@charset "UTF-8";

a {
  text-decoration: none;
  color: #333;
}

/* ヒーローセクション */

#product-hero {
  margin-top: 160px;
  position: relative;
  z-index: 10;
  overflow: hidden;
}

#product-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  margin-left: -50vw;
  width: 100vw;
  height: 100%;
  background: #f8f8f8;
  z-index: -1;
}

.hero__inner {
  width: 1080px;
  margin: 0 auto;
  padding: 120px 0 100px;
  text-align: center;
}

.hero__text {
  max-width: 820px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-block;
  background: linear-gradient(90deg, #5ae3d1, #1ebebb);
  color: #fff;
  font-size: 13px;
  font-weight: bold;
  letter-spacing: 0.2em;
  padding: 4px 18px;
  border-radius: 3px;
  margin-bottom: 16px;
}

.hero__subtitle {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 18px;
  font-weight: 300;
  color: #888;
  letter-spacing: 0.1em;
  margin: 0 0 8px;
}

.hero__title {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 64px;
  font-weight: 700;
  color: #333;
  letter-spacing: 0.02em;
  margin: 0 0 24px;
  line-height: 1.2;
}

.hero__lead {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 22px;
  font-weight: 300;
  color: #555;
  line-height: 1.8;
  margin: 0;
}


/* サマリーセクション */

#summary {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.section__inner {
  width: 1080px;
  margin: 0 auto;
}

.section__title {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 28px;
  font-weight: 400;
  color: #333;
  margin: 0 0 30px;
  padding-bottom: 16px;
  border-bottom: 2px solid #1ebebb;
  display: inline-block;
}

.summary__content {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.summary__text {
  flex: 1;
}

.summary__img {
  flex: 0 0 460px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
  border: 1px solid #e8e8e8;
}

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

.section__lead {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 18px;
  font-weight: 300;
  line-height: 2em;
  color: #333;
  margin: 0 0 20px;
}

.section__text {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 2em;
  color: #555;
  margin: 0;
}


/* 課題セクション */

#challenges {
  padding: 80px 0;
  position: relative;
  z-index: 10;
}

#challenges::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  margin-left: -50vw;
  width: 100vw;
  height: 100%;
  background: #f8f8f8;
  z-index: -1;
}

.section__heading {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 40px;
  font-weight: 600;
  color: #333;
  margin: 0 0 10px;
  letter-spacing: 0.05em;
}

.section__heading small {
  display: block;
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 16px;
  font-weight: 300;
  color: #888;
  margin-top: 8px;
  letter-spacing: 0.1em;
}

.section__intro {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 16px;
  font-weight: 300;
  color: #555;
  margin: 0 0 40px;
}

.challenges__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  list-style: none;
  padding: 0;
}

.challenges__list li {
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  border: 1px solid #e8e8e8;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.challenge__icon {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 32px;
  font-weight: bold;
  color: #1ebebb;
  margin-bottom: 12px;
}

.challenges__list h3 {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: #333;
  margin: 0 0 12px;
}

.challenges__list p {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.8em;
  color: #555;
  margin: 0;
}


/* 特徴セクション */

#features {
  padding: 80px 0;
  position: relative;
  z-index: 10;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.features__grid li {
  background: #f8f8f8;
  border: 1px solid #e8e8e8;
  padding: 30px;
  border-radius: 8px;
  transition: box-shadow 0.3s;
}

.features__grid li:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.features__grid h3 {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: #333;
  margin: 0 0 12px;
}

.features__grid h3::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 18px;
  background: linear-gradient(180deg, #5ae3d1, #1ebebb);
  margin-right: 10px;
  vertical-align: middle;
  border-radius: 2px;
}

.features__grid p {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.8em;
  color: #555;
  margin: 0;
}


/* スクリーンショットセクション */

#screenshots {
  padding: 80px 0;
  position: relative;
  z-index: 10;
}

#screenshots::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  margin-left: -50vw;
  width: 100vw;
  height: 100%;
  background: #f8f8f8;
  z-index: -1;
}

.screenshots__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.screenshot__item {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #e8e8e8;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

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

.screenshot__item p {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: #666;
  text-align: center;
  padding: 14px;
  margin: 0;
}


/* 料金セクション */

#pricing {
  padding: 80px 0;
  position: relative;
  z-index: 10;
}

#pricing .section__heading {
  text-align: center;
}

#pricing .section__heading small {
  text-align: center;
}

.pricing__card {
  max-width: 520px;
  margin: 40px auto 0;
  border: 2px solid #1ebebb;
  border-radius: 12px;
  overflow: hidden;
}

.pricing__header {
  background: linear-gradient(90deg, #5ae3d1, #1ebebb);
  padding: 30px;
  text-align: center;
}

.pricing__header h3 {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: 28px;
  color: #fff;
  margin: 0 0 12px;
}

.pricing__price {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 18px;
  color: #fff;
  margin: 0 0 8px;
}

.pricing__price span {
  font-size: 36px;
  font-weight: 500;
  color: #fff;
}

.pricing__note {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

.pricing__features {
  list-style: none;
  padding: 24px 30px;
  margin: 0;
  background: #fff;
}

.pricing__features li {
  font-family: "Noto Sans JP", "Inter", sans-serif;
  font-size: 15px;
  font-weight: 300;
  color: #333;
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}

.pricing__features li:last-child {
  border-bottom: none;
}

.pricing__features li::before {
  content: '✓';
  color: #1ebebb;
  font-weight: bold;
  margin-right: 10px;
}


/* CTA */

#contact a {
  height: 300px;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

#contact div.contact__inner {
  margin: auto;
}


/* スマホレイアウト */

@media screen and (max-width: 768px) {

  #product-hero {
    margin-top: 80px;
  }

  .hero__inner {
    width: 85vw;
    padding: 60px 0;
  }

  .hero__title {
    font-size: 36px;
  }

  .hero__subtitle {
    font-size: 14px;
  }

  .hero__lead {
    font-size: 16px;
  }

  #summary {
    padding: 60px 0;
  }

  .section__inner {
    width: 85vw;
    margin: 0 auto;
  }

  .summary__content {
    flex-direction: column;
  }

  .summary__img {
    flex: none;
    width: 100%;
  }

  .section__title {
    font-size: 22px;
  }

  .section__lead {
    font-size: 16px;
  }

  .section__text {
    font-size: 14px;
  }

  #challenges {
    padding: 60px 0;
  }

  .section__heading {
    font-size: 28px;
  }

  .section__heading small {
    font-size: 14px;
  }

  .challenges__list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .challenges__list li {
    padding: 24px;
  }

  #features {
    padding: 60px 0;
  }

  .features__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .features__grid li {
    padding: 24px;
  }

  #screenshots {
    padding: 60px 0;
  }

  .screenshots__grid {
    grid-template-columns: 1fr;
  }

  #pricing {
    padding: 60px 0;
  }

  .pricing__card {
    max-width: 100%;
  }

  #contact a {
    height: 180px;
  }
}


.chibi-mascot {
  text-align: center;
  padding: 40px 0 60px;
}

.chibi-mascot img {
  width: 160px;
  height: auto;
  opacity: 0.85;
}