.page-khuyen-mai__hero-section {
  padding-top: 10px;
  padding-bottom: 60px;
  background-color: #F4F7FB;
  color: #1F2D3D;
}

.page-khuyen-mai__hero-container {
  max-width: 1170px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 40px 16px;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 45%;
  min-width: 300px;
}

.page-khuyen-mai__hero-title {
  font-size: 2.8em;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #1F2D3D;
  max-width: 600px;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #1F2D3D;
  max-width: 550px;
}

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

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

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

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

.page-khuyen-mai__btn-secondary {
  background: #ffffff;
  color: #2F6BFF;
  border: 2px solid #2F6BFF;
}

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

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

.page-khuyen-mai__hero-side-image {
  max-width: 600px;
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__promotions-list-section {
  padding: 60px 0;
  background-color: #2F6BFF;
  color: #ffffff;
}

.page-khuyen-mai__dark-section {
  background-color: #2F6BFF;
  color: #ffffff;
}

.page-khuyen-mai__light-bg {
  background-color: #F4F7FB;
  color: #1F2D3D;
}

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

.page-khuyen-mai__section-title {
  font-size: 2.2em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: inherit;
}

.page-khuyen-mai__section-description {
  font-size: 1.1em;
  line-height: 1.6;
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: inherit;
}

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

.page-khuyen-mai__promo-card {
  background-color: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

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

.page-khuyen-mai__promo-card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  color: #1F2D3D;
}

.page-khuyen-mai__promo-card-title {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-khuyen-mai__promo-card-title a {
  color: #1F2D3D;
  text-decoration: none;
}

.page-khuyen-mai__promo-card-title a:hover {
  color: #2F6BFF;
}

.page-khuyen-mai__promo-card-text {
  font-size: 0.95em;
  line-height: 1.5;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__btn-small {
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 0.9em;
  font-weight: 600;
  text-decoration: none;
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  display: inline-block;
  align-self: flex-start;
  transition: opacity 0.3s ease;
  box-sizing: border-box;
}

.page-khuyen-mai__btn-small:hover {
  opacity: 0.9;
}

.page-khuyen-mai__how-to-participate-section {
  padding: 60px 0;
  background-color: #F4F7FB;
  color: #1F2D3D;
}

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

.page-khuyen-mai__step-item {
  background-color: #ffffff;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-khuyen-mai__step-image {
  width: 100%;
  max-width: 250px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-khuyen-mai__step-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 10px;
  color: #2F6BFF;
}

.page-khuyen-mai__step-text {
  font-size: 0.95em;
  line-height: 1.6;
  color: #1F2D3D;
}

.page-khuyen-mai__terms-conditions-section {
  padding: 60px 0;
  background-color: #F4F7FB;
  color: #1F2D3D;
}

.page-khuyen-mai__content-area {
  font-size: 1em;
  line-height: 1.7;
  color: #1F2D3D;
}

.page-khuyen-mai__content-area p {
  margin-bottom: 15px;
}

.page-khuyen-mai__content-area ul {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 20px;
}

.page-khuyen-mai__content-area li {
  margin-bottom: 8px;
}

.page-khuyen-mai__content-area a {
  color: #2F6BFF;
  text-decoration: underline;
}

.page-khuyen-mai__content-area a:hover {
  color: #6FA3FF;
}

.page-khuyen-mai__why-choose-section {
  padding: 60px 0;
  background-color: #2F6BFF;
  color: #ffffff;
}

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

.page-khuyen-mai__benefit-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-khuyen-mai__benefit-image {
  width: 100%;
  max-width: 200px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-khuyen-mai__benefit-title {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 10px;
  color: #ffffff;
}

.page-khuyen-mai__benefit-text {
  font-size: 0.95em;
  line-height: 1.6;
  color: #ffffff;
}

.page-khuyen-mai__faq-section {
  padding: 60px 0;
  background-color: #F4F7FB;
  color: #1F2D3D;
}

.page-khuyen-mai__faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.page-khuyen-mai__faq-item {
  background-color: #ffffff;
  border: 1px solid #D6E2FF;
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.1em;
  font-weight: 600;
  color: #1F2D3D;
  cursor: pointer;
  background-color: #ffffff;
  position: relative;
  list-style: none;
}

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

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

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

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  color: #2F6BFF;
  margin-left: 15px;
}

.page-khuyen-mai__faq-answer {
  padding: 0 25px 20px;
  font-size: 0.95em;
  line-height: 1.6;
  color: #1F2D3D;
}

.page-khuyen-mai__cta-section {
  padding: 60px 0;
  background-color: #2F6BFF;
  color: #ffffff;
  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;
}

.page-khuyen-mai__cta-section .page-khuyen-mai__cta-buttons {
  justify-content: center;
  margin-top: 30px;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-title {
    font-size: 2.4em;
  }
  .page-khuyen-mai__hero-description {
    font-size: 1em;
  }
  .page-khuyen-mai__section-title {
    font-size: 2em;
  }
  .page-khuyen-mai__section-description {
    font-size: 1em;
  }
  .page-khuyen-mai__promo-card-image {
    height: 200px;
  }
}

@media (max-width: 768px) {
  /* HERO Section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px !important;
  }
  .page-khuyen-mai__hero-container {
    flex-direction: column;
    padding: 30px 15px;
    gap: 20px;
  }
  .page-khuyen-mai__hero-content,
  .page-khuyen-mai__hero-image {
    flex: 1 1 100%;
    min-width: unset;
  }
  .page-khuyen-mai__hero-title {
    font-size: 2em !important;
    text-align: center;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__hero-description {
    font-size: 0.95em !important;
    text-align: center;
    margin-bottom: 25px;
  }
  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 100%;
  }
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__hero-side-image {
    max-width: 400px;
  }

  /* Promotions List Section */
  .page-khuyen-mai__promotions-list-section,
  .page-khuyen-mai__how-to-participate-section,
  .page-khuyen-mai__terms-conditions-section,
  .page-khuyen-mai__why-choose-section,
  .page-khuyen-mai__faq-section,
  .page-khuyen-mai__cta-section {
    padding: 40px 0;
  }
  .page-khuyen-mai__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__section-title {
    font-size: 1.8em !important;
    margin-bottom: 15px;
  }
  .page-khuyen-mai__section-description {
    font-size: 0.9em !important;
    margin-bottom: 30px;
  }
  .page-khuyen-mai__promotions-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__promo-card-image {
    height: 180px !important;
  }
  .page-khuyen-mai__promo-card-title {
    font-size: 1.2em;
  }
  .page-khuyen-mai__btn-small {
    max-width: 100% !important;
    width: auto !important;
    padding: 8px 16px;
    font-size: 0.85em;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* How to Participate Section */
  .page-khuyen-mai__steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__step-image {
    max-width: 200px;
  }
  .page-khuyen-mai__step-title {
    font-size: 1.3em;
  }

  /* Why Choose Section */
  .page-khuyen-mai__benefits-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-khuyen-mai__benefit-image {
    max-width: 180px;
  }

  /* FAQ Section */
  .page-khuyen-mai__faq-list {
    max-width: 100%;
  }
  .page-khuyen-mai__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }
  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 0.9em;
  }

  /* General Image adaptation */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__promo-card-image,
  .page-khuyen-mai__step-image,
  .page-khuyen-mai__benefit-image {
    height: auto !important; /* Override fixed height for responsiveness */
  }

  /* Button containers */
  .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;
    flex-direction: column;
  }
}