:root {
  --kv888-primary-color: #11A84E;
  --kv888-secondary-color: #22C768;
  --kv888-btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --kv888-card-bg: #11271B;
  --kv888-body-bg: #08160F;
  --kv888-text-main: #F2FFF6;
  --kv888-text-secondary: #A7D9B8;
  --kv888-border-color: #2E7A4E;
  --kv888-glow-color: #57E38D;
  --kv888-gold-color: #F2C14E;
  --kv888-divider-color: #1E3A2A;
  --kv888-deep-green: #0A4B2C;
}

.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--kv888-text-main); /* Ensure contrast with dark body background */
  background-color: var(--kv888-body-bg);
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

/* HERO Section */
.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 60px;
  background-color: var(--kv888-deep-green);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: left;
}

.page-khuyen-mai__hero-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  padding: 60px 15px;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 50%;
  min-width: 300px;
  padding-right: 20px;
}

.page-khuyen-mai__hero-title {
  font-size: 3.2em;
  font-weight: bold;
  margin-bottom: 20px;
  line-height: 1.2;
  color: var(--kv888-text-main);
  max-width: 600px;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: var(--kv888-text-secondary);
  max-width: 650px;
}

.page-khuyen-mai__hero-cta-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.page-khuyen-mai__hero-image-wrapper {
  flex: 1 1 40%;
  min-width: 300px;
  text-align: center;
}

.page-khuyen-mai__hero-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  display: block; /* Ensure it behaves as a block element for max-width */
}

/* General Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  text-align: center;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Break long words */
}

.page-khuyen-mai__btn-primary {
  background: var(--kv888-btn-gradient);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__btn-secondary {
  background: transparent;
  color: var(--kv888-primary-color);
  border: 2px solid var(--kv888-primary-color);
  box-shadow: none;
}

.page-khuyen-mai__btn-secondary:hover {
  background: var(--kv888-primary-color);
  color: #ffffff;
  transform: translateY(-2px);
}

/* Section Titles and Descriptions */
.page-khuyen-mai__section-title {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  color: var(--kv888-text-main);
}

.page-khuyen-mai__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  color: var(--kv888-text-secondary);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Promo Section */
.page-khuyen-mai__promo-section {
  padding: 80px 0;
  background-color: var(--kv888-body-bg);
}

.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: var(--kv888-card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--kv888-border-color);
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__promo-card-image {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card-content {
  padding: 25px;
}

.page-khuyen-mai__promo-card-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--kv888-gold-color);
}

.page-khuyen-mai__promo-card-text {
  font-size: 1em;
  margin-bottom: 20px;
  color: var(--kv888-text-secondary);
}

/* Why Promo Section */
.page-khuyen-mai__why-promo-section {
  padding: 60px 0;
  background-color: var(--kv888-deep-green);
}

.page-khuyen-mai__benefit-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.page-khuyen-mai__benefit-item {
  background-color: var(--kv888-card-bg);
  color: var(--kv888-text-main);
  padding: 15px 25px;
  border-radius: 8px;
  font-size: 1.1em;
  flex: 1 1 calc(33% - 40px); /* 3 items per row on desktop */
  max-width: calc(33% - 40px);
  text-align: center;
  border: 1px solid var(--kv888-border-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: 80px 0;
  background-color: var(--kv888-body-bg);
}

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

.page-khuyen-mai__faq-item {
  background-color: var(--kv888-card-bg);
  border: 1px solid var(--kv888-border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  cursor: pointer;
  color: var(--kv888-text-main);
  background-color: var(--kv888-card-bg);
  list-style: none; /* Remove default marker for details/summary */
}

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

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--kv888-primary-color);
  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 25px 20px;
  font-size: 1em;
  line-height: 1.6;
  color: var(--kv888-text-secondary);
}

/* Call to Action Section */
.page-khuyen-mai__call-to-action-section {
  padding: 80px 0;
  background-color: var(--kv888-primary-color);
  text-align: center;
}

.page-khuyen-mai__call-to-action-section .page-khuyen-mai__section-title {
  color: #ffffff;
}

.page-khuyen-mai__call-to-action-section .page-khuyen-mai__section-description {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 50px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-title {
    font-size: 2.8em;
  }

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

  .page-khuyen-mai__section-title {
    font-size: 2em;
  }

  .page-khuyen-mai__promo-card-title {
    font-size: 1.3em;
  }

  .page-khuyen-mai__benefit-item {
    flex: 1 1 calc(50% - 30px); /* 2 items per row */
    max-width: calc(50% - 30px);
  }
}

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

  .page-khuyen-mai__hero-container {
    flex-direction: column;
    text-align: center;
    padding: 40px 15px;
    gap: 30px;
  }

  .page-khuyen-mai__hero-content {
    padding-right: 0;
    order: 2; /* Content below image */
  }

  .page-khuyen-mai__hero-title {
    font-size: 2.2em;
    margin-bottom: 15px;
    max-width: 100%;
  }

  .page-khuyen-mai__hero-description {
    font-size: 0.95em;
    margin-bottom: 25px;
    max-width: 100%;
  }

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column; /* Buttons stack vertically */
    gap: 15px;
    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;
    font-size: 1em;
    padding: 12px 20px;
  }

  .page-khuyen-mai__hero-image-wrapper {
    order: 1; /* Image above content */
    width: 100%;
  }

  /* General Images */
  .page-khuyen-mai img {
    max-width: 100% !important;
    height: auto !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Section Styling */
  .page-khuyen-mai__promo-section,
  .page-khuyen-mai__why-promo-section,
  .page-khuyen-mai__faq-section,
  .page-khuyen-mai__call-to-action-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__container {
    padding: 0 20px;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }

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

  /* Promo Grid */
  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr; /* Single column */
    gap: 20px;
  }

  .page-khuyen-mai__promo-card-image {
    height: 180px; /* Adjust height for mobile */
  }

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

  .page-khuyen-mai__promo-card-text {
    font-size: 0.9em;
  }

  /* Why Promo Section */
  .page-khuyen-mai__benefit-item {
    flex: 1 1 100%; /* Single item per row */
    max-width: 100%;
    font-size: 1em;
    padding: 12px 15px;
  }

  /* FAQ Section */
  .page-khuyen-mai__faq-question {
    font-size: 1.1em;
    padding: 15px 20px;
  }

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