.page-bnc {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF5E1; /* Text Main */
  background-color: #B71C1C; /* Background */
}

.page-bnc__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles header offset */
  box-sizing: border-box;
  overflow: hidden;
}

.page-bnc__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  margin-bottom: 30px;
}

.page-bnc__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-bnc__hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-bnc__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em); /* Responsive H1 size */
  color: #FFD86A; /* Gold-like for title */
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-bnc__subtitle {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #FFF5E1;
}

.page-bnc__cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.page-bnc__btn-primary,
.page-bnc__btn-secondary,
.page-bnc__btn-gold {
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-bnc__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red for text on gold button */
  border: 2px solid #F2B544; /* Border */
}

.page-bnc__btn-primary:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-bnc__btn-secondary {
  background: #C91F17; /* Main Color */
  color: #FFF5E1; /* Text Main */
  border: 2px solid #F2B544; /* Border */
}

.page-bnc__btn-secondary:hover {
  background: #E53935; /* Auxiliary Color */
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-bnc__btn-gold {
  background: linear-gradient(180deg, #F4D34D 0%, #E6B800 100%); /* Gold color */
  color: #7A0E0E; /* Deep Red for text */
  border: 2px solid #F2B544; /* Border */
}

.page-bnc__btn-gold:hover {
  background: linear-gradient(180deg, #E6B800 0%, #F4D34D 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-bnc__section {
  padding: 60px 20px;
  box-sizing: border-box;
}

.page-bnc__dark-section {
  background-color: #7A0E0E; /* Deep Red */
  color: #FFF5E1;
}

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

.page-bnc__section-title {
  font-size: clamp(1.8em, 3vw, 2.8em);
  color: #FFD86A; /* Gold-like */
  text-align: center;
  margin-bottom: 40px;
  font-weight: 700;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.page-bnc__text-block {
  font-size: 1.05em;
  margin-bottom: 20px;
  text-align: justify;
  color: #FFF5E1;
}

.page-bnc__highlight {
  color: #FFCC66; /* Glow */
  font-weight: bold;
}

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

.page-bnc__feature-card {
  background-color: #D32F2F; /* Card BG */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid #F2B544; /* Border */
  color: #FFF5E1;
}

.page-bnc__feature-icon {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-bnc__feature-title {
  font-size: 1.5em;
  color: #FFD86A; /* Gold-like */
  margin-bottom: 15px;
}

.page-bnc__game-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-bnc__game-card {
  background-color: #D32F2F; /* Card BG */
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid #F2B544; /* Border */
  color: #FFF5E1;
}

.page-bnc__game-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 15px;
  display: block;
}

.page-bnc__game-name {
  font-size: 1.6em;
  color: #FFD86A; /* Gold-like */
  margin-bottom: 10px;
}

.page-bnc__step-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
  counter-reset: step-counter;
}

.page-bnc__step-item {
  background-color: #D32F2F; /* Card BG */
  padding: 25px 30px;
  margin-bottom: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  position: relative;
  padding-left: 70px;
  border: 1px solid #F2B544; /* Border */
  color: #FFF5E1;
}

.page-bnc__step-item::before {
  counter-increment: step-counter;
  content: "Bước " counter(step-counter);
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E; /* Deep Red */
  width: 45px;
  height: 45px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.9em;
  border: 2px solid #F2B544;
}

.page-bnc__step-title {
  font-size: 1.4em;
  color: #FFD86A; /* Gold-like */
  margin-bottom: 10px;
}

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

.page-bnc__strategy-item {
  background-color: #D32F2F; /* Card BG */
  padding: 20px;
  margin-bottom: 15px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 1px solid #F2B544; /* Border */
  color: #FFF5E1;
}

.page-bnc__strategy-title {
  font-size: 1.3em;
  color: #FFD86A; /* Gold-like */
  margin-bottom: 10px;
}

.page-bnc__content-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  margin-top: 40px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid #F2B544;
}

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

.page-bnc__promo-card {
  background-color: #D32F2F; /* Card BG */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid #F2B544; /* Border */
  color: #FFF5E1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-bnc__promo-title {
  font-size: 1.5em;
  color: #FFD86A; /* Gold-like */
  margin-bottom: 15px;
}

.page-bnc__promo-card .page-bnc__btn-gold {
  margin-top: 20px;
  display: inline-block;
  width: auto;
  padding: 10px 20px;
  font-size: 1em;
}

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

.page-bnc__faq-item {
  background-color: #D32F2F; /* Card BG */
  margin-bottom: 15px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 1px solid #F2B544; /* Border */
  color: #FFF5E1;
}

.page-bnc__faq-item summary {
  list-style: none;
  padding: 20px 25px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  font-size: 1.2em;
  color: #FFD86A; /* Gold-like */
}

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

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

.page-bnc__faq-toggle {
  font-size: 1.5em;
  margin-left: 15px;
  transition: transform 0.3s ease;
}

.page-bnc__faq-item[open] .page-bnc__faq-toggle {
  transform: rotate(45deg);
}

.page-bnc__faq-answer {
  padding: 0 25px 20px;
  font-size: 1em;
  color: #FFF5E1;
}

.page-bnc__faq-answer p {
  margin: 0;
}

.page-bnc__faq-answer a {
  color: #FFCC66; /* Glow */
  text-decoration: underline;
}

.page-bnc__faq-answer a:hover {
  color: #FFD86A;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .page-bnc {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-bnc__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important;
  }

  .page-bnc__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
  }

  .page-bnc__subtitle {
    font-size: 1em;
  }

  .page-bnc__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-bnc__btn-primary,
  .page-bnc__btn-secondary,
  .page-bnc__btn-gold,
  .page-bnc a[class*="button"],
  .page-bnc 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-bnc__section {
    padding: 40px 15px;
  }

  .page-bnc__container {
    padding: 0;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

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

  .page-bnc__feature-grid,
  .page-bnc__game-cards,
  .page-bnc__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-bnc__feature-card,
  .page-bnc__game-card,
  .page-bnc__promo-card,
  .page-bnc__step-item,
  .page-bnc__strategy-item,
  .page-bnc__faq-item {
    padding: 20px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-bnc__hero-image,
  .page-bnc__feature-icon,
  .page-bnc__game-image,
  .page-bnc__content-image,
  .page-bnc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-bnc__video-section,
  .page-bnc__video-container,
  .page-bnc__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  .page-bnc video,
  .page-bnc__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-bnc__step-item::before {
    position: static;
    transform: none;
    margin-bottom: 10px;
    display: inline-flex;
    width: auto;
    height: auto;
    padding: 5px 10px;
    font-size: 1em;
  }

  .page-bnc__step-item {
    padding-left: 20px;
  }

  .page-bnc__faq-item summary {
    font-size: 1em;
  }

  .page-bnc__faq-toggle {
    font-size: 1.2em;
  }
}