/* style/about.css */

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

.page-about {
  background-color: var(--page-about-bg-color);
  color: var(--page-about-text-main-color);
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  padding-bottom: 50px; /* Add some padding to the bottom of the main content */
}

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

.page-about__section-title {
  font-size: clamp(1.8rem, 2.5vw, 2.8rem);
  color: var(--page-about-text-main-color);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
  font-weight: 700;
}

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

.page-about__description {
  font-size: 1.1rem;
  color: var(--page-about-text-secondary-color);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 30px auto;
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0;
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  position: relative;
  margin-bottom: 30px;
}

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

.page-about__hero-content {
  max-width: 900px;
  text-align: center;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  color: var(--page-about-text-main-color);
  margin-bottom: 20px;
  font-weight: 800;
  line-height: 1.2;
}

.page-about__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

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

.page-about__btn-primary {
  background: var(--page-about-btn-gradient);
  color: #ffffff;
  border: none;
}

.page-about__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

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

.page-about__btn-secondary:hover {
  background: var(--page-about-glow-color);
  color: var(--page-about-bg-color);
  transform: translateY(-2px);
}

.page-about__btn-large {
  min-width: 200px;
  padding: 18px 35px;
  font-size: 1.2rem;
}

/* Mission Vision Section */
.page-about__mission-vision-section {
  padding: 80px 0;
  background-color: var(--page-about-deep-green-color);
}

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

.page-about__card {
  background-color: var(--page-about-card-bg-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease;
  border: 1px solid var(--page-about-border-color);
}

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

.page-about__card-title {
  font-size: 1.6rem;
  color: var(--page-about-gold-color);
  margin-bottom: 15px;
  font-weight: 700;
}

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

/* Values Section */
.page-about__values-section {
  padding: 80px 0;
}

.page-about__values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-about__value-item {
  text-align: center;
  padding: 20px;
  background-color: var(--page-about-card-bg-color);
  border-radius: 12px;
  border: 1px solid var(--page-about-border-color);
}

.page-about__value-icon {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  object-fit: cover;
}

.page-about__value-title {
  font-size: 1.4rem;
  color: var(--page-about-gold-color);
  margin-bottom: 10px;
  font-weight: 600;
}

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

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

.page-about__why-choose-us-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 50px;
  align-items: center;
}

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

.page-about__why-choose-us-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  object-fit: cover;
}

.page-about__text-block {
  padding: 20px 0;
}

.page-about__why-choose-us-list {
  list-style: none;
  padding: 0;
  margin: 0 0 30px 0;
}

.page-about__why-choose-us-list li {
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="%2357E38D"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"/></svg>') no-repeat left center;
  background-size: 20px;
  padding-left: 30px;
  margin-bottom: 15px;
  font-size: 1.05rem;
  color: var(--page-about-text-main-color);
}

.page-about__why-choose-us-list li strong {
  color: var(--page-about-gold-color);
}

/* Milestones Section */
.page-about__milestones-section {
  padding: 80px 0;
}

.page-about__timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 0;
}

.page-about__timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  height: 100%;
  background-color: var(--page-about-divider-color);
  transform: translateX(-50%);
}

.page-about__timeline-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 60px;
  position: relative;
}

.page-about__timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.page-about__timeline-item:nth-child(odd) .page-about__timeline-content {
  text-align: right;
  padding-right: 60px;
}

.page-about__timeline-item:nth-child(even) .page-about__timeline-content {
  text-align: left;
  padding-left: 60px;
}

.page-about__timeline-item::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background-color: var(--page-about-glow-color);
  border-radius: 50%;
  border: 4px solid var(--page-about-bg-color);
  z-index: 1;
}

.page-about__timeline-date {
  width: 50%;
  padding: 0 20px;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--page-about-gold-color);
  display: flex;
  align-items: center;
}

.page-about__timeline-item:nth-child(odd) .page-about__timeline-date {
  justify-content: flex-start;
}

.page-about__timeline-item:nth-child(even) .page-about__timeline-date {
  justify-content: flex-end;
}

.page-about__timeline-content {
  width: 50%;
  padding: 0 20px;
}

.page-about__timeline-content h3 {
  font-size: 1.5rem;
  color: var(--page-about-text-main-color);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-about__timeline-content p {
  font-size: 1rem;
  color: var(--page-about-text-secondary-color);
}

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

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

.page-about__faq-item {
  background-color: var(--page-about-card-bg-color);
  border: 1px solid var(--page-about-border-color);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-about__faq-item[open] {
  background-color: var(--page-about-deep-green-color);
  border-color: var(--page-about-glow-color);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--page-about-text-main-color);
  cursor: pointer;
  user-select: none;
  list-style: none;
}

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

.page-about__faq-qtext {
  flex-grow: 1;
  margin-right: 15px;
}

.page-about__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  color: var(--page-about-glow-color);
  transition: transform 0.3s ease;
}

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

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

.page-about__faq-answer p {
  margin-bottom: 0;
}

.page-about__faq-answer a {
  color: var(--page-about-glow-color);
  text-decoration: underline;
}

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

.page-about__cta-section .page-about__section-title,
.page-about__cta-section .page-about__description {
  margin-bottom: 30px;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .page-about__timeline::before {
    left: 20px;
  }

  .page-about__timeline-item {
    flex-direction: column !important;
    align-items: flex-start;
  }

  .page-about__timeline-item::before {
    left: 20px;
    transform: translateX(0);
  }

  .page-about__timeline-date {
    width: 100%;
    padding-left: 60px;
    justify-content: flex-start !important;
    margin-bottom: 10px;
  }

  .page-about__timeline-content {
    width: 100%;
    padding-left: 60px !important;
    text-align: left !important;
  }

  .page-about__timeline-item:nth-child(odd) .page-about__timeline-content {
    padding-right: 20px;
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-about__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

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

  .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;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    margin-bottom: 30px;
  }

  .page-about__content-grid,
  .page-about__values-grid,
  .page-about__why-choose-us-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 15px;
  }

  .page-about__card,
  .page-about__value-item {
    padding: 25px;
  }

  .page-about__why-choose-us-image {
    max-width: 100%;
    padding: 0 15px;
  }

  .page-about__why-choose-us-list li {
    font-size: 0.95rem;
  }

  .page-about__timeline {
    padding: 20px 0;
  }

  .page-about__timeline::before {
    left: 15px;
  }

  .page-about__timeline-item::before {
    left: 15px;
  }

  .page-about__timeline-date {
    padding-left: 45px;
    font-size: 1.5rem;
  }

  .page-about__timeline-content {
    padding-left: 45px !important;
  }

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

  .page-about__faq-toggle {
    font-size: 1.5rem;
  }

  .page-about__faq-answer {
    font-size: 0.95rem;
    padding: 0 20px 15px 20px;
  }

  /* Mobile image responsiveness */
  .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,
  .page-about__hero-image-wrapper,
  .page-about__image-block,
  .page-about__cta-buttons,
  .page-about__button-group,
  .page-about__btn-container,
  .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;
  }

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

  .page-about__video-section {
    padding-top: 10px !important; /* body đã có --header-offset, đây chỉ là padding nội dung */
  }
}