/* PDF Split Tool Specific Styles */
.pdf-split-tool {
    max-width: 800px;
    margin: 0 auto;
}

.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
    margin-bottom: 2rem;
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--primary-color);
    background: var(--primary-bg);
    transform: translateY(-2px);
}

.file-upload-area .upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

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

.file-upload-area .upload-hint {
    font-size: 0.9rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

.file-input {
    display: none;
}

.file-info {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.file-info h3 {
    margin: 0 0 1rem 0;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.file-details {
    display: grid;
    gap: 0.5rem;
}

.file-detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.file-detail:last-child {
    border-bottom: none;
}

.file-detail span:first-child {
    font-weight: 600;
    color: var(--text-secondary);
}

.file-detail span:last-child {
    color: var(--text-primary);
    font-family: monospace;
}

.split-options {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.split-options h3 {
    margin: 0 0 1rem 0;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.options-grid {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.option-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.option-item:hover {
    background: var(--hover-bg);
    border-color: var(--primary-color);
}

.option-item input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.option-item label {
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
}

.range-inputs,
.custom-inputs {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    margin-top: 1rem;
}

.input-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-group label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    display: block;
}

.input-group input {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-bg);
}

.custom-inputs label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.custom-inputs input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.custom-inputs input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-bg);
}

.hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

.split-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;
    margin-bottom: 2rem;
}

.split-button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.split-button:disabled {
    background: var(--disabled-bg);
    color: var(--disabled-text);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.progress-container {
    display: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-hover));
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    color: var(--text-primary);
    font-weight: 500;
}

.result-container {
    display: none;
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

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

.success-title {
    color: var(--success-text);
    margin: 0 0 0.5rem 0;
    font-size: 1.3rem;
}

.success-message {
    color: var(--success-text);
    margin: 0 0 1.5rem 0;
    opacity: 0.9;
}

.download-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
}

.download-button {
    background: #e53935 !important;
    color: #ffffff !important;
    font-size: 1.15rem;
    font-weight: 700;
    padding: 1rem 2.2rem;
    border-radius: 8px;
    border: none;
    box-shadow: 0 4px 16px rgba(229,57,53,0.10);
    transition: background 0.2s, transform 0.2s;
    margin-top: 1.2rem;
    letter-spacing: 0.03em;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    line-height: 1.2;
    opacity: 1 !important;
    visibility: visible !important;
}

.download-button:hover, 
.download-button:focus,
.download-button:active {
  background: #b71c1c !important;
  transform: translateY(-2px) scale(1.04);
  outline: none;
  color: #ffffff !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.error-container {
    display: none;
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

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

.error-title {
    color: var(--error-text);
    margin: 0 0 0.5rem 0;
    font-size: 1.3rem;
}

.error-message {
    color: var(--error-text);
    margin: 0;
    opacity: 0.9;
}

/* 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: 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;
}

.tool-header h1.tool-title-red,
h1.tool-title-red {
  color: #e53935 !important;
  font-weight: 700;
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.tool-desc {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.seo-keywords-section {
  margin-top: 2rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #e53935;
}

.seo-keywords-section p {
  margin: 0;
  font-size: 0.95rem;
  color: #666;
  line-height: 1.6;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .pdf-split-tool {
        padding: 0 1rem;
    }
    
    .file-upload-area {
        padding: 2rem 1rem;
    }
    
    .file-upload-area .upload-icon {
        font-size: 2.5rem;
    }
    
    .file-upload-area .upload-text {
        font-size: 1.1rem;
    }
    
    .input-group {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .options-grid {
        gap: 0.75rem;
    }
    
    .option-item {
        padding: 0.5rem;
    }
    
    .split-button {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .result-container,
    .error-container {
        padding: 1.5rem;
    }
    
    .success-icon,
    .error-icon {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .file-upload-area {
        padding: 1.5rem 1rem;
    }
    
    .file-upload-area .upload-icon {
        font-size: 2rem;
    }
    
    .file-upload-area .upload-text {
        font-size: 1rem;
    }
    
    .split-options,
    .file-info {
        padding: 1rem;
    }
    
    .split-button {
        padding: 0.75rem 1rem;
    }
    
    .download-links {
        gap: 0.5rem;
    }
    
    .download-button {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
}