.page-khuyen-mai {
  background-color: #B71C1C;
  color: #FFF5E1;
  max-width: 100%;
  overflow-x: hidden;
}

/* Hero Section */
.page-khuyen-mai__hero {
  padding: 10px 16px 24px;
  background: linear-gradient(135deg, #B71C1C 0%, #C91F17 50%, #7A0E0E 100%);
}
.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  aspect-ratio: 17/5;
  object-fit: cover;
  display: block;
  border: 2px solid #F2B544;
}
.page-khuyen-mai__hero-content {
  margin-top: 20px;
  text-align: center;
}
.page-khuyen-mai__hero-title {
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.5px;
  color: #FFF5E1;
  max-width: 800px;
  margin: 0 auto 12px;
  text-shadow: 0 2px 8px rgba(122, 14, 14, 0.5);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
}
.page-khuyen-mai__hero-description {
  color: #FFF5E1;
  max-width: 640px;
  margin: 0 auto 20px;
  line-height: 1.6;
  font-size: 1rem;
}
.page-khuyen-mai__hero-cta {
  display: inline-block;
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E;
  padding: 12px 32px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid #F2B544;
  box-shadow: 0 0 12px rgba(244, 211, 77, 0.5);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}
.page-khuyen-mai__hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(255, 204, 102, 0.8);
}

/* Promo Cards Grid */
.page-khuyen-mai__promo-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 16px;
  max-width: 1200px;
  margin: 0 auto;
}
.page-khuyen-mai__promo-card {
  background: #D32F2F;
  border: 2px solid #F2B544;
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-khuyen-mai__promo-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.page-khuyen-mai__promo-image {
  width: 100%;
  height: auto;
  aspect-ratio: 2/1;
  object-fit: cover;
  border-bottom: 2px solid #F2B544;
}
.page-khuyen-mai__promo-title {
  color: #FFF5E1;
  font-size: 1.1rem;
  padding: 12px 16px 4px;
  margin: 0;
  line-height: 1.4;
}
.page-khuyen-mai__promo-desc {
  color: #FFF5E1;
  font-size: 0.9rem;
  padding: 0 16px 12px;
  margin: 0;
  line-height: 1.5;
  opacity: 0.9;
  flex-grow: 1;
}
.page-khuyen-mai__promo-cta {
  display: block;
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E;
  padding: 10px 24px;
  text-align: center;
  margin: 0 16px 16px;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid #F2B544;
  transition: box-shadow 0.2s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}
.page-khuyen-mai__promo-cta:hover {
  box-shadow: 0 0 12px rgba(255, 204, 102, 0.6);
}

/* Guide Section */
.page-khuyen-mai__guide {
  background: #7A0E0E;
  padding: 20px 16px 40px;
}
.page-khuyen-mai__guide-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.page-khuyen-mai__guide-title {
  text-align: center;
  color: #F4D34D;
  font-size: 1.5rem;
  margin-bottom: 24px;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.page-khuyen-mai__guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.page-khuyen-mai__guide-item {
  background: #D32F2F;
  border: 2px solid #F2B544;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.page-khuyen-mai__guide-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: #7A0E0E;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 auto 12px;
  border: 1px solid #F2B544;
}
.page-khuyen-mai__guide-sub-title {
  color: #FFF5E1;
  font-size: 1rem;
  margin: 0 0 8px;
}
.page-khuyen-mai__guide-description {
  color: #FFF5E1;
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0 0 12px;
  opacity: 0.9;
}
.page-khuyen-mai__guide-link {
  color: #F4D34D;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
}
.page-khuyen-mai__guide-link:hover {
  color: #FFCC66;
  text-decoration: underline;
}

/* FAQ Section */
.page-khuyen-mai__faq {
  padding: 20px 16px 40px;
}
.page-khuyen-mai__faq-inner {
  max-width: 800px;
  margin: 0 auto;
}
.page-khuyen-mai__faq-title {
  text-align: center;
  color: #F4D34D;
  font-size: 1.5rem;
  margin-bottom: 24px;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.page-khuyen-mai__faq-item {
  background: #D32F2F;
  border: 2px solid #F2B544;
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}
.page-khuyen-mai__faq-question {
  padding: 14px 16px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #FFF5E1;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
}
.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none;
}
.page-khuyen-mai__faq-toggle {
  margin-left: 12px;
  font-size: 1.3rem;
  font-weight: 700;
  color: #F4D34D;
}
.page-khuyen-mai__faq-answer {
  padding: 0 16px 14px;
  color: #FFF5E1;
  font-size: 0.9rem;
  line-height: 1.6;
  opacity: 0.9;
  margin: 0;
}

/* Tablets */
@media (max-width: 1024px) {
  .page-khuyen-mai__promo-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-khuyen-mai__guide-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile */
@media (max-width: 768px) {
  .page-khuyen-mai {
    max-width: 100%;
    overflow-x: hidden;
  }
  .page-khuyen-mai__hero {
    padding: 8px 12px 20px;
  }
  .page-khuyen-mai__hero-image {
    aspect-ratio: 2/1;
  }
  .page-khuyen-mai__hero-title {
    font-size: clamp(1.2rem, 5vw, 1.5rem);
  }
  .page-khuyen-mai__promo-list {
    grid-template-columns: repeat(1, 1fr);
    padding: 12px;
    gap: 16px;
  }
  .page-khuyen-mai__guide-grid {
    grid-template-columns: repeat(1, 1fr);
  }
  .page-khuyen-mai__guide-title,
  .page-khuyen-mai__faq-title {
    font-size: 1.3rem;
  }
  .page-khuyen-mai img {
    max-width: 100% !important;
    height: auto !important;
  }
  .page-khuyen-mai__hero-cta,
  .page-khuyen-mai__promo-cta {
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    width: 100%;
  }
  .page-khuyen-mai__faq-question {
    font-size: 0.9rem;
  }
}