.page-khuyen-mai {
  --primary-color: #017439;
  --secondary-color: #FFFFFF;
  --text-dark: #333333;
  --text-light: #ffffff;
  --btn-register: #C30808;
  --btn-login: #C30808;
  --font-register-login: #FFFF00;
  color: var(--text-dark); /* Default text color for light backgrounds */
  background-color: var(--secondary-color); /* Assuming shared.css body background is light */
}

.page-khuyen-mai__dark-bg {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.page-khuyen-mai__light-bg {
  background-color: var(--secondary-color);
  color: var(--text-dark);
}

.page-khuyen-mai__container {
  max-width: 1170px;
  margin: 0 auto;
  padding: 40px 16px;
  box-sizing: border-box;
}

.page-khuyen-mai__section-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-khuyen-mai__section-description {
  font-size: clamp(1rem, 2vw, 1.15rem);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

/* HERO Section */
.page-khuyen-mai__hero-section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  padding-bottom: 60px;
  text-align: center;
}

.page-khuyen-mai__hero-image {
  flex: 1 1 500px;
  max-width: 600px;
  order: 1; /* Image on top for mobile */
}

.page-khuyen-mai__hero-side-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 500px;
  max-width: 600px;
  text-align: left;
  order: 2; /* Content below image for mobile */
}

.page-khuyen-mai__hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
  color: var(--text-light);
}

.page-khuyen-mai__hero-description {
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  margin-bottom: 30px;
  line-height: 1.6;
  color: var(--text-light);
}

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

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary,
.page-khuyen-mai__cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  white-space: nowrap;
  box-sizing: border-box;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__cta-button {
  background-color: var(--btn-register);
  color: var(--font-register-login);
  border: 2px solid var(--btn-register);
}

.page-khuyen-mai__btn-primary:hover,
.page-khuyen-mai__cta-button:hover {
  background-color: #a70707;
  border-color: #a70707;
}

.page-khuyen-mai__btn-secondary {
  background-color: transparent;
  color: var(--text-light);
  border: 2px solid var(--text-light);
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: var(--text-light);
  color: var(--primary-color);
}

/* Intro Section */
.page-khuyen-mai__intro-section {
  padding: 60px 0;
}

.page-khuyen-mai__icon-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-khuyen-mai__icon-box {
  padding: 20px;
  border-radius: 12px;
  background-color: var(--secondary-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.page-khuyen-mai__icon-box:hover {
  transform: translateY(-5px);
}

.page-khuyen-mai__icon-box-media {
  width: 240px;
  height: 240px;
  aspect-ratio: 1 / 1;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--primary-color);
}

.page-khuyen-mai__icon-box-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%; /* Ensure circular shape */
  display: block;
}

.page-khuyen-mai__icon-box-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.page-khuyen-mai__icon-box-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dark);
}

/* Promo List Section */
.page-khuyen-mai__promo-list-section {
  padding: 60px 0;
}

.page-khuyen-mai__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.page-khuyen-mai__promo-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
}

.page-khuyen-mai__promo-image {
  width: 100%;
  height: 220px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

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

.page-khuyen-mai__promo-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.page-khuyen-mai__promo-title a {
  color: var(--text-light);
  text-decoration: none;
}

.page-khuyen-mai__promo-title a:hover {
  text-decoration: underline;
}

.page-khuyen-mai__promo-text {
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Guide Section */
.page-khuyen-mai__guide-section {
  padding: 60px 0;
}

.page-khuyen-mai__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-khuyen-mai__guide-step {
  text-align: center;
  padding: 20px;
  background-color: var(--secondary-color);
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai__step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: var(--text-light);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.page-khuyen-mai__step-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.page-khuyen-mai__step-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dark);
}

.page-khuyen-mai__guide-image {
  text-align: center;
  margin-top: 40px;
}

.page-khuyen-mai__guide-img {
  max-width: 800px;
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  display: block;
  margin: 0 auto;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: 60px 0;
}

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

.page-khuyen-mai__faq-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-khuyen-mai__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.8rem;
  font-weight: 500;
  line-height: 1;
  margin-left: 15px;
  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: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

/* CTA Section */
.page-khuyen-mai__cta-section {
  padding: 80px 0;
  text-align: center;
}

.page-khuyen-mai__cta-button {
  margin-top: 30px;
  padding: 16px 32px;
  font-size: 1.25rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-section {
    gap: 30px;
    padding-bottom: 50px;
  }

  .page-khuyen-mai__hero-content {
    text-align: center;
  }

  .page-khuyen-mai__hero-cta-buttons {
    justify-content: center;
  }

  .page-khuyen-mai__icon-box-media {
    width: 200px;
    height: 200px;
  }

  .page-khuyen-mai__promo-image {
    height: 200px;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__container {
    padding: 30px 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

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

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

  /* HERO Section (Mobile) */
  .page-khuyen-mai__hero-section {
    flex-direction: column;
    padding-top: 10px !important; /* Ensure small top padding */
    padding-bottom: 40px;
    gap: 20px;
  }

  .page-khuyen-mai__hero-image {
    order: 1;
    flex: none;
    max-width: 100%;
  }

  .page-khuyen-mai__hero-content {
    order: 2;
    flex: none;
    max-width: 100%;
    text-align: center;
  }

  .page-khuyen-mai__hero-title {
    font-size: 2rem;
    margin-bottom: 15px;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1rem;
    margin-bottom: 25px;
  }

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
  }

  /* Buttons (Mobile) */
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary,
  .page-khuyen-mai__cta-button {
    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: 1rem;
  }

  /* Intro Section (Mobile) */
  .page-khuyen-mai__intro-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__icon-boxes {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__icon-box-media {
    width: 180px;
    height: 180px;
    margin-bottom: 15px;
  }

  .page-khuyen-mai__icon-box-title {
    font-size: 1.2rem;
  }

  /* Promo List Section (Mobile) */
  .page-khuyen-mai__promo-list-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__promo-image {
    height: 180px;
  }

  .page-khuyen-mai__promo-content {
    padding: 20px;
  }

  .page-khuyen-mai__promo-title {
    font-size: 1.15rem;
  }

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

  /* Guide Section (Mobile) */
  .page-khuyen-mai__guide-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 30px;
  }

  .page-khuyen-mai__step-icon {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }

  .page-khuyen-mai__step-title {
    font-size: 1.1rem;
  }

  .page-khuyen-mai__step-text {
    font-size: 0.9rem;
  }

  .page-khuyen-mai__guide-img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  /* FAQ Section (Mobile) */
  .page-khuyen-mai__faq-section {
    padding: 40px 0;
  }

  .page-khuyen-mai__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-khuyen-mai__faq-toggle {
    font-size: 1.5rem;
  }

  .page-khuyen-mai__faq-answer {
    font-size: 0.9rem;
    padding: 0 20px 15px;
  }

  /* CTA Section (Mobile) */
  .page-khuyen-mai__cta-section {
    padding: 50px 0;
  }

  .page-khuyen-mai__cta-button {
    font-size: 1.1rem;
    padding: 14px 25px;
  }

  /* General Images (Mobile) */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
}

/* Ensure images in cards and content areas are not too small by CSS */
.page-khuyen-mai__promo-card img, 
.page-khuyen-mai__guide-img {
  min-width: 200px;
  min-height: 200px; /* Ensure content images meet minimum size */
}