/*+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
イベントページ固有のカスタマイズ
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+*/
.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23a855f7" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%23a855f7" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="%23a855f7" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="%23a855f7" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="%23a855f7" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

/*+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
イベントグリッド
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+*/
.events-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

/*+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
イベントカード
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+*/
.event-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/*+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
イベント画像
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+*/
.event-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.event-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/*+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
イベントコンテンツ
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+*/
.event-content {
    padding: 1.5rem;
}

.event-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.event-month {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-main);
    background: rgba(139, 92, 246, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    white-space: nowrap;
}

.event-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0;
}

.event-description {
    color: #6b7280;
    line-height: 1.6;
    font-size: 0.875rem;
    margin: 0;
}

/*+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
レスポンシブ対応
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+*/
@media (max-width: 768px) {
    .events-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .event-content {
        padding: 1rem;
    }
    
    .event-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .event-title {
        font-size: 1.125rem;
    }
    
    .event-description {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .event-image {
        height: 150px;
    }
    
    .event-content {
        padding: 0.75rem;
    }
}