.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Consistent with non-header-offset top padding */
  padding-bottom: 60px;
  background: linear-gradient(135deg, #26A9E0, #4CAF50); /* Brand color gradient for visual appeal */
  color: #ffffff; /* Light text for dark background */
}

.page-khuyen-mai__hero-container {
  max-width: 1170px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 40px 16px;
  gap: 30px;
}

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

.page-khuyen-mai__main-title {
  font-size: 3.2em;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #ffffff;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #f0f0f0;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  box-sizing: border-box;
}

.page-khuyen-mai__btn-primary {
  background: #EA7C07; /* Login color */
  color: #ffffff;
  border: 2px solid #EA7C07;
}

.page-khuyen-mai__btn-primary:hover {
  background: #d46c06;
  border-color: #d46c06;
}

.page-khuyen-mai__btn-secondary {
  background: transparent;
  color: #ffffff;
  border: 2px solid #ffffff;
}

.page-khuyen-mai__btn-secondary:hover {
  background: #ffffff;
  color: #26A9E0;
}

.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: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: block;
}

.page-khuyen-mai__intro-section,
.page-khuyen-mai__promo-section,
.page-khuyen-mai__guide-section,
.page-khuyen-mai__faq-section {
  padding: 60px 0;
}

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

.page-khuyen-mai__dark-bg {
  background: #26A9E0;
  color: #ffffff;
}

.page-khuyen-mai__content-area {
  max-width: 1170px;
  margin: 0 auto;
  padding: 0 16px;
}

.page-khuyen-mai__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: inherit; /* Inherit from section for contrast */
}

.page-khuyen-mai__section-description {
  font-size: 1.1em;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: inherit;
}

/* Features Grid (Module 1 - Three-column round images) */
.page-khuyen-mai__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__feature-card {
  text-align: center;
  padding: 25px;
  border-radius: 12px;
  background: #f8f8f8; /* Light background for cards */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
  color: #333333;
}

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

.page-khuyen-mai__icon-box-media {
  width: 200px; /* Fixed width for circular images */
  height: 200px; /* Fixed height for circular images */
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #26A9E0; /* Brand color border */
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-khuyen-mai__icon-box-media img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Ensure image covers the circular area */
  border-radius: 50%;
  display: block;
}

.page-khuyen-mai__feature-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 15px;
  color: #26A9E0;
}

.page-khuyen-mai__feature-text {
  font-size: 1em;
  line-height: 1.6;
  color: #555555;
}

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

.page-khuyen-mai__promo-card {
  background: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  color: #333333;
}

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

.page-khuyen-mai__promo-image {
  width: 100%;
  height: 220px; /* Fixed height for promo images */
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card h3 {
  font-size: 1.4em;
  font-weight: 600;
  padding: 15px 20px 10px;
  color: #26A9E0;
}

.page-khuyen-mai__promo-card p {
  font-size: 0.95em;
  line-height: 1.6;
  padding: 0 20px 20px;
  color: #555555;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary {
  margin: 0 20px 20px;
  width: calc(100% - 40px); /* Adjust button width within card */
}

/* Guide Section */
.page-khuyen-mai__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__guide-step {
  text-align: center;
  padding: 25px;
  border-radius: 12px;
  background: #f8f8f8;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  color: #333333;
}

.page-khuyen-mai__guide-step:hover {
  transform: translateY(-5px);
  transition: transform 0.3s ease;
}

.page-khuyen-mai__step-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  background: #e0f2f7;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-khuyen-mai__step-icon img {
  width: 80%;
  height: 80%;
  object-fit: contain;
  display: block;
}

.page-khuyen-mai__step-title {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 10px;
  color: #26A9E0;
}

.page-khuyen-mai__step-text {
  font-size: 0.95em;
  line-height: 1.6;
  color: #555555;
}

.page-khuyen-mai__cta-center {
  text-align: center;
  margin-top: 50px;
}

.page-khuyen-mai__cta-center .page-khuyen-mai__btn-primary {
  padding: 15px 35px;
  font-size: 1.2em;
}

/* FAQ Section */
.page-khuyen-mai__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__faq-item {
  background: #f8f8f8;
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border: 1px solid #e0e0e0;
}

.page-khuyen-mai__faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.15em;
  font-weight: 600;
  color: #26A9E0;
  user-select: none;
}

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

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  color: #EA7C07;
  transition: transform 0.3s ease;
}

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

.page-khuyen-mai__faq-answer {
  padding: 0 25px 20px;
  font-size: 1em;
  line-height: 1.7;
  color: #555555;
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__main-title {
    font-size: 2.8em;
  }
  .page-khuyen-mai__section-title {
    font-size: 2.2em;
  }
  .page-khuyen-mai__hero-container {
    padding: 30px 16px;
  }
  .page-khuyen-mai__intro-section,
  .page-khuyen-mai__promo-section,
  .page-khuyen-mai__guide-section,
  .page-khuyen-mai__faq-section {
    padding: 50px 0;
  }
  .page-khuyen-mai__icon-box-media {
    width: 180px;
    height: 180px;
  }
}

@media (max-width: 768px) {
  /* HERO Section Mobile */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Fixed top padding */
    padding-bottom: 40px;
  }
  .page-khuyen-mai__hero-container {
    flex-direction: column;
    text-align: center;
    padding: 20px 15px;
  }
  .page-khuyen-mai__hero-content {
    order: 2;
    flex: 1 1 100%;
    min-width: unset;
  }
  .page-khuyen-mai__hero-image {
    order: 1;
    flex: 1 1 100%;
    min-width: unset;
    margin-bottom: 20px;
  }
  .page-khuyen-mai__main-title {
    font-size: 2.2em;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__hero-description {
    font-size: 1em;
    margin-bottom: 25px;
  }
  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
  }
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    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;
  }

  /* Content Sections Mobile */
  .page-khuyen-mai__intro-section,
  .page-khuyen-mai__promo-section,
  .page-khuyen-mai__guide-section,
  .page-khuyen-mai__faq-section {
    padding: 40px 0;
  }
  .page-khuyen-mai__content-area {
    padding: 0 15px;
  }
  .page-khuyen-mai__section-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  /* Module 1 (Features Grid) Mobile */
  .page-khuyen-mai__features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__feature-card {
    padding: 20px;
  }
  .page-khuyen-mai__icon-box-media {
    width: 160px; /* Smaller for mobile */
    height: 160px;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__feature-title {
    font-size: 1.3em;
  }
  .page-khuyen-mai__feature-text {
    font-size: 0.9em;
  }

  /* Promo Grid Mobile */
  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__promo-card h3 {
    font-size: 1.2em;
  }
  .page-khuyen-mai__promo-card p {
    font-size: 0.9em;
  }
  .page-khuyen-mai__promo-image {
    height: 180px;
  }

  /* Guide Section Mobile */
  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__guide-step {
    padding: 20px;
  }
  .page-khuyen-mai__step-icon {
    width: 100px;
    height: 100px;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__step-title {
    font-size: 1.2em;
  }
  .page-khuyen-mai__step-text {
    font-size: 0.9em;
  }
  .page-khuyen-mai__cta-center .page-khuyen-mai__btn-primary {
    padding: 12px 25px;
    font-size: 1.1em;
    width: 100%;
    max-width: 100%;
  }

  /* FAQ Section Mobile */
  .page-khuyen-mai__faq-item summary {
    font-size: 1em;
    padding: 15px 20px;
  }
  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 0.95em;
  }

  /* Universal Image and Container Mobile */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-khuyen-mai__section,
  .page-khuyen-mai__card,
  .page-khuyen-mai__container,
  .page-khuyen-mai__hero-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary {
    width: calc(100% - 40px) !important;
  }
}