/* style/about.css */

/* Biến CSS cục bộ (nếu cần) */
:root {
  --page-about-primary-color: #017439;
  --page-about-secondary-color: #FFFFFF;
  --page-about-text-dark: #333333;
  --page-about-text-light: #FFFFFF;
  --page-about-btn-register-bg: #C30808;
  --page-about-btn-login-bg: #C30808;
  --page-about-btn-font-color: #FFFF00;
}

/* Các kiểu chung cho trang About Us */
.page-about {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--page-about-text-dark); /* Mặc định chữ tối cho nền sáng */
}

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

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

.page-about__paragraph {
  font-size: 1.1em;
  line-height: 1.8;
  margin-bottom: 1em;
  color: inherit;
}

.page-about__link {
  color: var(--page-about-primary-color);
  text-decoration: none;
  font-weight: bold;
}

.page-about__link:hover {
  text-decoration: underline;
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 600px;
  padding: 80px 20px;
  padding-top: var(--header-offset, 120px); /* Đảm bảo không bị header che */
  text-align: center;
  overflow: hidden;
  color: var(--page-about-text-light); /* Chữ sáng trên nền tối */
}

.page-about__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.page-about__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5); /* Làm tối ảnh nền để chữ nổi bật */
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.page-about__hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  font-weight: 900;
  color: var(--page-about-text-light);
}

.page-about__hero-description {
  font-size: 1.3em;
  margin-bottom: 40px;
  line-height: 1.7;
  color: var(--page-about-text-light);
}

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

/* Buttons */
.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  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; /* Cho phép chữ xuống dòng */
  word-wrap: break-word;
}

.page-about__btn-primary {
  background-color: var(--page-about-btn-register-bg); /* Màu đỏ cho đăng ký */
  color: var(--page-about-btn-font-color); /* Chữ vàng */
  border: 2px solid var(--page-about-btn-register-bg);
}

.page-about__btn-primary:hover {
  background-color: #a30707;
  border-color: #a30707;
}

.page-about__btn-secondary {
  background-color: transparent;
  color: var(--page-about-btn-font-color); /* Chữ vàng */
  border: 2px solid var(--page-about-btn-font-color);
}

.page-about__btn-secondary:hover {
  background-color: var(--page-about-btn-font-color);
  color: var(--page-about-btn-register-bg);
}

/* Intro Section */
.page-about__intro-section {
  padding: 80px 0;
  background-color: var(--page-about-secondary-color);
  color: var(--page-about-text-dark);
}

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

.page-about__content-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  min-width: 200px;
  min-height: 200px;
}

/* Values Section */
.page-about__values-section {
  padding: 80px 0;
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
}

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

.page-about__value-card {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  transition: transform 0.3s ease;
}

.page-about__value-card:hover {
  transform: translateY(-5px);
}

.page-about__value-title {
  font-size: 1.8em;
  margin-bottom: 15px;
  color: var(--page-about-text-light);
}

/* Why Choose Section */
.page-about__why-choose-section {
  padding: 80px 0;
  background-color: var(--page-about-secondary-color);
  color: var(--page-about-text-dark);
}

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

.page-about__advantage-card {
  background-color: var(--page-about-secondary-color);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
  border: 1px solid #e0e0e0;
}

.page-about__advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
}

.page-about__advantage-icon {
  width: 100%; /* Đảm bảo hình ảnh chiếm hết chiều rộng thẻ */
  height: auto;
  max-height: 200px; /* Giới hạn chiều cao để không quá lớn */
  object-fit: contain;
  margin-bottom: 20px;
  min-width: 200px;
  min-height: 200px;
}

.page-about__advantage-title {
  font-size: 1.5em;
  margin-bottom: 15px;
  color: var(--page-about-primary-color);
}

/* Commitment Section */
.page-about__commitment-section {
  padding: 80px 0;
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
}

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

.page-about__commitment-item {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
}

.page-about__commitment-title {
  font-size: 1.8em;
  margin-bottom: 15px;
  color: var(--page-about-text-light);
}

/* FAQ Section */
.page-about__faq-section {
  padding: 80px 0;
  background-color: var(--page-about-secondary-color);
  color: var(--page-about-text-dark);
}

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

.page-about__faq-item {
  border-bottom: 1px solid #e0e0e0;
  margin-bottom: 15px;
  padding-bottom: 15px;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.2em;
  font-weight: bold;
  color: var(--page-about-primary-color);
  cursor: pointer;
  padding: 15px 0;
}

.page-about__faq-question:hover {
  color: #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); /* Chuyển thành dấu X hoặc xoay dấu + */
  content: '−'; /* Thay đổi dấu thành trừ */
}

.page-about__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 15px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--page-about-text-dark);
}

.page-about__faq-item.active .page-about__faq-answer {
  max-height: 1000px !important; /* Đủ lớn để chứa mọi nội dung */
  padding: 15px;
}

/* Contact CTA Section */
.page-about__contact-cta {
  padding: 80px 0;
  text-align: center;
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
}

/* Background colors for contrast */
.page-about__dark-bg {
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
}

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

/* Responsive Design */
@media (min-width: 769px) {
  .page-about__content-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-about__content-text {
    order: 1;
  }
  .page-about__image-container {
    order: 2;
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    min-height: 500px;
    padding: 60px 15px;
    padding-top: var(--header-offset, 120px) !important; /* Đảm bảo không bị header che trên mobile */
  }

  .page-about__hero-title {
    font-size: 2.5em;
  }

  .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%;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

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

  .page-about__intro-section,
  .page-about__values-section,
  .page-about__why-choose-section,
  .page-about__commitment-section,
  .page-about__faq-section,
  .page-about__contact-cta {
    padding: 60px 0;
  }

  .page-about__container {
    padding: 0 15px;
  }

  .page-about__content-grid {
    grid-template-columns: 1fr;
  }

  .page-about__content-text {
    order: 2;
  }

  .page-about__image-container {
    order: 1;
  }

  .page-about__values-grid,
  .page-about__advantages-grid,
  .page-about__commitment-grid {
    grid-template-columns: 1fr;
  }

  .page-about__value-title,
  .page-about__advantage-title,
  .page-about__commitment-title {
    font-size: 1.5em;
  }

  .page-about__paragraph {
    font-size: 1em;
  }

  /* Mobile image responsiveness */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }

  /* Mobile video responsiveness */
  .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;
  }

  /* Ensure all containers with images/videos/buttons are responsive */
  .page-about__section,
  .page-about__card,
  .page-about__container,
  .page-about__content-grid,
  .page-about__values-grid,
  .page-about__advantages-grid,
  .page-about__commitment-grid,
  .page-about__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__hero-image {
    filter: brightness(0.6); /* Slightly less dark for mobile */
  }
}