

.weather-card.no-meteo::before {
    background: var(--warning);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.card-node-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.card-node-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.card-node-id {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'Courier New', monospace;
}

.card-status {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.card-hops {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Temperature hero */
.temp-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0.75rem 0;
    padding: 0.75rem 0;
}

.temp-value {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.temp-value.warm {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    -webkit-background-clip: text;
    background-clip: text;
}

.temp-value.hot {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    -webkit-background-clip: text;
    background-clip: text;
}

.temp-value.cold {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
}

.temp-unit {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-muted);
    align-self: flex-start;
    margin-top: 0.4rem;
}

/* Sensor metrics grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
}

.metric-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.7rem;
    background: var(--bg-surface);
    border-radius: var(--radius-xs);
    border: 1px solid var(--border-color);
}

.metric-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.metric-icon.humidity { background: rgba(6, 182, 212, 0.12); color: var(--info); }
.metric-icon.pressure { background: rgba(139, 92, 246, 0.12); color: #8b5cf6; }
.metric-icon.gas { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.metric-icon.iaq { background: rgba(34, 197, 94, 0.12); color: var(--success); }

.metric-data {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.metric-label {
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 500;
}

.metric-value {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Card footer */
.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.85rem;
    padding-top: 0.7rem;
    border-top: 1px solid var(--border-color);
}

.card-timestamp {
    font-size: 0.72rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.card-channel {
    font-size: 0.7rem;
    color: var(--text-muted);
    padding: 0.15rem 0.5rem;
    background: var(--bg-surface);
    border-radius: 999px;
    border: 1px solid var(--border-color);
}

/* No meteo card */
.no-meteo-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    text-align: center;
    gap: 0.5rem;
}

.no-meteo-message svg { opacity: 0.4; }
.no-meteo-message p { font-size: 0.85rem; }

/* === IAQ Indicator === */
.iaq-bar {
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--bg-surface);
    margin-top: 0.3rem;
    overflow: hidden;
}

.iaq-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.5s ease;
}

.iaq-good { background: var(--success); }
.iaq-moderate { background: var(--warning); }
.iaq-bad { background: var(--danger); }

/* === NODES TABLE === */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-card);
}

.nodes-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.nodes-table thead {
    background: var(--bg-surface);
}

.nodes-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.nodes-table td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    white-space: nowrap;
}

.nodes-table tbody tr {
    transition: background var(--transition);
    cursor: pointer;
}

.nodes-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.nodes-table tbody tr:last-child td {
    border-bottom: none;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 6px rgba(34, 197, 94, 0.5); }
.status-dot.offline { background: var(--danger); }
.status-dot.no-meteo-dot { background: var(--warning); }

.table-node-name {
    font-weight: 600;
    color: var(--text-primary);
}

.table-value-na {
    color: var(--text-muted);
    font-style: italic;
}

/* === MAP === */
.map-wrapper {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

#map {
    height: 550px;
    width: 100%;
    border-radius: var(--radius);
    z-index: 1;
}

.map-legend {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    z-index: 1000;
    display: flex;
    gap: 1rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    backdrop-filter: blur(10px);
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-dot.online { background: var(--success); }
.legend-dot.offline { background: var(--danger); }
.legend-dot.no-meteo { background: var(--warning); }

/* Custom map markers */
.custom-marker {
    background: none;
    border: none;
}

.marker-pin {
    width: 30px;
    height: 30px;
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.marker-pin.online { background: var(--success); }
.marker-pin.offline { background: var(--danger); }
.marker-pin.no-meteo { background: var(--warning); }

.marker-pin span {
    transform: rotate(45deg);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
}

/* Leaflet popup custom */
.leaflet-popup-content-wrapper {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-sm) !important;
    box-shadow: var(--shadow-lg) !important;
}

.leaflet-popup-tip {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
}

.popup-content {
    font-family: var(--font);
    font-size: 0.82rem;
    line-height: 1.6;
    min-width: 180px;
}

.popup-content h4 {
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
    color: var(--accent);
}

.popup-content .popup-row {
    display: flex;
    justify-content: space-between;
    padding: 0.15rem 0;
}

.popup-content .popup-label { color: var(--text-muted); }
.popup-content .popup-val { font-weight: 600; }

/* === MODAL === */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: var(--modal-bg);
    backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    width: 100%;
    max-width: 550px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
}

.modal-body {
    padding: 1.5rem;
}

.modal-detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border-color);
}

.modal-detail-row:last-child { border-bottom: none; }

.modal-detail-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.modal-detail-value {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* === EMPTY STATE === */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--text-muted);
    gap: 0.5rem;
}

.empty-state h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 0.88rem;
    max-width: 350px;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .header {
        padding: 0.6rem 1rem;
    }

    .stats-mini { display: none; }

    .tabs-nav {
        padding: 0.5rem 1rem 0;
        overflow-x: auto;
    }

    .tab-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.8rem;
    }

    .main-content {
        padding: 1rem;
    }

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

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-box { width: 100%; }
    .search-box input { width: 100%; }

    #map { height: 400px; }

    .map-legend {
        flex-direction: column;
        gap: 0.4rem;
        font-size: 0.72rem;
    }

    .temp-value { font-size: 2.2rem; }

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

@media (max-width: 480px) {
    .logo h1 { font-size: 1.1rem; }
    .badge { font-size: 0.65rem; }
}

/* === ANIMATIONS === */
@keyframes cardEnter {
    from { opacity: 0; transform: translateY(16px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.weather-card {
    animation: cardEnter 0.4s ease backwards;
}

.weather-card:nth-child(1) { animation-delay: 0.02s; }
.weather-card:nth-child(2) { animation-delay: 0.06s; }
.weather-card:nth-child(3) { animation-delay: 0.1s; }
.weather-card:nth-child(4) { animation-delay: 0.14s; }
.weather-card:nth-child(5) { animation-delay: 0.18s; }
.weather-card:nth-child(6) { animation-delay: 0.22s; }
.weather-card:nth-child(7) { animation-delay: 0.26s; }
.weather-card:nth-child(8) { animation-delay: 0.3s; }
.weather-card:nth-child(9) { animation-delay: 0.34s; }
.weather-card:nth-child(10) { animation-delay: 0.38s; }


/* ============================================
   CHARTS TAB
   ============================================ */

/* Chart Controls */
.chart-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.chart-select {
    padding: 0.45rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.82rem;
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition);
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
    padding-right: 2rem;
    min-width: 160px;
}

.chart-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.chart-select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    padding: 0.4rem 0.7rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-secondary);
    font-family: var(--font);
    font-size: 0.78rem;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-sm:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-sm.btn-danger {
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-sm.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
}

/* DB Stats Bar */
.db-stats {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 0.65rem 1rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.db-stat {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.db-stat-label {
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 500;
}

.db-stat-value {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}

.chart-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-sm);
}

.chart-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.15rem;
    border-bottom: 1px solid var(--border-color);
}

.chart-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-unit {
    font-size: 0.72rem;
    color: var(--text-muted);
    padding: 0.15rem 0.5rem;
    background: var(--bg-surface);
    border-radius: 999px;
    border: 1px solid var(--border-color);
    font-weight: 500;
}

.chart-body {
    padding: 0.85rem;
    height: 240px;
    position: relative;
}

.chart-body canvas {
    width: 100% !important;
    height: 100% !important;
}

/* Modal Charts (mini sparklines) */
.modal-chart-section {
    margin-top: 0.75rem;
}

.modal-chart-section h4 {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.modal-mini-charts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.mini-chart-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    padding: 0.5rem;
}

.mini-chart-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.mini-chart-canvas {
    height: 60px;
}


/* (MQTT panel rimosso — gestione lato server) */


/* ============================================
   RESPONSIVE - Charts
   ============================================ */
@media (max-width: 768px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }

    .chart-controls {
        width: 100%;
    }

    .chart-select {
        flex: 1;
        min-width: 0;
    }

    .chart-body {
        height: 200px;
    }

    .modal-mini-charts {
        grid-template-columns: 1fr;
    }

    .db-stats {
        gap: 0.75rem;
    }
}