/* style/khuyen-mai.css */

:root {
  --primary-color: #26A9E0;
  --secondary-color: #FFFFFF;
  --text-dark: #333333;
  --text-light: #ffffff;
  --btn-login: #EA7C07;
}

.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark); /* Default text color for light background */
  background-color: var(--secondary-color);
}

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

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

.page-khuyen-mai__section {
  padding: 40px 0;
}

.page-khuyen-mai__dark-section {
  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__section-title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: bold;
  text-align: center;
  margin-bottom: 30px;
  line-height: 1.2;
  color: inherit; /* Inherit color from parent section */
}

.page-khuyen-mai__main-title {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.2;
  color: var(--primary-color);
}

.page-khuyen-mai__description {
  font-size: 18px;
  text-align: center;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__text-block {
  font-size: 17px;
  margin-bottom: 20px;
  text-align: justify;
}

.page-khuyen-mai__top-section {
  padding-top: 10px; /* Rely on body padding-top for header offset */
  padding-bottom: 40px;
  background-color: var(--secondary-color);
  color: var(--text-dark);
}

.page-khuyen-mai__top-cta {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.page-khuyen-mai__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 25px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

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

.page-khuyen-mai__btn--primary:hover {
  background-color: darken(var(--primary-color), 10%);
  border-color: darken(var(--primary-color), 10%);
}

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

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

.page-khuyen-mai__btn--small {
  padding: 8px 18px;
  font-size: 16px;
}

.page-khuyen-mai__image-figure {
  margin: 30px 0;
  text-align: center;
}

.page-khuyen-mai__section-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  display: block;
  margin: 0 auto;
}

.page-khuyen-mai__image-caption {
  font-size: 14px;
  color: #666;
  margin-top: 10px;
}

.page-khuyen-mai__dark-section .page-khuyen-mai__image-caption {
  color: rgba(255, 255, 255, 0.8);
}

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

.page-khuyen-mai__promo-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-light);
  transition: transform 0.3s ease;
  height: 100%; /* Ensure cards have equal height */
  box-sizing: border-box;
}

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

.page-khuyen-mai__promo-card .page-khuyen-mai__card-image-wrap {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  overflow: hidden;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__card-title {
  font-size: 22px;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--text-light);
}

.page-khuyen-mai__promo-card .page-khuyen-mai__card-description {
  font-size: 16px;
  margin-bottom: 20px;
  flex-grow: 1; /* Allow description to take available space */
}

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

.page-khuyen-mai__guide-item {
  background-color: var(--secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  color: var(--text-dark);
}

.page-khuyen-mai__guide-item .page-khuyen-mai__guide-step-title {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-khuyen-mai__guide-item p {
  font-size: 16px;
  margin-bottom: 15px;
}

.page-khuyen-mai__terms-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.page-khuyen-mai__terms-item {
  background-color: var(--secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  color: var(--text-dark);
}

.page-khuyen-mai__terms-item .page-khuyen-mai__terms-sub-title {
  font-size: 20px;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.page-khuyen-mai__tips-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.page-khuyen-mai__tips-item {
  background-color: var(--secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  color: var(--text-dark);
}

.page-khuyen-mai__tips-item .page-khuyen-mai__tips-sub-title {
  font-size: 20px;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 10px;
}

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

.page-khuyen-mai__faq-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin-bottom: 15px;
  color: var(--text-light);
}

.page-khuyen-mai__faq-question {
  font-size: 18px;
  font-weight: bold;
  padding: 15px 20px;
  cursor: pointer;
  position: relative;
  color: var(--text-light);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.page-khuyen-mai__faq-question::after {
  content: '+';
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.3s ease;
}

.page-khuyen-mai__faq-item.active .page-khuyen-mai__faq-question::after {
  content: '-';
  transform: translateY(-50%) rotate(45deg);
}

.page-khuyen-mai__faq-answer {
  font-size: 16px;
  padding: 0 20px 15px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.page-khuyen-mai__faq-item.active .page-khuyen-mai__faq-answer {
  max-height: 500px; /* Adjust as needed */
  padding-top: 10px;
}

.page-khuyen-mai__cta-wrapper {
  text-align: center;
  margin-top: 40px;
}

/* --- Responsive Styles --- */

/* Tablet and Mobile */
@media (max-width: 1024px) {
  .page-khuyen-mai__section-title,
  .page-khuyen-mai__main-title {
    font-size: clamp(24px, 4vw, 38px);
  }

  .page-khuyen-mai__description {
    font-size: 17px;
  }

  .page-khuyen-mai__promo-card-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
  }

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

  .page-khuyen-mai__promo-card .page-khuyen-mai__card-title {
    font-size: 20px;
  }

  .page-khuyen-mai__promo-card .page-khuyen-mai__card-description {
    font-size: 15px;
  }

  .page-khuyen-mai__guide-item .page-khuyen-mai__guide-step-title,
  .page-khuyen-mai__terms-item .page-khuyen-mai__terms-sub-title,
  .page-khuyen-mai__tips-item .page-khuyen-mai__tips-sub-title {
    font-size: 22px;
  }

  .page-khuyen-mai__faq-question {
    font-size: 17px;
  }
}

/* Mobile Styles */
@media (max-width: 768px) {
  .page-khuyen-mai__container,
  .page-khuyen-mai__article-wrap {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 1. Top section title + double CTA */
  .page-khuyen-mai__top-section {
    padding-top: 10px !important; /* Ensure minimal top padding */
    padding-bottom: 30px !important;
  }

  .page-khuyen-mai__main-title {
    font-size: clamp(28px, 8vw, 36px) !important;
    margin-bottom: 15px !important;
  }

  .page-khuyen-mai__description {
    font-size: 16px !important;
    margin-bottom: 20px !important;
  }

  .page-khuyen-mai__top-cta,
  .page-khuyen-mai__cta-buttons {
    flex-direction: column !important;
    gap: 10px !important;
  }

  .page-khuyen-mai__btn {
    width: 100% !important;
    max-width: 100% !important;
    font-size: 16px !important;
    padding: 10px 15px !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

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

  .page-khuyen-mai__section-title {
    font-size: clamp(24px, 7vw, 32px) !important;
    margin-bottom: 25px !important;
  }

  .page-khuyen-mai__text-block {
    font-size: 16px !important;
    margin-bottom: 15px !important;
  }

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

  .page-khuyen-mai__promo-card {
    padding: 15px !important;
  }

  .page-khuyen-mai__promo-card .page-khuyen-mai__card-image-wrap {
    height: 180px !important; /* Adjust fixed height for mobile */
  }

  .page-khuyen-mai__promo-card .page-khuyen-mai__card-title {
    font-size: 18px !important;
    margin-bottom: 10px !important;
  }

  .page-khuyen-mai__promo-card .page-khuyen-mai__card-description {
    font-size: 14px !important;
    margin-bottom: 15px !important;
  }

  .page-khuyen-mai__guide-item,
  .page-khuyen-mai__terms-item,
  .page-khuyen-mai__tips-item {
    padding: 20px !important;
    margin-bottom: 15px !important;
  }

  .page-khuyen-mai__guide-item .page-khuyen-mai__guide-step-title,
  .page-khuyen-mai__terms-item .page-khuyen-mai__terms-sub-title,
  .page-khuyen-mai__tips-item .page-khuyen-mai__tips-sub-title {
    font-size: 20px !important;
    margin-bottom: 10px !important;
  }

  .page-khuyen-mai__guide-item p,
  .page-khuyen-mai__terms-item p,
  .page-khuyen-mai__tips-item p {
    font-size: 15px !important;
  }

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

  .page-khuyen-mai__image-figure {
    margin: 20px 0 !important;
  }

  .page-khuyen-mai__image-caption {
    font-size: 13px !important;
  }

  /* 4. Buttons and button containers (already covered above for .page-khuyen-mai__btn, .page-khuyen-mai__top-cta, .page-khuyen-mai__cta-buttons) */

  /* 5. FAQ blocks */
  .page-khuyen-mai__faq-question {
    font-size: 16px !important;
    padding: 12px 15px !important;
  }

  .page-khuyen-mai__faq-question::after {
    right: 15px !important;
  }

  .page-khuyen-mai__faq-answer {
    font-size: 15px !important;
    padding: 0 15px 12px !important;
  }

  .page-khuyen-mai__cta-wrapper {
    margin-top: 30px !important;
  }
}