/* Asset Discovery Platform - Unified Styles with Dark Mode Support */

/* CSS Variables for Theme Support */
:root {
    /* Light Theme Colors */
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f9fafb;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --border-color: #e2e8f0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --card-bg: rgba(255, 255, 255, 0.9);
    --input-bg: #ffffff;
    --hover-bg: #f7fafc;
    
    /* Brand Colors (consistent across themes) */
    --primary-gradient-start: #667eea;
    --primary-gradient-end: #764ba2;
    --accent-color: #667eea;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --danger-color: #f56565;
    --info-color: #4299e1;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    
    /* Font Sizes */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 2rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index layers */
    --z-base: 0;
    --z-dropdown: 100;
    --z-modal: 1000;
    --z-navigation: 1000;
    --z-notification: 1100;
}

/* Dark Theme */
[data-theme="dark"],
.dark-mode {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-tertiary: #374151;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-tertiary: #cbd5e0;
    --border-color: #4a5568;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --card-bg: rgba(45, 55, 72, 0.9);
    --input-bg: #374151;
    --hover-bg: #4a5568;
}

/* Ensure dark mode applies to body as well */
body[data-theme="dark"],
body.dark-mode {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: var(--font-3xl); }
h2 { font-size: var(--font-2xl); }
h3 { font-size: var(--font-xl); }
h4 { font-size: var(--font-lg); }
h5 { font-size: var(--font-base); }
h6 { font-size: var(--font-sm); }

.text-gradient {
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Add top padding when global theme toggle is present */
body:not(:has(.nav-bar)) .container {
    padding-top: 80px; /* Make room for global theme toggle */
}

/* Mobile adjustments */
@media (max-width: 768px) {
    body:not(:has(.nav-bar)) .container {
        padding-top: 70px;
    }
}

/* Cards */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: 0 10px 30px var(--shadow-color);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px var(--shadow-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    gap: var(--spacing-sm);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

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

.btn-secondary:hover {
    background: var(--hover-bg);
}

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

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

.btn-icon {
    padding: var(--spacing-sm);
    width: 40px;
    height: 40px;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-base);
    background: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-secondary);
}

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

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Responsive Grid */
@media (max-width: 1200px) {
    .grid-cols-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 992px) {
    .grid-cols-4,
    .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-cols-4,
    .grid-cols-3,
    .grid-cols-2 { grid-template-columns: 1fr; }
}

/* Dark Mode Toggle */
/* Global theme toggle (only when no nav bar exists) */
#themeToggle.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: var(--z-notification);
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px var(--shadow-color);
}

/* Hide global toggle on pages with navigation bars */
.nav-bar ~ * #themeToggle.theme-toggle,
body:has(.nav-bar) #themeToggle.theme-toggle {
    display: none;
}

/* Navigation Bar Base Styles */
.nav-bar {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: 0 4px 20px var(--shadow-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.nav-brand img {
    height: 40px;
    width: auto;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Theme toggle in navigation bars */
.nav-bar .theme-toggle {
    background: none;
    border: 2px solid var(--primary-gradient-start);
    color: var(--primary-gradient-start);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-sm);
}

#themeToggle.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px var(--shadow-color);
}

.nav-bar .theme-toggle:hover {
    background: var(--primary-gradient-start);
    color: white;
    transform: translateY(-1px);
}

.theme-toggle-icon {
    font-size: 1.5rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-xs);
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.badge-success {
    background: rgba(72, 187, 120, 0.1);
    color: var(--success-color);
}

.badge-warning {
    background: rgba(237, 137, 54, 0.1);
    color: var(--warning-color);
}

.badge-danger {
    background: rgba(245, 101, 101, 0.1);
    color: var(--danger-color);
}

.badge-info {
    background: rgba(66, 153, 225, 0.1);
    color: var(--info-color);
}

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, 
        var(--bg-tertiary) 0%, 
        var(--hover-bg) 50%, 
        var(--bg-tertiary) 100%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

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

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-lg);
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px var(--shadow-color);
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* Charts Container */
.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

/* Status Indicators */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
}

.status-dot.active { background: var(--success-color); }
.status-dot.inactive { background: var(--danger-color); }
.status-dot.pending { background: var(--warning-color); }

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

/* Hide/Show utilities */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

@media (max-width: 768px) {
    .d-md-none { display: none; }
    .d-md-block { display: block; }
}

/* Page Transitions */
.fade-in {
    animation: fadeIn var(--transition-base);
}

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

/* Print Styles */
@media print {
    .no-print,
    .nav-sidebar,
    .nav-toggle,
    .theme-toggle,
    #themeToggle {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
    
    .container {
        padding-top: 0 !important;
    }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    html { font-size: 14px; }
    
    .container, .main-container {
        padding: 0 var(--spacing-md);
    }
    
    .card {
        padding: var(--spacing-lg);
        border-radius: var(--radius-lg);
    }
    
    /* Navigation Bar Mobile */
    .nav-bar {
        flex-direction: column;
        align-items: stretch !important;
        padding: var(--spacing-md) !important;
        gap: var(--spacing-md);
    }
    
    .nav-brand {
        text-align: center;
        margin-bottom: var(--spacing-sm);
    }
    
    .nav-brand img {
        max-height: 32px !important;
    }
    
    .nav-controls {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .nav-controls .btn {
        width: 100%;
        text-align: center;
    }
    
    .theme-toggle {
        order: -1; /* Move theme toggle to top */
        align-self: center;
        width: auto !important;
    }
    
    /* Page Headers Mobile */
    .page-header {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: var(--spacing-lg) !important;
        text-align: center;
    }
    
    .header-left {
        text-align: center;
    }
    
    .header-left h1 {
        font-size: var(--font-2xl) !important;
    }
    
    .header-right {
        flex-direction: column;
        gap: var(--spacing-sm) !important;
    }
    
    .header-right .btn {
        width: 100%;
        text-align: center;
    }
    
    /* Tables Mobile */
    .table-responsive {
        border: none;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    table {
        min-width: 600px; /* Minimum width to prevent squishing */
        font-size: var(--font-sm);
    }
    
    th, td {
        padding: var(--spacing-sm) !important;
        white-space: nowrap;
    }
    
    /* Cards and Grids Mobile */
    .grid-cols-4,
    .grid-cols-3,
    .grid-cols-2 {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-md);
    }
    
    .card-grid {
        grid-template-columns: 1fr !important;
    }
    
    /* Forms Mobile */
    .form-row {
        flex-direction: column;
    }
    
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        border-radius: var(--radius-md) !important;
        margin-bottom: var(--spacing-xs);
    }
    
    /* Modals Mobile */
    .modal-content {
        margin: var(--spacing-md);
        max-height: 90vh;
        overflow-y: auto;
    }
    
    .modal-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .modal-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .modal-footer .btn {
        width: 100%;
    }
    
    /* Stats Cards Mobile */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--spacing-sm);
    }
    
    .stat-card {
        padding: var(--spacing-md) !important;
        text-align: center;
    }
    
    .stat-number {
        font-size: var(--font-xl) !important;
    }
    
    /* Tabs Mobile */
    .tabs-nav {
        flex-wrap: wrap !important;
        gap: var(--spacing-xs) !important;
    }
    
    .tab-button {
        flex: 1;
        min-width: 120px;
        padding: var(--spacing-sm) var(--spacing-md) !important;
        font-size: var(--font-sm) !important;
    }
    
    /* Dashboard Charts Mobile */
    .chart-container {
        height: 250px !important;
    }
    
    /* Text Sizing Mobile */
    h1 { font-size: var(--font-2xl) !important; }
    h2 { font-size: var(--font-xl) !important; }
    h3 { font-size: var(--font-lg) !important; }
    
    /* Spacing Adjustments */
    .mt-4 { margin-top: var(--spacing-lg) !important; }
    .mb-4 { margin-bottom: var(--spacing-lg) !important; }
    .p-4 { padding: var(--spacing-lg) !important; }
    
    /* Hide unnecessary elements on mobile */
    .d-mobile-none {
        display: none !important;
    }
    
    .d-mobile-block {
        display: block !important;
    }
}

/* Extra Small Mobile Devices */
@media (max-width: 480px) {
    html { font-size: 13px; }
    
    .container, .main-container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-bar {
        padding: var(--spacing-sm) !important;
        border-radius: var(--radius-md) !important;
        margin-bottom: var(--spacing-lg) !important;
    }
    
    .nav-brand {
        font-size: var(--font-lg) !important;
    }
    
    .nav-brand img {
        max-height: 28px !important;
    }
    
    .page-header {
        padding: var(--spacing-md) 0 !important;
    }
    
    .header-left h1 {
        font-size: var(--font-xl) !important;
    }
    
    .stats-grid {
        grid-template-columns: 1fr !important;
    }
    
    .tabs-nav {
        flex-direction: column !important;
    }
    
    .tab-button {
        min-width: auto !important;
        width: 100% !important;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md) !important;
        font-size: var(--font-sm) !important;
    }
    
    .card {
        padding: var(--spacing-md) !important;
        margin-bottom: var(--spacing-md) !important;
    }
    
    .modal-content {
        margin: var(--spacing-sm);
    }
    
    table {
        min-width: 400px;
        font-size: var(--font-xs);
    }
    
    th, td {
        padding: var(--spacing-xs) !important;
    }
}

/* Landscape orientation adjustments */
@media (max-width: 768px) and (orientation: landscape) {
    .nav-bar {
        flex-direction: row !important;
        align-items: center !important;
    }
    
    .nav-controls {
        flex-direction: row !important;
    }
    
    .nav-controls .btn {
        width: auto !important;
    }
    
    .page-header {
        flex-direction: row !important;
    }
    
    .header-right {
        flex-direction: row !important;
    }
    
    .header-right .btn {
        width: auto !important;
    }
}

/* Touch-friendly improvements */
@media (max-width: 768px) {
    /* Larger touch targets */
    .btn, button, .tab-button {
        min-height: 44px; /* iOS recommended touch target */
        min-width: 44px;
    }
    
    /* Better spacing for touch */
    .btn-group .btn {
        margin-bottom: var(--spacing-sm);
    }
    
    /* Larger form inputs */
    input, textarea, select {
        min-height: 44px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    /* Improved scrolling */
    .table-responsive {
        -webkit-overflow-scrolling: touch;
    }
}
    #themeToggle.theme-toggle {
        width: 40px;
        height: 40px;
        top: 10px;
        right: 10px;
    }
    
    .modal-content {
        margin: var(--spacing-md);
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Reduce Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}