/* style/khuyn-mi.css */

:root {
  --page-khuyn-mi-primary-color: #003366;
  --page-khuyn-mi-secondary-color: #FFCC00;
  --page-khuyn-mi-text-light: #ffffff;
  --page-khuyn-mi-text-dark: #333333;
  --page-khuyn-mi-bg-light: #f4f7f6;
  --page-khuyn-mi-bg-dark: #0a1e3a;
  --page-khuyn-mi-border-color: #e0e0e0;
}

.page-khuyn-mi {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--page-khuyn-mi-text-dark);
  background-color: var(--page-khuyn-mi-bg-light);
}

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

.page-khuyn-mi__main-title,
.page-khuyn-mi__section-title {
  color: var(--page-khuyn-mi-primary-color);
  text-align: center;
  margin-bottom: 25px;
  font-weight: bold;
}

.page-khuyn-mi__main-title {
  font-size: 2.8em;
  color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__section-title {
  font-size: 2.2em;
}

.page-khuyn-mi__section-description {
  text-align: center;
  font-size: 1.1em;
  margin-bottom: 40px;
  color: var(--page-khuyn-mi-text-dark);
}

.page-khuyn-mi__bg--dark {
  background-color: var(--page-khuyn-mi-bg-dark);
  color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__bg--dark .page-khuyn-mi__section-title,
.page-khuyn-mi__bg--dark .page-khuyn-mi__section-description {
  color: var(--page-khuyn-mi-text-light);
}

/* Hero Section */
.page-khuyn-mi__hero-section {
  background: linear-gradient(135deg, var(--page-khuyn-mi-primary-color) 0%, #001a33 100%);
  padding: 80px 0;
  text-align: center;
  color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__hero-description {
  font-size: 1.2em;
  max-width: 800px;
  margin: 0 auto 40px auto;
  line-height: 1.8;
}

.page-khuyn-mi__hero-cta {
  margin-top: 30px;
}

/* Buttons */
.page-khuyn-mi__btn {
  display: inline-block;
  padding: 15px 35px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  margin: 10px;
  font-size: 1.1em;
  border: none;
  cursor: pointer;
}

.page-khuyn-mi__btn--primary {
  background-color: var(--page-khuyn-mi-secondary-color);
  color: var(--page-khuyn-mi-primary-color);
}

.page-khuyn-mi__btn--primary:hover {
  background-color: #e6b800;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

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

.page-khuyn-mi__btn--secondary:hover {
  background-color: var(--page-khuyn-mi-secondary-color);
  color: var(--page-khuyn-mi-primary-color);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyn-mi__btn--small {
  padding: 10px 20px;
  font-size: 0.9em;
  margin-top: 15px;
}

.page-khuyn-mi__btn--large {
  padding: 18px 45px;
  font-size: 1.3em;
}

/* Promotions Overview */
.page-khuyn-mi__promotions-overview {
  padding: 60px 0;
}

.page-khuyn-mi__promotion-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-khuyn-mi__card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  text-align: center;
  padding-bottom: 30px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyn-mi__card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-khuyn-mi__card-image {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  object-fit: cover;
  margin-bottom: 20px;
}

.page-khuyn-mi__card-title {
  font-size: 1.5em;
  color: var(--page-khuyn-mi-primary-color);
  margin-bottom: 15px;
  padding: 0 15px;
}

.page-khuyn-mi__card-title a {
  color: inherit;
  text-decoration: none;
}

.page-khuyn-mi__card-title a:hover {
  text-decoration: underline;
}

.page-khuyn-mi__card-text {
  font-size: 1em;
  color: var(--page-khuyn-mi-text-dark);
  padding: 0 20px;
  margin-bottom: 20px;
}

/* Terms & Conditions */
.page-khuyn-mi__terms-conditions {
  padding: 60px 0;
}

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

.page-khuyn-mi__list-item {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 20px;
  margin-bottom: 15px;
  border-radius: 8px;
  color: var(--page-khuyn-mi-text-light);
  font-size: 1.05em;
}

.page-khuyn-mi__list-item strong {
  color: var(--page-khuyn-mi-secondary-color);
}

.page-khuyn-mi__text-center {
  text-align: center;
  margin-top: 40px;
  font-style: italic;
  color: var(--page-khuyn-mi-text-light);
}

/* How to Claim */
.page-khuyn-mi__how-to-claim {
  padding: 60px 0;
  background-color: var(--page-khuyn-mi-bg-light);
}

.page-khuyn-mi__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-khuyn-mi__step-item {
  background-color: #ffffff;
  padding: 30px 20px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.page-khuyn-mi__step-item:hover {
  transform: translateY(-5px);
}

.page-khuyn-mi__step-icon {
  background-color: var(--page-khuyn-mi-secondary-color);
  color: var(--page-khuyn-mi-primary-color);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  font-weight: bold;
  margin: 0 auto 25px auto;
}

.page-khuyn-mi__step-title {
  font-size: 1.4em;
  color: var(--page-khuyn-mi-primary-color);
  margin-bottom: 15px;
}

.page-khuyn-mi__step-text {
  font-size: 0.95em;
  color: var(--page-khuyn-mi-text-dark);
  margin-bottom: 20px;
}

/* Why Choose */
.page-khuyn-mi__why-choose {
  padding: 60px 0;
}

.page-khuyn-mi__advantages-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyn-mi__advantages-item {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 25px;
  border-radius: 10px;
  text-align: center;
  transition: background-color 0.3s ease;
}

.page-khuyn-mi__advantages-item:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

.page-khuyn-mi__advantages-title {
  font-size: 1.4em;
  color: var(--page-khuyn-mi-secondary-color);
  margin-bottom: 15px;
}

.page-khuyn-mi__advantages-text {
  font-size: 1em;
  color: var(--page-khuyn-mi-text-light);
}

/* FAQ Section */
.page-khuyn-mi__faq {
  padding: 60px 0;
  background-color: var(--page-khuyn-mi-bg-light);
}

.page-khuyn-mi__faq-list {
  margin-top: 40px;
}

/* FAQ default state - answer hidden */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 15px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: var(--page-khuyn-mi-text-dark);
}

/* FAQ expanded state */
.faq-item.active .faq-answer {
  max-height: 500px; /* Sufficient height to contain content */
  padding: 15px;
  border-top: 1px solid var(--page-khuyn-mi-border-color);
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
  transition: transform 0.3s ease;
}

/* Question styling */
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  background: #ffffff;
  border: 1px solid var(--page-khuyn-mi-border-color);
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  margin-bottom: 10px; /* Space between items */
}

.faq-item.active .faq-question {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom-color: transparent;
}

.faq-question:hover {
  background: #f5f5f5;
  border-color: var(--page-khuyn-mi-secondary-color);
}

.faq-question h3 {
  margin: 0;
  font-size: 1.15em;
  color: var(--page-khuyn-mi-primary-color);
}

/* Toggle icon */
.faq-toggle {
  font-size: 20px;
  font-weight: bold;
  color: var(--page-khuyn-mi-secondary-color);
  transition: transform 0.3s ease, color 0.3s ease;
}

/* Call to Action */
.page-khuyn-mi__call-to-action {
  padding: 80px 0;
  background: linear-gradient(135deg, #001a33 0%, var(--page-khuyn-mi-primary-color) 100%);
  text-align: center;
  color: var(--page-khuyn-mi-text-light);
}

.page-khuyn-mi__call-to-action .page-khuyn-mi__section-title,
.page-khuyn-mi__call-to-action .page-khuyn-mi__section-description {
  color: var(--page-khuyn-mi-text-light);
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-khuyn-mi__main-title {
    font-size: 2.2em;
  }
  .page-khuyn-mi__section-title {
    font-size: 1.8em;
  }
  .page-khuyn-mi__hero-description {
    font-size: 1.1em;
  }
  .page-khuyn-mi__promotion-cards,
  .page-khuyn-mi__steps-grid,
  .page-khuyn-mi__advantages-list {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-khuyn-mi__hero-section {
    padding: 60px 0;
  }
  .page-khuyn-mi__main-title {
    font-size: 1.8em;
  }
  .page-khuyn-mi__section-title {
    font-size: 1.6em;
  }
  .page-khuyn-mi__section-description {
    font-size: 1em;
  }
  .page-khuyn-mi__btn {
    padding: 12px 25px;
    font-size: 1em;
    margin: 8px;
  }
  .page-khuyn-mi__btn--large {
    padding: 15px 35px;
    font-size: 1.1em;
  }
  .page-khuyn-mi__card-image {
    height: 180px;
  }
  .page-khuyn-mi__card-title {
    font-size: 1.3em;
  }
  .page-khuyn-mi__list-item,
  .page-khuyn-mi__advantages-text {
    font-size: 0.95em;
  }
  .faq-question {
    flex-direction: column;
    align-items: flex-start;
  }
  .faq-question h3 {
    margin-bottom: 8px;
  }
  .faq-toggle {
    align-self: flex-end;
    margin-top: -30px;
  }
}

@media (max-width: 480px) {
  .page-khuyn-mi__container {
    padding: 15px;
  }
  .page-khuyn-mi__main-title {
    font-size: 1.5em;
  }
  .page-khuyn-mi__section-title {
    font-size: 1.4em;
  }
  .page-khuyn-mi__btn {
    display: block;
    width: calc(100% - 20px);
    margin: 10px auto;
  }
  .page-khuyn-mi__card {
    padding-bottom: 20px;
  }
  .page-khuyn-mi__card-image {
    height: 150px;
  }
  .page-khuyn-mi__card-title {
    font-size: 1.2em;
  }
  .page-khuyn-mi__step-icon {
    width: 50px;
    height: 50px;
    font-size: 1.8em;
  }
  .page-khuyn-mi__step-title {
    font-size: 1.2em;
  }
  .page-khuyn-mi__advantages-title {
    font-size: 1.2em;
  }
  .faq-question h3 {
    font-size: 1em;
  }
  .faq-toggle {
    font-size: 18px;
  }
}