/* style/about.css */

/* Biến CSS cho màu sắc */
:root {
  --page-about-primary-color: #26A9E0;
  --page-about-secondary-color: #FFFFFF;
  --page-about-dark-text: #ffffff; /* Vì body background là #000000 (dark) */
  --page-about-light-text: #333333;
  --page-about-button-login-color: #EA7C07;
}

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--page-about-dark-text); /* Mặc định chữ trắng trên nền đen của body */
  background-color: #000000; /* Kế thừa từ body */
}

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

/* Hero Section */
.page-about__hero-section {
  position: relative;
  width: 100%;
  padding-top: var(--header-offset, 120px); /* Đảm bảo không bị header che */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  color: var(--page-about-secondary-color);
  background-color: #000000; /* Nền đen */
  padding-bottom: 60px;
}

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

.page-about__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4); /* Làm mờ ảnh nền để text nổi bật */
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 40px 20px;
}

.page-about__hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  color: var(--page-about-secondary-color);
  line-height: 1.2;
}

.page-about__hero-description {
  font-size: 1.3em;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.9);
}

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

/* General Section Styling */
.page-about__section-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 40px;
  color: var(--page-about-primary-color);
}

.page-about__text-block {
  font-size: 1.1em;
  margin-bottom: 20px;
  line-height: 1.8;
  text-align: justify;
}

.page-about__image-content {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 40px auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Background color variations */
.page-about__dark-bg {
  background-color: #000000;
  color: var(--page-about-secondary-color);
  padding: 60px 0;
}

.page-about__light-bg {
  background-color: var(--page-about-secondary-color);
  color: var(--page-about-light-text);
  padding: 60px 0;
}

.page-about__light-bg .page-about__section-title,
.page-about__light-bg a {
  color: var(--page-about-primary-color);
}

/* Card Styling */
.page-about__card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  box-sizing: border-box;
}

.page-about__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.page-about__card--inverted {
  background: var(--page-about-secondary-color);
  color: var(--page-about-light-text);
}

.page-about__card--inverted .page-about__card-title {
  color: var(--page-about-primary-color);
}

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

.page-about__card-text {
  font-size: 1em;
  line-height: 1.7;
  margin-bottom: 15px;
}

/* Flex Container for Cards */
.page-about__flex-container {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-top: 40px;
  justify-content: center;
}

.page-about__flex-container > div {
  flex: 1 1 calc(50% - 30px);
  min-width: 300px;
}

/* Grid Container for Values */
.page-about__grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__value-item {
  background: #f8f9fa;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  text-align: center;
  color: var(--page-about-light-text);
}

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

.page-about__value-description {
  font-size: 1em;
  line-height: 1.7;
}

/* Timeline Section */
.page-about__timeline {
  position: relative;
  max-width: 900px;
  margin: 60px auto;
  padding: 20px 0;
}

.page-about__timeline::before {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--page-about-primary-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
}

.page-about__timeline-item {
  padding: 10px 0;
  position: relative;
  width: 50%;
}

.page-about__timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 30px;
  text-align: right;
}

.page-about__timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 30px;
  text-align: left;
}

.page-about__timeline-item::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background-color: var(--page-about-primary-color);
  border: 2px solid var(--page-about-secondary-color);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.page-about__timeline-item:nth-child(odd)::after {
  right: -8px;
}

.page-about__timeline-item:nth-child(even)::after {
  left: -8px;
}

.page-about__timeline-year {
  font-size: 1.2em;
  font-weight: bold;
  color: var(--page-about-primary-color);
  margin-bottom: 5px;
}

.page-about__timeline-title {
  font-size: 1.5em;
  color: var(--page-about-secondary-color);
  margin-bottom: 10px;
}

.page-about__timeline-description {
  font-size: 1em;
  color: rgba(255, 255, 255, 0.8);
}

/* List styling */
.page-about__list {
  list-style-type: disc;
  margin: 20px auto;
  max-width: 800px;
  padding-left: 40px;
  font-size: 1.1em;
  line-height: 1.8;
  color: var(--page-about-secondary-color);
}

.page-about__list li {
  margin-bottom: 10px;
}

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

/* FAQ Section */
.page-about__faq-list {
  margin-top: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__faq-item {
  background-color: #f8f9fa;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--page-about-light-text);
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.2em;
  font-weight: bold;
  cursor: pointer;
  background-color: var(--page-about-primary-color);
  color: var(--page-about-secondary-color);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: background-color 0.3s ease;
}

.page-about__faq-question:hover {
  background-color: #1a8cc4; /* Darker shade of primary color */
}

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

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

.page-about__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  background-color: var(--page-about-secondary-color);
  color: var(--page-about-light-text);
}

.page-about__faq-item.active .page-about__faq-answer {
  max-height: 1000px !important; /* Đảm bảo đủ cao để hiển thị nội dung */
  padding: 20px;
}

.page-about__faq-answer p {
  margin-bottom: 0;
  font-size: 1em;
  line-height: 1.7;
}

.page-about__text-center {
  text-align: center;
  margin-top: 30px;
}

/* CTA Section */
.page-about__cta-section {
  text-align: center;
  padding: 80px 0;
  background-color: #000000;
  color: var(--page-about-secondary-color);
}

.page-about__cta-content {
  max-width: 900px;
}

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

/* Buttons */
.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  box-sizing: border-box;
  text-align: center;
  white-space: normal;
  word-wrap: break-word;
}

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

.page-about__btn-primary:hover {
  background-color: #1a8cc4;
  border-color: #1a8cc4;
}

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

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

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__hero-title {
    font-size: 3em;
  }

  .page-about__hero-description {
    font-size: 1.2em;
  }

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

  .page-about__flex-container > div {
    flex: 1 1 calc(100% - 30px);
  }

  .page-about__timeline::before {
    left: 20px;
  }

  .page-about__timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 20px;
    text-align: left;
  }

  .page-about__timeline-item:nth-child(odd) {
    padding-right: 20px;
    text-align: left;
  }

  .page-about__timeline-item:nth-child(odd)::after {
    left: 12px;
    right: auto;
  }

  .page-about__timeline-item:nth-child(even) {
    left: 0;
  }

  .page-about__timeline-item:nth-child(even)::after {
    left: 12px;
  }
}

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

  .page-about__hero-section {
    padding-top: var(--header-offset, 120px) !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__hero-title {
    font-size: 2.2em;
  }

  .page-about__hero-description {
    font-size: 1em;
  }

  .page-about__hero-cta {
    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;
    box-sizing: border-box !important;
  }

  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__container,
  .page-about__introduction-section,
  .page-about__mission-vision-section,
  .page-about__values-section,
  .page-about__history-section,
  .page-about__team-section,
  .page-about__responsible-gaming-section,
  .page-about__faq-section,
  .page-about__cta-section {
    padding-left: 15px;
    padding-right: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-about__image-content {
    margin-left: auto !important;
    margin-right: auto !important;
  }

  .page-about__faq-item.active .page-about__faq-answer {
    padding: 15px !important;
  }

  .page-about__faq-question {
    padding: 15px;
  }

  .page-about__timeline::before {
    left: 15px;
  }

  .page-about__timeline-item {
    padding-left: 45px;
  }

  .page-about__timeline-item::after {
    left: 7px;
  }
}

@media (max-width: 480px) {
  .page-about__hero-title {
    font-size: 1.8em;
  }

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

  .page-about__hero-section {
    padding-bottom: 40px;
  }

  .page-about__flex-container > div,
  .page-about__grid-container > div {
    min-width: unset;
  }
}