main.css

* {
    box-sizing: border-box;
}

body {
    background-color: hsl(90, 38%, 95%);
}

header {
    background-color: #d6b99c;
    color: #9c9cd6;
    padding: 10px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    font-weight: 900;
}

nav {
    width: 40%;
    margin: 10px auto;
}

nav ul {
    border: 2px solid #d6b99c;
    border-radius: 8px;
    display: flex;
    margin: 0;
    padding: 0;
    list-style-type: none;
}

nav ul li {
    background-color: #b9d69c;
    color: #9c9cd6;
    padding: 5px;
    text-align: center;
}

::placeholder {
    color: #9c9cd6;
}

.search {
    flex: 1;
}

.search_input {
    background: transparent;
    border: 0;
    border-bottom: 1px dashed #d69cb4;
    width: 100%;
}

.search_input:focus {
    outline: none;
}

main {
    background-color: hsl(90, 38%, 92%);
    border-radius: 4px;
    color: #7878c7;
    margin: 10px auto;
    padding: 10px;
    width: 60%;
}

footer {
    background-color: #d6b99c;
    color: #9c9cd6;
    padding: 5px;
    text-align: center;
}

#toi_btn {
    position: fixed;
    right: 0;
    top: 0;
}