/* =====================================================
   v02 統合LP style.css (デザインガイドライン適用版)
   ===================================================== */
:root {
  --color-primary: #1D9585;
  --color-accent-menstrual: #1D9585;
  --color-accent-menopause: #1D9585;
  --color-bg: #FDFAF8;
  --color-bg-section: #F3EDE7;
  --color-text: #2C2C2C;
  --color-text-sub: #6A6A6A;
  --color-border: #E0D8D2;
  --color-cta: #1D9585;
  --color-concept-bg: #1A2E2B;

  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --font-latin: 'Lato', sans-serif;

  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.9;
  font-size: 16px;
  letter-spacing: 0.03em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}


/* ── Utilities ── */
.container { max-width: 1400px; margin: 0 auto; padding: 0 clamp(1.5rem, 5vw, 5rem); }
.container--narrow { max-width: 960px; }
section { padding: clamp(80px, 14vw, 160px) 0; }

/* ── Image Placeholders ── */
.image-placeholder {
  width: 100%; background-color: var(--color-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-sub); font-weight: 600; font-size: 14px; text-align: center;
  position: relative; overflow: hidden; border-radius: 24px;
}
.image-placeholder::before { content: ""; display: block; padding-top: 60%; }
.image-placeholder span { position: absolute; padding: 1rem; line-height: 1.5; }
.image-placeholder--hero {
  border-radius: 32px 32px 120px 32px;
  box-shadow: 0 24px 48px rgba(29, 149, 133, 0.15);
  background: linear-gradient(135deg, #E8F4F2, #D1EBE7);
}
.image-placeholder--hero::before { padding-top: 100%; }
.image-placeholder--hero span { color: var(--color-primary); font-size: 16px; }

/* ── Animations ── */
[data-animate] {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}
[data-animate].is-visible { opacity: 1; transform: translateY(0); }
[data-animate-delay="1"] { transition-delay: 0.15s; }
[data-animate-delay="2"] { transition-delay: 0.3s; }
[data-animate-delay="3"] { transition-delay: 0.45s; }

/* ── Typography ── */
.overline {
  font-family: var(--font-latin); font-size: 11px; font-weight: 700;
  letter-spacing: 0.25em; text-transform: uppercase; color: var(--color-primary);
  margin-bottom: 1.5rem; display: block;
}
.section-title {
  font-family: var(--font-serif); font-size: clamp(24px, 4vw, 36px);
  font-weight: 700; line-height: 1.4; color: var(--color-text); letter-spacing: 0.06em;
}
.section-lead {
  font-size: 18px; color: var(--color-text-sub); line-height: 2; margin-top: 1.5rem; font-weight: 400;
  max-width: 44em;
}

/* ── Header ── */
.site-header {
  position: sticky; top: 0; z-index: 100; height: var(--header-h);
  background: rgba(253,250,248,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border); transition: box-shadow 0.4s;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.03); }
.header__inner {
  max-width: 1400px; margin: 0 auto; padding: 0 clamp(1.5rem, 5vw, 5rem);
  height: 100%; display: flex; align-items: center; gap: 2.5rem;
}
.header__logo { display: flex; flex-direction: column; gap: 0.15rem; }
.header__logo-text { font-family: var(--font-serif); font-size: 16px; font-weight: 700; line-height: 1.2; letter-spacing: 0.06em; }
.header__logo-badge { font-family: var(--font-sans); font-size: 11px; font-weight: 700; letter-spacing: 0.05em; color: var(--color-primary); }
.header__nav { display: flex; align-items: center; gap: 2.5rem; margin-left: auto; }
.header__nav-link { font-size: 14px; font-weight: 600; color: var(--color-text-sub); transition: color 0.3s; }
.header__nav-link:hover { color: var(--color-primary); }
.header__menu-btn {
  display: none; flex-direction: column; justify-content: center; gap: 6px;
  width: 40px; height: 40px; background: none; border: none; cursor: pointer;
}
.header__menu-btn span { display: block; height: 1.5px; background: var(--color-text); transition: transform 0.4s, opacity 0.4s; }
.header__menu-btn.is-active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.header__menu-btn.is-active span:nth-child(2) { opacity: 0; }
.header__menu-btn.is-active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

.header__drawer {
  position: fixed; top: var(--header-h); right: 0; bottom: 0; width: min(300px, 80vw);
  background: var(--color-bg); border-left: 1px solid var(--color-border);
  transform: translateX(100%); transition: transform 0.4s ease; z-index: 99;
}
.header__drawer.is-open { transform: translateX(0); }
.drawer__nav { display: flex; flex-direction: column; padding: 2rem; gap: 1.5rem; }
.drawer__link { font-size: 16px; font-weight: 600; color: var(--color-text); }

@media (min-width: 901px) {
  .header__drawer, .header__menu-btn { display: none !important; }
}

/* ── Buttons ── */
.btn-group { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 1.1rem 3rem; background: var(--color-cta); color: #fff;
  font-size: 16px; font-weight: 700; border-radius: 9999px; border: none;
  transition: background 0.3s, transform 0.2s; letter-spacing: 0.05em; cursor: pointer;
}
.btn-primary:hover { background: #157A6D; transform: translateY(-2px); }
.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 1rem 2.5rem; background: transparent; color: var(--color-primary);
  font-size: 16px; font-weight: 600; border-radius: 9999px; border: 2px solid var(--color-primary);
  transition: background 0.3s, color 0.3s; cursor: pointer;
}
.btn-secondary:hover { background: var(--color-primary); color: #fff; }

/* ── S1. Hero ── */
.hero {
  min-height: calc(100svh - var(--header-h));
  display: flex; align-items: center;
  padding: clamp(4rem, 10vw, 8rem) 0;
  background: var(--color-bg); overflow: hidden;
}
.hero__wrapper {
  display: grid; grid-template-columns: 1fr; gap: 3rem; align-items: center;
}
@media (min-width: 901px) {
  .hero__wrapper { grid-template-columns: 1.1fr 0.9fr; gap: 5rem; }
}
.hero__content { max-width: 720px; }
.hero__badge {
  display: inline-flex; align-items: center; padding: 0.4rem 1.25rem;
  background: rgba(29, 149, 133, 0.08); border: 1px solid rgba(29, 149, 133, 0.25); color: var(--color-primary);
  border-radius: 9999px; font-size: 13px; font-weight: 700; letter-spacing: 0.1em; margin-bottom: 2rem;
}
.hero__title {
  font-family: var(--font-serif); font-size: clamp(26px, 4.2vw, 42px);
  font-weight: 700; line-height: 1.4; letter-spacing: 0.06em; margin-bottom: 1.5rem;
}
.hero__title em { font-style: normal; color: var(--color-primary); display: block; margin-top: 0.3rem; }
.hero__image {
  aspect-ratio: 1 / 1; border-radius: 32px 32px 120px 32px;
  box-shadow: 0 24px 48px rgba(29, 149, 133, 0.12); overflow: hidden;
}
.hero__img {
  width: 100%; height: 100%; object-fit: cover;
}
.hero__sub {
  font-size: 17px; color: var(--color-text-sub); line-height: 2.2; margin-bottom: 3rem;
  max-width: 38em; letter-spacing: 0.04em;
}

/* ── S2. Concept ── */
.concept {
  background: var(--color-concept-bg); color: #fff;
  padding: clamp(96px, 16vw, 180px) 0; text-align: center;
}
.concept__eyebrow {
  font-family: var(--font-latin); font-size: 11px; font-weight: 700;
  letter-spacing: 0.4em; text-transform: uppercase; color: rgba(255,255,255,0.5);
  margin-bottom: 2.5rem; display: block;
}
.concept__title {
  font-family: var(--font-serif); font-size: clamp(26px, 4.5vw, 44px);
  font-weight: 700; line-height: 1.4; letter-spacing: 0.1em; margin-bottom: 2.5rem;
}
.concept__subtitle {
  font-family: var(--font-sans); font-size: clamp(16px, 2.5vw, 20px);
  color: rgba(255,255,255,0.6); letter-spacing: 0.06em; margin-bottom: 2rem;
}
.concept__lead {
  font-size: 17px; color: rgba(255,255,255,0.8); line-height: 2.4;
  max-width: 38em; margin: 0 auto; letter-spacing: 0.04em;
}
.concept__tags {
  display: flex; justify-content: center; gap: 1rem; margin-top: 3.5rem; flex-wrap: wrap;
}
.concept__tag {
  padding: 0.4rem 1.25rem; border: 1px solid rgba(255,255,255,0.2);
  border-radius: 9999px; font-size: 13px; color: rgba(255,255,255,0.6); letter-spacing: 0.05em;
}

/* ── S3. Targets ── */
.targets { background: var(--color-bg); }
.targets__grid {
  display: grid; grid-template-columns: 1fr;
  gap: clamp(5rem, 10vw, 8rem); max-width: 1100px; margin: 0 auto;
}
.target-block { display: flex; flex-direction: column; }
.target-block__header {
  display: flex; flex-direction: column; gap: 1.5rem;
  margin-bottom: clamp(2rem, 4vw, 3rem); align-items: center; text-align: center;
}
.target-block__intro { margin-bottom: 0; display: flex; flex-direction: column; align-items: center; }
.target-block__label {
  font-family: var(--font-serif); font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 700; line-height: 1.4; letter-spacing: 0.06em;
  display: inline-block; margin-bottom: 1.25rem;
  position: relative; padding-bottom: 0.5rem; color: var(--color-text);
}
.target-block--menstrual .target-block__label::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--color-accent-menstrual); border-radius: 3px;
}
.target-block--menopause .target-block__label::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--color-accent-menopause); border-radius: 3px;
}
.target-block__desc { font-size: 16px; color: var(--color-text-sub); line-height: 1.9; max-width: 600px; }

.target-block__voices { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 901px) {
  .target-block__voices { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
}

.voice-card {
  position: relative; border-radius: 20px; padding: 2.5rem 2rem 2rem;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid transparent;
}
.voice-card::before {
  content: "\201C"; font-family: var(--font-serif);
  position: absolute; top: -1.2rem; left: 1.5rem;
  font-size: 4rem; line-height: 1; z-index: 1;
}
.voice-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.04); }
.target-block--menstrual .voice-card { background: rgba(29, 149, 133, 0.05); border-color: rgba(29, 149, 133, 0.15); }
.target-block--menstrual .voice-card::before { color: var(--color-accent-menstrual); opacity: 0.3; }
.target-block--menopause .voice-card { background: rgba(29, 149, 133, 0.05); border-color: rgba(29, 149, 133, 0.15); }
.target-block--menopause .voice-card::before { color: var(--color-accent-menopause); opacity: 0.3; }

.voice-card__text {
  font-family: var(--font-serif); font-size: 15px; line-height: 1.85;
  color: var(--color-text); font-weight: 700;
}
.voice-card__attr {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-sans); font-size: 12px; font-weight: 600;
  margin-top: 1.25rem; letter-spacing: 0.05em;
}
.voice-card__attr::before { content: ""; display: block; width: 1.5rem; height: 1px; }
.target-block--menstrual .voice-card__attr { color: var(--color-accent-menstrual); }
.target-block--menstrual .voice-card__attr::before { background-color: var(--color-accent-menstrual); }
.target-block--menopause .voice-card__attr { color: var(--color-accent-menopause); }
.target-block--menopause .voice-card__attr::before { background-color: var(--color-accent-menopause); }
.target-block__note { font-size: 12px; color: var(--color-text-sub); font-style: italic; margin-top: 1.5rem; text-align: center; }

/* ── S4. About ── */
.about { background: var(--color-bg); }
.about__header { text-align: center; margin-bottom: clamp(4rem, 8vw, 6rem); }
.about__header .section-lead { margin-left: auto; margin-right: auto; text-align: center; }

.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 4vw, 3rem); }
.feature-card { position: relative; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.feature-card__num {
  font-family: var(--font-latin); font-size: 3rem; font-weight: 300;
  color: var(--color-primary); line-height: 1; margin-bottom: 1.5rem; opacity: 0.6;
}
.feature-card__title {
  font-family: var(--font-serif); font-size: 22px; font-weight: 700;
  color: var(--color-text); margin-bottom: 1rem; line-height: 1.4; letter-spacing: 0.04em;
}
.feature-card__desc { font-size: 16px; color: var(--color-text-sub); line-height: 1.9; }

/* ── Statement Break ── */
.statement-break {
  background: radial-gradient(circle at center, #23403b 0%, var(--color-concept-bg) 100%);
  color: #fff; padding: clamp(80px, 14vw, 140px) 0; text-align: center;
}
.statement-break__quote {
  font-family: var(--font-serif); font-size: clamp(22px, 3.5vw, 38px);
  font-weight: 700; line-height: 1.6; letter-spacing: 0.08em;
  border: none; margin: 0; padding: 0;
}
.statement-break__quote p { color: rgba(255,255,255,0.9); }

/* ── S5. Why Research ── */
.why-research { background: var(--color-bg-section); }
.why-grid { display: grid; grid-template-columns: 4fr 7fr; gap: clamp(3rem, 6vw, 6rem); align-items: start; }
.why-research__badge {
  display: inline-block; padding: 0.4rem 1.25rem;
  background: rgba(29, 149, 133, 0.1); color: var(--color-primary);
  border-radius: 9999px; font-size: 13px; font-weight: 700; letter-spacing: 0.08em; margin-bottom: 1.5rem;
}
.qa-list { display: flex; flex-direction: column; border-top: 1px solid var(--color-border); }
.qa-item { padding: 2.5rem 0; border-bottom: 1px solid var(--color-border); }
.qa-item__q {
  font-family: var(--font-serif); font-size: 18px; font-weight: 700;
  color: var(--color-text); margin-bottom: 1.5rem; display: flex; gap: 1rem; line-height: 1.5;
}
.qa-item__q::before {
  content: 'Q.'; font-family: var(--font-latin); font-size: 22px;
  color: var(--color-primary); font-weight: 700; flex-shrink: 0;
}
.qa-item__a { font-size: 15px; color: var(--color-text-sub); line-height: 2; padding-left: 2.5rem; }
.qa-item__a strong { color: var(--color-text); font-weight: 600; }

/* ── S6. Operators ── */
.operators { background: var(--color-bg); }
.operators__header { text-align: center; margin-bottom: clamp(3rem, 8vw, 4rem); }
.operators__header .section-lead { margin-left: auto; margin-right: auto; text-align: center; }
.operator-card {
  background: transparent; border: 1px solid var(--color-border); border-radius: 0; padding: 4rem 3rem;
  text-align: center; max-width: 720px; margin: 0 auto;
}
.operator-card__role {
  font-family: var(--font-latin); font-size: 12px; font-weight: 700;
  letter-spacing: 0.25em; text-transform: uppercase; color: var(--color-primary); margin-bottom: 1.5rem;
}
.operator-card__name {
  font-family: var(--font-serif); font-size: 24px; font-weight: 700;
  color: var(--color-text); margin-bottom: 1.5rem; letter-spacing: 0.05em;
}
.operator-card__desc { font-size: 16px; color: var(--color-text-sub); line-height: 2; }
.operator-card__btn { margin-top: 2rem; }
.operators__note {
  text-align: center; margin-top: 2rem; max-width: 720px; margin-left: auto; margin-right: auto;
  font-size: 13px; color: var(--color-text-sub); line-height: 1.9;
}

/* ── S7. Join ── */
.join { background: var(--color-bg-section); }
.join__header { text-align: center; margin-bottom: clamp(4rem, 8vw, 6rem); }
.step-list { max-width: 840px; margin: 0 auto; display: flex; flex-direction: column; gap: 3.5rem; }
.step { display: flex; align-items: flex-start; gap: 2.5rem; text-align: left; }
.step__num {
  font-family: var(--font-latin); font-size: 4rem; color: var(--color-primary);
  font-weight: 300; line-height: 0.8; flex-shrink: 0; opacity: 0.5;
}
.step__title {
  font-family: var(--font-serif); font-size: 20px; font-weight: 700;
  color: var(--color-text); margin-bottom: 1rem;
}
.step__desc { font-size: 16px; color: var(--color-text-sub); line-height: 1.9; }

/* ── S8. CTA ── */
.cta-section { background: var(--color-bg-section); padding: clamp(60px, 10vw, 120px) 0; }
.cta-card {
  background: var(--color-primary); border-radius: 32px; padding: clamp(5rem, 10vw, 8rem) 2rem;
  text-align: center; color: #fff;
  box-shadow: 0 24px 48px rgba(29, 149, 133, 0.2); max-width: 1400px; margin: 0 auto;
}
.cta-card__content { max-width: 840px; margin: 0 auto; }
.cta-card__title {
  font-family: var(--font-serif); font-size: clamp(26px, 4vw, 42px);
  font-weight: 700; line-height: 1.4; margin-bottom: 1.5rem; letter-spacing: 0.08em;
}
.cta-card__sub {
  font-size: 17px; color: rgba(255,255,255,0.85); line-height: 2;
  margin-bottom: 3.5rem; letter-spacing: 0.04em;
}
.cta-card__btn { background: #fff; color: var(--color-primary); border: none; box-shadow: 0 12px 32px rgba(0,0,0,0.2); }
.cta-card__btn:hover { background: var(--color-bg-section); transform: translateY(-3px); }
.cta-card__note { margin-top: 1.5rem; font-size: 14px; color: rgba(255,255,255,0.7); letter-spacing: 0.05em; }

/* ── S9. FAQ ── */
.faq { background: var(--color-bg); }
.faq__header { text-align: center; margin-bottom: clamp(3rem, 8vw, 4rem); }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item:first-child { border-top: 1px solid var(--color-border); }
.faq-item__btn {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem;
  padding: 2rem 0; background: none; border: none; cursor: pointer; text-align: left;
  font-family: var(--font-sans); font-size: 18px; font-weight: 600; color: var(--color-text); line-height: 1.6;
  transition: color 0.3s;
}
.faq-item__btn:hover { color: var(--color-primary); }
.faq-item__icon {
  flex-shrink: 0; width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 300; transition: transform 0.3s; color: var(--color-primary);
}
.faq-item.is-open .faq-item__icon { transform: rotate(45deg); }
.faq-item__answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; opacity: 0; }
.faq-item.is-open .faq-item__answer { max-height: 500px; padding-bottom: 2rem; opacity: 1; }
.faq-item__answer p { font-size: 16px; color: var(--color-text-sub); line-height: 1.9; }

/* ── Footer ── */
.footer { background: #2C2C2C; color: rgba(255,255,255,0.7); padding: 4rem 1.5rem 3rem; text-align: center; }
.footer__inner { max-width: 1400px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.footer__brand { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: #fff; letter-spacing: 0.05em; }
.footer__tagline { font-size: 14px; }
.footer__orgs { font-size: 14px; line-height: 2; }
.footer__copy { font-size: 13px; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 2rem; width: 100%; margin-top: 1rem; }

/* ── Fixed CTA Bar ── */
.cta-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 999;
  background: rgba(253, 250, 248, 0.95); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08); padding: 1.1rem 2rem;
  transform: translateY(100%); transition: transform 0.4s ease;
  display: flex; justify-content: center;
}
.cta-bar.show { transform: translateY(0); }
.cta-bar .btn-primary { width: 100%; max-width: 400px; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .header__nav { display: none; }
  .header__menu-btn { display: flex; }

  .hero__content { max-width: 100%; }
  .hero__cta-group { flex-direction: column; width: 100%; }
  .hero__cta-group .btn-primary, .hero__cta-group .btn-secondary { width: 100%; }

  .features-grid { grid-template-columns: 1fr; gap: 3rem; }

  .why-grid { grid-template-columns: 1fr; gap: 2rem; }

  .step { flex-direction: column; gap: 1rem; align-items: center; text-align: center; }
}