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

:root {
  --primary-color: #26A9E0;
  --secondary-color: #FFFFFF;
  --login-button-color: #EA7C07;
  --text-dark: #333333;
  --text-light: #f0f0f0;
  --background-light: #ffffff;
  --background-dark: rgba(0, 0, 0, 0.8); /* Giả định body background là tối */
  --card-bg-dark-theme: rgba(255, 255, 255, 0.1);
  --border-color-dark-theme: rgba(255, 255, 255, 0.2);
}

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-light); /* Mặc định chữ sáng trên nền tối của body */
  background-color: transparent; /* Để nền body show qua */
}

.page-about__section {
  padding: 60px 0;
  text-align: center;
}

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

/* Hero Section */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* Chỉ 10px padding-top, không dùng --header-offset */
  color: var(--secondary-color);
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 600px; /* Giới hạn chiều cao hình ảnh */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.page-about__hero-content {
  position: relative;
  max-width: 900px;
  margin-top: 40px; /* Khoảng cách giữa ảnh và nội dung */
  padding: 20px;
  text-align: center;
  z-index: 2;
}

.page-about__main-title {
  font-size: clamp(2.5em, 5vw, 3.2em);
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 20px;
  line-height: 1.2;
}

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

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

.page-about__btn-primary,
.page-about__btn-secondary,
.page-about__btn-link {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%; /* Đảm bảo nút không tràn */
  white-space: normal; /* Cho phép chữ xuống dòng */
  word-wrap: break-word;
}

.page-about__btn-primary {
  background-color: var(--login-button-color); /* Màu Login */
  color: var(--secondary-color);
  border: 2px solid var(--login-button-color);
}

.page-about__btn-primary:hover {
  background-color: darken(var(--login-button-color), 10%);
  border-color: darken(var(--login-button-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__btn-link {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border: 2px solid var(--primary-color);
  padding: 8px 15px;
  font-size: 0.9em;
}

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

/* Section Titles and Text Blocks */
.page-about__section-title {
  font-size: clamp(1.8em, 4vw, 2.5em);
  color: var(--primary-color);
  margin-bottom: 30px;
  font-weight: 700;
}

.page-about__text-block {
  font-size: 1.05em;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-light);
}

/* Dark and Light Background Sections */
.page-about__dark-section {
  background-color: var(--background-dark);
  color: var(--text-light);
}

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

.page-about__light-bg .page-about__section-title {
  color: var(--primary-color);
}

.page-about__light-bg .page-about__text-block,
.page-about__light-bg .page-about__list-item {
  color: var(--text-dark);
}

.page-about__light-bg .page-about__btn-secondary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

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

/* Mission & Vision Grid */
.page-about__content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__grid-item {
  background-color: var(--card-bg-dark-theme);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border-color-dark-theme);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__grid-title {
  font-size: 1.4em;
  color: var(--primary-color);
  margin-top: 15px;
  margin-bottom: 10px;
}

.page-about__grid-text {
  font-size: 0.95em;
  color: var(--text-light);
}

/* Feature List */
.page-about__feature-list {
  list-style: none;
  padding: 0;
  margin: 30px auto;
  max-width: 900px;
  text-align: left;
}

.page-about__list-item {
  background-color: var(--card-bg-dark-theme);
  margin-bottom: 15px;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  font-size: 1.05em;
  border: 1px solid var(--border-color-dark-theme);
}

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

.page-about__image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin-top: 30px;
  object-fit: cover;
}

.page-about__image--centered {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* Products & Services Grid */
.page-about__product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__product-card {
  background-color: var(--card-bg-dark-theme);
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border-color-dark-theme);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease;
}

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

.page-about__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 15px;
}

.page-about__card-title {
  font-size: 1.3em;
  color: var(--primary-color);
  margin-bottom: 10px;
  flex-grow: 1;
}

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

.page-about__card-title a:hover {
  text-decoration: underline;
}

.page-about__card-text {
  font-size: 0.9em;
  color: var(--text-light);
  margin-bottom: 15px;
}

/* Responsibility Grid */
.page-about__responsibility-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__responsibility-item {
  background-color: var(--card-bg-dark-theme);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border-color-dark-theme);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__responsibility-item .page-about__grid-title a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-about__responsibility-item .page-about__grid-title a:hover {
  text-decoration: underline;
}

/* Team Section */
.page-about__team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__team-member {
  background-color: var(--card-bg-dark-theme);
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--border-color-dark-theme);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__team-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 3px solid var(--primary-color);
}

.page-about__member-name {
  font-size: 1.2em;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.page-about__member-role {
  font-size: 0.9em;
  color: var(--text-light);
}

/* Contact & Support */
.page-about__contact-info {
  margin-top: 30px;
  font-size: 1.1em;
  color: var(--text-light);
}

.page-about__contact-item {
  margin-bottom: 10px;
}

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

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

/* FAQ Section */
.page-about__faq-list {
  margin-top: 40px;
  text-align: left;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__faq-item {
  background-color: var(--card-bg-dark-theme);
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color-dark-theme);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.page-about__faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.1em;
  color: var(--primary-color);
  background-color: rgba(255, 255, 255, 0.05);
  transition: background-color 0.3s ease;
}

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

.page-about__faq-item summary:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--secondary-color);
}

.page-about__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1em;
  color: var(--text-light);
  line-height: 1.7;
}

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

.page-about__faq-answer a:hover {
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__hero-section {
    padding: 10px 0 50px 0;
  }

  .page-about__main-title {
    font-size: clamp(2em, 4.5vw, 2.8em);
  }

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

  .page-about__section-title {
    font-size: clamp(1.6em, 3.5vw, 2.2em);
  }

  .page-about__text-block {
    font-size: 1em;
  }
}

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

  .page-about__section {
    padding: 40px 0;
  }

  .page-about__container,
  .page-about__cta-buttons,
  .page-about__content-grid,
  .page-about__product-grid,
  .page-about__responsibility-grid,
  .page-about__team-grid,
  .page-about__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__hero-section {
    padding: 10px 0 40px 0 !important;
  }

  .page-about__hero-content {
    margin-top: 20px;
    padding: 10px;
  }

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

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

  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about__btn-link {
    width: 100% !important;
    max-width: 100% !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
  }

  .page-about__image,
  .page-about__hero-image,
  .page-about__card-image,
  .page-about__team-photo {
    max-width: 100% !important;
    width: 100% !important; /* Đảm bảo hình ảnh chiếm toàn bộ chiều rộng có thể */
    height: auto !important;
    display: block !important;
  }

  .page-about__hero-image-wrapper {
    max-height: 400px; /* Giảm chiều cao hero image trên mobile */
  }

  .page-about__grid-item,
  .page-about__product-card,
  .page-about__responsibility-item,
  .page-about__team-member,
  .page-about__faq-item {
    padding: 20px;
  }

  .page-about__list-item {
    padding: 15px;
  }

  .page-about__faq-item summary {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-about__faq-answer {
    padding: 0 20px 15px 20px;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(1.5em, 8vw, 2em);
  }

  .page-about__section-title {
    font-size: clamp(1.4em, 6vw, 1.8em);
  }

  .page-about__hero-section {
    padding: 10px 0 30px 0 !important;
  }
}