.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light background */
  background-color: #f8f8f8; /* Default page background */
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai__article-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai__top-section {
  padding-top: 10px; /* Small top padding, assuming body padding-top is handled by shared */
  padding-bottom: 40px;
  text-align: center;
  background-color: #B71C1C; /* Background color */
  color: #FFF5E1; /* Text Main */
}

.page-khuyen-mai__dark-bg {
  background-color: #B71C1C;
  color: #FFF5E1;
}

.page-khuyen-mai__light-bg {
  background-color: #f8f8f8;
  color: #333333;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em); /* Responsive font size for H1 */
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.2;
  color: #FFF5E1;
}

.page-khuyen-mai__intro-text {
  font-size: 1.15em;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #FFF5E1;
}

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

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__btn-card,
.page-khuyen-mai__btn-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05em;
  transition: all 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Button color */
  color: #7A0E0E; /* Deep Red for contrast */
  border: 2px solid #F2B544; /* Border color */
  box-shadow: 0 4px 15px rgba(255, 204, 102, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  box-shadow: 0 6px 20px rgba(255, 204, 102, 0.6);
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background-color: transparent;
  color: #FFF5E1; /* Text Main */
  border: 2px solid #F2B544; /* Border color */
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #F4D34D; /* Gold */
  border-color: #FFCC66; /* Glow */
  transform: translateY(-2px);
}

.page-khuyen-mai__section {
  padding: 60px 0;
}

.page-khuyen-mai__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: #C91F17; /* Main color */
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__section-title {
  color: #FFF5E1; /* Text Main */
}

.page-khuyen-mai__paragraph {
  font-size: 1.1em;
  margin-bottom: 20px;
  text-align: justify;
  color: inherit;
}

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

.page-khuyen-mai__promo-card {
  background-color: #D32F2F; /* Card BG */
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
  display: flex;
  flex-direction: column;
  color: #FFF5E1; /* Text Main */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  border: 1px solid #F2B544;
}

.page-khuyen-mai__card-title {
  font-size: 1.8em;
  font-weight: 700;
  margin-bottom: 15px;
  color: #FFCC66; /* Glow */
}

.page-khuyen-mai__card-description {
  font-size: 1em;
  line-height: 1.7;
  margin-bottom: 25px;
  flex-grow: 1;
  color: #FFF5E1;
}

.page-khuyen-mai__btn-card {
  margin-top: auto;
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Button color */
  color: #7A0E0E; /* Deep Red */
  border: 2px solid #F2B544; /* Border color */
  box-shadow: 0 2px 10px rgba(255, 204, 102, 0.3);
}

.page-khuyen-mai__btn-card:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  box-shadow: 0 4px 12px rgba(255, 204, 102, 0.5);
  transform: translateY(-2px);
}

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

.page-khuyen-mai__step-item {
  text-align: center;
  background-color: rgba(255, 255, 255, 0.05); /* Slightly transparent white for dark background */
  border-radius: 10px;
  padding: 30px 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  color: #FFF5E1;
}

.page-khuyen-mai__step-figure {
  margin: 0 0 20px 0;
}

.page-khuyen-mai__step-figure img {
  width: 100%;
  
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #F2B544;
}

.page-khuyen-mai__step-caption {
  font-style: italic;
  font-size: 0.9em;
  margin-top: 10px;
  color: #F4D34D; /* Gold */
}

.page-khuyen-mai__step-title {
  font-size: 1.6em;
  font-weight: 700;
  margin-bottom: 15px;
  color: #FFCC66; /* Glow */
}

.page-khuyen-mai__step-description {
  font-size: 1em;
  line-height: 1.7;
  margin-bottom: 25px;
  flex-grow: 1;
  color: #FFF5E1;
}

.page-khuyen-mai__btn-step {
  margin-top: auto;
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Button color */
  color: #7A0E0E; /* Deep Red */
  border: 2px solid #F2B544; /* Border color */
  box-shadow: 0 2px 10px rgba(255, 204, 102, 0.3);
}

.page-khuyen-mai__btn-step:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  box-shadow: 0 4px 12px rgba(255, 204, 102, 0.5);
  transform: translateY(-2px);
}

.page-khuyen-mai__list {
  list-style: disc;
  padding-left: 25px;
  margin-bottom: 20px;
  color: inherit;
}

.page-khuyen-mai__list-item {
  margin-bottom: 10px;
  font-size: 1.05em;
  line-height: 1.6;
  color: inherit;
}

.page-khuyen-mai__list-item strong {
  color: #C91F17; /* Main color */
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__list-item strong {
  color: #F4D34D; /* Gold */
}

.page-khuyen-mai__cta-buttons--bottom {
  margin-top: 50px;
}

.page-khuyen-mai a {
  color: #C91F17;
  text-decoration: underline;
}

.page-khuyen-mai__dark-bg a {
  color: #FFCC66;
}

.page-khuyen-mai a:hover {
  text-decoration: none;
  color: #E53935;
}

.page-khuyen-mai__dark-bg a:hover {
  color: #F4D34D;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }

  .page-khuyen-mai__section-title {
    font-size: 2em;
  }

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__step-by-step {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
  }

  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__step-item {
    padding: 20px;
  }

  .page-khuyen-mai__card-title,
  .page-khuyen-mai__step-title {
    font-size: 1.5em;
  }

  .page-khuyen-mai__intro-text,
  .page-khuyen-mai__paragraph,
  .page-khuyen-mai__list-item {
    font-size: 1em;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai {
    font-size: 16px;
    line-height: 1.6;
  }

  /* 1. Top section title + CTA */
  .page-khuyen-mai__top-section {
    padding-top: 10px !important; /* Small top padding, overriding any larger value */
    padding-bottom: 30px;
  }

  .page-khuyen-mai__main-title {
    font-size: clamp(1.8em, 7vw, 2.8em);
    margin-bottom: 10px;
  }

  .page-khuyen-mai__intro-text {
    font-size: 1em;
    margin-bottom: 20px;
    padding: 0 15px;
  }

  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  /* 2. Single-column long-form content containers */
  .page-khuyen-mai__section {
    padding: 40px 0;
  }

  .page-khuyen-mai__article-wrap {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
    padding: 0 15px;
  }

  .page-khuyen-mai__paragraph {
    font-size: 0.95em;
    padding: 0 15px;
  }

  .page-khuyen-mai__list {
    padding-left: 40px;
    padding-right: 15px;
  }

  .page-khuyen-mai__list-item {
    font-size: 0.95em;
  }

  /* 3. General images and figures */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__step-by-step {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 15px;
  }

  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__step-item {
    padding: 20px 15px;
  }

  .page-khuyen-mai__card-image,
  .page-khuyen-mai__step-figure img {
    
  }

  /* 4. Buttons and button containers */
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary,
  .page-khuyen-mai__btn-card,
  .page-khuyen-mai__btn-step,
  .page-khuyen-mai a[class*="button"],
  .page-khuyen-mai 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: 12px 20px;
    font-size: 1em;
  }

  .page-khuyen-mai__cta-buttons,
  .page-khuyen-mai__button-group,
  .page-khuyen-mai__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
    flex-direction: column; /* Ensure vertical stacking for buttons */
  }

  /* 5. Registration tutorial & FAQ (if present) */
  /* Not explicitly a separate tutorial/FAQ block on this page, but general section/list items apply */
  .page-khuyen-mai__step-title {
    font-size: 1.4em;
  }
  .page-khuyen-mai__step-description {
    font-size: 0.9em;
  }
}