/* CSS Variables for Light and Dark Themes */
:root {
  /* Light Theme Colors */
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --secondary-color: #64748b;
  --accent-color: #10b981;
  --background-color: #ffffff;
  --surface-color: #f8fafc;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  
  /* Layout */
  --container-max-width: 1200px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --transition: all 0.2s ease;
}

/* Dark Theme Colors */
[data-theme="dark"] {
  --primary-color: #3b82f6;
  --primary-hover: #60a5fa;
  --secondary-color: #94a3b8;
  --accent-color: #10b981;
  --background-color: #0f172a;
  --surface-color: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: #334155;
  --border-light: #475569;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
  --gradient-primary: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
  --gradient-accent: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
  transition: var(--transition);
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header Styles */
.header {
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.logo i {
  font-size: 1.75rem;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-desktop a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  padding: 0.5rem 0;
  position: relative;
}

.nav-desktop a:hover {
  color: var(--primary-color);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-desktop a:hover::after {
  width: 100%;
}

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

.bookmark-btn, .dark-mode-toggle, .mobile-menu-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
}

.bookmark-btn:hover, .dark-mode-toggle:hover, .mobile-menu-toggle:hover {
  color: var(--primary-color);
  background-color: var(--border-light);
}

.bookmark-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background-color: var(--accent-color);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.375rem;
  border-radius: 10px;
  min-width: 1.25rem;
  text-align: center;
}

.mobile-menu-toggle {
  display: none;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
}

.nav-mobile a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  transition: var(--transition);
  border-bottom: 1px solid var(--border-light);
}

.nav-mobile a:hover {
  color: var(--primary-color);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 0 3rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.search-container {
  max-width: 600px;
  margin: 0 auto;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  z-index: 2;
}

.search-input {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  font-size: 1.125rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  background-color: var(--surface-color);
  color: var(--text-primary);
  transition: var(--transition);
}

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

.search-clear {
  position: absolute;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.search-clear:hover {
  color: var(--text-secondary);
  background-color: var(--border-light);
}

/* Filters Section */
.filters {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-color);
}

.filters-container {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

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

.filter-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.filter-select {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--surface-color);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  min-width: 150px;
}

.filter-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.filter-reset {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.filter-reset:hover {
  background-color: var(--border-light);
  color: var(--text-primary);
}

/* Tools Section */
.tools-section {
  padding: 3rem 0;
}

.tools-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.tools-title {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tools-count {
  color: var(--text-secondary);
  font-size: 1rem;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

/* Tool Card Styles */
.tool-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

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

.tool-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.tool-image {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius);
  background-color: var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-color);
  flex-shrink: 0;
}

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

.tool-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.tool-category {
  font-size: 0.875rem;
  color: var(--text-muted);
  background-color: var(--border-light);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  display: inline-block;
}

.tool-pricing {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  color: white;
}

.tool-pricing.free {
  background-color: var(--accent-color);
}

.tool-pricing.freemium {
  background-color: var(--primary-color);
}

.tool-pricing.paid {
  background-color: var(--secondary-color);
}

.tool-description {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tool-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tool-feature {
  font-size: 0.75rem;
  color: var(--text-muted);
  background-color: var(--border-light);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

.tool-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.tool-bookmark {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.tool-bookmark:hover {
  color: var(--primary-color);
  background-color: var(--border-light);
}

.tool-bookmark.bookmarked {
  color: var(--accent-color);
}

.tool-platforms {
  font-size: 0.75rem;
  color: var(--text-muted);
  flex: 1;
}

/* Loading and No Results States */
.loading {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

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

.no-results {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
}

.no-results i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.no-results h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  background-color: var(--surface-color);
  border-radius: var(--border-radius-lg);
  max-width: 800px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  z-index: 1001;
  box-shadow: var(--shadow-xl);
}

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

.modal-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--text-primary);
  background-color: var(--border-light);
}

.modal-body {
  padding: 1.5rem;
}

/* Modal Content Styles */
.modal-tool-header {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.modal-tool-image {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-lg);
  background-color: var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary-color);
  flex-shrink: 0;
}

.modal-tool-info h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.modal-tool-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.modal-tool-category {
  background-color: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.modal-tool-pricing {
  background-color: var(--accent-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.modal-tool-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.modal-btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

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

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

.modal-btn-secondary:hover {
  background-color: var(--border-light);
}

.modal-section {
  margin-bottom: 2rem;
}

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

.modal-section ul {
  list-style: none;
  padding: 0;
}

.modal-section li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.modal-section li::before {
  content: '✓';
  color: var(--accent-color);
  font-weight: bold;
  flex-shrink: 0;
}

.modal-platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.modal-platform {
  background-color: var(--border-light);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
}

/* Bookmark Panel */
.bookmark-panel {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background-color: var(--surface-color);
  border-left: 1px solid var(--border-color);
  z-index: 1000;
  transition: right 0.3s ease;
  overflow-y: auto;
}

.bookmark-panel.active {
  right: 0;
}

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

.bookmark-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.bookmark-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.bookmark-close:hover {
  color: var(--text-primary);
  background-color: var(--border-light);
}

.bookmark-content {
  padding: 1.5rem;
}

.bookmark-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 0;
}

.bookmark-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.bookmark-item:hover {
  background-color: var(--border-light);
}

.bookmark-item-image {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius);
  background-color: var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  flex-shrink: 0;
}

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

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

.bookmark-item-category {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Footer */
.footer {
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: 3rem 0 2rem;
}

.footer-section h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.footer-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-color);
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--border-light);
  color: var(--text-secondary);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--primary-color);
  color: white;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .nav-desktop {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .nav-mobile.active {
    display: flex;
  }
  
  .filters-container {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }
  
  .filter-group {
    width: 100%;
  }
  
  .filter-select {
    width: 100%;
  }
  
  .tools-grid {
    grid-template-columns: 1fr;
  }
  
  .tools-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .modal-content {
    width: 95%;
    margin: 1rem;
  }
  
  .modal-tool-header {
    flex-direction: column;
    text-align: center;
  }
  
  .modal-tool-actions {
    flex-direction: column;
  }
  
  .bookmark-panel {
    width: 100%;
    right: -100%;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.75rem;
  }
  
  .hero {
    padding: 2rem 0 1.5rem;
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .search-input {
    font-size: 1rem;
    padding: 0.875rem 0.875rem 0.875rem 2.5rem;
  }
  
  .tool-card {
    padding: 1rem;
  }
  
  .modal-body {
    padding: 1rem;
  }
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

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

.slide-in-right {
  animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.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;
}