/* CSS Variables and Base Styles */
:root {
  --color-bg: #0d1117;
  --color-bg-secondary: #161b22;
  --color-bg-tertiary: #21262d;
  --color-border: #30363d;
  --color-text: #c9d1d9;
  --color-text-muted: #8b949e;
  --color-text-emphasis: #f0f6fc;
  --color-link: #58a6ff;
  --color-link-hover: #79c0ff;
  --color-accent: #238636;
  --color-accent-hover: #2ea043;
  --color-danger: #f85149;
  --color-warning: #d29922;
  --color-success: #238636;
  --color-card-bg: #161b22;
  --color-card-hover: #1c2128;
  --border-radius: 6px;
  --border-radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.12), 0 8px 24px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
  --transition: 0.15s ease;
  --container-width: 1200px;
  --header-height: 64px;
}

/* Light mode support */
@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #ffffff;
    --color-bg-secondary: #f6f8fa;
    --color-bg-tertiary: #f0f3f6;
    --color-border: #d0d7de;
    --color-text: #24292f;
    --color-text-muted: #57606a;
    --color-text-emphasis: #1f2328;
    --color-link: #0969da;
    --color-link-hover: #0550ae;
    --color-card-bg: #ffffff;
    --color-card-hover: #f6f8fa;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

a:hover {
  color: var(--color-link-hover);
}

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

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 18px;
  color: var(--color-text-emphasis);
}

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

.logo-icon {
  font-size: 24px;
}

.main-nav {
  display: flex;
  gap: 24px;
}

.main-nav a {
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-text-emphasis);
  border-bottom-color: var(--color-accent);
}

.github-link {
  color: var(--color-text);
  display: flex;
  align-items: center;
}

.github-link:hover {
  color: var(--color-text-emphasis);
}

/* Hero Section */
.hero {
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
  padding: 80px 0 60px;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-text-emphasis);
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-search {
  max-width: 500px;
  margin: 0 auto;
  position: relative;
}

.hero-search input {
  width: 100%;
  padding: 16px 20px;
  font-size: 16px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  color: var(--color-text);
  transition: all var(--transition);
}

.hero-search input:focus {
  outline: none;
  border-color: var(--color-link);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.3);
}

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

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text-emphasis);
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Search Results Dropdown */
.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-top: 8px;
  max-height: 400px;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
}

.search-results.hidden {
  display: none;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition);
}

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

.search-result-item:hover {
  background-color: var(--color-bg-tertiary);
}

.search-result-type {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 12px;
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: capitalize;
}

.search-result-title {
  font-weight: 500;
  color: var(--color-text-emphasis);
}

.search-result-description {
  font-size: 13px;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 300px;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  transition: all var(--transition);
  display: block;
  color: inherit;
}

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

.card-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-emphasis);
  margin-bottom: 8px;
}

.card p {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Quick Links Section */
.quick-links {
  padding: 60px 0;
}

/* Featured Section */
.featured {
  padding: 60px 0;
  background-color: var(--color-bg-secondary);
}

.featured h2 {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text-emphasis);
  margin-bottom: 32px;
  text-align: center;
}

/* Getting Started */
.getting-started {
  padding: 80px 0;
}

.getting-started h2 {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text-emphasis);
  margin-bottom: 48px;
  text-align: center;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 800px;
  margin: 0 auto;
}

.step {
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  background-color: var(--color-accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin: 0 auto 16px;
}

.step h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-emphasis);
  margin-bottom: 8px;
}

.step p {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
}

.site-footer p {
  font-size: 14px;
  color: var(--color-text-muted);
}

.site-footer a {
  color: var(--color-text-muted);
}

.site-footer a:hover {
  color: var(--color-text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--border-radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

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

.btn-secondary {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
  border-color: var(--color-border);
}

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

.btn-icon {
  padding: 8px;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
}

.btn-icon:hover {
  color: var(--color-text);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-emphasis);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.modal-actions {
  display: flex;
  gap: 8px;
}

.modal-body {
  flex: 1;
  overflow: auto;
  padding: 0;
}

.modal-body pre {
  margin: 0;
  padding: 20px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 200px;
}

/* Page Layouts */
.page-header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--color-border);
}

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

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

.page-content {
  padding: 32px 0 60px;
}

/* Search and Filter Bar */
.search-bar {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.search-bar input {
  flex: 1;
  min-width: 250px;
  padding: 12px 16px;
  font-size: 14px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text);
}

.search-bar input:focus {
  outline: none;
  border-color: var(--color-link);
}

.results-count {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

/* Resource List */
.resource-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.resource-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  transition: all var(--transition);
  cursor: pointer;
}

.resource-item:hover {
  background-color: var(--color-card-hover);
  border-color: var(--color-link);
}

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

.resource-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-emphasis);
  margin-bottom: 4px;
}

.resource-description {
  font-size: 14px;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.resource-meta {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.resource-tag {
  font-size: 12px;
  padding: 2px 8px;
  background-color: var(--color-bg-tertiary);
  border-radius: 12px;
  color: var(--color-text-muted);
}

.resource-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* Collection Items */
.collection-items {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.collection-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

.collection-item-kind {
  font-size: 11px;
  padding: 2px 6px;
  background-color: var(--color-bg-tertiary);
  border-radius: 4px;
  text-transform: capitalize;
}

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

.empty-state h3 {
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: 8px;
}

/* Loading State */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  background-color: var(--color-success);
  color: white;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 500;
  z-index: 1100;
  animation: slideIn 0.3s ease;
}

.toast.error {
  background-color: var(--color-danger);
}

@keyframes slideIn {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
  
  .resource-item {
    flex-direction: column;
    align-items: stretch;
  }
  
  .resource-actions {
    justify-content: flex-end;
  }
}

/* Placeholder sections */
.placeholder-section {
  text-align: center;
  padding: 80px 20px;
  background-color: var(--color-bg-secondary);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-lg);
  margin: 20px 0;
}

.placeholder-section h3 {
  font-size: 24px;
  color: var(--color-text-emphasis);
  margin-bottom: 12px;
}

.placeholder-section p {
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* Tools page specific */
.tool-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tool-card h3 {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tool-status {
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 12px;
  font-weight: 500;
}

.tool-status.available {
  background-color: rgba(35, 134, 54, 0.2);
  color: var(--color-success);
}

.tool-status.coming-soon {
  background-color: rgba(210, 153, 34, 0.2);
  color: var(--color-warning);
}