/* style/khuyen-mai.css */

:root {
  --page-khuyen-mai-primary-color: #26A9E0;
  --page-khuyen-mai-secondary-color: #FFFFFF;
  --page-khuyen-mai-text-color: #333333;
  --page-khuyen-mai-dark-text-color: #000000;
  --page-khuyen-mai-light-text-color: #FFFFFF;
  --page-khuyen-mai-login-color: #EA7C07;
  --page-khuyen-mai-background-color: #FFFFFF;
  --page-khuyen-mai-border-color: #e0e0e0;
}

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

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Rely on body padding for header offset, add small top padding */
  padding-bottom: 60px;
  background-color: var(--page-khuyen-mai-secondary-color);
  color: var(--page-khuyen-mai-text-color);
}

.page-khuyen-mai__hero-container {
  max-width: 1170px;
  margin: 0 auto;
  padding: 40px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 50%;
  min-width: 300px;
}

.page-khuyen-mai__hero-title {
  font-size: 2.8em;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--page-khuyen-mai-dark-text-color);
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: var(--page-khuyen-mai-text-color);
}

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

.page-khuyen-mai__hero-image {
  flex: 1 1 40%;
  min-width: 300px;
  text-align: center;
}

.page-khuyen-mai__hero-side-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__promo-section {
  padding: 60px 0;
}

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

.page-khuyen-mai__section-title {
  font-size: 2.2em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--page-khuyen-mai-dark-text-color);
}

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

.page-khuyen-mai__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: var(--page-khuyen-mai-text-color);
}

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

.page-khuyen-mai__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.page-khuyen-mai__promo-card {
  background-color: var(--page-khuyen-mai-secondary-color);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  text-align: center;
  padding-bottom: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--page-khuyen-mai-border-color);
}

.page-khuyen-mai__promo-image {
  width: 100%;
  height: 250px; /* Fixed height for consistency */
  object-fit: cover;
  margin-bottom: 20px;
}

.page-khuyen-mai__card-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 15px;
  padding: 0 20px;
  color: var(--page-khuyen-mai-dark-text-color);
}

.page-khuyen-mai__card-text {
  font-size: 1em;
  margin-bottom: 25px;
  padding: 0 20px;
  color: var(--page-khuyen-mai-text-color);
  flex-grow: 1;
}

.page-khuyen-mai__promo-list,
.page-khuyen-mai__terms-list,
.page-khuyen-mai__guide-list {
  list-style: none;
  padding: 0;
  margin: 0 auto 50px;
  max-width: 900px;
  text-align: left;
}

.page-khuyen-mai__promo-list li,
.page-khuyen-mai__terms-list li,
.page-khuyen-mai__guide-list li {
  background-color: var(--page-khuyen-mai-secondary-color);
  margin-bottom: 15px;
  padding: 20px 25px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border-left: 5px solid var(--page-khuyen-mai-primary-color);
  font-size: 1.05em;
  color: var(--page-khuyen-mai-text-color);
}

.page-khuyen-mai__promo-list li strong,
.page-khuyen-mai__terms-list li strong,
.page-khuyen-mai__guide-list li strong {
  color: var(--page-khuyen-mai-dark-text-color);
}

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

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: 600;
  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(--page-khuyen-mai-primary-color);
  color: var(--page-khuyen-mai-light-text-color);
  border: 2px solid var(--page-khuyen-mai-primary-color);
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #1e87c0;
  border-color: #1e87c0;
}

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

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

.page-khuyen-mai__faq-section {
  background-color: var(--page-khuyen-mai-primary-color);
  padding: 60px 0;
  color: var(--page-khuyen-mai-light-text-color);
}

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

.page-khuyen-mai__faq-item {
  background-color: var(--page-khuyen-mai-secondary-color);
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  color: var(--page-khuyen-mai-text-color);
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.1em;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--page-khuyen-mai-secondary-color);
  color: var(--page-khuyen-mai-dark-text-color);
  list-style: none; /* Hide default marker for details summary */
}

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

.page-khuyen-mai__faq-qtext {
  flex-grow: 1;
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  font-weight: bold;
  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: 1em;
  line-height: 1.6;
  color: var(--page-khuyen-mai-text-color);
}

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

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

.page-khuyen-mai__section,
.page-khuyen-mai__card,
.page-khuyen-mai__container,
.page-khuyen-mai__cta-buttons,
.page-khuyen-mai__button-group,
.page-khuyen-mai__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* --- Mobile Responsive Styles (max-width: 768px) --- */
@media (max-width: 768px) {
  .page-khuyen-mai {
    font-size: 15px;
    line-height: 1.5;
  }

  /* HERO Section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Small top padding */
    padding-bottom: 40px;
  }

  .page-khuyen-mai__hero-container {
    flex-direction: column;
    padding: 20px 15px;
    gap: 30px;
  }

  .page-khuyen-mai__hero-content,
  .page-khuyen-mai__hero-image {
    flex: 1 1 100%;
    min-width: unset;
  }

  .page-khuyen-mai__hero-title {
    font-size: 2em;
    text-align: center;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1em;
    text-align: center;
  }

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    gap: 15px;
    align-items: center;
  }

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

  .page-khuyen-mai__content-area {
    padding: 0 15px;
  }

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

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

  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 40px;
  }

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

  .page-khuyen-mai__promo-image {
    height: 200px; /* Adjust height for mobile */
  }

  .page-khuyen-mai__card-title {
    font-size: 1.3em;
    padding: 0 15px;
  }

  .page-khuyen-mai__card-text {
    font-size: 0.9em;
    padding: 0 15px;
  }

  .page-khuyen-mai__promo-list li,
  .page-khuyen-mai__terms-list li,
  .page-khuyen-mai__guide-list li {
    padding: 15px 20px;
    font-size: 0.95em;
    margin-bottom: 10px;
  }

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

  .page-khuyen-mai__cta-buttons,
  .page-khuyen-mai__button-group,
  .page-khuyen-mai__btn-container {
    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__cta-buttons {
    flex-direction: column;
    align-items: center;
  }

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

  .page-khuyen-mai__faq-item {
    margin-bottom: 10px;
  }

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

  .page-khuyen-mai__faq-toggle {
    font-size: 1.2em;
  }

  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 0.95em;
  }

  /* General Image adaptation for mobile */
  .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;
  }
}

/* --- Tablet Responsive Styles (max-width: 1024px) --- */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-title {
    font-size: 2.5em;
  }

  .page-khuyen-mai__section-title {
    font-size: 2em;
  }

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

  .page-khuyen-mai__promo-image {
    height: 220px;
  }
}