/* style/about.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần thêm */
.page-about {
  font-family: 'Arial', sans-serif;
  color: var(--text-main-color); /* Sử dụng màu văn bản chính từ palette */
  background-color: var(--background-color); /* Sử dụng màu nền chính từ palette */
}

.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0; /* Chỉ một khoảng đệm nhỏ ở trên, đảm bảo không bị trùng với body padding-top */
  text-align: center;
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 675px; /* Giới hạn chiều cao cho hero image */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.page-about__hero-content {
  max-width: 900px;
  margin: 40px auto 0 auto;
  padding: 0 20px;
}

.page-about__main-title {
  color: var(--text-main-color);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  font-size: clamp(2.2rem, 4vw, 3.5rem); /* Responsive font size */
}

.page-about__description {
  color: var(--text-secondary-color);
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 30px;
}

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

.page-about__btn-primary,
.page-about__btn-secondary {
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

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

.page-about__btn-secondary:hover {
  background-color: var(--border-color);
  color: #ffffff;
}

.page-about__dark-section {
  background-color: var(--card-bg-color);
  color: var(--text-main-color);
  padding: 60px 0;
}

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

.page-about__section-title {
  color: var(--text-main-color);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 50px;
  line-height: 1.3;
}

.page-about__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-about__card {
  background-color: var(--card-bg-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  color: var(--text-main-color);
  border: 1px solid var(--border-color);
}

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

.page-about p {
  color: var(--text-secondary-color);
  line-height: 1.7;
  margin-bottom: 15px;
}

.page-about__values-section {
  padding: 60px 0;
  background-color: var(--background-color);
}

.page-about__values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-about__value-item {
  background-color: var(--card-bg-color);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.page-about__value-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 8px; /* Ensure images are not small icons */
}

.page-about__value-title {
  color: var(--text-main-color);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.page-about__history-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 0;
}

.page-about__history-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  background-color: var(--divider-color);
  transform: translateX(-50%);
}

.page-about__timeline-item {
  position: relative;
  width: 50%;
  padding: 20px 0;
}

.page-about__timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 40px;
  text-align: right;
}

.page-about__timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 40px;
  text-align: left;
}

.page-about__timeline-item::before {
  content: '';
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  background-color: var(--gold-color);
  border-radius: 50%;
  border: 2px solid var(--deep-green-color);
  transform: translateY(-50%);
  z-index: 1;
}

.page-about__timeline-item:nth-child(odd)::before {
  right: -6px;
}

.page-about__timeline-item:nth-child(even)::before {
  left: -6px;
}

.page-about__timeline-year {
  color: var(--text-main-color);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.page-about__why-choose-us-section {
  padding: 60px 0;
  background-color: var(--background-color);
}

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

.page-about__reason-card {
  background-color: var(--card-bg-color);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color);
}

.page-about__reason-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 8px; /* Ensure images are not small icons */
}

.page-about__reason-title {
  color: var(--text-main-color);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 15px;
}

.page-about__cta-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--deep-green-color);
}

.page-about__cta-content p {
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: var(--text-secondary-color);
  font-size: 1.1rem;
}

/* FAQ Section Styling */
.page-about__faq-section {
  padding: 60px 0;
  background-color: var(--card-bg-color);
}

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

.page-about__faq-item {
  background-color: var(--background-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

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

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

.page-about__faq-item[open] > .page-about__faq-question {
  background-color: var(--deep-green-color);
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
}

.page-about__faq-answer {
  padding: 0 20px 20px 20px;
  color: var(--text-secondary-color);
  line-height: 1.6;
  font-size: 1rem;
}

/* Custom properties for colors */
:root {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-bg-color: #11271B;
  --background-color: #08160F;
  --text-main-color: #F2FFF6;
  --text-secondary-color: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green-color: #0A4B2C;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .page-about__history-timeline::before {
    left: 20px;
    transform: translateX(0);
  }
  .page-about__timeline-item {
    width: 100%;
    left: 0 !important;
    padding-left: 60px !important;
    padding-right: 20px !important;
    text-align: left !important;
  }
  .page-about__timeline-item::before {
    left: 14px !important;
    right: auto !important;
  }
}

@media (max-width: 768px) {
  .page-about__hero-content {
    margin-top: 20px;
  }

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

  .page-about__description {
    font-size: 1rem;
  }

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

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__section-title {
    font-size: 2rem;
    margin-bottom: 30px;
  }

  .page-about__value-icon,
  .page-about__reason-icon {
    width: 80px;
    height: 80px;
  }

  /* Ensure all images are responsive */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  /* Ensure all containers with images are responsive */
  .page-about__hero-section,
  .page-about__vision-mission-section,
  .page-about__values-section,
  .page-about__history-section,
  .page-about__why-choose-us-section,
  .page-about__cta-section,
  .page-about__faq-section,
  .page-about__container,
  .page-about__card,
  .page-about__value-item,
  .page-about__reason-card,
  .page-about__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__hero-section {
    padding-left: 0;
    padding-right: 0;
  }
  .page-about__hero-content {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__hero-image-wrapper {
    padding-left: 0;
    padding-right: 0;
  }

  .page-about__cta-content {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__cta-buttons {
    padding-left: 0;
    padding-right: 0;
  }
  
  /* FAQ specific mobile styles */
  .page-about__faq-question {
    font-size: 1.1rem;
    padding: 15px;
  }
  .page-about__faq-answer {
    padding: 0 15px 15px 15px;
  }
}