/* General Styles */
:root {
  --pdfmood-primary: #32bfea;
  --pdfmood-secondary: #23282d;
  --pdfmood-light: #f5f5f5;
  --pdfmood-border: #ddd;
  --pdfmood-success: #46b450;
  --pdfmood-error: #dc3232;
  --pdfmood-warning: #ffb900;
  --pdfmood-radius: 8px;
  --pdfmood-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  --pdfmood-transition: all 0.3s ease;
}

.pdfmood-hidden { display: none !important; }

.pdfmood-merge-wrap {
  max-width: 1000px;
  margin: 2rem auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  color: var(--pdfmood-secondary);
  background-color: #fff;
  padding: 2rem;
  border-radius: var(--pdfmood-radius);
  box-shadow: var(--pdfmood-shadow);
  text-align: center;
}

/* File Input Styling */
.pdfmood-file-input-container {
  margin-bottom: 2rem;
}

.pdfmood-file-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
  font-size: 2.5rem;
  color: var(--pdfmood-secondary);
}

.pdfmood-description {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 2rem;
}

.pdfmood-file-upload {
  position: relative;
  margin: 0 auto 2rem;
  max-width: 800px;
}

.pdfmood-file-upload input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.pdfmood-file-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 200px;
  background-color: #fff;
  color: #666;
  border: 2px dashed var(--pdfmood-border);
  border-radius: var(--pdfmood-radius);
  cursor: pointer;
  font-weight: 500;
  transition: var(--pdfmood-transition);
  padding: 2rem;
}

.pdfmood-file-button:hover {
  border-color: var(--pdfmood-primary);
  background-color: rgba(50, 191, 234, 0.03);
}

.pdfmood-file-button::before {
  content: 'Drag & Drop your PDFs here or click to browse';
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.pdfmood-selected-files {
  margin-top: 1rem;
  color: #666;
  font-size: 0.9rem;
}

/* File List Styling */
.pdfmood-file-list-container {
  margin: 1.5rem 0;
  padding: 1.5rem;
  background-color: var(--pdfmood-light);
  border-radius: var(--pdfmood-radius);
}

.pdfmood-file-list-container h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.pdfmood-reorder-hint {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  font-style: italic;
}

.pdfmood-sortable {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pdfmood-file-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  background-color: #fff;
  border: 1px solid var(--pdfmood-border);
  border-radius: var(--pdfmood-radius);
  box-shadow: var(--pdfmood-shadow);
  cursor: move;
  transition: var(--pdfmood-transition);
}

.pdfmood-file-item:hover {
  background-color: #f9f9f9;
}

.pdfmood-sortable-ghost {
  opacity: 0.4;
  background-color: #e0f7fa;
}

.pdfmood-file-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.pdfmood-file-name {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.pdfmood-file-size {
  font-size: 0.8rem;
  color: #666;
}

.pdfmood-remove-file {
  background-color: transparent;
  color: #999;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 0.5rem;
  transition: var(--pdfmood-transition);
}

.pdfmood-remove-file:hover {
  color: var(--pdfmood-error);
}

/* Button Styling */
.pdfmood-button {
  display: inline-block;
  background-color: var(--pdfmood-primary);
  color: white;
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 50px;
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: var(--pdfmood-transition);
  box-shadow: 0 4px 10px rgba(50, 191, 234, 0.3);
  margin: 1rem 0;
}

.pdfmood-button:hover {
  opacity: 0.95;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(50, 191, 234, 0.4);
}

.pdfmood-button:active {
  transform: translateY(0);
  box-shadow: 0 4px 8px rgba(50, 191, 234, 0.3);
}

.pdfmood-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.pdfmood-download-link {
  display: inline-block;
  margin: 1.5rem 0;
  padding: 0.75rem 2rem;
  background-color: #4285f4;
  color: white;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 4px 8px rgba(66, 133, 244, 0.3);
  transition: var(--pdfmood-transition);
}

.pdfmood-download-link:hover {
  background-color: #3367d6;
  box-shadow: 0 6px 12px rgba(66, 133, 244, 0.4);
  transform: translateY(-2px);
}

/* Progress Bar Styling */
.pdfmood-progress {
  margin: 2rem auto;
  max-width: 600px;
  text-align: center;
}

.pdfmood-progress-bar {
  height: 10px;
  background-color: #f0f0f0;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.pdfmood-progress-fill {
  height: 100%;
  background-color: var(--pdfmood-primary);
  width: 0%;
  transition: width 0.3s ease;
}

.pdfmood-progress-text {
  font-size: 0.9rem;
  color: #666;
}

/* Result Area Styling */
.pdfmood-result {
  margin: 2rem auto;
  max-width: 800px;
}

.pdfmood-success-message {
  color: var(--pdfmood-success);
  font-weight: 600;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.pdfmood-preview-container {
  margin: 1.5rem 0;
  border: 1px solid var(--pdfmood-border);
  border-radius: var(--pdfmood-radius);
  overflow: hidden;
}

.pdfmood-preview-title {
  background-color: #f5f5f5;
  padding: 0.75rem 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--pdfmood-border);
}

.pdfmood-preview-iframe {
  width: 100%;
  border: none;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .pdfmood-merge-wrap {
    padding: 1.5rem;
  }
  
  .pdfmood-file-label {
    font-size: 1.5rem;
  }
  
  .pdfmood-file-button {
    min-height: 150px;
  }
  
  .pdfmood-file-button::before {
    font-size: 1rem;
  }
  
  .pdfmood-button {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }

}

/* Progress Bar */
.pdfmood-progress {
  margin: 1.5rem 0;
}

.pdfmood-progress-bar {
  height: 8px;
  background-color: #eee;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.pdfmood-progress-fill {
  height: 100%;
  background-color: var(--pdfmood-primary);
  width: 0%;
  transition: width 0.3s ease;
}

.pdfmood-progress-text {
  font-size: 0.9rem;
  color: #666;
}

/* Result Area */
.pdfmood-result {
  margin-top: 1.5rem;
}

.pdfmood-error {
  color: var(--pdfmood-error);
  background-color: #fde8e8;
  padding: 1rem;
  border-radius: var(--pdfmood-radius);
  margin-bottom: 1rem;
  border-left: 4px solid var(--pdfmood-error);
}

.pdfmood-success {
  color: var(--pdfmood-success);
  background-color: #ecf7ed;
  padding: 1rem;
  border-radius: var(--pdfmood-radius);
  margin-bottom: 1rem;
  border-left: 4px solid var(--pdfmood-success);
}

/* Preview */
.pdfmood-preview-container {
  margin-top: 2rem;
}

.pdfmood-preview-container h3 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.pdfmood-preview-iframe {
  width: 100%;
  border: 1px solid var(--pdfmood-border);
  border-radius: var(--pdfmood-radius);
  box-shadow: var(--pdfmood-shadow);
}

/* Admin Settings Page */
.pdfmood-shortcode-info {
  margin-top: 2rem;
  padding: 1.5rem;
  background-color: #f9f9f9;
  border-radius: var(--pdfmood-radius);
  border-left: 4px solid var(--pdfmood-primary);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .pdfmood-merge-wrap {
    padding: 1.5rem;
    margin: 1rem auto;
  }
  
  .pdfmood-file-upload {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .pdfmood-file-button {
    width: 100%;
    text-align: center;
  }
  
  .pdfmood-selected-files {
    width: 100%;
    padding: 0.5rem 0;
  }
}