.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: #333333; /* Default text color for light body background */
  background-color: #FFFFFF; /* Body background from shared.css */
}

/* Hero Section */
.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 40px;
  background-color: #FFFFFF; /* Ensures light background for text */
}

.page-khuyen-mai__hero-container {
  max-width: 1170px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 40px 16px;
  gap: 40px; /* Increased gap for better spacing */
}

.page-khuyen-mai__hero-content {
  flex: 1 1 50%;
  min-width: 300px;
  padding-right: 20px;
  color: #333333; /* Ensure dark text on light background */
}

.page-khuyen-mai__hero-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem); /* H1 clamp font size */
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #017439; /* Brand color for H1 */
}

.page-khuyen-mai__hero-description {
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: 30px;
}

.page-khuyen-mai__hero-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

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

.page-khuyen-mai__hero-main-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* General Section Styles */
.page-khuyen-mai__section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: #017439; /* Brand color for H2 */
}

.page-khuyen-mai__section-description {
  font-size: 1.1rem;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: #555555;
}

.page-khuyen-mai__content-area {
  max-width: 1170px;
  margin: 0 auto;
  padding: 40px 16px;
  box-sizing: border-box;
}

/* Intro Section */
.page-khuyen-mai__intro-section {
  padding: 60px 0;
  background-color: #FFFFFF; /* Light background */
  color: #333333;
}

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

.page-khuyen-mai__feature-item {
  text-align: center;
  padding: 20px;
  border-radius: 12px;
  background-color: #f9f9f9;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

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

.page-khuyen-mai__icon-box-media {
  width: 200px;
  height: 200px;
  aspect-ratio: 1 / 1;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #017439; /* Brand color border */
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.page-khuyen-mai__feature-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #017439;
}

.page-khuyen-mai__feature-text {
  font-size: 1rem;
  line-height: 1.5;
  color: #555555;
}

/* Promo List Section */
.page-khuyen-mai__promo-list-section {
  padding: 60px 0;
  background-color: #017439; /* Brand color background */
  color: #FFFFFF; /* White text for dark background */
}

.page-khuyen-mai__promo-list-section .page-khuyen-mai__section-title,
.page-khuyen-mai__promo-list-section .page-khuyen-mai__section-description {
  color: #FFFFFF; /* Ensure white text */
}

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

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

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-8px);
}

.page-khuyen-mai__promo-card-image {
  width: 100%;
  height: 200px; /* Fixed height for consistent card appearance */
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card-content {
  padding: 25px;
}

.page-khuyen-mai__promo-card-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #017439;
}

.page-khuyen-mai__promo-card-text {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 20px;
  color: #555555;
}

.page-khuyen-mai__btn-text {
  display: inline-block;
  color: #C30808; /* Use defined color for 'Đăng ký/Đăng nhập' but here for 'Xem chi tiết' */
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-khuyen-mai__btn-text:hover {
  color: #a00606;
  text-decoration: underline;
}

/* Benefits Section */
.page-khuyen-mai__benefits-section {
  padding: 60px 0;
  background-color: #f5f5f5; /* Light grey background */
  color: #333333;
}

.page-khuyen-mai__benefits-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.page-khuyen-mai__benefit-item {
  background-color: #FFFFFF;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__benefit-heading {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #017439;
}

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

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: 60px 0;
  background-color: #FFFFFF;
  color: #333333;
}

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

.page-khuyen-mai__faq-item {
  margin-bottom: 15px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  background-color: #f9f9f9;
}

.page-khuyen-mai__faq-item[open] {
  background-color: #ffffff;
  border-color: #017439;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #017439;
  cursor: pointer;
  list-style: none; /* Hide default marker for details summary */
  position: relative;
}

.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none; /* Hide default marker for Chrome */
}

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

.page-khuyen-mai__faq-toggle {
  font-size: 1.5rem;
  font-weight: 700;
  margin-left: 15px;
  color: #017439;
}

.page-khuyen-mai__faq-answer {
  padding: 10px 25px 20px;
  font-size: 1rem;
  line-height: 1.6;
  color: #555555;
}

/* Call to Action Section */
.page-khuyen-mai__cta-section {
  padding: 60px 0;
  background-color: #017439; /* Brand color background */
  color: #FFFFFF; /* White text for dark background */
  text-align: center;
}

.page-khuyen-mai__cta-section .page-khuyen-mai__section-title,
.page-khuyen-mai__cta-section .page-khuyen-mai__section-description {
  color: #FFFFFF; /* Ensure white text */
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap; /* Allow buttons to wrap */
}

/* Button Styles */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%; /* Ensure button responsiveness */
  box-sizing: border-box;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow long words to break */
}

.page-khuyen-mai__btn-primary {
  background-color: #C30808; /* Red for primary action (Login/Register) */
  color: #FFFF00; /* Yellow text for Login/Register */
  border: 2px solid #C30808;
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #a00606;
  border-color: #a00606;
}

.page-khuyen-mai__btn-secondary {
  background-color: #FFFFFF;
  color: #017439; /* Brand green text */
  border: 2px solid #017439;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #e0e0e0;
  color: #005f2b;
  border-color: #005f2b;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-container {
    flex-direction: column;
    text-align: center;
  }
  .page-khuyen-mai__hero-content {
    padding-right: 0;
  }
  .page-khuyen-mai__hero-image {
    order: -1; /* Image above text on medium screens */
    margin-bottom: 30px;
  }
  .page-khuyen-mai__hero-buttons {
    justify-content: center;
  }
}

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

  /* Hero Section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Small top padding for mobile */
    padding-bottom: 30px;
  }
  .page-khuyen-mai__hero-container {
    padding: 20px 15px;
    gap: 20px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__hero-content {
    min-width: unset;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__hero-title {
    font-size: 2.2rem;
    line-height: 1.3;
  }
  .page-khuyen-mai__hero-description {
    font-size: 1rem;
  }
  .page-khuyen-mai__hero-buttons {
    flex-direction: column;
    gap: 10px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__hero-main-img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }

  /* Section Titles & Descriptions */
  .page-khuyen-mai__section-title {
    font-size: 1.8rem;
    line-height: 1.3;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__section-description {
    font-size: 0.95rem;
    padding-left: 15px;
    padding-right: 15px;
    margin-bottom: 30px;
  }

  /* Content Area */
  .page-khuyen-mai__content-area {
    padding: 30px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Intro Section - Features Grid */
  .page-khuyen-mai__intro-section {
    padding: 40px 0;
  }
  .page-khuyen-mai__features-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
    gap: 20px;
  }
  .page-khuyen-mai__feature-item {
    padding: 15px;
  }
  /* Module 1 circular image - specific rule */
  .page-khuyen-mai__icon-box-media {
    width: 200px; /* Must be >= 200px */
    height: 200px; /* Must be >= 200px */
    margin: 0 auto 15px;
    border-width: 3px;
  }
  .page-khuyen-mai__icon-box-media img {
    height: 100% !important; /* Ensure fill circular container */
  }
  .page-khuyen-mai__feature-title {
    font-size: 1.3rem;
  }
  .page-khuyen-mai__feature-text {
    font-size: 0.9rem;
  }

  /* Promo List Section */
  .page-khuyen-mai__promo-list-section {
    padding: 40px 0;
  }
  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
    gap: 20px;
  }
  .page-khuyen-mai__promo-card-image {
    height: 180px; /* Slightly smaller fixed height for mobile cards */
  }
  .page-khuyen-mai__promo-card-content {
    padding: 20px;
  }
  .page-khuyen-mai__promo-card-title {
    font-size: 1.2rem;
  }
  .page-khuyen-mai__promo-card-text {
    font-size: 0.9rem;
  }

  /* Benefits Section */
  .page-khuyen-mai__benefits-section {
    padding: 40px 0;
  }
  .page-khuyen-mai__benefits-list {
    grid-template-columns: 1fr; /* Single column on mobile */
    gap: 20px;
  }
  .page-khuyen-mai__benefit-item {
    padding: 20px;
  }
  .page-khuyen-mai__benefit-heading {
    font-size: 1.3rem;
  }
  .page-khuyen-mai__benefit-text {
    font-size: 0.95rem;
  }

  /* FAQ Section */
  .page-khuyen-mai__faq-section {
    padding: 40px 0;
  }
  .page-khuyen-mai__faq-list {
    margin-top: 30px;
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }
  .page-khuyen-mai__faq-toggle {
    font-size: 1.3rem;
  }
  .page-khuyen-mai__faq-answer {
    padding: 8px 20px 15px;
    font-size: 0.9rem;
  }

  /* Call to Action Section */
  .page-khuyen-mai__cta-section {
    padding: 40px 0;
  }
  .page-khuyen-mai__cta-buttons {
    flex-direction: column; /* Stack buttons vertically */
    gap: 10px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Universal Image and Button Responsive Rules */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__section,
  .page-khuyen-mai__card,
  .page-khuyen-mai__container,
  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__feature-item,
  .page-khuyen-mai__benefit-item,
  .page-khuyen-mai__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary,
  .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-left: 15px;
    padding-right: 15px;
  }

  /* Button containers on mobile */
  .page-khuyen-mai__cta-buttons,
  .page-khuyen-mai__hero-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;
  }
  .page-khuyen-mai__cta-buttons {
    display: flex;
    flex-direction: column; /* Ensure vertical stacking for CTA buttons */
  }
}