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

/* body đã có padding-top từ shared.css, không lặp lại ở đây */
.page-about {
  color: var(--color-text-main); /* Deep green background, so light text */
  background-color: var(--color-background);
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
}

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

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

/* Hero Section */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 60px;
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 700px;
  overflow: hidden;
  position: relative;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: center;
  min-height: 400px; /* Ensure minimum height */
}

.page-about__hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin-top: -100px; /* Pull content up over image slightly for visual flow */
  background-color: rgba(17, 39, 27, 0.9); /* Card BG with transparency */
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--color-border);
}

.page-about__hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-about__hero-description {
  font-size: 1.15rem;
  color: var(--color-text-main);
  margin-bottom: 30px;
}

.page-about__cta-button {
  display: inline-block;
  background: var(--button-gradient);
  color: var(--color-text-main);
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__cta-button:hover {
  transform: translateY(-3px);
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%); /* Invert gradient on hover */
}

/* Section Titles */
.page-about__section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-gold);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.page-about__section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--color-secondary);
  margin: 15px auto 0;
  border-radius: 2px;
}

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

/* Mission & Vision */
.page-about__mission-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.page-about__mission-card, .page-about__vision-card {
  background-color: var(--color-card-bg);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
}

.page-about__card-image {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

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

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

/* Why Choose Us */
.page-about__dark-section {
  background-color: var(--color-deep-green);
  color: var(--color-text-main);
}

.page-about__dark-section .page-about__section-title {
  color: var(--color-gold);
}

.page-about__dark-section .page-about__section-description {
  color: var(--color-text-secondary);
}

.page-about__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-about__feature-card {
  background-color: var(--color-card-bg);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease;
}

.page-about__feature-card:hover {
  transform: translateY(-5px);
}

.page-about__feature-icon {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 8px rgba(87, 227, 141, 0.5)); /* Subtle glow */
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-about__feature-title {
  font-size: 1.5rem;
  color: var(--color-gold);
  margin-bottom: 10px;
}

.page-about__feature-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

/* History Timeline */
.page-about__history-timeline {
  position: relative;
  max-width: 900px;
  margin: 60px auto 0 auto;
  padding-left: 20px;
  border-left: 2px solid var(--color-divider);
}

.page-about__timeline-item {
  margin-bottom: 40px;
  position: relative;
  padding-left: 40px;
}

.page-about__timeline-item::before {
  content: '';
  position: absolute;
  left: -11px;
  top: 5px;
  width: 20px;
  height: 20px;
  background: var(--color-secondary);
  border-radius: 50%;
  border: 3px solid var(--color-background);
}

.page-about__timeline-year {
  font-size: 1.6rem;
  color: var(--color-gold);
  margin-bottom: 10px;
}

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

.page-about__history-summary {
  font-size: 1.1rem;
  color: var(--color-text-main);
  text-align: center;
  margin-top: 60px;
}

/* Responsible Gaming */
.page-about__responsible-content {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.page-about__responsible-text {
  flex: 1;
  min-width: 300px;
}

.page-about__responsible-text p {
  margin-bottom: 20px;
  color: var(--color-text-main);
}

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

.page-about__responsible-text li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 10px;
  color: var(--color-text-secondary);
}

.page-about__responsible-text li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: bold;
}

.page-about__responsible-image-wrapper {
  flex: 1;
  min-width: 300px;
  text-align: center;
}

.page-about__responsible-image {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
  margin: 0 auto;
}

.page-about__btn-secondary {
  background: none;
  border: 2px solid var(--color-secondary);
  color: var(--color-secondary);
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease;
  display: inline-block;
  margin-top: 20px;
}

.page-about__btn-secondary:hover {
  background-color: var(--color-secondary);
  color: var(--color-background);
}

/* FAQ */
.page-about__faq-list {
  max-width: 900px;
  margin: 50px auto 0 auto;
}

.page-about__faq-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-gold);
  cursor: pointer;
  background-color: var(--color-deep-green);
  border-bottom: 1px solid var(--color-border);
  list-style: none; /* For details/summary */
}

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

.page-about__faq-toggle {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-secondary);
  margin-left: 20px;
  transition: transform 0.3s ease;
}

.page-about__faq-item[open] .page-about__faq-toggle {
  transform: rotate(45deg);
}

.page-about__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-divider);
}

/* CTA Section */
.page-about__cta-section {
  text-align: center;
  padding: 80px 0;
  background-color: var(--color-deep-green);
}

.page-about__cta-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--color-gold);
  margin-bottom: 20px;
}

.page-about__cta-description {
  font-size: 1.2rem;
  color: var(--color-text-main);
  max-width: 800px;
  margin: 0 auto 40px auto;
}

.page-about__btn-primary {
  background: var(--button-gradient);
  color: var(--color-text-main);
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  margin: 0 10px 20px 10px; /* Add margin for spacing */
}

.page-about__btn-primary:hover {
  transform: translateY(-3px);
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__hero-content {
    margin-top: -80px;
    padding: 30px;
  }
  .page-about__mission-vision-grid {
    grid-template-columns: 1fr;
  }
  .page-about__responsible-content {
    flex-direction: column;
    text-align: center;
  }
  .page-about__responsible-image-wrapper {
    order: -1; /* Image above text on smaller screens */
    margin-bottom: 30px;
  }
}

@media (max-width: 768px) {
  .page-about__hero-content {
    margin-top: -60px;
    padding: 25px;
  }
  .page-about__hero-title {
    font-size: 2rem;
  }
  .page-about__hero-description {
    font-size: 1rem;
  }
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__section-title {
    font-size: 1.8rem;
  }
  .page-about__section-description {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }
  .page-about__features-grid {
    grid-template-columns: 1fr;
  }
  .page-about__history-timeline {
    padding-left: 0;
    border-left: none;
  }
  .page-about__timeline-item {
    padding-left: 0;
    text-align: center;
    border-bottom: 1px solid var(--color-divider);
    padding-bottom: 20px;
    margin-bottom: 20px;
  }
  .page-about__timeline-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
  }
  .page-about__timeline-item::before {
    display: none;
  }
  .page-about__responsible-text li {
    text-align: left;
  }
  .page-about__faq-question {
    font-size: 1.1rem;
    padding: 15px 20px;
  }
  .page-about__faq-answer {
    padding: 15px 20px;
  }
  .page-about__cta-title {
    font-size: 1.8rem;
  }
  .page-about__cta-description {
    font-size: 1rem;
  }
  .page-about__cta-button {
    width: 100%;
    margin: 10px 0 !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__btn-secondary {
    width: 100%;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-about__section,
  .page-about__card,
  .page-about__container,
  .page-about__hero-section,
  .page-about__mission-vision,
  .page-about__why-choose-us,
  .page-about__history,
  .page-about__responsible-gaming,
  .page-about__faq,
  .page-about__cta-section,
  .page-about__hero-image-wrapper,
  .page-about__hero-content,
  .page-about__mission-vision-grid,
  .page-about__mission-card,
  .page-about__vision-card,
  .page-about__features-grid,
  .page-about__feature-card,
  .page-about__history-timeline,
  .page-about__timeline-item,
  .page-about__responsible-content,
  .page-about__responsible-text,
  .page-about__responsible-image-wrapper,
  .page-about__faq-list,
  .page-about__faq-item,
  .page-about__faq-question,
  .page-about__faq-answer {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__responsible-text li {
    padding-left: 25px; /* Adjust for smaller screens */
  }
}

@media (max-width: 480px) {
  .page-about__hero-title {
    font-size: 1.7rem;
  }
  .page-about__section-title {
    font-size: 1.6rem;
  }
  .page-about__card-title {
    font-size: 1.5rem;
  }
  .page-about__feature-title {
    font-size: 1.3rem;
  }
  .page-about__timeline-year {
    font-size: 1.4rem;
  }
  .page-about__faq-question {
    font-size: 1rem;
  }
  .page-about__cta-title {
    font-size: 1.6rem;
  }
}