/* 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;
  --text-dark: #333333;
  --text-light: #ffffff;
  --bg-dark: #0a0a0a; /* Từ body background */
}

.page-about {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-light); /* Toàn bộ trang sử dụng chữ sáng vì body background tối */
  background-color: var(--bg-dark);
}

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

/* Hero Section */
.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Nhỏ gọn, không sử dụng var(--header-offset) */
  padding-bottom: 60px;
  background-color: var(--bg-dark);
}

.page-about__hero-image-wrapper {
  width: 100%;
  position: relative;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 600px; /* Giới hạn chiều cao cho hình ảnh hero */
}

.page-about__hero-content {
  text-align: center;
  padding: 40px 20px;
  max-width: 900px;
  margin-top: -80px; /* Kéo nội dung lên một chút để có hiệu ứng thị giác */
  background: rgba(10, 10, 10, 0.85); /* Nền tối nhẹ để chữ nổi bật */
  border-radius: 10px;
  z-index: 1;
  position: relative;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}

.page-about__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.page-about__hero-description {
  font-size: 1.15rem;
  color: var(--secondary-color);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

/* General Section Styling */
.page-about__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 40px;
  padding-top: 40px;
}

.page-about__section-title--spacing {
  margin-top: 80px;
}

.page-about__text-block {
  font-size: 1.05rem;
  margin-bottom: 20px;
  color: var(--text-light);
  text-align: justify;
}

.page-about__dark-section {
  background-color: #1a1a1a; /* Nền tối hơn một chút */
  color: var(--text-light);
  padding: 60px 0;
}

.page-about__dark-section .page-about__section-title {
  color: var(--primary-color);
}

/* Buttons */
.page-about__btn-primary,
.page-about__btn-secondary,
.page-about__btn-tertiary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  transition: all 0.3s ease;
  text-align: center;
  box-sizing: border-box;
  white-space: normal; /* Cho phép xuống dòng */
  word-wrap: break-word; /* Ngắt từ */
  max-width: 100%;
}

.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%);
  transform: translateY(-2px);
}

.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);
  transform: translateY(-2px);
}

.page-about__btn-tertiary {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--secondary-color);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 10px 20px;
  font-size: 0.95rem;
}

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

.page-about__cta-center {
  text-align: center;
  margin-top: 40px;
}

/* Intro Section */
.page-about__intro-section {
  padding: 60px 0;
  background-color: var(--bg-dark);
}

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

.page-about__grid-item {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-about__grid-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.page-about__product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

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

.page-about__grid-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Trust Section */
.page-about__trust-section {
  padding: 60px 0;
  background-color: var(--bg-dark);
}

.page-about__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  margin-top: 40px;
}

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

.page-about__about-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.2);
  display: block;
}

/* Customer Service Section */
.page-about__service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
  text-align: center;
}

.page-about__service-item {
  background-color: rgba(255, 255, 255, 0.08);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.page-about__service-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 50%; /* Có thể là hình tròn nếu là icon */
  background-color: var(--primary-color);
  padding: 10px;
}

.page-about__service-item h3 {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.page-about__service-item p {
  font-size: 0.95rem;
  color: var(--text-light);
}

/* FAQ Section */
.page-about__faq-section {
  padding: 60px 0;
  background-color: #1a1a1a;
}

.page-about__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__faq-item {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-light);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color 0.3s ease;
  color: var(--secondary-color);
}

.page-about__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.page-about__faq-item[open] > .page-about__faq-question {
  background-color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  color: var(--secondary-color);
}

.page-about__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-about__faq-item[open] .page-about__faq-toggle {
  transform: rotate(45deg);
}

.page-about__faq-answer {
  padding: 15px 25px 25px;
  font-size: 1rem;
  color: var(--text-light);
}

.page-about__faq-answer p {
  margin-bottom: 15px;
}

.page-about__faq-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.page-about__faq-link:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* Media Queries for Responsiveness */
@media (max-width: 1024px) {
  .page-about__hero-content {
    margin-top: -60px;
    padding: 30px 15px;
  }

  .page-about__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .page-about__hero-description {
    font-size: 1rem;
  }

  .page-about__content-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .page-about__image-block {
    order: -1; /* Đẩy hình ảnh lên trên trên mobile */
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    padding-bottom: 40px;
  }

  .page-about__hero-image {
    max-height: 400px;
  }

  .page-about__hero-content {
    margin-top: -40px;
    padding: 20px 10px;
  }

  .page-about__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

  .page-about__hero-description {
    font-size: 0.95rem;
  }

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

  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about__btn-tertiary {
    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-buttons,
  .page-about__button-group,
  .page-about__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-about__section-title {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    padding-top: 30px;
    margin-bottom: 30px;
  }

  .page-about__text-block {
    font-size: 0.95rem;
  }

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

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

  .page-about__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-about__faq-answer {
    padding: 10px 20px 20px;
  }

  /* Mobile specific image and video rules */
  .page-about img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-about__section,
  .page-about__card,
  .page-about__container,
  .page-about__hero-section,
  .page-about__intro-section,
  .page-about__products-section,
  .page-about__trust-section,
  .page-about__customer-service-section,
  .page-about__promotions-future-section,
  .page-about__faq-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

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

  .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;
  }
}

/* Darken function for hover effects */
@function darken($color, $amount) {
  @return mix(rgb(0, 0, 0), $color, $amount);
}