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

:root {
  --page-about-primary-color: #26A9E0;
  --page-about-secondary-color: #FFFFFF;
  --page-about-text-dark: #333333;
  --page-about-text-light: #ffffff;
  --page-about-bg-light: #f5f5f5;
  --page-about-bg-dark: #26A9E0;
  --page-about-login-color: #EA7C07;
}

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--page-about-text-dark); /* Mặc định chữ tối cho nền sáng */
  background-color: var(--page-about-bg-light);
}

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

.page-about__section-title {
  font-size: 2.5em;
  font-weight: bold;
  color: var(--page-about-primary-color);
  text-align: center;
  margin-bottom: 40px;
  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-color: var(--page-about-primary-color);
  border-radius: 2px;
}

.page-about__sub-title {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--page-about-primary-color);
  margin-top: 30px;
  margin-bottom: 20px;
}

.page-about__text-block {
  font-size: 1.1em;
  margin-bottom: 20px;
  line-height: 1.7;
}

.page-about__highlight {
  color: var(--page-about-primary-color);
  font-weight: bold;
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 60px 20px;
  padding-top: 10px; /* Nhỏ gọn để tránh đệm kép với body */
  background-color: var(--page-about-bg-dark);
  color: var(--page-about-text-light);
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 40px;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-about__hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-about__main-title {
  font-size: clamp(2em, 4vw, 3.2em); /* H1 font size with clamp */
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--page-about-text-light);
}

.page-about__intro-description {
  font-size: 1.2em;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: var(--page-about-text-light);
}

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

.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;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background-color: var(--page-about-login-color);
  color: var(--page-about-text-light);
  border: 2px solid var(--page-about-login-color);
}

.page-about__btn-primary:hover {
  background-color: darken(var(--page-about-login-color), 10%);
  border-color: darken(var(--page-about-login-color), 10%);
  transform: translateY(-2px);
}

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

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

/* Introduction Section */
.page-about__introduction-section {
  padding: 60px 0;
  background-color: var(--page-about-bg-light);
  color: var(--page-about-text-dark);
}

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

.page-about__card {
  background-color: var(--page-about-secondary-color);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  color: var(--page-about-text-dark);
}

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

.page-about__values-section {
  margin-top: 60px;
}

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

.page-about__values-list li {
  background-color: var(--page-about-secondary-color);
  padding: 15px 20px;
  margin-bottom: 10px;
  border-left: 5px solid var(--page-about-primary-color);
  border-radius: 5px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Why Choose Us Section */
.page-about__why-choose-us {
  padding: 60px 0;
  background-color: var(--page-about-bg-dark);
  color: var(--page-about-text-light);
}

.page-about__why-choose-us .page-about__section-title {
  color: var(--page-about-text-light);
}

.page-about__why-choose-us .page-about__section-title::after {
  background-color: var(--page-about-text-light);
}

.page-about__why-choose-us .page-about__card {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--page-about-text-light);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-about__why-choose-us .page-about__card-title {
  color: var(--page-about-text-light);
}

.page-about__why-choose-us .page-about__highlight {
  color: var(--page-about-secondary-color);
}

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

.page-about__card--feature {
  text-align: center;
}

.page-about__content-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin-top: 50px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.page-about__image-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* Game Offerings Section */
.page-about__game-offerings {
  padding: 60px 0;
  background-color: var(--page-about-bg-light);
  color: var(--page-about-text-dark);
}

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

.page-about__game-card {
  background-color: var(--page-about-secondary-color);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-about__game-title {
  font-size: 1.4em;
  font-weight: bold;
  color: var(--page-about-primary-color);
  margin-bottom: 15px;
}

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

.page-about__game-title a:hover {
  text-decoration: underline;
}

.page-about__game-card p {
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-about__btn-link {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-link:hover {
  background-color: darken(var(--page-about-primary-color), 10%);
}

/* Security Commitment Section */
.page-about__security-commitment {
  padding: 60px 0;
  background-color: var(--page-about-bg-dark);
  color: var(--page-about-text-light);
}

.page-about__security-commitment .page-about__section-title {
  color: var(--page-about-text-light);
}

.page-about__security-commitment .page-about__section-title::after {
  background-color: var(--page-about-text-light);
}

.page-about__security-commitment .page-about__highlight {
  color: var(--page-about-secondary-color);
}

/* Our Team Section */
.page-about__our-team {
  padding: 60px 0;
  background-color: var(--page-about-bg-light);
  color: var(--page-about-text-dark);
}

/* Community Engagement Section */
.page-about__community-engagement {
  padding: 60px 0;
  background-color: var(--page-about-bg-dark);
  color: var(--page-about-text-light);
}

.page-about__community-engagement .page-about__section-title {
  color: var(--page-about-text-light);
}

.page-about__community-engagement .page-about__section-title::after {
  background-color: var(--page-about-text-light);
}

.page-about__community-engagement .page-about__highlight {
  color: var(--page-about-secondary-color);
}

/* Future Vision Section */
.page-about__future-vision {
  padding: 60px 0;
  background-color: var(--page-about-bg-light);
  color: var(--page-about-text-dark);
}

/* Final CTA Section */
.page-about__cta-final {
  padding: 60px 0;
  background-color: var(--page-about-bg-dark);
  color: var(--page-about-text-light);
}

.page-about__cta-final .page-about__section-title {
  color: var(--page-about-text-light);
}

.page-about__cta-final .page-about__section-title::after {
  background-color: var(--page-about-text-light);
}

.page-about__cta-final .page-about__highlight {
  color: var(--page-about-secondary-color);
}

/* FAQ Section */
.page-about__faq-section {
  padding: 60px 0;
  background-color: var(--page-about-bg-light);
  color: var(--page-about-text-dark);
}

.page-about__faq-list {
  margin-top: 40px;
}

.page-about__faq-item {
  background-color: var(--page-about-secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-about__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.2em;
  font-weight: bold;
  color: var(--page-about-primary-color);
  cursor: pointer;
  list-style: none; /* Hide default marker */
}

.page-about__faq-item summary::-webkit-details-marker {
  display: none; /* Hide default marker for Webkit */
}

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

.page-about__faq-toggle {
  font-size: 1.5em;
  font-weight: normal;
  margin-left: 15px;
  color: var(--page-about-primary-color);
}

.page-about__faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 1.05em;
  color: var(--page-about-text-dark);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__main-title {
    font-size: clamp(1.8em, 5vw, 2.8em);
  }

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

  .page-about__intro-description {
    font-size: 1.1em;
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important;
  }
  
  .page-about__hero-image-wrapper {
    margin-bottom: 30px;
  }

  .page-about__main-title {
    font-size: clamp(1.5em, 6vw, 2.5em);
  }

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

  .page-about__sub-title {
    font-size: 1.5em;
  }

  .page-about__text-block {
    font-size: 1em;
  }

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

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .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__container {
    padding: 0 15px;
  }
  
  .page-about__introduction-section,
  .page-about__why-choose-us,
  .page-about__game-offerings,
  .page-about__security-commitment,
  .page-about__our-team,
  .page-about__community-engagement,
  .page-about__future-vision,
  .page-about__cta-final,
  .page-about__faq-section {
    padding: 40px 0;
  }

  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-about__hero-image-wrapper,
  .page-about__mission-vision-grid,
  .page-about__features-grid,
  .page-about__games-grid,
  .page-about__card,
  .page-about__game-card,
  .page-about__faq-item,
  .page-about__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; /* Ensure no overflow */
  }
  
  /* Ensure all content area images are responsive */
  .page-about__content-area img,
  .page-about__introduction-section img,
  .page-about__why-choose-us img,
  .page-about__game-offerings img,
  .page-about__security-commitment img,
  .page-about__our-team img,
  .page-about__community-engagement img,
  .page-about__future-vision img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-about__faq-item summary {
    font-size: 1.1em;
    padding: 15px;
  }
  
  .page-about__faq-answer {
    padding: 0 15px 15px 15px;
    font-size: 1em;
  }
}