.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light body background */
  background-color: #FFFFFF; /* Default body background */
}

.page-index__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-index__section {
  padding: 30px 0;
  margin-bottom: 20px;
  background-color: #FFFFFF;
  box-sizing: border-box;
}

.page-index__top-section {
  padding-top: 10px; /* Small top padding, not --header-offset */
  text-align: center;
  background-color: #f8f8f8;
  margin-bottom: 0;
}

.page-index__page-title {
  font-size: clamp(2em, 4vw, 2.8em);
  color: #26A9E0;
  margin-bottom: 15px;
  font-weight: bold;
  line-height: 1.2;
}

.page-index__intro-text {
  font-size: 1.1em;
  color: #555555;
  max-width: 800px;
  margin: 0 auto 25px auto;
  line-height: 1.5;
}

.page-index__top-cta {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.page-index__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 25px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  min-height: 44px; /* WCAG touch target */
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-index__btn--primary {
  background-color: #0066ff;
  color: #ffffff;
  border: 2px solid #0066ff;
}

.page-index__btn--primary:hover {
  background-color: #0056e6;
  border-color: #0056e6;
  transform: translateY(-2px);
}

.page-index__btn--promo {
  background-color: #d62828;
  color: #ffffff;
  border: 2px solid #d62828;
  font-size: 1.2em;
  padding: 15px 30px;
}

.page-index__btn--promo:hover {
  background-color: #c02020;
  border-color: #c02020;
  transform: translateY(-2px);
}

.page-index__section-title {
  font-size: 2em;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 25px;
  font-weight: bold;
}

.page-index__section-title--notification {
  color: #d62828;
  font-size: 1.8em;
  margin-bottom: 20px;
}

.page-index p {
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__emphasis-text {
  font-style: italic;
  color: #d62828;
  text-align: center;
  font-weight: bold;
}

.page-index__link--emphasis {
  color: #0066ff;
  text-decoration: underline;
}

.page-index__feature-list, .page-index__fact-list, .page-index__promo-list, .page-index__registration-info-list, .page-index__contact-info-list, .page-index__identification-list {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 15px;
  padding: 0;
}

.page-index__feature-list li, .page-index__fact-list li, .page-index__promo-list li, .page-index__registration-info-list li, .page-index__contact-info-list li, .page-index__identification-list li {
  margin-bottom: 8px;
}

.page-index__info-card {
  background-color: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  margin-top: 30px;
  margin-bottom: 20px;
  box-sizing: border-box;
}

.page-index__info-card p strong {
  color: #26A9E0;
}

.page-index__warning-card {
  background-color: #fff4f4;
  border-left: 5px solid #ff4141;
  border-radius: 4px;
  padding: 15px 20px;
  margin-bottom: 20px;
  color: #d62828;
  font-weight: bold;
  box-sizing: border-box;
}

.page-index__seo-content-section h2 {
  font-size: 1.8em;
  color: #26A9E0;
  margin-top: 35px;
  margin-bottom: 20px;
  font-weight: bold;
  text-align: left;
}

.page-index__seo-content-section h3 {
  font-size: 1.4em;
  color: #26A9E0;
  margin-top: 25px;
  margin-bottom: 15px;
  font-weight: bold;
  text-align: left;
}

.page-index__wp-caption {
  margin: 25px auto;
  text-align: center;
  max-width: 680px;
  box-sizing: border-box;
}

.page-index__figure img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.page-index__figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: #777777;
  margin-top: 10px;
}

.page-index__blockquote {
  border-left: 5px solid #26A9E0;
  padding: 15px 20px;
  margin: 30px 0;
  background-color: #f0f8ff;
  font-style: italic;
  color: #555555;
}

.page-index__blockquote cite {
  display: block;
  text-align: right;
  margin-top: 10px;
  font-style: normal;
  font-weight: bold;
  color: #26A9E0;
}

.page-index__promo-box {
  background-color: #fffbe6;
  border: 2px dashed #111;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  margin: 40px auto;
  max-width: 900px;
  box-sizing: border-box;
}

.page-index__promo-box-title {
  font-size: 2em;
  color: #d62828;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-index__promo-box p {
  font-size: 1.1em;
  margin-bottom: 20px;
  text-align: center;
}

.page-index__registration-tutorial-section h2 {
  font-size: 2em;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-index__registration-tutorial-section h3 {
  font-size: 1.6em;
  color: #26A9E0;
  margin-top: 30px;
  margin-bottom: 15px;
  font-weight: bold;
  text-align: left;
}

.page-index__faq-question-title {
  font-size: 1.4em;
  color: #26A9E0;
  margin-top: 25px;
  margin-bottom: 10px;
  font-weight: bold;
  text-align: left;
}

.page-index__faq-answer-text {
  margin-bottom: 15px;
  text-align: justify;
}

.page-index__closing-text {
  margin-top: 30px;
  font-size: 1.1em;
  color: #555555;
  text-align: justify;
}

.page-index__contact-info-list {
  list-style: none;
  margin-left: 0;
  padding-left: 0;
  margin-top: 20px;
  font-size: 1.05em;
}

.page-index__contact-info-list li {
  margin-bottom: 8px;
  color: #333333;
}

.page-index__contact-info-list li strong {
  color: #26A9E0;
}

/* General image responsiveness */
.page-index img {
  max-width: 100%;
  height: auto;
  display: block;
  box-sizing: border-box;
}

/* Mobile responsiveness */
@media (max-width: 1024px) {
  .page-index__article-wrap {
    padding: 0 15px;
  }
  .page-index__page-title {
    font-size: clamp(1.8em, 5vw, 2.5em);
  }
  .page-index__section-title {
    font-size: 1.8em;
  }
  .page-index__seo-content-section h2 {
    font-size: 1.6em;
  }
  .page-index__seo-content-section h3 {
    font-size: 1.3em;
  }
  .page-index__promo-box-title {
    font-size: 1.8em;
  }
  .page-index__registration-tutorial-section h2 {
    font-size: 1.8em;
  }
  .page-index__registration-tutorial-section h3 {
    font-size: 1.4em;
  }
  .page-index__faq-question-title {
    font-size: 1.3em;
  }
}

@media (max-width: 768px) {
  /* 1. Top Section (H1 + Dual CTA) */
  .page-index__top-section {
    padding-top: 10px !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-index__page-title {
    font-size: clamp(1.6em, 6vw, 2.2em);
    margin-bottom: 10px;
  }
  .page-index__intro-text {
    font-size: 1em;
    margin-bottom: 20px;
    text-align: left;
  }
  .page-index__top-cta {
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
  }
  .page-index__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px;
    font-size: 1em;
  }

  /* 2. Single Column Long Content Containers */
  .page-index__article-wrap,
  .page-index__section,
  .page-index__info-card,
  .page-index__warning-card,
  .page-index__promo-box {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-index__section {
    padding: 20px 0;
  }
  .page-index p {
    text-align: left;
  }
  .page-index__section-title {
    font-size: 1.6em;
    margin-bottom: 15px;
  }
  .page-index__section-title--notification {
    font-size: 1.5em;
  }
  .page-index__info-card, .page-index__warning-card, .page-index__promo-box {
    padding: 15px;
  }

  /* 3. General Images and Figures */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-index__wp-caption {
    margin: 20px auto;
  }
  .page-index__figcaption {
    font-size: 0.85em;
  }
  .page-index__seo-content-section h2 {
    font-size: 1.5em;
    margin-top: 25px;
    margin-bottom: 15px;
  }
  .page-index__seo-content-section h3 {
    font-size: 1.2em;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  /* 4. Buttons and Button Containers */
  .page-index__btn, .page-index a[class*="button"], .page-index a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-index__top-cta, .page-index__button-group, .page-index__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
    flex-direction: column; /* Ensure vertical stacking for multiple buttons */
  }

  /* 5. Registration Tutorial and FAQ Blocks */
  .page-index__registration-tutorial-section h2 {
    font-size: 1.6em;
    margin-bottom: 15px;
  }
  .page-index__registration-tutorial-section h3 {
    font-size: 1.3em;
    margin-top: 25px;
    margin-bottom: 10px;
  }
  .page-index__faq-question-title {
    font-size: 1.3em;
    margin-top: 20px;
    margin-bottom: 8px;
  }
  .page-index__faq-answer-text {
    font-size: 0.95em;
  }
  .page-index__contact-info-list {
    font-size: 0.95em;
  }
  .page-index__promo-box-title {
    font-size: 1.6em;
  }
}