/* OSINT Tool Explorer - Enhanced Styles */

/* CSS Custom Properties for Theming */
:root {
    --bg-color: #f5f5f5;
    --container-bg: white;
    --text-color: #333;
    --border-color: #ddd;
    --card-bg: #f8f9fa;
    --btn-bg: #f8f9fa;
    --btn-hover: #007bff;
    --status-online: #28a745;
    --status-offline: #dc3545;
    --status-unknown: #6c757d;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
}

/* Dark Mode Theme */
body.dark-mode {
    --bg-color: #1a1a1a;
    --container-bg: #2d2d2d;
    --text-color: #e0e0e0;
    --border-color: #404040;
    --card-bg: #3a3a3a;
    --btn-bg: #404040;
    --btn-hover: #0056b3;
    --status-online: #20c997;
    --status-offline: #e74c3c;
    --status-unknown: #adb5bd;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.3);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    margin: 2rem;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--container-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

/* Typography */
h1 {
    color: var(--text-color);
    margin-bottom: var(--spacing-lg);
    font-size: 2.5rem;
    font-weight: 300;
    text-align: center;
}

/* Header and Description */
.description {
    background: linear-gradient(135deg, #e7f3ff 0%, #f0f8ff 100%);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid #007bff;
    transition: var(--transition);
}

body.dark-mode .description {
    background: linear-gradient(135deg, #1e3a5f 0%, #2a4a6b 100%);
    color: #e0e0e0;
}

/* Toolbar */
.toolbar {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    background: var(--btn-bg);
    border-radius: calc(var(--border-radius) / 2);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
    font-family: inherit;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background: var(--btn-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.btn.active {
    background: var(--btn-hover);
    color: white;
    box-shadow: var(--shadow-hover);
}

.btn:focus {
    outline: 2px solid var(--btn-hover);
    outline-offset: 2px;
}

.btn i {
    font-size: 0.85rem;
}

/* Favorites button styling */
.btn#favorites-btn.active {
    background: #dc3545;
    border-color: #dc3545;
}

.btn#favorites-btn:hover {
    background: #dc3545;
    border-color: #dc3545;
}

/* Search Input */
#search {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: calc(var(--border-radius) / 2);
    width: 300px;
    background: var(--container-bg);
    color: var(--text-color);
    font-family: inherit;
    transition: var(--transition);
}

#search:focus {
    outline: 2px solid var(--btn-hover);
    outline-offset: 2px;
    border-color: var(--btn-hover);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

#search::placeholder {
    color: var(--text-color);
    opacity: 0.6;
}

/* Stats */
.stats {
    background: var(--card-bg);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: calc(var(--border-radius) / 2);
    margin-left: auto;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
    font-weight: 500;
}

/* Main Content Areas */
#tree, #grid {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    min-height: 500px;
    background: var(--container-bg);
    transition: var(--transition);
}

#grid {
    display: none;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
}

/* Tool Cards */
.tool-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    background: var(--card-bg);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

.tool-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tool-favicon {
    width: 16px;
    height: 16px;
    border-radius: 2px;
    flex-shrink: 0;
}

.tool-name {
    font-weight: 600;
    color: var(--btn-hover);
    font-size: 1.1rem;
    line-height: 1.3;
    margin: 0;
    flex: 1;
}

.tool-description {
    color: var(--text-color);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    flex: 1;
    opacity: 0.8;
    line-height: 1.5;
}

.tool-category {
    background: var(--btn-hover);
    color: white;
    padding: 2px 8px;
    border-radius: calc(var(--border-radius) / 3);
    font-size: 0.75rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tool-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.tool-url {
    color: var(--btn-hover);
    text-decoration: none;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    flex: 1;
}

.tool-url:hover {
    text-decoration: underline;
}

.tool-favorite {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 50%;
    transition: var(--transition);
    opacity: 0.6;
}

.tool-favorite:hover {
    opacity: 1;
    background: var(--border-color);
}

.tool-favorite.favorited {
    color: #dc3545;
    opacity: 1;
}

/* Status Indicators */
.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--spacing-sm);
}

.status-online { background-color: var(--status-online); }
.status-offline { background-color: var(--status-offline); }
.status-unknown { background-color: var(--status-unknown); }

/* 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: 0;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--btn-hover);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    border-radius: calc(var(--border-radius) / 2);
    z-index: 1000;
    font-weight: 500;
}

.skip-link:focus {
    top: 6px;
}

/* Dark Mode Specific Styles */
body.dark-mode .jstree-default .jstree-node {
    color: var(--text-color);
}

body.dark-mode .jstree-default .jstree-anchor {
    color: var(--text-color);
}

body.dark-mode .jstree-default .jstree-anchor:hover {
    background: var(--card-bg);
}

body.dark-mode .jstree-default .jstree-clicked {
    background: var(--btn-hover);
    color: white;
}

/* Loading States */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    color: var(--text-color);
    opacity: 0.6;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--btn-hover);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: var(--spacing-md);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    body {
        margin: 1rem;
    }
    
    .container {
        padding: var(--spacing-md);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    #search {
        width: 100%;
    }
    
    .stats {
        margin-left: 0;
        text-align: center;
    }
    
    #grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .tool-card {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    body {
        margin: 0.5rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .btn {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .tool-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .tool-card {
        border-width: 2px;
    }
    
    .btn {
        border-width: 2px;
    }
    
    .tool-category {
        border: 2px solid white;
    }
}

/* Fallback Tree View */
.fallback-tree {
    padding: var(--spacing-md);
}

.category-section {
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    background: var(--card-bg);
}

.category-title {
    color: var(--btn-hover);
    margin: 0 0 var(--spacing-md) 0;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.tool-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tool-item {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: calc(var(--border-radius) / 2);
    transition: var(--transition);
}

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

.tool-item a {
    color: var(--text-color);
    text-decoration: none;
    display: block;
}

.tool-item a:hover {
    color: var(--btn-hover);
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
    
    .tool-card:hover {
        transform: none;
    }
    
    .btn:hover {
        transform: none;
    }
}