/* style/about.css */

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

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--page-about-text-main); /* Default text color for the page, adapting to dark body background */
  background-color: var(--page-about-background-color); /* Matches the body background if not overridden */
}

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

/* Sections */
.page-about__hero-section,
.page-about__mission-vision-section,
.page-about__why-choose-us-section,
.page-about__faq-section,
.page-about__cta-bottom-section {
  padding: 60px 0;
  text-align: center;
}

.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 80px;
  overflow: hidden;
  background: var(--page-about-background-color);
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  max-height: 675px;
  object-fit: cover;
  display: block;
}

.page-about__hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin-top: 40px; /* Separates content from image */
  color: var(--page-about-text-main);
  padding: 0 20px;
}

.page-about__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--page-about-gold-color);
  text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

.page-about__subtitle {
  font-size: 1.25rem;
  margin-bottom: 30px;
  color: var(--page-about-text-secondary);
}

.page-about__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  box-sizing: border-box;
}

.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: 1.1rem;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
  width: auto;
}

.page-about__btn-primary {
  background: var(--page-about-button-gradient-start);
  background: linear-gradient(180deg, var(--page-about-button-gradient-start) 0%, var(--page-about-button-gradient-end) 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  background: var(--page-about-button-gradient-end);
  background: linear-gradient(180deg, var(--page-about-button-gradient-end) 0%, var(--page-about-button-gradient-start) 100%);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

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

.page-about__btn-secondary:hover {
  background: var(--page-about-button-gradient-start);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-about__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 30px;
  color: var(--page-about-gold-color);
  font-weight: bold;
  text-shadow: 0 0 8px rgba(87, 227, 141, 0.3);
}

.page-about__mission-vision-section,
.page-about__why-choose-us-section {
  background-color: var(--page-about-background-color);
}

.page-about__container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 40px;
  text-align: left;
}

.page-about__text-block {
  flex: 1;
  min-width: 300px;
  max-width: 600px;
  color: var(--page-about-text-main);
}

.page-about__text-block p {
  margin-bottom: 15px;
  color: var(--page-about-text-secondary);
}

.page-about__image {
  flex: 1;
  min-width: 300px;
  max-width: 500px;
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  object-fit: cover;
}

.page-about__values-section,
.page-about__team-section,
.page-about__cta-bottom-section {
  background-color: var(--page-about-card-bg);
  padding: 80px 0;
}

.page-about__dark-section .page-about__section-title,
.page-about__dark-section p,
.page-about__dark-section h3 {
  color: var(--page-about-text-main);
}

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

.page-about__value-card,
.page-about__team-member-card {
  background-color: var(--page-about-background-color);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  color: var(--page-about-text-main);
  border: 1px solid var(--page-about-border-color);
}

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

.page-about__card-title {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--page-about-gold-color);
}

.page-about__value-card p {
  color: var(--page-about-text-secondary);
}

.page-about__features-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 30px;
  color: var(--page-about-text-secondary);
  text-align: left;
}

.page-about__features-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
}

.page-about__features-list li::before {
  content: '✔';
  color: var(--page-about-glow-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.page-about__team-intro,
.page-about__closing-statement {
  max-width: 800px;
  margin: 0 auto 40px;
  color: var(--page-about-text-secondary);
  font-size: 1.1rem;
}

.page-about__member-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 15px;
  border: 3px solid var(--page-about-glow-color);
}

.page-about__member-name {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--page-about-gold-color);
  margin-bottom: 5px;
}

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

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

.page-about__faq-section {
  background-color: var(--page-about-background-color);
  padding: 80px 0;
}

.page-about__faq-list {
  max-width: 800px;
  margin: 40px auto 0;
  text-align: left;
}

.page-about__faq-item {
  background-color: var(--page-about-card-bg);
  border: 1px solid var(--page-about-border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--page-about-text-main);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.1rem;
  background-color: var(--page-about-deep-green);
  color: var(--page-about-text-main);
  transition: background-color 0.3s ease;
}

.page-about__faq-question:hover {
  background-color: var(--page-about-border-color);
}

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

.page-about__faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
  color: var(--page-about-text-secondary);
}

.page-about__faq-answer p {
  padding-top: 15px;
  padding-bottom: 15px;
  margin-bottom: 0;
}

.page-about__faq-item[open] .page-about__faq-answer {
  max-height: 2000px; /* Large enough to accommodate content */
  padding-top: 15px;
  padding-bottom: 15px;
}

.page-about__cta-bottom-section {
  padding-top: 80px;
  padding-bottom: 80px;
}

.page-about__cta-description {
  max-width: 800px;
  margin: 0 auto 40px;
  font-size: 1.2rem;
  color: var(--page-about-text-secondary);
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-about__container {
    flex-direction: column;
  }
  .page-about__image {
    margin-bottom: 30px;
  }
  .page-about__text-block {
    text-align: center;
  }
  .page-about__features-list {
    text-align: left;
    margin: 20px auto 30px;
    max-width: 500px;
  }
}

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

  .page-about__hero-section,
  .page-about__mission-vision-section,
  .page-about__why-choose-us-section,
  .page-about__faq-section,
  .page-about__cta-bottom-section {
    padding: 40px 0;
  }

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

  .page-about__main-title {
    font-size: 2.2rem;
  }

  .page-about__subtitle {
    font-size: 1rem;
  }

  .page-about__section-title {
    font-size: 2rem;
  }

  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
  }

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

  .page-about__image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

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

  .page-about__value-card,
  .page-about__team-member-card,
  .page-about__card {
    padding: 20px;
  }

  .page-about__card-icon {
    width: 80px;
    height: 80px;
  }

  .page-about__faq-list {
    margin-top: 20px;
    padding: 0 15px;
  }

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

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

  .page-about__faq-answer p {
    padding-top: 10px;
    padding-bottom: 10px;
  }

  /* Ensure all images are responsive */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-about__section,
  .page-about__card,
  .page-about__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .page-about__hero-section {
    padding-top: 10px !important; /* body đã承担 --header-offset，此处禁止 var(--header-offset) */
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: 1.8rem;
  }
  .page-about__section-title {
    font-size: 1.6rem;
  }
  .page-about__cta-description {
    font-size: 1rem;
  }
}