.split-pdf-container {
    max-width: 900px;
    margin: 20px auto 40px;
    padding: 20px;
    box-sizing: border-box;
    background-color: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.split-pdf-main-title {
    text-align: center;
    color: #333;
    margin-top: 0;
    margin-bottom: 9px;
    font-size: 24px;
}

.split-pdf-file-area {
    border: 2px dashed #ccc;
    border-radius: 8px;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
    max-width: 450px;
    background-color: #f8f9fa;
}

.split-pdf-file-area:hover,
.split-pdf-file-area.dragover {
    border-color: #4a90e2;
    background-color: #f0f7fd;
}

.split-pdf-file-input {
    display: none;
}

.split-pdf-file-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    /* Center content vertically */
    cursor: pointer;
    padding: 15px;
    /* Apply padding here */
    box-sizing: border-box;
    /* Include padding in height/width calculation */
}

.split-pdf-select-btn {
    background: #0070C6;
    color: white;
    border: none;
    border-radius: 8px;
    padding: 9px 13px;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.2s, transform 0.1s ease;
    margin: 0;
    pointer-events: none;
    /* Pass clicks through to the underlying label */
}

.split-pdf-file-label:hover .split-pdf-select-btn,
.split-pdf-file-label:active .split-pdf-select-btn,
.split-pdf-file-label:focus .split-pdf-select-btn {
    background: #0070C6;
}

.split-pdf-file-label:active .split-pdf-select-btn {
    transform: scale(0.98);
}


.split-pdf-drop-text {
    font-size: 17px;
    text-align: center;
    color: #34495e;
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 0;
}

.split-pdf-drop-text p {
    text-align: center;
}

.split-pdf-file-info {
    margin: 15px;
    font-size: 16px;
    color: #666;
    text-align: center;
}

.split-pdf-options {
    margin-top: 15px;
}

.split-pdf-mode-selector {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.split-pdf-mode-label {
    /* display: block; (Removed) */
    /* margin-bottom: 8px; (Removed) */
    flex-shrink: 0;
    /* Prevent label from shrinking */
    font-weight: 500;
    color: #333;
    font-size: 17px;
}

.split-pdf-container .split-pdf-mode-select {
    flex-grow: 1;
    /* Take up remaining space */
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    background-color: #fff;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 20 20' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 8L10 12L14 8' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 6px center;
    background-size: 20px 20px;
    padding-right: 40px;
    /* Make space for icon */
    cursor: pointer;
}

.split-pdf-container .split-pdf-mode-select:focus,
.split-pdf-container .split-pdf-mode-select:active,
.split-pdf-container .split-pdf-mode-select:hover {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 1px rgba(74, 144, 226, 0.2);
    background-color: #fff;
}

.split-pdf-mode-tabs {
    display: none;
    /* Hidden by default, shown on desktop via media query */
    flex-wrap: wrap;
    gap: 5px;
    /* margin-bottom: 20px; (Removed) */
}

.split-pdf-container .split-pdf-mode-tab {
    padding: 7px 13px;
    border: 1px solid #ddd;
    background-color: #f9f9f9;
    cursor: pointer;
    border-radius: 4px;
    font-size: 16px;
    color: #333;
    transition: all 0.2s ease;
}

.split-pdf-container .split-pdf-mode-tab:hover,
.split-pdf-container .split-pdf-mode-tab:active,
.split-pdf-container .split-pdf-mode-tab:focus {
    background-color: #f9f9f9;
    border-color: #ccc;
}

.split-pdf-container .split-pdf-mode-tab:focus {
    outline: none;
}

.split-pdf-container .split-pdf-mode-tab.active {
    background-color: #0070C6;
    color: white;
    border-color: #0070C6;
    font-weight: 500;
}

.split-pdf-container .split-pdf-mode-tab.active:hover,
.split-pdf-container .split-pdf-mode-tab.active:active,
.split-pdf-container .split-pdf-mode-tab.active:focus {
    background-color: #0070C6;
}

.split-pdf-container .split-pdf-mode-tab:active {
    transform: scale(0.98);
}

.split-pdf-container .split-pdf-mode-tab.active-flash {
    animation: active-glow 1.5s ease-out;
}

@keyframes active-glow {
    from {
        box-shadow: 0 0 12px rgba(37, 99, 235, 0.6);
    }

    to {
        box-shadow: none;
    }
}

.split-pdf-thumbnail.copied-flash {
    animation: copied-glow 1.5s ease-out;
}

@keyframes copied-glow {
    from {
        box-shadow: 0 0 12px rgba(22, 163, 74, 0.7);
        /* Green glow */
    }

    to {
        box-shadow: none;
        /* Revert to default (no shadow on the container) */
    }
}

.split-pdf-mode-options {
    padding: 10px;
    border: 1px solid #eee;
    border-radius: 4px;
    margin-bottom: 10px;
    background-color: #f9f9f9;
}

.split-pdf-mode-options p {
    margin-top: 0;
    margin-bottom: 5px;
}

.split-pdf-preview-container {
    margin-top: 0;
    /* overflow-y: auto; (Enable vertical scrolling within the container)
  max-height: 500px; (Set a max height to enable scrolling) */
    border-radius: 4px;
    padding: 5px;
    background-color: #fdfdfd;
}

.split-pdf-preview-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding: 0 10px;
}

.split-pdf-thumbnail-loading-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid #f0f0f0;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: split-pdf-spin 1s linear infinite;
    margin-right: 15px;
}

.split-pdf-progress-container {
    flex-grow: 1;
    height: 20px;
    background-color: #ecf0f1;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.split-pdf-progress-bar-inner {
    height: 100%;
    width: 0%;
    background-color: #3498db;
    transition: width 0.1s linear;
    border-radius: 10px;
}

.split-pdf-progress-percentage-text {
    color: #2c3e50;
    font-size: 16px;
    font-weight: 500;
    margin-left: 10px;
    min-width: 40px;
    text-align: left;
}

.split-pdf-loading-text {
    color: #2c3e50;
    font-size: 16px;
    font-weight: 500;
    margin-left: 15px;
}

.split-pdf-animated-loading-text {
    text-align: center;
    margin-top: 10px;
    font-size: 16px;
    color: #555;
    height: 20px;
    /* Reserve space to prevent layout shift */
}

.split-pdf-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.split-pdf-preview-title {
    margin: 0;
    color: #333;
}

.split-pdf-preview-thumbnails {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    /* Align thumbnails to the center */
    column-gap: 0;
    /* Remove horizontal gap to let colored backgrounds touch */
    overflow: visible;
    /* Allow scissors to overflow */
    position: relative;
    row-gap: 15px;
    /* Keep vertical gap between rows */
    min-height: 200px;
}

.split-pdf-thumbnail {
    position: relative;
    cursor: default;
    /* Use default cursor instead of move icon */
    width: 140px;
    height: 168px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    /* Add space for the background color */
    border-radius: 4px;
}

.split-pdf-thumbnail-img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
}

.split-pdf-thumbnail-image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    /* This is the fix */
}

.split-pdf-thumbnail.selected .split-pdf-thumbnail-image-wrapper {
    border: 2px solid #63b1ed;
    box-shadow: 0 0 8px rgba(141, 133, 235, 0.8);
}

.split-pdf-thumbnail:hover .split-pdf-thumbnail-overlay {
    opacity: 1;
}

.split-pdf-thumbnail-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: auto;
    /* Adjust height to content */
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 3;
    display: flex;
    justify-content: center;
    gap: 5px;
    padding-top: 5px;
}

.split-pdf-container .split-pdf-thumbnail-btn {
    color: white;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.5s ease-out;
    background-color: rgba(44, 62, 80, 0.7);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Reset button styles */
    border: none;
    padding: 0;
}

.split-pdf-thumbnail-btn svg {
    width: 16px;
    /* Slightly smaller to fit circle */
    height: 16px;
}

.split-pdf-container .split-pdf-thumbnail-btn:active,
.split-pdf-container .split-pdf-thumbnail-btn:focus,
.split-pdf-container .split-pdf-thumbnail-btn:hover {
    color: white;
    background-color: rgba(44, 62, 80, 0.7);
    outline: none;
}

.split-pdf-container .split-pdf-thumbnail-btn:active {
    transform: scale(0.9);
}

.split-pdf-container .split-pdf-page-order-input {
    position: absolute;
    bottom: 5px;
    left: 5px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0;
    border: none;
    border-radius: 3px;
    font-size: 14px;
    width: 35px;
    text-align: center;
    -webkit-appearance: textfield;
    -moz-appearance: textfield;
    appearance: textfield;
}

.split-pdf-page-order-input::-webkit-outer-spin-button,
.split-pdf-page-order-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.split-pdf-page-order-input:focus {
    background-color: white;
    color: black;
    border: 1px solid #0070C6;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 112, 198, 0.2);
}

.split-pdf-actions {
    position: sticky;
    display: flex;
    top: 0;
    z-index: 11;
    /* Ensure it stays on top of thumbnails and scissors */
    background-color: #fff;
    /* Ensure the background is solid */
    justify-content: center;
    gap: 10px;
    padding: 5px 0;
    /* Add vertical padding for when sticky */
    margin-bottom: 5px;
    /* Adjust margin to keep spacing consistent */
}

.split-pdf-container .split-pdf-action-btn {
    padding: 5px 13px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
    background-color: #f0f0f0;
    color: #333;
}

.split-pdf-container .split-pdf-action-btn:hover,
.split-pdf-container .split-pdf-action-btn:active,
.split-pdf-container .split-pdf-action-btn:focus {
    background-color: #f0f0f0;
    border-color: #ccc;
}

.split-pdf-container .split-pdf-action-btn:focus {
    outline: none;
}

.split-pdf-container .split-pdf-action-btn:active {
    transform: scale(0.98);
}

.split-pdf-container .split-pdf-primary-btn {
    background: #0070C6;
    color: white;
    border-color: #0070C6;
}

.split-pdf-container .split-pdf-primary-btn:hover,
.split-pdf-container .split-pdf-primary-btn:active,
.split-pdf-container .split-pdf-primary-btn:focus {
    background: #0070C6;
    border-color: #1d4ed8;
}

.split-pdf-container .split-pdf-primary-btn:focus {
    outline: none;
}

.split-pdf-container .split-pdf-primary-btn:active {
    transform: scale(0.98);
}

.split-pdf-results {
    margin-top: 30px;
    scroll-margin-top: 20px;
}

.split-pdf-results-title {
    margin-bottom: 10px;
    font-size: 20px;
    color: #333;
}

.split-pdf-results-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.split-pdf-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: #f5f5f5;
    border-radius: 4px;
}

.split-pdf-result-name {
    font-weight: 500;
    font-size: 16px;
}

.split-pdf-container .split-pdf-result-download {
    background: #0070C6;
    color: white;
    border: none;
    font-size: 16px;
    border-radius: 4px;
    padding: 5px 15px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.split-pdf-container .split-pdf-result-download:hover,
.split-pdf-container .split-pdf-result-download:active,
.split-pdf-container .split-pdf-result-download:focus {
    background: #0070C6;
}

.split-pdf-container .split-pdf-result-download:focus {
    outline: none;
}

.split-pdf-container .split-pdf-result-download:active {
    transform: scale(0.98);
}

/* Download All Button Styles */
.split-pdf-download-all-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: #eaf2f8;
    border-radius: 4px;
}

.split-pdf-download-all-name {
    font-weight: 500;
    font-size: 16px;
    color: #3a7bc8;
}

.split-pdf-container .split-pdf-download-all-btn {
    background: #d62c1a;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 5px 18px;
    cursor: pointer;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.2s ease;
}

.split-pdf-container .split-pdf-download-all-btn:hover,
.split-pdf-container .split-pdf-download-all-btn:active,
.split-pdf-container .split-pdf-download-all-btn:focus {
    background: #d62c1a;
}

.split-pdf-container .split-pdf-download-all-btn:focus {
    outline: none;
}

.split-pdf-container .split-pdf-download-all-btn:active {
    transform: scale(0.98);
}

.split-pdf-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: split-pdf-spin 1s ease-in-out infinite;
    margin-right: 8px;
    vertical-align: middle;
    position: relative;
    top: -1px;
}

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

/* Fullscreen Modal Close Button */
.split-pdf-fullscreen-close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    background: rgba(44, 62, 80, 0.7);
    color: white;
    border: none;
    border-radius: 50%;
    padding: 9px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    transition: background-color 0.2s, transform 0.2s;
}

.split-pdf-fullscreen-close-btn:hover {
    background: rgba(231, 76, 60, 0.9);
    transform: scale(1.1);
}

.split-pdf-fullscreen-close-btn svg {
    width: 22px;
    height: 22px;
}

/* Custom split mode styles */
.split-pdf-custom-split {
    position: relative;
    height: 2px;
    background: #4a90e2;
    margin: 20px 0;
    cursor: pointer;
}

.split-pdf-custom-split-handle {
    position: absolute;
    top: -8px;
    width: 16px;
    height: 16px;
    background: #4a90e2;
    border-radius: 50%;
    transform: translateX(-50%);
    cursor: ew-resize;
}

/* Page extraction mode styles */
.split-pdf-page-selection {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.split-pdf-page-checkbox {
    display: none;
}

.split-pdf-page-label {
    display: inline-block;
    padding: 2px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
}

.split-pdf-page-checkbox:checked+.split-pdf-page-label {
    background: #0070C6;
    color: white;
    border-color: #4a90e2;
}

.split-pdf-container .split-pdf-text-input {
    width: 100%;
    padding: 8px 12px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
    box-sizing: border-box;
    /* To include padding in width */
    margin-top: 5px;
}

.split-pdf-container .split-pdf-text-input:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 1px rgba(74, 144, 226, 0.2);
    background-color: #fff;
}

.split-pdf-container .split-pdf-text-input.invalid {
    border-color: #e74c3c;
}

.split-pdf-error-message {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 5px;
}

/* Multi-file split mode styles */
.split-pdf-container .split-pdf-multi-input {
    width: 80px;
    padding: 5px 8px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
}

.split-pdf-container .split-pdf-multi-input:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 1px rgba(74, 144, 226, 0.2);
    background-color: #fff;
}

/* Page ranges mode styles */
.split-pdf-range-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.split-pdf-range-item {
    display: flex;
    gap: 10px;
    align-items: center;
}

.split-pdf-container .split-pdf-range-input {
    width: 60px;
    padding: 5px 8px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background-color: #fff;
}

.split-pdf-container .split-pdf-range-input:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 1px rgba(74, 144, 226, 0.2);
    background-color: white;
}

.split-pdf-add-range {
    margin-top: 0;
    background: #f0f0f0;
    color: #333;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 5px 10px;
    cursor: pointer;
    align-self: flex-start;
    /* Align left on desktop */
    width: fit-content;
    /* Ensure it's not full width */
}

.split-pdf-add-range:focus,
.split-pdf-add-range:hover,
.split-pdf-add-range:active {
    background: #f0f0f0;
    outline: none;
    color: #333;
}

.split-pdf-add-range:active {
    transform: scale(0.98);
}


.split-pdf-container .split-pdf-remove-range {
    background: transparent;
    border: none;
    color: #e74c3c;
    cursor: pointer;
    font-size: 25px;
    padding: 0;
    line-height: 1;
    transition: color 0.2s;
    display: flex;
    align-items: center;
}

.split-pdf-container .split-pdf-remove-range:hover,
.split-pdf-container .split-pdf-remove-range:active,
.split-pdf-container .split-pdf-remove-range:focus {
    color: #c0392b;
}

.split-pdf-container .split-pdf-remove-range:active {
    transform: scale(0.95);
}

.split-pdf-container .split-pdf-remove-range:focus {
    outline: none;
    border-radius: 50%;
}

/* Drag and drop styles */
.split-pdf-thumbnail.dragging {
    opacity: 0.5;
}

.split-pdf-thumbnail-placeholder {
    border: 2px dashed #4a90e2;
    background: rgba(74, 144, 226, 0.1);
}

.split-pdf-scissors {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
}

.split-pdf-scissors.desktop {
    width: 30px;
    flex-direction: column;
}

.split-pdf-scissors.mobile {
    width: 100%;
    height: 30px;
    flex-direction: row;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /* Ensure padding is included in width calculation */
}

.split-pdf-scissors-line {
    position: absolute;
}

.split-pdf-scissors.desktop .split-pdf-scissors-line {
    background: repeating-linear-gradient(to bottom,
            #ccc,
            #ccc 5px,
            transparent 5px,
            transparent 10px);
    width: 2px;
    height: 90%;
}

.split-pdf-scissors.mobile .split-pdf-scissors-line {
    background: repeating-linear-gradient(to right,
            #ccc,
            #ccc 5px,
            transparent 5px,
            transparent 10px);
    height: 2px;
    width: 100%;
}

.split-pdf-scissors-icon {
    background: white;
    border: 2px solid #ccc;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    color: #ccc;
    transition: all 0.2s ease;
}

.split-pdf-scissors.desktop .split-pdf-scissors-icon {
    margin: 10px 0;
    transform: rotate(0deg);
    /* Point icon up */
}

.split-pdf-scissors.mobile .split-pdf-scissors-icon {
    margin: 0 10px;
    transform: rotate(90deg);
    /* Point icon up */
}

.split-pdf-container .split-pdf-scissors:hover .split-pdf-scissors-icon {
    border-color: #999;
    color: #999;
}

.split-pdf-container .split-pdf-scissors.active:hover .split-pdf-scissors-icon {
    border-color: #b93d30;
    /* A darker red on hover when active */
    color: #b93d30;
}

.split-pdf-container .split-pdf-scissors:active .split-pdf-scissors-icon {
    transform: scale(0.95);
}


.split-pdf-thumbnail.group-start {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.split-pdf-thumbnail.group-middle {
    border-radius: 0;
}

.split-pdf-thumbnail.group-end {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.split-pdf-scissors.active .split-pdf-scissors-line {
    background: #e74c3c;
}

.split-pdf-scissors.active .split-pdf-scissors-icon {
    border-color: #e74c3c;
    color: #e74c3c;
}

.split-pdf-summary-box {
    margin-top: 5px;
    padding: 0 10px 10px 10px;
    border-radius: 4px;
    font-size: 16px;
    color: #333;
    text-align: center;
}

/* Hide number input spinners */
.split-pdf-container input[type="number"]::-webkit-inner-spin-button,
.split-pdf-container input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.split-pdf-container input[type="number"] {
    -moz-appearance: textfield;
    /* Firefox */
    appearance: textfield;
}

.faq-list {
    margin-top: 1rem;
}

.faq-list dt {
    font-weight: 500;
    font-size: 1.1em;
}

.faq-list dd {
    margin-left: 0;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
    padding-left: 1rem;
    padding-bottom: 10px;
    border-bottom: 1px dashed #ddd;
}

/* Comparison Table Styles */
.split-pdf-comparison-table {
    border-collapse: collapse;
    margin: 20px 0;
    width: 50%;
}

.split-pdf-comparison-table th,
.split-pdf-comparison-table td {
    border: 1px solid #e0e0e0;
    /* Light border */
    padding: 10px 12px;
    text-align: center;
}

.split-pdf-comparison-table th {
    background-color: #f8f8f8;
}

/* Desktop view for mode selector */
@media (min-width: 769px) {
    .split-pdf-mode-tabs {
        display: flex;
    }

    .split-pdf-mode-select {
        display: none;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .split-pdf-container {
        padding: 15px 0;
        border-left: none;
        border-right: none;
        border-radius: 0;
        box-shadow: none;
    }

    .split-pdf-file-area {
        padding: 15px;
    }

    .split-pdf-preview-thumbnails {
        flex-direction: column;
        gap: 0;
        padding-left: 0;
        padding-right: 0;
    }

    .split-pdf-thumbnail {
        width: 100%;
        margin-bottom: 0;
        display: flex;
        align-items: center;
        gap: 15px;
        height: auto;
        padding: 10px 0;
        border: none;
        box-shadow: none;
    }

    .split-pdf-thumbnail-image-wrapper {
        width: 80px;
        height: 112px;
        flex-shrink: 0;
        border: 1px solid #ccc;
        border-radius: 2px;
        margin-left: 5px;
    }

    .split-pdf-thumbnail-overlay {
        opacity: 1;
        /* Always show on mobile */
        position: static;
        transform: none;
        /* Remove centering */
        background: none;
        display: flex;
        align-items: center;
        /* Vertically center the icons */
        justify-content: space-around;
        /* Distribute icons evenly */
        flex-grow: 1;
        /* Take up remaining space */
        background-color: #f0f0f0;
        /* Single background for the bar */
        border-radius: 8px;
        /* Rounded corners for the bar */
        padding: 4px;
    }

    .split-pdf-container .split-pdf-thumbnail-btn {
        color: #333;
        background: transparent;
        /* Remove individual circle background */
        border-radius: 4px;
        /* Slight radius for hover effect */
        width: auto;
        height: auto;
        padding: 8px;
        /* Increase clickable area */
        font-size: 17px;
        /* Slightly larger for better touch targets */
    }

    .split-pdf-container .split-pdf-thumbnail-btn svg {
        width: 22px;
        height: 22px;
    }

    .split-pdf-container .split-pdf-copy-btn svg {
        width: 20px;
        height: 20px;
    }

    .split-pdf-container .split-pdf-thumbnail-btn:hover,
    .split-pdf-container .split-pdf-thumbnail-btn:active,
    .split-pdf-container .split-pdf-thumbnail-btn:focus {
        color: #000;
        background: #f0f0f0;
        outline: none;
    }

    .split-pdf-container .split-pdf-thumbnail-btn:active {
        transform: scale(0.9);
    }

    .split-pdf-container .split-pdf-remove-range {
        padding-left: 0;
        padding-right: 0;
    }

    .split-pdf-add-range {
        align-self: center;
        /* Center on mobile */
    }

    .split-pdf-preview-container {
        padding: 0;
    }

    .split-pdf-comparison-table {
        width: 100%;
    }

    .split-pdf-mode-options {
        padding: 15px 6px;
    }

}