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

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #06b6d4;
    --purple: #8b5cf6;
    
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --white: #ffffff;
    --black: #000000;
    
    --sidebar-width: 260px;
    --header-height: 80px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    color: var(--gray-900);
    line-height: 1.6;
    overflow-x: hidden;
}

/* App Layout */
.app {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
}

.logo i {
    color: var(--primary);
    font-size: 24px;
}

.nav-menu {
    list-style: none;
    padding: 24px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--gray-600);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}

.nav-item.active {
    background: linear-gradient(90deg, var(--primary) 0%, transparent 100%);
    color: var(--primary);
    border-right: 3px solid var(--primary);
}

.nav-item i {
    font-size: 18px;
    width: 20px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px;
    min-height: 100vh;
}

/* Page */
.page {
    display: none;
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.page-header p {
    color: var(--gray-600);
    font-size: 16px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--white);
}

.stat-icon.clients { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.stat-icon.servers { background: linear-gradient(135deg, var(--secondary), #059669); }
.stat-icon.categories { background: linear-gradient(135deg, var(--purple), #7c3aed); }
.stat-icon.stars { background: linear-gradient(135deg, var(--warning), #d97706); }

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.stat-label {
    color: var(--gray-600);
    font-weight: 500;
    margin-top: 4px;
}

/* Charts */
.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.chart-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.chart-card h3 {
    margin-bottom: 16px;
    color: var(--gray-900);
    font-weight: 600;
}

.chart-card canvas {
    max-height: 300px;
}

/* Top Projects */
.top-projects {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.top-projects h3 {
    margin-bottom: 8px;
    color: var(--gray-900);
    font-weight: 600;
}

.performance-note {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-size: 12px;
    margin-bottom: 16px;
}

.performance-note i {
    font-size: 14px;
}

.project-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
    transition: all 0.2s ease;
    cursor: pointer;
}

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

.project-item:hover {
    background: var(--gray-50);
    margin: 0 -16px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
}

.project-rank {
    font-weight: 700;
    color: var(--primary);
    font-size: 14px;
    min-width: 28px;
    flex-shrink: 0;
}

.project-github {
    flex: 1;
    min-width: 0;
}

.project-github a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.2s ease;
}

.project-github a:hover {
    color: var(--primary);
}

.project-github a i {
    color: var(--gray-500);
    font-size: 16px;
    flex-shrink: 0;
}

.project-stars {
    color: var(--gray-600);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
    flex-shrink: 0;
    min-width: 60px;
    justify-content: flex-end;
}

.project-stars i {
    color: var(--warning);
}

/* Search Controls */
.search-controls {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    margin-bottom: 24px;
}

.search-box {
    position: relative;
    margin-bottom: 16px;
}

.search-box i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 48px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 16px;
    background: var(--white);
    transition: all 0.2s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.filters {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.filters select {
    padding: 10px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--white);
    font-size: 14px;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s ease;
}

.filters select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Search Results */
.search-results {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-200);
}

#results-count {
    color: var(--gray-600);
    font-weight: 500;
}

.view-toggle {
    display: flex;
    gap: 8px;
}

.view-btn {
    padding: 8px 12px;
    border: 2px solid var(--gray-200);
    background: var(--white);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--gray-600);
}

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

.view-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    min-height: 200px;
}

.results-grid.list-view {
    grid-template-columns: 1fr;
}

.results-grid.list-view .project-card {
    height: auto;
    flex-direction: row;
    align-items: flex-start;
    padding: 16px 20px;
}

.results-grid.list-view .project-header {
    flex: 1;
    margin-right: 20px;
}

.results-grid.list-view .project-meta {
    flex-direction: row;
    align-items: center;
    gap: 20px;
    flex: none;
    min-width: 300px;
}

.results-grid.list-view .project-tags {
    margin-top: 0;
    flex: 1;
}

/* Pagination */
.pagination-container {
    margin-top: 32px;
    padding: 24px 0;
    border-top: 2px solid var(--gray-100);
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.page-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border: 2px solid var(--gray-200);
    background: var(--white);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 14px;
}

.page-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.page-numbers {
    display: flex;
    gap: 4px;
}

.page-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--gray-200);
    background: var(--white);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 14px;
}

.page-number:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.page-number.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.page-number.ellipsis {
    border: none;
    cursor: default;
    background: transparent;
}

.page-number.ellipsis:hover {
    border: none;
    color: var(--gray-700);
}

.pagination-info {
    text-align: center;
    color: var(--gray-600);
    font-size: 14px;
    font-weight: 500;
}

/* Project Card */
.project-card {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px;
    background: var(--white);
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 16px;
    height: 200px;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-shrink: 0;
}

.project-info {
    flex: 1;
    min-width: 0;
}

.project-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-author {
    color: var(--gray-600);
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-type {
    padding: 6px 10px;
    border-radius: var(--radius-md);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
    margin-left: 12px;
}

.project-type.client {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.project-type.server {
    background: linear-gradient(135deg, var(--secondary), #059669);
    color: white;
}

/* Smaller project type badges in stats */
.project-stats .project-type {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-meta {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.project-stats {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: var(--gray-600);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.stat-item i {
    color: var(--gray-400);
    font-size: 12px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: auto;
}

.tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
    border: 1px solid var(--gray-200);
}

.tag.more {
    background: var(--gray-200);
    color: var(--gray-500);
    font-weight: 600;
}

.category-badge {
    background: linear-gradient(135deg, var(--purple), #7c3aed);
    color: var(--white);
    padding: 4px 10px;
    border-radius: var(--radius-md);
    font-size: 11px;
    font-weight: 600;
    text-transform: capitalize;
    display: inline-block;
    align-self: flex-start;
    box-shadow: 0 2px 4px rgba(139, 92, 246, 0.3);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-2xl);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h2 {
    color: var(--gray-900);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-400);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.modal-body {
    padding: 24px;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

@media (min-width: 600px) {
    .modal-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.modal-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 14px;
}

.info-value {
    color: var(--gray-900);
    font-weight: 500;
}

.external-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s ease;
}

.external-link:hover {
    color: var(--primary-dark);
    transform: translateX(2px);
}

.modal-github h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--gray-900);
    font-weight: 600;
    font-size: 16px;
}

.github-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.github-stat {
    text-align: center;
    padding: 16px 12px;
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all 0.2s ease;
}

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

.github-stat-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.github-stat-label {
    font-size: 12px;
    color: var(--gray-600);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.github-stat-label i {
    font-size: 10px;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 12px 20px;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.github-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.modal-section {
    margin-bottom: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
}

.modal-section:first-child {
    border-top: none;
    padding-top: 0;
}

.modal-section h4 {
    margin-bottom: 12px;
    color: var(--gray-900);
    font-weight: 600;
    font-size: 16px;
}

.description-text {
    line-height: 1.6;
    color: var(--gray-700);
    font-size: 15px;
}

/* Loading States */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Empty States */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--gray-300);
}

.empty-state h3 {
    margin-bottom: 8px;
    color: var(--gray-600);
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 16px;
    }
    
    .page-header h1 {
        font-size: 24px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 16px;
    }
    
    .stat-card {
        padding: 16px;
        gap: 12px;
    }
    
    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .filters select {
        width: 100%;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .project-card {
        height: auto;
        min-height: 160px;
    }
    
    .project-title {
        font-size: 16px;
    }
    
    .project-stats {
        gap: 16px;
    }
    
    .modal-grid {
        grid-template-columns: 1fr;
    }
    
    .github-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .results-grid.list-view .project-card {
        flex-direction: column;
        height: auto;
    }
    
    .results-grid.list-view .project-header {
        margin-right: 0;
        margin-bottom: 12px;
    }
    
    .results-grid.list-view .project-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        min-width: auto;
    }

    /* Pagination mobile styles */
    .pagination {
        flex-direction: column;
        gap: 12px;
    }

    .page-numbers {
        order: -1;
        flex-wrap: wrap;
        justify-content: center;
        max-width: 100%;
    }

    .page-btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .page-number {
        width: 36px;
        height: 36px;
        font-size: 12px;
    }

    .pagination-info {
        font-size: 12px;
    }
}