/* ===================================================================
   PSIRT Analysis Dashboard - Shared CSS Module
   Professional dark theme with consistent styling across all pages
   =================================================================== */

/* CSS Variables for consistent theming */
:root {
    /* Colors */
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #2a2a2a;
    --bg-hover: #3a3a3a;
    
    --text-primary: #e0e0e0;
    --text-secondary: #aaa;
    --text-muted: #888;
    
    --accent-blue: #00aaff;
    --accent-blue-hover: #008ae6;
    --accent-green: #4CAF50;
    --accent-green-light: #6bffb4;
    --accent-orange: #ffa500;
    --accent-red: #ff6b6b;
    --accent-purple: #a855f7;
    
    --border-color: #333;
    --border-light: #444;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Fonts */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Courier New", monospace;
}

/* Base Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

body, html {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

/* ===================================================================
   Layout Components
   =================================================================== */

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Navigation Header */
.nav-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.nav-brand-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.nav-brand-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--accent-blue);
    background-color: rgba(0, 170, 255, 0.1);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-user-email {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===================================================================
   Button Styles
   =================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-blue-hover);
    transform: translateY(-1px);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-hover);
}

.btn-success {
    background-color: var(--accent-green);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background-color: #45a049;
}

.btn-danger {
    background-color: var(--accent-red);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background-color: #e55555;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 0.5rem;
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-icon {
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

/* ===================================================================
   Card Components
   =================================================================== */

.card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0.25rem 0 0 0;
}

/* ===================================================================
   KPI Cards
   =================================================================== */

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(30, 30, 30, 0.8) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: all var(--transition-normal);
}

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

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

.kpi-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.kpi-icon.blue { background-color: rgba(0, 170, 255, 0.15); color: var(--accent-blue); }
.kpi-icon.green { background-color: rgba(76, 175, 80, 0.15); color: var(--accent-green); }
.kpi-icon.orange { background-color: rgba(255, 165, 0, 0.15); color: var(--accent-orange); }
.kpi-icon.red { background-color: rgba(255, 107, 107, 0.15); color: var(--accent-red); }
.kpi-icon.purple { background-color: rgba(168, 85, 247, 0.15); color: var(--accent-purple); }

.kpi-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.kpi-subtext {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===================================================================
   Charts Section
   =================================================================== */

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-container {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
}

.chart-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 1rem 0;
}

.chart-svg {
    width: 100%;
    height: 250px;
}

/* Bar Chart Styles */
.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.bar-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.bar-label {
    width: 100px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-transform: capitalize;
    flex-shrink: 0;
}

.bar-wrapper {
    flex: 1;
    height: 24px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.bar-fill {
    height: 100%;
    border-radius: var(--radius-sm);
    transition: width var(--transition-slow) ease-out;
    position: relative;
}

.bar-fill.gradient-blue { background: linear-gradient(90deg, #00aaff 0%, #0077cc 100%); }
.bar-fill.gradient-green { background: linear-gradient(90deg, #4CAF50 0%, #2e7d32 100%); }
.bar-fill.gradient-orange { background: linear-gradient(90deg, #ffa500 0%, #cc8400 100%); }
.bar-fill.gradient-red { background: linear-gradient(90deg, #ff6b6b 0%, #cc5555 100%); }
.bar-fill.gradient-purple { background: linear-gradient(90deg, #a855f7 0%, #7c3aed 100%); }
.bar-fill.gradient-cyan { background: linear-gradient(90deg, #06b6d4 0%, #0891b2 100%); }

.bar-value {
    width: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
    flex-shrink: 0;
}

/* Donut Chart */
.donut-chart-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 0;
}

.donut-svg {
    width: 180px;
    height: 180px;
    transform: rotate(-90deg);
}

.donut-segment {
    fill: none;
    stroke-width: 24;
    transition: stroke-dasharray var(--transition-slow);
}

.donut-center-text {
    transform: rotate(90deg);
    transform-origin: center;
}

.donut-legend {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    flex-shrink: 0;
}

.legend-label {
    color: var(--text-secondary);
    text-transform: capitalize;
}

.legend-value {
    color: var(--text-primary);
    font-weight: 600;
    margin-left: auto;
}

/* ===================================================================
   Data Table
   =================================================================== */

.table-container {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

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

.table-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.table-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.table-search {
    padding: 0.5rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    width: 250px;
    transition: border-color var(--transition-fast);
}

.table-search:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 0.875rem 1.25rem;
    text-align: left;
}

.data-table th {
    background-color: var(--bg-tertiary);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

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

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

.data-table th .sort-icon {
    margin-left: 0.25rem;
    opacity: 0.5;
}

.data-table th.sorted .sort-icon {
    opacity: 1;
    color: var(--accent-blue);
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-fast);
}

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

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

.data-table td {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.data-table .cell-muted {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.data-table .cell-mono {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.data-table .cell-truncate {
    max-width: 300px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.pagination {
    display: flex;
    gap: 0.25rem;
}

.pagination-btn {
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.pagination-btn.active {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ===================================================================
   Status Badges
   =================================================================== */

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status-badge .status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-pending,
.status-queued {
    background-color: rgba(255, 165, 0, 0.15);
    color: var(--accent-orange);
    border: 1px solid rgba(255, 165, 0, 0.3);
}

.status-pending .status-dot,
.status-queued .status-dot {
    background-color: var(--accent-orange);
}

.status-processing {
    background-color: rgba(0, 170, 255, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(0, 170, 255, 0.3);
}

.status-processing .status-dot {
    background-color: var(--accent-blue);
    animation: pulse 1.5s ease-in-out infinite;
}

.status-completed {
    background-color: rgba(76, 175, 80, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.status-completed .status-dot {
    background-color: var(--accent-green);
}

.status-failed {
    background-color: rgba(255, 107, 107, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(255, 107, 107, 0.3);
}

.status-failed .status-dot {
    background-color: var(--accent-red);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ===================================================================
   Modal
   =================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

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

.modal-sm { width: 400px; }
.modal-md { width: 600px; }
.modal-lg { width: 900px; }
.modal-xl { width: 1200px; }

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

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

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

/* ===================================================================
   Form Elements
   =================================================================== */

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 170, 255, 0.1);
}

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

/* ===================================================================
   Toast Notifications - Modern Glass Design
   =================================================================== */

.toast-container {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.875rem 1rem;
    background: linear-gradient(135deg, 
        rgba(30, 41, 59, 0.92) 0%, 
        rgba(15, 23, 42, 0.92) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.12);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(255, 255, 255, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
    min-width: 280px;
    max-width: 380px;
    pointer-events: auto;
    animation: toastSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

/* Subtle accent bar on the left */
.toast::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    border-radius: 14px 0 0 14px;
}

.toast-success::before { background: linear-gradient(180deg, #4ade80 0%, #22c55e 100%); }
.toast-error::before { background: linear-gradient(180deg, #f87171 0%, #ef4444 100%); }
.toast-warning::before { background: linear-gradient(180deg, #fbbf24 0%, #f59e0b 100%); }
.toast-info::before { background: linear-gradient(180deg, #60a5fa 0%, #3b82f6 100%); }

@keyframes toastSlideIn {
    from {
        transform: translateX(calc(100% + 1.5rem));
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.toast-out {
    animation: toastSlideOut 0.25s cubic-bezier(0.4, 0, 1, 1) forwards;
}

@keyframes toastSlideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(calc(100% + 1.5rem));
        opacity: 0;
    }
}

.toast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    font-size: 0.9rem;
    flex-shrink: 0;
    font-weight: 600;
}

.toast-success .toast-icon { 
    background: rgba(74, 222, 128, 0.15);
    color: #4ade80;
}
.toast-error .toast-icon { 
    background: rgba(248, 113, 113, 0.15);
    color: #f87171;
}
.toast-warning .toast-icon { 
    background: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
}
.toast-info .toast-icon { 
    background: rgba(96, 165, 250, 0.15);
    color: #60a5fa;
}

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: 600;
    font-size: 0.8125rem;
    color: #f1f5f9;
    letter-spacing: 0.01em;
}

.toast-message {
    font-size: 0.75rem;
    color: #94a3b8;
    margin-top: 0.125rem;
    letter-spacing: 0.01em;
    line-height: 1.4;
}

.toast-close {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 0.25rem;
    font-size: 1rem;
    border-radius: 6px;
    transition: all 0.15s ease;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.toast-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #e2e8f0;
}

/* ===================================================================
   Loading States
   =================================================================== */

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 14px;
    height: 14px;
    border-width: 2px;
}

.spinner-lg {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

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

.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-hover) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(18, 18, 18, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

/* ===================================================================
   Empty States
   =================================================================== */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    text-align: center;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state-message {
    font-size: 0.875rem;
    color: var(--text-muted);
    max-width: 400px;
    margin-bottom: 1.5rem;
}

/* ===================================================================
   Utility Classes
   =================================================================== */

.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.875rem; }
.font-mono { font-family: var(--font-mono); }
.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ===================================================================
   Responsive Adjustments
   =================================================================== */

@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .nav-header {
        padding: 0.75rem 1rem;
    }
    
    .nav-inner {
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    
    .nav-links {
        order: 3;
        width: 100%;
        justify-content: center;
    }
    
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .donut-chart-wrapper {
        flex-direction: column;
    }
    
    .table-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .table-search {
        width: 100%;
    }
    
    .modal {
        margin: 1rem;
        max-width: calc(100vw - 2rem);
    }
}

/* ═══════════════════════════════════════════════════════════
   DOWNLOAD GRAPH MODAL STYLES (Shared across pages)
   ═══════════════════════════════════════════════════════════ */
.download-form-group {
  margin-bottom: 1rem;
}
.download-form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.download-form-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-primary);
  background: linear-gradient(135deg, rgba(0,0,0,0.4), rgba(0,0,0,0.25));
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.download-form-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0,170,255,0.15);
}
.download-form-input::placeholder {
  color: var(--text-muted);
}

/* Format Toggle */
.download-format-toggle {
  display: flex;
  background: rgba(0,0,0,0.3);
  border-radius: 8px;
  padding: 4px;
  gap: 4px;
}
.download-format-toggle .format-btn {
  flex: 1;
  padding: 0.55rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.18s ease;
}
.download-format-toggle .format-btn:hover:not(.active) {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
}
.download-format-toggle .format-btn.active {
  background: rgba(255,255,255,0.12);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Background Color Row */
.download-bg-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.download-color-picker {
  width: 42px;
  height: 42px;
  padding: 0;
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  cursor: pointer;
  background: transparent;
  overflow: hidden;
}
.download-color-picker::-webkit-color-swatch-wrapper {
  padding: 2px;
}
.download-color-picker::-webkit-color-swatch {
  border-radius: 50%;
  border: none;
}
.download-color-input {
  flex: 1;
}

/* Color Swatches Grid */
.download-color-swatches {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 8px;
  margin-top: 0.5rem;
}
.color-swatch {
  width: 100%;
  aspect-ratio: 1;
  min-width: 32px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.color-swatch:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.color-swatch.transparent-swatch {
  background: repeating-conic-gradient(#808080 0% 25%, #c0c0c0 0% 50%) 50% / 12px 12px;
  border: 1px solid rgba(255,255,255,0.2);
}

/* Action Buttons */
.download-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  font-size: 0.82rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.18s ease;
}
.download-action-btn svg {
  flex-shrink: 0;
}
.download-action-btn.clipboard-btn {
  background: linear-gradient(135deg, #00AAFF, #0088cc);
  color: white;
  box-shadow: 0 2px 8px rgba(0,170,255,0.25);
}
.download-action-btn.clipboard-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,170,255,0.35);
}
.download-action-btn.download-btn {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: white;
  box-shadow: 0 2px 8px rgba(34,197,94,0.25);
}
.download-action-btn.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(34,197,94,0.35);
}
.download-action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Responsive adjustments for download modal */
@media (max-width: 480px) {
  .download-color-swatches {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ═══════════════════════════════════════════════════════════
   DOWNLOAD DROPDOWN (JSON Viewer Toolbar) - Modern Glass Design
   ═══════════════════════════════════════════════════════════ */
.download-dropdown-wrapper {
  position: relative;
  display: inline-flex;
}

.download-dropdown-wrapper .download-json-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding-right: 6px;
}

.download-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 200px;
    max-width: 260px;
    background: linear-gradient(165deg, 
        rgba(28, 36, 50, 0.96) 0%, 
        rgba(14, 20, 34, 0.96) 100%);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 12px;
    box-shadow: 
        0 12px 30px -8px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(255, 255, 255, 0.03),
        0 0 28px rgba(59, 130, 246, 0.05);
    padding: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px) scale(0.98);
    transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1000;
}

.download-dropdown-wrapper.open .download-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.download-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 8px 10px;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.16s cubic-bezier(0.2, 0, 0.18, 1);
    text-align: left;
    position: relative;
    overflow: hidden;
}

.download-option::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.06) 0%, 
        rgba(255, 255, 255, 0.01) 100%);
    opacity: 0;
    transition: opacity 0.16s ease;
    border-radius: 8px;
}

.download-option:hover::before {
  opacity: 1;
}

.download-option:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateX(1px);
}

.download-option:active {
    transform: scale(0.99) translateX(1px);
}

.download-option .option-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.06) 0%, 
        rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 7px;
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 600;
    font-family: var(--font-mono);
    transition: all 0.14s ease;
    flex-shrink: 0;
}

.download-option:hover .option-icon {
    transform: scale(1.03);
    border-color: rgba(255, 255, 255, 0.12);
}

/* JSON option - Amber/Orange theme */
.download-option[data-format="json"] .option-icon {
  color: #fbbf24;
  background: linear-gradient(135deg, 
    rgba(251, 191, 36, 0.15) 0%, 
    rgba(245, 158, 11, 0.08) 100%);
  border-color: rgba(251, 191, 36, 0.2);
}

.download-option[data-format="json"]:hover .option-icon {
    background: linear-gradient(135deg, 
        rgba(251, 191, 36, 0.20) 0%, 
        rgba(245, 158, 11, 0.12) 100%);
    box-shadow: 0 0 12px rgba(251, 191, 36, 0.14);
    color: #fcd34d;
}

/* Excel option - Emerald/Green theme */
.download-option[data-format="excel"] .option-icon {
  color: #4ade80;
  background: linear-gradient(135deg, 
    rgba(74, 222, 128, 0.15) 0%, 
    rgba(34, 197, 94, 0.08) 100%);
  border-color: rgba(74, 222, 128, 0.2);
}

.download-option[data-format="excel"]:hover .option-icon {
    background: linear-gradient(135deg, 
        rgba(74, 222, 128, 0.22) 0%, 
        rgba(34, 197, 94, 0.12) 100%);
    box-shadow: 0 0 12px rgba(74, 222, 128, 0.14);
    color: #86efac;
}

/* Graph option - Purple/Violet theme */
.download-option[data-format="graph"] .option-icon {
  color: #c084fc;
  background: linear-gradient(135deg, 
    rgba(192, 132, 252, 0.15) 0%, 
    rgba(168, 85, 247, 0.08) 100%);
  border-color: rgba(192, 132, 252, 0.2);
}

.download-option[data-format="graph"]:hover .option-icon {
    background: linear-gradient(135deg, 
        rgba(192, 132, 252, 0.22) 0%, 
        rgba(168, 85, 247, 0.12) 100%);
    box-shadow: 0 0 12px rgba(192, 132, 252, 0.14);
    color: #d8b4fe;
}

.download-option .option-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.download-option .option-name {
    font-size: 0.78rem;
    font-weight: 600;
    color: #f1f5f9;
    letter-spacing: 0.01em;
}

.download-option .option-desc {
    font-size: 0.62rem;
    color: #94a3b8;
    letter-spacing: 0.02em;
}

.download-option:hover .option-name {
  color: #ffffff;
}

.download-option:hover .option-desc {
  color: #cbd5e1;
}

/* Download dropdown divider */
.download-divider {
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(148, 163, 184, 0.2) 20%, 
    rgba(148, 163, 184, 0.2) 80%, 
    transparent 100%);
  margin: 8px 12px;
}

/* Graph-only options are hidden by default, shown when graph view is active AND loaded */
.graph-only-option {
  display: none !important;
}

/* When graph is ready, show the graph-only options */
.graph-export-ready .graph-only-option {
  display: flex !important;
}

/* Divider uses block display */
.graph-export-ready .graph-only-option.download-divider {
  display: block !important;
}