:root {
  --top-ink: #2c211d;
  --top-copy: #665c56;
  --top-red: #dc4f4e;
  --top-yellow: #e4bd25;
  --top-section-title-en: 44px;
  --top-section-title-ja: 38px;
  --top-subheading: 20px;
  --top-intro: 18px;
  --top-body: 16px;
  --top-body-leading: 1.9;
  --top-section-space: clamp(120px, 12vw, 160px);
  --top-accent-width: 84px;
  --top-action-speed: 0.25s;
}

/* Static chapter starts share hierarchy and rhythm; animated chapters retain
   their own typography and transitions. */
.world-challenge,
.gift-partner,
.entry-navigation {
  padding-top: var(--top-section-space);
  padding-bottom: var(--top-section-space);
  color: var(--top-ink);
}

.world-challenge { background: #fff; }
.gift-partner { background: #fbfaf8; }
.entry-navigation { background-color: #fff; }

.world-challenge__intro,
.gift-partner__intro,
.entry-navigation__intro {
  margin-bottom: clamp(76px, 8vw, 104px);
}

.world-challenge__line,
.gift-partner__line {
  width: var(--top-accent-width);
  height: 2px;
  margin-bottom: 24px;
}

.entry-navigation__spark {
  width: var(--top-accent-width);
  margin-bottom: 24px;
}

.entry-navigation__spark::before {
  width: var(--top-accent-width);
}

.gift-partner__intro h2 {
  color: var(--top-ink);
  font-size: var(--top-section-title-en);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: 0.045em;
}

.world-challenge__intro h2,
.entry-navigation__intro h2,
.entry-gift-show-intro h2 {
  color: var(--top-ink);
  font-size: var(--top-section-title-ja);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: 0.045em;
}

.world-challenge__intro p,
.entry-navigation__intro p {
  margin-top: 18px;
  color: var(--top-copy);
  font-size: var(--top-intro);
  font-weight: 500;
  line-height: 1.9;
  letter-spacing: 0.035em;
}

.gift-partner__people-heading {
  margin-top: 0;
  margin-bottom: clamp(44px, 5vw, 64px);
}

.gift-partner__people-heading span {
  display: block;
}

.gift-partner__intro p,
.gift-partner__people-heading h3 {
  color: var(--top-ink);
  font-size: var(--top-subheading);
  font-weight: 700;
  line-height: 1.75;
  letter-spacing: 0.04em;
}

.gift-partner__intro p {
  margin-top: 0;
}

.entry-gift-show-intro {
  margin-top: clamp(104px, 11vw, 144px);
  margin-bottom: clamp(44px, 5vw, 64px);
}

.entry-gift-show-intro__line {
  display: block;
  width: var(--top-accent-width);
  height: 2px;
  margin: 0 auto 24px;
  background: linear-gradient(90deg, var(--top-red), var(--top-yellow));
}

.world-performer__achievements li,
.gift-person__profile,
.entry-card__description,
.entry-gift-show__description {
  color: var(--top-copy);
  line-height: var(--top-body-leading);
}

.world-performer__achievements li,
.entry-gift-show__description {
  font-size: var(--top-body);
}

.world-performer h3,
.gift-person h4 {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.45;
}

.gift-person__role {
  color: var(--top-red);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.65;
}

.gift-person__profile {
  font-size: 14px;
  line-height: var(--top-body-leading);
}

.entry-card__cta,
.entry-gift-show__button,
.gift-person__toggle,
.gift-partner__logo {
  transition-duration: var(--top-action-speed);
}

.entry-card:focus-visible,
.entry-gift-show__button:focus-visible,
.gift-person__toggle:focus-visible,
.gift-partner__logo:focus-visible {
  outline: 3px solid var(--top-red);
  outline-offset: 4px;
  box-shadow: none;
}

@media (max-width: 960px) {
  :root {
    --top-section-title-en: 38px;
    --top-section-title-ja: 34px;
    --top-subheading: 18px;
    --top-intro: 17px;
    --top-section-space: clamp(112px, 14vw, 136px);
  }

  .world-challenge__intro,
  .gift-partner__intro,
  .entry-navigation__intro {
    margin-bottom: 76px;
  }

  .world-performer h3,
  .gift-person h4 { font-size: 21px; }
}

@media (max-width: 680px) {
  :root {
    --top-section-title-en: 30px;
    --top-section-title-ja: 27px;
    --top-subheading: 17px;
    --top-intro: 15px;
    --top-body: 15px;
    --top-section-space: 108px;
  }

  .world-challenge,
  .gift-partner,
  .entry-navigation {
    padding-bottom: 120px;
  }

  .world-challenge__intro,
  .gift-partner__intro,
  .entry-navigation__intro {
    margin-bottom: 64px;
  }

  .world-challenge__line,
  .gift-partner__line,
  .entry-navigation__spark {
    margin-bottom: 22px;
  }

  .gift-partner__people-heading,
  .entry-gift-show-intro {
    margin-top: 88px;
    margin-bottom: 40px;
  }

  .world-performer h3,
  .gift-person h4 { font-size: 17px; }
  .gift-person__role { font-size: 12px; }
  .gift-person__profile { font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  .entry-card__cta,
  .entry-gift-show__button,
  .gift-person__toggle,
  .gift-partner__logo {
    transition: none;
  }
}