/* style/bnc.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */

:root {
  --bnc-primary-color: #11A84E;
  --bnc-secondary-color: #22C768;
  --bnc-background-dark: #08160F;
  --bnc-card-background: #11271B;
  --bnc-text-main: #F2FFF6;
  --bnc-text-secondary: #A7D9B8;
  --bnc-border-color: #2E7A4E;
  --bnc-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-bnc {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--bnc-text-main); /* Default text color for dark background */
  background-color: var(--bnc-background-dark);
}

.page-bnc__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0; /* body đã có padding-top, đây là khoảng cách nhỏ */
  background-color: var(--bnc-background-dark);
}

.page-bnc__hero-image-wrapper {
  width: 100%;
  max-width: 100%; /* Đảm bảo hình ảnh không tràn */
  margin-bottom: 30px;
}

.page-bnc__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-bnc__hero-content {
  width: 100%;
  max-width: 900px;
  text-align: center;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-bnc__main-title {
  font-size: clamp(2em, 4vw, 3.5em); /* Responsive font size */
  font-weight: 700;
  color: var(--bnc-text-main);
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-bnc__description {
  font-size: 1.1em;
  color: var(--bnc-text-secondary);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-bnc__btn-primary,
.page-bnc__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-bnc__btn-primary {
  background: var(--bnc-button-gradient);
  color: var(--bnc-text-main);
  border: 2px solid transparent;
}

.page-bnc__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.page-bnc__btn-secondary {
  background-color: transparent;
  color: var(--bnc-primary-color);
  border: 2px solid var(--bnc-primary-color);
}

.page-bnc__btn-secondary:hover {
  background-color: var(--bnc-primary-color);
  color: var(--bnc-text-main);
  transform: translateY(-2px);
}

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

.page-bnc__content-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}

.page-bnc__section-title {
  font-size: clamp(1.8em, 3vw, 2.8em);
  font-weight: 700;
  margin-bottom: 30px;
  text-align: center;
  line-height: 1.3;
}

.page-bnc__text-block {
  font-size: 1.05em;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.page-bnc__dark-bg {
  background-color: var(--bnc-background-dark);
  color: var(--bnc-text-main);
}

.page-bnc__light-bg {
  background-color: #183125; /* Slightly lighter dark background for contrast */
  color: var(--bnc-text-main);
}

.page-bnc__light-text {
  color: var(--bnc-text-main);
}

.page-bnc__secondary-text {
  color: var(--bnc-text-secondary);
}

.page-bnc__features-section .page-bnc__section-title {
  color: var(--bnc-text-main);
}

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

.page-bnc__card {
  background-color: var(--bnc-card-background);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--bnc-border-color);
}

.page-bnc__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-bnc__card-title {
  font-size: 1.4em;
  font-weight: 600;
  color: var(--bnc-text-main);
  margin-bottom: 10px;
}

.page-bnc__card-description {
  font-size: 0.95em;
  color: var(--bnc-text-secondary);
}

.page-bnc__list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-bnc__list-item {
  background-color: var(--bnc-card-background);
  border: 1px solid var(--bnc-border-color);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 15px;
  font-size: 1.05em;
  color: var(--bnc-text-main);
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

.page-bnc__list-item::before {
  content: '✓';
  color: var(--bnc-secondary-color);
  font-weight: bold;
  font-size: 1.2em;
  line-height: 1;
  flex-shrink: 0;
}

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

.page-bnc__strategy-item {
  background-color: var(--bnc-card-background);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--bnc-border-color);
}

.page-bnc__strategy-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-bnc__strategy-title {
  font-size: 1.3em;
  font-weight: 600;
  color: var(--bnc-text-main);
  margin-bottom: 10px;
}

.page-bnc__strategy-description {
  font-size: 0.95em;
  color: var(--bnc-text-secondary);
}

.page-bnc__cta-wrapper {
  text-align: center;
  margin-top: 50px;
}

.page-bnc__promotion-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-bnc__promotion-list .page-bnc__list-item {
  background-color: var(--bnc-card-background);
  border: 1px solid var(--bnc-border-color);
}

.page-bnc__guide-section .page-bnc__section-title {
  color: var(--bnc-text-main);
}

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

.page-bnc__step-item {
  background-color: var(--bnc-card-background);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--bnc-border-color);
}

.page-bnc__step-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-bnc__step-title {
  font-size: 1.3em;
  font-weight: 600;
  color: var(--bnc-text-main);
  margin-bottom: 10px;
}

.page-bnc__step-description {
  font-size: 0.95em;
  color: var(--bnc-text-secondary);
}

.page-bnc__faq-section .page-bnc__section-title {
  color: var(--bnc-text-main);
}

.page-bnc__faq-list {
  max-width: 900px;
  margin: 40px auto 0 auto;
}

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

.page-bnc__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.1em;
  font-weight: 600;
  cursor: pointer;
  color: var(--bnc-text-main);
  background-color: #11271B; /* Slightly darker for question header */
  border-bottom: 1px solid var(--bnc-border-color);
}

.page-bnc__faq-question:hover {
  background-color: #1a352a;
}

.page-bnc__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

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

.page-bnc__faq-answer {
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
  color: var(--bnc-text-secondary);
}

.page-bnc__faq-item[open] .page-bnc__faq-answer {
  max-height: 500px; /* Adjust as needed */
  padding: 20px 25px;
}

.page-bnc__faq-answer p {
  margin: 0;
  font-size: 1em;
  line-height: 1.6;
}

/* Responsive styles */
@media (max-width: 768px) {
  .page-bnc__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-bnc__hero-content {
    padding: 0 15px;
  }

  .page-bnc__main-title {
    font-size: 2.2em;
  }

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

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

  .page-bnc__btn-primary,
  .page-bnc__btn-secondary {
    width: 100%;
    padding: 12px 20px;
    font-size: 1em;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

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

  .page-bnc__section-title {
    font-size: 1.8em;
  }

  .page-bnc__text-block,
  .page-bnc__list-item,
  .page-bnc__card-description,
  .page-bnc__strategy-description,
  .page-bnc__step-description,
  .page-bnc__faq-answer p {
    font-size: 0.95em;
  }

  .page-bnc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-bnc__hero-image-wrapper,
  .page-bnc__feature-cards,
  .page-bnc__strategy-grid,
  .page-bnc__steps-grid,
  .page-bnc__list,
  .page-bnc__promotion-list,
  .page-bnc__faq-list,
  .page-bnc__cta-buttons,
  .page-bnc__content-area {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0px;
    padding-right: 0px;
    overflow: hidden !important;
  }

  .page-bnc__card,
  .page-bnc__strategy-item,
  .page-bnc__step-item,
  .page-bnc__faq-item {
    padding: 20px;
  }

  .page-bnc__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }

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