/* style/about.css */

/* Biến CSS */
:root {
  --page-about-primary-color: #0A2463;
  --page-about-secondary-color: #FFD700;
  --page-about-text-dark: #333;
  --page-about-text-light: #fff;
  --page-about-bg-light: #f8f8f8;
  --page-about-bg-dark: #0A2463;
}

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

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

.page-about__hero {
  background: linear-gradient(135deg, var(--page-about-primary-color) 0%, #1A3F83 100%);
  color: var(--page-about-text-light);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-about__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  color: var(--page-about-secondary-color);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-about__hero-description {
  font-size: 1.3em;
  max-width: 800px;
  margin: 0 auto 40px;
  opacity: 0.9;
}

.page-about__hero-image {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  margin-top: 30px;
  transition: transform 0.3s ease-in-out;
}

.page-about__hero-image:hover {
  transform: scale(1.02);
}

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

.page-about__section:nth-of-type(even) {
  background-color: #e9e9e9;
}

.page-about__section-title {
  font-size: 2.8em;
  color: var(--page-about-primary-color);
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
}

.page-about__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -10px;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--page-about-secondary-color);
  border-radius: 2px;
}

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

.page-about__content-grid:nth-child(even) {
  grid-template-columns: 1fr 1fr;
}

.page-about__text-content p {
  font-size: 1.1em;
  margin-bottom: 15px;
}

.page-about__image-right, .page-about__image-left, .page-about__image-center {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease-in-out;
}

.page-about__image-right:hover, .page-about__image-left:hover, .page-about__image-center:hover {
  transform: translateY(-5px);
}

.page-about__image-center {
  display: block;
  margin: 30px auto;
}

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

.page-about__value-item {
  background-color: var(--page-about-text-light);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.page-about__value-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

.page-about__feature-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.page-about__feature-list li {
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="%23FFD700"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg>') no-repeat left center;
  background-size: 20px;
  padding-left: 30px;
  margin-bottom: 15px;
  font-size: 1.1em;
  color: var(--page-about-text-dark);
}

.page-about__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, transform 0.2s ease;
  margin-top: 20px;
}

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

.page-about__btn--primary:hover {
  background-color: #e6c200;
  transform: translateY(-2px);
}

.page-about__btn--secondary {
  background-color: var(--page-about-primary-color);
  color: var(--page-about-text-light);
  border: 2px solid var(--page-about-primary-color);
  margin-left: 20px;
}

.page-about__btn--secondary:hover {
  background-color: #081d4f;
  transform: translateY(-2px);
}

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

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

.page-about__responsible-gaming .page-about__section-title {
  color: var(--page-about-secondary-color);
}

.page-about__responsible-gaming .page-about__section-title::after {
  background-color: var(--page-about-text-light);
}

.page-about__responsible-gaming p {
  font-size: 1.1em;
  max-width: 900px;
  margin: 0 auto 30px;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-about__hero-title {
    font-size: 2.5em;
  }
  .page-about__section-title {
    font-size: 2.2em;
  }
  .page-about__content-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .page-about__image-left, .page-about__image-right {
    margin-bottom: 30px;
  }
  .page-about__text-content {
    order: 2;
  }
  .page-about__image-right {
    order: 1;
  }
  .page-about__value-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-about__hero {
    padding: 60px 0;
  }
  .page-about__hero-title {
    font-size: 2em;
  }
  .page-about__hero-description {
    font-size: 1em;
  }
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__section-title {
    font-size: 1.8em;
  }
  .page-about__value-item {
    padding: 20px;
  }
  .page-about__value-heading {
    font-size: 1.5em;
  }
  .page-about__feature-list li {
    font-size: 1em;
  }
  .page-about__btn {
    padding: 12px 25px;
    font-size: 1em;
  }
  .page-about__btn--secondary {
    margin-left: 0;
    margin-top: 15px;
  }
}

@media (max-width: 480px) {
  .page-about__hero-title {
    font-size: 1.8em;
  }
  .page-about__section-title {
    font-size: 1.5em;
  }
  .page-about__value-grid {
    grid-template-columns: 1fr;
  }
  .page-about__feature-list li {
    background-size: 18px;
    padding-left: 25px;
  }
  .page-about__btn {
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
  }
  .page-about__btn--secondary {
    margin-top: 10px;
  }
}