/* PDF Merger Styles */
.tool-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.tool-header {
    text-align: center;
    margin-bottom: 3rem;
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.tool-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.tool-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.tool-container {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.tool-input {
    margin-bottom: 2rem;
}

.tool-input label {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.file-upload {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    background: var(--bg-primary);
}

.file-upload:hover {
    border-color: var(--primary-color);
    background: var(--bg-hover);
}

.file-upload.drag-over {
    border-color: var(--primary-color);
    background: var(--bg-hover);
    transform: scale(1.02);
}

.file-upload input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.upload-text {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

.tool-button {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tool-button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.tool-button:disabled {
    background: var(--disabled-color);
    cursor: not-allowed;
    transform: none;
}

.pdf-preview {
    margin-bottom: 2rem;
}

.pdf-preview h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

#fileCount {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    text-align: center;
}

#fileCount p {
    margin: 0;
    font-weight: 600;
    color: var(--text-primary);
}

.preview-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.preview-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.preview-item:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.preview-item-info {
    flex: 1;
}

.preview-item-name {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-item-size {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.preview-item-order {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.preview-item-order span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.preview-item-order input {
    width: 60px;
    padding: 0.25rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    text-align: center;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.preview-thumbnail {
    text-align: center;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.preview-thumbnail img {
    max-width: 100%;
    max-height: 120px;
    border-radius: 4px;
    object-fit: contain;
}

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

.error-thumbnail {
    color: var(--danger-color);
    font-size: 0.9rem;
}

.preview-item-remove {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-container {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.result-container h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--success-color);
    font-size: 1.5rem;
}

.result-info {
    text-align: center;
}

.result-info p {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.download-button {
    background: var(--success-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.download-button:hover {
    background: var(--success-hover);
    transform: translateY(-2px);
}

/* Hide sidebar and ad containers for full-width tool */
.sidebar, .ad-sidebar, .ad-slot-mobile, .ad-box, .ad-space, .ad-banner, .ad-slot {
  display: none !important;
}

.main-content {
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  display: block !important;
}

/* Header logic: only one header per screen */
.desktop-header { display: block; }
.mobile-header { display: none; }
@media (max-width: 768px) {
  .desktop-header { display: none !important; }
  .mobile-header { display: block !important; }
}

/* Ensure search bar and dropdown are visible and styled */
.search-bar { position: relative; }
.search-dropdown, .search-dropdown-mobile {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  z-index: 10;
  display: none;
}
.search-bar:focus-within .search-dropdown,
.search-bar:focus-within .search-dropdown-mobile {
  display: block;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .main-content {
    max-width: 100vw;
    padding: 0 0.5rem;
  }
  .tool-header h1 {
    font-size: 2rem;
  }
  .tool-container {
    padding: 1rem;
  }
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
    .file-upload {
        background: var(--bg-secondary);
    }
    
    .preview-item {
        background: var(--bg-secondary);
    }
    
    .preview-thumbnail {
        background: var(--bg-primary);
    }
}