/* style/khuyen-mai.css */
:root {
  --page-primary-color: #017439;
  --page-auxiliary-color: #FFFFFF;
  --page-register-color: #C30808;
  --page-login-color: #C30808;
  --page-background-color: #FFFFFF;
  --page-register-login-font-color: #FFFF00;
  --page-text-color: #333333;
}

.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--page-text-color);
  background-color: var(--page-background-color);
}

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

.page-khuyen-mai__section-title {
  font-size: 2.5em;
  font-weight: bold;
  color: var(--page-primary-color);
  text-align: center;
  margin-bottom: 20px;
}

.page-khuyen-mai__section-title--light {
  color: var(--page-auxiliary-color);
}

.page-khuyen-mai__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__section-description--light {
  color: rgba(255, 255, 255, 0.9);
}

/* HERO Section */
.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  padding-bottom: 60px;
  background-color: var(--page-background-color);
}

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

.page-khuyen-mai__hero-content {
  flex: 1 1 45%;
  min-width: 300px;
  color: var(--page-text-color);
}

.page-khuyen-mai__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--page-primary-color);
}

.page-khuyen-mai__hero-description {
  font-size: 1.2em;
  line-height: 1.5;
  margin-bottom: 30px;
  color: #555555;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, color 0.3s ease;
  box-sizing: border-box;
  text-align: center;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background-color: var(--page-register-color); /* Custom color #C30808 */
  color: var(--page-register-login-font-color); /* Custom color #FFFF00 */
  border: 2px solid var(--page-register-color);
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #a30606;
  border-color: #a30606;
}

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

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

.page-khuyen-mai__hero-image {
  flex: 1 1 45%;
  min-width: 300px;
  text-align: center;
}

.page-khuyen-mai__hero-side-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Intro Section */
.page-khuyen-mai__intro-section {
  padding: 60px 0;
  background-color: var(--page-background-color); /* Light background */
}

/* Categories Section */
.page-khuyen-mai__categories-section {
  padding: 60px 0;
  background-color: var(--page-primary-color); /* Dark background */
  color: var(--page-auxiliary-color);
}

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

.page-khuyen-mai__promo-card {
  background-color: var(--page-auxiliary-color);
  color: var(--page-text-color);
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  text-align: center;
  padding-bottom: 25px;
}

.page-khuyen-mai__promo-card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
  margin-bottom: 20px;
}

.page-khuyen-mai__promo-card-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 10px;
  color: var(--page-primary-color);
  padding: 0 15px;
}

.page-khuyen-mai__promo-card-text {
  font-size: 1em;
  margin-bottom: 20px;
  padding: 0 15px;
}

.page-khuyen-mai__btn-primary--small {
  padding: 10px 20px;
  font-size: 0.9em;
}

/* How to Claim Section */
.page-khuyen-mai__how-to-claim-section {
  padding: 60px 0;
  background-color: var(--page-background-color); /* Light background */
}

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

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

.page-khuyen-mai__step-icon-wrapper {
  position: relative;
  display: inline-block;
  margin-bottom: 20px;
}

.page-khuyen-mai__step-number {
  position: absolute;
  top: -10px;
  left: -10px;
  background-color: var(--page-primary-color);
  color: var(--page-auxiliary-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.2em;
  border: 2px solid var(--page-auxiliary-color);
}

.page-khuyen-mai__step-icon {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--page-primary-color);
  display: block;
}

.page-khuyen-mai__step-title {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 10px;
  color: var(--page-primary-color);
}

.page-khuyen-mai__step-text {
  font-size: 1em;
  color: #555555;
}

/* Terms Section */
.page-khuyen-mai__terms-section {
  padding: 60px 0;
  background-color: var(--page-primary-color); /* Dark background */
  color: var(--page-auxiliary-color);
}

.page-khuyen-mai__terms-list {
  list-style: disc;
  text-align: left;
  max-width: 800px;
  margin: 40px auto;
  padding-left: 20px;
}

.page-khuyen-mai__terms-item {
  margin-bottom: 10px;
  font-size: 1.1em;
  color: rgba(255, 255, 255, 0.9);
}

.page-khuyen-mai__text-link {
  color: var(--page-register-login-font-color); /* Custom color #FFFF00 for links on dark background */
  text-decoration: underline;
  transition: color 0.3s ease;
}

.page-khuyen-mai__text-link:hover {
  color: var(--page-auxiliary-color);
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: 60px 0;
  background-color: var(--page-background-color); /* Light background */
}

.page-khuyen-mai__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
  border-top: 1px solid #e0e0e0;
}

.page-khuyen-mai__faq-item {
  border-bottom: 1px solid #e0e0e0;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-size: 1.2em;
  font-weight: bold;
  color: var(--page-primary-color);
}

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

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: #777;
}

.page-khuyen-mai__faq-answer {
  padding-bottom: 20px;
  font-size: 1.1em;
  color: #555555;
  line-height: 1.6;
}

/* Bottom CTA Section */
.page-khuyen-mai__cta-bottom-section {
  padding: 60px 0;
  background-color: var(--page-primary-color); /* Dark background */
  color: var(--page-auxiliary-color);
  text-align: center;
}

.page-khuyen-mai__cta-bottom-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

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

/* Mobile responsive styles */
@media (max-width: 768px) {
  .page-khuyen-mai__container {
    padding: 20px 15px !important;
  }

  .page-khuyen-mai__section-title {
    font-size: 2em !important;
    margin-bottom: 15px !important;
  }

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

  /* HERO Section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px !important;
  }

  .page-khuyen-mai__hero-container {
    flex-direction: column;
    gap: 30px;
  }

  .page-khuyen-mai__hero-content {
    order: 2;
    text-align: center;
  }

  .page-khuyen-mai__main-title {
    font-size: 2.2em !important;
    margin-bottom: 15px !important;
  }

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

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

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

  .page-khuyen-mai__hero-image {
    order: 1;
    min-width: unset;
  }

  /* Promo Categories Section */
  .page-khuyen-mai__categories-section {
    padding: 40px 0 !important;
  }

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

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

  /* How to Claim Section */
  .page-khuyen-mai__how-to-claim-section {
    padding: 40px 0 !important;
  }

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

  .page-khuyen-mai__step-icon {
    width: 150px !important;
    height: 150px !important;
  }

  .page-khuyen-mai__step-number {
    width: 35px !important;
    height: 35px !important;
    font-size: 1em !important;
    top: -5px !important;
    left: -5px !important;
  }

  /* Terms Section */
  .page-khuyen-mai__terms-section {
    padding: 40px 0 !important;
  }

  .page-khuyen-mai__terms-list {
    margin-top: 20px !important;
    padding-left: 15px !important;
  }

  .page-khuyen-mai__terms-item {
    font-size: 1em !important;
  }

  /* FAQ Section */
  .page-khuyen-mai__faq-section {
    padding: 40px 0 !important;
  }

  .page-khuyen-mai__faq-question {
    font-size: 1em !important;
    padding: 15px 0 !important;
  }

  .page-khuyen-mai__faq-answer {
    font-size: 0.95em !important;
    padding-bottom: 15px !important;
  }

  /* Bottom CTA Section */
  .page-khuyen-mai__cta-bottom-section {
    padding: 40px 0 !important;
  }

  .page-khuyen-mai__cta-bottom-container .page-khuyen-mai__cta-buttons {
    padding: 0 !important;
  }

  /* General image and container responsiveness */
  .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,
  .page-khuyen-mai__cta-buttons,
  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__steps-grid,
  .page-khuyen-mai__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
}