@charset "UTF-8";

.blog-main {
    background-color: #E8F4FD;
    padding: 3em 1.5em;
}

.blog-index,
.blog-single {
    margin: 0 auto;
    max-width: 1200px;
}

.blog-index__header {
    text-align: center;
    margin-bottom: 3em;
}

.blog-index__heading {
    font-size: 2.4rem;
    font-weight: 700;
    color: #233990;
    margin-bottom: 0.5em;
}

.blog-index__intro {
    color: #333333;
    font-size: 1rem;
    line-height: 1.8;
}

.blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(406px, 0fr));
    gap: 2em;
}

.blog-card {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(12, 45, 104, 0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.blog-card__link {
    display: flex;
    flex-direction: column;
    color: inherit;
    height: 100%;
}

.blog-card__thumbnail-wrapper {
    position: relative;
    padding-top: 56.25%;
    background-color: #d9e8f7;
}

.blog-card__thumbnail {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-card__body {
    padding: 1.5em;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
}

.blog-card__meta {
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #6f7ba8;
    margin-bottom: 0.75em;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75em;
}

.blog-card__title {
    font-size: 1.25rem;
    line-height: 1.5;
    color: #233990;
    margin-bottom: 0.75em;
}

.blog-card__excerpt {
    color: #333333;
    line-height: 1.7;
    margin-top: auto;
}

.blog-pagination {
    margin-top: 3em;
    display: flex;
    justify-content: center;
    gap: 0.5em;
    flex-wrap: wrap;
}

.blog-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5em;
    height: 2.5em;
    border-radius: 999px;
    font-size: 0.95rem;
    color: #233990;
    background-color: #ffffff;
    border: 1px solid rgba(35, 57, 144, 0.15);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.blog-pagination .page-numbers.current,
.blog-pagination .page-numbers:hover {
    background-color: #233990;
    color: #ffffff;
}

.blog-single__article {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(12, 45, 104, 0.12);
    padding: 2.5em 3em;
}

.blog-single__meta {
    font-size: 1.9rem;
    color: #6f7ba8;
    margin-bottom: 1em;
    display: flex;
    flex-wrap: wrap;
    gap: 1em;
}

.blog-single__meta-categories {
    display: inline-flex;
    gap: 0.75em;
}

.blog-single__title {
    font-size: 3.5rem;
    line-height: 1.3;
    font-weight: 700;
    color: #233990;
    margin-bottom: 1.5em;
}

.blog-single__content {
    font-size: 1.75rem;
    line-height: 1.9;
    color: #333333;
}
.blog-single__content h1,
.blog-single__content h2,
.blog-single__content h3 {
    font-family: "Roboto", "Noto Sans JP", sans-serif;
    font-weight: 700;
    color: #233990;
    margin: 2.5em 0 1em;
}

.blog-single__content h1:first-child,
.blog-single__content h2:first-child,
.blog-single__content h3:first-child {
    margin-top: 0;
}

.blog-single__content h1 {
    font-size: 3rem;
    padding-bottom: 0.4em;
    border-bottom: 3px solid rgba(35, 57, 144, 0.2);
}

.blog-single__content h2 {
    font-size: 2.6rem;
    padding-left: 0.85em;
    border-left: 6px solid #2d6cdf;
}

.blog-single__content h3 {
    font-size: 1.3rem;
    padding: 0.35em 0.75em;
    border-radius: 999px;
    background: rgba(45, 108, 223, 0.12);
    display: inline-block;
}

.blog-single__content ul {
    list-style: none;
    padding-left: 0;
    margin-left: 0;
}

.blog-single__content ul li {
    position: relative;
    padding-left: 1.75em;
    margin-bottom: 0.9em;
}

.blog-single__content ul ul {
    margin-top: 0.5em;
    margin-left: 1.5em;
}

.blog-single__content ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 0.55em;
    height: 0.55em;
    border-radius: 0.25em;
    background: linear-gradient(135deg, #45b2ff, #233990);
    box-shadow: 0 2px 6px rgba(35, 57, 144, 0.2);
}

.blog-single__content p + p {
    margin-top: 1.5em;
}

.blog-single__content img {
    border-radius: 8px;
    margin: 5em auto;
    display: block;
}

.blog-single__pagination {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1em;
    margin-top: 2.5em;
}

.blog-single__pagination a {
    color: #233990;
    font-weight: 600;
}

@media screen and (max-width: 767px) {
    .blog-main {
        padding: 2.5em 1em;
    }

    .blog-single__article {
        padding: 2em 1.5em;
    }

    .blog-single__title {
        font-size: 2.0rem;
    }

    .blog-index__heading {
        font-size: 2rem;
    }
}