@charset "UTF-8";

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-size: 100%;
    letter-spacing: 1.2px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.html {
    height: 100%;
    width: 100%;
    font-family: 'Noto Sans JP', sans-serif;
}

.body {
    height: 100%;
    width: 100%;
    background-color: #E3F3FC;
    padding: 3rem 5rem;
    display: grid;
    place-items: center;
    /* display: flex;
    align-items: center;
    justify-content: center;
    position: relative; */
}

.header {
    position: absolute;
    top: 3rem;
    left: 5rem;
    width: calc(100% - 10rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 3rem;
}

.h1 { 
    font-size: 1.5rem;
}

a {
    text-decoration: none;
}

.main-nav {
    display: flex;
    /* font-size: ; */
    list-style: none;
}

.main-nav li {
    margin-left: 2em;
}

.main-nav a {
    color: #3363CC;
}

.heading {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 1em;
    color: #3363CC;
    /* -webkit-text-stroke: 1px #FFF; */
}

.br {
    display: none;
}

.buttons-wrapper {
    display: flex;
    gap: 1.5em 1em;
    flex-wrap: wrap;
}

.button {
    font-size: 1rem;
    background-color: #3363CC;
    color: white;
    border-radius: 2px;
    padding: 0.5em 1.5em;
    text-decoration: none;
}

@media (max-width: 670px) {
    .body {
        padding: 1.5rem;
    }

    .header {
        top: 1.5rem;
        left: 1.5rem;
        width: calc(100% - 3rem);
    }

    .h1 {
        font-size: 1.25rem;
    }

    .main-nav li {
        margin-left: 1.5em;
    }

    .heading {
        font-size: 3rem;
    }

    .br {
        display: inline;
    }
}