@charset "utf-8";


html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}

/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}

body {
	line-height: 1;
}


blockquote, q {
	quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}

table {
	border-collapse: collapse;
	border-spacing: 0;
}


header {
    width: 100%;
    background-color: #f8f9fa;
    padding: 20px 0;
}

.logo-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    width: 30%; /* 画像サイズを画面に対して30%に設定 */
    height: auto;
}

.logo-link {
    text-decoration: none;
    display: flex; /* 変更：リンクをフレックスコンテナに設定 */
    justify-content: center; /* 追加：リンク内の画像を中央寄せ */
}


footer {
    width: 100%;
    background-color: #333;
    padding: 20px 0;
    position: relative;
    clear: both;
}

.footer-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.copyright {
    color: #fff;
    font-size: 14px;
}

        .year-container {
            display: flex;
            flex-wrap: wrap;
        }
        .month-link-container {
            width: calc(100% / 6);
            box-sizing: border-box;
            padding: 5px;
        }