/* ==========================================================================
   OG2 Meteo Station & Climate History Dashboard - Design System
   ========================================================================== */

:root {
    /* Fonts */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Theme: Dark (Default) */
    --bg-app: #090d16;
    --bg-card: rgba(18, 25, 41, 0.75);
    --bg-card-solid: #121929;
    --bg-card-hover: rgba(26, 36, 58, 0.85);
    --bg-subtle: rgba(255, 255, 255, 0.03);
    --bg-input: #151d30;

    --border-color: rgba(255, 255, 255, 0.09);
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-accent: rgba(56, 189, 248, 0.3);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Meteorology Accents */
    --temp-red: #ff5a5f;
    --temp-orange: #ff9800;
    --temp-warm-glow: rgba(255, 90, 95, 0.15);
    --hum-blue: #38bdf8;
    --hum-cyan: #06b6d4;
    --hum-glow: rgba(56, 189, 248, 0.15);

    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --success-green: #10b981;
    --warning-yellow: #f59e0b;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);

    --backdrop-blur: blur(16px);
}

/* Light Theme Variables */
[data-theme="light"] {
    --bg-app: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-solid: #ffffff;
    --bg-card-hover: #ffffff;
    --bg-subtle: rgba(0, 0, 0, 0.03);
    --bg-input: #e2e8f0;

    --border-color: rgba(0, 0, 0, 0.08);
    --border-subtle: rgba(0, 0, 0, 0.04);
    --border-accent: rgba(14, 165, 233, 0.4);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --temp-red: #ea384d;
    --temp-warm-glow: rgba(234, 56, 77, 0.12);
    --hum-blue: #0284c7;
    --hum-glow: rgba(2, 132, 199, 0.12);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    font-family: var(--font-sans);
    background-color: var(--bg-app);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.mono {
    font-family: var(--font-mono);
}

/* App Container */
.app-container {
    max-width: 1360px;
    margin: 0 auto;
    padding: 1.5rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-bottom: 0.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.brand-logo {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #ff7a45, #38bdf8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 14px rgba(56, 189, 248, 0.25);
}

.brand-title {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(56, 189, 248, 0.15);
    color: var(--hum-blue);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-accent);
}

.brand-subtitle {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

/* Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success-green);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.status-timer {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.75rem;
    padding-left: 0.25rem;
    border-left: 1px solid var(--border-color);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Buttons & Inputs */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.5rem 0.9rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--text-secondary);
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-primary {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-outline {
    background: transparent;
}

.btn-sm {
    padding: 0.35rem 0.7rem;
    font-size: 0.8rem;
}

.segmented-control {
    display: inline-flex;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 3px;
}

.segmented-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.segmented-btn.active {
    background: var(--accent-primary);
    color: #ffffff;
}

.select-control {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.45rem 0.75rem;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
}

/* Generic Card Styles */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    backdrop-filter: var(--backdrop-blur);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Hero Realtime Metrics */
.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.metric-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 220px;
}

.card-glow {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    filter: blur(50px);
    pointer-events: none;
}

.glow-temp {
    background: var(--temp-warm-glow);
}

.glow-humidity {
    background: var(--hum-glow);
}

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

.metric-icon-wrap {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-temp {
    background: rgba(255, 90, 95, 0.15);
    color: var(--temp-red);
}

.icon-humidity {
    background: rgba(56, 189, 248, 0.15);
    color: var(--hum-blue);
}

.icon-station {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success-green);
}

.metric-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-right: auto;
    margin-left: 0.75rem;
}

.trend-badge, .comfort-badge, .tag-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
}

.trend-badge {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
}

.comfort-badge {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success-green);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.tag-badge {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
}

.metric-body {
    margin: 0.5rem 0 1rem;
}

.metric-main-value {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.value-num {
    font-size: 3.4rem;
    font-weight: 800;
    font-family: var(--font-mono);
    line-height: 1;
    letter-spacing: -0.03em;
}

.card-temp .value-num {
    color: var(--temp-red);
}

.card-humidity .value-num {
    color: var(--hum-blue);
}

.value-unit {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.metric-footer {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--border-subtle);
}

.sub-metric {
    display: flex;
    flex-direction: column;
}

.sub-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
}

.sub-value {
    font-size: 0.88rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    margin-top: 2px;
}

/* Station Details Card */
.station-details {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-top: 0.5rem;
}

.station-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-subtle);
}

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

.station-label {
    color: var(--text-muted);
}

.station-val {
    font-weight: 600;
    color: var(--text-primary);
}

/* History Section */
.history-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-title-wrap .section-title {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.section-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.timeframe-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    background: var(--bg-subtle);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.tf-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tf-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card-hover);
}

.tf-btn.active {
    background: var(--accent-primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.35);
}

/* Custom Range Bar */
.custom-range-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-subtle);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
}

.date-input-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.date-input {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    outline: none;
}

.range-info-note {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Chart Options Toolbar */
.chart-options-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.chart-toggles {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.view-mode-group {
    display: inline-flex;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 2px;
}

.toggle-pill {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.35rem 0.7rem;
    border-radius: 6px;
    cursor: pointer;
}

.toggle-pill.active {
    background: var(--bg-card-solid);
    color: var(--text-primary);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input {
    cursor: pointer;
    accent-color: var(--accent-primary);
}

.chart-data-stats {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

/* Chart Canvas Wrapper */
.charts-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

.chart-canvas-container {
    position: relative;
    width: 100%;
    height: 420px;
}

.split-container {
    height: 260px;
}

/* Statistics Summary Grid */
.stats-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.85rem;
    margin-top: 0.5rem;
}

.stat-box {
    background: var(--bg-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    display: flex;
    flex-direction: column;
}

.stat-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-value {
    font-size: 1.45rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text-primary);
    margin: 0.2rem 0;
}

.stat-cool {
    color: var(--hum-blue);
}

.stat-warm {
    color: var(--temp-red);
}

.stat-date, .stat-note {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* Records Grid */
.records-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.records-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.record-card {
    border-radius: var(--radius-md);
    padding: 1.15rem;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.record-hot {
    background: linear-gradient(135deg, rgba(255, 90, 95, 0.1), transparent);
    border-color: rgba(255, 90, 95, 0.25);
}

.record-cold {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), transparent);
    border-color: rgba(56, 189, 248, 0.25);
}

.record-wet {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), transparent);
    border-color: rgba(6, 182, 212, 0.25);
}

.record-dry {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), transparent);
    border-color: rgba(245, 158, 11, 0.25);
}

.record-badge {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.record-value {
    font-size: 1.85rem;
    font-weight: 800;
    font-family: var(--font-mono);
    margin: 0.4rem 0;
}

.record-hot .record-value { color: var(--temp-red); }
.record-cold .record-value { color: var(--hum-blue); }
.record-wet .record-value { color: var(--hum-cyan); }
.record-dry .record-value { color: var(--warning-yellow); }

.record-timestamp {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

/* Table Section */
.table-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.table-header-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.table-actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.search-input {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
    outline: none;
    min-width: 200px;
}

.search-input:focus {
    border-color: var(--accent-primary);
}

.table-container {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.data-table th {
    background: var(--bg-subtle);
    padding: 0.75rem 1rem;
    font-weight: 700;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table th.sortable {
    cursor: pointer;
    user-select: none;
}

.data-table th.sortable:hover {
    color: var(--text-primary);
}

.data-table td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: var(--bg-subtle);
}

.table-loading {
    text-align: center;
    padding: 2rem !important;
    color: var(--text-muted);
}

.table-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.page-indicator {
    font-family: var(--font-mono);
    font-weight: 700;
    padding: 0 0.5rem;
}

/* Footer */
.app-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    font-size: 0.82rem;
    color: var(--text-muted);
}

.app-footer a {
    color: var(--hum-blue);
    text-decoration: none;
}

.app-footer a:hover {
    text-decoration: underline;
}

.connection-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: var(--bg-card);
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .hero-metrics {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 640px) {
    .app-container {
        padding: 1rem;
    }

    .header-controls {
        width: 100%;
        justify-content: space-between;
    }

    .stats-summary-grid, .records-grid {
        grid-template-columns: 1fr;
    }

    .metric-main-value .value-num {
        font-size: 2.8rem;
    }

    .chart-canvas-container {
        height: 300px;
    }
}