.container {
    /*max-width: 1100px;*/
    /*padding: 0 20px;*/
    /*margin: 0 auto;*/
}

.panel {
    /*margin: 100px auto 40px;*/
    /*max-width: 500px;*/
    /*text-align: center;*/
}

/* Contenedor del botón */
.button_outer {
    background: #83ccd3;
    border-radius: 30px;
    text-align: center;
    height: 50px;
    width: 200px;
    display: inline-block;
    transition: .2s;
    position: relative;
    overflow: hidden;
}

/* Botón de subida */
.btn_upload {
    padding: 17px 30px 12px;
    color: #fff;
    text-align: center;
    position: relative;
    display: inline-block;
    overflow: hidden;
    z-index: 3;
    white-space: nowrap;
}

.btn_upload input {
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
    width: 100%;
    height: 105%;
    cursor: pointer;
    opacity: 0;
}

/* Estado de carga */
.file_uploading {
    width: 100%;
    height: 10px;
    margin-top: 20px;
    background: var(--bs-gray-300); /* Color de Bootstrap */
}

.file_uploading .btn_upload {
    display: none;
}

/* Barra de progreso */
.processing_bar {
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    border-radius: 30px;
    background: #83ccd3;
    transition: 3s;
}

.file_uploading .processing_bar {
    width: 100%;
}

/* Icono de éxito */
.success_box {
    display: none;
    width: 50px;
    height: 50px;
    position: relative;
}

.success_box:before {
    content: '';
    display: block;
    width: 9px;
    height: 18px;
    border-bottom: 6px solid #fff;
    border-right: 6px solid #fff;
    transform: rotate(45deg);
    position: absolute;
    left: 17px;
    top: 10px;
}

.file_uploaded .success_box {
    display: inline-block;
}

.file_uploaded {
    margin-top: 0;
    width: 50px;
    background: #83ccd3;
    height: 50px;
}

/* Vista previa del archivo */
.uploaded_file_view {
    max-width: 300px;
    margin: 40px auto;
    text-align: center;
    position: relative;
    transition: .2s;
    opacity: 0;
    border: 2px solid var(--bs-border-color); /* Borde de Bootstrap */
    padding: 15px;
}

/* Botón para eliminar */
.file_remove {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: block;
    position: absolute;
    background: var(--bs-gray-600); /* Color de Bootstrap */
    line-height: 30px;
    color: #fff;
    font-size: 12px;
    cursor: pointer;
    right: -15px;
    top: -15px;
}

.file_remove:hover {
    background: var(--bs-dark); /* Color de Bootstrap */
    transition: .2s;
}

.uploaded_file_view img {
    max-width: 100%;
}

.uploaded_file_view.show {
    opacity: 1;
}

/* Mensaje de error */
.error_msg {
    text-align: center;
    color: var(--bs-danger); /* Color de Bootstrap */
}