.youtube-url-input {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.input-header {
  text-align: center;
  margin-bottom: 2rem;
}

.input-header h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.input-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.url-form {
  margin-bottom: 2rem;
}

.input-group {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.url-input {
  flex: 1;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
  font-family: var(--font-family);
}

.url-input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.url-input.valid {
  border-color: var(--success-color);
}

.url-input.error {
  border-color: var(--danger-color);
}

.url-input:disabled {
  background: var(--light-bg);
  cursor: not-allowed;
  opacity: 0.6;
}

.submit-btn {
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.submit-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.submit-btn:active {
  transform: translateY(0);
}

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

.spinner {
  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;
}

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

.error-message {
  color: var(--danger-color);
  font-size: 0.9rem;
  padding: 0.5rem;
  background: rgba(239, 68, 68, 0.1);
  border-radius: var(--radius-sm);
  margin-top: 0.5rem;
}

.video-preview {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
  animation: fadeIn 0.3s ease-in-out;
}

.video-preview h4 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.preview-container {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.preview-thumbnail {
  width: 200px;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.preview-info {
  flex: 1;
}

.preview-info p {
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
}

.preview-info small {
  color: var(--text-secondary);
}

.examples {
  background: var(--light-bg);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.examples h4 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.example-urls {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.example-url {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #667eea;
  text-align: left;
  font-family: inherit;
}

.example-url code {
  color: inherit;
  background: none;
  padding: 0;
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace;
}

.example-url:hover {
  background: rgba(102, 126, 234, 0.05);
  border-color: #667eea;
  transform: translateX(4px);
}

.features-info {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.features-info h4 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.features-info ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.features-info li {
  padding: 0.75rem 0;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.features-info li:last-child {
  border-bottom: none;
}

.features-info li:hover {
  padding-left: 0.5rem;
  background: rgba(102, 126, 234, 0.05);
}

/* Responsive */
@media (max-width: 768px) {
  .youtube-url-input {
    padding: 1rem;
  }

  .input-group {
    flex-direction: column;
  }

  .submit-btn {
    width: 100%;
    justify-content: center;
  }

  .preview-container {
    flex-direction: column;
  }

  .preview-thumbnail {
    width: 100%;
  }

  .example-urls {
    font-size: 0.8rem;
  }
}