:root {
    /* Light theme */
    --primary-color: #1a365d;
    --primary-light: #2d5a87;
    --secondary-color: #e2e8f0;
    --accent-color: #3182ce;
    --accent-light: #4299e1;
    --success-color: #38a169;
    --warning-color: #ed8936;
    --danger-color: #e53e3e;
    --info-color: #3182ce;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Space Mono', 'Courier New', monospace;
}

[data-theme="dark"] {
    /* Dark theme */
    --primary-color: #3182ce;
    --primary-light: #4299e1;
    --secondary-color: #2d3748;
    --accent-color: #63b3ed;
    --accent-light: #90cdf4;
    --success-color: #68d391;
    --warning-color: #fbb02a;
    --danger-color: #fc8181;
    --info-color: #63b3ed;
    
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-tertiary: #4a5568;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    --border-color: #4a5568;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: all 0.3s ease;
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.logo:hover {
    color: var(--accent-color);
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

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

.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0.5rem;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Main Content */
.main-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
}

.hero-search {
    max-width: 36rem;
    margin: 0 auto 3rem;
    position: relative;
}

.search-container {
    display: flex;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: border-color 0.2s ease;
}

.search-container:focus-within {
    border-color: var(--accent-color);
}

.search-input {
    flex: 1;
    padding: 1rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
}

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

.search-type-select {
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 1rem;
    font-size: 0.875rem;
    outline: none;
    border-right: 1px solid var(--border-color);
}

.search-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

/* Quick Access */
.quick-access {
    background: var(--bg-secondary);
    padding: 3rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.category-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
    text-decoration: none;
    color: inherit;
}

.category-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

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

.category-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.category-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Content Sections */
.content-section {
    padding: 3rem 0;
    display: none;
}

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

.tools-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.filters-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.filter-select,
.filter-input {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.filter-select:focus,
.filter-input:focus {
    border-color: var(--accent-color);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

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

.tool-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.tool-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tool-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-free { background: #d4edda; color: #155724; }
.badge-freemium { background: #fff3cd; color: #856404; }
.badge-paid { background: #f8d7da; color: #721c24; }
.badge-low { background: #d1ecf1; color: #0c5460; }
.badge-medium { background: #fff3cd; color: #856404; }
.badge-high { background: #f8d7da; color: #721c24; }

[data-theme="dark"] .badge-free { background: rgba(46, 125, 50, 0.3); color: #81c784; border: 1px solid #4caf50; }
[data-theme="dark"] .badge-freemium { background: rgba(255, 152, 0, 0.3); color: #ffb74d; border: 1px solid #ff9800; }
[data-theme="dark"] .badge-paid { background: rgba(244, 67, 54, 0.3); color: #e57373; border: 1px solid #f44336; }
[data-theme="dark"] .badge-low { background: rgba(33, 150, 243, 0.3); color: #64b5f6; border: 1px solid #2196f3; }
[data-theme="dark"] .badge-medium { background: rgba(255, 152, 0, 0.3); color: #ffb74d; border: 1px solid #ff9800; }
[data-theme="dark"] .badge-high { background: rgba(244, 67, 54, 0.3); color: #e57373; border: 1px solid #f44336; }

.tool-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.tool-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.tool-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.tool-actions {
    display: flex;
    gap: 0.75rem;
}

.btn {
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

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

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

/* About Section */
.about-content {
    max-width: 48rem;
    margin: 0 auto;
}

.about-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    margin-bottom: 2rem;
}

.about-card h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.about-card ul {
    color: var(--text-secondary);
    padding-left: 1.25rem;
}

.about-card li {
    margin-bottom: 0.5rem;
}

/* Search Results */
.search-results {
    margin-top: 2rem;
}

.results-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
}

.results-header {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-primary);
}

.results-content {
    padding: 1.5rem;
}

.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

.spinner {
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes burstFade {
    0% { 
        opacity: 1; 
        transform: translate(-50%, -50%) scale(0.5); 
        box-shadow: 0 0 5px #fbbf24; 
    }
    50% { 
        opacity: 0.8; 
        transform: translate(-50%, -50%) scale(1.5); 
        box-shadow: 0 0 15px #fbbf24; 
    }
    100% { 
        opacity: 0; 
        transform: translate(-50%, -50%) scale(2); 
        box-shadow: 0 0 25px transparent; 
    }
}

/* Mobile Responsive */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .filters-grid {
        grid-template-columns: 1fr;
    }

    .tools-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
}

/* Dashboard Styles */
.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.stat-change {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.stat-change.positive {
    background: rgba(56, 161, 105, 0.1);
    color: var(--success-color);
}

.stat-change.negative {
    background: rgba(229, 62, 62, 0.1);
    color: var(--danger-color);
}

.dashboard-widget {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.2s ease;
}

.dashboard-widget:hover {
    box-shadow: var(--shadow-lg);
}

/* Special styling for map widget */
.dashboard-widget.map-widget {
    background: transparent;
    border: none;
    border-radius: 0;
    overflow: visible;
}

.dashboard-widget.map-widget .widget-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0.75rem 0.75rem 0 0;
    margin: 0;
    position: relative;
    z-index: 10;
}

.dashboard-widget.map-widget .widget-content {
    padding: 0;
    margin: 0;
    background: transparent;
    border: none;
    border-radius: 0 0 0.75rem 0.75rem;
    overflow: hidden;
}

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

.widget-header h3 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.widget-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.live-indicator {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.widget-content {
    padding: 1.5rem;
}

/* Remove all borders and backgrounds from map container */
#osintMap {
    background: transparent !important;
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

/* Leaflet specific overrides to remove white borders */
.leaflet-container {
    background: transparent !important;
    border: none !important;
    outline: none !important;
}

.leaflet-control-container {
    pointer-events: auto;
}

.leaflet-control {
    background: rgba(45, 55, 72, 0.9) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 4px !important;
}

.alert-item {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.alert-item:last-child {
    border-bottom: none;
}

.alert-timestamp {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-right: 0.5rem;
}

.alert-severity-high {
    border-left: 4px solid var(--danger-color);
}

.alert-severity-medium {
    border-left: 4px solid var(--warning-color);
}

.alert-severity-low {
    border-left: 4px solid var(--info-color);
}

.event-log-entry {
    padding: 0.25rem 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.event-log-entry:last-child {
    border-bottom: none;
}

.event-timestamp {
    color: var(--text-muted);
    margin-right: 0.5rem;
}

/* Hide sections by default */
#toolsSection,
#searchSection,
#aboutSection,
#dashboardSection {
    display: none;
}

#homeSection {
    display: block;
}

/* Utility classes */
.text-center {
    text-align: center;
}

.hidden {
    display: none !important;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.gap-2 {
    gap: 0.5rem;
}