.merge-pdf-page {
    background:
        radial-gradient(circle at 8% 0%, rgba(98, 54, 255, 0.06), transparent 28%),
        radial-gradient(circle at 100% 18%, rgba(193, 255, 82, 0.1), transparent 24%),
        #fcfbff;
}

.merge-pdf-page .page-hero {
    background:
        radial-gradient(circle at 88% 12%, rgba(98, 54, 255, 0.12), transparent 34%),
        radial-gradient(circle at 8% 88%, rgba(193, 255, 82, 0.14), transparent 30%),
        transparent;
}

.merge-pdf-page .page-hero p {
    max-width: 54ch;
}

.merge-hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 1.2rem 2rem;
    align-items: center;
}

.merge-hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.merge-hero-visual img {
    display: block;
    width: 100%;
    max-width: 520px;
    height: auto;
}

@media (max-width: 900px) {
    .merge-hero-inner {
        grid-template-columns: 1fr;
    }

    .merge-pdf-page .page-hero p {
        max-width: 72ch;
    }

    .merge-hero-visual img {
        max-width: 420px;
        margin: 0 auto;
    }
}

.merge-pdf-page .section-kicker {
    display: inline-block;
    margin-bottom: 0.45rem;
    color: var(--purple);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.merge-pdf-page .cta {
    padding: 0 0 3.2rem;
    background: transparent;
}

.merge-pdf-page .tool-copy {
    margin-top: 1.4rem;
}

.merge-pdf-page .tool-copy p {
    color: var(--muted);
    max-width: none;
}

.merge-pdf-page .tool-copy p + p {
    margin-top: 0.85rem;
}

.merge-pdf-page .tool-about .section-head {
    text-align: center;
}

.merge-pdf-page .tool-about .section-head h2::after {
    margin-left: auto;
    margin-right: auto;
}

.merge-pdf-page .tool-about-story {
    position: relative;
    overflow: hidden;
    margin-top: 1.6rem;
    padding: 2rem 2rem 1.7rem;
    border-radius: 28px;
    background:
        radial-gradient(circle at 96% 0%, rgba(193, 255, 82, 0.16), transparent 34%),
        linear-gradient(180deg, #ffffff 0%, #fcfbff 100%);
    border: 1px solid rgba(98, 54, 255, 0.12);
    box-shadow: 0 16px 36px rgba(43, 27, 98, 0.07);
}

.merge-pdf-page .tool-about-story::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1.4rem;
    bottom: 1.4rem;
    width: 5px;
    border-radius: 0 8px 8px 0;
    background: linear-gradient(180deg, var(--lime), #8fd400);
}

.merge-pdf-page .tool-about-cols {
    display: grid;
    gap: 1.1rem;
}

.merge-pdf-page .tool-about-cols p {
    max-width: none;
    margin: 0;
    color: #4a4460;
    font-size: 1.02rem;
    line-height: 1.8;
}

.merge-pdf-page .tool-about-cols p:first-child::first-letter {
    float: left;
    margin: 0.08rem 0.4rem 0 0;
    color: var(--purple);
    font-size: 3.1rem;
    font-weight: 800;
    line-height: 0.8;
}

.merge-pdf-page .tool-about-highlight {
    max-width: none;
    margin: 1.35rem 0 0;
    padding: 1.15rem 1.25rem;
    border-radius: 18px;
    background: linear-gradient(90deg, rgba(98, 54, 255, 0.08), rgba(193, 255, 82, 0.12));
    border: 1px solid rgba(98, 54, 255, 0.12);
    color: var(--purple-navy);
    font-size: 1.02rem;
    font-weight: 500;
    line-height: 1.75;
}

@media (max-width: 900px) {
    .merge-pdf-page .tool-about-story {
        padding: 1.4rem 1.15rem 1.25rem;
    }

    .merge-pdf-page .tool-about-cols p:first-child::first-letter {
        font-size: 2.4rem;
    }
}

.merge-pdf-page .know-list {
    display: grid;
    gap: 0.85rem;
    margin-top: 1.4rem;
    list-style: none;
}

.merge-pdf-page .know-list li {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.95rem;
    align-items: flex-start;
    background: #ffffff;
    border: 1px solid rgba(98, 54, 255, 0.1);
    border-radius: 22px;
    padding: 1.15rem 1.2rem;
    box-shadow: var(--shadow);
}

.merge-pdf-page .know-list .value-icon {
    margin-bottom: 0;
}

.merge-pdf-page .know-list strong {
    display: block;
    color: var(--purple-navy);
    margin-bottom: 0.25rem;
}

.merge-pdf-page .know-list p {
    color: var(--muted);
    font-size: 0.92rem;
    margin: 0;
}

.merge-pdf-page .value-icon i {
    font-size: 1.15rem;
    color: var(--purple);
}

.merge-tool {
    padding-bottom: 1rem;
}

.merge-tool .btn-sm {
    padding: 0.5rem 0.9rem;
    font-size: 0.82rem;
}

.merge-tool .btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.merge-upload {
    padding: 0 0 2.4rem;
}

.merge-tool .dropzone {
    max-width: 720px;
    margin: 0 auto;
    background: linear-gradient(180deg, #ffffff 0%, #fcfbff 100%);
    border: 2px dashed #d9cff8;
    border-radius: 26px;
    padding: 3rem 1.5rem 2.2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.merge-tool .dropzone.dragover,
.merge-tool .dropzone:focus-within {
    border-color: var(--purple);
    box-shadow: var(--shadow-hover);
    transform: scale(1.01);
}

.merge-tool .dz-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: linear-gradient(180deg, #f7f3ff, #ece4ff);
    color: var(--purple);
    font-size: 1.7rem;
    box-shadow: 0 8px 16px rgba(98, 54, 255, 0.1);
}

.merge-tool .dropzone h2 {
    color: var(--purple-navy);
    font-size: 1.45rem;
    letter-spacing: -0.03em;
    margin-bottom: 0.4rem;
}

.merge-tool .dropzone p {
    color: var(--muted);
    margin-bottom: 1.15rem;
}

.merge-tool .dz-hint {
    display: block;
    margin-top: 1rem;
    color: var(--muted);
    font-size: 0.8rem;
}

.merge-tool .file-input-hidden {
    display: none;
}

.merge-tool .privacy-note {
    max-width: 680px;
    margin: 1.1rem auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--muted);
    font-size: 0.86rem;
    text-align: center;
}

.merge-tool .privacy-note i {
    color: #3b6d10;
}

.merge-tool .panel-note {
    margin-top: 0.9rem;
    font-size: 0.8rem;
}

.merge-tool .trust-strip {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.4rem 2rem;
    list-style: none;
    margin: 1.6rem auto 0;
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 600;
}

.merge-tool .trust-strip i {
    color: var(--purple);
    margin-right: 0.35rem;
}

.merge-tool .workspace,
.merge-tool .result-section {
    display: none;
    padding: 0 0 3rem;
}

.merge-tool .workspace.active,
.merge-tool .result-section.active {
    display: block;
}

.merge-tool .ws-toolbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-bottom: 1.1rem;
}

.merge-tool .ws-title h2,
.merge-tool .panel h3,
.merge-tool .pe-header h3,
.merge-tool .result-card h2 {
    color: var(--purple-navy);
    letter-spacing: -0.03em;
}

.merge-tool .ws-title h2 {
    font-size: 1.45rem;
}

.merge-tool .ws-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.merge-tool .count-pill {
    background: var(--purple-soft);
    color: var(--purple);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
}

.merge-tool .ws-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: 1.25rem;
    align-items: start;
}

.merge-tool .file-list {
    display: grid;
    gap: 0.75rem;
}

.merge-tool .file-card,
.merge-tool .panel,
.merge-tool .page-editor,
.merge-tool .result-card {
    background: linear-gradient(180deg, #ffffff 0%, #fcfbff 100%);
    border: 1px solid rgba(236, 232, 245, 0.95);
    border-radius: 24px;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.85) inset,
        0 14px 32px rgba(43, 27, 98, 0.07);
}

.merge-tool .file-card {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 0.9rem;
    border-radius: 18px;
}

.merge-tool .file-card.sortable-ghost {
    opacity: 0.4;
}

.merge-tool .file-card:hover {
    border-color: #d9cff8;
}

.merge-tool .drag-handle {
    cursor: grab;
    color: #9b93b3;
    font-size: 1.1rem;
}

.merge-tool .order-badge {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--purple);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.merge-tool .file-thumb {
    width: 56px;
    height: 72px;
    border-radius: 10px;
    background: var(--purple-soft);
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    overflow: hidden;
    flex-shrink: 0;
}

.merge-tool .file-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.merge-tool .file-thumb i {
    color: var(--purple);
    font-size: 1.35rem;
}

.merge-tool .file-meta {
    flex: 1;
    min-width: 0;
}

.merge-tool .fname {
    display: block;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--purple-navy);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.merge-tool .fsub {
    color: var(--muted);
    font-size: 0.78rem;
}

.merge-tool .file-card-actions {
    display: flex;
    gap: 0.35rem;
    flex-shrink: 0;
}

.merge-tool .btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: 10px;
    background: var(--purple-soft);
    border: 0;
    color: var(--purple);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.merge-tool .btn-icon:hover {
    background: #ebe3ff;
}

.merge-tool .btn-icon.danger:hover {
    background: #fdecef;
    color: #9b1c32;
}

.merge-tool .add-more-card {
    width: 100%;
    margin-top: 0.75rem;
    border: 1.5px dashed #d9cff8;
    border-radius: 18px;
    padding: 1rem;
    text-align: center;
    color: var(--purple);
    font-weight: 600;
    font-size: 0.9rem;
    background: #fff;
    cursor: pointer;
    font-family: inherit;
}

.merge-tool .add-more-card:hover {
    background: var(--purple-soft);
}

.merge-tool .panel {
    padding: 1.35rem 1.25rem 1.4rem;
    position: sticky;
    top: 92px;
}

.merge-tool .panel h3 {
    font-size: 1.2rem;
    margin-bottom: 0.9rem;
}

.merge-tool .field {
    margin-bottom: 0.9rem;
}

.merge-tool .field label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--purple-navy);
    margin-bottom: 0.35rem;
}

.merge-tool .field input[type="text"] {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    font: inherit;
    color: var(--text);
    background: #fff;
}

.merge-tool .field input[type="text"]:focus {
    outline: none;
    border-color: rgba(98, 54, 255, 0.5);
    box-shadow: 0 0 0 4px rgba(98, 54, 255, 0.1);
}

.merge-tool .summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.86rem;
    padding: 0.55rem 0;
    border-bottom: 1px dashed var(--border);
    color: var(--muted);
}

.merge-tool .summary-row b {
    color: var(--purple-navy);
}

.merge-tool .merge-btn-wrap {
    margin-top: 1rem;
}

.merge-tool .merge-btn-wrap .btn {
    width: 100%;
}

.merge-tool .page-editor {
    display: none;
    margin-top: 1.1rem;
    padding: 1.25rem;
}

.merge-tool .page-editor.active {
    display: block;
}

.merge-tool .pe-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.merge-tool .pe-header h3 {
    font-size: 1.15rem;
    word-break: break-word;
}

.merge-tool .pe-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.merge-tool .selected-count {
    font-size: 0.8rem;
    color: var(--purple);
    font-weight: 600;
}

.merge-tool .page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.85rem;
    max-height: 520px;
    overflow-y: auto;
}

.merge-tool .page-thumb {
    position: relative;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    background: #fff;
    cursor: pointer;
}

.merge-tool .page-thumb.selected {
    border-color: var(--purple);
    box-shadow: 0 0 0 3px rgba(98, 54, 255, 0.12);
}

.merge-tool .page-thumb.deleted {
    opacity: 0.35;
    filter: grayscale(1);
}

.merge-tool .page-thumb img {
    width: 100%;
    height: 150px;
    object-fit: contain;
    background: #f6f3ff;
    display: block;
}

.merge-tool .pnum {
    text-align: center;
    font-size: 0.74rem;
    color: var(--muted);
    padding: 0.4rem 0;
    font-weight: 600;
}

.merge-tool .pt-check {
    position: absolute;
    top: 6px;
    left: 6px;
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: #fff;
    border: 1.5px solid var(--border);
    display: grid;
    place-items: center;
    font-size: 0.7rem;
    color: var(--purple);
}

.merge-tool .page-thumb.selected .pt-check {
    background: var(--purple);
    border-color: var(--purple);
    color: #fff;
}

.merge-tool .pt-actions {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    gap: 4px;
    opacity: 0;
}

.merge-tool .page-thumb:hover .pt-actions {
    opacity: 1;
}

.merge-tool .pt-mini-btn {
    width: 22px;
    height: 22px;
    border: 0;
    border-radius: 6px;
    background: rgba(43, 27, 98, 0.78);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 0.7rem;
    cursor: pointer;
}

.merge-tool .pt-mini-btn:hover {
    background: var(--purple);
}

.merge-tool .result-card {
    max-width: 640px;
    margin: 0 auto;
    padding: 2rem 1.4rem;
    text-align: center;
}

.merge-tool .result-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 0.8rem;
    border-radius: 50%;
    background: var(--lime);
    color: var(--purple-navy);
    display: grid;
    place-items: center;
    font-size: 1.8rem;
}

.merge-tool .result-card .sub {
    color: var(--muted);
    margin: 0.4rem 0 1.1rem;
}

.merge-tool .result-preview-frame {
    width: 100%;
    height: 280px;
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 1rem;
    background: #f6f3ff;
}

.merge-tool .result-card .field {
    text-align: left;
    max-width: 360px;
    margin: 0 auto 0.9rem;
}

.merge-tool .result-stats {
    display: flex;
    justify-content: center;
    gap: 1.4rem;
    color: var(--muted);
    font-size: 0.86rem;
    margin-bottom: 1.1rem;
}

.merge-tool .result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    justify-content: center;
}

.merge-tool .inline-error {
    display: none;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.9rem;
    padding: 0.75rem 0.9rem;
    border-radius: 14px;
    background: #fdecef;
    color: #9b1c32;
    font-size: 0.86rem;
}

.merge-tool .inline-error.active {
    display: flex;
}

.merge-tool #toastWrap {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 200;
    display: grid;
    gap: 0.5rem;
}

.merge-tool .toast-msg {
    min-width: 240px;
    max-width: 360px;
    background: var(--purple-navy);
    color: #fff;
    border-radius: 14px;
    padding: 0.75rem 0.9rem;
    box-shadow: var(--shadow-hover);
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.merge-tool .toast-msg.error {
    background: #9b1c32;
}

.merge-tool .toast-msg.success {
    background: #2b1b62;
}

.merge-tool .progress-overlay,
.merge-tool .confirm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(43, 27, 98, 0.42);
    z-index: 300;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.merge-tool .progress-overlay.active,
.merge-tool .confirm-overlay.active {
    display: flex;
}

.merge-tool .progress-card,
.merge-tool .confirm-card {
    width: min(400px, 100%);
    background: #fff;
    border-radius: 22px;
    padding: 1.6rem 1.35rem;
    text-align: center;
    box-shadow: var(--shadow-hover);
}

.merge-tool .spin {
    width: 42px;
    height: 42px;
    margin: 0 auto 0.8rem;
    border-radius: 50%;
    border: 4px solid #ece4ff;
    border-top-color: var(--purple);
    animation: mergeSpin 0.8s linear infinite;
}

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

.merge-tool .progress-bar-track {
    height: 8px;
    background: var(--purple-soft);
    border-radius: 999px;
    overflow: hidden;
    margin-top: 1rem;
}

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

.merge-tool .progress-status,
.merge-tool .confirm-card p {
    color: var(--muted);
    font-size: 0.88rem;
    margin-top: 0.7rem;
}

.merge-tool .confirm-card i {
    font-size: 1.7rem;
    color: #9b1c32;
}

.merge-tool .confirm-card h4 {
    color: var(--purple-navy);
    margin: 0.4rem 0 0.3rem;
}

.merge-tool .confirm-actions {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.merge-tool .btn-danger {
    background: #9b1c32 !important;
    border-color: #9b1c32 !important;
    box-shadow: none !important;
}

.merge-tool .pv-modal {
    position: fixed;
    inset: 0;
    background: rgba(28, 11, 74, 0.94);
    z-index: 400;
    display: none;
    flex-direction: column;
}

.merge-tool .pv-modal.active {
    display: flex;
}

.merge-tool .pv-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.1rem;
    color: #fff;
}

.merge-tool .pv-title {
    font-weight: 600;
    font-size: 0.92rem;
}

.merge-tool .pv-canvas-wrap {
    flex: 1;
    display: grid;
    place-items: center;
    overflow: auto;
    padding: 1rem;
}

.merge-tool .pv-canvas-wrap canvas {
    max-width: 100%;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

.merge-tool .pv-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.7rem;
    padding: 1rem;
    color: #fff;
}

.merge-tool .pv-controls .btn-icon,
.merge-tool #pvClose {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.merge-tool .pv-controls .btn-icon:hover,
.merge-tool #pvClose:hover {
    background: var(--purple);
    color: #fff;
}

.merge-tool .pv-page-indicator {
    font-size: 0.85rem;
    min-width: 70px;
    text-align: center;
}

.merge-tool .mobile-bar {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    gap: 0.45rem;
    padding: 0.7rem 0.8rem calc(0.7rem + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--border);
    box-shadow: 0 -8px 24px rgba(43, 27, 98, 0.08);
}

.merge-tool .mobile-bar .btn {
    flex: 1;
    min-height: 44px;
}

.merge-tool :focus-visible {
    outline: 3px solid rgba(98, 54, 255, 0.35);
    outline-offset: 2px;
}

@media (max-width: 991px) {
    .merge-tool .ws-grid {
        grid-template-columns: 1fr;
    }

    .merge-tool .panel {
        position: static;
    }

    .merge-tool .mobile-bar.active {
        display: flex;
    }

    .merge-tool .workspace.active {
        padding-bottom: 5.5rem;
    }
}

@media (max-width: 640px) {
    .merge-tool .file-card {
        flex-wrap: wrap;
    }

    .merge-tool .file-card-actions {
        width: 100%;
        justify-content: flex-end;
    }
}