html {
    font-size: calc(100vw / 1125);
}

@media (min-width: 750px) {
    html {
        font-size: calc(750px / 1125);
    }
}

body {
    margin: 0;
    font-size: 36rem;
    color: #ffffff;
    font-weight: normal;
    font-family: Art, sans-serif;
    user-select: none;
    background-color: #195a5d;
}

button {
    margin: 0;
    padding: 0;
    border: none;
    box-sizing: border-box;

    background: none;
    color: inherit;
    font: inherit;
    text-align: left;
    text-decoration: none;
    line-height: normal;

    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    outline: none;
    display: block;

    -webkit-tap-highlight-color: transparent;
    transition: .1s;
}

button:active {
    filter: brightness(60%);
}

.root {
    width: 1125rem;
    margin: 0 auto;
}

.header {
    position: fixed;
    width: 1125rem;
    height: 150rem;
    background-color: #05272a;
    display: flex;
    justify-content: space-between;
    z-index: 2;
}

.menu {
    position: fixed;
    width: 1125rem;
    height: 100vh;
    background-color: #004147;
    z-index: 1;
    text-align: center;
    overflow: hidden;
    transition: .3s;
}

.menu.fold {
    height: 0;
}

.menu-item {
    height: 106rem;
    font-size: 46rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: end;
}

.menu-button {
    margin-bottom: 8rem;
    font-weight: 700;

    background-image: linear-gradient(to right, #cfa267, #eac284);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    display: inline-block;
}

.menu-line {
    height: 3rem;
    width: 800rem;
    background: linear-gradient(to right,
            rgba(221, 179, 119, 0) 0%,
            rgba(221, 179, 119, .5) 20%,
            rgba(221, 179, 119, .5) 80%,
            rgba(221, 179, 119, 0) 100%);
}

.with-bg {
    background-size: cover;
}

#info {
    scroll-margin-top: 200rem;
}

.info-button {
    background-image: url('./img/info_btn1.webp');
    width: 246rem;
    height: 110rem;
    margin: 0 4rem;
    text-align: center;
    font-size: 38rem;
    color: #afffd2;
}

.info-button.gray {
    color: #dfdfdf;
    filter: grayscale(100%);
}

.info-item {
    background-image: url('./img/info_item.webp');
    width: 764rem;
    height: 140rem;
    margin: 0;
    text-align: center;
    font-size: 38rem;
    position: relative;;
}

.info-item .title {
    font-size: 32rem;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0 220rem 0 30rem;
    text-align: left;
}

.info-item .date {
    position: absolute;
    right: 88rem;
    bottom: 24rem;
    font-size: 26rem;
    color: #e5e5e5;
}

.support-button {
    width: 580rem;
    height: 128rem;
    border-radius: 40rem;
    font-size: 36rem;
    font-weight: 700;
    background-color: #095257;
    border: solid #00b892 8rem;
    text-align: center;
}