:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #334155;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

code {
  font-family: 'Courier New', Courier, monospace;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 2rem 0;
  margin-bottom: 2rem;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.main-content {
  padding-bottom: 4rem;
}

.grid {
  display: grid;
  grid-template-columns: 450px 1fr;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.card h2 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text);
}

.required {
  color: var(--error);
  margin-left: 0.25rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input:disabled,
.form-group textarea:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-group small {
  display: block;
  margin-top: 0.5rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.example-types {
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg);
  border-radius: 8px;
}

.example-types strong {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.example-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.example-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--primary);
}

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

.btn {
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
  width: 100%;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner.large {
  width: 48px;
  height: 48px;
  border-width: 4px;
}

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

.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-top: 1rem;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  color: #fca5a5;
}

.docs-list {
  list-style: none;
}

.docs-list li {
  margin-bottom: 0.5rem;
}

.doc-btn {
  width: 100%;
  text-align: left;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
}

.doc-btn:hover {
  background: var(--bg-hover);
  border-color: var(--primary);
}

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

.output-card {
  min-height: 600px;
  position: sticky;
  top: 2rem;
  overflow: hidden;
}

.output-card .markdown-content {
  max-width: 100%;
  overflow-x: hidden;
}

.loading-state {
  text-align: center;
  padding: 4rem 2rem;
}

.loading-state p {
  margin-top: 1rem;
  font-size: 1.1rem;
}

.loading-state small {
  display: block;
  margin-top: 0.5rem;
  color: var(--text-muted);
}

.result-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.badge-info {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
}

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.empty-state p {
  margin-bottom: 0.5rem;
}

.hint {
  font-size: 0.875rem;
}

.markdown-content {
  color: var(--text);
  line-height: 1.8;
  word-wrap: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text);
  word-wrap: break-word;
}

.markdown-content h1 { font-size: 2rem; }
.markdown-content h2 { font-size: 1.5rem; }
.markdown-content h3 { font-size: 1.25rem; }

.markdown-content p {
  margin-bottom: 1rem;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.markdown-content a {
  color: var(--primary);
  text-decoration: none;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.markdown-content a:hover {
  text-decoration: underline;
}

.markdown-content code {
  background: var(--bg);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.875em;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.markdown-content pre {
  background: var(--bg);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1rem 0;
  max-width: 100%;
}

.markdown-content pre code {
  background: none;
  padding: 0;
  white-space: pre;
  word-wrap: normal;
}

.markdown-content ul,
.markdown-content ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.markdown-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-muted);
}

.markdown-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

.markdown-content th,
.markdown-content td {
  padding: 0.75rem;
  border: 1px solid var(--border);
}

.markdown-content th {
  background: var(--bg);
  font-weight: 600;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 4rem;
  text-align: center;
  color: var(--text-muted);
}

.footer a {
  color: var(--primary);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}