/* style/khuyn-mi.css */
:root {
  --primary-color: #FFD700; /* Gold */
  --secondary-color: #8B0000; /* Dark Red */
  --text-color-dark: #333333;
  --text-color-light: #ffffff;
  --background-light: #f5f5f5;
  --background-dark: #2a2a2a;
  --button-hover-dark: #B8860B;
  --button-hover-light: #FFEB3B;
}

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

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

/* Hero Section */
.page-khuyn-mi-hero {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-color-light);
}

.page-khuyn-mi-hero .hero-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-khuyn-mi-hero .hero-image {
  width: 100%;
  margin-bottom: 30px;
}

.page-khuyn-mi-hero .hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-khuyn-mi-hero .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
}

.page-khuyn-mi-hero h1 {
  font-size: 3.2em;
  margin-bottom: 20px;
  color: var(--text-color-light);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-khuyn-mi-hero p {
  font-size: 1.3em;
  margin-bottom: 30px;
  color: var(--text-color-light);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyn-mi-hero .cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--primary-color);
  color: var(--text-color-dark);
  text-decoration: none;
  border-radius: 5px;
  font-size: 1.2em;
  font-weight: bold;
  margin-top: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 2px solid var(--primary-color);
}

.page-khuyn-mi-hero .cta-button:hover {
  background: var(--button-hover-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  border-color: var(--button-hover-light);
}

/* Intro Section */
.page-khuyn-mi-intro {
  padding: 60px 0;
  background-color: var(--background-light);
  text-align: center;
}

.page-khuyn-mi-intro h2 {
  font-size: 2.5em;
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.page-khuyn-mi-intro p {
  font-size: 1.1em;
  max-width: 900px;
  margin: 0 auto 40px auto;
  color: var(--text-color-dark);
}

.page-khuyn-mi-intro .intro-cards {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.page-khuyn-mi-intro .intro-card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  padding: 30px;
  width: calc(33% - 20px);
  box-sizing: border-box;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyn-mi-intro .intro-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.page-khuyn-mi-intro .intro-card img {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  object-fit: cover;
}

.page-khuyn-mi-intro .intro-card h3 {
  font-size: 1.5em;
  color: var(--secondary-color);
  margin-bottom: 15px;
}

.page-khuyn-mi-intro .intro-card p {
  font-size: 1em;
  color: #666666;
  margin-bottom: 0;
}

/* Promo Sections */
.page-khuyn-mi-sections {
  padding: 60px 0;
  background-color: var(--background-dark);
  color: var(--text-color-light);
}

.page-khuyn-mi-sections h2 {
  font-size: 2.5em;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 50px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.page-khuyn-mi-sections .promo-category {
  margin-bottom: 60px;
  background-color: #3a3a3a;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.page-khuyn-mi-sections .promo-category h3 {
  font-size: 2em;
  color: var(--primary-color);
  margin-bottom: 25px;
  border-bottom: 2px solid var(--secondary-color);
  padding-bottom: 15px;
}

.page-khuyn-mi-sections .promo-category p {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #cccccc;
}

.page-khuyn-mi-sections .promo-items {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: center;
}

.page-khuyn-mi-sections .promo-item {
  background-color: #4a4a4a;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  padding: 25px;
  width: calc(33.33% - 20px);
  box-sizing: border-box;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.page-khuyn-mi-sections .promo-item:hover {
  transform: translateY(-8px);
  background-color: #5a5a5a;
}

.page-khuyn-mi-sections .promo-item img {
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 0 auto 20px auto;
  border-radius: 8px;
  object-fit: cover;
}

.page-khuyn-mi-sections .promo-item h4 {
  font-size: 1.4em;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-khuyn-mi-sections .promo-item p {
  font-size: 1em;
  color: #dddddd;
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-khuyn-mi-sections .promo-item .promo-button {
  display: inline-block;
  padding: 12px 25px;
  background: var(--secondary-color);
  color: var(--text-color-light);
  text-decoration: none;
  border-radius: 5px;
  font-size: 1em;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: 2px solid var(--secondary-color);
}

.page-khuyn-mi-sections .promo-item .promo-button:hover {
  background: var(--button-hover-dark);
  transform: translateY(-2px);
  border-color: var(--button-hover-dark);
}

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

.page-khuyn-mi-terms h2 {
  font-size: 2.5em;
  color: var(--secondary-color);
  text-align: center;
  margin-bottom: 30px;
}

.page-khuyn-mi-terms p {
  font-size: 1.1em;
  margin-bottom: 20px;
  color: var(--text-color-dark);
}

.page-khuyn-mi-terms ul {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 30px;
  color: var(--text-color-dark);
}

.page-khuyn-mi-terms ul li {
  font-size: 1em;
  margin-bottom: 10px;
}

.page-khuyn-mi-terms ul li strong {
  color: var(--secondary-color);
}

.page-khuyn-mi-terms .cta-button-small {
  display: inline-block;
  padding: 10px 25px;
  background: var(--primary-color);
  color: var(--text-color-dark);
  text-decoration: none;
  border-radius: 5px;
  font-size: 1em;
  font-weight: bold;
  margin-top: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border: 2px solid var(--primary-color);
}

.page-khuyn-mi-terms .cta-button-small:hover {
  background: var(--button-hover-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border-color: var(--button-hover-light);
}

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

.page-khuyn-mi-faq h2 {
  font-size: 2.5em;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 40px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.page-khuyn-mi-faq .faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyn-mi-faq .faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: #4a4a4a;
  color: var(--text-color-light);
  border-bottom: 1px solid #555555;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-khuyn-mi-faq .faq-question:hover {
  background: #5a5a5a;
}

.page-khuyn-mi-faq .faq-question h3 {
  font-size: 1.2em;
  margin: 0;
  color: var(--primary-color);
}

.page-khuyn-mi-faq .faq-toggle {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--primary-color);
  transition: transform 0.3s ease;
}

.page-khuyn-mi-faq .faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.page-khuyn-mi-faq .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 25px;
  background: #3a3a3a;
  color: #cccccc;
}

.page-khuyn-mi-faq .faq-item.active .faq-answer {
  max-height: 500px; /* Sufficient height for content */
  padding: 20px 25px;
}

.page-khuyn-mi-faq .faq-answer p {
  margin: 0;
  font-size: 1em;
}

/* Conclusion Section */
.page-khuyn-mi-conclusion {
  padding: 60px 0;
  background-color: var(--background-light);
  text-align: center;
}

.page-khuyn-mi-conclusion h2 {
  font-size: 2.5em;
  color: var(--secondary-color);
  margin-bottom: 20px;
}

.page-khuyn-mi-conclusion p {
  font-size: 1.1em;
  max-width: 900px;
  margin: 0 auto 40px auto;
  color: var(--text-color-dark);
}

.page-khuyn-mi-conclusion .cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--secondary-color);
  color: var(--text-color-light);
  text-decoration: none;
  border-radius: 5px;
  font-size: 1.2em;
  font-weight: bold;
  margin-top: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 2px solid var(--secondary-color);
}

.page-khuyn-mi-conclusion .cta-button:hover {
  background: var(--button-hover-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  border-color: var(--button-hover-dark);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-khuyn-mi-intro .intro-card,
  .page-khuyn-mi-sections .promo-item {
    width: calc(50% - 20px);
  }
}

@media (max-width: 768px) {
  .page-khuyn-mi-hero h1 {
    font-size: 2.5em;
  }

  .page-khuyn-mi-hero p {
    font-size: 1.1em;
  }

  .page-khuyn-mi-hero .cta-button {
    padding: 12px 30px;
    font-size: 1.1em;
  }

  .page-khuyn-mi-intro h2,
  .page-khuyn-mi-sections h2,
  .page-khuyn-mi-terms h2,
  .page-khuyn-mi-faq h2,
  .page-khuyn-mi-conclusion h2 {
    font-size: 2em;
  }

  .page-khuyn-mi-intro .intro-cards,
  .page-khuyn-mi-sections .promo-items {
    flex-direction: column;
    align-items: center;
  }

  .page-khuyn-mi-intro .intro-card,
  .page-khuyn-mi-sections .promo-item {
    width: 90%;
    max-width: 400px;
  }

  .page-khuyn-mi-sections .promo-category {
    padding: 30px 20px;
  }

  .page-khuyn-mi-sections .promo-category h3 {
    font-size: 1.8em;
  }

  .page-khuyn-mi-faq .faq-question {
    padding: 15px 20px;
  }

  .page-khuyn-mi-faq .faq-question h3 {
    font-size: 1.1em;
  }

  .page-khuyn-mi-faq .faq-answer {
    padding: 0 20px;
  }

  .page-khuyn-mi-faq .faq-item.active .faq-answer {
    padding: 15px 20px;
  }
}

@media (max-width: 480px) {
  .page-khuyn-mi-hero h1 {
    font-size: 2em;
  }

  .page-khuyn-mi-hero p {
    font-size: 1em;
  }

  .page-khuyn-mi-hero .cta-button {
    padding: 10px 25px;
    font-size: 1em;
  }

  .page-khuyn-mi-intro h2,
  .page-khuyn-mi-sections h2,
  .page-khuyn-mi-terms h2,
  .page-khuyn-mi-faq h2,
  .page-khuyn-mi-conclusion h2 {
    font-size: 1.8em;
  }

  .page-khuyn-mi-intro .intro-card,
  .page-khuyn-mi-sections .promo-item {
    width: 100%;
  }

  .page-khuyn-mi-sections .promo-category h3 {
    font-size: 1.6em;
  }

  .page-khuyn-mi-faq .faq-question h3 {
    font-size: 1em;
  }

  .page-khuyn-mi-faq .faq-toggle {
    font-size: 1.5em;
  }
}