.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light background */
  background-color: #ffffff; /* Assuming body background is white */
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, relying on body padding-top for header offset */
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 40px;
  background: linear-gradient(180deg, #FFFFFF 0%, #E6F7FF 100%); /* Light gradient background */
}

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

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

.page-khuyen-mai__hero-content {
  max-width: 800px;
  padding: 0 20px;
}

.page-khuyen-mai__main-title {
  font-size: 2.5em;
  font-weight: bold;
  color: #26A9E0;
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  color: #555555;
  margin-bottom: 30px;
}

.page-khuyen-mai__hero-cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap; /* Ensure wrap on mobile */
  width: 100%; /* Ensure container takes full width for wrapping */
  max-width: 400px; /* Limit button group width */
  margin: 0 auto;
}

.page-khuyen-mai__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  cursor: pointer;
  max-width: 100%; /* Important for button responsiveness */
  box-sizing: border-box; /* Important for button responsiveness */
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text breaking */
  text-align: center;
}

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

.page-khuyen-mai__btn-primary:hover {
  background-color: #1a8ccb;
  border-color: #1a8ccb;
}

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

.page-khuyen-mai__btn-secondary:hover {
  background-color: #e0f2ff;
  color: #26A9E0;
}

.page-khuyen-mai__section {
  padding: 60px 0;
}

.page-khuyen-mai__overview-section {
  background-color: #f8f8f8;
}

.page-khuyen-mai__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai__section-title {
  font-size: 2em;
  font-weight: bold;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 30px;
}

.page-khuyen-mai__text-block {
  font-size: 1em;
  color: #333333;
  margin-bottom: 20px;
  text-align: justify;
}

.page-khuyen-mai__cta-wrapper {
  text-align: center;
  margin-top: 30px;
}

.page-khuyen-mai__promo-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__promo-card {
  background-color: #FFFFFF;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-figure {
  margin: 0;
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  overflow: hidden;
}

.page-khuyen-mai__promo-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

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

.page-khuyen-mai__promo-title {
  font-size: 1.4em;
  font-weight: bold;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-khuyen-mai__promo-description {
  font-size: 0.95em;
  color: #555555;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__dark-bg {
  background-color: #26A9E0;
  color: #FFFFFF;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__section-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__text-block,
.page-khuyen-mai__dark-bg .page-khuyen-mai__terms-item,
.page-khuyen-mai__dark-bg .page-khuyen-mai__faq-qtext {
  color: #FFFFFF; /* Ensure white text on dark background */
}

.page-khuyen-mai__terms-list,
.page-khuyen-mai__steps-list,
.page-khuyen-mai__benefits-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 20px;
}

.page-khuyen-mai__terms-item,
.page-khuyen-mai__steps-item,
.page-khuyen-mai__benefits-item {
  position: relative;
  padding-left: 30px;
  margin-bottom: 15px;
  font-size: 1em;
}

.page-khuyen-mai__terms-item::before,
.page-khuyen-mai__steps-item::before,
.page-khuyen-mai__benefits-item::before {
  content: '✔️'; /* Checkmark icon */
  position: absolute;
  left: 0;
  color: #26A9E0;
  font-weight: bold;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__terms-item::before {
  color: #FFFFFF; /* White checkmark on dark background */
}

.page-khuyen-mai__faq-list {
  margin-top: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__faq-item {
  background-color: #FFFFFF;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  font-weight: bold;
  color: #26A9E0;
  cursor: pointer;
  list-style: none; /* For details/summary */
}

.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none; /* Hide default marker */
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  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: 0 20px 15px;
  color: #555555;
  font-size: 0.95em;
}

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

/* --- Mobile Responsive Styles --- */
@media (max-width: 1024px) {
  .page-khuyen-mai__main-title {
    font-size: 2em;
  }
  .page-khuyen-mai__section-title {
    font-size: 1.8em;
  }
  .page-khuyen-mai__promo-card-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  /* 1. Top section title + CTA */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Ensure small top padding */
    padding-bottom: 30px;
  }
  .page-khuyen-mai__main-title {
    font-size: clamp(1.8em, 5vw, 2.2em);
    padding: 0 15px;
  }
  .page-khuyen-mai__hero-description {
    font-size: 1em;
    padding: 0 15px;
  }
  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__btn {
    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;
  }

  /* 2. Single column long text container */
  .page-khuyen-mai__container {
    padding: 0 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__section {
    padding: 40px 0;
  }
  .page-khuyen-mai__section-title {
    font-size: 1.5em;
    margin-bottom: 20px;
    padding: 0 10px;
  }
  .page-khuyen-mai__text-block {
    font-size: 0.95em;
    padding: 0 5px;
  }

  /* 3. General images and figure */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-khuyen-mai__hero-image-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
  }
  .page-khuyen-mai__promo-figure {
    height: 180px;
  }

  /* 4. Buttons and button containers */
  .page-khuyen-mai__cta-buttons,
  .page-khuyen-mai__cta-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
  }
  .page-khuyen-mai__promo-card .page-khuyen-mai__btn {
    width: 100%;
  }
  .page-khuyen-mai__promo-card-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 5. FAQ and lists */
  .page-khuyen-mai__faq-item {
    margin-bottom: 10px;
  }
  .page-khuyen-mai__faq-question {
    padding: 12px 15px;
    font-size: 1em;
  }
  .page-khuyen-mai__faq-answer {
    padding: 0 15px 12px;
    font-size: 0.9em;
  }
  .page-khuyen-mai__terms-item,
  .page-khuyen-mai__steps-item,
  .page-khuyen-mai__benefits-item {
    font-size: 0.95em;
    padding-left: 25px;
  }
}