/* ============================================================
   One Day — 生徒の1日
============================================================ */

/* ヒーロービジュアル（2カラム：左テキスト／右画像） */
.od-visual {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 20px;
  background: var(--cream);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.od-visual-text {
  padding: 0;
  color: var(--black);
}
.od-visual-img {
  position: relative;
}
.od-visual-img img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  display: block;
  border-radius: 3px;
}
.od-visual-catch {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 300;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
  color: var(--black);
}
.od-visual-sub {
  font-size: 15px;
  font-weight: 300;
  line-height: 2.3;
  color: var(--dark);
}

/* タイムライン */
.od-section {
  background: var(--white);
  padding: 56px 0 80px;
}
.od-timeline {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

/* 縦ライン */
.od-timeline::before {
  content: '';
  position: absolute;
  left: calc(24px + 36px);
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(0,61,128,0.12);
}

/* 各アイテム */
.od-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  margin-bottom: 48px;
  position: relative;
}
.od-item:last-child { margin-bottom: 0; }

/* 時刻 */
.od-time {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 4px;
  position: relative;
}
.od-time::after {
  content: '';
  position: absolute;
  top: 14px;
  right: -13px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--white);
  box-shadow: 0 0 0 1px var(--gold);
}
.od-time-num {
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--blue-dark);
  letter-spacing: 0.02em;
  line-height: 1;
  margin-bottom: 4px;
}
.od-time-label {
  font-size: 9px;
  font-weight: 400;
  color: var(--mid);
  letter-spacing: 0.1em;
  text-align: center;
  white-space: nowrap;
}

/* コンテンツ */
.od-content { padding-top: 2px; }

/* 画像 2枚グリッド */
.od-imgs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 16px;
  border-radius: 4px;
  overflow: hidden;
}
.od-imgs img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}
.od-imgs--single { grid-template-columns: 1fr; }
.od-imgs--single img { aspect-ratio: 3/2; }

/* テキスト */
.od-subject {
  font-family: 'Outfit', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold-dark);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.od-text p {
  font-size: 13px;
  font-weight: 300;
  color: var(--mid);
  line-height: 2;
}

/* 最終下校 */
.od-item--end .od-time::after {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  box-shadow: 0 0 0 1px var(--blue-dark);
}
.od-text--end p {
  font-family: 'Noto Serif JP', serif;
  font-size: 16px;
  color: var(--blue-dark);
  font-weight: 400;
  line-height: 2;
}

/* 赤いノート */
.od-notebook {
  background: var(--cream);
  padding: 64px 24px;
}
.od-notebook-inner {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
  align-items: center;
}
.od-notebook-img {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.od-notebook-img img {
  width: 100%;
  border-radius: 4px;
  display: block;
  object-fit: cover;
}
.od-notebook-img img:first-child { aspect-ratio: 2/1; }
.od-notebook-img img:last-child  { aspect-ratio: 3/2; }
.od-notebook-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(16px, 2.5vw, 22px);
  font-weight: 400;
  color: var(--blue-dark);
  line-height: 1.7;
  margin: 16px 0;
}
.od-notebook-text p {
  font-size: 13px;
  font-weight: 300;
  color: var(--mid);
  line-height: 2.2;
}

/* ========== スマホ ========== */
@media (max-width: 600px) {
  .od-visual {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 48px 20px;
  }
  .od-visual-img {
    order: -1; /* スマホでは画像を上に */
  }
  .od-visual-text {
    padding: 0;
  }

  .od-timeline::before { left: calc(24px + 28px); }
  .od-item {
    grid-template-columns: 56px 1fr;
    gap: 16px;
    margin-bottom: 40px;
  }
  .od-time::after { right: -10px; }
  .od-time-num { font-size: 12px; }
  .od-imgs { gap: 4px; margin-bottom: 12px; }
  .od-text p { font-size: 13px; }

  .od-notebook-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .od-notebook-img {
    max-width: 240px;
    margin: 0 auto;
  }
}