/* Import modern typography */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* CSS Custom Properties for Theme Support */
:root {
    /* Light Theme Palette (Premium Slate & Indigo) */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.85);
    --border-color: rgba(226, 232, 240, 0.8);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --color-primary: #6366f1; /* Indigo */
    --color-primary-rgb: 99, 102, 241;
    --color-primary-hover: #4f46e5;
    
    --color-success: #10b981; /* Emerald */
    --color-success-rgb: 16, 185, 129;
    --color-warning: #f59e0b; /* Amber */
    --color-danger: #f43f5e; /* Rose */
    
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
    --card-shadow-hover: 0 20px 40px -15px rgba(99, 102, 241, 0.12), 0 1px 5px rgba(99, 102, 241, 0.04);
    --glass-blur: blur(12px);
    
    --chart-grid: #e2e8f0;
}

[data-theme="dark"] {
    /* Dark Theme Palette (Sleek Space & Cobalt) */
    --bg-primary: #090d16;
    --bg-secondary: #0f172a;
    --bg-card: rgba(15, 23, 42, 0.75);
    --border-color: rgba(51, 65, 85, 0.5);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --color-primary: #818cf8; /* Light Indigo */
    --color-primary-rgb: 129, 140, 248;
    --color-primary-hover: #6366f1;
    
    --color-success: #34d399; /* Mint Emerald */
    --color-success-rgb: 52, 211, 153;
    --color-warning: #fbbf24;
    --color-danger: #fb7185;
    
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
    --card-shadow-hover: 0 20px 40px -15px rgba(129, 140, 248, 0.25), 0 1px 5px rgba(129, 140, 248, 0.1);
    --glass-blur: blur(16px);
    
    --chart-grid: #1e293b;
}

/* Core Settings */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem 1.5rem;
    overflow-x: hidden;
}

/* Smooth custom scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.dashboard-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    animation: fadeIn 0.8s ease-out;
}

main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

footer p {
    margin: 0;
}

footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    color: var(--color-primary-hover);
}

/* Header Styles */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.header-title-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.header-title-group h1 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    background: linear-gradient(135deg, var(--color-primary), var(--color-success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-title-group p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

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

/* Glassmorphic buttons and inputs */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.15);
}

.btn:active {
    transform: translateY(0);
}

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

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

/* Theme Toggle Button specific style */
#themeToggle {
    border-radius: 50%;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
}

/* Glass Card */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(var(--color-primary-rgb), 0.2);
}

/* KPI Cards Layout */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.kpi-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.kpi-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--card-accent, var(--color-primary)), transparent);
    opacity: 0.7;
}

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

.kpi-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.kpi-icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 8px;
    background: rgba(var(--kpi-color-rgb, var(--color-primary-rgb)), 0.1);
    color: rgb(var(--kpi-color-rgb, var(--color-primary-rgb)));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.kpi-value-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kpi-value {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.kpi-badge-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.kpi-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.kpi-badge.up {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.kpi-badge.down {
    background: rgba(244, 63, 94, 0.1);
    color: var(--color-danger);
}

.kpi-badge.neutral {
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-muted);
}

.kpi-trend-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Dashboard Interactive Area */
.dashboard-workspace {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .dashboard-workspace {
        grid-template-columns: 1fr;
    }
}

/* Visualization Panel */
.viz-panel {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-height: 520px;
}

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

.tabs {
    display: flex;
    gap: 0.5rem;
    background: rgba(var(--color-primary-rgb), 0.05);
    padding: 0.25rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.tab-btn {
    border: none;
    background: transparent;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--bg-secondary);
    color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.chart-container {
    position: relative;
    flex-grow: 1;
    width: 100%;
    min-height: 380px;
}

/* Controls Panel */
.controls-panel {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.panel-title {
    font-size: 1.15rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-container {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.input-container label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.input-field {
    width: 100%;
    padding: 0.65rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    outline: none;
    transition: all 0.2s ease;
}

.input-field:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

/* Range Slider Styles */
.slider-container {
    padding: 0.5rem 0;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 0.5rem;
}

/* Custom Dual Range Slider or Single slider */
.range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 5px;
    background: var(--border-color);
    outline: none;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
    transition: all 0.1s ease;
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 0 0 5px rgba(var(--color-primary-rgb), 0.2);
}

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

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

.search-wrapper {
    position: relative;
    max-width: 300px;
    width: 100%;
}

.search-wrapper i {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.search-wrapper input {
    padding-left: 2.25rem;
}

.table-wrapper {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.premium-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.premium-table th {
    background: rgba(var(--color-primary-rgb), 0.03);
    color: var(--text-secondary);
    font-weight: 700;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
}

.premium-table th:hover {
    background: rgba(var(--color-primary-rgb), 0.08);
}

.premium-table th i {
    margin-right: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.premium-table th .sort-icon {
    margin-left: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.5;
}

.premium-table th.sorted-asc .sort-icon,
.premium-table th.sorted-desc .sort-icon {
    opacity: 1;
    color: var(--color-primary);
}

.premium-table td {
    padding: 0.9rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
}

.premium-table tbody tr {
    transition: background-color 0.15s ease;
}

.premium-table tbody tr:hover {
    background-color: rgba(var(--color-primary-rgb), 0.02);
}

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

.highlight-row {
    font-weight: 700 !important;
    color: var(--text-primary) !important;
}

/* Modal styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(9, 13, 22, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.modal-container {
    width: 100%;
    max-width: 500px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.modal-overlay.active .modal-container {
    transform: translateY(0);
}

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

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    border: none;
    background: transparent;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-muted);
}

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

.modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: rgba(var(--color-primary-rgb), 0.01);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Utility layout helpers */
.text-success { color: var(--color-success) !important; }
.text-danger { color: var(--color-danger) !important; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }

/* Grid adjustments for responsive */
@media (max-width: 640px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .header-controls {
        width: 100%;
        justify-content: space-between;
    }
    .table-header-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .search-wrapper {
        max-width: 100%;
    }
}