/* ================================================================
   ADD NOISE TO PDF - Clean & Organized Styling
   Version: 2.0
   ================================================================ */

/* ------------------------------------------------
   1.  TOOL WRAPPER & LAYOUT
------------------------------------------------ */
.tool-wrapper[data-tool="add-noise-to-pdf"] {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

/* Main flex row: left (settings) + right (preview) */
.tool-wrapper[data-tool="add-noise-to-pdf"] .main-content-row {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    flex-wrap: wrap;
}

/* Left column (60%) */
.tool-wrapper[data-tool="add-noise-to-pdf"] .left-column {
    flex: 0 0 60%;
    min-width: 0;
}

/* Right column (35%) – smaller preview */
.tool-wrapper[data-tool="add-noise-to-pdf"] .right-column {
    flex: 0 0 35%;
    min-width: 280px;
    max-width: 35%;
    position: sticky;
    top: 20px;
    align-self: flex-start;
}

/* ------------------------------------------------
   2.  PREVIEW BOX (inside right column)
------------------------------------------------ */
.tool-wrapper[data-tool="add-noise-to-pdf"] .result-box {
    margin: 0;
    width: 100%;
    max-height: 600px;
    overflow-y: auto;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .result-box.hidden {
    display: none;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .result-box:not(.hidden) {
    display: block;
    animation: fadeIn 0.4s ease;
}

/* Preview header */
.tool-wrapper[data-tool="add-noise-to-pdf"] .preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-light);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .preview-header h3 {
    font-size: 16px;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .preview-header h3 i {
    color: var(--primary);
    font-size: 18px;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .tracking-id {
    font-size: 11px;
    color: var(--text-light);
    background: var(--bg-gray);
    padding: 2px 12px;
    border-radius: 20px;
    font-family: monospace;
}

/* Preview content (canvas or placeholder) */
.tool-wrapper[data-tool="add-noise-to-pdf"] .preview-content {
    min-height: 180px;
    max-height: 480px;
    overflow-y: auto;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    padding: 16px;
    border: 1px dashed var(--border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 14px;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .preview-content canvas,
.tool-wrapper[data-tool="add-noise-to-pdf"] .preview-content img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* ------------------------------------------------
   3.  SETTINGS PANEL (left column)
------------------------------------------------ */
.tool-wrapper[data-tool="add-noise-to-pdf"] .tool-settings {
    margin: 0 0 20px 0;
    width: 100%;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    box-shadow: var(--shadow);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .tool-settings.hidden {
    display: none;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .tool-settings:not(.hidden) {
    display: block;
    animation: fadeIn 0.4s ease;
}
.tool-wrapper[data-tool="add-noise-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-noise-to-pdf"] .tool-settings h3 i {
    color: var(--primary);
    font-size: 22px;
}

/* Noise type selector */
.tool-wrapper[data-tool="add-noise-to-pdf"] .noise-type-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-noise-to-pdf"] .noise-type-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-noise-to-pdf"] .noise-type-btn:hover {
    border-color: var(--border-dark);
    background: var(--bg-gray);
    transform: translateY(-2px);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .noise-type-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-noise-to-pdf"] .noise-type-btn i {
    font-size: 16px;
}

/* Options grid */
.tool-wrapper[data-tool="add-noise-to-pdf"] .options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px 30px;
    margin-bottom: 24px;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.tool-wrapper[data-tool="add-noise-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-noise-to-pdf"] .option-group label i {
    color: var(--primary);
    font-size: 14px;
}
/* Range sliders */
.tool-wrapper[data-tool="add-noise-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-noise-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-noise-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-noise-to-pdf"] .option-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
}
/* Color picker */
.tool-wrapper[data-tool="add-noise-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-noise-to-pdf"] .option-group input[type="color"]:hover {
    border-color: var(--primary);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 2px;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}
/* Select & text inputs */
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group select,
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group input[type="text"] {
    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-noise-to-pdf"] .option-group select:hover,
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group input[type="text"]:hover {
    border-color: var(--border-dark);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group select:focus,
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .option-group .hidden {
    display: none !important;
}

/* Noise preview canvas */
.tool-wrapper[data-tool="add-noise-to-pdf"] .noise-preview {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    text-align: center;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .noise-preview canvas {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-white);
    box-shadow: var(--shadow);
}

/* ------------------------------------------------
   4.  ACTIONS (buttons inside left column)
------------------------------------------------ */
.tool-wrapper[data-tool="add-noise-to-pdf"] .actions {
    margin: 0;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
    align-items: center;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .actions.hidden {
    display: none;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .actions:not(.hidden) {
    display: flex;
    animation: fadeIn 0.4s ease;
}

/* Common button styles */
.tool-wrapper[data-tool="add-noise-to-pdf"] .action-btn,
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn,
.tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    min-width: 160px;
    letter-spacing: 0.3px;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .action-btn i,
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn i,
.tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn i {
    font-size: 16px;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .action-btn:active,
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn:active,
.tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn:active {
    transform: scale(0.97);
}

/* Primary action (Apply Noise) */
.tool-wrapper[data-tool="add-noise-to-pdf"] .primary-action {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(37,99,235,0.35);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .primary-action:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37,99,235,0.45);
}

/* Download button (success) */
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(16,185,129,0.35);
    position: relative;
    overflow: hidden;
    min-width: 180px;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(16,185,129,0.45);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn:hover i {
    transform: translateY(2px) scale(1.1);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn i {
    transition: transform 0.3s ease;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255,255,255,0.25) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn:active::after {
    opacity: 1;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn.hidden {
    display: none !important;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn:not(.hidden) {
    display: inline-flex;
    animation: fadeInUp 0.5s ease;
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: 0 2px 8px rgba(16,185,129,0.15);
}

/* Highlight download (purple) – optional */
.tool-wrapper[data-tool="add-noise-to-pdf"] .highlight-download {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    box-shadow: 0 4px 16px rgba(139,92,246,0.35);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .highlight-download:hover {
    background: linear-gradient(135deg, #7c3aed, #6d28d9);
    box-shadow: 0 8px 30px rgba(139,92,246,0.5);
}

/* Reset button (secondary) */
.tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn {
    background: var(--secondary);
    color: var(--text);
    border: 1px solid var(--border);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn:hover {
    background: var(--secondary-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ------------------------------------------------
   5.  LOADING & ERROR (full width)
------------------------------------------------ */
.tool-wrapper[data-tool="add-noise-to-pdf"] .loading,
.tool-wrapper[data-tool="add-noise-to-pdf"] .error-message {
    max-width: 100%;
    margin: 20px auto 0;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .loading {
    padding: 40px 20px;
    text-align: center;
    background: var(--bg-white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .loading.hidden {
    display: none;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .loading:not(.hidden) {
    display: block;
    animation: fadeIn 0.3s ease;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .loading i {
    font-size: 48px;
    color: var(--primary);
    animation: spin 1s linear infinite;
}

.tool-wrapper[data-tool="add-noise-to-pdf"] .error-message {
    padding: 14px 18px;
    background: var(--danger-light);
    color: #991b1b;
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--danger);
    font-size: 14px;
    display: none;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.3s ease;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .error-message.hidden {
    display: none;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .error-message:not(.hidden) {
    display: flex;
}
.tool-wrapper[data-tool="add-noise-to-pdf"] .error-message i {
    font-size: 18px;
    flex-shrink: 0;
}

/* ------------------------------------------------
   6.  ANIMATIONS (shared)
------------------------------------------------ */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-15px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ------------------------------------------------
   7.  RESPONSIVE
------------------------------------------------ */
@media (max-width: 992px) {
    .tool-wrapper[data-tool="add-noise-to-pdf"] .main-content-row {
        flex-direction: column;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .left-column {
        flex: 1 1 100%;
        width: 100%;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .right-column {
        flex: 1 1 100%;
        max-width: 100%;
        min-width: unset;
        position: static;
        order: -1; /* preview on top on mobile */
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .preview-content {
        min-height: 150px;
        max-height: 300px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .options-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .actions {
        flex-direction: column;
        align-items: stretch;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .action-btn,
    .tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn,
    .tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
        min-width: unset;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .noise-type-selector {
        justify-content: center;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .noise-type-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .preview-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .result-box {
        padding: 16px;
        max-height: none;
    }
}

@media (max-width: 480px) {
    .tool-wrapper[data-tool="add-noise-to-pdf"] {
        padding: 0 12px 30px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .tool-settings {
        padding: 16px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .options-grid input[type="range"],
    .tool-wrapper[data-tool="add-noise-to-pdf"] .options-grid select,
    .tool-wrapper[data-tool="add-noise-to-pdf"] .options-grid input[type="text"] {
        padding: 8px 12px;
        font-size: 13px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .noise-type-btn {
        padding: 6px 12px;
        font-size: 12px;
        border-radius: 30px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .noise-type-btn i {
        font-size: 13px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .preview-content {
        min-height: 120px;
        max-height: 220px;
        padding: 12px;
        font-size: 13px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .preview-header h3 {
        font-size: 14px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn {
        padding: 10px 18px;
        font-size: 14px;
        min-width: 120px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn i {
        font-size: 16px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .primary-action,
    .tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
    .tool-wrapper[data-tool="add-noise-to-pdf"] .loading i {
        font-size: 36px;
    }
}

/* ------------------------------------------------
   8.  RTL SUPPORT
------------------------------------------------ */
[dir="rtl"] .tool-wrapper[data-tool="add-noise-to-pdf"] .preview-header {
    flex-direction: row-reverse;
}
[dir="rtl"] .tool-wrapper[data-tool="add-noise-to-pdf"] .error-message {
    border-left: none;
    border-right: 4px solid var(--danger);
}
[dir="rtl"] .tool-wrapper[data-tool="add-noise-to-pdf"] .noise-type-btn i,
[dir="rtl"] .tool-wrapper[data-tool="add-noise-to-pdf"] .action-btn i,
[dir="rtl"] .tool-wrapper[data-tool="add-noise-to-pdf"] .download-btn i,
[dir="rtl"] .tool-wrapper[data-tool="add-noise-to-pdf"] .secondary-btn i {
    margin-left: 4px;
    margin-right: 0;
}
@media (max-width: 768px) {
    [dir="rtl"] .tool-wrapper[data-tool="add-noise-to-pdf"] .preview-header {
        flex-direction: column;
        align-items: flex-start;
    }
}