/* style/about.css */
/* body đã padding-top: var(--header-offset)；trang này không được viết lại biến đó */

:root {
  --page-about-bg-color: #08160F;
  --page-about-card-bg: #11271B;
  --page-about-text-main: #F2FFF6;
  --page-about-text-secondary: #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: #0A4B2C;
}

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

.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 20px 60px; /* body đã xử lý padding-top, đây chỉ cần một ít */
  text-align: center;
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 700px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-about__hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
  background: var(--page-about-card-bg);
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
  transform: translateY(-50px);
  z-index: 10;
  border: 1px solid var(--page-about-border-color);
}

.page-about__main-title {
  font-size: clamp(2em, 4vw, 3.2em);
  color: var(--page-about-gold-color);
  margin-bottom: 15px;
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.page-about__description {
  font-size: 1.1em;
  color: var(--page-about-text-secondary);
  margin-bottom: 30px;
}

.page-about__btn-primary {
  display: inline-block;
  background: var(--page-about-btn-gradient);
  color: #ffffff;
  padding: 14px 30px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  border: none;
  cursor: pointer;
  max-width: 100%; /* Đảm bảo nút không tràn */
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4), 0 0 15px var(--page-about-glow-color);
}

.page-about__section {
  padding: 60px 20px;
  border-bottom: 1px solid var(--page-about-divider-color);
}

.page-about__section:last-of-type {
  border-bottom: none;
}

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

.page-about__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.8em);
  color: var(--page-about-gold-color);
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
  position: relative;
  padding-bottom: 15px;
}

.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__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.page-about__content-grid--reverse {
  grid-template-columns: 1fr 1fr;
}

.page-about__text-block {
  color: var(--page-about-text-secondary);
}

.page-about__text-block p {
  margin-bottom: 15px;
}

.page-about__sub-title {
  font-size: 1.6em;
  color: var(--page-about-text-main);
  margin-top: 30px;
  margin-bottom: 15px;
}

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

.page-about__list li {
  background: var(--page-about-deep-green);
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 10px;
  border-left: 5px solid var(--page-about-glow-color);
  color: var(--page-about-text-main);
  font-size: 1.05em;
}

.page-about__list li strong {
  color: var(--page-about-gold-color);
}

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

.page-about__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  object-fit: cover;
}

.page-about__description-text {
  font-size: 1.1em;
  color: var(--page-about-text-secondary);
  text-align: center;
  margin-bottom: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

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

.page-about__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4), 0 0 12px var(--page-about-glow-color);
}

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

.page-about__feature-title {
  font-size: 1.4em;
  color: var(--page-about-gold-color);
  margin-bottom: 10px;
}

.page-about__feature-text {
  font-size: 0.95em;
  color: var(--page-about-text-secondary);
  flex-grow: 1;
}

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

.page-about__icon-list {
  list-style: none;
  padding: 0;
}

.page-about__icon-list li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 25px;
  padding: 15px;
  background: var(--page-about-deep-green);
  border-radius: 8px;
  border-left: 5px solid var(--page-about-glow-color);
}

.page-about__icon-list li:last-child {
  margin-bottom: 0;
}

.page-about__list-title {
  font-size: 1.4em;
  color: var(--page-about-gold-color);
  margin-bottom: 8px;
}

.page-about__icon-list li p {
  font-size: 1em;
  color: var(--page-about-text-secondary);
  margin-bottom: 0;
}

.page-about__faq-section {
  padding: 60px 20px;
  border-bottom: 1px solid var(--page-about-divider-color);
}

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

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

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.2em;
  font-weight: bold;
  color: var(--page-about-text-main);
  cursor: pointer;
  background: var(--page-about-deep-green);
  border-bottom: 1px solid var(--page-about-border-color);
  list-style: none; /* For details/summary */
}

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

.page-about__faq-question:hover {
  background: var(--page-about-deep-green);
}

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

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

.page-about__faq-answer {
  padding: 20px;
  padding-top: 0;
  color: var(--page-about-text-secondary);
  font-size: 1em;
}

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

.page-about__faq-link {
  color: var(--page-about-glow-color);
  text-decoration: underline;
  transition: color 0.3s ease;
}

.page-about__faq-link:hover {
  color: var(--page-about-gold-color);
}

.page-about__cta-bottom {
  text-align: center;
  padding-top: 80px;
  padding-bottom: 80px;
  background: var(--page-about-deep-green);
}

.page-about__btn-large {
  padding: 18px 40px;
  font-size: 1.2em;
  border-radius: 35px;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .page-about__hero-content {
    transform: translateY(-30px);
    padding: 15px;
  }

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

  .page-about__content-grid--reverse {
    grid-template-columns: 1fr;
  }

  .page-about__content-grid--reverse .page-about__image-block {
    order: -1;
  }
}

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

  .page-about__hero-section {
    padding: 10px 15px 40px;
  }

  .page-about__hero-content {
    transform: translateY(-20px);
    padding: 15px;
  }

  .page-about__main-title {
    font-size: 2em;
  }

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

  .page-about__btn-primary {
    padding: 12px 25px;
    font-size: 0.95em;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-about__section {
    padding: 40px 15px;
  }

  .page-about__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-about__sub-title {
    font-size: 1.4em;
  }

  .page-about__description-text {
    font-size: 0.95em;
  }

  .page-about__features-grid {
    gap: 20px;
  }

  .page-about__feature-card {
    padding: 20px;
  }

  .page-about__feature-image {
    height: 180px;
  }

  .page-about__feature-title {
    font-size: 1.2em;
  }

  .page-about__feature-text {
    font-size: 0.9em;
  }

  .page-about__icon-list li {
    padding: 12px;
  }

  .page-about__list-title {
    font-size: 1.2em;
  }

  .page-about__faq-question {
    padding: 15px;
    font-size: 1.1em;
  }

  .page-about__faq-answer {
    padding: 15px;
    font-size: 0.95em;
  }

  /* Force responsive images */
  .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__features-grid,
  .page-about__feature-card,
  .page-about__cta-wrapper,
  .page-about__button-group,
  .page-about__btn-container,
  .page-about__faq-list,
  .page-about__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important; /* Ensure no overflow */
  }

  .page-about__cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .page-about__cta-bottom {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .page-about__btn-large {
    font-size: 1em;
    padding: 15px 30px;
  }
}