/* style/khuyen-mai.css */
.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: #333333;
  background-color: #FFFFFF;
}

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

.page-khuyen-mai__section-title {
  font-size: 36px;
  font-weight: 700;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-khuyen-mai__section-description {
  font-size: 18px;
  color: #555555;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.5;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding as body handles header offset */
  padding-bottom: 60px;
  background: linear-gradient(135deg, #e0f7fa, #bbdefb);
}

.page-khuyen-mai__hero-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  max-width: 1170px;
  margin: 0 auto;
  padding: 40px 16px;
  box-sizing: border-box;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 45%;
  min-width: 300px;
  color: #1a237e; /* Darker text for contrast on light blue */
}

.page-khuyen-mai__hero-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 900;
  color: #0d47a1;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-khuyen-mai__hero-description {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #333333;
}

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

.page-khuyen-mai__hero-image {
  flex: 1 1 45%;
  min-width: 300px;
  text-align: center;
}

.page-khuyen-mai__hero-side-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  display: block;
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background-color: #26A9E0;
  color: #FFFFFF;
  border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #1e88e5;
  border-color: #1e88e5;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background-color: #FFFFFF;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #e3f2fd;
  color: #1e88e5;
  border-color: #1e88e5;
  transform: translateY(-2px);
}

/* Intro Section */
.page-khuyen-mai__intro-section {
  padding: 60px 0;
  background-color: #f8f9fa; /* Light background */
}

.page-khuyen-mai__icon-box-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-khuyen-mai__icon-box {
  text-align: center;
  padding: 25px;
  background-color: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.page-khuyen-mai__icon-box:hover {
  transform: translateY(-8px);
}

.page-khuyen-mai__icon-box-media {
  width: 180px;
  height: 180px;
  aspect-ratio: 1 / 1;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #26A9E0;
  box-shadow: 0 0 0 8px rgba(38, 169, 224, 0.2);
}

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

.page-khuyen-mai__icon-box-title {
  font-size: 24px;
  font-weight: 700;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-khuyen-mai__icon-box-text {
  font-size: 16px;
  color: #555555;
  line-height: 1.6;
}

/* Promo Cards Section */
.page-khuyen-mai__promo-cards-section {
  padding: 60px 0;
  background-color: #26A9E0; /* Brand color background */
  color: #FFFFFF; /* White text for contrast */
}

.page-khuyen-mai__promo-cards-section .page-khuyen-mai__section-title,
.page-khuyen-mai__promo-cards-section .page-khuyen-mai__section-description {
  color: #FFFFFF;
}

.page-khuyen-mai__promo-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-khuyen-mai__promo-card {
  background-color: #FFFFFF;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

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

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

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

.page-khuyen-mai__promo-card-title {
  font-size: 22px;
  font-weight: 700;
  color: #26A9E0;
  margin-bottom: 15px;
  line-height: 1.3;
}

.page-khuyen-mai__promo-card-text {
  font-size: 16px;
  color: #555555;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary {
  align-self: flex-start;
  padding: 10px 20px;
  font-size: 16px;
}

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

.page-khuyen-mai__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-khuyen-mai__guide-step {
  text-align: center;
  padding: 30px;
  background-color: #f0f8ff;
  border-radius: 12px;
  border: 1px solid #e0f7fa;
  position: relative;
  overflow: hidden;
}

.page-khuyen-mai__guide-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #26A9E0;
  color: #FFFFFF;
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(38, 169, 224, 0.4);
}

.page-khuyen-mai__guide-step-title {
  font-size: 22px;
  font-weight: 700;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-khuyen-mai__guide-step-text {
  font-size: 16px;
  color: #555555;
  line-height: 1.6;
}

.page-khuyen-mai__cta-section {
  text-align: center;
  margin-top: 60px;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: 60px 0;
  background-color: #26A9E0; /* Brand color background */
  color: #FFFFFF;
}

.page-khuyen-mai__faq-section .page-khuyen-mai__section-title {
  color: #FFFFFF;
}

.page-khuyen-mai__faq-list {
  max-width: 900px;
  margin: 50px auto 0;
}

.page-khuyen-mai__faq-item {
  background-color: #FFFFFF;
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  color: #333333;
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 18px;
  font-weight: 600;
  color: #26A9E0;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-khuyen-mai__faq-toggle {
  font-size: 24px;
  font-weight: 700;
  color: #26A9E0;
  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: 16px;
  line-height: 1.6;
  color: #555555;
}

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

  .page-khuyen-mai__hero-content {
    order: 2;
  }

  .page-khuyen-mai__hero-image {
    order: 1;
    margin-bottom: 30px;
  }

  .page-khuyen-mai__hero-title {
    font-size: clamp(30px, 5vw, 42px);
  }

  .page-khuyen-mai__hero-description {
    font-size: 17px;
  }

  .page-khuyen-mai__icon-box-media {
    width: 160px;
    height: 160px;
  }

  .page-khuyen-mai__promo-card-image {
    height: 180px;
  }

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

  .page-khuyen-mai__faq-question {
    font-size: 17px;
    padding: 16px 20px;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__container {
    padding: 30px 15px;
  }

  .page-khuyen-mai__section-title {
    font-size: 28px;
    margin-bottom: 15px;
  }

  .page-khuyen-mai__section-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  /* HERO Section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }

  .page-khuyen-mai__hero-container {
    padding: 30px 15px;
    gap: 20px;
  }

  .page-khuyen-mai__hero-title {
    font-size: clamp(28px, 6vw, 38px);
    margin-bottom: 15px;
  }

  .page-khuyen-mai__hero-description {
    font-size: 16px;
    margin-bottom: 25px;
  }

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    gap: 10px;
  }

  /* Buttons */
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    font-size: 16px;
    padding: 12px 20px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-khuyen-mai__cta-section {
    flex-direction: column;
    gap: 10px;
    margin-top: 40px;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Intro Section - Module 1 */
  .page-khuyen-mai__intro-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__icon-box-grid {
    grid-template-columns: 1fr;
    margin-top: 30px;
  }

  .page-khuyen-mai__icon-box-media {
    width: 150px;
    height: 150px;
    border: 3px solid #26A9E0;
    box-shadow: 0 0 0 6px rgba(38, 169, 224, 0.2);
  }

  .page-khuyen-mai__icon-box-title {
    font-size: 20px;
  }

  .page-khuyen-mai__icon-box-text {
    font-size: 15px;
  }

  /* Promo Cards Section */
  .page-khuyen-mai__promo-cards-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__promo-card-grid {
    grid-template-columns: 1fr;
    margin-top: 30px;
  }

  .page-khuyen-mai__promo-card-image {
    height: 160px;
  }

  .page-khuyen-mai__promo-card-title {
    font-size: 20px;
  }

  .page-khuyen-mai__promo-card-text {
    font-size: 15px;
  }

  /* Guide Section */
  .page-khuyen-mai__guide-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr;
    margin-top: 30px;
  }

  .page-khuyen-mai__guide-step-number {
    width: 50px;
    height: 50px;
    font-size: 28px;
    margin-bottom: 15px;
  }

  .page-khuyen-mai__guide-step-title {
    font-size: 20px;
  }

  .page-khuyen-mai__guide-step-text {
    font-size: 15px;
  }

  /* FAQ Section */
  .page-khuyen-mai__faq-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__faq-list {
    margin-top: 30px;
  }

  .page-khuyen-mai__faq-question {
    font-size: 16px;
    padding: 14px 20px;
  }

  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 15px;
  }

  /* General Image & Container rules for mobile */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-khuyen-mai__section,
  .page-khuyen-mai__card,
  .page-khuyen-mai__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
}