@charset "UTF-8";

html {
    font-size: 100%;
    font-family: "Yu Gothic", "游ゴシック", YuGothic, "メイリオ", sans-serif;
    background-color: #f9f9f9;
    color: #222;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background-color: #f5f5f5;
    padding: 1rem;
    border-bottom: 1px solid #ccc;
}

h1 {
    margin: 0;
    font-size: 1.8rem;
}

.main-nav {
    list-style: none;
    display: flex;
    gap: 1rem;
    padding: 0;
}

.main-nav a {
    background: #fff;
    color: #000;
    border: 1px solid #000;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    text-decoration: none;
    transition: 0.3s;
}

.main-nav a:hover {
    background: #000;
    color: #fff;
}

main {
    flex: 1;
    padding: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

h2 {
    margin-top: 2rem;
    font-size: 1.5rem;
    border-left: 4px solid #0050aa;
    padding-left: 0.5rem;
}

a {
    background-color: white;
    color: black;
    padding: 0.25em 0.5em;
    text-decoration: none;
}

/* アコーディオン */
.accordionBtn {
    display: inline-block;
    margin: 1rem 0;
    font-size: 1rem;
    background: transparent;
    border: none;
    cursor: pointer;
    color: #0050aa;
}

.include-accordion ul {
    padding: 0;
    margin: 0;
    list-style: none;
    overflow: hidden;
    height: 0;
    transition: height 0.3s ease;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    margin-top: 1rem;
}

td,
th {
    padding: 0.5rem;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

/* 定義リストスタイル */
dl {
    margin: 0 0 1rem 0;
}

dt {
    font-weight: bold;
    display: inline-block;
    width: auto;
}

dt::after {
    content: "：";
    margin-right: 0.1rem;
}

dd {
    display: inline-block;
    margin: 0 1rem 0.5rem 0;
    text-align: center;
}

footer {
    text-align: right;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    background-color: #000;
    color: #fff;
    position: relative;
}