/**
 * Zobinzo — PDF Tools Stylesheet
 * Mandatory Brand Palette:
 * - Soft background: #F8F9FF
 * - White surfaces: #FFFFFF
 * - Deep navy: #171A2B
 * - Electric violet: #6C4DFF
 * - Light lavender: #EAE5FF
 */

:root {
    --omni-bg-primary: #FFFFFF;
    --omni-bg-secondary: #F8F9FF;
    --omni-text-primary: #171A2B;
    --omni-text-secondary: rgba(23, 26, 43, 0.65);
    --omni-accent: #6C4DFF;
    --omni-accent-hover: #5835F5;
    --omni-accent-light: #EAE5FF;
    --omni-accent-tint: rgba(108, 77, 255, 0.08);
    --omni-lavender: #EAE5FF;
    --omni-border: rgba(23, 26, 43, 0.08);
    --omni-border-hover: rgba(108, 77, 255, 0.28);
    --omni-success: #6C4DFF;
    --omni-success-light: #EAE5FF;
    --omni-danger: #171A2B;
    --omni-danger-light: rgba(23, 26, 43, 0.06);

    --omni-radius-sm: 6px;
    --omni-radius-md: 10px;
    --omni-radius-lg: 14px;
    --omni-radius-xl: 18px;
    --omni-shadow-sm: 0 1px 3px rgba(23, 26, 43, 0.04);
    --omni-shadow-md: 0 4px 16px rgba(23, 26, 43, 0.06);
    --omni-shadow-lg: 0 14px 32px -4px rgba(23, 26, 43, 0.09);
    --omni-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.omni-tool-container {
    max-width: 1200px;
    margin: 2rem auto 4.5rem;
    padding: 0 1.25rem;
    font-family: var(--omni-font-sans);
    color: var(--omni-text-primary);
}

/* ========================================================
   Tool Header
   ======================================================== */
.omni-tool-header {
    text-align: center;
    margin-bottom: 2rem;
}

.omni-tool-header-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--omni-text-secondary);
    margin-bottom: 1rem;
    background: var(--omni-bg-secondary);
    padding: 0.3rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--omni-border);
}

.omni-tool-header-badge a {
    color: var(--omni-accent);
    text-decoration: none;
}

.omni-tool-header-badge a:hover {
    text-decoration: underline;
}

.omni-tool-header-icon {
    width: 52px;
    height: 52px;
    background: var(--omni-accent-light);
    color: var(--omni-accent);
    border-radius: var(--omni-radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.omni-tool-title {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--omni-text-primary);
    margin: 0 0 0.5rem 0;
}

.omni-tool-tagline {
    font-size: 1.05rem;
    color: var(--omni-text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========================================================
   3-Step Progress Stepper
   ======================================================== */
.omni-stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 650px;
    margin: 0 auto 2.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-xl);
    box-shadow: var(--omni-shadow-sm);
}

.omni-step {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    opacity: 0.5;
    transition: all 0.2s ease;
}

.omni-step-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--omni-bg-secondary);
    color: var(--omni-text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    font-weight: 700;
    border: 1px solid var(--omni-border);
}

.omni-step-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--omni-text-secondary);
    white-space: nowrap;
}

.omni-step.is-active {
    opacity: 1;
}

.omni-step.is-active .omni-step-num {
    background: var(--omni-accent);
    color: #FFFFFF;
    border-color: var(--omni-accent);
}

.omni-step.is-active .omni-step-label {
    color: var(--omni-text-primary);
    font-weight: 700;
}

.omni-step.is-completed {
    opacity: 0.9;
}

.omni-step.is-completed .omni-step-num {
    background: var(--omni-success);
    color: #FFFFFF;
    border-color: var(--omni-success);
}

.omni-step-line {
    flex: 1;
    height: 2px;
    background: var(--omni-border);
    margin: 0 1rem;
    min-width: 24px;
}

/* ========================================================
   STAGE A: Initial Dropzone (0 Files)
   ======================================================== */
.omni-dropzone {
    border: 2px dashed var(--omni-border);
    border-radius: var(--omni-radius-xl);
    padding: 4.5rem 2rem;
    text-align: center;
    background: var(--omni-bg-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--omni-shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 820px;
    margin: 0 auto;
}

.omni-dropzone:hover,
.omni-dropzone.is-dragging {
    border-color: var(--omni-accent);
    background: var(--omni-bg-secondary);
    box-shadow: var(--omni-shadow-md);
}

.omni-dropzone-icon {
    width: 68px;
    height: 68px;
    background: var(--omni-accent-light);
    color: var(--omni-accent);
    border-radius: var(--omni-radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.omni-dropzone-title {
    font-size: 1.5rem;
    font-weight: 750;
    color: var(--omni-text-primary);
    margin: 0 0 0.4rem 0;
}

.omni-dropzone-subtitle {
    font-size: 0.95rem;
    color: var(--omni-text-secondary);
    margin: 0 0 1.75rem 0;
}

.omni-dropzone-cta {
    margin-bottom: 1.5rem;
}

.omni-supported-pills {
    display: flex;
    gap: 0.5rem;
}

.omni-pill {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--omni-text-secondary);
    background: var(--omni-bg-secondary);
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    border: 1px solid var(--omni-border);
}

/* ========================================================
   STAGE B: WORKSPACE (1+ Files Selected)
   Left: Image Queue | Right: Options Sidebar
   ======================================================== */
.omni-workspace-section {
    margin-bottom: 3rem;
}

.omni-workspace-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 1.75rem;
    align-items: start;
}

/* LEFT COLUMN: Queue Card */
.omni-queue-col {
    min-width: 0;
}

.omni-queue-card {
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-xl);
    padding: 1.75rem;
    box-shadow: var(--omni-shadow-md);
}

.omni-queue-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--omni-border);
    flex-wrap: wrap;
    gap: 1rem;
}

.omni-queue-title {
    font-size: 1.25rem;
    font-weight: 750;
    color: var(--omni-text-primary);
    margin: 0 0 0.25rem 0;
}

.omni-queue-hint {
    font-size: 0.88rem;
    color: var(--omni-text-secondary);
    margin: 0;
}

.omni-queue-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Image Grid */
.omni-image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.15rem;
}

/* Image Card */
.omni-image-card {
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
    box-shadow: var(--omni-shadow-sm);
}

.omni-image-card:hover {
    border-color: var(--omni-border-hover);
    box-shadow: var(--omni-shadow-md);
}

.omni-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.65rem;
    background: var(--omni-bg-secondary);
    border-bottom: 1px solid var(--omni-border);
}

.omni-card-badge {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--omni-accent);
    background: #FFFFFF;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--omni-border);
}

.omni-card-remove {
    background: none;
    border: none;
    color: var(--omni-text-secondary);
    cursor: pointer;
    padding: 3px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.omni-card-remove:hover {
    color: var(--omni-danger);
    background: var(--omni-danger-light);
}

.omni-card-thumb {
    height: 145px;
    background: var(--omni-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    overflow: hidden;
}

.omni-thumb-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 3px;
    box-shadow: 0 1px 4px rgba(23, 26, 43, 0.08);
}

.omni-thumb-placeholder {
    font-size: 2rem;
}

/* PDF Document Thumbnail Card */
.omni-pdf-thumb {
    flex-direction: column;
    gap: 0.5rem;
    background: var(--omni-bg-secondary);
}

.omni-pdf-icon {
    color: var(--omni-accent);
}

.omni-pdf-badge-text {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--omni-accent);
    background: var(--omni-accent-light);
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    letter-spacing: 0.02em;
}

/* Merge Options Sidebar */
.omni-merge-info-card {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--omni-bg-secondary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
}

.omni-merge-info-icon {
    color: var(--omni-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.omni-merge-info-text strong {
    display: block;
    font-size: 0.88rem;
    color: var(--omni-text-primary);
    margin-bottom: 0.2rem;
}

.omni-merge-info-text p {
    font-size: 0.82rem;
    color: var(--omni-text-secondary);
    margin: 0;
    line-height: 1.45;
}

.omni-merge-status-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: #FFFFFF;
    border: 1.5px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    font-size: 0.85rem;
}

.omni-merge-status-label {
    color: var(--omni-text-secondary);
    font-weight: 550;
}

.omni-merge-status-value {
    font-weight: 700;
    color: var(--omni-text-primary);
}

.omni-merge-status-value.is-warning {
    color: var(--omni-danger);
}

.omni-merge-status-value.is-ready {
    color: var(--omni-success);
}

.omni-card-meta {
    padding: 0.65rem 0.75rem;
    border-top: 1px solid var(--omni-border);
    background: var(--omni-bg-primary);
}

.omni-card-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--omni-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.omni-card-size {
    font-size: 0.72rem;
    color: var(--omni-text-secondary);
    margin-top: 2px;
}

.omni-card-footer {
    display: flex;
    border-top: 1px solid var(--omni-border);
    background: var(--omni-bg-secondary);
}

.omni-reorder-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: none;
    border: none;
    padding: 0.45rem 0.35rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--omni-text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.omni-reorder-btn:not(:last-child) {
    border-right: 1px solid var(--omni-border);
}

.omni-reorder-btn:hover:not(:disabled) {
    background: var(--omni-accent-light);
    color: var(--omni-accent);
}

.omni-reorder-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* RIGHT COLUMN: Options Sidebar */
.omni-sidebar-col {
    position: sticky;
    top: 90px;
}

.omni-sidebar-card {
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-xl);
    padding: 1.75rem 1.5rem;
    box-shadow: var(--omni-shadow-md);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.omni-sidebar-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--omni-text-primary);
    margin: 0;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--omni-border);
    letter-spacing: -0.015em;
}

.omni-opt-group {
    display: flex;
    flex-direction: column;
}

.omni-opt-label {
    font-size: 0.88rem;
    font-weight: 650;
    color: var(--omni-text-primary);
    margin-bottom: 0.5rem;
}

/* Page Orientation (Clickable Icons on the Right Side) */
.omni-orientation-picker {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.omni-picker-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 8px;
    border: 1.5px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    background: #FFFFFF;
    color: var(--omni-text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
    gap: 6px;
    font-family: inherit;
}

.omni-picker-btn:hover {
    border-color: var(--omni-border-hover);
    color: var(--omni-text-primary);
    background: var(--omni-bg-secondary);
}

.omni-picker-btn.is-active {
    border-color: var(--omni-accent);
    background: var(--omni-accent-light);
    color: var(--omni-accent);
    font-weight: 700;
    box-shadow: 0 0 0 1px var(--omni-accent);
}

.omni-picker-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.omni-picker-text {
    font-size: 0.82rem;
    font-weight: inherit;
}

/* Page Size Dropdown */
.omni-select-wrap {
    position: relative;
    width: 100%;
}

.omni-select {
    width: 100%;
    padding: 0.7rem 2rem 0.7rem 0.85rem;
    border: 1.5px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    font-size: 0.88rem;
    color: var(--omni-text-primary);
    background: #FFFFFF;
    appearance: none;
    cursor: pointer;
    outline: none;
    transition: all 0.15s ease;
    font-family: inherit;
}

.omni-select:focus {
    border-color: var(--omni-accent);
    box-shadow: 0 0 0 3px var(--omni-accent-light);
}

.omni-select-caret {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 9px;
    color: var(--omni-text-secondary);
    pointer-events: none;
}

/* Margins Picker */
.omni-margin-picker {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
}

/* Merge Checkbox */
.omni-checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    margin-top: 0.25rem;
}

.omni-checkbox-label input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.omni-checkbox-box {
    width: 20px;
    height: 20px;
    border: 1.5px solid var(--omni-border);
    border-radius: 4px;
    background: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.omni-checkbox-label input:checked + .omni-checkbox-box {
    background: var(--omni-accent);
    border-color: var(--omni-accent);
}

.omni-checkbox-text {
    font-size: 0.86rem;
    color: var(--omni-text-primary);
    font-weight: 500;
    line-height: 1.4;
}

/* Sidebar Convert CTA (Blue Accent) */
.omni-sidebar-cta {
    margin-top: 0.5rem;
}

.omni-btn-xl {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 750;
    border-radius: var(--omni-radius-md);
    box-shadow: 0 4px 14px rgba(108, 77, 255, 0.3);
    transition: all 0.15s ease;
}

.omni-btn-xl:hover:not(:disabled) {
    box-shadow: 0 6px 18px rgba(108, 77, 255, 0.4);
    transform: translateY(-1px);
}

.omni-btn-arrow {
    transition: transform 0.15s ease;
}

.omni-btn-xl:hover .omni-btn-arrow {
    transform: translateX(3px);
}

/* Progress Indicator inside sidebar */
.omni-progress-box {
    margin-top: 0.25rem;
    text-align: center;
}

.omni-progress-track {
    width: 100%;
    height: 7px;
    background: #E5E7EB;
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 0.65rem;
}

.omni-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--omni-accent);
    border-radius: 999px;
    transition: width 0.3s ease;
}

.omni-progress-label-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.omni-progress-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid #E5E7EB;
    border-top-color: var(--omni-accent);
    border-radius: 50%;
    animation: omni-spin 0.8s linear infinite;
    display: inline-block;
}

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

.omni-progress-label {
    font-size: 0.82rem;
    font-weight: 550;
    color: var(--omni-text-secondary);
}

/* ========================================================
   STAGE C: RESULT & SINGLE-USE DOWNLOAD
   ======================================================== */
.omni-result-card {
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-xl);
    padding: 3.5rem 2rem;
    text-align: center;
    box-shadow: var(--omni-shadow-md);
    margin: 1.5rem auto 2.5rem;
    max-width: 760px;
}

.omni-result-icon {
    width: 72px;
    height: 72px;
    background: var(--omni-success-light);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.omni-result-title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--omni-text-primary);
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.02em;
}

.omni-result-desc {
    font-size: 1.02rem;
    color: var(--omni-text-secondary);
    max-width: 520px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

.omni-result-badges {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-bottom: 2.25rem;
    flex-wrap: wrap;
}

.omni-result-badge {
    background: var(--omni-bg-secondary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    padding: 0.75rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 140px;
}

.omni-result-badge span {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--omni-text-secondary);
    letter-spacing: 0.05em;
    font-weight: 600;
}

.omni-result-badge strong {
    font-size: 1.2rem;
    color: var(--omni-text-primary);
    margin-top: 0.25rem;
}

.omni-result-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.omni-btn-download {
    min-width: 260px;
}

.omni-btn-download.is-completed {
    background: var(--omni-success) !important;
    border-color: var(--omni-success) !important;
    color: #FFFFFF !important;
    cursor: default;
    box-shadow: none !important;
    transform: none !important;
}

.omni-security-notice {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--omni-text-secondary);
    border-top: 1px solid var(--omni-border);
    padding-top: 1.5rem;
    margin-top: 2rem;
    font-size: 0.85rem;
    max-width: 560px;
}

/* ========================================================
   Generic Buttons & Utilities
   ======================================================== */
.omni-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-weight: 600;
    padding: 0.7rem 1.4rem;
    border-radius: var(--omni-radius-md);
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.15s ease;
    gap: 0.5rem;
}

.omni-btn-primary {
    background: var(--omni-accent);
    color: #FFFFFF;
}

.omni-btn-primary:hover:not(:disabled) {
    background: var(--omni-accent-hover);
}

.omni-btn-secondary {
    background: var(--omni-bg-secondary);
    border: 1px solid var(--omni-border);
    color: var(--omni-text-primary);
}

.omni-btn-secondary:hover {
    border-color: var(--omni-border-hover);
    background: var(--omni-accent-light);
}

.omni-btn-link {
    background: none;
    border: none;
    color: var(--omni-text-secondary);
    padding: 0.4rem 0.6rem;
}

.omni-btn-link:hover {
    color: var(--omni-danger);
    text-decoration: underline;
}

.omni-btn-sm {
    padding: 0.45rem 0.85rem;
    font-size: 0.82rem;
}

.omni-btn-lg {
    padding: 0.9rem 1.85rem;
    font-size: 1rem;
    border-radius: var(--omni-radius-lg);
}

.omni-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Dynamic Alert */
.omni-alert {
    padding: 0.95rem 1.25rem;
    border-radius: var(--omni-radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.92rem;
    line-height: 1.5;
}

.omni-alert-danger {
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    border-left: 4px solid var(--omni-accent);
    color: var(--omni-text-primary);
    box-shadow: var(--omni-shadow-sm);
}

/* PDF Canvas Thumbnails & Drag-and-Drop */
.omni-card-thumb canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 3px;
    box-shadow: 0 1px 4px rgba(23, 26, 43, 0.08);
}

.omni-image-card {
    cursor: grab;
    user-select: none;
}
.omni-image-card:active {
    cursor: grabbing;
}
.omni-image-card.is-dragging {
    opacity: 0.45;
    border-style: dashed;
    border-color: var(--omni-accent);
}
.omni-image-card.is-drag-over {
    border-color: var(--omni-accent);
    transform: scale(1.02);
}

/* Tool Instructions */
.omni-tool-info-section {
    margin-top: 3.5rem;
    border-top: 1px solid var(--omni-border);
    padding-top: 2.5rem;
}

.omni-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.omni-info-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--omni-text-primary);
    margin: 0 0 0.85rem 0;
}

.omni-info-card ol,
.omni-info-card ul {
    padding-left: 1.25rem;
    margin: 0;
    color: var(--omni-text-secondary);
    line-height: 1.75;
    font-size: 0.92rem;
}

/* ========================================================
   Compress PDF Option Cards & Savings Banner
   ======================================================== */
.omni-compression-picker {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.omni-compression-card {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 1rem 1.15rem;
    background: #FFFFFF;
    border: 1.5px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
    position: relative;
    outline: none;
}

.omni-compression-card:hover {
    border-color: var(--omni-accent);
    background: #FAF9FF;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(108, 77, 255, 0.08);
}

.omni-compression-card:focus-visible {
    box-shadow: 0 0 0 3px rgba(108, 77, 255, 0.3);
}

.omni-compression-card.is-active {
    border-color: var(--omni-accent);
    background: var(--omni-accent-light);
    box-shadow: 0 0 0 1px var(--omni-accent), 0 4px 16px rgba(108, 77, 255, 0.12);
}

.omni-comp-radio-circle {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid rgba(23, 26, 43, 0.25);
    margin-top: 2px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFFFFF;
    transition: all 0.2s ease;
}

.omni-compression-card.is-active .omni-comp-radio-circle {
    border-color: var(--omni-accent);
}

.omni-compression-card.is-active .omni-comp-radio-circle::after {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--omni-accent);
}

.omni-comp-content {
    flex: 1;
    min-width: 0;
}

.omni-comp-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.omni-comp-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--omni-text-primary);
    line-height: 1.3;
}

.omni-comp-desc {
    font-size: 0.82rem;
    color: var(--omni-text-secondary);
    line-height: 1.4;
}

.omni-comp-badge {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    background: rgba(23, 26, 43, 0.06);
    color: var(--omni-text-secondary);
    white-space: nowrap;
}

.omni-comp-badge-recommended {
    background: var(--omni-accent);
    color: #FFFFFF;
}

/* Savings result banner */
.omni-savings-banner {
    margin: 1.5rem 0 1.25rem;
    padding: 1.25rem;
    background: var(--omni-bg-secondary);
    border: 1.5px solid var(--omni-accent-light);
    border-radius: var(--omni-radius-lg);
    text-align: center;
}

.omni-savings-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--omni-accent);
    margin-bottom: 0.65rem;
    background: var(--omni-accent-light);
    padding: 0.4rem 1rem;
    border-radius: 999px;
}

.omni-savings-pill.is-neutral {
    color: var(--omni-text-primary);
    background: rgba(23, 26, 43, 0.05);
}

.omni-savings-pill.is-optimized {
    color: #059669;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.omni-savings-compare {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 0.92rem;
    color: var(--omni-text-secondary);
}

.omni-size-old {
    text-decoration: line-through;
    opacity: 0.75;
}

.omni-size-new {
    font-weight: 800;
    color: var(--omni-accent);
    font-size: 1.05rem;
}

.omni-savings-arrow {
    color: var(--omni-accent);
    stroke-width: 2.5;
}

/* ========================================================
   SPLIT PDF: LIVE PREVIEW & CONTROLS
   ======================================================== */
.omni-split-preview-col {
    min-width: 0;
}

.omni-split-preview-card {
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-xl);
    padding: 1.75rem;
    box-shadow: var(--omni-shadow-md);
}

.omni-split-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--omni-border);
    flex-wrap: wrap;
    gap: 1rem;
}

.omni-split-doc-info {
    flex: 1;
    min-width: 200px;
}

.omni-split-doc-badge {
    display: inline-block;
    background: var(--omni-accent-light);
    color: var(--omni-accent);
    font-size: 0.72rem;
    font-weight: 750;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    margin-bottom: 0.4rem;
}

.omni-split-doc-name {
    font-size: 1.25rem;
    font-weight: 750;
    color: var(--omni-text-primary);
    margin: 0 0 0.35rem 0;
    word-break: break-all;
    line-height: 1.3;
}

.omni-split-doc-meta {
    font-size: 0.88rem;
    color: var(--omni-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.omni-split-dot {
    color: rgba(23, 26, 43, 0.3);
}

.omni-split-highlight {
    font-weight: 700;
    color: var(--omni-accent);
}

.omni-split-preview-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.omni-split-preview-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-height: 250px;
}

.omni-split-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 4rem 1rem;
    color: var(--omni-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
}

/* Split Output File Section Card */
.omni-split-section-block {
    background: var(--omni-bg-secondary);
    border: 1.5px solid var(--omni-border);
    border-radius: var(--omni-radius-lg);
    padding: 1.25rem;
    transition: all 0.2s ease;
    position: relative;
}

.omni-split-section-block:hover {
    border-color: var(--omni-border-hover);
    box-shadow: var(--omni-shadow-sm);
}

.omni-split-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.omni-split-file-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 750;
    font-size: 0.96rem;
    color: var(--omni-text-primary);
}

.omni-split-file-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--omni-radius-sm);
    background: var(--omni-accent-light);
    color: var(--omni-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.omni-split-file-range {
    color: var(--omni-text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
}

.omni-split-pages-count-badge {
    background: var(--omni-bg-primary);
    border: 1px solid var(--omni-border);
    color: var(--omni-text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
}

/* Page Thumbnails Row inside a Split Section */
.omni-split-pages-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 1rem;
}

.omni-split-page-card {
    background: var(--omni-bg-primary);
    border: 1.5px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    overflow: hidden;
    box-shadow: var(--omni-shadow-sm);
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
    position: relative;
    user-select: none;
}

.omni-split-page-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--omni-shadow-md);
    border-color: var(--omni-border-hover);
}

.omni-split-page-card.is-clickable {
    cursor: pointer;
}

.omni-split-page-card.is-selected {
    border-color: var(--omni-accent);
    box-shadow: 0 0 0 2px rgba(108, 77, 255, 0.2);
}

.omni-split-page-card.is-excluded {
    opacity: 0.45;
    filter: grayscale(70%);
    border-style: dashed;
    border-color: rgba(23, 26, 43, 0.2);
}

.omni-split-page-card.is-excluded:hover {
    opacity: 0.75;
    filter: none;
}

.omni-split-page-thumb {
    width: 100%;
    height: 155px;
    background: #FAF9FF;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    padding: 0.35rem;
}

.omni-split-page-thumb img,
.omni-split-page-thumb canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 2px;
    box-shadow: 0 1px 4px rgba(23, 26, 43, 0.08);
}

.omni-split-page-number {
    padding: 0.45rem 0.5rem;
    text-align: center;
    font-size: 0.78rem;
    font-weight: 750;
    color: var(--omni-text-primary);
    border-top: 1px solid var(--omni-border);
    background: var(--omni-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
}

/* Select Badge for Extract Mode */
.omni-page-check-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--omni-accent);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
    z-index: 2;
    transition: all 0.15s ease;
}

.omni-split-page-card.is-excluded .omni-page-check-badge {
    background: rgba(23, 26, 43, 0.2);
    color: transparent;
}

/* Split Boundary / Cut Line between output files */
.omni-split-cut-line {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0.25rem 0;
    color: var(--omni-accent);
    font-size: 0.8rem;
    font-weight: 700;
}

.omni-split-cut-line::before,
.omni-split-cut-line::after {
    content: '';
    flex: 1;
    border-top: 2px dashed rgba(108, 77, 255, 0.35);
}

.omni-cut-scissors {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--omni-accent-light);
    color: var(--omni-accent);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ========================================================
   SPLIT CONTROLS & SIDEBAR OPTIONS
   ======================================================== */
.omni-split-mode-tabs {
    display: flex;
    background: var(--omni-bg-secondary);
    border-radius: var(--omni-radius-md);
    padding: 4px;
    gap: 4px;
    border: 1px solid var(--omni-border);
    margin-bottom: 1.25rem;
}

.omni-split-tab-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 0.65rem 0.35rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--omni-text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--omni-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.omni-split-tab-btn:hover {
    color: var(--omni-text-primary);
    background: rgba(108, 77, 255, 0.05);
}

.omni-split-tab-btn.is-active {
    background: var(--omni-bg-primary);
    color: var(--omni-accent);
    font-weight: 750;
    box-shadow: 0 1px 4px rgba(23, 26, 43, 0.08);
}

/* Section Size Stepper */
.omni-stepper-control {
    display: flex;
    align-items: center;
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    overflow: hidden;
    background: var(--omni-bg-primary);
    box-shadow: var(--omni-shadow-sm);
}

.omni-stepper-btn {
    width: 44px;
    height: 44px;
    background: var(--omni-bg-secondary);
    border: none;
    color: var(--omni-text-primary);
    font-size: 1.25rem;
    font-weight: 750;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease, color 0.15s ease;
}

.omni-stepper-btn:hover {
    background: var(--omni-accent-light);
    color: var(--omni-accent);
}

.omni-stepper-input {
    flex: 1;
    border: none;
    text-align: center;
    font-size: 1.15rem;
    font-weight: 750;
    color: var(--omni-text-primary);
    padding: 0.5rem;
    outline: none;
    background: transparent;
    -moz-appearance: textfield;
}

.omni-stepper-input::-webkit-outer-spin-button,
.omni-stepper-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Custom Ranges List */
.omni-ranges-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.6rem;
}

.omni-ranges-list {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    max-height: 250px;
    overflow-y: auto;
    padding-right: 2px;
}

.omni-range-row {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    background: var(--omni-bg-secondary);
    padding: 0.45rem 0.65rem;
    border-radius: var(--omni-radius-md);
    border: 1px solid var(--omni-border);
}

.omni-range-label {
    font-size: 0.78rem;
    font-weight: 750;
    color: var(--omni-text-secondary);
    min-width: 42px;
}

.omni-range-input {
    width: 52px;
    padding: 0.35rem 0.4rem;
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-sm);
    font-size: 0.85rem;
    font-weight: 750;
    text-align: center;
    color: var(--omni-text-primary);
    background: var(--omni-bg-primary);
    outline: none;
    -moz-appearance: textfield;
}

.omni-range-input::-webkit-outer-spin-button,
.omni-range-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.omni-range-input:focus {
    border-color: var(--omni-accent);
}

.omni-range-to {
    font-size: 0.78rem;
    color: var(--omni-text-secondary);
}

.omni-range-remove {
    background: transparent;
    border: none;
    color: var(--omni-text-secondary);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    margin-left: auto;
    transition: all 0.15s ease;
}

.omni-range-remove:hover {
    color: #E53E3E;
    background: rgba(229, 62, 62, 0.1);
}

/* Extract Pages Toolbar */
.omni-extract-toolbar {
    display: flex;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

/* Dynamic Live Split Output Summary Card */
.omni-split-summary-box {
    background: var(--omni-bg-secondary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    padding: 1rem;
}

.omni-summary-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.65rem;
}

.omni-summary-title {
    font-size: 0.92rem;
    font-weight: 750;
    color: var(--omni-text-primary);
}

.omni-summary-badge {
    background: var(--omni-accent);
    color: #FFFFFF;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    letter-spacing: 0.05em;
}

.omni-summary-badge.is-pdf {
    background: #10B981;
}

.omni-summary-items {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    max-height: 150px;
    overflow-y: auto;
}

.omni-summary-items li {
    font-size: 0.8rem;
    color: var(--omni-text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.25rem 0;
    border-bottom: 1px dashed rgba(23, 26, 43, 0.06);
}

.omni-summary-items li:last-child {
    border-bottom: none;
}

.omni-summary-items li strong {
    color: var(--omni-text-primary);
    font-weight: 700;
}

/* Download Results - Split Parts List */
.omni-split-parts-list {
    margin: 1.25rem 0;
    background: var(--omni-bg-secondary);
    border: 1px solid var(--omni-border);
    border-radius: var(--omni-radius-md);
    padding: 0.75rem 1rem;
    max-height: 200px;
    overflow-y: auto;
    text-align: left;
}

.omni-split-part-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--omni-border);
    font-size: 0.85rem;
}

.omni-split-part-item:last-child {
    border-bottom: none;
}

.omni-split-part-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--omni-text-primary);
}

.omni-split-part-right {
    font-size: 0.78rem;
    color: var(--omni-text-secondary);
}

/* ========================================================
   Responsive Media Queries
   ======================================================== */
@media (max-width: 960px) {
    .omni-workspace-grid {
        grid-template-columns: 1fr;
    }
    .omni-sidebar-col {
        position: static;
        width: 100%;
    }
}

@media (max-width: 640px) {
    .omni-tool-title {
        font-size: 1.8rem;
    }
    .omni-dropzone {
        padding: 3rem 1.25rem;
    }
    .omni-step-label {
        display: none;
    }
    .omni-image-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}