/* style/about.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần thêm padding-top cho main hoặc các section đầu tiên. */

:root {
  --page-about-bg-color: #0D0E12;
  --page-about-card-bg: #17191F;
  --page-about-text-main: #FFF3E6;
  --page-about-main-color: #FF8C1A;
  --page-about-aux-color: #FFA53A;
  --page-about-border-color: #A84F0C;
  --page-about-glow-color: #FFB04D;
  --page-about-deep-orange: #D96800;
  --page-about-button-gradient: linear-gradient(180deg, var(--page-about-aux-color) 0%, var(--page-about-deep-orange) 100%);
}

.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 h1, .page-about h2, .page-about h3, .page-about h4, .page-about h5, .page-about h6 {
  color: var(--page-about-main-color);
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

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

.page-about__container--centered {
  text-align: center;
}

.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles header offset */
  overflow: hidden;
}

.page-about__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.3; /* Slightly transparent to allow text readability */
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 20px;
  background: rgba(0, 0, 0, 0.6); /* Dark overlay for text readability */
  border-radius: 10px;
}

.page-about__main-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  margin-bottom: 20px;
  color: var(--page-about-glow-color);
  text-shadow: 0 0 10px rgba(255, 176, 77, 0.5);
}

.page-about__hero-description {
  font-size: 1.25rem;
  margin-bottom: 30px;
  color: var(--page-about-text-main);
}

.page-about__cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: var(--page-about-button-gradient);
  color: var(--page-about-text-main);
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(255, 140, 26, 0.4);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__cta-button:hover {
  background: linear-gradient(180deg, var(--page-about-deep-orange) 0%, var(--page-about-aux-color) 100%);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 140, 26, 0.6);
}

.page-about__cta-button--large {
  padding: 18px 40px;
  font-size: 1.1rem;
  margin: 10px;
}

.page-about__cta-button--small {
  padding: 10px 20px;
  font-size: 0.9rem;
  margin-top: 15px;
}

.page-about__cta-button--secondary {
  background: none;
  border: 2px solid var(--page-about-main-color);
  color: var(--page-about-main-color);
  box-shadow: none;
}

.page-about__cta-button--secondary:hover {
  background: var(--page-about-main-color);
  color: var(--page-about-text-main);
  box-shadow: 0 4px 15px rgba(255, 140, 26, 0.4);
}

.page-about__section {
  padding: 80px 0;
  border-bottom: 1px solid var(--page-about-border-color);
}

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

.page-about__section-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  text-align: center;
  margin-bottom: 40px;
  color: var(--page-about-main-color);
}

.page-about__section-description {
  font-size: 1.1rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
  color: var(--page-about-text-main);
}

.page-about__sub-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-top: 30px;
  margin-bottom: 20px;
  color: var(--page-about-aux-color);
}

.page-about__content-grid {
  display: flex;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
}

.page-about__content-grid:nth-of-type(even) {
  flex-direction: row-reverse;
}

.page-about__text-block {
  flex: 1;
}

.page-about__image-content {
  flex: 1;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

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

.page-about__list li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 10px;
  color: var(--page-about-text-main);
}

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

.page-about__list--games li::before {
  content: '🎮';
}

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

.page-about__card {
  background-color: var(--page-about-card-bg);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--page-about-border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
  color: var(--page-about-text-main);
}

.page-about__card-title {
  font-size: 1.6rem;
  margin-bottom: 15px;
  color: var(--page-about-aux-color);
}

.page-about__card-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin-top: auto; /* Pushes image to bottom if content above is shorter */
  border-radius: 8px;
  margin-top: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

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

.page-about__commitment-item {
  background-color: var(--page-about-card-bg);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--page-about-border-color);
  color: var(--page-about-text-main);
}

.page-about__commitment-title {
  font-size: 1.8rem;
  margin-bottom: 15px;
  color: var(--page-about-main-color);
}

.page-about__dark-section {
  background: var(--page-about-main-color);
  background: linear-gradient(90deg, var(--page-about-main-color) 0%, var(--page-about-deep-orange) 100%);
  color: #ffffff;
}

.page-about__dark-section .page-about__section-title,
.page-about__dark-section .page-about__section-description {
  color: #ffffff;
}

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

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

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.1rem;
  color: var(--page-about-aux-color);
  position: relative; /* For details/summary marker */
  list-style: none; /* Hide default marker for summary */
}

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

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

.page-about__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--page-about-text-main);
}

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

.page-about__faq-answer .page-about__cta-button--small {
  margin-top: 10px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__content-grid {
    flex-direction: column;
  }
  .page-about__content-grid:nth-of-type(even) {
    flex-direction: column;
  }
  .page-about__image-content {
    order: -1; /* Image appears above text on smaller screens */
    margin-bottom: 30px;
  }
}

@media (max-width: 768px) {
  .page-about {
    font-size: 16px;
    line-height: 1.6;
  }
  .page-about__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important;
  }
  .page-about__hero-content {
    padding: 15px;
  }
  .page-about__main-title {
    font-size: 2rem;
  }
  .page-about__hero-description {
    font-size: 1rem;
  }
  .page-about__cta-button,
  .page-about__cta-button--large,
  .page-about__cta-button--small,
  .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;
    padding-left: 15px;
    padding-right: 15px;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  .page-about__cta-button--large {
    font-size: 1rem;
  }
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__section-title {
    font-size: 2rem;
    margin-bottom: 30px;
  }
  .page-about__section-description {
    font-size: 1rem;
    margin-bottom: 40px;
    padding: 0 15px;
  }
  .page-about__sub-title {
    font-size: 1.4rem;
  }
  .page-about__feature-grid,
  .page-about__commitment-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-about__card,
  .page-about__commitment-item {
    padding: 20px;
  }
  .page-about__card-title {
    font-size: 1.4rem;
  }
  .page-about__card-image,
  .page-about__image-content {
    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-section,
  .page-about__hero-content,
  .page-about__faq-item,
  .page-about__faq-answer,
  .page-about__faq-question {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-about__container {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }
}