/* ============================================
   Remove PDF Pages Tool Styles
   ============================================ */

/* ===== 1. Tool Wrapper ===== */
.tool-wrapper[data-tool="remove-pdf"] {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}


/* ===== 3. Error Message ===== */
.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 14px 20px;
    border-radius: 8px;
    margin-bottom: 16px;
    display: none;
    font-size: 14px;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

/* ===== 4. Loading Indicator ===== */
.loading-indicator {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px;
    background: #f9fafb;
    border-radius: 12px;
    font-size: 18px;
    color: #4b5563;
    margin-bottom: 20px;
}

.loading-indicator i {
    font-size: 28px;
    color: #2563eb;
}

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

.loading-indicator .fa-spinner {
    animation: spin 1s linear infinite;
}

/* ===== 5. Editor Layout ===== */
.editor-layout.hidden {
    display: none !important;
}

.editor-layout {
    display: block;
    animation: fadeIn 0.4s ease;
}

/* ===== 6. File Info Box ===== */
.file-box {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 20px;
    display: none;
}

.file-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.file-icon {
    font-size: 32px;
    color: #dc2626;
}

.file-name {
    font-weight: 600;
    color: #111827;
    font-size: 16px;
    flex: 1;
    min-width: 150px;
    word-break: break-word;
}

.file-size {
    color: #6b7280;
    font-size: 14px;
    padding: 4px 12px;
    background: #f3f4f6;
    border-radius: 20px;
}

.file-pages {
    color: #4b5563;
    font-size: 14px;
    padding: 4px 12px;
    background: #eff6ff;
    border-radius: 20px;
    color: #2563eb;
}

.remove-file {
    background: none;
    border: none;
    color: #6b7280;
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.2s;
}

.remove-file:hover {
    color: #dc2626;
    background: #fef2f2;
}

/* ===== 7. Toolbar Section ===== */
.toolbar-section {
    display: none;
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    margin-bottom: 20px;
    align-items: center;
}

.toolbar-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.toolbar-group:not(:last-child) {
    border-right: 1px solid #e5e7eb;
    padding-right: 12px;
    margin-right: 4px;
}

.btn-toolbar {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: #fff;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    color: #374151;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-toolbar i {
    font-size: 14px;
}

.btn-toolbar:hover {
    background: #f3f4f6;
    border-color: #9ca3af;
}

.btn-toolbar.primary {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #1d4ed8;
}

.btn-toolbar.primary:hover {
    background: #dbeafe;
    border-color: #60a5fa;
}

.btn-toolbar.danger {
    background: #fef2f2;
    border-color: #fca5a5;
    color: #dc2626;
}

.btn-toolbar.danger:hover {
    background: #fee2e2;
    border-color: #f87171;
}

.btn-toolbar:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.selection-counter {
    display: none;
    padding: 6px 14px;
    background: #2563eb;
    color: #fff;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-left: 4px;
}

/* ===== 8. Pages Container ===== */
.pages-container {
    margin-bottom: 20px;
}

.pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    padding: 4px;
}

/* ===== 9. Page Card ===== */
.page-card {
    background: #fff;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 12px;
    transition: all 0.25s ease;
    cursor: grab;
    position: relative;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.page-card:hover {
    border-color: #9ca3af;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.page-card.selected {
    border-color: #2563eb;
    background: #eff6ff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.page-card.dragging {
    opacity: 0.4;
    transform: scale(0.95);
}

.page-card .page-number {
    position: absolute;
    top: 8px;
    left: 12px;
    font-size: 12px;
    font-weight: 700;
    color: #6b7280;
    background: rgba(255, 255, 255, 0.9);
    padding: 2px 10px;
    border-radius: 12px;
    z-index: 2;
}

.page-card .page-canvas {
    width: 100%;
    height: auto;
    border-radius: 6px;
    display: block;
    transition: transform 0.3s ease;
    background: #fff;
}

.page-card .page-actions {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #f3f4f6;
}

.page-btn {
    width: 34px;
    height: 34px;
    border: 1px solid #e5e7eb;
    background: #f9fafb;
    border-radius: 6px;
    color: #4b5563;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.page-btn:hover {
    background: #f3f4f6;
    border-color: #9ca3af;
}

.page-btn.select-btn:hover {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #2563eb;
}

.page-card.selected .page-btn.select-btn {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

.page-btn.rotate-left-btn:hover {
    background: #fef3c7;
    border-color: #fcd34d;
    color: #d97706;
}

.page-btn.rotate-right-btn:hover {
    background: #fef3c7;
    border-color: #fcd34d;
    color: #d97706;
}

.page-btn.delete-btn:hover {
    background: #fef2f2;
    border-color: #fca5a5;
    color: #dc2626;
}

/* ===== 10. Action Buttons ===== */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px 0;
    border-top: 1px solid #e5e7eb;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
}

.btn i {
    font-size: 16px;
}

.btn-primary {
    background: #2563eb;
    color: #fff;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
}

.btn-secondary:hover {
    background: #e5e7eb;
    transform: translateY(-2px);
}

/* ===== 11. Progress Container ===== */
.progress-container {
    display: none;
    margin: 16px 0;
    padding: 20px;
    background: #f9fafb;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
}

.progress-fill {
    width: 0%;
    height: 8px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 20px;
    transition: width 0.4s ease;
}

.progress-text {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: #4b5563;
    margin-top: 10px;
}

/* ===== 12. Success Message ===== */
.success-message {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: #f0fdf4;
    border: 1px solid #86efac;
    border-radius: 8px;
    color: #16a34a;
    font-weight: 500;
    font-size: 14px;
    margin: 12px 0;
    animation: slideDown 0.3s ease;
}

.success-message i {
    font-size: 20px;
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 14. Responsive Design ===== */
@media (max-width: 768px) {
    .tool-wrapper[data-tool="remove-pdf"] {
        padding: 12px;
    }

    .upload-area {
        padding: 40px 16px;
        min-height: 200px;
    }

    .upload-icon {
        font-size: 48px;
    }

    .upload-text {
        font-size: 20px;
    }

    .upload-hint {
        font-size: 14px;
    }

    .upload-btn {
        padding: 10px 24px;
        font-size: 14px;
    }

    .pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 14px;
    }

    .toolbar-section {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .toolbar-group {
        justify-content: center;
        border-right: none !important;
        padding-right: 0 !important;
        border-bottom: 1px solid #e5e7eb;
        padding-bottom: 10px;
    }

    .toolbar-group:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .btn-toolbar {
        font-size: 12px;
        padding: 6px 12px;
    }

    .file-row {
        flex-wrap: wrap;
        gap: 10px;
    }

    .file-name {
        min-width: 100%;
        order: 2;
    }

    .file-size,
    .file-pages {
        order: 3;
    }

    .remove-file {
        order: 4;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn {
        justify-content: center;
        padding: 12px 20px;
        font-size: 14px;
    }

    .page-card .page-actions {
        gap: 4px;
    }

    .page-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 10px;
    }

    .upload-area {
        padding: 30px 12px;
        min-height: 160px;
    }

    .upload-icon {
        font-size: 36px;
    }

    .upload-text {
        font-size: 18px;
    }

    .toolbar-group {
        flex-wrap: wrap;
    }

    .btn-toolbar {
        font-size: 11px;
        padding: 4px 10px;
    }
}

/* ===== 15. Dark Mode Support ===== */
@media (prefers-color-scheme: dark) {
    .tool-wrapper[data-tool="remove-pdf"] {
        color: #e5e7eb;
    }

    .upload-area {
        border-color: #374151;
        background: #1f2937;
    }

    .upload-area:hover {
        border-color: #6b7280;
        background: #111827;
    }

    .upload-area.drag-over {
        border-color: #3b82f6;
        background: #1e3a5f;
    }

    .upload-text {
        color: #f3f4f6;
    }

    .upload-hint {
        color: #9ca3af;
    }

    .file-box {
        background: #1f2937;
        border-color: #374151;
    }

    .file-name {
        color: #f3f4f6;
    }

    .file-size {
        color: #9ca3af;
        background: #374151;
    }

    .file-pages {
        background: #1e3a5f;
        color: #60a5fa;
    }

    .toolbar-section {
        background: #1f2937;
        border-color: #374151;
    }

    .btn-toolbar {
        background: #374151;
        border-color: #4b5563;
        color: #e5e7eb;
    }

    .btn-toolbar:hover {
        background: #4b5563;
    }

    .btn-toolbar.primary {
        background: #1e3a5f;
        border-color: #3b82f6;
        color: #60a5fa;
    }

    .btn-toolbar.primary:hover {
        background: #1e40af;
    }

    .btn-toolbar.danger {
        background: #7f1d1d;
        border-color: #dc2626;
        color: #fca5a5;
    }

    .btn-toolbar.danger:hover {
        background: #991b1b;
    }

    .page-card {
        background: #1f2937;
        border-color: #374151;
    }

    .page-card:hover {
        border-color: #6b7280;
    }

    .page-card.selected {
        border-color: #3b82f6;
        background: #1e3a5f;
    }

    .page-card .page-number {
        color: #9ca3af;
        background: rgba(31, 41, 55, 0.9);
    }

    .page-card .page-actions {
        border-top-color: #374151;
    }

    .page-btn {
        background: #374151;
        border-color: #4b5563;
        color: #9ca3af;
    }

    .page-btn:hover {
        background: #4b5563;
    }

    .page-btn.select-btn:hover {
        background: #1e3a5f;
        border-color: #3b82f6;
        color: #60a5fa;
    }

    .page-card.selected .page-btn.select-btn {
        background: #3b82f6;
        border-color: #3b82f6;
        color: #fff;
    }

    .btn-secondary {
        background: #374151;
        color: #e5e7eb;
        border-color: #4b5563;
    }

    .btn-secondary:hover {
        background: #4b5563;
    }

    .progress-container {
        background: #1f2937;
        border-color: #374151;
    }

    .progress-text {
        color: #9ca3af;
    }

    .error-message {
        background: #7f1d1d;
        border-color: #dc2626;
        color: #fca5a5;
    }

    .success-message {
        background: #14532d;
        border-color: #22c55e;
        color: #86efac;
    }

    .remove-file:hover {
        color: #f87171;
        background: #7f1d1d;
    }

    .selection-counter {
        background: #3b82f6;
    }
}