/* style.css */

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1, h2, h3, h4, h5, h6 {
    color: #007bff; /* 主要な見出しの色 */
    margin-top: 1.5em;
    margin-bottom: 0.8em;
    line-height: 1.2;
}

h1 {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 1em;
}

h2 {
    font-size: 1.8em;
    border-bottom: 1px solid #eee;
    padding-bottom: 5px;
    margin-bottom: 1em;
}

p {
    margin-bottom: 1em;
}

ul, ol {
    list-style-type: disc;
    margin-left: 25px;
    margin-bottom: 1em;
}

ol {
    list-style-type: decimal;
}

li {
    margin-bottom: 0.5em;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

strong {
    font-weight: bold;
}

.footer-note {
    font-size: 0.85em;
    color: #777;
    text-align: center;
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

/* レスポンシブデザインの基本 */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 20px;
    }
    h1 {
        font-size: 2em;
    }
    h2 {
        font-size: 1.5em;
    }
}