.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: #333333;
  line-height: 1.6;
  background-color: #FFFFFF;
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, assuming shared.css handles body padding-top */
  background: linear-gradient(135deg, #26A9E0, #1A7BB0);
  color: #FFFFFF;
  text-align: center;
  padding-bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 20px;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__hero-content {
  max-width: 900px;
  padding: 0 20px;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 15px;
  color: #FFFFFF;
  letter-spacing: 0.5px;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #F0F8FF;
}

.page-khuyen-mai__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: #26A9E0;
}

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

.page-khuyen-mai__text-block {
  font-size: 1rem;
  margin-bottom: 20px;
  text-align: justify;
}

.page-khuyen-mai__text-block--white {
  color: #F0F8FF;
}

.page-khuyen-mai__overview-section {
  padding: 60px 0;
  background-color: #f8f8f8;
}

.page-khuyen-mai__promotion-types {
  padding: 60px 0;
  background: #26A9E0;
  color: #FFFFFF;
}

.page-khuyen-mai__grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  justify-content: center;
}

.page-khuyen-mai__card {
  background-color: #FFFFFF;
  color: #333333;
  border-radius: 12px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.page-khuyen-mai__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

.page-khuyen-mai__card-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 20px 20px 10px;
  color: #26A9E0;
}

.page-khuyen-mai__card-description {
  font-size: 0.95rem;
  margin: 0 20px 20px;
  flex-grow: 1;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  margin-top: auto;
  cursor: pointer;
}

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

.page-khuyen-mai__btn-primary:hover {
  background-color: #1A7BB0;
  border-color: #1A7BB0;
}

.page-khuyen-mai__btn-secondary {
  background-color: #FFFFFF;
  color: #26A9E0;
  border: 2px solid #26A9E0;
  margin: 0 20px 20px;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #E0F7FA;
  color: #1A7BB0;
  border-color: #1A7BB0;
}

.page-khuyen-mai__btn-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
  text-align: center;
}

.page-khuyen-mai__how-to-claim {
  padding: 60px 0;
  background-color: #FFFFFF;
}

.page-khuyen-mai__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-khuyen-mai__step-item {
  text-align: center;
  background-color: #F0F8FF;
  padding: 30px 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__step-icon {
  font-size: 2.5rem;
  font-weight: 700;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-khuyen-mai__step-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #333333;
}

.page-khuyen-mai__step-description {
  font-size: 0.95rem;
  color: #555555;
}

.page-khuyen-mai__step-description a {
  color: #26A9E0;
  text-decoration: underline;
}

.page-khuyen-mai__image-center {
  text-align: center;
  margin-bottom: 40px;
}

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

.page-khuyen-mai__terms-conditions {
  padding: 60px 0;
  background-color: #26A9E0;
  color: #FFFFFF;
}

.page-khuyen-mai__terms-list {
  list-style-type: disc;
  margin-left: 25px;
  margin-bottom: 30px;
  font-size: 1rem;
}

.page-khuyen-mai__terms-list li {
  margin-bottom: 10px;
  color: #F0F8FF;
}

.page-khuyen-mai__link-white {
  color: #FFFFFF;
  text-decoration: underline;
}

.page-khuyen-mai__why-choose {
  padding: 60px 0;
  background-color: #F8F8F8;
}

.page-khuyen-mai__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-khuyen-mai__benefit-item {
  background-color: #FFFFFF;
  padding: 30px 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.page-khuyen-mai__benefit-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #26A9E0;
}

.page-khuyen-mai__benefit-description {
  font-size: 0.95rem;
  color: #555555;
}

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

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

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

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  background-color: #F0F8FF;
  border-bottom: 1px solid #E0E0E0;
  list-style: none;
}

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

.page-khuyen-mai__faq-qtext {
  flex-grow: 1;
  color: #26A9E0;
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.5rem;
  font-weight: 700;
  color: #26A9E0;
  margin-left: 15px;
  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: 15px 25px;
  font-size: 1rem;
  color: #555555;
}

.page-khuyen-mai__cta-section {
  padding: 60px 0;
  background-color: #FFFFFF;
  text-align: center;
}

.page-khuyen-mai__cta-container {
  max-width: 800px;
}

/* --- Responsive Styles --- */

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

.page-khuyen-mai__section,
.page-khuyen-mai__card,
.page-khuyen-mai__container {
  max-width: 100%;
  width: 100%;
  box-sizing: border-box;
}

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

  .page-khuyen-mai__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-khuyen-mai__hero-section {
    padding-top: 10px; /* Small top padding, assuming shared.css handles body padding-top */
    padding-bottom: 30px;
  }

  .page-khuyen-mai__main-title {
    font-size: 2rem;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1rem;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
  }

  .page-khuyen-mai__grid-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__card {
    padding-bottom: 20px; /* Ensure button has space */
  }

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

  .page-khuyen-mai__card-title {
    font-size: 1.2rem;
    margin: 15px 15px 8px;
  }

  .page-khuyen-mai__card-description {
    margin: 0 15px 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-left: 15px;
    padding-right: 15px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }

  .page-khuyen-mai__btn-secondary {
    margin: 0 auto 15px auto;
  }

  .page-khuyen-mai__steps-grid,
  .page-khuyen-mai__benefits-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__faq-question {
    padding: 15px 20px;
    font-size: 1rem;
  }

  .page-khuyen-mai__faq-answer {
    padding: 10px 20px;
  }

  .page-khuyen-mai__content-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !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;
  }

  .page-khuyen-mai__cta-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;
    display: flex;
    flex-direction: column; 
  }
}