/* ============================================================
   history.css  60年のあゆみ 年表ページ
   ============================================================ */

.history-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px 20px 60px;
}

/* PDFダウンロードボックス */
.pamphlet-dl {
    background: #e8f5e9;
    border: 1px solid #c8e6c9;
    border-radius: 8px;
    padding: 20px 25px;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.pamphlet-dl p { margin: 0 0 12px; }
.pamphlet-cover {
    width: 90px;
    flex-shrink: 0;
    border: 1px solid #aaa;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.2);
}

/* 時代ジャンプナビゲーション */
.era-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 50px;
}
.era-nav a {
    background: var(--main-green);
    color: #fff;
    text-decoration: none;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
    transition: background 0.2s;
}
.era-nav a:hover {
    background: var(--main-green-dark);
    color: #fff;
    text-decoration: none;
}

/* 時代セクション見出し */
.era { margin-bottom: 60px; }

.era-heading {
    background: var(--main-green);
    color: #fff;
    padding: 14px 22px;
    border-radius: 6px;
    font-size: 1.25rem;
    border-left: none;
    margin-bottom: 30px;
}
.era-label {
    display: block;
    font-size: 0.82rem;
    opacity: 0.85;
    margin-bottom: 3px;
    font-weight: normal;
}

/* タイムライン本体 */
.timeline {
    border-left: 3px solid var(--main-green);
    margin-left: 18px;
}

.timeline-year {
    display: flex;
    gap: 16px;
    margin-bottom: 18px;
    position: relative;
}
.timeline-year::before {
    content: '';
    width: 13px;
    height: 13px;
    background: var(--main-green);
    border-radius: 50%;
    position: absolute;
    left: -8px;
    top: 9px;
    flex-shrink: 0;
}

.year-badge {
    font-weight: bold;
    font-size: 1rem;
    color: var(--main-green-dark);
    min-width: 72px;
    flex-shrink: 0;
    padding-left: 14px;
    padding-top: 6px;
}

.year-events { flex: 1; padding-top: 4px; }

.year-events ul {
    margin: 0;
    padding: 0;
    list-style: none;
}
.year-events li {
    margin-bottom: 4px;
    line-height: 1.7;
}

.count {
    color: #555;
    font-size: 0.88em;
}

.year-events li:has(.event-special) {
    font-weight: bold;
    color: #111;
}
.event-special {
    font-weight: bold;
    color: #111;
}

/* 重要マイルストーン行 */
.event-milestone {
    font-weight: bold;
}

/* ユニット名ラベル */
.unit-label {
    display: inline-block;
    font-size: 0.8em;
    font-weight: bold;
    padding: 1px 8px;
    border-radius: 10px;
    margin-right: 3px;
    vertical-align: middle;
}
.unit-shukko   { background: #e8f5e9; color: #2e7d32; }
.unit-furusato { background: #fff3e0; color: #e65100; }
.unit-kibou    { background: #e3f2fd; color: #1565c0; }

@media (max-width: 600px) {
    .timeline { margin-left: 10px; }
    .timeline-year { flex-direction: column; gap: 4px; }
    .year-badge { padding-left: 12px; }
}