/* ============================================
   s-loop-04.css - Column Card (subgrid対応)
   Row 1: サムネイル (16:9)
   Row 2: メタ + タイトル
   Row 3: 監修者フッター
   ============================================ */

/* --- Card container --- */
.s-loop-04 {
    container-type: inline-size;
    display: grid;
    grid-template-columns: var(--thumb-md) minmax(0, 1fr);
    grid-template-rows: subgrid;
    grid-row: span 3;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* --- Row 1: Thumbnail --- */
.s-loop-04__thumbnail {
    display: block;
    position: relative;
    width: 100%;
    align-self: stretch;
}

.s-loop-04__image {
    position: relative;
    aspect-ratio: auto;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--color-bg-sub);
}

.s-loop-04__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity var(--transition-normal);
}

.s-loop-04__thumbnail:hover .s-loop-04__image img {
    opacity: 0.85;
}

.s-loop-04__image-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.s-loop-04__image-placeholder .material-icons-outlined {
    font-size: var(--font-size-5-xl);
    color: var(--color-border);
}

.s-loop-04__logo {
    width: 50%;
    max-width: 12rem;
    height: auto;
    opacity: 0.25;
}

.s-loop-04__favorite {
    position: absolute;
    top: var(--space-xs);
    right: var(--space-xs);
    z-index: 1;
}

/* --- Row 2: Body (meta + title) --- */
.s-loop-04__body {
    padding: var(--space-lg) var(--space-lg) 0;
}

@container (min-width: 600px) {
    .s-loop-04__body {
        padding: var(--space-lg) var(--space-xl) 0;
    }
}

@media (min-width: 1024px) {
    .s-loop-04__avatar {
        width: 2.5rem;
        height: 2.5rem;
    }

    .s-loop-04__supervisor {
        gap: var(--space-xs);
    }

    .s-loop-04__supervisor-name,
    .s-loop-04__supervisor-role {
        font-size: var(--font-size-3-xs);
    }
}

/* Meta row: badges + date */
.s-loop-04__meta {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-xs);
}

.s-loop-04__date {
    display: flex;
    align-items: center;
    gap: var(--space-3-xs);
    color: var(--color-text-light);
    font-size: var(--font-size-2-xs);
}

.s-loop-04__date .material-icons-outlined {
    font-size: var(--font-size-sm);
}

/* Title */
.s-loop-04__title-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: opacity var(--transition-fast);
}

.s-loop-04__title-link:hover {
    opacity: 0.7;
}

.s-loop-04__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-compact);
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}

@container (min-width: 600px) {
    .s-loop-04__title {
        font-size: var(--font-size-lg);
    }
}

/* --- Row 3: Footer (supervisor) --- */
.s-loop-04__footer {
    align-self: end;
    padding: var(--space-xs) var(--space-lg) var(--space-lg);
}

@container (min-width: 600px) {
    .s-loop-04__footer {
        padding: var(--space-xs) var(--space-xl) var(--space-xl);
    }
}

.s-loop-04__footer--empty {
    padding-bottom: var(--space-lg);
}

@container (min-width: 600px) {
    .s-loop-04__footer--empty {
        padding-bottom: var(--space-xl);
    }
}

.s-loop-04__supervisor {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding-block-start: var(--space-md);
}

/* モバイル: 一覧カードは左サムネイル＋右テキストのコンパクト横型 */
@container (max-width: 599px) {
    .s-loop-04 {
        /* サムネイル約40%：本文約60%（1:1.5） */
        grid-template-columns: minmax(0, 40%) minmax(0, 60%);
        grid-template-rows: auto auto;
        grid-row: auto;
    }

    .s-loop-04__thumbnail {
        grid-column: 1;
        grid-row: 1 / span 2;
        align-self: start;
    }

    .s-loop-04__image {
        width: 100%;
        aspect-ratio: 1 / 1;
        height: auto;
        min-height: 0;
        overflow: hidden;
    }

    .s-loop-04__body {
        grid-column: 2;
        grid-row: 1;
        padding: var(--space-md) var(--space-md) var(--space-xs);
        min-width: 0;
    }

    .s-loop-04__footer {
        grid-column: 2;
        grid-row: 2;
        padding: var(--space-xs) var(--space-md) var(--space-md);
    }

    .s-loop-04__avatar {
        width: 2.5rem;
        height: 2.5rem;
    }

    .s-loop-04__supervisor {
        gap: var(--space-xs);
        padding-block-start: var(--space-sm);
    }

    .s-loop-04__supervisor-name,
    .s-loop-04__supervisor-role {
        font-size: var(--font-size-3-xs);
    }
}

/* ビューポート基準のタブレット以下でも画像40%／本文60%を保証 */
@media (max-width: 1023px) {
    .s-loop-04 {
        grid-template-columns: minmax(0, 40%) minmax(0, 60%);
    }

    .s-loop-04__thumbnail {
        align-self: stretch;
    }

    .s-loop-04__image {
        aspect-ratio: auto;
        height: 100%;
        min-height: 100%;
        overflow: hidden;
    }
}

/* 上部の短いグレー線（背景・枠なしの代わりの区切り） */
.s-loop-04__supervisor::before {
    content: "";
    position: absolute;
    inset-block-start: 0;
    inset-inline-start: 0;
    width: var(--space-7-xl);
    height: 2px;
    background-color: var(--color-gray-lighter);
}

/* Avatar */
.s-loop-04__avatar {
    width: var(--icon-xs);
    height: var(--icon-xs);
    border-radius: var(--radius-pill);
    background-color: var(--color-gray-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.s-loop-04__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.s-loop-04__avatar .material-icons-outlined {
    color: var(--color-text-light);
    font-size: var(--font-size-xl);
}

/* Supervisor info */
.s-loop-04__supervisor-info {
    flex: 1;
    min-width: 0;
}

.s-loop-04__supervisor-header {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.s-loop-04__supervisor-name {
    font-size: var(--font-size-2-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@container (min-width: 600px) {
    .s-loop-04__supervisor-name {
        font-size: var(--font-size-sm);
    }
}

.s-loop-04__supervisor-role {
    font-size: var(--font-size-2-xs);
    color: var(--color-text-light);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin: 0;
}