.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF6D6; /* Text Main color */
  background: #0A0A0A; /* Background color */
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, not var(--header-offset) */
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 500px;
  text-align: center;
}

.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  max-height: 700px;
  overflow: hidden;
  position: relative;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.6); /* Slightly darken image for text readability */
}

.page-khuyen-mai__hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  max-width: 900px;
  padding: 20px;
  box-sizing: border-box;
  text-align: center;
}

.page-khuyen-mai__hero-title {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 700;
  color: #FFD36B; /* Glow color */
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(255, 211, 107, 0.7);
}

.page-khuyen-mai__hero-description {
  font-size: 1.2rem;
  color: #FFF6D6; /* Text Main color */
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__btn-card {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%); /* Button color */
  color: #111111; /* Dark text for contrast on bright button */
  border: none;
  box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(242, 193, 78, 0.6);
}

.page-khuyen-mai__btn-secondary {
  background: transparent;
  color: #FFD36B; /* Glow color */
  border: 2px solid #FFD36B; /* Glow color */
}

.page-khuyen-mai__btn-secondary:hover {
  background: #FFD36B;
  color: #111111; /* Dark text for contrast on bright button */
}

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

.page-khuyen-mai__section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: #FFD36B; /* Glow color */
  margin-bottom: 40px;
  text-shadow: 0 0 8px rgba(255, 211, 107, 0.5);
}

.page-khuyen-mai__section-title--light {
  color: #FFF6D6; /* Text Main color */
  text-shadow: none;
}

.page-khuyen-mai__article-body {
  max-width: 900px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: #FFF6D6; /* Text Main color */
  text-align: left;
}

.page-khuyen-mai__article-body p {
  margin-bottom: 1em;
}

.page-khuyen-mai__article-body--light p {
  color: #FFF6D6; /* Text Main color */
}

.page-khuyen-mai__article-body a {
  color: #FFD36B;
  text-decoration: underline;
}

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

.page-khuyen-mai__card {
  background: #111111; /* Card B G color */
  border: 1px solid #3A2A12; /* Border color */
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #FFF6D6;
}

.page-khuyen-mai__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.page-khuyen-mai__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid #3A2A12;
}

.page-khuyen-mai__card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-khuyen-mai__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #FFD36B; /* Glow color */
  margin-bottom: 15px;
}

.page-khuyen-mai__card-description {
  font-size: 1rem;
  color: #FFF6D6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__btn-card {
  width: 100%;
  padding: 12px 20px;
  font-size: 1rem;
  margin-top: auto;
}

.page-khuyen-mai__dark-bg {
  background: #F2C14E; /* Main color as background */
  color: #111111; /* Dark text for contrast */
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__vip-benefits {
  list-style: none;
  padding: 0;
  margin-top: 30px;
  font-size: 1.1rem;
  color: #FFF6D6;
  text-align: center;
}

.page-khuyen-mai__vip-benefits li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 25px;
}

.page-khuyen-mai__vip-benefits li::before {
  content: '★';
  color: #FFD36B; /* Glow color */
  position: absolute;
  left: 0;
}

.page-khuyen-mai__guide-list {
  list-style: none;
  padding: 0;
  counter-reset: guide-counter;
  margin-top: 30px;
}

.page-khuyen-mai__guide-list li {
  counter-increment: guide-counter;
  margin-bottom: 20px;
  padding-left: 50px;
  position: relative;
  font-size: 1.1rem;
  color: #FFF6D6;
  text-align: left;
}

.page-khuyen-mai__guide-list li::before {
  content: counter(guide-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 35px;
  height: 35px;
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #111111;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.2rem;
}

.page-khuyen-mai__guide-list li strong {
  color: #FFD36B;
}

details.page-khuyen-mai__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  border: 1px solid #3A2A12; /* Border color */
  overflow: hidden;
  background: #111111; /* Card B G color */
  color: #FFF6D6;
}

details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

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

details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question:hover {
  background: rgba(255, 211, 107, 0.1);
}

.page-khuyen-mai__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #FFD36B; /* Glow color */
}

.page-khuyen-mai__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: #FFD36B; /* Glow color */
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}

details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer {
  padding: 0 25px 20px;
  background: rgba(17, 17, 17, 0.8); /* Slightly transparent Card B G */
  border-radius: 0 0 10px 10px;
  color: #FFF6D6;
}

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

.page-khuyen-mai__conclusion-cta {
  margin-top: 40px;
}

/* General image responsiveness */
.page-khuyen-mai img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Mobile responsiveness */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-title {
    font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  }
  .page-khuyen-mai__hero-description {
    font-size: 1.1rem;
  }
  .page-khuyen-mai__btn-primary, .page-khuyen-mai__btn-secondary {
    padding: 12px 25px;
    font-size: 1rem;
  }
  .page-khuyen-mai__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  }
  .page-khuyen-mai__article-body {
    font-size: 1rem;
  }
  .page-khuyen-mai__card-title {
    font-size: 1.3rem;
  }
  .page-khuyen-mai__card-description {
    font-size: 0.95rem;
  }
  .page-khuyen-mai__faq-qtext {
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__hero-section {
    padding-top: 10px;
    min-height: 400px;
  }
  .page-khuyen-mai__hero-image-wrapper {
    max-height: 400px;
  }
  .page-khuyen-mai__hero-image {
    object-fit: contain !important; /* Force contain for mobile hero */
    aspect-ratio: unset !important;
    filter: brightness(0.7); /* Slightly less dark for mobile */
  }
  .page-khuyen-mai__hero-content {
    padding: 15px;
    top: 55%; /* Adjust vertical position */
  }
  .page-khuyen-mai__hero-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
    margin-bottom: 15px;
  }
  .page-khuyen-mai__hero-description {
    font-size: 0.95rem;
    margin-bottom: 20px;
  }
  .page-khuyen-mai__hero-buttons {
    flex-direction: column; /* Stack buttons vertically */
    gap: 15px;
    width: 100%;
    max-width: 300px; /* Limit button group width */
    margin: 0 auto;
  }
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary,
  .page-khuyen-mai__btn-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 15px;
  }
  
  .page-khuyen-mai__section {
    padding: 40px 0;
  }
  .page-khuyen-mai__container {
    padding-left: 15px;
    padding-right: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-khuyen-mai__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    margin-bottom: 30px;
  }
  .page-khuyen-mai__article-body {
    font-size: 0.95rem;
    text-align: justify;
  }
  .page-khuyen-mai__grid {
    grid-template-columns: 1fr; /* Single column for cards */
    gap: 20px;
  }
  .page-khuyen-mai__card-image {
    height: 180px;
  }
  .page-khuyen-mai__card-content {
    padding: 20px;
  }
  .page-khuyen-mai__card-title {
    font-size: 1.2rem;
  }
  .page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question {
    padding: 15px 20px;
  }
  .page-khuyen-mai__faq-qtext {
    font-size: 0.95rem;
  }
  .page-khuyen-mai__faq-toggle {
    font-size: 24px;
    width: 25px;
  }
  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
  }
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-khuyen-mai__section, .page-khuyen-mai__card, .page-khuyen-mai__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__hero-buttons, .page-khuyen-mai__conclusion-cta {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }
  .page-khuyen-mai__hero-buttons {
    flex-direction: column;
  }
  .page-khuyen-mai__vip-benefits li, .page-khuyen-mai__guide-list li {
    padding-left: 40px;
    font-size: 1rem;
  }
  .page-khuyen-mai__vip-benefits li::before, .page-khuyen-mai__guide-list li::before {
    width: 30px;
    height: 30px;
    font-size: 1.1rem;
  }
}