/* style/about.css */

:root {
  --page-about-primary-color: #11A84E;
  --page-about-secondary-color: #22C768;
  --page-about-background-color: #08160F;
  --page-about-card-background: #11271B;
  --page-about-text-main: #F2FFF6;
  --page-about-text-secondary: #A7D9B8;
  --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-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.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__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* body đã padding-top: var(--header-offset) */
  text-align: center;
  overflow: hidden;
  color: var(--page-about-text-main);
  background-color: var(--page-about-deep-green-color);
}

.page-about__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.3;
  overflow: hidden;
}

.page-about__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(50%); /* Allowed for subtle mood, not color change */
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

.page-about__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--page-about-gold-color);
  margin-bottom: 20px;
  font-size: clamp(2.2rem, 4vw, 3.5rem);
}

.page-about__description {
  font-size: 1.15rem;
  margin-bottom: 30px;
  color: var(--page-about-text-secondary);
}

.page-about__section {
  padding: 80px 0;
  background-color: var(--page-about-background-color);
}

.page-about__section-title {
  font-size: 2.5rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: var(--page-about-gold-color);
}

.page-about__sub-title {
  font-size: 1.8rem;
  font-weight: bold;
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--page-about-primary-color);
}

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

.page-about__text-block {
  font-size: 1.05rem;
  margin-bottom: 20px;
  color: var(--page-about-text-main);
}

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

.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  margin: 10px;
  border: 2px solid transparent;
}

.page-about__btn-primary {
  background: var(--page-about-button-gradient);
  color: var(--page-about-text-main);
}

.page-about__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

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

.page-about__btn-secondary:hover {
  background: var(--page-about-primary-color);
  color: var(--page-about-text-main);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

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

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

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

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

.page-about__grid-two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-top: 40px;
}

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

.page-about__image-responsive {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  display: block;
  margin: 0 auto;
}

.page-about__values-list,
.page-about__security-features,
.page-about__advantages-list {
  list-style: none;
  padding-left: 0;
  margin-top: 20px;
}

.page-about__list-item {
  position: relative;
  padding-left: 30px;
  margin-bottom: 15px;
  font-size: 1.05rem;
  color: var(--page-about-text-secondary);
}

.page-about__list-item::before {
  content: '✔';
  position: absolute;
  left: 0;
  color: var(--page-about-primary-color);
  font-weight: bold;
}

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

.page-about__game-card {
  background-color: var(--page-about-card-background);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
  padding-bottom: 20px;
  border: 1px solid var(--page-about-border-color);
}

.page-about__game-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  margin-bottom: 15px;
}

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

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

.page-about__game-title a:hover {
  text-decoration: underline;
  color: var(--page-about-glow-color);
}

.page-about__game-description {
  font-size: 0.95rem;
  padding: 0 20px;
  color: var(--page-about-text-secondary);
}

.page-about__cta-buttons {
  text-align: center;
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.page-about__team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
  text-align: center;
}

.page-about__team-member-card {
  background-color: var(--page-about-card-background);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--page-about-border-color);
}

.page-about__team-member-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
  border: 4px solid var(--page-about-primary-color);
}

.page-about__member-name {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--page-about-gold-color);
  margin-bottom: 10px;
}

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

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

.page-about__faq-item {
  background-color: var(--page-about-card-background);
  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: 1.2rem;
  font-weight: bold;
  color: var(--page-about-gold-color);
  cursor: pointer;
  background-color: var(--page-about-deep-green-color);
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

.page-about__faq-question::-webkit-details-marker {
  display: none; /* For details/summary */
}

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

.page-about__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
}

.page-about__faq-answer {
  padding: 20px;
  font-size: 1.05rem;
  color: var(--page-about-text-secondary);
  border-top: 1px solid var(--page-about-border-color);
}

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

.page-about__conclusion-section {
  text-align: center;
  padding-bottom: 80px;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-about__grid-two-columns {
    grid-template-columns: 1fr;
  }

  .page-about__reverse-on-mobile {
    display: flex;
    flex-direction: column-reverse;
  }

  .page-about__main-title {
    font-size: clamp(2rem, 6vw, 3rem);
  }

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

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

  .page-about__games-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-about__section {
    padding: 60px 0;
  }

  .page-about__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important; /* body đã padding-top */
  }

  .page-about__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Images responsiveness */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }

  .page-about__image-responsive,
  .page-about__game-image,
  .page-about__team-member-photo {
    max-width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }

  /* Containers with images/content */
  .page-about__section,
  .page-about__card,
  .page-about__container,
  .page-about__game-card,
  .page-about__team-member-card,
  .page-about__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Buttons responsiveness */
  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about a[class*="button"],
  .page-about a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    margin: 0;
    padding: 12px 20px;
  }

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

  .page-about__hero-content {
    padding: 10px;
  }

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

  .page-about__list-item {
    font-size: 1rem;
  }

  .page-about__faq-question {
    font-size: 1.1rem;
  }

  .page-about__faq-answer {
    font-size: 1rem;
  }

  .page-about__team-member-photo {
    width: 120px;
    height: 120px;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

  .page-about__section-title {
    font-size: 1.8rem;
  }

  .page-about__sub-title {
    font-size: 1.3rem;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    font-size: 1rem;
  }
}