/* VS Code Dark Theme CSS Variables */
:root {
    /* VS Code Dark Theme Colors */
    --vscode-editor-bg: #1e1e1e;
    --vscode-sidebar-bg: #252526;
    --vscode-input-bg: #3c3c3c;
    --vscode-dropdown-bg: #3c3c3c;
    --vscode-list-hover: #2a2d2e;
    --vscode-list-active: #094771;
    --vscode-border: #3c3c3c;
    --vscode-focus-border: #007acc;

    /* Text Colors */
    --vscode-text: #cccccc;
    --vscode-text-muted: #858585;
    --vscode-text-link: #3794ff;
    --vscode-text-preformat: #d7ba7d;

    /* Syntax Colors (used for accents) */
    --vscode-keyword: #569cd6;
    --vscode-string: #ce9178;
    --vscode-function: #dcdcaa;
    --vscode-variable: #9cdcfe;
    --vscode-type: #4ec9b0;
    --vscode-comment: #6a9955;
    --vscode-number: #b5cea8;

    /* Button Colors */
    --vscode-button-bg: #0e639c;
    --vscode-button-hover: #1177bb;
    --vscode-button-secondary-bg: #3c3c3c;
    --vscode-button-secondary-hover: #505050;

    /* Badge Colors */
    --color-oss: #4ec9b0;
    --color-saas: #569cd6;
    --color-commercial: #dcdcaa;

    /* Semantic Mappings */
    --color-primary: #007acc;
    --color-primary-dark: #0e639c;
    --color-secondary: #4ec9b0;
    --color-accent: #dcdcaa;
    --color-text: #cccccc;
    --color-text-light: #858585;
    --color-bg: #1e1e1e;
    --color-surface: #252526;
    --color-border: #3c3c3c;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --transition: all 0.15s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: var(--vscode-editor-bg);
    color: var(--vscode-text);
    line-height: 1.6;
    min-height: 100vh;
    font-size: 13px;
}

a {
    color: var(--vscode-text-link);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    text-decoration: underline;
}

/* Scrollbar - VS Code Style */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(121, 121, 121, 0.4);
    border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(100, 100, 100, 0.7);
}

/* Header - VS Code Title Bar Style */
.header {
    background: #323233;
    border-bottom: 1px solid var(--vscode-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    height: 35px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 400;
    font-size: 13px;
    color: var(--vscode-text);
}

.logo-icon {
    width: 16px;
    height: 16px;
    color: var(--vscode-text);
}


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

.nav-link {
    color: var(--vscode-text-muted);
    padding: 4px;
    border-radius: 3px;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.nav-link:hover {
    color: var(--vscode-text);
    background: var(--vscode-list-hover);
    text-decoration: none;
}

/* Hero - VS Code Welcome Tab Style */
.hero {
    text-align: center;
    padding: 2rem 1rem 1.5rem;
    background: var(--vscode-editor-bg);
    border-bottom: 1px solid var(--vscode-border);
}

.hero-title {
    font-size: 24px;
    font-weight: 300;
    color: var(--vscode-text);
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 14px;
    color: var(--vscode-text-muted);
    margin-bottom: 0.5rem;
}

.hero-search {
    display: block;
    max-width: 300px;
    margin: 0.75rem auto;
    position: relative;
}

.hero-search .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    color: var(--vscode-text-muted);
    pointer-events: none;
}

.hero-search .search-input {
    width: 100%;
    box-sizing: border-box;
    padding: 6px 12px 6px 32px;
    border: 1px solid var(--vscode-border);
    border-radius: 4px;
    font-size: 13px;
    background: var(--vscode-input-bg);
    color: var(--vscode-text);
    transition: var(--transition);
}

.hero-search .search-input:focus {
    outline: none;
    border-color: var(--vscode-focus-border);
    box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.2);
}

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

.hero-meta {
    font-size: 12px;
    color: var(--vscode-text-muted);
    font-family: 'Consolas', 'Courier New', monospace;
}

/* Controls - VS Code Toolbar Style */
.controls {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    background: var(--vscode-sidebar-bg);
    border-bottom: 1px solid var(--vscode-border);
}

.track-toggle {
    display: flex;
    background: var(--vscode-input-bg);
    border: 1px solid var(--vscode-border);
    border-radius: 3px;
    padding: 2px;
    gap: 2px;
}

.track-btn {
    padding: 4px 12px;
    border: none;
    background: transparent;
    border-radius: 2px;
    font-size: 12px;
    font-weight: 400;
    color: var(--vscode-text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.track-btn:hover {
    color: var(--vscode-text);
    background: var(--vscode-list-hover);
}

.track-btn.active {
    background: var(--vscode-button-bg);
    color: white;
}

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

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-label {
    font-size: 12px;
    color: var(--vscode-text-muted);
    font-weight: 400;
}

.filter-btn {
    padding: 3px 8px;
    border: 1px solid transparent;
    background: transparent;
    border-radius: 3px;
    font-size: 11px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--vscode-text);
}

.filter-btn:hover {
    background: var(--vscode-list-hover);
    border-color: var(--vscode-focus-border);
}

.filter-btn.active {
    background: var(--vscode-button-bg);
    border-color: var(--vscode-button-bg);
    color: white;
}

.filter-btn.active .badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Stats Bar */
.stats-bar {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.5rem 1rem;
    display: flex;
    gap: 1.5rem;
    background: var(--vscode-editor-bg);
    border-bottom: 1px solid var(--vscode-border);
}

.stat {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.stat-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--vscode-number);
    font-family: 'Consolas', 'Courier New', monospace;
}

.stat-label {
    font-size: 12px;
    color: var(--vscode-text-muted);
}

/* Landscape Grid - VS Code Explorer Style */
.landscape {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
    background: var(--vscode-editor-bg);
}

/* Category Section - VS Code Collapsible Section */
.category {
    margin-bottom: 1px;
    background: var(--vscode-sidebar-bg);
    border: 1px solid var(--vscode-border);
    border-radius: 0;
    overflow: hidden;
}

.category-header {
    padding: 8px 12px;
    background: #37373d;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
    border-left: 2px solid transparent;
}

.category-header:hover {
    background: #3c3c3c;
}

.category-header.users {
    border-left-color: var(--vscode-type);
}

.category-header.developers {
    border-left-color: var(--vscode-keyword);
}

.category-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--vscode-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-count {
    background: var(--vscode-input-bg);
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 500;
    color: var(--vscode-text-muted);
}

.category-toggle {
    color: var(--vscode-text-muted);
    opacity: 0.7;
    transition: var(--transition);
    width: 16px;
    height: 16px;
}

.category-header:hover .category-toggle {
    opacity: 1;
}

.category.collapsed .category-toggle {
    transform: rotate(-90deg);
}

.category.collapsed .category-content {
    display: none;
}

.category-content {
    padding: 12px;
    background: var(--vscode-sidebar-bg);
}

/* Subcategory - VS Code Section */
.subcategory {
    margin-bottom: 12px;
}

.subcategory:last-child {
    margin-bottom: 0;
}

.subcategory-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--vscode-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
    padding-left: 2px;
    border-bottom: 1px solid var(--vscode-border);
    padding-bottom: 4px;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 8px;
}

/* Tool Card - VS Code List Item Style */
.tool-card {
    background: var(--vscode-editor-bg);
    border: 1px solid var(--vscode-border);
    border-radius: 3px;
    padding: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.tool-card:hover {
    background: var(--vscode-list-hover);
    border-color: var(--vscode-focus-border);
}

.tool-card:active {
    background: var(--vscode-list-active);
}

.tool-card.hidden {
    display: none;
}

.tool-icon {
    width: 36px;
    height: 36px;
    border-radius: 3px;
    background: var(--vscode-input-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--vscode-keyword);
    font-weight: 600;
    overflow: hidden;
    font-family: 'Consolas', 'Courier New', monospace;
}

.tool-icon img {
    width: 24px;
    height: 24px;
    object-fit: contain;
    border-radius: 2px;
}

.tool-name {
    font-size: 11px;
    font-weight: 500;
    color: var(--vscode-text);
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Badges - Accessible Tag Style */
.badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-family: 'Consolas', 'Courier New', monospace;
    border: 1px solid;
}

.badge-oss {
    background: rgba(78, 201, 176, 0.15);
    color: var(--color-oss);
    border-color: rgba(78, 201, 176, 0.4);
}

.badge-saas {
    background: rgba(86, 156, 214, 0.15);
    color: var(--color-saas);
    border-color: rgba(86, 156, 214, 0.4);
}

.badge-commercial {
    background: rgba(220, 220, 170, 0.15);
    color: var(--color-commercial);
    border-color: rgba(220, 220, 170, 0.4);
}

/* Tooltip - VS Code Hover Style */
.tooltip {
    position: fixed;
    background: #252526;
    color: var(--vscode-text);
    padding: 8px 10px;
    border-radius: 3px;
    font-size: 12px;
    max-width: 280px;
    z-index: 1000;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.1s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--vscode-border);
}

.tooltip.visible {
    opacity: 1;
}

.tooltip-title {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--vscode-variable);
}

.tooltip-desc {
    color: var(--vscode-text);
    font-size: 11px;
    line-height: 1.4;
}

.tooltip-link {
    display: block;
    margin-top: 6px;
    font-size: 10px;
    color: var(--vscode-text-link);
    font-family: 'Consolas', 'Courier New', monospace;
}

/* Footer - Dark Theme Style */
.footer {
    background: var(--vscode-sidebar-bg);
    color: var(--vscode-text);
    margin-top: 0;
    border-top: 1px solid var(--vscode-focus-border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.footer-section h3 {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--vscode-text);
}

.footer-section p {
    font-size: 12px;
    color: var(--vscode-text-muted);
    line-height: 1.5;
}

.footer-section a {
    color: var(--vscode-text-link);
    text-decoration: underline;
}

.footer-section a:hover {
    color: var(--vscode-text-link);
}

.legend {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    font-size: 11px;
    color: var(--vscode-text-muted);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.legend .badge {
    margin-right: 2px;
}

.footer-bottom {
    background: var(--vscode-editor-bg);
    padding: 8px 1rem;
    text-align: center;
    border-top: 1px solid var(--vscode-border);
}

.footer-bottom p {
    font-size: 11px;
    color: var(--vscode-text-muted);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--vscode-text-muted);
}

.empty-state-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.empty-state-text {
    font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        padding: 0.5rem;
    }

    .hero {
        padding: 1.5rem 1rem;
    }

    .hero-search {
        max-width: 90%;
    }

    .hero-search .search-input {
        font-size: 14px;
    }

    .hero-title {
        font-size: 20px;
    }

    .hero-subtitle {
        font-size: 13px;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
        padding: 0.75rem;
    }

    .track-toggle {
        justify-content: center;
    }

    .track-btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .filters {
        justify-content: center;
        flex-wrap: wrap;
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .stats-bar {
        justify-content: center;
        padding: 0.75rem;
    }

    .landscape {
        padding: 0.75rem;
    }

    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
        gap: 8px;
    }

    .tool-card {
        padding: 12px 8px;
        min-height: 80px;
    }

    .tool-icon {
        width: 32px;
        height: 32px;
    }

    .tool-name {
        font-size: 11px;
    }

    .category-header {
        padding: 10px 12px;
    }

    .category-title {
        font-size: 13px;
    }
}

/* Animation for initial load */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.category {
    animation: fadeIn 0.2s ease forwards;
}

.category:nth-child(1) { animation-delay: 0.02s; }
.category:nth-child(2) { animation-delay: 0.04s; }
.category:nth-child(3) { animation-delay: 0.06s; }
.category:nth-child(4) { animation-delay: 0.08s; }
.category:nth-child(5) { animation-delay: 0.1s; }
.category:nth-child(6) { animation-delay: 0.12s; }
.category:nth-child(7) { animation-delay: 0.14s; }
.category:nth-child(8) { animation-delay: 0.16s; }
.category:nth-child(9) { animation-delay: 0.18s; }
.category:nth-child(10) { animation-delay: 0.2s; }

/* Print styles */
@media print {
    .header, .controls, .stats-bar, .footer {
        display: none;
    }

    .landscape {
        padding: 0;
    }

    .category {
        break-inside: avoid;
    }

    body {
        background: white;
        color: black;
    }
}

/* Selection - VS Code Style */
::selection {
    background: var(--vscode-list-active);
    color: white;
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 1px solid var(--vscode-focus-border);
    outline-offset: -1px;
}