.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: #333333; /* Default text color for light body background */
  background-color: #f8f8f8;
}

.page-khuyen-mai__section {
  padding: 40px 0;
  margin-bottom: 20px;
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

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

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  margin-bottom: 40px;
  background: linear-gradient(135deg, #26A9E0, #40C0F0);
  color: #FFFFFF;
  text-align: center;
  border-radius: 0;
  box-shadow: none;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
  position: relative;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: center;
}

.page-khuyen-mai__hero-content {
  padding: 40px 20px;
  max-width: 900px;
  z-index: 1;
  position: relative;
}

.page-khuyen-mai__main-title {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #FFFFFF;
}

.page-khuyen-mai__subtitle {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

.page-khuyen-mai__btn-primary {
  display: inline-block;
  background-color: #EA7C07; /* Login color for primary action */
  color: #FFFFFF;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  font-size: 18px;
  transition: background-color 0.3s ease, transform 0.2s ease;
  border: none;
  cursor: pointer;
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #d86c06;
  transform: translateY(-2px);
}

.page-khuyen-mai__section-title {
  font-size: 36px;
  font-weight: bold;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 30px;
  position: relative;
  padding-bottom: 15px;
}

.page-khuyen-mai__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: #26A9E0;
  border-radius: 2px;
}

.page-khuyen-mai__text-block {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 15px;
  text-align: justify;
}

.page-khuyen-mai__text-block strong {
  color: #26A9E0;
}

.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: #f9f9f9;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

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

.page-khuyen-mai__card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.page-khuyen-mai__card-text {
  font-size: 15px;
  line-height: 1.6;
  color: #555555;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__btn-secondary {
  display: inline-block;
  background-color: #FFFFFF;
  color: #26A9E0;
  padding: 12px 25px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  font-size: 16px;
  border: 2px solid #26A9E0;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
  cursor: pointer;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #26A9E0;
  color: #FFFFFF;
  transform: translateY(-2px);
}

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

.page-khuyen-mai__step-card {
  background-color: #f9f9f9;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.07);
  position: relative;
  transition: transform 0.3s ease;
}

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

.page-khuyen-mai__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: #26A9E0;
  color: #FFFFFF;
  font-size: 28px;
  font-weight: bold;
  border-radius: 50%;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(38, 169, 224, 0.4);
}

.page-khuyen-mai__step-title {
  font-size: 20px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 10px;
}

.page-khuyen-mai__step-text {
  font-size: 15px;
  line-height: 1.6;
  color: #666666;
  margin-bottom: 20px;
}

.page-khuyen-mai__btn-link {
  color: #26A9E0;
  text-decoration: none;
  font-weight: bold;
  font-size: 16px;
  transition: color 0.3s ease;
}

.page-khuyen-mai__btn-link:hover {
  text-decoration: underline;
  color: #1a7fb4;
}

.page-khuyen-mai__important-note {
  background-color: #e0f7fa;
  border-left: 5px solid #26A9E0;
  padding: 20px;
  margin-top: 40px;
  border-radius: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: #333333;
}

.page-khuyen-mai__important-note strong {
  color: #26A9E0;
}

.page-khuyen-mai__terms-list {
  list-style: disc;
  padding-left: 25px;
  margin-top: 20px;
  font-size: 16px;
  line-height: 1.7;
  color: #555555;
}

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

.page-khuyen-mai__terms-list li strong {
  color: #333333;
}

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

.page-khuyen-mai__terms-section a:hover {
  color: #1a7fb4;
}

.page-khuyen-mai__app-cta-section {
  background: linear-gradient(135deg, #26A9E0, #1a7fb4);
  color: #FFFFFF;
  padding: 60px 0;
}

.page-khuyen-mai__app-cta-content {
  display: flex;
  align-items: center;
  gap: 40px;
  text-align: left;
}

.page-khuyen-mai__app-text-wrapper {
  flex: 1;
}

.page-khuyen-mai__app-cta-section .page-khuyen-mai__section-title {
  color: #FFFFFF;
  text-align: left;
}

.page-khuyen-mai__app-cta-section .page-khuyen-mai__section-title::after {
  background-color: #FFFFFF;
  left: 0;
  transform: translateX(0);
}

.page-khuyen-mai__app-cta-section .page-khuyen-mai__text-block {
  color: #e0f7fa;
  text-align: left;
}

.page-khuyen-mai__app-download-btn {
  margin-top: 20px;
  background-color: #EA7C07;
  color: #FFFFFF;
  border: none;
}

.page-khuyen-mai__app-download-btn:hover {
  background-color: #d86c06;
}

.page-khuyen-mai__app-image-wrapper {
  flex-shrink: 0;
  width: 400px;
}

.page-khuyen-mai__app-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__faq-section {
  background-color: #f0f8ff;
}

.page-khuyen-mai__faq-list {
  margin-top: 40px;
}

details.page-khuyen-mai__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

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

details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question:hover {
  background: #f5f5f5;
}

.page-khuyen-mai__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}

.page-khuyen-mai__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: #26A9E0;
  flex-shrink: 0;
  margin-left: 15px;
  width: 32px;
  text-align: center;
}

details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  font-size: 15px;
  line-height: 1.7;
  color: #555555;
}

.page-khuyen-mai__cta-final-section {
  text-align: center;
  padding: 60px 0;
  background-color: #26A9E0;
  color: #FFFFFF;
  border-radius: 0;
  box-shadow: none;
}

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

.page-khuyen-mai__cta-final-section .page-khuyen-mai__section-title::after {
  background-color: #FFFFFF;
}

.page-khuyen-mai__cta-final-section .page-khuyen-mai__text-block {
  color: #e0f7fa;
  max-width: 800px;
  margin: 0 auto 30px auto;
  text-align: center;
}

.page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-primary {
  margin-right: 15px;
}

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

.page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-secondary:hover {
  background-color: transparent;
  color: #FFFFFF;
}

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

/* Button responsive styles */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__btn-link,
.page-khuyen-mai a[class*="button"],
.page-khuyen-mai a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__hero-content .page-khuyen-mai__btn-primary,
.page-khuyen-mai__app-cta-section .page-khuyen-mai__app-download-btn,
.page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-primary,
.page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-secondary {
  max-width: 300px; /* Limit max width for desktop for aesthetic */
  width: auto;
}

/* Media Queries */
@media (max-width: 1024px) {
  .page-khuyen-mai__main-title {
    font-size: 40px;
  }
  .page-khuyen-mai__subtitle {
    font-size: 17px;
  }
  .page-khuyen-mai__section-title {
    font-size: 32px;
  }
  .page-khuyen-mai__promo-card {
    height: auto;
  }
  .page-khuyen-mai__app-cta-content {
    flex-direction: column;
    text-align: center;
  }
  .page-khuyen-mai__app-cta-section .page-khuyen-mai__section-title {
    text-align: center;
  }
  .page-khuyen-mai__app-cta-section .page-khuyen-mai__section-title::after {
    left: 50%;
    transform: translateX(-50%);
  }
  .page-khuyen-mai__app-cta-section .page-khuyen-mai__text-block {
    text-align: center;
  }
  .page-khuyen-mai__app-image-wrapper {
    width: 60%;
    max-width: 350px;
  }
}

@media (max-width: 849px) {
  .page-khuyen-mai__hero-image {
    object-fit: contain !important; /* HERO main image object-fit:contain */
    aspect-ratio: unset !important; /* Remove aspect-ratio to prevent cropping */
    max-height: 400px;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__hero-section {
    padding-top: 10px; /* Mobile top padding for hero */
  }
  .page-khuyen-mai__main-title {
    font-size: clamp(30px, 8vw, 40px);
    margin-bottom: 15px;
  }
  .page-khuyen-mai__subtitle {
    font-size: 16px;
    margin-bottom: 25px;
  }
  .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;
    padding-left: 15px;
    padding-right: 15px;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-khuyen-mai__hero-content .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__app-cta-section .page-khuyen-mai__app-download-btn {
    max-width: 100% !important;
    width: 100% !important;
  }
  .page-khuyen-mai__section {
    padding: 30px 0;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__container {
    padding: 0 15px;
  }
  .page-khuyen-mai__section-title {
    font-size: 28px;
    margin-bottom: 20px;
  }
  .page-khuyen-mai__text-block,
  .page-khuyen-mai__card-text,
  .page-khuyen-mai__step-text,
  .page-khuyen-mai__important-note,
  .page-khuyen-mai__terms-list li,
  details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer p {
    font-size: 15px;
  }
  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__promo-card {
    height: auto;
  }
  .page-khuyen-mai__card-image {
    height: 180px;
  }
  .page-khuyen-mai__card-title {
    font-size: 20px;
  }
  .page-khuyen-mai__app-cta-section .page-khuyen-mai__section-title {
    font-size: 28px;
  }
  .page-khuyen-mai__app-image-wrapper {
    width: 80%;
    max-width: 300px;
  }
  .page-khuyen-mai__faq-qtext {
    font-size: 16px;
  }
  .page-khuyen-mai__faq-toggle {
    font-size: 24px;
    width: 28px;
  }
  .page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-secondary {
    margin-right: 0;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-secondary {
    margin-bottom: 0;
  }
  .page-khuyen-mai__cta-final-section .page-khuyen-mai__container {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  /* Ensure all images and their containers are responsive */
  .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__promo-grid,
  .page-khuyen-mai__steps-grid,
  .page-khuyen-mai__faq-list,
  .page-khuyen-mai__app-cta-content {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__promo-grid { /* For products-grid like layout */
    overflow-x: hidden;
  }
  .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;
  }
  .page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-secondary {
    width: calc(100% - 30px) !important;
    margin: 0 auto 15px auto !important;
  }
  .page-khuyen-mai__cta-final-section .page-khuyen-mai__btn-secondary:last-child {
    margin-bottom: 0 !important;
  }
}