@charset "utf-8";

@media (prefers-color-scheme: light) {
    :root {
        --top-image: url(/image/topimage-blue.png);
        --bg-image: url(/image/pattern-white.png);
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --top-image: url(/image/topimage-black.png);
        --bg-image: url(/image/pattern-gray.png);
    }
}

body {
    background-image: var(--bg-image);
    background-repeat: repeat;
    background-size: 40%;
}

header h1 {
    font-family: 'Allura', cursive;
    font-size: clamp(5rem, 8vw + 3rem, 12rem);
    text-align: center;
    padding: 144px 0;
    background-image: var(--top-image);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}


main {
    text-align: center;
}

article {
    width: min(90vw,720px);
    padding: 30px;
    margin: 50px auto;
    border-radius: 50px;
    background-color: var(--area-color);
    box-shadow: 0 0 15px var(--highlight-shadow);
}

section {
    margin: 20px;
}

section h2 {
    margin-top: 5px;
}

a, a:hover, a:active, a:visited {
    font-weight: normal;
    text-decoration-skip-ink: none;
    text-underline-offset: 3px;
}

/* ----フッター設定---- */

footer {
    padding: 3px 0;
}

footer svg {
    display: inline-block;
    height: 1.5rem;
    margin: 0 12px;
    fill: var(--primary-text-color);
}