.page-khuyen-mai {
  background-color: #0A0A0A; /* Background color from custom scheme */
  color: #FFF6D6; /* Main text color for contrast on dark background */
  font-family: Arial, sans-serif;
  line-height: 1.6;
  padding-bottom: 40px; /* Add some padding at the bottom */
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, relying on body padding-top from shared.css */
  padding-bottom: 40px;
  text-align: center;
  overflow: hidden;
}

.page-khuyen-mai__hero-image-wrapper {
  margin-bottom: 20px;
}

.page-khuyen-mai__hero-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2em, 3.5vw, 3.2em); /* Use clamp for H1 font-size */
  color: #FFD36B; /* Auxiliary color for highlight */
  margin-bottom: 15px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.5px;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: #FFF6D6;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05em;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%); /* Custom button gradient */
  color: #111111; /* Dark text for contrast on bright button */
  border: 2px solid transparent;
  box-shadow: 0 5px 15px rgba(255, 211, 107, 0.3);
}

.page-khuyen-mai__btn-primary:hover {
  background: linear-gradient(180deg, #DDA11D 0%, #FFD86A 100%);
  box-shadow: 0 8px 20px rgba(255, 211, 107, 0.5);
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background: #111111; /* Card BG color */
  color: #FFD36B; /* Auxiliary color */
  border: 2px solid #FFD36B;
  box-shadow: 0 5px 15px rgba(255, 211, 107, 0.1);
}

.page-khuyen-mai__btn-secondary:hover {
  background: #FFD36B;
  color: #111111;
  box-shadow: 0 8px 20px rgba(255, 211, 107, 0.3);
  transform: translateY(-2px);
}

.page-khuyen-mai__section {
  padding: 40px 0;
  border-top: 1px solid #3A2A12;
}

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

.page-khuyen-mai__section-title {
  font-size: clamp(1.8em, 3vw, 2.5em);
  color: #F2C14E; /* Main color */
  text-align: center;
  margin-bottom: 30px;
  font-weight: 700;
  line-height: 1.3;
}

.page-khuyen-mai__section-content p {
  margin-bottom: 1em;
  font-size: 1.05em;
  color: #FFF6D6;
}

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

.page-khuyen-mai__promo-card {
  background: #111111;
  border: 1px solid #3A2A12;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.7);
}

.page-khuyen-mai__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

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

.page-khuyen-mai__card-title {
  font-size: 1.4em;
  color: #FFD36B;
  margin-bottom: 15px;
  font-weight: 600;
  line-height: 1.3;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary {
  margin-top: auto;
  align-self: flex-start;
  padding: 10px 20px;
  font-size: 0.95em;
}

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

.page-khuyen-mai__step-card {
  background: #111111;
  border: 1px solid #3A2A12;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__step-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.7);
}

.page-khuyen-mai__step-number {
  font-size: 2.5em;
  font-weight: 700;
  color: #F2C14E;
  margin-bottom: 15px;
  background: rgba(242, 193, 78, 0.1);
  border-radius: 50%;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
  border: 2px solid #F2C14E;
}

.page-khuyen-mai__step-title {
  font-size: 1.3em;
  color: #FFD36B;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-khuyen-mai__step-card .page-khuyen-mai__btn-secondary {
  margin-top: 20px;
  padding: 10px 20px;
  font-size: 0.95em;
}

.page-khuyen-mai__image-figure {
  margin: 30px auto;
  max-width: 800px;
  text-align: center;
  background: #111111;
  border: 1px solid #3A2A12;
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__content-image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  margin-bottom: 10px;
}

.page-khuyen-mai__image-caption {
  font-size: 0.9em;
  color: #FFF6D6;
  padding: 5px 0;
}

.page-khuyen-mai__faq-list {
  margin-top: 30px;
}

.page-khuyen-mai__faq-question {
  background: #111111;
  border: 1px solid #3A2A12;
  border-radius: 8px;
  padding: 20px 25px;
  margin-bottom: 15px;
  cursor: pointer;
  font-size: 1.15em;
  color: #FFD36B;
  font-weight: 600;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.page-khuyen-mai__faq-question:hover {
  background-color: rgba(17, 17, 17, 0.8);
  border-color: #F2C14E;
}

.page-khuyen-mai__faq-answer {
  background: rgba(17, 17, 17, 0.5);
  border-left: 3px solid #F2C14E;
  padding: 15px 25px;
  margin-top: -10px;
  margin-bottom: 25px;
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
  font-size: 1em;
  color: #FFF6D6;
}

.page-khuyen-mai__btn-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
}

/* --- Mobile Responsive Styles --- */
@media (max-width: 1024px) {
  .page-khuyen-mai__article-wrap {
    padding: 0 15px;
  }
}

@media (max-width: 768px) {
  /* 1. Top section title + double CTA */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

  .page-khuyen-mai__hero-content {
    padding: 0 15px;
  }

  .page-khuyen-mai__main-title {
    font-size: 2em;
    margin-bottom: 10px;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
    font-size: 1em;
  }

  /* 2. Single-column long text container */
  .page-khuyen-mai__section {
    padding: 30px 0;
  }

  .page-khuyen-mai__article-wrap {
    padding: 0 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.6em;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__section-content p {
    font-size: 0.95em;
  }

  /* 3. General images and figure */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block;
  }

  .page-khuyen-mai__image-figure {
    padding: 10px;
    margin: 20px auto;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__content-image {
    border-radius: 4px;
  }

  .page-khuyen-mai__image-caption {
    font-size: 0.85em;
  }

  /* 4. Buttons and button containers (already covered in top section, but re-emphasize for general buttons) */
  .page-khuyen-mai__promo-card .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__step-card .page-khuyen-mai__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 10px 15px;
    font-size: 0.9em;
  }

  .page-khuyen-mai__promo-card-grid,
  .page-khuyen-mai__steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

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

  .page-khuyen-mai__card-image {
    height: 160px;
  }

  /* 5. Registration tutorial and FAQ blocks */
  .page-khuyen-mai__step-number {
    width: 60px;
    height: 60px;
    font-size: 2em;
    margin-bottom: 15px;
  }

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

  .page-khuyen-mai__faq-question {
    font-size: 1em;
    padding: 15px 20px;
    margin-bottom: 10px;
  }

  .page-khuyen-mai__faq-answer {
    padding: 10px 20px;
    margin-bottom: 20px;
    font-size: 0.95em;
  }

  .page-khuyen-mai__btn-center {
    width: 100%;
  }
}