/* =================================================================
   activities.css
   Activities ページ（activities.html）固有のスタイル
   Projects（カード）＋ Events（年度別の一覧。build-news.py が生成）
   ================================================================= */

body {
  background-color: #ffffff;
  line-height: 1.7;
}

/* ----- メインコンテンツエリア（中央・幅1000px） -------------------- */
.activities-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 30px 8vw 110px;
  box-sizing: content-box;
}

/* ----- 区分見出し（Projects / Events） ----------------------------- */
.act-section + .act-section { margin-top: 90px; }
.act-heading { margin-bottom: 34px; }
.act-heading-en {
  margin: 0 0 6px;
  color: var(--waseda-red);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.act-heading h3 {
  margin: 0;
  color: var(--dark-navy);
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: 1px;
}
.act-lead {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 0.93rem;
}

/* ----- Projects：カード ------------------------------------------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.project-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-top: 3px solid var(--waseda-red);
  border-radius: 6px;
  padding: 28px 26px 26px;
}
.project-card h4 {
  margin: 14px 0 10px;
  color: var(--dark-navy);
  font-size: 1.1rem;
  font-weight: 600;
}
.project-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}
.project-card a { color: var(--waseda-red); text-underline-offset: 2px; }
.project-status {
  display: inline-block;
  background: rgba(142, 23, 40, 0.08);
  color: var(--waseda-red);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
}
/* 準備中カード：枠を点線にして控えめに */
.project-card.is-preparing {
  border-style: dashed;
  border-top: 3px solid var(--border-color);
  background: var(--light-gray);
}
.project-card.is-preparing .project-status {
  background: rgba(10, 17, 40, 0.06);
  color: var(--text-muted);
}

/* ----- Events：年度ごとの一覧 ------------------------------------- */
.fy-group + .fy-group { margin-top: 44px; }
.fy-label {
  margin: 0 0 4px;
  color: var(--dark-navy);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 1px;
}
.event-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--dark-navy);
}
.event-item {
  display: flex;
  gap: 30px;
  padding: 24px 6px;
  border-bottom: 1px solid var(--border-color);
}
.event-when {
  flex: 0 0 190px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}
.event-date {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.event-role {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 20px;
  letter-spacing: 1px;
  background: #f1f3f5;
  color: #495057;
}
.role-host { background: rgba(142, 23, 40, 0.08); color: var(--waseda-red); }
.role-cohost { background: rgba(10, 17, 40, 0.08); color: var(--dark-navy); }

.event-main { flex: 1; min-width: 0; }
.event-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--dark-navy);
}
.event-title a { color: inherit; text-decoration: none; transition: color 0.2s; }
.event-title a:hover { color: var(--waseda-red); text-decoration: underline; }
.event-venue {
  margin: 6px 0 0;
  font-size: 0.87rem;
  color: var(--text-muted);
}
.event-report {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--waseda-red);
  text-decoration: none;
}
.event-report:hover { text-decoration: underline; }
.event-empty { color: var(--text-muted); font-size: 0.9rem; }

/* ----- スマホ対応（768px以下） ------------------------------------ */
@media (max-width: 768px) {
  .activities-container { padding: 16px 6vw 80px; }
  .act-section + .act-section { margin-top: 64px; }
  .act-heading h3 { font-size: 1.35rem; }
  .project-grid { grid-template-columns: 1fr; }
  .event-item { flex-direction: column; gap: 10px; padding: 20px 2px; }
  .event-when { flex: none; flex-direction: row; align-items: center; gap: 12px; }
}

/* ----- 見出しのアクセント画像（page-head 右上） ------------------- */
.page-accent { background-image: url('../images/vision.jpeg'); }