.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF3E6; /* Text Main */
  background-color: #0D0E12; /* Background */
}

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

.page-khuyen-mai__dark-bg {
  background-color: #0D0E12;
  color: #FFF3E6;
}

.page-khuyen-mai__light-bg {
  background-color: #17191F; /* Card BG, slightly lighter for contrast */
  color: #FFF3E6;
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, relying on body padding for header offset */
  padding-bottom: 60px;
  background-color: #0D0E12;
  overflow: hidden;
}

.page-khuyen-mai__hero-section .page-khuyen-mai__container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  padding-top: 60px;
}

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

.page-khuyen-mai__hero-title {
  font-size: 3.2em;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #FF8C1A;
  max-width: 600px;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #FFF3E6;
  max-width: 600px;
}

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

.page-khuyen-mai__hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
  margin: 0 auto;
}

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

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1em;
  transition: all 0.3s ease;
  text-align: center;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #FFA53A 0%, #D96800 100%);
  color: #FFF3E6;
  border: 2px solid transparent;
  box-shadow: 0 4px 10px rgba(255, 140, 26, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
  background: linear-gradient(180deg, #D96800 0%, #FFA53A 100%);
  box-shadow: 0 6px 15px rgba(255, 140, 26, 0.6);
}

.page-khuyen-mai__btn-secondary {
  background-color: transparent;
  color: #FF8C1A;
  border: 2px solid #FF8C1A;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #FF8C1A;
  color: #0D0E12;
}

.page-khuyen-mai__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: #FF8C1A;
}

.page-khuyen-mai__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 50px;
  color: #FFF3E6;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__promo-list-section {
  padding: 80px 0;
}

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

.page-khuyen-mai__promo-card {
  background-color: #17191F; /* Card BG */
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  border: 1px solid #A84F0C;
}

.page-khuyen-mai__promo-card img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-khuyen-mai__card-title {
  font-size: 1.6em;
  font-weight: 600;
  margin-bottom: 15px;
  color: #FFA53A;
}

.page-khuyen-mai__card-description {
  font-size: 1em;
  color: #FFF3E6;
  margin-bottom: 25px;
  flex-grow: 1;
}

.page-khuyen-mai__guide-section {
  padding: 80px 0;
}

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

.page-khuyen-mai__guide-item {
  background-color: #17191F;
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid #A84F0C;
}

.page-khuyen-mai__guide-item img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__guide-title {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 10px;
  color: #FFA53A;
}

.page-khuyen-mai__guide-description {
  font-size: 0.95em;
  color: #FFF3E6;
}

.page-khuyen-mai__center-buttons {
  text-align: center;
  margin-top: 50px;
}

.page-khuyen-mai__terms-section {
  padding: 80px 0;
}

.page-khuyen-mai__terms-list {
  list-style-type: disc;
  margin: 30px auto;
  max-width: 900px;
  padding-left: 20px;
  color: #FFF3E6;
  font-size: 1em;
}

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

.page-khuyen-mai__content-text {
  text-align: center;
  color: #FFF3E6;
  font-size: 1em;
}

.page-khuyen-mai__content-text a {
  color: #FF8C1A;
  text-decoration: none;
  font-weight: bold;
}

.page-khuyen-mai__content-text a:hover {
  text-decoration: underline;
}

.page-khuyen-mai__faq-section {
  padding: 80px 0;
}

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

.page-khuyen-mai__faq-item {
  background-color: #17191F;
  border: 1px solid #A84F0C;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: #FFF3E6;
}

.page-khuyen-mai__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: 600;
  cursor: pointer;
  color: #FFA53A;
  list-style: none;
}

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

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

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

.page-khuyen-mai__faq-answer {
  padding: 0 25px 20px;
  font-size: 1em;
  color: #FFF3E6;
}

.page-khuyen-mai__faq-answer p {
  margin: 0;
}

.page-khuyen-mai__cta-section {
  padding: 80px 0;
  text-align: center;
}

.page-khuyen-mai__center-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }

  .page-khuyen-mai__hero-section .page-khuyen-mai__container {
    flex-direction: column;
    padding-top: 40px;
    gap: 30px;
  }

  .page-khuyen-mai__hero-content,
  .page-khuyen-mai__hero-image {
    flex: 1 1 100%;
    min-width: unset;
  }

  .page-khuyen-mai__hero-title {
    font-size: 2.2em;
    text-align: center;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1em;
    text-align: center;
  }

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    width: 100% !important;
    max-width: 300px !important; /* Constrain width for better look */
    padding: 12px 20px;
    font-size: 1em;
    margin: 0 auto;
  }

  .page-khuyen-mai__section-title {
    font-size: 2em;
    margin-bottom: 15px;
  }

  .page-khuyen-mai__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
    padding: 0 10px;
  }

  .page-khuyen-mai__promo-list-section,
  .page-khuyen-mai__guide-section,
  .page-khuyen-mai__terms-section,
  .page-khuyen-mai__faq-section,
  .page-khuyen-mai__cta-section {
    padding: 50px 0;
  }

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__guide-item {
    padding: 20px;
  }

  .page-khuyen-mai__card-title {
    font-size: 1.4em;
  }

  .page-khuyen-mai__card-description {
    font-size: 0.95em;
  }

  .page-khuyen-mai__guide-title {
    font-size: 1.2em;
  }

  .page-khuyen-mai__terms-list {
    padding-left: 25px;
    font-size: 0.95em;
  }

  .page-khuyen-mai__faq-item summary {
    font-size: 1.1em;
    padding: 15px 20px;
  }

  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 0.95em;
  }

  /* General image responsiveness for content area */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-khuyen-mai__container,
  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__guide-item,
  .page-khuyen-mai__faq-item,
  .page-khuyen-mai__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .page-khuyen-mai__hero-title {
    font-size: 1.8em;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.8em;
  }

  .page-khuyen-mai__hero-description,
  .page-khuyen-mai__section-description,
  .page-khuyen-mai__card-description,
  .page-khuyen-mai__guide-description,
  .page-khuyen-mai__terms-list,
  .page-khuyen-mai__faq-answer {
    font-size: 0.9em;
  }

  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    max-width: 280px !important;
  }
}