/* style/about.css */
/* body đã padding-top: var(--header-offset) bởi shared.css; trang này không cần lặp lại */

:root {
  --page-about-primary-color: #26A9E0;
  --page-about-secondary-color: #FFFFFF;
  --page-about-text-dark: #333333;
  --page-about-text-light: #FFFFFF;
  --page-about-login-color: #EA7C07;
  --page-about-background-color: #FFFFFF;
  --page-about-black: #000000;
}

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--page-about-text-dark); /* Default text color for light background */
  background-color: var(--page-about-background-color);
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px; /* Adjusted padding for better visual spacing */
  padding-top: 10px; /* Small top padding, body handles header offset */
  text-align: center;
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 1920px;
  margin-bottom: 30px;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-about__hero-content {
  max-width: 900px;
  margin: 0 auto;
  z-index: 1;
}

.page-about__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--page-about-black);
  margin-bottom: 15px;
  font-size: clamp(2.2rem, 4vw, 3.5rem); /* Using clamp for responsive H1 font-size */
}

.page-about__description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: var(--page-about-text-dark);
}

.page-about__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  box-sizing: border-box;
  text-align: center;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow word breaking */
}

.page-about__btn-primary {
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
  border: 2px solid var(--page-about-primary-color);
}

.page-about__btn-primary:hover {
  background-color: darken(var(--page-about-primary-color), 10%);
  border-color: darken(var(--page-about-primary-color), 10%);
}

.page-about__btn-secondary {
  background-color: var(--page-about-secondary-color);
  color: var(--page-about-primary-color);
  border: 2px solid var(--page-about-primary-color);
}

.page-about__btn-secondary:hover {
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
}

/* General Section Styling */
.page-about__section {
  padding: 60px 0;
}

.page-about__section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--page-about-black);
  text-align: center;
  margin-bottom: 40px;
}

.page-about__text-block {
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 900px;
  margin: 0 auto 30px auto;
  text-align: justify;
  color: var(--page-about-text-dark);
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* Grid Layouts */
.page-about__grid-item {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

/* Card Styling */
.page-about__card {
  background-color: var(--page-about-secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  color: var(--page-about-text-dark);
}

.page-about__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--page-about-primary-color);
  margin-bottom: 15px;
}

.page-about__card-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--page-about-text-dark);
}

.page-about__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-about__list li {
  margin-bottom: 10px;
  font-size: 1rem;
  color: var(--page-about-text-dark);
}

.page-about__list li strong {
  color: var(--page-about-primary-color);
}

/* Dark Section Specifics */
.page-about__dark-section {
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
}

.page-about__dark-section .page-about__section-title,
.page-about__dark-section .page-about__text-block {
  color: var(--page-about-text-light);
}

.page-about__dark-section .page-about__feature-title {
  color: var(--page-about-text-light);
}

.page-about__dark-section .page-about__btn-link {
  color: var(--page-about-secondary-color);
}

/* Features Grid */
.page-about__grid-item--features {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.page-about__feature-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 25px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  height: 100%;
  box-sizing: border-box;
}

.page-about__dark-section .page-about__feature-card {
    background-color: rgba(255, 255, 255, 0.15);
}

.page-about__feature-icon {
  width: 200px;
  height: 200px;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 50%; /* Make icons round for visual appeal */
  background-color: rgba(255, 255, 255, 0.2);
}

.page-about__feature-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--page-about-text-light);
}

.page-about__feature-text {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--page-about-text-light);
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-about__btn-link {
  color: var(--page-about-secondary-color);
  text-decoration: underline;
  font-weight: 500;
  margin-top: 5px;
  transition: color 0.3s ease;
}

.page-about__btn-link:hover {
  color: darken(var(--page-about-secondary-color), 10%);
}

/* Team Section */
.page-about__grid-item--team {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.page-about__team-member-card {
  background-color: var(--page-about-secondary-color);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  color: var(--page-about-text-dark);
}

.page-about__team-member-photo {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 3px solid var(--page-about-primary-color);
}

.page-about__team-member-name {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--page-about-primary-color);
  margin-bottom: 5px;
}

.page-about__team-member-role {
  font-size: 1rem;
  color: var(--page-about-text-dark);
}

.page-about__text-block--culture {
    margin-top: 40px;
    font-style: italic;
}

/* FAQ Section */
.page-about__faq-list {
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid #eee;
}

.page-about__faq-item {
  border-bottom: 1px solid #eee;
  padding: 15px 0;
  color: var(--page-about-text-dark);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--page-about-black);
}

.page-about__faq-question:hover {
  color: var(--page-about-primary-color);
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 10px;
}

.page-about__faq-answer {
  font-size: 1rem;
  line-height: 1.6;
  padding-top: 10px;
  color: var(--page-about-text-dark);
}

.page-about__faq-answer p {
    margin-bottom: 10px;
}

.page-about__faq-answer .page-about__btn-link {
    display: inline-block;
    margin-top: 10px;
    color: var(--page-about-primary-color);
}

/* Details tag specific styling for native expand/collapse */
.page-about__faq-item[open] .page-about__faq-question {
  color: var(--page-about-primary-color);
}

.page-about__faq-item summary {
  list-style: none;
}

.page-about__faq-item summary::-webkit-details-marker {
  display: none;
}

/* CTA Section (similar to Hero CTA) */
.page-about__cta {
  text-align: center;
  padding: 80px 20px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }
  .page-about__section-title {
    font-size: 2rem;
  }
  .page-about__grid-item {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

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

  .page-about__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important; /* body handles --header-offset, this is for aesthetic top margin */
  }

  .page-about__hero-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

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

  .page-about__description,
  .page-about__text-block,
  .page-about__card-text,
  .page-about__feature-text,
  .page-about__team-member-role,
  .page-about__faq-answer p {
    font-size: 1rem;
  }

  .page-about__cta-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-about__section-title {
    font-size: 1.8rem;
  }

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

  .page-about__grid-item {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-about__feature-icon,
  .page-about__team-member-photo {
    width: 200px !important;
    height: 200px !important;
    min-width: 200px !important; /* Ensure minimum size */
    min-height: 200px !important; /* Ensure minimum size */
    max-width: 100% !important;
    object-fit: contain;
  }

  .page-about__feature-card,
  .page-about__team-member-card,
  .page-about__card {
    padding: 20px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Ensure all images are responsive and do not overflow */
  .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,
  .page-about__hero-image-wrapper,
  .page-about__cta-buttons,
  .page-about__grid-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(1.6rem, 8vw, 2.2rem);
  }
  .page-about__section-title {
    font-size: 1.5rem;
  }
  .page-about__hero-section {
    padding: 30px 10px;
    padding-top: 10px !important;
  }
  .page-about__section {
    padding: 40px 0;
  }
}