/* タイムライン用 */
.timeline-line::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 10px;
    bottom: 0;
    width: 2px;
    background: #e2e8f0;
    z-index: 0;
}

.event-card {
    transition: all 0.2s;
}

.event-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.time-label {
    min-width: 60px;
    text-align: center;
}

/* 日付バッジ */
.date-badge {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1;
    z-index: 10;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}