/* BHUMI-CIJ: CSS Design System */

:root {
    /* Color Palette */
    --bg-app: #080c14;
    --bg-card: rgba(15, 23, 42, 0.75);
    --bg-card-solid: #0f172a;
    --bg-sidebar: #090e18;
    --border-color: #1e293b;
    --border-glow: #334155;
    
    /* Semantic Colors */
    --color-red: #f43f5e;
    --color-red-dim: rgba(244, 63, 94, 0.12);
    --color-cyan: #06b6d4;
    --color-cyan-dim: rgba(6, 182, 212, 0.12);
    --color-amber: #eab308;
    --color-amber-dim: rgba(234, 179, 8, 0.12);
    --color-purple: #a855f7;
    --color-purple-dim: rgba(168, 85, 247, 0.12);
    --color-emerald: #10b981;
    --color-emerald-dim: rgba(16, 185, 129, 0.12);
    --color-orange: #f97316;
    --color-orange-dim: rgba(249, 115, 22, 0.12);
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-header: #ffffff;
    
    /* Fonts */
    --font-sans: 'Outfit', sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    /* Layout Variables */
    --sidebar-width: 290px;
    --header-height: 80px;
    --border-radius: 12px;
    --transition-speed: 0.25s;
    --box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

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

body {
    background-color: var(--bg-app);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow-x: hidden;
    height: 100vh;
}

/* App Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

/* Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    height: 100%;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-red);
    filter: drop-shadow(0 0 8px rgba(244, 63, 94, 0.5));
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.5px;
    color: var(--text-header);
}

.brand-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--text-muted);
}

.sidebar-nav {
    flex-grow: 1;
    padding: 24px 16px;
    overflow-y: auto;
}

.sidebar-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    font-weight: 500;
}

.nav-item i {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-speed) ease;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.nav-item:hover i {
    transform: translateX(2px);
}

.nav-item.active {
    background-color: var(--color-red-dim);
    color: var(--color-red);
    border-left: 3px solid var(--color-red);
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}

.sidebar-footer {
    padding: 20px 16px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.15);
}

.quick-stats-box {
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.quick-stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.stat-value {
    font-size: 1rem;
    font-weight: 600;
}

.progress-bar-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.progress-track {
    width: 100%;
    height: 6px;
    background-color: #1e293b;
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--color-red);
    box-shadow: 0 0 8px var(--color-red);
    border-radius: 3px;
}

.source-credit {
    text-align: center;
    font-size: 0.65rem;
    color: var(--text-muted);
}

.vercel-badge {
    display: inline-block;
    background: linear-gradient(135deg, #22c55e, #10b981);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.6rem;
    font-weight: 600;
    margin-top: 6px;
    text-transform: uppercase;
}

/* Main Content Wrapper */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow-y: auto;
}

/* Header Styles */
.app-header {
    height: var(--header-height);
    border-bottom: 1px solid var(--border-color);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    background-color: rgba(8, 12, 20, 0.6);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.app-header h1 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-header);
}

.app-header p {
    font-size: 0.85rem;
    margin-top: 2px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.filter-badge {
    background-color: var(--color-red-dim);
    border: 1px solid var(--color-red);
    color: var(--color-red);
    padding: 6px 12px;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: pulse 2s infinite;
}

.clear-filter-btn {
    background: none;
    border: none;
    color: var(--color-red);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.clear-filter-btn i {
    width: 14px;
    height: 14px;
}

.header-search {
    position: relative;
    width: 280px;
}

.header-search input {
    width: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px 16px 10px 42px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    transition: all var(--transition-speed) ease;
}

.header-search input:focus {
    border-color: var(--color-red);
    box-shadow: 0 0 10px rgba(244, 63, 94, 0.25);
    background-color: var(--bg-card-solid);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

/* Tab Structure */
.tab-content {
    display: none;
    padding: 32px;
    flex-grow: 1;
    animation: fadeIn 0.4s ease-out;
}

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

.tab-introduction {
    margin-bottom: 24px;
}

.tab-introduction h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-header);
}

.tab-introduction p {
    font-size: 0.95rem;
    margin-top: 4px;
}

/* Glass Panels */
.glass-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
    backdrop-filter: blur(12px);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.glass-panel:hover {
    border-color: var(--border-glow);
}

/* Metrics Section */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.metric-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--box-shadow);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: transparent;
}

#metric-encroached-area::before { background-color: var(--color-red); }
#metric-total-area::before { background-color: var(--color-cyan); }
#metric-cases::before { background-color: var(--color-amber); }
#metric-max-grabbing::before { background-color: var(--color-purple); }

.card-hover {
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.card-hover:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.metric-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.metric-icon i {
    width: 26px;
    height: 26px;
}

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

.metric-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    margin: 4px 0;
}

.metric-subtext {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Charts Layout */
.charts-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.chart-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
}

.chart-header {
    margin-bottom: 20px;
}

.chart-header h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-header);
}

.chart-header p {
    font-size: 0.75rem;
}

.chart-wrapper {
    position: relative;
    width: 100%;
    height: 300px;
}

.flex-col-2 {
    grid-column: span 1;
}

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

/* Wards & Rivers Layout */
.wards-rivers-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.ward-grid-panel {
    padding: 24px;
}

.panel-header {
    margin-bottom: 20px;
}

.panel-header h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-header);
}

.panel-header p {
    font-size: 0.8rem;
}

.ward-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.ward-block {
    aspect-ratio: 1;
    background-color: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.ward-block:hover {
    transform: scale(1.08);
    z-index: 2;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
}

.ward-block.selected {
    border: 2px solid var(--text-primary) !important;
    transform: scale(1.04);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.ward-block-num {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
}

.ward-block-cases {
    font-size: 0.6rem;
    color: var(--text-muted);
}

.density-low {
    background-color: var(--color-cyan-dim);
    border-color: rgba(6, 182, 212, 0.4);
    color: var(--color-cyan);
}
.density-med {
    background-color: var(--color-amber-dim);
    border-color: rgba(234, 179, 8, 0.4);
    color: var(--color-amber);
}
.density-high {
    background-color: var(--color-orange-dim);
    border-color: rgba(249, 115, 22, 0.4);
    color: var(--color-orange);
}
.density-critical {
    background-color: var(--color-red-dim);
    border-color: rgba(244, 63, 94, 0.4);
    color: var(--color-red);
}

.ward-grid-legend {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-color {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    display: inline-block;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Ward Detail Display Panel */
.ward-details-panel {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ward-detail-header {
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}

.ward-badge {
    width: 50px;
    height: 50px;
    background-color: var(--color-red-dim);
    border: 1px solid var(--color-red);
    color: var(--color-red);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ward-title-group h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-header);
}

.ward-title-group p {
    font-size: 0.8rem;
}

.ward-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.ward-stat-box {
    background-color: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ward-stat-box .label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.ward-stat-box .value {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.ward-subsegment h4 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
    border-left: 2px solid var(--color-red);
    padding-left: 8px;
}

.ranking-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ranking-list li {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    padding: 8px 12px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    align-items: center;
}

.ranking-list .rank-name {
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 70%;
}

.ranking-list .rank-value {
    font-weight: 600;
}

/* River Spotlight Section */
.river-spotlight-section {
    padding: 24px;
    margin-top: 24px;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.total-river-stat {
    font-family: var(--font-heading);
    background-color: var(--color-red-dim);
    border: 1px solid var(--color-red);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.rivers-flex-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.river-card {
    background: linear-gradient(180deg, rgba(6, 182, 212, 0.04) 0%, rgba(15, 23, 42, 0.6) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
}

.river-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-red));
}

.river-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-cyan);
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.15);
}

.river-card.active-filter {
    border-color: var(--color-red);
    box-shadow: 0 0 15px rgba(244, 63, 94, 0.25);
    background-color: rgba(244, 63, 94, 0.03);
}

.river-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.river-card-header h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-header);
}

.river-icon {
    color: var(--color-cyan);
}

.river-card.active-filter .river-icon {
    color: var(--color-red);
}

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

.river-meta-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
}

.river-meta-item .lbl {
    color: var(--text-muted);
}

.river-meta-item .val {
    font-weight: 600;
}

/* Database Filters Section */
.database-filters {
    padding: 24px;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.filter-row-primary {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 20px;
}

.filter-row-secondary {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.search-field, .filter-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.search-field label, .filter-field label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-wrapper {
    position: relative;
    width: 100%;
}

.input-wrapper i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

.input-wrapper input {
    width: 100%;
    background-color: rgba(8, 12, 20, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px 16px 10px 42px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    transition: all var(--transition-speed) ease;
}

.input-wrapper input:focus {
    border-color: var(--color-red);
    box-shadow: 0 0 8px rgba(244, 63, 94, 0.15);
}

.filter-field select {
    background-color: rgba(8, 12, 20, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px 16px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    width: 100%;
}

.filter-field select:focus {
    border-color: var(--color-red);
}

.filter-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn {
    border-radius: var(--border-radius);
    padding: 10px 20px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    outline: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background-color: var(--color-red);
    border: 1px solid var(--color-red);
    color: white;
}

.btn-primary:hover {
    background-color: #e11d48;
    box-shadow: 0 4px 12px rgba(244, 63, 94, 0.4);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--border-glow);
}

.results-counter {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Table Container */
.table-container {
    overflow-x: auto;
    margin-bottom: 24px;
}

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

.data-table th {
    background-color: rgba(15, 23, 42, 0.6);
    padding: 16px 20px;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-header);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    user-select: none;
    transition: background-color var(--transition-speed) ease;
}

.data-table th:hover {
    background-color: rgba(15, 23, 42, 0.9);
}

.data-table th .sort-icon {
    display: inline-block;
    margin-left: 6px;
    font-size: 0.7rem;
}

.data-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tbody tr {
    transition: background-color var(--transition-speed) ease;
}

.data-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.text-monospace {
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.tbl-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

.tbl-badge-reg {
    background-color: var(--color-emerald-dim);
    color: var(--color-emerald);
}

.tbl-badge-unreg {
    background-color: var(--color-amber-dim);
    color: var(--color-amber);
}

.tbl-badge-unknown {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

.tbl-btn-detail {
    background-color: var(--color-red-dim);
    color: var(--color-red);
    border: 1px solid var(--color-red);
    border-radius: 6px;
    padding: 4px 10px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.tbl-btn-detail:hover {
    background-color: var(--color-red);
    color: white;
}

/* Empty & Loading Table States */
.table-loading, .table-empty {
    padding: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    width: 100%;
}

.table-empty i {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
}

.table-empty h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--text-header);
}

.spinner {
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--color-red);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    animation: spin 1s linear infinite;
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    flex-wrap: wrap;
    gap: 16px;
}

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

.pagination-buttons {
    display: flex;
    gap: 6px;
}

.page-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    user-select: none;
}

.page-btn:hover {
    border-color: var(--border-glow);
    color: var(--text-primary);
}

.page-btn.active {
    background-color: var(--color-red);
    border-color: var(--color-red);
    color: white;
}

.page-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* Insights & Spotlight Cards Layout */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.col-span-2 {
    grid-column: span 2;
}

.insight-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}

.card-header i {
    width: 32px;
    height: 32px;
}

.card-header h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-header);
}

.card-header p {
    font-size: 0.75rem;
}

.text-red-border { border-left: 3px solid var(--color-red); padding-left: 14px; }
.text-amber-border { border-left: 3px solid var(--color-amber); padding-left: 14px; }
.text-purple-border { border-left: 3px solid var(--color-purple); padding-left: 14px; }

.insight-summary {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.explanation-text {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.stats-badge {
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.bg-purple-dim { background-color: var(--color-purple-dim); border: 1px solid rgba(168, 85, 247, 0.2); }
.bg-red-dim { background-color: var(--color-red-dim); }
.bg-cyan-dim { background-color: var(--color-cyan-dim); }
.bg-amber-dim { background-color: var(--color-amber-dim); }
.bg-purple-dim-bg { background-color: var(--color-purple-dim); }

.huge-number {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1;
}

.river-reg-card {
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.river-reg-card h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.anomaly-list-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
    max-height: 180px;
}

.anomaly-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.anomaly-title {
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--text-primary);
}

.anomaly-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Modal Window Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(4, 6, 10, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    width: 600px;
    max-width: 90vw;
    background-color: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-speed) cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dossier-tag {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 1px;
    color: var(--color-red);
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-red-dim);
    padding: 6px 12px;
    border-radius: 6px;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-close-btn i {
    width: 20px;
    height: 20px;
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: 70vh;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: rgba(0, 0, 0, 0.2);
}

/* Dossier Content Design */
.dossier-header {
    text-align: center;
    margin-bottom: 24px;
}

.dossier-kitta {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-header);
    margin: 8px 0;
}

.dossier-section {
    margin-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
}

.dossier-section h4 {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
}

.dossier-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.dossier-data-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dossier-data-item .lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dossier-data-item .val {
    font-weight: 600;
    font-size: 0.95rem;
}

.dossier-area-visuals {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dossier-area-bar {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dossier-bar-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
}

.dossier-bar-track {
    width: 100%;
    height: 12px;
    background-color: #1e293b;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.dossier-bar-fill {
    height: 100%;
    border-radius: 6px;
}

.bg-cyan { background-color: var(--color-cyan); box-shadow: 0 0 8px var(--color-cyan); }
.bg-red { background-color: var(--color-red); box-shadow: 0 0 8px var(--color-red); }

.unit-converter-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.unit-box {
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.unit-box .u-val {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
}

.unit-box .u-lbl {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.corruption-flag-alert {
    background-color: var(--color-red-dim);
    border: 1px solid var(--color-red);
    color: var(--color-red);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.corruption-flag-alert i {
    flex-shrink: 0;
}

.alert-content h5 {
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.alert-content p {
    font-size: 0.75rem;
    line-height: 1.5;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(244, 63, 94, 0.4); }
    70% { transform: scale(1.02); box-shadow: 0 0 0 10px rgba(244, 63, 94, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(244, 63, 94, 0); }
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-app);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-glow);
}

/* Helper Utilities */
.text-red { color: var(--color-red); }
.text-cyan { color: var(--color-cyan); }
.text-amber { color: var(--color-amber); }
.text-purple { color: var(--color-purple); }
.text-emerald { color: var(--color-emerald); }
.text-muted { color: var(--text-secondary); }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-3 { margin-bottom: 12px; }
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Responsive Overrides */
@media (max-width: 1200px) {
    .charts-container {
        grid-template-columns: 1fr;
    }
    .wards-rivers-layout {
        grid-template-columns: 1fr;
    }
    .rivers-flex-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .insights-grid {
        grid-template-columns: 1fr;
    }
    .col-span-2 {
        grid-column: span 1;
    }
    .grid-2-col {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .sidebar-footer {
        display: none; /* Hide quick stats in mobile header */
    }
    .app-header {
        padding: 0 20px;
    }
    .tab-content {
        padding: 20px;
    }
    .filter-row-primary {
        grid-template-columns: 1fr;
    }
    .rivers-flex-grid {
        grid-template-columns: 1fr;
    }
}

/* Extra styles for filters and explainer cards */
.secondary-filters-group {
    display: flex;
    gap: 20px;
    flex-grow: 1;
    max-width: 60%;
}
.secondary-filters-group .filter-field {
    flex: 1;
    min-width: 150px;
}
.explainer-section {
    padding: 24px;
    margin-top: 24px;
}
.explainer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 20px;
}
.faq-card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.faq-card h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-cyan);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}
.faq-card p {
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--text-secondary);
}
@media (max-width: 900px) {
    .explainer-grid {
        grid-template-columns: 1fr;
    }
    .secondary-filters-group {
        max-width: 100%;
        width: 100%;
        flex-direction: column;
        gap: 12px;
    }
}