/* イベント履歴ページスタイル */
.event-header { 
    text-align: center; 
    margin-bottom: 30px; 
}

.event-header img { 
    max-width: 100%; 
    height: auto; 
}

.year-title {
    background-color: var(--main-color-light);
    color: white;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: 1.2rem;
    margin-bottom: 15px;
    text-align: center;
}

.event-list {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.event-list td {
    padding: 12px 15px;
    border: 1px solid rgba(108, 92, 231, 0.1);
    background-color: white;
}

.date-cell {
    width: 120px;
    background-color: rgba(108, 92, 231, 0.05);
    text-align: center;
    font-size: 0.9rem;
}

.event-title {
    font-weight: 500;
    transition: var(--transition);
}

.event-title.game-update { 
    color: var(--main-color); 
    font-weight: 600; 
}

.event-title a {
    color: inherit;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
}

.event-title a:hover {
    color: var(--accent-color);
    transform: translateX(5px);
}

/* タブ切り替え */
.tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid rgba(108, 92, 231, 0.1);
    overflow-x: auto;
    scrollbar-width: none;
}

.tabs::-webkit-scrollbar { 
    display: none; 
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
    white-space: nowrap;
    position: relative;
    transition: var(--transition);
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--main-color);
    transition: var(--transition);
}

.tab-btn.active { 
    color: var(--main-color); 
}

.tab-btn.active::after { 
    width: 100%; 
}

.tab-content { 
    display: none; 
}

.tab-content.active { 
    display: block; 
}

@media (max-width: 768px) {
    .event-list td { 
        padding: 10px; 
    }
    .date-cell { 
        width: 100px; 
        font-size: 0.85rem; 
    }
    .tab-btn { 
        padding: 8px 15px; 
        font-size: 0.9rem; 
    }
}