.page-about {
  color: #ffffff;
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-about__hero-section {
  position: relative;
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(135deg, #017439, #005a2e);
  padding-top: var(--header-offset, 120px);
}

.page-about__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  color: #ffffff;
  line-height: 1.2;
}

.page-about__hero-description {
  font-size: 1.2em;
  margin-bottom: 40px;
  color: #f0f0f0;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__hero-cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background-color: #C30808; /* Đăng ký color */
  color: #FFFF00; /* Đăng ký và đăng nhập font color */
  border: 2px solid #C30808;
}

.page-about__btn-primary:hover {
  background-color: #a00606;
  border-color: #a00606;
}

.page-about__btn-secondary {
  background-color: transparent;
  color: #FFFF00; /* Đăng ký và đăng nhập font color */
  border: 2px solid #FFFF00;
}

.page-about__btn-secondary:hover {
  background-color: #FFFF00;
  color: #C30808;
}

.page-about__section-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 60px;
  color: #ffffff;
}

.page-about__subtitle {
  font-size: 1.8em;
  margin-top: 30px;
  margin-bottom: 15px;
  color: #017439;
}

.page-about__mission-vision-section,
.page-about__commitment-section,
.page-about__future-vision-section,
.page-about__video-section,
.page-about__faq-section {
  padding: 80px 0;
}

.page-about__mission-vision-section .page-about__section-title,
.page-about__commitment-section .page-about__section-title,
.page-about__video-section .page-about__section-title {
  color: #017439;
}

.page-about__mission-vision-section .page-about__subtitle,
.page-about__commitment-section .page-about__subtitle {
  color: #017439;
}

.page-about__content-wrapper {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 40px;
}

.page-about__content-wrapper--reverse {
  flex-direction: row-reverse;
}

.page-about__text-block {
  flex: 1;
  color: #333333;
}

.page-about__image-block {
  flex: 1;
  text-align: center;
}

.page-about__image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  display: block;
  margin: 0 auto;
}

.page-about__value-list {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

.page-about__value-list li {
  background: #f0f0f0;
  padding: 15px 20px;
  margin-bottom: 10px;
  border-left: 5px solid #017439;
  border-radius: 5px;
  color: #333333;
}

.page-about__why-choose-us-section {
  background-color: #121212;
}

.page-about__content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-about__card {
  background: rgba(255, 255, 255, 0.08);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  text-align: center;
  color: #ffffff;
  transition: transform 0.3s ease, background 0.3s ease;
}

.page-about__card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.15);
}

.page-about__card-title {
  font-size: 1.5em;
  margin-bottom: 20px;
  color: #017439;
}

.page-about__card-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-about__dark-bg {
  background-color: #121212;
  color: #ffffff;
}

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

.page-about__light-bg .page-about__section-description {
  color: #666666;
}

.page-about__video-section {
  text-align: center;
  background-color: #ffffff;
}

.page-about__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  max-width: 100%;
  background: #000;
  border-radius: 10px;
  margin: 0 auto;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-about__video-link {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.page-about__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  cursor: pointer;
}

.page-about__faq-section {
  background-color: #121212;
}

.page-about__faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.page-about__faq-item {
  background: rgba(255, 255, 255, 0.08);
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.1em;
  font-weight: bold;
  cursor: pointer;
  color: #ffffff;
  background: #017439;
  border-radius: 8px;
  transition: background 0.3s ease;
}

.page-about__faq-question:hover {
  background: #005a2e;
}

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-about__faq-item.active .page-about__faq-toggle {
  transform: rotate(45deg);
}

.page-about__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: #f0f0f0;
  background: rgba(255, 255, 255, 0.05);
}

.page-about__faq-item.active .page-about__faq-answer {
  max-height: 1000px !important; /* Sufficiently large to show content */
  padding: 20px !important;
}

.page-about__faq-answer p {
  margin: 0;
  color: #f0f0f0;
}

.page-about__section-description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .page-about__hero-section {
    padding: 60px 15px;
    padding-top: var(--header-offset, 120px) !important;
  }

  .page-about__hero-title {
    font-size: 2.2em;
  }

  .page-about__hero-description {
    font-size: 1em;
  }

  .page-about__hero-cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
  }

  .page-about__section-title {
    font-size: 1.8em;
    margin-bottom: 40px;
  }

  .page-about__subtitle {
    font-size: 1.4em;
  }

  .page-about__content-wrapper {
    flex-direction: column;
    gap: 30px;
  }

  .page-about__content-wrapper--reverse {
    flex-direction: column;
  }

  .page-about__text-block,
  .page-about__image-block {
    flex: none;
    width: 100%;
  }

  .page-about__card {
    padding: 20px;
  }

  .page-about__card-title {
    font-size: 1.3em;
  }

  .page-about__section-description {
    font-size: 1em;
  }

  .page-about__video-wrapper {
    margin: 0 15px;
  }

  /* Ensure all images are responsive */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-about__section,
  .page-about__card,
  .page-about__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about video,
  .page-about__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-about__video-section,
  .page-about__video-container,
  .page-about__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  .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;
    flex-direction: column;
  }
}