footer {
    background-color: #333;
    overflow: hidden;
}

footer a {
    text-decoration: none;
    padding: 20px;
    text-align: center;
    float: left;
    color: white;
}

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@100;200;300;400&display=swap');

:root {
    --blue: #3c6382;
    --dark-blue: #0a3d62;
}

* {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    outline: none;
    border: none;
    text-transform: capitalize;
    transition: all .3s cubic-bezier(.38, 1.15, .7, 1.12);
}

*::selection {
    background: var(--dark-blue);
    color: #fff;
}

html {
    font-size: 62.5%;
    overflow-x: hidden;
}

section {
    min-height: 50vh;
    padding: 1rem 9%;
    padding-top: 8rem;
}

.heading {
    text-align: center;
    color: var(--blue);
    font-size: 3.5rem;
    text-transform: uppercase;
    font-weight: normal;
    padding: 1rem;
}

header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    padding: 2rem;
}

header .logo {
    font-size: 2.5rem;
    color: var(--dark-blue);
}

header .logo span {
    color: var(--blue);
}

header .navbar a {
    font-size: 1.7rem;
    margin-left: .7rem;
    padding: .5rem 2rem;
    border-radius: .5rem;
    color: var(--dark-blue);
}

header .navbar a.active,
header .navbar a:hover {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .1);
}

header.sticky {
    background: #fff;
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .1);
}

#menu {
    font-size: 3rem;
    color: var(--blue);
    cursor: pointer;
    display: none;
}

.home {
    background: url(../images/home-bg.gif) no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.home .content {
    text-align: center;
    padding-top: 45rem;
}

.home .content h1 {
    font-size: 5rem;
    color: var(--dark-blue);
}

.home .content h3 {
    font-size: 4rem;
    color: var(--blue);
    font-weight: normal;
}


.home .content .btn {
    display: inline-block;
    padding: .7rem 3rem;
    color: #fff;
    background: var(--blue);
    border-radius: .5rem;
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .1);
    margin-top: 1rem;
    font-size: 1.7rem;
}

.home .content .btn:hover {
    background: var(--dark-blue);
}

.prevent .box-container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.prevent .box-container .box {
    flex: 1 1 30rem;
    border-radius: .5rem;
    margin: 1rem;
    padding: 1rem;
    text-align: center;
}

.prevent .box-container .box img {
    /* height:12rem; */
    height: 37rem;
    padding: 1rem;
}

.prevent .box-container .box h3 {
    color: var(--blue);
    font-size: 2rem;
}

.prevent .box-container .box p {
    color: var(--dark-blue);
    font-size: 1.4rem;
    padding: 1rem;
}

.prevent .box-container .box:hover {
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .1);
}

.symptoms {
    background: url(../images/background-img.jpg) no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.symptoms .column {
    display: flex;
    align-items: center;
    justify-content: center;
}

.symptoms .column .main-image img {
    width: 43vh;
}

.symptoms .column .box-container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.symptoms .column .box-container .box {
    margin: 1rem;
    text-align: center;
}

.symptoms .column .box-container .box img {
    width: 20rem;
    padding: 1rem;
}

.symptoms .column .box-container .box h3 {
    font-size: 2rem;
    color: var(--blue);
}

.precautions .column {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.precautions .column .box-container {
    margin: 1.5rem;
    flex: 1 1 50rem;
    border: .1rem solid rgba(0, 0, 0, .1);
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .1);
    border-radius: .5rem;
}

.precautions .column .box-container .title {
    padding: 1.5rem .5rem;
    text-align: center;
    font-size: 2.5rem;
    background: var(--blue);
    color: #fff;
}

#chartimg {
    position: relative;
    width: 88vw;
    height: 70vh;
}

.precautions .column .box-container:last-child .title {
    background: #ff3300;
}

.precautions .column .box-container .box {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.precautions .column .box-container .box img {
    width: 15rem;
    padding: 1rem;
}

.precautions .column .box-container .box h3 {
    font-size: 2rem;
    color: var(--blue);
}

.precautions .column .box-container .box p {
    font-size: 1.2rem;
    color: var(--dark-blue);
    padding: 1rem 0;
}

.doctor {
    background: url(../images/background-img.jpg) no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.doctor .box-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.doctor .box-container .box {
    border-radius: .5rem;
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .1);
    padding: 1rem;
    margin: 1.5rem;
    text-align: center;
    background: #fff;
    border: .1rem solid rgba(0, 0, 0, .1);
    width: 33rem;
}

.doctor .box-container .box img {
    margin: 1rem;
    border-radius: 50%;
    height: 20rem;
    width: 20rem;
    object-fit: cover;
    background: var(--blue);
}

.doctor .box-container .box h3 {
    font-size: 2rem;
    color: var(--blue);
}

.doctor .box-container .box span {
    font-size: 1.5rem;
    color: var(--dark-blue);
}

.doctor .box-container .box .share {
    border-top: .1rem solid rgba(0, 0, 0, .1);
    padding: 1rem;
    margin-top: 1rem;
}

.doctor .box-container .box .share a {
    border-radius: 50%;
    height: 4.5rem;
    width: 4.5rem;
    line-height: 4.5rem;
    font-size: 2rem;
    margin: .4rem;
    background: #eee;
    color: var(--blue);
}

.doctor .box-container .box .share a:hover {
    background: var(--blue);
    color: #fff;
    transform: rotate(360deg);
}

.Food .column {
    display: flex;
    justify-content: center;
}

.Food .column .main-image img {
    width: 25vw;
}

.Food .column .box-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.Food .column .box-container .box {
    text-align: center;
    margin: 2rem;
}

.Food .column .box-container .box img {
    width: 25rem;
    height: 25rem;
    padding: 1rem;
}

.Food .column .box-container .box h3 {
    font-size: 2rem;
    color: var(--blue);
}

.footer {
    background: url(../images/background-img.jpg) no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.footer .box-container {
    display: flex;
    flex-wrap: wrap;
}

.footer .box-container .box {
    flex: 1 1 25rem;
    margin: 2rem;
}

.footer .box-container .box h3 {
    font-size: 2.5rem;
    color: var(--blue);
    padding: 1rem 0;
}

.footer .box-container .box p {
    font-size: 1.5rem;
    color: var(--dark-blue);
    padding: .5rem 0;
}

.footer .box-container .box a {
    font-size: 1.5rem;
    color: var(--dark-blue);
    padding: .5rem 0;
    display: block;
}

.footer a:hover {
    text-decoration: underline;
}

.footer .credit {
    font-size: 2rem;
    font-weight: normal;
    text-align: center;
    border-top: .1rem solid rgba(0, 0, 0, .1);
    padding: 2.5rem 1rem;
    color: var(--dark-blue);
}

.footer .credit a {
    color: var(--blue);
}

.scroll-top {
    position: fixed;
    bottom: 7.5rem;
    right: 1.5rem;
    z-index: 1000;
}

.scroll-top img {
    width: 8rem;
    animation: float 3s linear infinite;
}

@keyframes float {

    100%,
    0% {
        transform: translateY(0rem);
    }

    50% {
        transform: translateY(-3rem);
    }

}














/* media queries  */

@media (max-width:1200px) {

    html {
        font-size: 55%;
    }

}

@media (max-width:991px) {

    section {
        padding: 1rem 3%;
        padding-top: 8rem;
    }

    #menu {
        display: block;
    }

    header .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        padding: 2rem;
        border-top: .1rem solid rgba(0, 0, 0, .1);
        transform-origin: top;
        transform: scaleY(0);
        opacity: 0;
    }

    header .navbar.nav-toggle {
        transform: scaleY(1);
        opacity: 1;
    }

    header .navbar a {
        display: block;
        margin: 1.5rem 0;
        font-size: 2rem;
    }

    .fa-times {
        transform: rotate(180deg);
    }

    .symptoms .column .main-image img {
        display: none;
    }

    .Food .column .main-image img {
        display: none;
    }

}

@media (max-width:768px) {

    html {
        font-size: 50%;
    }

    .home .content h1 {
        font-size: 4rem;
    }

    .home .content h3 {
        font-size: 3.5rem;
    }

}

@media (max-width:450px) {

    .home .content h1 {
        font-size: 3.5rem;
    }

    .home .content h3 {
        font-size: 2.5rem;
    }

    .symptoms .column .box-container .box img {
        width: 14rem;
    }

    .precautions .column .box-container .box {
        flex-flow: column;
        text-align: center;
    }

    .doctor .box-container .box {
        width: 100%;
    }

}

footer {
    background-color: rgb(53, 10, 124);
    overflow: hidden;
}

footer a {
    text-decoration: none;
    padding: 20px;
    font-size: 2rem;
    text-align: center;
    float: left;
    color: white;
}

img:hover {
    transform: scale(1.1);
}