.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: #FFF5E1; /* Text Main */
  background-color: #B71C1C; /* Background */
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, assuming body handles --header-offset */
  padding-bottom: 60px;
  background-color: #C91F17; /* Primary Color */
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-khuyen-mai__hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 50%;
  min-width: 300px;
  text-align: left;
}

.page-khuyen-mai__hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #FFF5E1; /* Text Main */
}

.page-khuyen-mai__hero-description {
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #FFF5E1;
}

.page-khuyen-mai__hero-cta-group {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.page-khuyen-mai__hero-image {
  flex: 1 1 40%;
  min-width: 300px;
  text-align: center;
}

.page-khuyen-mai__hero-side-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Button Gold Gradient */
  color: #7A0E0E; /* Deep Red */
  border: 2px solid #F2B544; /* Border Gold */
}

.page-khuyen-mai__btn-primary:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 216, 106, 0.4);
}

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

.page-khuyen-mai__btn-secondary:hover {
  background-color: rgba(255, 245, 225, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 245, 225, 0.2);
}

.page-khuyen-mai__intro-section,
.page-khuyen-mai__promo-list-section,
.page-khuyen-mai__guide-section,
.page-khuyen-mai__faq-section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-khuyen-mai__intro-section {
  text-align: center;
  background-color: #B71C1C; /* Background */
  color: #FFF5E1;
}

.page-khuyen-mai__intro-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #FFF5E1;
}

.page-khuyen-mai__intro-description {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: center;
}

.page-khuyen-mai__feature-item {
  flex: 1 1 300px;
  max-width: 350px;
  background-color: #D32F2F; /* Card BG */
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.page-khuyen-mai__feature-item:hover {
  transform: translateY(-5px);
}

.page-khuyen-mai__icon-box-media {
  width: 150px;
  height: 150px;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #F2B544; /* Border Gold */
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #C91F17;
}

.page-khuyen-mai__icon-box-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.page-khuyen-mai__feature-heading {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #FFD86A; /* Gold from button gradient */
}

.page-khuyen-mai__feature-text {
  font-size: 1rem;
  line-height: 1.6;
  color: #FFF5E1;
}

.page-khuyen-mai__promo-list-section {
  background-color: #B71C1C; /* Background */
  color: #FFF5E1;
  text-align: center;
}

.page-khuyen-mai__promo-list-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #FFF5E1;
}

.page-khuyen-mai__promo-list-description {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-khuyen-mai__promo-card {
  background-color: #D32F2F; /* Card BG */
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
}

.page-khuyen-mai__promo-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-khuyen-mai__promo-card-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #FFD86A; /* Gold from button gradient */
}

.page-khuyen-mai__promo-card-text {
  font-size: 1rem;
  line-height: 1.6;
  color: #FFF5E1;
  margin-bottom: 20px;
}

.page-khuyen-mai__promo-card-content .page-khuyen-mai__btn-primary {
  width: 100%;
}

.page-khuyen-mai__view-all-promos {
  margin-top: 20px;
}

.page-khuyen-mai__guide-section {
  background-color: #C91F17; /* Primary Color */
  color: #FFF5E1;
  text-align: center;
}

.page-khuyen-mai__guide-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #FFF5E1;
}

.page-khuyen-mai__guide-description {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-khuyen-mai__step-item {
  background-color: #D32F2F; /* Card BG */
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-khuyen-mai__step-image {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 10px;
  margin-bottom: 20px;
  display: block;
}

.page-khuyen-mai__step-heading {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #FFD86A; /* Gold from button gradient */
}

.page-khuyen-mai__step-text {
  font-size: 1rem;
  line-height: 1.6;
  color: #FFF5E1;
}

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

.page-khuyen-mai__faq-section {
  background-color: #B71C1C; /* Background */
  color: #FFF5E1;
}

.page-khuyen-mai__faq-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 40px;
  text-align: center;
  color: #FFF5E1;
}

.page-khuyen-mai__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-khuyen-mai__faq-item {
  background-color: #D32F2F; /* Card BG */
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  color: #FFD86A; /* Gold from button gradient */
  cursor: pointer;
  position: relative;
}

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

.page-khuyen-mai__faq-qtext {
  flex-grow: 1;
  text-align: left;
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  margin-left: 15px;
  color: #FFF5E1;
}

.page-khuyen-mai__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  line-height: 1.6;
  color: #FFF5E1;
}

.page-khuyen-mai__faq-answer p {
  margin-bottom: 0;
}

/* General image responsiveness */
.page-khuyen-mai img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-container {
    flex-direction: column-reverse;
    text-align: center;
  }

  .page-khuyen-mai__hero-content {
    text-align: center;
  }

  .page-khuyen-mai__hero-cta-group {
    justify-content: center;
  }

  .page-khuyen-mai__feature-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

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

  .page-khuyen-mai__guide-steps {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

@media (max-width: 768px) {
  /* HERO section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }
  .page-khuyen-mai__hero-container {
    padding: 20px 15px;
    gap: 20px;
  }
  .page-khuyen-mai__hero-title {
    font-size: 2rem;
  }
  .page-khuyen-mai__hero-description {
    font-size: 1rem;
  }
  .page-khuyen-mai__hero-cta-group {
    flex-direction: column;
    gap: 10px;
  }
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 0.95rem;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }
  
  /* Intro section */
  .page-khuyen-mai__intro-section,
  .page-khuyen-mai__promo-list-section,
  .page-khuyen-mai__guide-section,
  .page-khuyen-mai__faq-section {
    padding: 40px 15px;
  }
  .page-khuyen-mai__intro-title,
  .page-khuyen-mai__promo-list-title,
  .page-khuyen-mai__guide-title,
  .page-khuyen-mai__faq-title {
    font-size: 2rem;
  }
  .page-khuyen-mai__intro-description,
  .page-khuyen-mai__promo-list-description,
  .page-khuyen-mai__guide-description {
    font-size: 0.95rem;
  }

  /* Module 1 three-column round images */
  .page-khuyen-mai__feature-grid {
    flex-direction: column;
    gap: 20px;
  }
  .page-khuyen-mai__feature-item {
    max-width: 100%;
    padding: 25px;
  }
  .page-khuyen-mai__icon-box-media {
    width: 120px;
    height: 120px;
    margin-bottom: 15px;
    border-width: 3px;
  }
  .page-khuyen-mai__icon-box-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
  }
  .page-khuyen-mai__feature-heading {
    font-size: 1.3rem;
  }
  .page-khuyen-mai__feature-text {
    font-size: 0.9rem;
  }

  /* Promo list/cards */
  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__promo-card-image {
    height: 180px;
  }
  .page-khuyen-mai__promo-card-title {
    font-size: 1.2rem;
  }
  .page-khuyen-mai__promo-card-text {
    font-size: 0.9rem;
  }

  /* Guide section */
  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__step-heading {
    font-size: 1.3rem;
  }
  .page-khuyen-mai__step-text {
    font-size: 0.9rem;
  }
  .page-khuyen-mai__cta-bottom .page-khuyen-mai__btn-primary {
    width: 100% !important;
  }

  /* FAQ section */
  .page-khuyen-mai__faq-list {
    padding: 0;
  }
  .page-khuyen-mai__faq-item summary {
    padding: 15px 20px;
    font-size: 1rem;
  }
  .page-khuyen-mai__faq-toggle {
    font-size: 1.5rem;
  }
  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 0.9rem;
  }

  /* General images and containers */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-khuyen-mai__hero-section,
  .page-khuyen-mai__intro-section,
  .page-khuyen-mai__promo-list-section,
  .page-khuyen-mai__guide-section,
  .page-khuyen-mai__faq-section,
  .page-khuyen-mai__hero-container,
  .page-khuyen-mai__intro-container,
  .page-khuyen-mai__promo-list-container,
  .page-khuyen-mai__guide-container,
  .page-khuyen-mai__faq-container,
  .page-khuyen-mai__feature-item,
  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__step-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  /* Ensure no double padding from specific sections */
  .page-khuyen-mai__hero-container,
  .page-khuyen-mai__intro-container,
  .page-khuyen-mai__promo-list-container,
  .page-khuyen-mai__guide-container,
  .page-khuyen-mai__faq-container {
    padding-left: 0;
    padding-right: 0;
  }
  .page-khuyen-mai__hero-content,
  .page-khuyen-mai__hero-image {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__hero-cta-group {
    padding: 0 15px;
  }
  .page-khuyen-mai__feature-grid,
  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__guide-steps {
    padding: 0 15px;
  }
  .page-khuyen-mai__view-all-promos,
  .page-khuyen-mai__cta-bottom {
    padding: 0 15px;
  }
  .page-khuyen-mai__faq-list {
    padding: 0 15px;
  }
}