.iframe-container {
    position: relative;
    width: 100%;
    height: calc(100vh - 100px);
}

.iframe-wrapper {
    display: none;
    width: 100%;
    height: 100%;
    position: relative;
}

    .iframe-wrapper.active {
        display: block;
    }

    .iframe-wrapper iframe {
        width: 100%;
        height: 100%;
        border: none;
    }

/* Loading spinner */
.loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #666;
    font-size: 14px;
    z-index: 10;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    animation: spin 1s linear infinite;
    margin-bottom: 8px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}
/*Chi tiết tiến độ spiner*/
.local-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: #555;
    font-size: 14px;
}

    .local-loader .spinner {
        border: 4px solid #f3f3f3;
        border-top: 4px solid #3498db;
        border-radius: 50%;
        width: 30px;
        height: 30px;
        animation: spin 1s linear infinite;
        margin-bottom: 6px;
    }

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/*Tìm kiếm spinner*/
#formLoader {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.7);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    color: #333;
    font-size: 15px;
}

    #formLoader .spinner {
        border: 4px solid #f3f3f3;
        border-top: 4px solid #3498db;
        border-radius: 50%;
        width: 40px;
        height: 40px;
        animation: spin 1s linear infinite;
        margin-bottom: 8px;
    }

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}