@charset "UTF-8";

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
    background: #0f1117;
    color: #f5f5f5;
    line-height: 1.8;
}

.site-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo {
    height: 40px;
    width: auto;
    display: block;
}

.blog-container {
    max-width: 880px;
    margin: 0 auto;
    padding: 48px 20px;
}

.blog-list-container {
    max-width: 1200px;
}

.blog-article {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 40px;
}

.blog-date {
    color: #aaa;
    font-size: 14px;
}

.blog-content h1 {
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.25;
    margin-bottom: 32px;
}

.blog-content h2 {
    margin-top: 48px;
    font-size: 28px;
    border-left: 4px solid #fff;
    padding-left: 14px;
}

.blog-content p {
    margin: 20px 0;
}

.blog-content strong {
    color: #fff;
    font-weight: 800;
}

.blog-content ul,
.blog-content ol {
    padding-left: 24px;
}

.blog-content code {
    background: rgba(255,255,255,0.1);
    padding: 2px 6px;
    border-radius: 6px;
}

.blog-content pre {
    overflow-x: auto;
    background: #05070d;
    padding: 20px;
    border-radius: 12px;
}

.blog-content pre code {
    background: none;
    padding: 0;
}

.blog-cta {
    margin-top: 40px;
    padding: 17px;
    border-radius: 16px;
    background: rgba(255,255,255,0.08);
    text-align: center;
}

.cta-button {
    display: inline-block;
    margin-top: 16px;
    margin-bottom: 16px;
    padding: 14px 24px;
    border-radius: 999px;
    background: #fff;
    color: #111;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.2s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(255,255,255,0.18);
}

.site-footer {
    padding: 20px;
    text-align: center;
    color: #aaa;
}

.blog-hero {
    margin-bottom: 64px;
}

.blog-label {
    color: #aaa;
    font-size: 14px;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.blog-hero h1 {
    font-size: clamp(34px, 6vw, 56px);
    line-height: 1.2;
    margin: 0 0 20px;
}

.blog-lead {
    color: #ccc;
    font-size: 18px;
    line-height: 1.9;
    margin: 0;
}

.article-section {
    margin-top: 32px;
}

.section-header {
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 28px;
    margin-bottom: 8px;
}

.section-header p {
    color: #aaa;
    margin: 0;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.article-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 18px;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.article-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,255,255,0.22);
    background: rgba(255,255,255,0.08);
}

.article-link {
    display: block;
    height: 100%;
    padding: 24px;
    color: inherit;
    text-decoration: none;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    margin-bottom: 18px;
    color: #aaa;
    font-size: 13px;
}

.article-category {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-size: 12px;
}

.article-card h3 {
    font-size: 20px;
    line-height: 1.5;
    margin: 0 0 14px;
}

.article-card p {
    color: #cfcfcf;
    font-size: 15px;
    margin: 0 0 22px;
}

.read-more {
    color: #fff;
    font-weight: 700;
    font-size: 14px;
}

.kana {
    font-size: 0.5em;
    font-weight: 400;
    color: #aaa;
}

.blog-navigation {
    margin-top: 16px;
}

.blog-navigation-link {
    display: block;
    padding: 18px 24px;
    border-radius: 12px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.08);
    text-decoration: none;
}
.blog-navigation-link:visited {
    color: inherit;
}

.blog-navigation-label {
    display: block;
    color: #888;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.blog-navigation-title {
    display: block;
    margin-top: 6px;

    color: #fff;
    font-size: 18px;
    font-weight: 700;
}

.cta-note {
    margin-top: 5px;
    color: #bdbdbd;
    font-size: 14px;
}

@media (max-width: 900px) {
    .article-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .blog-article {
        padding: 28px 22px;
    }

    .article-grid {
        grid-template-columns: 1fr;
    }

    .article-link {
        padding: 22px;
    }
}


/* =========================
   Markdown Table
   ========================= */

table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

th,
td {
    border: 1px solid #444;
    padding: 12px;
}

th {
    background: #1b2230;
}

/* =========================
   Mobile Table
   ========================= */

@media (max-width: 768px) {

    .blog-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

}

.blog-content blockquote {
    border-left: 4px solid #7c8cff;
    padding: 12px 20px;
    margin: 24px 0;
    background: rgba(124,140,255,0.08);
}

.blog-content code {
    background: #1f2635;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.95em;
}

.blog-content hr {
    border: none;
    border-top: 1px solid #2c3445;
    margin: 40px 0;
}


/* =========================
   画像
   ========================= */
   
.blog-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 40px auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}