/* ===========================================
   About Section
   "動画でカリトルくんとは"
   Figma: y=1805-2649
   Background: red overlay (opacity=0.15) + diamond pattern (opacity=0.4)
   Layout: 2-column timeline (stage labels left, video cards right)
   =========================================== */

.about {
  position: relative;
  padding: 40px 16px 32px;
  overflow: hidden;
  background-color: #FFFFFF;
}

/* Red overlay background removed - Figma uses white bg */
.about::before {
  content: '';
  display: none;
}

/* Diamond pattern overlay - removed in v2 (Figma uses plain white) */
.about__bg-pattern {
  display: none;
}

.about__inner {
  position: relative;
  z-index: 1;
  max-width: 343px;
  margin: 0 auto;
}

/* ===========================================
   Title
   =========================================== */

.about__title {
  text-align: left;
  margin-bottom: 16px;
}

.about__title-heading {
  font-size: 28px;
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
  position: relative;
  display: inline-block;
}

.about__title-heading .text-primary {
  font-size: 28px;
  color: var(--color-primary);
  background: linear-gradient(transparent 55%, rgba(216, 46, 46, 0.25) 55%);
  padding: 0 2px;
}

.about__title-suffix {
  font-size: 22px;
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
  margin-left: 4px;
}

.about__title-marker {
  display: none;
}

/* ===========================================
   Description
   =========================================== */

.about__description {
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  text-align: left;
  color: var(--color-black);
  margin-bottom: 24px;
}

/* ===========================================
   Timeline - image based (PC/SP switching)
   =========================================== */

.about__timeline {
  position: relative;
}

.about__flow-img {
  width: 100%;
  height: auto;
  display: block;
}

.about__flow-img--pc {
  display: none;
}

.about__flow-img--sp {
  display: block;
  max-width: 400px;
  margin: 0 auto;
}

/* Summary block: text + female thumbs-up illustration */
.about__summary {
  margin-top: 32px;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: space-between;
}

.about__summary-text {
  flex: 1;
  font-size: 17px;
  font-weight: var(--font-weight-bold);
  line-height: 1.55;
  color: var(--color-black);
  text-align: left;
}

.about__summary-highlight {
  background: linear-gradient(transparent 55%, rgba(216, 46, 46, 0.25) 55%);
  padding: 0 2px;
  color: var(--color-primary);
}

.about__summary-illust {
  width: 85px;
  height: auto;
  flex-shrink: 0;
}

/* ============================================================
   PC (>=768px) — About: horizontal 6-stage timeline
   ============================================================ */
@media (min-width: 768px) {
  .about {
    padding: 80px 0 80px;
  }
  .about__inner {
    max-width: 1520px;
    padding: 0 40px;
  }
  .about__title {
    text-align: center;
    margin-bottom: 20px;
  }
  .about__title-heading,
  .about__title-heading .text-primary,
  .about__title-suffix {
    font-size: 44px;
  }
  .about__description {
    text-align: center;
    font-size: 20px;
    margin-bottom: 50px;
  }
  /* PC: show horizontal flow image */
  .about__flow-img--sp {
    display: none;
  }
  .about__flow-img--pc {
    display: block;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
  }
  /* Summary: centered text + illust on right */
  .about__summary {
    margin-top: 50px;
    justify-content: center;
    align-items: center;
    gap: 40px;
  }
  .about__summary-text {
    flex: 0 0 auto;
    font-size: 36px;
    text-align: center;
    line-height: 1.5;
  }
  .about__summary-illust {
    width: 200px;
  }
}