.page-about {
  font-family: 'Arial', sans-serif;
  color: #333333; /* Dark text on light body background */
  line-height: 1.6;
}

.page-about__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 40px;
  background: #ffffff; /* Auxiliary color as background */
  color: #333333;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
}

.page-about__hero-content {
  padding: 20px 20px 0;
  max-width: 900px;
  margin: 0 auto;
}

.page-about__main-title {
  font-size: clamp(2em, 4vw, 3.2em); /* Responsive font size */
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 15px;
  color: #017439; /* Primary color for H1 */
}

.page-about__description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #555555;
}

.page-about__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-about__btn-primary {
  background-color: #017439; /* Primary color */
  color: #ffffff;
  border: 2px solid #017439;
}

.page-about__btn-primary:hover {
  background-color: #005f2c;
  border-color: #005f2c;
}

.page-about__btn-secondary {
  background-color: #ffffff;
  color: #017439; /* Primary color for text */
  border: 2px solid #017439;
}

.page-about__btn-secondary:hover {
  background-color: #f0f0f0;
  color: #005f2c;
}

.page-about__section {
  padding: 40px 0;
  background: #ffffff;
  color: #333333;
}

.page-about__article-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-about__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.5em);
  font-weight: 700;
  color: #017439;
  margin-bottom: 25px;
  text-align: center;
}

.page-about__text-block {
  font-size: 1em;
  margin-bottom: 20px;
  line-height: 1.7;
  color: #333333;
}

.page-about__text-block strong {
  color: #017439;
}

.page-about__text-block a {
  color: #017439;
  text-decoration: none;
  font-weight: 600;
}

.page-about__text-block a:hover {
  text-decoration: underline;
}

.page-about__figure {
  margin: 30px 0;
  text-align: center;
}

.page-about__image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.page-about__feature-list,
.page-about__commitment-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 20px;
}

.page-about__feature-item,
.page-about__commitment-item {
  position: relative;
  padding-left: 30px;
  margin-bottom: 15px;
  font-size: 1em;
  color: #333333;
}

.page-about__feature-item::before,
.page-about__commitment-item::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #017439;
  font-weight: bold;
  font-size: 1.2em;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .page-about {
    font-size: 16px;
    line-height: 1.6;
  }

  /* 1. Top section title + CTA */
  .page-about__hero-section {
    padding-top: 10px !important; /* Small top padding */
    padding-bottom: 20px;
  }

  .page-about__hero-content {
    padding: 15px;
  }

  .page-about__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
  }

  .page-about__description {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-about__cta-buttons {
    flex-direction: column; /* Stack buttons vertically */
    gap: 10px;
    padding: 0 15px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 15px;
    font-size: 0.95em;
  }

  /* 2. Single-column long text containers */
  .page-about__section {
    padding: 30px 0;
  }

  .page-about__article-wrap {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__section-title {
    font-size: clamp(1.5em, 6vw, 2em);
    margin-bottom: 20px;
  }

  .page-about__text-block {
    font-size: 0.95em;
  }

  /* 3. General images and figures */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    border-radius: 5px;
  }

  .page-about__figure {
    margin: 20px 0;
  }

  .page-about__figcaption {
    font-size: 0.85em;
  }

  /* 4. Buttons and button containers (already covered in top section, but ensuring general rules) */
  .page-about__cta-button,
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about a[class*="button"],
  .page-about 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-about__cta-buttons,
  .page-about__button-group,
  .page-about__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;
  }
  
  .page-about__cta-buttons {
    flex-direction: column;
  }

  /* 5. Registration tutorial and FAQ blocks - N/A for this page, but structure for general application */
  /* (No explicit FAQ or registration tutorial blocks in this 'Về chúng tôi' page requiring specific mobile adjustments beyond general text/image rules) */
  /* Example if they existed: */
  /* .page-about__faq-item, .page-about__tutorial-step { padding: 15px; margin-bottom: 10px; } */
  /* .page-about__faq-question h3 { font-size: 1.1em; } */
}

/* Contrast Fixes - If necessary (Body background is white, so dark text is appropriate) */
.page-about__dark-bg {
  background: #017439;
  color: #ffffff;
}

.page-about__light-bg {
  background: #ffffff;
  color: #333333;
}