/* 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: #26A9E0;
  --page-about-secondary-color: #FFFFFF;
  --page-about-login-color: #EA7C07;
  --page-about-text-dark: #333333;
  --page-about-text-light: #ffffff;
  --page-about-bg-light: #f8f9fa;
  --page-about-bg-dark: #1a1a1a;
  --page-about-border-color: #e0e0e0;
}

.page-about {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--page-about-text-dark); /* Default text color for light backgrounds */
  background-color: var(--page-about-bg-light); /* Default light background */
}

/* Common container and section styles */
.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}

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

.page-about__light-bg {
  background-color: var(--page-about-bg-light);
  color: var(--page-about-text-dark);
}

.page-about__dark-section {
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
}

.page-about__heading {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.page-about__sub-heading {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 15px;
  font-weight: 600;
  line-height: 1.3;
}

.page-about__tagline {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__text-block {
  font-size: 1rem;
  margin-bottom: 20px;
  text-align: justify;
}

.page-about__text-block:last-of-type {
  margin-bottom: 0;
}

/* Hero Section */
.page-about__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 10px 0 60px 0; /* Small top padding, larger bottom for content below image */
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  margin-bottom: 30px; /* Space between image and text */
}

.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(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
  color: var(--page-about-text-light);
}

/* Buttons */
.page-about__cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin-top: 30px;
}

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

.page-about__btn-primary,
.page-about__btn-secondary,
.page-about__btn-tertiary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%; /* Ensure buttons are responsive */
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
}

.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);
}

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

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

/* Content Grid for sections */
.page-about__content-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  text-align: left;
}

.page-about__content-grid--reverse {
  flex-direction: row-reverse;
}

.page-about__grid-item {
  flex: 1;
  min-width: 300px;
}

.page-about__grid-item.page-about__image-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about__image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  display: block;
  max-width: 100%;
}

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

.page-about__feature-card {
  background-color: rgba(255, 255, 255, 0.15); /* Slightly transparent white for dark section */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
}

.page-about__dark-section .page-about__feature-card {
  color: var(--page-about-text-light);
}

.page-about__feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--page-about-text-light);
}

.page-about__feature-description {
  font-size: 1rem;
  color: var(--page-about-text-light);
}

/* Responsible Gaming List */
.page-about__responsible-list {
  list-style: none;
  padding: 0;
  margin: 40px auto 0 auto;
  max-width: 800px;
  text-align: left;
}

.page-about__responsible-list li {
  background-color: var(--page-about-secondary-color);
  padding: 20px;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  font-size: 1.05rem;
  color: var(--page-about-text-dark);
}

.page-about__responsible-list li strong {
  color: var(--page-about-primary-color);
}

/* FAQ Section */
.page-about__faq-section {
  padding-bottom: 80px;
}

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

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

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--page-about-text-dark);
  cursor: pointer;
  background-color: var(--page-about-secondary-color);
  border-bottom: 1px solid transparent; /* default */
  transition: border-bottom-color 0.3s ease;
}

.page-about__faq-item[open] .page-about__faq-question {
  border-bottom-color: var(--page-about-border-color);
}

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

.page-about__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  margin-left: 15px;
  color: var(--page-about-primary-color);
}

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

.page-about__faq-item summary {
  list-style: none;
}

.page-about__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1rem;
  color: var(--page-about-text-dark);
  text-align: justify;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .page-about__content-grid {
    flex-direction: column;
  }
  .page-about__content-grid--reverse {
    flex-direction: column;
  }
  .page-about__grid-item {
    min-width: unset;
    width: 100%;
  }
}

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

  .page-about__section {
    padding: 40px 0;
  }

  .page-about__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__hero-section {
    padding-top: 10px !important; /* body already handles --header-offset */
    padding-bottom: 40px;
  }

  .page-about__main-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  .page-about__tagline {
    font-size: clamp(1rem, 4vw, 1.2rem);
    margin-bottom: 20px;
  }

  .page-about__heading {
    font-size: clamp(1.8rem, 6vw, 2.2rem);
  }

  .page-about__sub-heading {
    font-size: clamp(1.3rem, 5vw, 1.8rem);
  }

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

  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about__btn-tertiary,
  .page-about a[class*="button"],
  .page-about a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

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

  .page-about__hero-image-wrapper,
  .page-about__grid-item.page-about__image-wrapper,
  .page-about__features-grid,
  .page-about__responsible-list,
  .page-about__faq-list,
  .page-about__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

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

  .page-about__responsible-list li,
  .page-about__faq-question,
  .page-about__faq-answer {
    padding-left: 20px;
    padding-right: 20px;
  }
  .page-about__faq-question {
    font-size: 1rem;
  }
}