/* ============================================================
   Responsive
   ------------------------------------------------------------
   ブレークポイント: 1200 / 1024 / 768 / 480px
   ============================================================ */

@media (max-width: 1200px) {
  .site-header {
    padding: 10px 40px;
  }

  .fv-inner {
    padding: 0 40px;
    justify-content: center;
    align-items: flex-start;
    flex-direction: column;
    gap: 24px;
    max-width: 640px;
  }

  .hero-visual {
    width: 180%;
    max-width: none;
    margin-left: -49%;
    margin-right: -31%;
    margin-top: -14px;
    flex: none;
    align-self: center;
    order: 3;
  }

  .hv-bubble {
    display: none;
  }

  .hero-content {
    display: contents;
    text-align: left;
  }

  .hero-badge { order: 1; }
  .hero-heading { order: 2; }
  .hero-desc { order: 4; align-self: stretch; text-align: center; }
  .hero-buttons { order: 5; align-self: stretch; }

  .heading-break-1 {
    display: none;
  }

  .hero-buttons {
    justify-content: center;
  }
}

@media (max-width: 1024px) {
  .site-header {
    padding: 14px 24px;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(320px, 80vw);
    background: var(--color-primary-dark);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 32px;
    padding: 100px 32px 32px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 150;
  }

  .main-nav.is-open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .nav-buttons {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 12px;
  }

  .nav-buttons .btn {
    width: 100%;
  }

  .hamburger {
    display: flex;
  }

  .giveup-cards,
  .features-cards,
  .voice-cards,
  .pricing-cards {
    gap: 32px;
  }

  .whatis-grid {
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 12px 20px;
  }

  .fv {
    padding: 24px 0 60px;
  }

  .fv-inner {
    padding: 0 20px;
  }

  .giveup .section-head {
    align-items: flex-start;
    text-align: left;
  }

  .giveup .section-head h2 {
    font-size: 1.5rem;
  }

  .giveup-heading-break {
    display: none;
  }

  section,
  .giveup,
  .whatis,
  .features,
  .voice,
  .pricing,
  .flow,
  .faq,
  .final-cta {
    padding-left: 20px;
    padding-right: 20px;
  }

  .whatis-panel {
    padding: 32px 20px;
  }

  .section-head h2,
  .whatis-heading {
    font-size: 1.9rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-btn {
    width: 100%;
    max-width: 320px;
  }

  .flow-steps {
    flex-direction: column;
    align-items: center;
    gap: 40px;
  }

  .final-cta-image {
    display: block;
    width: 280px;
  }

  .final-cta-inner h2 {
    font-size: 1.6rem;
  }

  .final-cta-inner p {
    font-size: 0.78rem;
  }

  .cta-button {
    flex-wrap: wrap;
    justify-content: center;
    padding: 16px 24px;
  }

  .cta-button span {
    font-size: 1.1rem;
  }

  .site-footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 32px 20px;
    gap: 20px;
  }

  .footer-logo-crop {
    width: 280px;
    height: 73.4px;
  }

  .footer-links {
    flex-wrap: nowrap;
    justify-content: center;
    gap: 12px;
  }

  .footer-links a {
    font-size: 0.7rem;
    white-space: nowrap;
  }

  .footer-copy {
    font-size: 0.65rem;
  }
}

@media (max-width: 480px) {
  .section-head h2,
  .whatis-heading {
    font-size: 1.5rem;
  }

  .pricing .section-head h2 {
    font-size: 1.5rem;
  }

  .feature-num {
    font-size: 2.5rem;
  }

  .pricing-price .amount {
    font-size: 2.5rem;
  }

  .faq h2 {
    font-size: 1.5rem;
  }

  .pricing .section-head .eyebrow-accent {
    font-size: 0.9rem;
    white-space: nowrap;
  }

  .pricing-tagline {
    font-size: 0.9rem;
    white-space: nowrap;
  }

  .giveup-card,
  .feature-card,
  .voice-card,
  .pricing-card {
    width: 100%;
    max-width: 320px;
  }

  .feature-card {
    padding: 40px 20px;
  }

  .voice-card h3 {
    font-size: 1rem;
  }

  .flow-step {
    width: 100%;
    max-width: 260px;
  }

  .hero-badge {
    font-size: 0.8rem;
  }

  .hero-heading {
    font-size: 1.5rem;
  }
}