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

:root {
  --primary-color: #26A9E0;
  --secondary-color: #FFFFFF;
  --login-color: #EA7C07;
  --background-color: #FFFFFF;
  --text-dark: #333333;
  --text-light: #ffffff;
  --black-color: #000000; /* Assuming this is the body background from shared.css */
}

.page-about {
  color: var(--text-light); /* Default text color for dark body background */
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--black-color); /* Ensure consistency if main is not full-width */
}

.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  text-align: center;
  background-color: var(--primary-color);
  color: var(--text-light);
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-width: 1200px; /* Constrain image width */
  margin-bottom: 30px;
  overflow: hidden;
  border-radius: 8px;
}

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

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

.page-about__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-light);
}

.page-about__subtitle {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.9);
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  box-sizing: border-box;
}

.page-about__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 50px;
}

.page-about__sub-title {
  font-size: 1.8rem;
  font-weight: 600;
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-about__content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 768px) {
  .page-about__content-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-about__content-grid--reverse {
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "image text";
  }
  .page-about__content-grid--reverse .page-about__image-block { grid-area: image; }
  .page-about__content-grid--reverse .page-about__text-block { grid-area: text; }
}

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

.page-about__content-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  object-fit: cover;
  min-width: 200px;
  min-height: 200px;
}

.page-about__list {
  list-style: disc;
  margin-left: 20px;
  padding-left: 0;
}

.page-about__list li {
  margin-bottom: 10px;
}

.page-about__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__card {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-light);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 200px; /* Ensure cards have some height */
}

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

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  cursor: pointer;
  text-align: center;
  box-sizing: border-box;
}

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

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

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

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

.page-about__cta-center {
  text-align: center;
  margin-top: 50px;
}

.page-about__faq-section {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.page-about__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

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

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-light);
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

.page-about__faq-question::-webkit-details-marker { /* For details/summary */
  display: none;
}

.page-about__faq-item[open] .page-about__faq-question {
  background-color: rgba(0, 0, 0, 0.2);
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  margin-left: 15px;
}

.page-about__faq-answer {
  padding: 0 20px 20px;
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
}

.page-about__contact-section {
  background-color: var(--background-color);
  color: var(--text-dark);
  text-align: center;
}

.page-about__contact-description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__contact-list {
  list-style: none;
  padding: 0;
  margin-bottom: 40px;
}

.page-about__contact-list li {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.page-about__contact-list a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-about__contact-list a:hover {
  text-decoration: underline;
}

/* Color contrast classes */
.page-about__dark-bg {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.page-about__light-bg {
  background-color: var(--background-color);
  color: var(--text-dark);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .page-about__container,
  .page-about__hero-section,
  .page-about__intro-section,
  .page-about__why-choose-section,
  .page-about__commitment-section,
  .page-about__team-section,
  .page-about__future-section,
  .page-about__faq-section,
  .page-about__contact-section {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__hero-section {
    padding-top: 10px !important;
  }

  .page-about__main-title {
    font-size: 2rem !important;
  }

  .page-about__subtitle {
    font-size: 1rem !important;
  }

  .page-about__section-title {
    font-size: 1.8rem !important;
    margin-bottom: 30px !important;
  }

  .page-about__sub-title {
    font-size: 1.5rem !important;
  }

  .page-about__hero-image,
  .page-about__content-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }

  .page-about__card {
    padding: 20px !important;
    min-height: 150px; /* Adjust for smaller screens */
  }

  .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-center {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }

  .page-about__faq-question {
    font-size: 1rem !important;
    padding: 15px !important;
  }

  .page-about__faq-answer {
    padding: 0 15px 15px !important;
  }
}