/* style/khuyen-mai.css */
.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Text Main */
  background-color: #F5F7FA; /* Background */
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding to account for fixed header, as body has padding-top */
  padding-bottom: 40px;
  background-color: #F5F7FA;
}

.page-khuyen-mai__hero-container {
  max-width: 1170px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 40px 16px;
  gap: 24px;
  text-align: left;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 50%;
  min-width: 300px;
  color: #333333;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #E53935;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1rem;
  margin-bottom: 30px;
}

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

.page-khuyen-mai__cta-buttons--center {
  justify-content: center;
  margin-top: 40px;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  text-align: center;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  border: none;
}

.page-khuyen-mai__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background-color: #ffffff;
  color: #E53935;
  border: 2px solid #E53935;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #f0f0f0;
  color: #E53935;
  transform: translateY(-2px);
}

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

.page-khuyen-mai__hero-side-image {
  max-width: 600px;
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

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

.page-khuyen-mai__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: #E53935;
  text-align: center;
  margin-bottom: 30px;
}

.page-khuyen-mai__text-block {
  font-size: 1.05rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

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

.page-khuyen-mai__icon-box {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
  transition: transform 0.3s ease;
}

.page-khuyen-mai__icon-box:hover {
  transform: translateY(-5px);
}

.page-khuyen-mai__icon-box-media {
  width: 240px;
  height: 240px;
  aspect-ratio: 1/1;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #FF5A4F;
}

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

.page-khuyen-mai__icon-box-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #E53935;
  margin-bottom: 10px;
}

.page-khuyen-mai__icon-box-text {
  font-size: 1rem;
  color: #333333;
}

.page-khuyen-mai__promo-section {
  padding: 60px 0;
  background-color: #E53935; /* Main color as dark background */
  color: #ffffff;
}

.page-khuyen-mai__promo-section .page-khuyen-mai__section-title {
  color: #ffffff;
}

.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;
  color: #333333;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-card-image {
  width: 100%;
  height: 250px;
  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: 1.35rem;
  font-weight: 600;
  color: #E53935;
  margin-bottom: 15px;
}

.page-khuyen-mai__promo-card-text {
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary {
  width: 100%;
  margin-top: auto; /* Push button to bottom */
}

.page-khuyen-mai__guide-section {
  padding: 60px 0;
  background-color: #F5F7FA;
}

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

.page-khuyen-mai__guide-step {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-khuyen-mai__guide-icon {
  font-size: 2.5rem;
  font-weight: 700;
  color: #FF5A4F;
  margin-bottom: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #fde0df; /* Lighter shade of auxiliary color */
}

.page-khuyen-mai__guide-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: #E53935;
  margin-bottom: 10px;
}

.page-khuyen-mai__guide-text {
  font-size: 0.95rem;
  color: #333333;
}

.page-khuyen-mai__faq-section {
  padding: 60px 0;
  background-color: #F5F7FA;
}

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

.page-khuyen-mai__faq-item {
  background-color: #ffffff;
  border: 1px solid #E0E0E0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-khuyen-mai__faq-item[open] {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #333333;
  cursor: pointer;
  background-color: #ffffff;
  transition: background-color 0.3s ease;
  list-style: none; /* Hide default marker */
}

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

.page-khuyen-mai__faq-question:hover {
  background-color: #f9f9f9;
}

.page-khuyen-mai__faq-qtext {
  flex-grow: 1;
  color: #E53935;
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  margin-left: 15px;
  color: #FF5A4F;
}

.page-khuyen-mai__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  color: #555555;
  line-height: 1.6;
}

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

/* Mobile responsive styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-container {
    padding: 30px 16px;
  }
  .page-khuyen-mai__main-title {
    font-size: clamp(2rem, 5vw, 2.8rem);
  }
  .page-khuyen-mai__hero-description {
    font-size: 1rem;
  }
  .page-khuyen-mai__cta-buttons {
    justify-content: center;
  }
  .page-khuyen-mai__hero-content {
    text-align: center;
  }
  .page-khuyen-mai__hero-image {
    order: -1; /* Image above text on smaller screens */
    margin-bottom: 20px;
  }
  .page-khuyen-mai__icon-box-media {
    width: 200px;
    height: 200px;
  }
  .page-khuyen-mai__promo-card-image {
    height: 200px;
  }
  .page-khuyen-mai__promo-card-title {
    font-size: 1.2rem;
  }
  .page-khuyen-mai__guide-icon {
    font-size: 2rem;
    width: 50px;
    height: 50px;
  }
  .page-khuyen-mai__guide-title {
    font-size: 1.2rem;
  }
  .page-khuyen-mai__faq-question {
    font-size: 1.05rem;
    padding: 18px 20px;
  }
  .page-khuyen-mai__faq-toggle {
    font-size: 1.5rem;
  }
}

@media (max-width: 768px) {
  /* HERO section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px !important;
  }
  .page-khuyen-mai__hero-container {
    flex-direction: column;
    padding: 20px 15px !important;
    gap: 20px;
  }
  .page-khuyen-mai__hero-content {
    flex: 1 1 100% !important;
    text-align: center;
  }
  .page-khuyen-mai__main-title {
    font-size: clamp(1.8rem, 7vw, 2.2rem) !important;
    margin-bottom: 15px !important;
  }
  .page-khuyen-mai__hero-description {
    font-size: 0.95rem !important;
    margin-bottom: 25px !important;
  }
  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 10px;
    width: 100% !important;
    max-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: 12px 20px !important;
  }
  .page-khuyen-mai__hero-image {
    flex: 1 1 100% !important;
    order: -1;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__hero-side-image {
    max-width: 100% !important;
    height: auto !important;
  }

  /* Module 1 (Intro Section) */
  .page-khuyen-mai__intro-section {
    padding: 40px 0 !important;
  }
  .page-khuyen-mai__content-area {
    padding: 20px 15px !important;
  }
  .page-khuyen-mai__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem) !important;
    margin-bottom: 25px !important;
  }
  .page-khuyen-mai__text-block {
    font-size: 0.95rem !important;
    margin-bottom: 30px !important;
  }
  .page-khuyen-mai__intro-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .page-khuyen-mai__icon-box-media {
    width: 180px !important;
    height: 180px !important;
    margin-bottom: 15px !important;
  }
  .page-khuyen-mai__icon-box-title {
    font-size: 1.3rem !important;
  }
  .page-khuyen-mai__icon-box-text {
    font-size: 0.9rem !important;
  }

  /* Promo Section */
  .page-khuyen-mai__promo-section {
    padding: 40px 0 !important;
  }
  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .page-khuyen-mai__promo-card-image {
    height: 180px !important;
  }
  .page-khuyen-mai__promo-card-content {
    padding: 20px !important;
  }
  .page-khuyen-mai__promo-card-title {
    font-size: 1.15rem !important;
    margin-bottom: 10px !important;
  }
  .page-khuyen-mai__promo-card-text {
    font-size: 0.85rem !important;
    margin-bottom: 15px !important;
  }

  /* Guide Section */
  .page-khuyen-mai__guide-section {
    padding: 40px 0 !important;
  }
  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .page-khuyen-mai__guide-step {
    padding: 25px !important;
  }
  .page-khuyen-mai__guide-icon {
    font-size: 2.2rem !important;
    width: 55px !important;
    height: 55px !important;
    margin-bottom: 10px !important;
  }
  .page-khuyen-mai__guide-title {
    font-size: 1.25rem !important;
  }
  .page-khuyen-mai__guide-text {
    font-size: 0.9rem !important;
  }
  .page-khuyen-mai__cta-buttons--center {
    margin-top: 30px !important;
  }

  /* FAQ Section */
  .page-khuyen-mai__faq-section {
    padding: 40px 0 !important;
  }
  .page-khuyen-mai__faq-list {
    margin-top: 30px !important;
  }
  .page-khuyen-mai__faq-item {
    margin-bottom: 10px !important;
  }
  .page-khuyen-mai__faq-question {
    padding: 15px 20px !important;
    font-size: 1rem !important;
  }
  .page-khuyen-mai__faq-toggle {
    font-size: 1.3rem !important;
    margin-left: 10px !important;
  }
  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px !important;
    font-size: 0.9rem !important;
  }

  /* Universal image & container rules for mobile */
  .page-khuyen-mai img {
    max-width: 100% !important;
    height: auto !important;
  }
  .page-khuyen-mai__section,
  .page-khuyen-mai__card,
  .page-khuyen-mai__container,
  .page-khuyen-mai__intro-grid,
  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__guide-steps,
  .page-khuyen-mai__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden;
  }
}