/**
 * 共通カードスタイル
 *
 * 複数ページで共有されるカードコンポーネント。
 * アクセントカラーは CSS変数 var(--accent) で制御。
 */

/* ==========================================================================
   イベントカード
   ========================================================================== */

.event-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.event-card:hover {
    border-color: var(--accent, #6366f1);
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.event-card__image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    display: block;
}

.event-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.event-card:hover .event-card__image img {
    transform: scale(1.05);
}

.event-card__image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
}

.event-card__image-placeholder i {
    width: 3rem;
    height: 3rem;
    color: #cbd5e1;
}

.event-card__date-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 0.5rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.event-card__date-month {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--accent, #6366f1);
}

.event-card__date-day {
    font-size: 1.25rem;
    font-weight: 800;
    color: #1e293b;
    line-height: 1;
}

.event-card__content {
    padding: 1.25rem;
}

.event-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 0.75rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.event-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.event-card__title a:hover {
    color: var(--accent, #6366f1);
}

.event-card__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: #64748b;
}

.event-card__meta i {
    width: 1rem;
    height: 1rem;
    color: #94a3b8;
}

/* ==========================================================================
   動画カード
   ========================================================================== */

.video-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.video-card:hover {
    border-color: var(--accent, #e11d48);
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.video-card__image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    display: block;
}

.video-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.video-card:hover .video-card__image img {
    transform: scale(1.05);
}

.video-card__image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
}

.video-card__image-placeholder i {
    width: 3rem;
    height: 3rem;
    color: #cbd5e1;
}

.video-card__play-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .video-card__play-icon {
    opacity: 1;
}

.video-card__play-icon i {
    width: 3rem;
    height: 3rem;
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.video-card__type-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.25rem 0.5rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 0.625rem;
    font-weight: 700;
    border-radius: 0.25rem;
    letter-spacing: 0.05em;
}

.video-card__duration {
    position: absolute;
    bottom: 0.75rem;
    right: 0.75rem;
    padding: 0.125rem 0.375rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 0.25rem;
}

.video-card__content {
    padding: 1rem 1.25rem;
}

.video-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 0.5rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.video-card__title a:hover {
    color: var(--accent, #e11d48);
}

.video-card__meta {
    font-size: 0.8125rem;
    color: #64748b;
}

/* ==========================================================================
   学校カード（ライトテーマベース）
   ========================================================================== */

.school-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.school-card:hover {
    border-color: var(--accent, #3b82f6);
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.school-card__image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    display: block;
}

.school-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.school-card:hover .school-card__image img {
    transform: scale(1.05);
}

.school-card__image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
}

.school-card__image-placeholder i {
    width: 3rem;
    height: 3rem;
    color: #cbd5e1;
}

.school-card__content {
    padding: 1.25rem;
}

.school-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 0.5rem;
    line-height: 1.4;
}

.school-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.school-card__title a:hover {
    color: var(--accent, #3b82f6);
}

.school-card__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: #64748b;
}

.school-card__meta i {
    width: 1rem;
    height: 1rem;
    color: #93c5fd;
}

/* ==========================================================================
   記事カード
   ========================================================================== */

.article-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.article-card:hover {
    border-color: var(--accent, #6366f1);
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.article-card__image {
    aspect-ratio: 16/10;
    overflow: hidden;
    display: block;
}

.article-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.article-card:hover .article-card__image img {
    transform: scale(1.05);
}

.article-card__content {
    padding: 1.25rem;
}

.article-card__meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.article-card__category {
    display: inline-flex;
    padding: 0.25rem 0.625rem;
    background: color-mix(in srgb, var(--accent, #6366f1) 15%, white);
    color: var(--accent, #6366f1);
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 0.375rem;
}

.article-card__meta time {
    font-size: 0.75rem;
    color: #64748b;
}

.article-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0 0 0.75rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.article-card__title a:hover {
    color: var(--accent, #6366f1);
}

.article-card__excerpt {
    font-size: 0.8125rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==========================================================================
   注目カード（Featured Card）
   ========================================================================== */

.featured-card {
    background: #ffffff;
    border: 2px solid color-mix(in srgb, var(--accent, #eab308) 30%, transparent);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.featured-card:hover {
    border-color: var(--accent, #eab308);
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px color-mix(in srgb, var(--accent, #eab308) 15%, transparent), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

.featured-card__image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    display: block;
}

.featured-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.featured-card:hover .featured-card__image img {
    transform: scale(1.05);
}

.featured-card__image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--accent, #eab308) 10%, white);
}

.featured-card__image-placeholder i {
    width: 3rem;
    height: 3rem;
    color: color-mix(in srgb, var(--accent, #eab308) 40%, transparent);
}

.featured-card__badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    background: linear-gradient(135deg, var(--accent, #eab308), color-mix(in srgb, var(--accent, #eab308) 70%, white));
    color: #ffffff;
    font-size: 0.6875rem;
    font-weight: 700;
    border-radius: 9999px;
    box-shadow: 0 2px 4px color-mix(in srgb, var(--accent, #eab308) 40%, transparent);
}

.featured-card__date {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 0.5rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.featured-card__date-month {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--accent, #eab308);
}

.featured-card__date-day {
    font-size: 1.25rem;
    font-weight: 800;
    color: #1e293b;
    line-height: 1;
}

.featured-card__content {
    padding: 1.25rem;
    flex: 1;
}

.featured-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.featured-card__title a:hover {
    color: var(--accent, #eab308);
}

.featured-card__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: #64748b;
}

.featured-card__meta i {
    width: 1rem;
    height: 1rem;
    color: var(--accent, #eab308);
}