/* * {
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
} */

.drop_container {
    /* background-color: #f5f7fa; */
    /* min-height: 100vh; */
    position: relative;
    width: 100%;
    transition: background-color 0.3s;
}

.drop_container.drop-active {
    background-color: #e1f0ff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    /* margin-top: 20px; */

    background-color: white;
    padding: 30px;
    border-radius: 10px;
    /* box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1); */
    position: relative;
    z-index: 10;
    padding-bottom: 0px;
    /* border-top: 1px solid #e0e0e0; */
}

#pdfMergeContainer{
    box-shadow: 0px 0px 10px #d6d6d6;
}

section h4{
    font-weight: bold;
}
main{
    z-index: 0;
}
/* h1 {
    text-align: center;
    color: #333;
    font-weight: 600;
} */

.drop-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(74, 137, 220, 0.2);
    border: 4px dashed #4a89dc;
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1001;
    pointer-events: none;
}

.drop-overlay.active {
    display: flex;
    animation: pulseBorder 1.5s infinite;
}

@keyframes pulseBorder {
    0% { border-color: #4a89dc; }
    50% { border-color: #a8c6ff; }
    100% { border-color: #4a89dc; }
}

.drop-message {
    background-color: white;
    padding: 30px 50px;
    border-radius: 10px;
    font-size: 24px;
    color: #4a89dc;
    font-weight: bold;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.select-area {
    text-align: center;
    margin-bottom: 30px;
}

.btn {
    background-color: var(--primary_color);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
    box-shadow: 0 3px 10px rgba(74, 137, 220, 0.3);
}

.btn:hover {
    background-color: #f87195;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 137, 220, 0.4);
}

.btn:active {
    transform: translateY(0);
}

#fileInput {
    display: none;
}

.preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
    min-height: 250px;
    border: 5px dashed #e0e0e0;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #999;
    font-size: 18px;
    font-weight: 500;
    text-align: center;
    background-color: #f9f9f9;
    padding: 20px;
}


.pdf-card {
    width: 170px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s;
    background-color: white;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    position: relative;
    cursor: move;
}
.pdf-card:focus {
    cursor: grabbing !important;
}
.pdf-card:hover{
    cursor: move !important;
}

.pdf-card.sortable-ghost {
    opacity: 0.5;
    background-color: #f0f7ff;
    border: 2px dashed #4a89dc;
}

.pdf-card.sortable-chosen {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    z-index: 100;
}

.pdf-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.pdf-thumbnail {
    width: 100%;
    height: 200px;
    background-color: #f9f9f9;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.pdf-thumbnail img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s;
}

.pdf-card:hover .pdf-thumbnail img {
    transform: scale(1.05);
}

.pdf-name {
    padding: 12px;
    text-align: center;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background-color: white;
    border-top: 1px solid #f0f0f0;
}

.delete-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: #e74c3c;
    color: white;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.pdf-card:hover .delete-btn {
    opacity: 1;
}

.delete-btn:hover {
    background-color: #c0392b;
    transform: scale(1.1);
}

.merge-btn {
    display: block;
    margin: 40px auto 0;
    padding: 15px 40px;
    font-size: 18px;
    background-color: var(--primary_color);
    box-shadow: 0 4px 15px var(--secondary_color);
}

.merge-btn:hover {
    background-color: #f87195;
    box-shadow: 0 6px 20px var(--secondary_color);
}

.merge-btn:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
    box-shadow: none;
    transform: none !important;
}

.merge-form {
    /* display: none; */
}
#hiddenFilesInput{
    display: none;
}

/* PDF Viewer Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease-out;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease-out;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal.active .modal-content {
    transform: scale(1);
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    cursor: pointer;
    color: #a0a0a0;
    transition: color 0.2s;
    z-index: 10;
    background: rgb(0, 0, 0);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.close-btn:hover {
    color: #ffffff;
}

#pdfViewerContainer {
    width: 100%;
    height: 70vh;
    overflow: auto;
    position: relative;
    margin-top: 20px;
}

.pdf-page {
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
    text-align: center;
}

.pdf-page canvas {
    max-width: 100%;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
    display: block;
}

.page-number {
    margin-top: 10px;
    font-size: 14px;
    color: #666;
}

.zoom-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 5;
}

.zoom-btn {
    width: 40px;
    height: 40px;
    background-color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    font-size: 18px;
    color: #333;
    transition: all 0.2s;
}

.zoom-btn:hover {
    background-color: #4a89dc;
    color: white;
    transform: scale(1.1);
}

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: #4a89dc;
    animation: spin 1s ease-in-out infinite;
}

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

.status-message {
    text-align: center;
    padding: 15px;
    margin-top: 20px;
    border-radius: 5px;
    /* display: none; */
}

.success {
    background-color: #d4edda;
    color: #155724;
    display: block;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    display: block;
}

.download-btn {
    display: block;
    margin: 20px auto 0;
    padding: 12px 30px;
    background-color: #2ecc71;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s;
    box-shadow: 0 3px 10px rgba(46, 204, 113, 0.3);
    display: none;
}

.download-btn:hover {
    background-color: #27ae60;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 204, 113, 0.4);
}

#dragDropText{
    font-size: 28px;
    color: #aaaaaa;
}