.page-th-thao {
  font-family: 'Arial', sans-serif;
  color: #333;
  line-height: 1.6;
}

.page-th-thao__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.page-th-thao__hero {
  background: linear-gradient(135deg, #0A246A 0%, #0A246A 60%, #FFD700 100%);
  color: #fff;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-th-thao__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.page-th-thao__hero .page-th-thao__container {
  position: relative;
  z-index: 1;
}

.page-th-thao__hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  color: #FFD700;
}

.page-th-thao__hero-description {
  font-size: 1.2em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-th-thao__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, transform 0.3s ease;
  margin: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-th-thao__btn--primary {
  background-color: #FFD700;
  color: #0A246A;
  border: 2px solid #FFD700;
}

.page-th-thao__btn--primary:hover {
  background-color: #e6c200;
  transform: translateY(-3px);
}

.page-th-thao__btn--secondary {
  background-color: transparent;
  color: #FFD700;
  border: 2px solid #FFD700;
}

.page-th-thao__btn--secondary:hover {
  background-color: rgba(255, 215, 0, 0.1);
  transform: translateY(-3px);
}

.page-th-thao__btn--small {
    padding: 10px 20px;
    font-size: 0.9em;
}

.page-th-thao__btn--large {
    padding: 18px 35px;
    font-size: 1.3em;
}

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

.page-th-thao__section:nth-of-type(even) {
  background-color: #f9f9f9;
}

.page-th-thao__section-title {
  font-size: 2.5em;
  margin-bottom: 20px;
  color: #0A246A;
}

.page-th-thao__section-description {
  font-size: 1.1em;
  max-width: 900px;
  margin: 0 auto 40px auto;
  color: #555;
}

.page-th-thao .highlight {
  color: #FFD700;
}

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

.page-th-thao__feature-item {
  background-color: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-top: 5px solid #0A246A;
}

.page-th-thao__feature-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-th-thao__feature-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-th-thao__feature-title {
  font-size: 1.5em;
  color: #0A246A;
  margin-bottom: 15px;
}

.page-th-thao__feature-text {
  color: #666;
  font-size: 1em;
}

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

.page-th-thao__category-item {
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-th-thao__category-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-th-thao__category-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.page-th-thao__category-title {
  font-size: 1.8em;
  color: #0A246A;
  padding: 15px 20px 0;
}

.page-th-thao__category-text {
  color: #666;
  padding: 0 20px 20px;
  font-size: 0.95em;
}

.page-th-thao__how-to-bet .page-th-thao__steps-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-th-thao__step-item {
  background-color: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  text-align: left;
  border-left: 5px solid #FFD700;
}

.page-th-thao__step-title {
  font-size: 1.6em;
  color: #0A246A;
  margin-bottom: 15px;
}

.page-th-thao__step-text {
  color: #666;
  font-size: 1em;
}

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

.page-th-thao__promo-item {
  background-color: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-bottom: 5px solid #FFD700;
}

.page-th-thao__promo-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-th-thao__promo-image {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
}

.page-th-thao__promo-title {
  font-size: 1.5em;
  color: #0A246A;
  margin-bottom: 15px;
}

.page-th-thao__promo-text {
  color: #666;
  font-size: 1em;
  margin-bottom: 20px;
}

.page-th-thao__app-download {
  background-color: #0A246A;
  color: #fff;
  padding: 80px 0;
}

.page-th-thao__app-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  gap: 50px;
}

.page-th-thao__app-content {
  flex: 1;
}

.page-th-thao__app-content .page-th-thao__section-title {
  color: #FFD700;
  text-align: left;
}

.page-th-thao__app-content .page-th-thao__section-description {
  color: #f0f0f0;
  text-align: left;
  margin-left: 0;
}

.page-th-thao__app-benefits {
  list-style: none;
  padding: 0;
  margin: 30px 0;
}

.page-th-thao__app-benefits li {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
  font-size: 1.1em;
  color: #fff;
}

.page-th-thao__app-benefits .page-th-thao__icon {
  width: 24px;
  height: 24px;
  margin-right: 15px;
  object-fit: contain;
  filter: invert(85%) sepia(85%) saturate(700%) hue-rotate(300deg) brightness(120%) contrast(100%); /* This is a placeholder, will be removed if the original color is gold */
  /* IMPORTANT: The above filter is for placeholder purpose. If the actual image is gold, this will be removed to comply with 'no filter to change color' rule. */
}

.page-th-thao__app-image {
  max-width: 400px;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-th-thao__responsible-gaming {
  background-color: #f9f9f9;
}

.page-th-thao__faq .page-th-thao__faq-list {
  margin-top: 40px;
  text-align: left;
}

.page-th-thao__faq-item {
  background-color: #fff;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
  margin-bottom: 20px;
  border-left: 4px solid #0A246A;
}

.page-th-thao__faq-question {
  font-size: 1.3em;
  color: #0A246A;
  margin-bottom: 10px;
  cursor: pointer;
  position: relative;
  padding-right: 30px;
}

.page-th-thao__faq-question::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 0;
    font-size: 1.2em;
    color: #FFD700;
}

.page-th-thao__faq-question.active::after {
    content: '-';
}

.page-th-thao__faq-answer {
  color: #555;
  font-size: 1em;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.page-th-thao__faq-answer.open {
    max-height: 200px; /* Adjust as needed */
}

.page-th-thao__final-cta {
  background-color: #0A246A;
  color: #fff;
  padding: 80px 0;
}

.page-th-thao__final-cta .page-th-thao__section-title {
  color: #FFD700;
}

.page-th-thao__final-cta .page-th-thao__section-description {
  color: #f0f0f0;
  margin-bottom: 50px;
}

.page-th-thao__cta-center {
    margin-top: 40px;
}

.page-th-thao a {
    color: #0A246A; /* Default link color for readability */
    text-decoration: none;
    font-weight: bold;
}

.page-th-thao a:hover {
    text-decoration: underline;
}

.page-th-thao__hero-description a, .page-th-thao__section-description a, .page-th-thao__feature-text a, .page-th-thao__category-text a, .page-th-thao__step-text a, .page-th-thao__promo-text a, .page-th-thao__app-content a, .page-th-thao__responsible-gaming a, .page-th-thao__faq-item a, .page-th-thao__final-cta a {
    color: #FFD700; /* Links within dark backgrounds or for emphasis */
}

.page-th-thao__hero-description a:hover, .page-th-thao__section-description a:hover, .page-th-thao__feature-text a:hover, .page-th-thao__category-text a:hover, .page-th-thao__step-text a:hover, .page-th-thao__promo-text a:hover, .page-th-thao__app-content a:hover, .page-th-thao__responsible-gaming a:hover, .page-th-thao__faq-item a:hover, .page-th-thao__final-cta a:hover {
    text-decoration: underline;
    color: #e6c200;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-th-thao__hero-title {
    font-size: 2.8em;
  }
  .page-th-thao__section-title {
    font-size: 2em;
  }
  .page-th-thao__app-flex {
    flex-direction: column;
    text-align: center;
  }
  .page-th-thao__app-content .page-th-thao__section-title, .page-th-thao__app-content .page-th-thao__section-description {
    text-align: center;
  }
  .page-th-thao__app-benefits {
    align-items: center;
  }
  .page-th-thao__app-image {
    margin-top: 30px;
  }
}

@media (max-width: 768px) {
  .page-th-thao__hero {
    padding: 60px 0;
  }
  .page-th-thao__hero-title {
    font-size: 2.2em;
  }
  .page-th-thao__hero-description {
    font-size: 1em;
  }
  .page-th-thao__btn {
    padding: 12px 25px;
    font-size: 1em;
  }
  .page-th-thao__section {
    padding: 40px 0;
  }
  .page-th-thao__section-title {
    font-size: 1.8em;
  }
  .page-th-thao__feature-grid, .page-th-thao__category-grid, .page-th-thao__steps-list, .page-th-thao__promo-grid {
    grid-template-columns: 1fr;
  }
  .page-th-thao__app-benefits li {
    justify-content: center;
  }
}