* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: rgb(255, 228, 205);
    font-family: 'Roboto Flex', sans-serif;
}

header {
    background-color: rgb(61, 61, 61);
    color: white;
    display: flex;
    justify-content: space-between;
    padding: 2rem;
    align-items: center;
    position: sticky;
    top: 0;
    height: 3rem;
    width: 100%;
}
.bg{
    background: #687ef0;
    color: #333;
    padding: 2rem;
    height: 3rem;
}

.mobile {
    display: none;
    border: none;
    box-shadow: none;
    color: rgb(227, 18, 18);
}

nav ul li a {
    color: inherit;
    padding: 1rem;
    text-decoration: none;
}

a {
    padding: 0.5rem;
    color: tomato;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

nav ul li {
    display: inline-block;
    justify-content: space-between;
}

img {
    width: 100%;
    height: 100%;

}

.a {
    grid-area: a;
}

.b {
    grid-area: b;
}

.c {
    grid-area: c;
}

.d {
    grid-area: d;
}

.e {
    grid-area: e;
}

.f {
    grid-area: f;
}

.g {
    grid-area: g;
}

.h {
    grid-area: h;
}

.i {
    grid-area: i;
}

.j {
    grid-area: j;
}

.k {
    grid-area: k;
}

.collection {
    display: grid;
    gap: 1rem 1rem;
    margin: 1rem;
    justify-content: center;
    align-items: center;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 0.3fr 0.3fr 0.3fr 0.3fr;
    grid-template-areas: "d e g f"
        "h h k k"
        "c b b j"
        "a b b i";
}

button {
    border: none;
    box-shadow: none;
    border-radius: 5px;
    background-color: rgb(206, 129, 129);
    font-family: 'Roboto Flex', sans-serif;
    padding: 0.5rem 1.5rem;

}

#backToTop {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: none;
}

.container3 {
    height: 18rem;
    background-color: rgb(92, 60, 60);
    padding: 1rem;
    color: white;
}

form {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: center;
    text-align: center;
    justify-content: center;

}

label {
    display: inline-block;
    justify-content: center;
    padding: 10px;
}

input {
    display: inline-block;
    padding: 2px;
    width: 20rem;
    border-radius: 5px;
    margin-left: 5rem;
}

textarea {
    border-radius: 5px;
    margin-left: 3.5rem;
}

.message {
    display: flex;
    align-items: center;
    margin: 1rem;
}

.send {
    background-color: tomato;
    color: white;
    padding: 5px;
    border-radius: 5px;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

@media (max-width: 800px) {
    nav ul {
        display: none;
    }

    .mobile {
        display: block;
    }

    ul.responsive {
        display: block;
        background-color: white;
        color: #333;
        position: absolute;
        left: 0;
        top: 5rem;
        width: 100%;

    }

    ul.responsive li {
        display: block;
        margin: 1rem;
    }

    header .bg .mobile {
        color: #333;
    }
}

@media (max-width: 576px) {

    body {
        width: 100vw;
    }

    h1{
        font-size: large;
    }

    .container3{
        display: flex;
        width: 100vw;
        flex-wrap: wrap;
        justify-content: center;
    }

    form {
        display: inline-block;
        align-items: center;
        text-align: center;
        width: auto;
        justify-content: center;


}

label {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 5px;

}

input {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
    width: 100% ;
    border-radius: 5px;
    margin-left: 1rem;
}

textarea {
    display: flex;
    border-radius: 5px;
    margin-left: 1px;
    width: 100%;

}

.message {
    display: flex;
    margin: 1px;
    align-items: center;
}
 #backToTop {
    float: left;
 }

}