/* ===================================
   Achievement Archive
   =================================== */

/* ---- Page Hero ---- */
.ac-page-hero {
    background-color: #ffffff;
    border-bottom: 1px solid #e8e8e8;
    padding: 40px 0 0;
}

.ac-page-hero__inner {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 30px;
}

.ac-page-hero__heading {
    font-size: 60px;
    font-weight: 700;
    color: #C0401A;
    letter-spacing: 0.02em;
    line-height: 1.1;
    margin: 0 0 8px;
}

.ac-page-hero__sub {
    font-size: 18px;
    color: #C0401A;
    margin: 0 0 32px;
}

/* ---- List Section ---- */
.ac-list-section {
    padding: 40px 0 80px;
}

.ac-list-section__inner {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 30px;
}

/* ---- Card Grid ---- */
.ac-card-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px 24px;
    margin-bottom: 60px;
}

/* ---- Card ---- */
.ac-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s;
}

.ac-card__link:hover {
    opacity: 0.8;
}

/* サムネイル */
.ac-card__thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #000;
}

.ac-card__thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ac-card__thumb-placeholder {
    width: 100%;
    height: 100%;
    background: #ccc;
}

/* 再生アイコン */
.ac-card__play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 34px;
    pointer-events: none;
    opacity: 0.9;
    transition: opacity 0.2s;
}

.ac-card__link:hover .ac-card__play-icon {
    opacity: 1;
}

/* カードボディ */
.ac-card__body {
    padding: 10px 0 0;
}

.ac-card__date {
    display: block;
    font-size: 12px;
    color: #888;
    margin-bottom: 6px;
}

.ac-card__title {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    margin: 0;
    color: #222;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---- Pagination ---- */
.ac-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ac-pagination a,
.ac-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    font-size: 14px;
    color: #333;
    text-decoration: none;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s;
}

.ac-pagination .current {
    background: #E97730;
    color: #fff;
    border-color: #E97730;
}

.ac-pagination a:hover {
    background: #f5f5f5;
}

/* ---- No Posts ---- */
.ac-no-posts {
    padding: 40px 0;
    text-align: center;
    color: #888;
    font-size: 15px;
}

/* ===================================
   Tablet ( <= 1024px )
   =================================== */
@media (max-width: 1024px) {
    .ac-page-hero__inner {
        padding: 0 32px;
    }

    .ac-list-section__inner {
        padding: 0 32px;
    }

    .ac-card-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===================================
   Mobile ( <= 768px )
   =================================== */
@media (max-width: 768px) {
    .ac-page-hero__inner {
        padding: 0 16px;
    }

    .ac-page-hero__heading {
        font-size: 40px;
        margin-bottom: 20px;
    }

    .ac-list-section {
        padding-bottom: 60px;
    }

    .ac-list-section__inner {
        padding: 0 16px;
    }

    .ac-card-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px 16px;
    }
}

@media (max-width: 480px) {
    .ac-card-list {
        grid-template-columns: 1fr;
    }
}