/* 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-primary-color: #11A84E;
  --page-about-secondary-color: #22C768;
  --page-about-text-main: #F2FFF6;
  --page-about-text-secondary: #A7D9B8;
  --page-about-background-color: #08160F;
  --page-about-card-bg: #11271B;
  --page-about-border-color: #2E7A4E;
  --page-about-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --page-about-glow-color: #57E38D;
  --page-about-gold-color: #F2C14E;
  --page-about-divider-color: #1E3A2A;
  --page-about-deep-green-color: #0A4B2C;
}

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

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

.page-about__section {
  padding: 60px 0;
  text-align: center;
}

.page-about__dark-bg {
  background-color: var(--page-about-deep-green-color);
  color: var(--page-about-text-main);
}

.page-about__background-color {
  background-color: var(--page-about-background-color);
  color: var(--page-about-text-main);
}

.page-about__card-bg {
  background-color: var(--page-about-card-bg);
  color: var(--page-about-text-main);
}

.page-about__light-text {
  color: var(--page-about-text-main);
}

.page-about__section-title {
  font-size: 2.5em;
  margin-bottom: 30px;
  color: var(--page-about-gold-color);
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-about h1.page-about__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--page-about-gold-color);
  max-width: 900px;
  margin: 0 auto 20px auto;
  font-size: clamp(2em, 4vw, 3.2em);
}

.page-about__description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--page-about-text-secondary);
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0; /* body đã xử lý padding-top cho header */
  overflow: hidden;
}

.page-about__image-wrapper {
  width: 100%;
  max-height: 700px; /* Giới hạn chiều cao cho ảnh hero */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
}

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

.page-about__hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 20px;
}

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

.page-about__cta-buttons--center {
  margin-top: 40px;
}

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  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-button-gradient);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-about__btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 5px 15px rgba(42, 209, 111, 0.4);
}

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

.page-about__btn-secondary:hover {
  background: var(--page-about-primary-color);
  color: #ffffff;
  box-shadow: 0 5px 15px rgba(17, 168, 78, 0.4);
}

.page-about__btn-primary--large, .page-about__btn-secondary--large {
  padding: 18px 35px;
  font-size: 1.1em;
}

/* Intro Section */
.page-about__intro-section p {
  max-width: 900px;
  margin: 20px auto;
  font-size: 1.05em;
  color: var(--page-about-text-secondary);
}

/* Products Section */
.page-about__products-section .page-about__section-title {
  margin-bottom: 40px;
}

.page-about__product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__product-card {
  background-color: var(--page-about-card-bg);
  border-radius: 12px;
  overflow: hidden;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
}

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

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

.page-about__card-text {
  font-size: 0.95em;
  color: var(--page-about-text-secondary);
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-about__product-card .page-about__btn-primary {
  width: auto;
  align-self: flex-start;
  padding: 10px 20px;
  font-size: 0.9em;
}

/* Commitment Section */
.page-about__commitment-section p {
  max-width: 900px;
  margin: 20px auto;
  font-size: 1.05em;
  color: var(--page-about-text-secondary);
}

/* Promotions Section */
.page-about__promotions-section .page-about__section-title {
  margin-bottom: 40px;
}

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

.page-about__promo-card {
  background-color: var(--page-about-card-bg);
  border-radius: 12px;
  overflow: hidden;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
}

.page-about__promo-card .page-about__card-image {
  height: 180px;
}

.page-about__promo-card .page-about__card-title {
  font-size: 1.4em;
  color: var(--page-about-gold-color);
}

.page-about__promo-card .page-about__card-text {
  font-size: 0.9em;
  color: var(--page-about-text-secondary);
  flex-grow: 1;
}

.page-about__text-secondary {
  color: var(--page-about-text-secondary);
  margin-top: 30px;
  display: block;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* Support Section */
.page-about__support-section p {
  max-width: 900px;
  margin: 20px auto;
  font-size: 1.05em;
  color: var(--page-about-text-secondary);
}

.page-about__contact-list {
  list-style: none;
  padding: 0;
  margin: 30px auto;
  max-width: 700px;
  text-align: left;
}

.page-about__contact-list li {
  background-color: var(--page-about-card-bg);
  border: 1px solid var(--page-about-border-color);
  margin-bottom: 15px;
  padding: 15px 20px;
  border-radius: 8px;
  font-size: 1.1em;
  color: var(--page-about-text-main);
  display: flex;
  align-items: center;
}

.page-about__contact-list li strong {
  color: var(--page-about-gold-color);
  margin-right: 10px;
}

/* FAQ Section */
.page-about__faq-list {
  max-width: 900px;
  margin: 40px auto 0 auto;
  text-align: left;
}

.page-about__faq-item {
  background-color: var(--page-about-card-bg);
  border: 1px solid var(--page-about-border-color);
  border-radius: 12px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.15em;
  font-weight: bold;
  color: var(--page-about-gold-color);
  cursor: pointer;
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

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

.page-about__faq-item[open] .page-about__faq-question {
  background-color: var(--page-about-primary-color);
  color: #ffffff;
}

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

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

.page-about__faq-item[open] .page-about__faq-toggle {
  color: #ffffff;
}

.page-about__faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 1em;
  color: var(--page-about-text-secondary);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-about__faq-item[open] .page-about__faq-answer {
  max-height: 500px; /* Adjust as needed */
  padding: 0 20px 20px 20px;
}

.page-about__faq-answer p {
  margin-bottom: 1em;
  color: var(--page-about-text-secondary);
}

/* CTA Bottom Section */
.page-about__cta-bottom {
  padding: 80px 0;
  background-color: var(--page-about-deep-green-color);
}

.page-about__cta-container {
  max-width: 900px;
}

.page-about__cta-title {
  font-size: 2.8em;
  color: var(--page-about-gold-color);
  margin-bottom: 25px;
  font-weight: bold;
}

.page-about__cta-text {
  font-size: 1.2em;
  color: var(--page-about-text-secondary);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__section-title {
    font-size: 2em;
  }
  .page-about h1.page-about__main-title {
    font-size: clamp(1.8em, 5vw, 2.8em);
  }
  .page-about__description {
    font-size: 1em;
  }
  .page-about__product-grid, .page-about__promotion-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-about__container {
    padding: 0 15px;
  }
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }
  .page-about__image-wrapper {
    margin-bottom: 30px;
  }
  .page-about h1.page-about__main-title {
    font-size: clamp(1.5em, 6vw, 2.2em);
    margin-bottom: 15px;
  }
  .page-about__description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }
  .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;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__product-grid, .page-about__promotion-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-about__card-image {
    height: 180px;
  }
  .page-about__promo-card .page-about__card-image {
    height: 150px;
  }
  .page-about__contact-list {
    margin: 20px auto;
    padding: 0 15px;
  }
  .page-about__contact-list li {
    font-size: 1em;
    padding: 12px 15px;
  }
  .page-about__faq-list {
    margin-top: 30px;
    padding: 0 15px;
  }
  .page-about__faq-question {
    font-size: 1em;
    padding: 15px;
  }
  .page-about__faq-answer {
    padding: 0 15px 15px 15px;
    font-size: 0.95em;
  }
  .page-about__cta-bottom {
    padding: 60px 0;
  }
  .page-about__cta-title {
    font-size: 2em;
    margin-bottom: 15px;
  }
  .page-about__cta-text {
    font-size: 1em;
    margin-bottom: 30px;
  }
  /* 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 {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden;
  }
  .page-about__hero-content, .page-about__cta-container {
    padding-left: 15px;
    padding-right: 15px;
  }
}

@media (max-width: 480px) {
  .page-about__section-title {
    font-size: 1.8em;
  }
  .page-about__cta-title {
    font-size: 1.8em;
  }
}