:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #0e1117;
  --bg-card: rgba(14, 17, 23, 0.95);
  --bg-code: #161b22;
  --accent-teal: #00d9ff;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-violet: #8b5cf6;
  --border-dim: rgba(0, 217, 255, 0.1);
  --border-light: rgba(0, 217, 255, 0.2);
  --text-primary: #e6edf3;
  --text-secondary: rgba(230, 237, 243, 0.7);
  --text-muted: rgba(230, 237, 243, 0.4);
}

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

body {
  font-family: 'IBM Plex Sans', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

code, pre, .code-block {
  font-family: 'IBM Plex Mono', monospace;
}

/* Background Pattern */
.bg-pattern {
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse 100% 60% at 50% 0%, rgba(0, 217, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 80% 50% at 80% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  z-index: -1;
}

/* App Container */
.app-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.header-content {
  flex: 1;
  min-width: 200px;
}

.app-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.title-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 0 20px rgba(255, 100, 100, 0.5));
}

.app-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 4px;
}

.copy-all-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--accent-teal), var(--accent-violet));
  border: none;
  border-radius: 8px;
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.copy-all-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0, 217, 255, 0.3);
}

.copy-all-btn.copied {
  background: var(--accent-emerald);
}

/* Navigation Tabs */
.tab-nav {
  display: flex;
  gap: 4px;
  background: var(--bg-secondary);
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 24px;
  overflow-x: auto;
  border: 1px solid var(--border-dim);
}

.tab-btn {
  flex: 1;
  min-width: fit-content;
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-secondary);
  background: rgba(0, 217, 255, 0.05);
}

.tab-btn.active {
  background: rgba(0, 217, 255, 0.1);
  color: var(--accent-teal);
  box-shadow: inset 0 0 0 1px var(--border-light);
}

/* Main Content */
.main-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Endpoint Card */
.endpoint-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.endpoint-card:hover {
  border-color: var(--border-light);
}

.endpoint-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-dim);
}

.endpoint-method-path {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.endpoint-path {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
}

.endpoint-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Method Badge */
.method-badge {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.method-get {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.method-post {
  background: rgba(0, 217, 255, 0.15);
  color: var(--accent-teal);
  border: 1px solid rgba(0, 217, 255, 0.3);
}

.method-put {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.method-delete {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

/* Endpoint Section */
.endpoint-section {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-dim);
}

.endpoint-section h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

/* Parameters Table */
.params-table-wrapper {
  overflow-x: auto;
}

.params-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.params-table th {
  text-align: left;
  padding: 8px 12px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-dim);
}

.params-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border-dim);
  vertical-align: top;
}

.params-table tr:last-child td {
  border-bottom: none;
}

.param-name code {
  background: var(--bg-code);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--accent-teal);
  font-size: 0.85rem;
}

.param-type {
  color: var(--accent-violet);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
}

.param-badge {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
}

.param-badge.required {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
}

.param-badge.optional {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
}

.param-desc {
  color: var(--text-secondary);
}

.param-example {
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.param-example code {
  background: var(--bg-code);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent-amber);
}

/* Collapsible Section */
.collapsible-section {
  border-bottom: 1px solid var(--border-dim);
}

.collapsible-section:last-child {
  border-bottom: none;
}

.collapsible-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease;
}

.collapsible-header:hover {
  background: rgba(0, 217, 255, 0.03);
}

.collapsible-content {
  padding: 0 24px 20px;
}

/* Schema Container */
.schema-container {
  background: var(--bg-code);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-dim);
}

.schema-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border-dim);
}

.schema-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Code Block */
.code-block {
  padding: 16px;
  margin: 0;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--text-secondary);
  white-space: pre;
}

.json-key {
  color: #7ee787;
}

.json-string {
  color: #a5d6ff;
}

.json-number {
  color: #79c0ff;
}

.json-boolean {
  color: #ff7b72;
}

.json-null {
  color: #ffa657;
}

/* Copy Button */
.copy-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  color: var(--accent-teal);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  background: rgba(0, 217, 255, 0.2);
}

.copy-btn.copied {
  background: rgba(16, 185, 129, 0.2);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
}

/* Code Example Section */
.code-example-section {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 16px;
  padding: 24px;
}

.code-example-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.code-example-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

/* Footer */
.app-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-dim);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--accent-teal);
}

.footer-link.remix {
  color: var(--accent-violet);
}

.footer-link.remix:hover {
  color: var(--accent-teal);
}

.footer-divider {
  color: var(--text-muted);
  opacity: 0.3;
}

/* Responsive */
@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .copy-all-btn {
    width: 100%;
    justify-content: center;
  }
  
  .tab-nav {
    flex-wrap: nowrap;
  }
  
  .tab-btn {
    padding: 10px 14px;
    font-size: 0.8rem;
  }
  
  .endpoint-header,
  .endpoint-section,
  .collapsible-header,
  .collapsible-content {
    padding-left: 16px;
    padding-right: 16px;
  }
  
  .app-title {
    font-size: 1.5rem;
  }
  
  .params-table th,
  .params-table td {
    padding: 8px;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .app-container {
    padding: 16px 12px;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 8px;
  }
  
  .footer-divider {
    display: none;
  }
}