:root {
    --second-color: #e0f1f2;
    --current: #4bb0b2;
    --current-50: #e0f1f2;
    --current-100: #b1dcde;
    --current-200: #7fc6c9;
    --current-400: #249fa1;
    --current-500: #008e8e;
    --current-600: #018180;
    --current-700: #037270;
    --current-800: #076260;
    --current-900: #094642;
}

body {
    padding: 0;
    margin: 0;
    /*font-family: 'Roboto', 'Times New Roman', Times, serif;*/
    font-family: 'Nunito', sans-serif ;
}

.header {
    width: 100%;
    height: 5rem;
    background-color: #ffff;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 20px #f1f1f1;
}

/*common*/
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.body--content {
    height: 100%;
    background: rgb(150, 208, 209);
    background: linear-gradient(
            0deg,
            rgba(150, 208, 209, 1) 0%,
            rgba(220, 255, 251, 1) 54%,
            rgba(255, 255, 255, 1) 100%
    );
    text-align: center;
    padding: 4rem 1rem 10rem 1rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: 300;
    color: var(--current-400);
}

.tictop-link__backgroundOverlay {
    background-image: url('https://www.tictop.vn/wp-content/uploads/2021/09/tai-xuong-1.svg');
    background-position: center left;
    background-repeat: no-repeat;
    background-size: 20% auto;
    opacity: 1;
    width: 100%;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    position: absolute;
}

.body--download {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-top: 4rem;
}

.download--button {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    cursor: pointer;
}

.download--button img {
    /*margin-right: 1rem;*/
}

.intro--product {
    padding: 1rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    width: 80%;
}

.intro--product--img {
    flex: 50%;
    text-align: center;
}

.intro--product--content {
    flex: 50%;
    align-items: center;
}

.intro--product--content p {
    margin-left: 1rem;
    font-size: 20px;
    font-weight: 500;
    color: var(--current-400);
    padding-right: 2rem;
}

.intro--product--content__ {
    margin-left: 2rem;
    width: 65px;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--current-700);
}

.intro--product--content__img {
    border-radius: 50%;
    background: rgb(2, 0, 36);
    background: linear-gradient(
            180deg,
            var(--current-800) 0%,
            var(--current-500) 35%,
            rgba(0, 212, 255, 1) 100%
    );
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}


.image-overview {
    width: 35%;
}

.intro--product--content ul {
    font-size: 16px;
    font-weight: 300;
    color: var(--current-800);
    padding-right: 2rem;
    line-height: 2rem;
}

.intro--product--content .text {
    font-size: 16px;
    font-weight: 300;
    color: #979696;
    padding: 0 2rem;
}

.bg-gray {
    background-color: #fafafa;
}

footer {
    padding: 2rem;
    border-top: 2px solid var(--current-800);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--current-800);
    font-size: 12px;
}

.restart {
    padding: 3rem;
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    align-items: center;
    margin: 2rem 0rem;
}

.restart--container {
    width: 80%;
    border-radius: 20px;
    flex-wrap: wrap;
    padding: 2rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--current-50);
}

.restart--button {
    background-color: var(--current-400);
    width: fit-content;
    height: fit-content;
    padding: 1rem 2rem;
    color: white;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
}

.restart--button a {
    text-decoration: none;
    color: white;
}

.restart--button:hover {
    background-color: white;
    box-shadow: 0 0 10px var(--current-700);
    color: var(--current-500);
}

.restart--button:hover a {
    color: var(--current-500);
}

.selector_language {
    border: none !important;
    background-color: var(--current-50);
    padding: 0.3rem;
    cursor: pointer;
    border-radius: 5px;
}

.selector_language option {
    padding: 1rem !important;
    background-color: white;
}

.intro-overview {
    position: relative;
    background-color: #f5fafb;
    background-image: url(https://www.tictop.vn/wp-content/uploads/2023/04/teamwork-3-scaled.webp);
    background-position: bottom right;
    background-repeat: no-repeat;
    background-size: 61% auto;
    transition: background 0.3s, border 0.3s, border-radius 0.3s, box-shadow 0.3s;
    /*margin-top: 6rem;*/
    margin-bottom: 0rem;
    padding: 0rem 0rem 0rem 0rem;
    height: 80vh;
}

.intro-overview-bg-overlay {
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    position: absolute;
    background-color: transparent;
    background-image: linear-gradient(247deg, #E0F1F200 0%, #FCFCFC 65%);
    opacity: 1;
    transition: background 0.3s, border-radius 0.3s, opacity 0.3s;
}

.intro-overview-container {
    max-width: 1400px;
    display: flex;
    /*margin-right: auto;*/
    /*margin-left: auto;*/
    position: relative;
    height: 100%;
    margin: 0 15rem;
}


.intro-overview-content {
    width: 50%;
    padding: 0rem 0rem 0rem 0rem;
    align-content: center;
    align-items: center;
    display: flex;
    position: relative;
    flex-wrap: wrap;
}

.intro-overview-subtitle {
    color: #1a6c7a;
    text-transform: uppercase;
    --widgets-spacing: 20px;
}

.intro-overview-title {
    font-size: 1.75rem;
    font-weight: 400;
    /*font-family: 'Inter', sans-serif;*/
    font-family: 'Nunito', sans-serif ;;
    padding-top: 4rem;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
}


.intro-overview-title__number {
    font-size: 54px;
    font-weight: 700;
    color: #008e8e;
}

.intro-overview-content-text {
    padding-bottom: 1rem;
    line-height: 1.65rem;
    color: #5D8787;
}

.intro-overview-content-db {
    font-size: 18px;
    line-height: 22px;
    margin-bottom: 1.5rem;
}

.intro-overview-content-db_number {
    font-size: 33px;
    font-weight: 700;
    color: #008d8d;
    margin-right: 1rem;
}

.main_sub_title_introduce {
    width: 100%;
    font-size: 1.5rem;
    text-align: center;
    margin-top: 1.25rem;
    color: #094642;
}

.main_title_introduce {
    font-weight: 500;
    width: 100vw;
    padding-top: 2rem;
}

.text-highlight {
    background-color: #f2cb05;
    padding: 0px 5px;
    margin: 0px 2px;
}

.text_download_now{
    display: flex;
    align-items: center;
    margin-bottom: 1.75rem;
}

.arrow-down {
    font-size: 20px;
    color: black;
    animation: moveDown 800ms infinite alternate;
}

@keyframes moveDown {
    0% {
        transform: translateY(-5px);
    }
    100% {
        transform: translateY(1px);
    }
}

@media only screen and (max-width: 640px) {

    .body--content {
        padding: 4rem 2rem 4rem 2rem;
    }

    .image-overview {
        width: 95%;
    }

    .intro-overview-bg-overlay {
        background-image: linear-gradient(260deg, #E0F1F200 0%, #FCFCFC 65%);
    }

    .intro--product--img {
        order: 1;
    }

    .restart--container {
        width: 90%;
        border-radius: 20px;
        padding: 2rem;

    }

    .intro-overview-content {
        align-content: center;
        align-items: center;
        display: flex;
        position: relative;
        flex-direction: column;
        width: 100%;
        padding: 3rem 1rem 3rem 1rem;

    }

    .intro-overview-container{
        margin: 0;
    }

    .intro-overview-subtitle {
        font-size: 13px;
    }

    .intro-overview-title {
        font-size: 20px;
        padding-top: 2rem;
        width: 100%;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .intro-overview-title-container{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .intro-overview-content-text {
        font-size: 13px;
    }

    .intro-overview-content-db {
        font-size: 13px;
    }

    .intro-overview-content-db_number {
        font-size: 18px;
        margin-right: 0.2rem;
    }

    .intro-overview {
        background-position: bottom left;
        background-size: 128% auto;
        height: 100%;
    }

    .main_sub_title_introduce {
        font-size: 15px;
    }

    .main_title_introduce {
        font-size: 23px;
    }

    .restart {
        padding: 2rem;
        margin: 1rem 0rem;
    }

}