[data-tool="pdf-dpi-changer"] {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    color: #1f2937;
}

[data-tool="pdf-dpi-changer"] * {
    box-sizing: border-box;
}



[data-tool="pdf-dpi-changer"] .error-message {
    display: none;
    margin: 1rem 0;
    padding: 0.75rem 1.25rem;
    background: #fee2e2;
    color: #991b1b;
    border-radius: 8px;
    border-left: 4px solid #ef4444;
    font-size: 0.95rem;
}

[data-tool="pdf-dpi-changer"] .editor-layout {
    display: none;
    margin-top: 1.5rem;
    animation: fadeSlideUp 0.4s ease;
}

[data-tool="pdf-dpi-changer"] .editor-layout:not(.hidden) {
    display: block;
}

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

[data-tool="pdf-dpi-changer"] .file-box {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-tool="pdf-dpi-changer"] .file-box[style*="display:flex"] {
    display: flex !important;
}

[data-tool="pdf-dpi-changer"] .file-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

[data-tool="pdf-dpi-changer"] .file-name {
    font-weight: 600;
    flex: 1;
    min-width: 120px;
    word-break: break-word;
}

[data-tool="pdf-dpi-changer"] .file-size {
    color: #6b7280;
    font-size: 0.9rem;
}

[data-tool="pdf-dpi-changer"] .remove-file {
    background: transparent;
    border: none;
    color: #9ca3af;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 0.5rem;
    transition: all 0.25s ease;
}

[data-tool="pdf-dpi-changer"] .remove-file:hover {
    color: #ef4444;
    transform: scale(1.1);
}

[data-tool="pdf-dpi-changer"] .tool-settings {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1.75rem 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-tool="pdf-dpi-changer"] .tool-settings h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0 0 1.5rem 0;
}

[data-tool="pdf-dpi-changer"] .tool-settings h3 i {
    color: #4f46e5;
}

[data-tool="pdf-dpi-changer"] .editor-layout:not(.hidden) .tool-settings{
    display:block;
}

[data-tool="pdf-dpi-changer"] .editor-layout:not(.hidden) .action-buttons{
    display:flex;
}

[data-tool="pdf-dpi-changer"] .options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    [data-tool="pdf-dpi-changer"] .options-grid {
        grid-template-columns: 1fr;
    }
}

[data-tool="pdf-dpi-changer"] .option-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

[data-tool="pdf-dpi-changer"] .option-group label {
    font-weight: 500;
    font-size: 0.95rem;
    color: #6b7280;
}

[data-tool="pdf-dpi-changer"] .option-group .form-control {
    padding: 0.6rem 0.9rem;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.25s ease;
    width: 100%;
}

[data-tool="pdf-dpi-changer"] .option-group .form-control:focus {
    outline: none;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

[data-tool="pdf-dpi-changer"] .option-group .range-slider {
    width: 100%;
    margin-top: 0.2rem;
    accent-color: #4f46e5;
    cursor: pointer;
}

[data-tool="pdf-dpi-changer"] .checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    font-weight: 500;
    padding-top: 0.3rem;
}

[data-tool="pdf-dpi-changer"] .checkbox-label input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
    accent-color: #4f46e5;
    cursor: pointer;
}

[data-tool="pdf-dpi-changer"] .action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.75rem;
    justify-content: flex-end;
}

[data-tool="pdf-dpi-changer"] .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.8rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
}

[data-tool="pdf-dpi-changer"] .btn-secondary {
    background: #e5e7eb;
    color: #374151;
}

[data-tool="pdf-dpi-changer"] .btn-secondary:hover {
    background: #d1d5db;
    transform: translateY(-2px);
}

[data-tool="pdf-dpi-changer"] .btn-success {
    background: #10b981;
    color: #fff;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

[data-tool="pdf-dpi-changer"] .btn-success:hover:not(:disabled) {
    background: #059669;
    transform: translateY(-2px);
}

[data-tool="pdf-dpi-changer"] .btn-success:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

[data-tool="pdf-dpi-changer"] .btn-primary {
    background: #4f46e5;
    color: #fff;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
}

[data-tool="pdf-dpi-changer"] .btn-primary:hover:not(:disabled) {
    background: #4338ca;
    transform: translateY(-2px);
}

[data-tool="pdf-dpi-changer"] .btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

[data-tool="pdf-dpi-changer"] .progress-container {
    margin-top: 1.5rem;
    background: #f3f4f6;
    border-radius: 50px;
    overflow: hidden;
    height: 2.2rem;
    position: relative;
    display: flex;
    align-items: center;
}

[data-tool="pdf-dpi-changer"] .progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #4f46e5, #818cf8);
    border-radius: 50px;
    transition: width 0.35s ease;
}

[data-tool="pdf-dpi-changer"] .progress-text {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.9rem;
    font-weight: 500;
    color: #1f2937;
    white-space: nowrap;
}

[data-tool="pdf-dpi-changer"] .results-summary {
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
}

[data-tool="pdf-dpi-changer"] .summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

[data-tool="pdf-dpi-changer"] .summary-card {
    background: #f9fafb;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e5e7eb;
}

[data-tool="pdf-dpi-changer"] .summary-card h4 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #6b7280;
    margin: 0 0 0.4rem 0;
}

[data-tool="pdf-dpi-changer"] .summary-card p {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    [data-tool="pdf-dpi-changer"] {
        color: #f1f5f9;
    }
    [data-tool="pdf-dpi-changer"] .upload-area,
    [data-tool="pdf-dpi-changer"] .file-box,
    [data-tool="pdf-dpi-changer"] .tool-settings {
        background: #1e293b;
        border-color: #334155;
    }
    [data-tool="pdf-dpi-changer"] .upload-area:hover {
        background: #0f172a;
    }
    [data-tool="pdf-dpi-changer"] .upload-text,
    [data-tool="pdf-dpi-changer"] .file-name,
    [data-tool="pdf-dpi-changer"] .tool-settings h3 {
        color: #f1f5f9;
    }
    [data-tool="pdf-dpi-changer"] .upload-hint,
    [data-tool="pdf-dpi-changer"] .file-size,
    [data-tool="pdf-dpi-changer"] .option-group label,
    [data-tool="pdf-dpi-changer"] .summary-card h4 {
        color: #94a3b8;
    }
    [data-tool="pdf-dpi-changer"] .option-group .form-control {
        background: #0f172a;
        color: #f1f5f9;
        border-color: #334155;
    }
    [data-tool="pdf-dpi-changer"] .summary-card {
        background: #0f172a;
        border-color: #334155;
    }
    [data-tool="pdf-dpi-changer"] .progress-container {
        background: #0f172a;
    }
    [data-tool="pdf-dpi-changer"] .progress-text {
        color: #f1f5f9;
    }
    [data-tool="pdf-dpi-changer"] .btn-secondary {
        background: #334155;
        color: #e2e8f0;
    }
    [data-tool="pdf-dpi-changer"] .btn-secondary:hover {
        background: #475569;
    }
    [data-tool="pdf-dpi-changer"] .error-message {
        background: #7f1d1d;
        color: #fecaca;
    }
}