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

  color: var(--text-main);
  background-color: var(--bg-color);
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

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

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

.page-ththao__section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  color: var(--gold-color);
  margin-bottom: 30px;
  line-height: 1.2;
}

.page-ththao__text-block {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 900px;
  margin: 0 auto 20px auto;
  line-height: 1.8;
}

.page-ththao__text-block strong {
  color: var(--text-main);
}

/* Hero Section */
.page-ththao__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* body handles padding-top, this is decorative */
  overflow: hidden;
  box-sizing: border-box;
}

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

.page-ththao__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4); /* Darken image for text readability */
}

.page-ththao__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 40px 20px;
  text-align: center;
  background-color: rgba(17, 39, 27, 0.6); /* Semi-transparent card-bg */
  border-radius: 12px;
  margin-top: 100px; /* Push content down from top */
  backdrop-filter: blur(5px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}

.page-ththao__main-title {
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 800;
  color: var(--gold-color);
  margin-bottom: 20px;
  line-height: 1.1;
  text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

.page-ththao__subtitle {
  font-size: clamp(18px, 2.5vw, 24px);
  color: var(--text-main);
  margin-bottom: 40px;
  line-height: 1.5;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.page-ththao__btn-primary,
.page-ththao__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  transition: all 0.3s ease;
  cursor: pointer;
  box-sizing: border-box;
  text-align: center;
}

.page-ththao__btn-primary {
  background: var(--button-gradient);
  color: var(--text-main);
  border: none;
  box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-ththao__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

.page-ththao__btn-secondary {
  background-color: transparent;
  color: var(--gold-color);
  border: 2px solid var(--gold-color);
  margin-top: 20px;
}

.page-ththao__btn-secondary:hover {
  background-color: rgba(242, 193, 78, 0.1);
  transform: translateY(-2px);
}

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

.page-ththao__card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: left;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.page-ththao__card-image {
  width: 100%;
  height: 225px; /* Aspect ratio 16:9 for 400x225 */
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-ththao__card-title {
  font-size: 24px;
  color: var(--gold-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-ththao__card-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex-grow: 1;
}

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

.page-ththao__step-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: left;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-ththao__step-image {
  width: 100%;
  height: 200px; /* Aspect ratio 3:2 for 300x200 */
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-ththao__step-title {
  font-size: 22px;
  color: var(--gold-color);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-ththao__step-list,
.page-ththao__promo-list,
.page-ththao__tips-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
  text-align: left;
}

.page-ththao__step-list li,
.page-ththao__promo-list li,
.page-ththao__tips-list li {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  line-height: 1.6;
}

.page-ththao__step-list li::before,
.page-ththao__promo-list li::before,
.page-ththao__tips-list li::before {
  content: '•';
  color: var(--gold-color);
  font-size: 24px;
  position: absolute;
  left: 0;
  top: -5px;
}

.page-ththao__step-text {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.7;
}

/* Dark Section */
.page-ththao__dark-section {
  background-color: var(--deep-green-color);
  color: var(--text-main);
}

.page-ththao__dark-section .page-ththao__section-title {
  color: var(--gold-color);
}

.page-ththao__dark-section .page-ththao__text-block {
  color: var(--text-secondary);
}

.page-ththao__dark-section .page-ththao__btn-primary {
  background: var(--button-gradient);
  color: var(--text-main);
  border: none;
  box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-ththao__dark-section .page-ththao__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

/* FAQ Section */
.page-ththao__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-ththao__faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-main);
  text-align: left;
}

.page-ththao__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--text-main);
}

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

.page-ththao__faq-qtext {
  flex-grow: 1;
}

.page-ththao__faq-toggle {
  font-size: 24px;
  line-height: 1;
  margin-left: 15px;
  color: var(--gold-color);
}

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

.page-ththao__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--divider-color);
  margin-top: -1px; /* Overlap border */
}

.page-ththao__faq-answer p {
  margin-bottom: 0;
  color: var(--text-secondary);
}

/* CTA Section */
.page-ththao__cta-section {
  padding: 80px 0;
  background-color: var(--bg-color);
}

.page-ththao__cta-content {
  background-color: var(--card-bg);
  border-radius: 15px;
  padding: 50px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
  border: 1px solid var(--border-color);
}

.page-ththao__cta-content .page-ththao__section-title {
  color: var(--gold-color);
  margin-bottom: 25px;
}

.page-ththao__cta-content .page-ththao__text-block {
  margin-bottom: 40px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-ththao__hero-content {
    margin-top: 50px;
    padding: 30px 20px;
  }
  .page-ththao__section {
    padding: 40px 0;
  }
  .page-ththao__section-title {
    font-size: clamp(24px, 5vw, 40px);
  }
  .page-ththao__text-block {
    font-size: 17px;
  }
  .page-ththao__card-grid,
  .page-ththao__steps-grid {
    gap: 20px;
  }
  .page-ththao__card,
  .page-ththao__step-card {
    padding: 25px;
  }
}

@media (max-width: 768px) {
  .page-ththao__hero-section {
    padding-bottom: 40px;
  }
  .page-ththao__hero-content {
    margin-top: 30px;
    padding: 20px 15px;
    width: calc(100% - 30px);
    max-width: 100%;
  }
  .page-ththao__main-title {
    font-size: clamp(28px, 6vw, 40px);
    margin-bottom: 15px;
  }
  .page-ththao__subtitle {
    font-size: clamp(16px, 3vw, 20px);
    margin-bottom: 30px;
  }
  .page-ththao__section {
    padding: 30px 0;
  }
  .page-ththao__section-title {
    font-size: clamp(22px, 6vw, 36px);
    margin-bottom: 20px;
  }
  .page-ththao__text-block {
    font-size: 16px;
    padding: 0 15px;
  }
  .page-ththao__container {
    padding: 0 15px;
  }
  
  /* Images & Videos */
  .page-ththao img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-ththao__hero-image-wrapper,
  .page-ththao__card,
  .page-ththao__step-card,
  .page-ththao__faq-item,
  .page-ththao__cta-content {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  .page-ththao__card-image,
  .page-ththao__step-image {
    height: auto !important; /* Allow height to adjust */
  }

  /* Buttons */
  .page-ththao__btn-primary,
  .page-ththao__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px !important;
    font-size: 16px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    margin-left: auto;
    margin-right: auto;
  }
  .page-ththao__btn-primary + .page-ththao__btn-secondary {
    margin-top: 15px !important;
  }
  .page-ththao__cta-content {
    padding: 30px 20px;
  }
  .page-ththao__cta-content .page-ththao__btn-primary {
    margin-top: 20px;
  }

  .page-ththao__faq-item summary {
    padding: 15px 20px;
    font-size: 16px;
  }
  .page-ththao__faq-answer {
    padding: 0 20px 15px 20px;
    font-size: 15px;
  }
}