/* style/about.css */

/* Biến màu sắc */
:root {
  --color-primary: #11A84E;
  --color-secondary: #22C768;
  --color-button-gradient-start: #2AD16F;
  --color-button-gradient-end: #13994A;
  --color-card-bg: #11271B;
  --color-bg-main: #08160F;
  --color-text-main: #F2FFF6;
  --color-text-secondary: #A7D9B8;
  --color-border: #2E7A4E;
  --color-glow: #57E38D;
  --color-gold: #F2C14E;
  --color-divider: #1E3A2A;
  --color-deep-green: #0A4B2C;
}

.page-about {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--color-text-main); /* Default text color for the page */
  background-color: var(--color-bg-main); /* Default background for the page */
}

.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;
  text-align: center;
  padding: 10px 0 60px 0; /* body padding-top handles header offset, this is for internal spacing */
  background-color: var(--color-bg-main);
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 600px;
  overflow: hidden;
  position: relative;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.7); /* Slightly dim the image for text contrast */
}

.page-about__hero-content {
  position: relative; /* Ensure content is above the image but not overlapping */
  z-index: 10;
  margin-top: -150px; /* Pull content up over the image slightly for visual effect */
  padding: 0 20px;
  max-width: 900px;
}

.page-about__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--color-gold);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.page-about__hero-description {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__cta-button {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn-primary {
  background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
  color: #ffffff;
  border: none;
}

.page-about__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Section General Styles */
.page-about__section-title {
  font-size: 2.5rem;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 10px;
}

.page-about__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--color-gold);
  border-radius: 2px;
}

.page-about__text-block {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--color-text-secondary);
  text-align: justify;
}

/* Introduction Section */
.page-about__introduction-section {
  padding: 80px 0;
  background-color: var(--color-bg-main);
}

/* Vision Mission Section */
.page-about__vision-mission-section {
  padding: 80px 0;
  background-color: var(--color-card-bg); /* Darker background for contrast */
  color: var(--color-text-main);
}

.page-about__grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 30px;
}

.page-about__card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4);
}

.page-about__card-title {
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 15px;
  text-align: center;
}

.page-about__card-text {
  color: var(--color-text-secondary);
  font-size: 1rem;
  text-align: justify;
}

/* History Section */
.page-about__history-section {
  padding: 80px 0;
  background-color: var(--color-bg-main);
}

.page-about__history-content {
  display: flex;
  align-items: center;
  gap: 40px;
}

.page-about__history-text {
  flex: 1;
}

.page-about__history-image-wrapper {
  flex: 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

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

/* Core Values Section */
.page-about__core-values-section {
  padding: 80px 0;
  background-color: var(--color-card-bg);
}

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

.page-about__value-card {
  background-color: var(--color-deep-green);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-about__value-title {
  font-size: 1.5rem;
  color: var(--color-gold);
  margin-bottom: 10px;
}

.page-about__value-description {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

/* Products Services Section */
.page-about__products-services-section {
  padding: 80px 0;
  background-color: var(--color-bg-main);
}

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

.page-about__product-card {
  background-color: var(--color-card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  transition: transform 0.3s ease;
}

.page-about__product-card:hover {
  transform: translateY(-8px);
}

.page-about__product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-about__product-title {
  font-size: 1.6rem;
  margin: 20px 15px 10px 15px;
}

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

.page-about__product-title a:hover {
  text-decoration: underline;
  color: var(--color-gold);
}

.page-about__product-description {
  color: var(--color-text-secondary);
  padding: 0 15px 20px 15px;
  font-size: 0.95rem;
}

/* Security Section */
.page-about__security-section {
  padding: 80px 0;
  background-color: var(--color-card-bg);
}

.page-about__security-content {
  display: flex;
  align-items: center;
  gap: 40px;
}

.page-about__security-text {
  flex: 1;
}

.page-about__security-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

.page-about__security-list-item {
  background-color: var(--color-deep-green);
  margin-bottom: 10px;
  padding: 15px 20px;
  border-left: 5px solid var(--color-gold);
  border-radius: 5px;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

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

.page-about__security-image-wrapper {
  flex: 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

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

/* Social Responsibility Section */
.page-about__social-responsibility-section {
  padding: 80px 0;
  background-color: var(--color-bg-main);
}

.page-about__responsibility-content {
  display: flex;
  align-items: center;
  gap: 40px;
}

.page-about__responsibility-image-wrapper {
  flex: 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

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

.page-about__responsibility-text {
  flex: 1;
}

/* Team Section */
.page-about__team-section {
  padding: 80px 0;
  background-color: var(--color-card-bg);
}

.page-about__team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__team-member-card {
  background-color: var(--color-deep-green);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-about__team-member-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 20px auto;
  border: 3px solid var(--color-primary);
}

.page-about__member-name {
  font-size: 1.5rem;
  color: var(--color-gold);
  margin-bottom: 5px;
}

.page-about__member-role {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 15px;
}

.page-about__member-bio {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  text-align: justify;
}

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

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

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

.page-about__faq-list {
  max-width: 900px;
  margin: 40px auto 0 auto;
}

.page-about__faq-item {
  background-color: var(--color-deep-green);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  background-color: var(--color-deep-green);
  border-bottom: 1px solid var(--color-divider);
  list-style: none; /* Remove default marker for details summary */
}

.page-about__faq-item[open] > .page-about__faq-question {
  border-bottom: 1px solid var(--color-gold);
}

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

.page-about__faq-qtext {
  flex-grow: 1;
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gold);
  margin-left: 15px;
  line-height: 1;
}

.page-about__faq-answer {
  padding: 15px 25px 20px 25px;
  font-size: 1rem;
  color: var(--color-text-secondary);
  text-align: justify;
}

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

.page-about__cta-section .page-about__section-title {
  color: #ffffff;
}

.page-about__cta-section .page-about__section-title::after {
  background-color: #ffffff;
}

.page-about__cta-section .page-about__text-block {
  color: #ffffff;
  max-width: 800px;
  margin: 0 auto 40px auto;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-about__hero-content {
    margin-top: -100px;
  }
  .page-about__grid-layout, .page-about__history-content, .page-about__security-content, .page-about__responsibility-content {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
  .page-about__history-image-wrapper, .page-about__security-image-wrapper, .page-about__responsibility-image-wrapper {
    order: -1; /* Image first on mobile for some sections */
  }
  .page-about__section-title {
    font-size: 2rem;
  }
  .page-about__card-title {
    font-size: 1.6rem;
  }
  .page-about__product-title {
    font-size: 1.4rem;
  }
}

@media (max-width: 768px) {
  .page-about__hero-content {
    margin-top: -50px;
  }
  .page-about__main-title {
    font-size: clamp(2rem, 8vw, 2.8rem);
  }
  .page-about__hero-description {
    font-size: 1rem;
  }
  .page-about__cta-button {
    padding: 12px 25px;
  }
  .page-about__introduction-section, .page-about__vision-mission-section, .page-about__history-section, .page-about__core-values-section, .page-about__products-services-section, .page-about__security-section, .page-about__social-responsibility-section, .page-about__team-section, .page-about__future-section, .page-about__faq-section, .page-about__cta-section {
    padding: 40px 0;
  }
  .page-about__section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
  }
  .page-about__text-block {
    font-size: 0.95rem;
  }
  .page-about__grid-layout, .page-about__products-grid, .page-about__values-grid, .page-about__team-grid {
    grid-template-columns: 1fr;
  }
  .page-about__history-content, .page-about__security-content, .page-about__responsibility-content {
    flex-direction: column;
  }
  .page-about__history-image-wrapper, .page-about__security-image-wrapper, .page-about__responsibility-image-wrapper {
    order: -1; /* Image first on mobile */
    margin-bottom: 20px;
  }
  .page-about__product-image {
    height: 180px;
  }
  .page-about__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }
  .page-about__faq-answer {
    padding: 10px 20px 15px 20px;
  }

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

  /* Mobile container responsiveness */
  .page-about__container,
  .page-about__hero-section,
  .page-about__introduction-section,
  .page-about__vision-mission-section,
  .page-about__history-section,
  .page-about__core-values-section,
  .page-about__products-services-section,
  .page-about__security-section,
  .page-about__social-responsibility-section,
  .page-about__team-section,
  .page-about__future-section,
  .page-about__faq-section,
  .page-about__cta-section,
  .page-about__hero-image-wrapper,
  .page-about__history-image-wrapper,
  .page-about__security-image-wrapper,
  .page-about__responsibility-image-wrapper,
  .page-about__product-card,
  .page-about__value-card,
  .page-about__team-member-card,
  .page-about__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important; /* Ensure no horizontal scroll */
  }

  /* Mobile button responsiveness */
  .page-about__cta-button,
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about a[class*="button"],
  .page-about a[class*="btn"] {
    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__hero-content .page-about__cta-button {
    margin-left: auto;
    margin-right: auto;
  }

  .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__cta-buttons {
    display: flex;
    flex-direction: column;
  }

  /* First section padding */
  .page-about__hero-section {
    padding-top: 10px !important; /* body has padding-top from shared.css */
  }

  /* Hide some elements or adjust layout for smaller screens if needed */
  .page-about__team-member-card .page-about__member-bio {
    display: none;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(1.8rem, 10vw, 2.5rem);
  }
  .page-about__hero-description {
    font-size: 0.9rem;
  }
  .page-about__section-title {
    font-size: 1.5rem;
  }
  .page-about__card-title {
    font-size: 1.4rem;
  }
  .page-about__value-title {
    font-size: 1.3rem;
  }
  .page-about__product-title {
    font-size: 1.2rem;
  }
}

/* Ensure contrast for text on various backgrounds */
.page-about__dark-section {
  background-color: var(--color-card-bg);
  color: var(--color-text-main);
}

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

.page-about__cta-section {
  background-color: var(--color-primary);
  color: #ffffff;
}

.page-about__cta-section .page-about__section-title,
.page-about__cta-section .page-about__text-block {
  color: #ffffff;
}

.page-about__cta-section .page-about__section-title::after {
  background-color: #ffffff;
}