.page-ththao {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light body background */
  background-color: #f8f8f8; /* Body background from shared.css */
}

.page-ththao__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 60px;
  background-color: #08160F; /* Deep Green background for hero */
  color: #F2FFF6; /* Light text for dark background */
  text-align: center;
  overflow: hidden;
}

.page-ththao__hero-video-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.page-ththao__hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5); /* Darken video to ensure text readability */
}

.page-ththao__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
  color: #F2FFF6;
}

.page-ththao__main-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #F2FFF6;
}

.page-ththao__hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: #A7D9B8;
}

.page-ththao__hero-cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-ththao__section {
  padding: 60px 20px;
}

.page-ththao__container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-ththao__section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: #11A84E;
}

.page-ththao__dark-bg .page-ththao__section-title {
  color: #F2C14E; /* Gold for titles on dark background */
}

.page-ththao__text-block {
  font-size: 1rem;
  margin-bottom: 20px;
  text-align: justify;
  color: #333333;
}

.page-ththao__dark-bg .page-ththao__text-block {
  color: #A7D9B8;
}

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

.page-ththao__feature-card, .page-ththao__promotion-card {
  background-color: #11271B; /* Card BG */
  color: #F2FFF6;
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #2E7A4E;
}

.page-ththao__feature-card:hover, .page-ththao__promotion-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-ththao__feature-image, .page-ththao__promotion-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-ththao__card-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #F2C14E;
}

.page-ththao__sports-list, .page-ththao__steps-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.page-ththao__sports-item, .page-ththao__steps-item {
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-ththao__dark-bg .page-ththao__sports-item, 
.page-ththao__dark-bg .page-ththao__steps-item {
  background-color: #11271B;
  border-color: #2E7A4E;
  color: #A7D9B8;
}

.page-ththao__list-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #11A84E;
}

.page-ththao__dark-bg .page-ththao__list-title {
  color: #F2C14E;
}

.page-ththao__steps-item p {
  margin-bottom: 15px;
}

.page-ththao__step-button {
  margin-top: 10px;
  display: inline-block;
}

.page-ththao__note {
  font-size: 0.9rem;
  color: #A7D9B8;
  text-align: center;
  margin-top: 30px;
}

.page-ththao__advantage-item {
  background-color: #11271B;
  border: 1px solid #2E7A4E;
  border-radius: 10px;
  padding: 20px;
  color: #A7D9B8;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-ththao__advantage-item .page-ththao__list-title {
  color: #F2C14E;
}

.page-ththao__faq-list {
  margin-top: 30px;
}

.page-ththao__faq-item {
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.page-ththao__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #11A84E;
  cursor: pointer;
  background-color: #f9f9f9;
  border-bottom: 1px solid #e0e0e0;
  list-style: none; /* For details/summary */
}

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

.page-ththao__faq-item[open] .page-ththao__faq-question {
  background-color: #f0f0f0;
  border-bottom-color: #d0d0d0;
}

.page-ththao__faq-qtext {
  flex-grow: 1;
  color: #11A84E;
}

.page-ththao__faq-toggle {
  font-size: 1.5rem;
  font-weight: bold;
  color: #11A84E;
  margin-left: 15px;
}

.page-ththao__faq-item[open] .page-ththao__faq-toggle {
  content: '−';
}

.page-ththao__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: #333333;
  background-color: #ffffff;
}

.page-ththao__faq-answer p {
  margin-bottom: 15px;
}

.page-ththao__faq-button {
  margin-top: 15px;
  display: inline-block;
}

.page-ththao__conclusion {
  text-align: center;
  padding-top: 80px;
  padding-bottom: 80px;
  background-color: #08160F;
  color: #F2FFF6;
}

.page-ththao__conclusion .page-ththao__text-block {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #A7D9B8;
}

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

/* Buttons */
.page-ththao__btn-primary,
.page-ththao__btn-secondary,
.page-ththao a[class*="btn"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 25px;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  box-sizing: border-box;
}

.page-ththao__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #F2FFF6;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-ththao__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-ththao__btn-secondary {
  background-color: transparent;
  color: #11A84E;
  border: 2px solid #11A84E;
}

.page-ththao__btn-secondary:hover {
  background-color: #11A84E;
  color: #F2FFF6;
}

.page-ththao__text-link {
  color: #F2C14E;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.page-ththao__text-link:hover {
  color: #57E38D;
}

/* Responsive images */
.page-ththao img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive video */
.page-ththao video {
  max-width: 100%;
  width: 100%;
  height: auto;
  display: block;
}

/* Video container base responsive */
.page-ththao__hero-video-wrapper {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .page-ththao {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-ththao__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }

  .page-ththao__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

  .page-ththao__hero-description {
    font-size: clamp(0.9rem, 3vw, 1.1rem);
  }

  .page-ththao__hero-cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-ththao__btn-primary,
  .page-ththao__btn-secondary,
  .page-ththao 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;
  }

  .page-ththao__section {
    padding: 40px 15px;
  }

  .page-ththao__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    margin-bottom: 30px;
  }

  .page-ththao__feature-grid, 
  .page-ththao__promotion-grid, 
  .page-ththao__advantages-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-ththao__feature-card, 
  .page-ththao__promotion-card, 
  .page-ththao__sports-item, 
  .page-ththao__steps-item, 
  .page-ththao__advantage-item, 
  .page-ththao__faq-item {
    padding: 20px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-ththao__feature-image, .page-ththao__promotion-image {
    height: 180px;
  }

  .page-ththao__card-title {
    font-size: 1.2rem;
  }

  .page-ththao__list-title {
    font-size: 1.1rem;
  }

  .page-ththao__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-ththao__faq-answer {
    padding: 15px 20px;
  }

  .page-ththao__conclusion {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .page-ththao__conclusion-cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  /* Ensure all images are responsive */
  .page-ththao img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  /* Video responsive */
  .page-ththao video, .page-ththao__hero-video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-ththao__hero-video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  /* Ensure all containers holding images/videos/buttons are responsive */
  .page-ththao__container,
  .page-ththao__feature-grid,
  .page-ththao__promotion-grid,
  .page-ththao__advantages-grid,
  .page-ththao__hero-cta-buttons,
  .page-ththao__conclusion-cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0px;
    padding-right: 0px;
  }

  .page-ththao__feature-card p,
  .page-ththao__promotion-card p,
  .page-ththao__sports-item p,
  .page-ththao__steps-item p,
  .page-ththao__advantage-item p,
  .page-ththao__faq-answer p {
    text-align: left;
  }

  .page-ththao__text-block {
    text-align: left;
  }
}