/* ================================================================
   ADD STROKE TO PDF - Complete Styling
   Version: 1.0
   ================================================================ */

/* ================================================================
   1. CSS VARIABLES (موحدة مع باقي الأدوات)
   ================================================================ */
:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-dark: #1e40af;
    
    --secondary: #f3f4f6;
    --secondary-hover: #e5e7eb;
    
    --success: #10b981;
    --success-hover: #059669;
    --success-light: #d1fae5;
    
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-light: #fee2e2;
    
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    
    --text: #1f2937;
    --text-secondary: #4b5563;
    --text-light: #6b7280;
    --text-white: #ffffff;
    
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-gray: #f1f5f9;
    --bg-dark: #0f172a;
    
    --border: #e5e7eb;
    --border-light: #f1f5f9;
    --border-dark: #d1d5db;
    
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --container-max: 720px;
}

/* ================================================================
   2. TOOL WRAPPER
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

/* ================================================================
   3. UPLOAD AREA
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto 24px;
    border: 2px dashed var(--border-dark);
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    padding: 48px 24px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03), rgba(16, 185, 129, 0.03));
    opacity: 0;
    transition: var(--transition);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area:hover {
    border-color: var(--primary);
    background: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area:hover::before {
    opacity: 1;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15), var(--shadow-lg);
    transform: scale(1.02);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-icon {
    font-size: 56px;
    color: var(--primary);
    opacity: 0.8;
    transition: var(--transition);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area:hover .upload-icon {
    transform: scale(1.1) rotate(-5deg);
    opacity: 1;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.5px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-hint {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--text-white);
    border: none;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
    margin-top: 4px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-btn:active {
    transform: translateY(0px) scale(0.98);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-btn i {
    font-size: 18px;
}

/* ================================================================
   4. PREVIEW BOX
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-box {
    max-width: var(--container-max);
    margin: 0 auto 20px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-box.hidden {
    display: none;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-box:not(.hidden) {
    display: block;
    animation: fadeIn 0.4s ease;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-title::before {
    content: '\f06e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
    color: var(--primary);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .tracking-id {
    font-size: 13px;
    color: var(--text-light);
    background: var(--bg-gray);
    padding: 4px 14px;
    border-radius: 20px;
    font-family: monospace;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-content {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 15px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 20px;
    border: 1px dashed var(--border-dark);
}

/* ================================================================
   5. SETTINGS PANEL
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings {
    max-width: var(--container-max);
    margin: 0 auto 20px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings.hidden {
    display: none;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings:not(.hidden) {
    display: block;
    animation: fadeIn 0.4s ease;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 20px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings h3::before {
    content: '\f53f';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--primary);
    font-size: 22px;
}

/* ================================================================
   6. BORDER STYLE SELECTOR
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-light);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 2px solid var(--border);
    border-radius: 50px;
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn:hover {
    border-color: var(--border-dark);
    background: var(--bg-gray);
    transform: translateY(-2px);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn.active {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn[data-type="solid"]::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 4px;
    background: currentColor;
    border-radius: 2px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn[data-type="dashed"]::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 4px;
    background: repeating-linear-gradient(90deg, currentColor 0px, currentColor 4px, transparent 4px, transparent 8px);
    border-radius: 2px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn[data-type="dotted"]::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 4px;
    background: repeating-linear-gradient(90deg, currentColor 0px, currentColor 2px, transparent 2px, transparent 6px);
    border-radius: 2px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn[data-type="double"]::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 6px;
    background: transparent;
    border-top: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
}

/* ================================================================
   7. OPTIONS GRID
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px 30px;
    margin-bottom: 20px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group label {
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border);
    border-radius: 3px;
    outline: none;
    transition: var(--transition);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="color"] {
    width: 100%;
    height: 48px;
    padding: 4px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--bg-white);
    transition: var(--transition);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="color"]:hover {
    border-color: var(--primary);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group select {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background: var(--bg-white);
    transition: var(--transition);
    color: var(--text);
    font-family: inherit;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group select:hover {
    border-color: var(--border-dark);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
    margin-right: 4px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group label:has(input[type="checkbox"]) {
    flex-direction: row;
    gap: 6px;
    font-weight: 400;
    cursor: pointer;
}

/* Fill & Side controls */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group .fill-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group .side-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
}

/* ================================================================
   8. DASH CONTROLS
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 20px 30px;
    padding: 16px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin-top: 4px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls input[type="number"] {
    width: 70px;
    padding: 6px 10px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    background: var(--bg-white);
    transition: var(--transition);
    color: var(--text);
    font-family: inherit;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* ================================================================
   9. SAVE / LOAD SETTINGS BUTTONS
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="save-settings"],
.tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="load-settings"] {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    margin-top: 12px;
    margin-right: 8px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="save-settings"]:hover,
.tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="load-settings"]:hover {
    background: var(--bg-gray);
    border-color: var(--border-dark);
    transform: translateY(-2px);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="save-settings"]::before {
    content: '\f0c7';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="load-settings"]::before {
    content: '\f0c6';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
}

/* ================================================================
   10. PROGRESS MESSAGE
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="progress-message"] {
    grid-column: 1 / -1;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--bg-light);
    border: 1px solid var(--border);
    margin-top: 8px;
    text-align: center;
}

/* ================================================================
   11. BORDER PREVIEW
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .border-preview {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-page {
    width: 60%;
    max-width: 300px;
    aspect-ratio: 1 / 1.4;
    background: var(--bg-white);
    border-radius: 4px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
}

/* تمثيل الإطار (سيتم التحكم فيه بواسطة JS، لكننا نعطي خلفية) */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-page::after {
    content: 'Preview';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
    opacity: 0.5;
    pointer-events: none;
}

/* ================================================================
   12. ACTION BUTTONS
   ================================================================ */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-buttons {
    max-width: var(--container-max);
    margin: 0 auto 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
    align-items: center;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-buttons.hidden {
    display: none;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-buttons:not(.hidden) {
    display: flex;
    animation: fadeIn 0.4s ease;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--text-white);
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-btn:active {
    transform: scale(0.97);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-btn i {
    font-size: 16px;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-success {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--success), var(--success-hover));
    color: var(--text-white);
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.45);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-success.hidden {
    display: none;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-success:not(.hidden) {
    display: inline-flex;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    background: var(--secondary);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-secondary:hover {
    background: var(--secondary-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-secondary:active {
    transform: scale(0.97);
}

/* ================================================================
   13. ANIMATIONS
   ================================================================ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

/* ================================================================
   14. RESPONSIVE DESIGN
   ================================================================ */
@media (max-width: 992px) {
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .options-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 768px) {
    .tool-wrapper[data-tool="add-stroke-to-pdf"] {
        padding: 0 12px 30px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area {
        padding: 32px 16px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-text {
        font-size: 18px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-hint {
        font-size: 13px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-icon {
        font-size: 42px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-btn {
        padding: 10px 24px;
        font-size: 14px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings {
        padding: 20px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings h3 {
        font-size: 18px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .action-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .action-btn,
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-success,
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-secondary {
        justify-content: center;
        width: 100%;
        padding: 12px 20px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-selector {
        justify-content: center;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-box {
        padding: 16px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-content {
        min-height: 150px;
        font-size: 14px;
        padding: 16px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-page {
        width: 80%;
    }
    
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group .side-controls {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-text {
        font-size: 16px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-icon {
        font-size: 36px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-btn {
        padding: 8px 18px;
        font-size: 13px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings {
        padding: 16px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .options-grid input[type="range"],
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .options-grid select {
        padding: 8px 12px;
        font-size: 13px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn {
        padding: 6px 12px;
        font-size: 12px;
        border-radius: 30px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls input[type="number"] {
        width: 60px;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-content {
        min-height: 120px;
        font-size: 13px;
        padding: 12px;
    }
    
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-page {
        width: 90%;
    }
}

/* ================================================================
   15. DARK MODE SUPPORT
   ================================================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-white: #1e293b;
        --bg-light: #0f172a;
        --bg-gray: #1e293b;
        --text: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-light: #94a3b8;
        --border: #334155;
        --border-light: #1e293b;
        --border-dark: #475569;
        --shadow: 0 1px 3px rgba(0,0,0,0.3);
        --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
        --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area {
        background: var(--bg-white);
        border-color: var(--border);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area:hover {
        background: var(--bg-light);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-box {
        background: var(--bg-white);
        border-color: var(--border);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-content {
        background: var(--bg-light);
        border-color: var(--border);
        color: var(--text-light);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings {
        background: var(--bg-white);
        border-color: var(--border);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn {
        background: var(--bg-light);
        border-color: var(--border);
        color: var(--text-secondary);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn:hover {
        background: var(--bg-gray);
        border-color: var(--border-dark);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .border-style-btn.active {
        background: rgba(37, 99, 235, 0.2);
        border-color: var(--primary);
        color: var(--primary);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="range"] {
        background: var(--border);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="color"] {
        background: var(--bg-light);
        border-color: var(--border);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group select {
        background: var(--bg-light);
        border-color: var(--border);
        color: var(--text);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group select:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls {
        background: var(--bg-light);
        border-color: var(--border);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls input[type="number"] {
        background: var(--bg-white);
        border-color: var(--border);
        color: var(--text);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .border-preview {
        background: var(--bg-light);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-page {
        background: var(--bg-white);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-secondary {
        background: var(--bg-gray);
        color: var(--text);
        border-color: var(--border);
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-secondary:hover {
        background: var(--border);
    }
    
    .tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="save-settings"],
    .tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="load-settings"] {
        background: var(--bg-light);
        border-color: var(--border);
        color: var(--text-secondary);
    }
    
    .tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="save-settings"]:hover,
    .tool-wrapper[data-tool="add-stroke-to-pdf"] [data-role="load-settings"]:hover {
        background: var(--bg-gray);
    }
}

/* ================================================================
   16. RTL SUPPORT
   ================================================================ */
[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .upload-area:hover .upload-icon {
    transform: scale(1.1) rotate(5deg);
}

[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-header {
    flex-direction: row-reverse;
}

[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .action-btn i,
[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-success i,
[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .btn-secondary i {
    margin-left: 4px;
    margin-right: 0;
}

[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group label:has(input[type="checkbox"]) {
    flex-direction: row-reverse;
}

[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .dash-controls label {
    flex-direction: row-reverse;
}

[dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .option-group input[type="checkbox"] {
    margin-right: 0;
    margin-left: 4px;
}

@media (max-width: 768px) {
    [dir="rtl"] .tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ================================================================
   ADD STROKE TO PDF - Layout (Left: Settings, Right: Preview)
   ================================================================ */

.tool-wrapper[data-tool="add-stroke-to-pdf"] .main-content-row {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: flex-start;
    margin-top: 0;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .left-column {
    flex: 2;
    min-width: 0; /* لمنع الفائض */
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .right-column {
    flex: 1;
    min-width: 300px;
    max-width: 40%; /* تجعل المعاينة أصغر قليلاً */
    position: sticky;
    top: 20px;
    align-self: flex-start;
}

/* ===== ضبط عرض الإعدادات والمعاينة ===== */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .tool-settings {
    margin: 0;
    width: 100%;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-box {
    margin: 0;
    width: 100%;
    max-height: 600px;
    overflow-y: auto;
}

/* ===== معاينة المحتوى داخل اليمين ===== */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-content {
    min-height: 200px;
    max-height: 500px;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-wrapper[data-tool="add-stroke-to-pdf"] .preview-content canvas {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* ===== الأزرار أسفل الكل ===== */
.tool-wrapper[data-tool="add-stroke-to-pdf"] .action-buttons {
    margin: 20px auto 0;
    width: 100%;
    max-width: var(--container-max, 720px);
}

/* ===== استجابة للشاشات الصغيرة ===== */
@media (max-width: 992px) {
    .tool-wrapper[data-tool="add-stroke-to-pdf"] .main-content-row {
        flex-direction: column;
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .right-column {
        max-width: 100%;
        min-width: unset;
        position: static;
        order: -1; /* تظهر المعاينة أولاً في الموبايل */
    }

    .tool-wrapper[data-tool="add-stroke-to-pdf"] .left-column {
        width: 100%;
    }
}