.btn-enviar {
    background-color: #f7b733;
    color: #000;
    font-weight: bold;
    border: none;
    padding: 10px 25px;
    border-radius: 6px;
    transition: 0.3s;
}

    .btn-enviar:hover {
        background-color: #f5a623;
    }

.drop-area {
    border: 2px dashed #ccc;
    border-radius: 6px;
    padding: 20px;
    text-align: center;
    color: #888;
}

.upload-container {
    background: white;
    border: 2px dashed #999;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    margin: auto;
    transition: border-color 0.3s;
    margin-top: 10px;
}

    .upload-container.dragover {
        border-color: #007bff;
        background: #eef5ff;
    }

#fileInput {
    display: none;
}

.upload-btn {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.file-list {
    margin-top: 20px;
    text-align: left;
}

.file-item {
    background: #f1f1f1;
    border-radius: 6px;
    padding: 10px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-info {
    font-size: 14px;
}

.remove-btn {
    background: #dc3545;
    border: none;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    padding: 5px 8px;
    font-size: 12px;
}


html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

#menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 55px;
    background-color: #1a73e8;
    color: white;
    display: flex;
    align-items: center;
    padding-left: 20px;
    font-size: 18px;
    z-index: 100;
}

.split {
    position: absolute;
    top: 105px;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    width: 100%;
    height: calc(100% - 155px);
    overflow: hidden;
}

#leftPanel {
    overflow-y: auto;
    border-right: 2px solid #ccc;
    background: #fff;
}

#rightPanel {
    overflow: hidden;
    background: #222;
    display: flex;
    justify-content: center;
    align-items: center;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    position: sticky;
    top: 0;
    background: #eaeaea;
    z-index: 2;
}

th, td {
    padding: 2px 6px;
    border-bottom: 1px solid #ddd;
    text-align: left;
    white-space: nowrap;
}

tr:hover {
    background: #f2f7ff;
    cursor: pointer;
}

tr.selected {
    background: #cce0ff;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.gutter {
    background-color: #ddd;
    cursor: col-resize;
    height: 100%;
    width: 6px;
}

#placeholder {
    color: #ccc;
    font-size: 20px;
    user-select: none;
}