.page-khuyn-mi {
  font-family: 'Arial', sans-serif;
  color: #333;
  line-height: 1.6;
}

.page-khuyn-mi__hero {
  background: linear-gradient(135deg, #007bff, #0056b3);
  color: #fff;
  padding: 80px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 40px;
  position: relative;
  overflow: hidden;
}

.page-khuyn-mi__hero-content {
  max-width: 900px;
  z-index: 1;
}

.page-khuyn-mi__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  font-weight: bold;
  color: #ffc107; /* Highlight with auxiliary color */
  line-height: 1.2;
}

.page-khuyn-mi__hero-description {
  font-size: 1.2em;
  margin-bottom: 30px;
  opacity: 0.9;
}

.page-khuyn-mi__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.page-khuyn-mi__btn--primary {
  background-color: #ffc107;
  color: #000;
}

.page-khuyn-mi__btn--primary:hover {
  background-color: #e0a800;
  transform: translateY(-2px);
}

.page-khuyn-mi__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
  z-index: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-khuyn-mi__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.page-khuyn-mi__section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-khuyn-mi__section-title {
  font-size: 2.5em;
  color: #007bff;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.page-khuyn-mi__section-title::after {
  content: '';
  width: 80px;
  height: 4px;
  background-color: #ffc107;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -15px;
  border-radius: 2px;
}

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

.page-khuyn-mi__feature-item {
  background-color: #f8f9fa;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.page-khuyn-mi__feature-item:hover {
  transform: translateY(-5px);
}

.page-khuyn-mi__feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  filter: none; /* Ensure no CSS filter changes original image color */
}

.page-khuyn-mi__feature-title {
  font-size: 1.6em;
  color: #007bff;
  margin-bottom: 15px;
}

.page-khuyn-mi__feature-text {
  font-size: 1em;
  color: #555;
}

.page-khuyn-mi__promo-types {
  background-color: #e9f7ff; /* Light blue background */
}

.page-khuyn-mi__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.page-khuyn-mi__promo-card {
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyn-mi__promo-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.page-khuyn-mi__promo-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  filter: none; /* Ensure no CSS filter changes original image color */
}

.page-khuyn-mi__promo-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-khuyn-mi__promo-title {
  font-size: 1.8em;
  color: #007bff;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-khuyn-mi__promo-description {
  font-size: 0.95em;
  color: #666;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyn-mi__promo-details {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

.page-khuyn-mi__promo-details li {
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="%23ffc107"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"/></svg>') no-repeat left center;
  background-size: 18px;
  padding-left: 28px;
  margin-bottom: 10px;
  color: #444;
}

.page-khuyn-mi__promo-card .page-khuyn-mi__btn {
  background-color: #007bff;
  color: #fff;
  text-align: center;
  padding: 12px 20px;
  font-size: 1em;
  border-radius: 6px;
  margin-top: auto; /* Push button to bottom */
}

.page-khuyn-mi__promo-card .page-khuyn-mi__btn:hover {
  background-color: #0056b3;
}

.page-khuyn-mi__how-to-claim .page-khuyn-mi__steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-khuyn-mi__step-item {
  background-color: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-khuyn-mi__step-number {
  width: 60px;
  height: 60px;
  background-color: #ffc107;
  color: #333;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2em;
  font-weight: bold;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(255, 193, 7, 0.4);
}

.page-khuyn-mi__step-title {
  font-size: 1.5em;
  color: #007bff;
  margin-bottom: 15px;
}

.page-khuyn-mi__step-item p {
  color: #555;
  font-size: 0.95em;
  margin-bottom: 20px;
}

.page-khuyn-mi__btn--small {
  padding: 10px 20px;
  font-size: 0.9em;
  background-color: #007bff;
  color: #fff;
}

.page-khuyn-mi__btn--small:hover {
  background-color: #0056b3;
}

.page-khuyn-mi__tips {
  background-color: #f1f8ff; /* Another light blue variant */
}

.page-khuyn-mi__tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.page-khuyn-mi__tip-item {
  background-color: #fff;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-khuyn-mi__tip-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 15px;
  filter: none; /* Ensure no CSS filter changes original image color */
}

.page-khuyn-mi__tip-title {
  font-size: 1.4em;
  color: #007bff;
  margin-bottom: 10px;
}

.page-khuyn-mi__tip-item p {
  font-size: 0.9em;
  color: #666;
}

.page-khuyn-mi__commitment {
  background-color: #007bff;
  color: #fff;
  text-align: center;
  padding: 80px 20px;
}

.page-khuyn-mi__commitment .page-khuyn-mi__section-title {
  color: #ffc107;
}

.page-khuyn-mi__commitment .page-khuyn-mi__section-title::after {
  background-color: #fff;
}

.page-khuyn-mi__text-center {
  max-width: 900px;
  margin: 0 auto 30px auto;
  font-size: 1.1em;
  line-height: 1.8;
  color: #e0f2ff;
}

.page-khuyn-mi__btn-group {
  margin-top: 40px;
}

.page-khuyn-mi__faq {
  background-color: #fdfdfd;
}

.page-khuyn-mi__faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}

.page-khuyn-mi__faq-item {
  border: 1px solid #ddd;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-khuyn-mi__faq-question {
  background-color: #fff;
  color: #007bff;
  padding: 18px 25px;
  width: 100%;
  text-align: left;
  border: none;
  outline: none;
  font-size: 1.1em;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-khuyn-mi__faq-question::after {
  content: '+';
  font-size: 1.5em;
  color: #ffc107;
  transition: transform 0.3s ease;
}

.page-khuyn-mi__faq-question.active::after {
  content: '-';
  transform: rotate(180deg);
}

.page-khuyn-mi__faq-question:hover {
  background-color: #f0f0f0;
}

.page-khuyn-mi__faq-answer {
  padding: 0 25px;
  background-color: #f9f9f9;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.page-khuyn-mi__faq-answer p {
  padding: 15px 0;
  color: #555;
  font-size: 0.95em;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-khuyn-mi__hero {
    padding: 60px 20px;
  }

  .page-khuyn-mi__hero-title {
    font-size: 2.8em;
  }

  .page-khuyn-mi__section-title {
    font-size: 2em;
  }

  .page-khuyn-mi__promo-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-khuyn-mi__hero {
    padding: 40px 15px;
  }

  .page-khuyn-mi__hero-title {
    font-size: 2.2em;
  }

  .page-khuyn-mi__hero-description {
    font-size: 1em;
  }

  .page-khuyn-mi__section {
    padding: 40px 15px;
  }

  .page-khuyn-mi__section-title {
    font-size: 1.8em;
    margin-bottom: 40px;
  }

  .page-khuyn-mi__feature-item, .page-khuyn-mi__promo-card, .page-khuyn-mi__step-item, .page-khuyn-mi__tip-item {
    padding: 20px;
  }

  .page-khuyn-mi__feature-title, .page-khuyn-mi__promo-title, .page-khuyn-mi__step-title, .page-khuyn-mi__tip-title {
    font-size: 1.4em;
  }

  .page-khuyn-mi__btn {
    padding: 12px 25px;
    font-size: 1em;
  }

  .page-khuyn-mi__faq-question {
    font-size: 1em;
    padding: 15px 20px;
  }

  .page-khuyn-mi__faq-answer p {
    padding: 10px 0;
    font-size: 0.9em;
  }
}

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

  .page-khuyn-mi__section-title {
    font-size: 1.5em;
  }

  .page-khuyn-mi__promo-grid, .page-khuyn-mi__features-grid, .page-khuyn-mi__steps, .page-khuyn-mi__tips-grid {
    grid-template-columns: 1fr;
  }

  .page-khuyn-mi__step-number {
    width: 50px;
    height: 50px;
    font-size: 1.8em;
  }

  .page-khuyn-mi__btn {
    width: 100%;
    box-sizing: border-box;
  }
}