/* Clean Modern App Styles */

* {
  box-sizing: border-box;
}

#root {
  max-width: none;
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #f8fafc;
  color: #1e293b;
  line-height: 1.6;
}

.app {
  min-height: 100vh;
  background: #f8fafc;
}

/* Header */
.header {
  background: white;
  border-bottom: 1px solid #e2e8f0;
  padding: 1rem 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #2563eb;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-tabs {
  display: flex;
  gap: 0;
  align-items: center;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
}

.status-badge.online {
  background: #dcfce7;
  color: #166534;
}

.status-badge.offline {
  background: #fee2e2;
  color: #991b1b;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-badge.online .status-dot {
  background: #22c55e;
}

.status-badge.offline .status-dot {
  background: #ef4444;
}

/* Main Content */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  color: #64748b;
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.2s ease;
}

.stat-card:hover {
  border-color: #2563eb;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 0.5rem;
  line-height: 1;
}

.stat-label {
  color: #64748b;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Form Section */
.form-section {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 1rem;
  align-items: end;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
  margin-bottom: 0.5rem;
}

.form-input {
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 1rem;
  transition: all 0.2s ease;
  background: white;
}

.form-input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: #2563eb;
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: #1d4ed8;
}

.btn-secondary {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.btn-secondary:hover:not(:disabled) {
  background: #e2e8f0;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Users Section */
.users-section {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 1.5rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.users-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.user-card {
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 1rem;
  transition: all 0.2s ease;
}

.user-card:hover {
  border-color: #2563eb;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.user-name {
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 0.25rem;
}

.user-email {
  color: #64748b;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.user-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-sm {
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
}

.btn-danger {
  background: #ef4444;
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #dc2626;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: #64748b;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* Loading */
.loading {
  text-align: center;
  padding: 2rem;
  color: #64748b;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid #e2e8f0;
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: inline-block;
  margin-right: 0.5rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Toast Notifications */
.toast {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
  padding: 1rem 1.5rem;
  border-radius: 6px;
  color: white;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  transform: translateY(-100px);
  opacity: 0;
  max-width: 400px;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  background: #22c55e;
}

.toast.error {
  background: #ef4444;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .header-left {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
  }
  
  .header-tabs {
    gap: 0.5rem;
  }
  
  .tab {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .users-grid {
    grid-template-columns: 1fr;
  }
  
  .section-header {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

.tab {
  background: none;
  border: none;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: #64748b;
  border-radius: 6px;
  transition: all 0.2s ease;
  position: relative;
}

.tab:hover {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.05);
}

.tab.active {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.1);
}

/* Overview Content */
.overview-content {
  padding: 2rem 0;
}

.hero-section {
  text-align: center;
  margin-bottom: 4rem;
}

.hero-text h1 {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #64748b;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-item {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.2s ease;
}

.feature-item:hover {
  border-color: #2563eb;
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.15);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-item h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 0.5rem;
}

.feature-item p {
  color: #64748b;
  margin: 0;
}

.tech-stack {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 3rem;
  margin-top: 3rem;
}

.tech-stack h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 2rem;
}

.stack-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.stack-category h3 {
  color: #2563eb;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e2e8f0;
}

.stack-category ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.stack-category li {
  padding: 0.5rem 0;
  color: #4b5563;
  border-bottom: 1px solid #f1f5f9;
}

.stack-category li:last-child {
  border-bottom: none;
}

/* Demo Content */
.demo-content {
  padding: 2rem 0;
}

.demo-content h2 {
  font-size: 2rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 0.5rem;
}

.demo-subtitle {
  color: #64748b;
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

/* API Docs */
.api-docs {
  padding: 2rem 0;
}

.api-docs h2 {
  font-size: 2rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 0.5rem;
}

.api-subtitle {
  color: #64748b;
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

.swagger-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.swagger-iframe-container {
  margin: 2rem 0;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.swagger-iframe-container h3 {
  margin: 0;
  padding: 1rem 1.5rem;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  font-size: 1.1rem;
  color: #475569;
}

.swagger-iframe {
  width: 100%;
  height: 800px;
  border: none;
  display: block;
}

.swagger-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.2s ease;
}

.swagger-card:hover {
  border-color: #2563eb;
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.15);
  transform: translateY(-2px);
}

.swagger-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 0.5rem;
}

.swagger-card p {
  color: #64748b;
  margin-bottom: 1.5rem;
}

.swagger-card .btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.swagger-preview {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
}

.swagger-preview h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 1.5rem;
}

.code-examples {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.example-section h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 0.5rem;
}

.api-features {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 2rem;
}

.api-features h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 1.5rem;
  text-align: center;
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.feature:hover {
  background: #f8fafc;
}

.feature-icon {
  font-size: 2rem;
  line-height: 1;
}

.feature h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 0.25rem;
}

.feature p {
  color: #64748b;
  font-size: 0.875rem;
  margin: 0;
}

.endpoint-section {
  margin-bottom: 3rem;
}

.endpoint-section h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1a202c;
  margin-bottom: 1rem;
}

.endpoint-card {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  overflow: hidden;
}

.endpoint-header {
  background: #f8fafc;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.method {
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.method.get {
  background: #dcfce7;
  color: #166534;
}

.method.post {
  background: #dbeafe;
  color: #1e40af;
}

.method.delete {
  background: #fee2e2;
  color: #991b1b;
}

.endpoint-header code {
  background: #f1f5f9;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.875rem;
}

.endpoint-body {
  padding: 1.5rem;
}

.endpoint-body h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #374151;
  margin: 1.5rem 0 0.5rem 0;
}

.endpoint-body h4:first-child {
  margin-top: 0;
}

.code-block {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: 6px;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  overflow-x: auto;
  margin: 0.5rem 0 1rem 0;
  border: 1px solid #334155;
}

/* Responsive Enhancements */
@media (max-width: 768px) {
  .hero-text h1 {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .stack-items {
    grid-template-columns: 1fr;
  }
  
  .tech-stack {
    padding: 2rem 1.5rem;
  }
  
  .endpoint-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 2.5rem;
  }
  
  .header-left {
    gap: 0.5rem;
  }
  
  .tab {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
  }
}