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

:root {
  --page-about-bg: #08160F;
  --page-about-card-bg: #11271B;
  --page-about-text-main: #F2FFF6;
  --page-about-text-secondary: #A7D9B8;
  --page-about-border: #2E7A4E;
  --page-about-glow: #57E38D;
  --page-about-gold: #F2C14E;
  --page-about-divider: #1E3A2A;
  --page-about-deep-green: #0A4B2C;
  --page-about-btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-about {
  background-color: var(--page-about-bg);
  color: var(--page-about-text-main);
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  padding-top: 0; /* Đảm bảo không có padding-top dư thừa ở đây */
}

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

.page-about__section-title {
  font-size: clamp(28px, 3.5vw, 48px);
  color: var(--page-about-gold);
  text-align: center;
  margin-bottom: 40px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.page-about__text-block {
  font-size: 18px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 30px auto;
  color: var(--page-about-text-secondary);
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0;
  overflow: hidden;
  background-color: var(--page-about-deep-green);
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 70vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 30px; /* Khoảng cách giữa ảnh và nội dung */
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  min-height: 200px; /* Đảm bảo kích thước tối thiểu */
}

.page-about__hero-content {
  text-align: center;
  padding: 0 20px;
  max-width: 900px;
  z-index: 1; /* Đảm bảo nội dung không bị ảnh đè lên nếu có lỗi */
}

.page-about__main-title {
  font-size: clamp(32px, 4vw, 56px);
  color: var(--page-about-gold);
  margin-bottom: 20px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.03em;
}

.page-about__description {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--page-about-text-main);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  min-width: 200px; /* Đảm bảo kích thước tối thiểu */
}

.page-about__btn-primary {
  background: var(--page-about-btn-gradient);
  color: #ffffff; /* Luôn dùng màu trắng cho nút chính */
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(42, 209, 111, 0.4);
}

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

.page-about__btn-secondary:hover {
  transform: translateY(-3px);
  background-color: rgba(242, 193, 78, 0.1);
}

/* Mission & Values Section */
.page-about__mission-values-section {
  padding: 80px 0;
  background-color: var(--page-about-bg);
}

.page-about__values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-about__value-card {
  background-color: var(--page-about-card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--page-about-border);
  color: var(--page-about-text-main);
}

.page-about__value-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-about__value-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
  min-width: 200px;
  min-height: 200px;
}

.page-about__value-title {
  font-size: 24px;
  color: var(--page-about-gold);
  margin-bottom: 15px;
  font-weight: 700;
}

.page-about__value-description {
  font-size: 16px;
  color: var(--page-about-text-secondary);
}

/* Why Choose Us Section */
.page-about__why-choose-us-section {
  padding: 80px 0;
  background-color: var(--page-about-deep-green);
}

.page-about__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-about__feature-card {
  background-color: var(--page-about-card-bg);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--page-about-border);
  color: var(--page-about-text-main);
  text-align: center;
}

.page-about__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-about__feature-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  min-width: 200px;
  min-height: 200px;
}

.page-about__feature-title {
  font-size: 22px;
  color: var(--page-about-gold);
  margin-bottom: 10px;
  font-weight: 700;
}

.page-about__feature-description {
  font-size: 16px;
  color: var(--page-about-text-secondary);
}

/* Future Vision Section */
.page-about__future-vision-section {
  padding: 80px 0;
  background-color: var(--page-about-bg);
}

.page-about__future-vision-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-about__vision-item {
  background-color: var(--page-about-card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--page-about-border);
  color: var(--page-about-text-main);
}

.page-about__vision-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  min-width: 200px;
  min-height: 200px;
}

.page-about__vision-title {
  font-size: 22px;
  color: var(--page-about-gold);
  margin-bottom: 10px;
  font-weight: 700;
}

.page-about__vision-description {
  font-size: 16px;
  color: var(--page-about-text-secondary);
}

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

.page-about__faq-list {
  max-width: 900px;
  margin: 50px auto 0 auto;
}

.page-about__faq-item {
  background-color: var(--page-about-card-bg);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  border: 1px solid var(--page-about-border);
}

.page-about__faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  color: var(--page-about-text-main);
  background-color: var(--page-about-card-bg);
  border-bottom: 1px solid var(--page-about-divider);
}

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

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.page-about__faq-qtext {
  flex-grow: 1;
  color: var(--page-about-gold);
}

.page-about__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  margin-left: 20px;
  color: var(--page-about-gold);
}

.page-about__faq-answer {
  padding: 20px 25px;
  font-size: 16px;
  color: var(--page-about-text-secondary);
  line-height: 1.7;
}

.page-about__faq-item[open] summary {
  border-bottom: none;
}

/* CTA Section */
.page-about__cta-section {
  padding: 80px 0;
  background-color: var(--page-about-bg);
  text-align: center;
}

.page-about__cta-section .page-about__section-title {
  color: var(--page-about-gold);
}

.page-about__cta-section .page-about__text-block {
  margin-bottom: 40px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__hero-image-wrapper {
    max-height: 60vh;
  }
  .page-about__values-grid,
  .page-about__features-grid,
  .page-about__future-vision-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  .page-about__container {
    padding: 30px 20px;
  }
  .page-about__section-title {
    margin-bottom: 30px;
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }
  .page-about__hero-image-wrapper {
    max-height: 50vh;
  }
  .page-about__main-title {
    font-size: clamp(28px, 8vw, 40px);
  }
  .page-about__description {
    font-size: clamp(15px, 4vw, 18px);
  }
  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
  }
  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 16px;
  }
  .page-about__container {
    padding: 20px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-about__text-block {
    font-size: 16px;
    text-align: left;
  }
  .page-about__section-title {
    font-size: clamp(24px, 7vw, 36px);
    text-align: left;
  }

  /* Mobile image responsiveness */
  .page-about img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-about__hero-image,
  .page-about__value-icon,
  .page-about__feature-image,
  .page-about__vision-image {
    min-width: 200px !important;
    min-height: 200px !important;
    width: 100% !important; /* Ensure images fill container */
    height: auto !important;
  }

  /* Mobile container responsiveness */
  .page-about__hero-section,
  .page-about__mission-values-section,
  .page-about__why-choose-us-section,
  .page-about__future-vision-section,
  .page-about__faq-section,
  .page-about__cta-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
  }
  .page-about__values-grid,
  .page-about__features-grid,
  .page-about__future-vision-grid {
    grid-template-columns: 1fr;
  }
  .page-about__value-card, .page-about__feature-card, .page-about__vision-item {
    padding: 20px;
  }
  .page-about__faq-item summary {
    padding: 15px 20px;
    font-size: 16px;
  }
  .page-about__faq-answer {
    padding: 15px 20px;
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(24px, 10vw, 32px);
  }
  .page-about__description {
    font-size: clamp(14px, 4.5vw, 16px);
  }
  .page-about__btn-primary,
  .page-about__btn-secondary {
    font-size: 15px;
    padding: 10px 15px;
  }
  .page-about__section-title {
    font-size: clamp(22px, 8vw, 30px);
  }
}