/* style/khuyen-mai.css */
:root {
  --primary-color: #003366;
  --secondary-color: #FFD700;
  --text-dark: #333333;
  --text-light: #ffffff;
  --bg-light: #f8f8f8;
  --bg-dark: #002244;
  --border-color: #e0e0e0;
}

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

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

.page-khuyen-mai section {
  padding: 60px 0;
  text-align: center;
}

.page-khuyen-mai h1,
.page-khuyen-mai h2,
.page-khuyen-mai h3,
.page-khuyen-mai h4 {
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: bold;
}

.page-khuyen-mai h1 {
  font-size: 3.2em;
  color: var(--text-light);
}

.page-khuyen-mai h2 {
  font-size: 2.5em;
  margin-top: 40px;
  margin-bottom: 30px;
}

.page-khuyen-mai h3 {
  font-size: 1.8em;
  margin-bottom: 15px;
}

.page-khuyen-mai p {
  margin-bottom: 20px;
  font-size: 1.1em;
}

.page-khuyen-mai .btn {
  display: inline-block;
  padding: 15px 35px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  font-size: 1.1em;
  border: none;
  cursor: pointer;
}

.page-khuyen-mai .btn-primary {
  background-color: var(--secondary-color);
  color: var(--primary-color);
}

.page-khuyen-mai .btn-primary:hover {
  background-color: #e6c200;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

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

.page-khuyen-mai .btn-secondary:hover {
  background-color: var(--bg-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-khuyen-mai a:hover {
  text-decoration: underline;
  color: var(--secondary-color);
}

/* Promo Banner */
.page-khuyen-mai .promo-banner {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--bg-dark) 100%);
  padding: 80px 0 40px;
  position: relative;
  overflow: hidden;
}

.page-khuyen-mai .promo-banner .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-khuyen-mai .promo-banner-img {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  margin-bottom: 40px;
}

.page-khuyen-mai .promo-content {
  text-align: center;
  color: var(--text-light);
  max-width: 800px;
  margin: 0 auto;
}

.page-khuyen-mai .promo-content p {
  color: #c0c0c0;
  font-size: 1.2em;
  margin-bottom: 30px;
}

.page-khuyen-mai .promo-content .btn {
  font-size: 1.3em;
  padding: 18px 45px;
}

/* Section Why F168N */
.page-khuyen-mai .section-why-f168n {
  background-color: var(--bg-light);
}

.page-khuyen-mai .grid-3-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai .feature-card {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

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

.page-khuyen-mai .feature-icon {
  width: 120px;
  height: auto;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-khuyen-mai .feature-card h3 {
  color: var(--primary-color);
  font-size: 1.5em;
}

/* Featured Promos */
.page-khuyen-mai .section-featured-promos {
  background-color: #ffffff;
  padding-bottom: 30px;
}

.page-khuyen-mai .promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai .promo-card {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  text-align: left;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.page-khuyen-mai .promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.page-khuyen-mai .promo-card-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai .promo-card-content {
  padding: 25px;
}

.page-khuyen-mai .promo-card-content h3 {
  font-size: 1.6em;
  margin-bottom: 15px;
}

.page-khuyen-mai .promo-card-content h3 a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-khuyen-mai .promo-card-content h3 a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.page-khuyen-mai .promo-card-content p {
  font-size: 1em;
  color: var(--text-dark);
  margin-bottom: 25px;
}

.page-khuyen-mai .promo-card-content .btn {
  font-size: 1em;
  padding: 12px 25px;
}

.page-khuyen-mai .game-specific-promos {
  margin-top: 60px;
  text-align: left;
  background-color: var(--bg-light);
  padding: 40px;
  border-radius: 10px;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-khuyen-mai .game-specific-promos h3 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 30px;
  font-size: 2em;
}

.page-khuyen-mai .game-specific-promos ul {
  list-style: none;
  padding: 0;
}

.page-khuyen-mai .game-specific-promos li {
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px dashed var(--border-color);
}

.page-khuyen-mai .game-specific-promos li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-khuyen-mai .game-specific-promos li h4 {
  font-size: 1.4em;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.page-khuyen-mai .game-specific-promos li h4 a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-khuyen-mai .game-specific-promos li h4 a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.page-khuyen-mai .game-specific-promos li p {
  font-size: 1em;
  color: var(--text-dark);
}

.page-khuyen-mai .vip-program {
  margin-top: 60px;
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 40px;
  border-radius: 10px;
  text-align: center;
}

.page-khuyen-mai .vip-program h3 {
  color: var(--secondary-color);
  font-size: 2.2em;
  margin-bottom: 20px;
}

.page-khuyen-mai .vip-program h3 a {
  color: var(--secondary-color);
  text-decoration: none;
}

.page-khuyen-mai .vip-program h3 a:hover {
  text-decoration: underline;
}

.page-khuyen-mai .vip-program p {
  color: #e0e0e0;
  margin-bottom: 30px;
  font-size: 1.1em;
}

.page-khuyen-mai .vip-program .btn {
  background-color: var(--secondary-color);
  color: var(--primary-color);
}

.page-khuyen-mai .vip-program .btn:hover {
  background-color: #e6c200;
}

/* How to Claim */
.page-khuyen-mai .section-how-to-claim {
  background-color: var(--bg-light);
}

.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 {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.page-khuyen-mai .step-icon {
  width: 150px;
  height: auto;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-khuyen-mai .step-item h4 {
  color: var(--primary-color);
  font-size: 1.6em;
  margin-bottom: 15px;
}

.page-khuyen-mai .step-item h4 a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-khuyen-mai .step-item h4 a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

.page-khuyen-mai .step-item p {
  font-size: 1em;
  color: var(--text-dark);
}

/* Terms and Conditions */
.page-khuyen-mai .section-terms-conditions {
  background-color: #ffffff;
  text-align: left;
}

.page-khuyen-mai .section-terms-conditions ul {
  list-style: disc;
  margin-left: 25px;
  padding: 0;
}

.page-khuyen-mai .section-terms-conditions li {
  margin-bottom: 10px;
  font-size: 1.1em;
  color: var(--text-dark);
}

/* FAQ Section */
.page-khuyen-mai .section-faq {
  background-color: var(--bg-light);
}

.page-khuyen-mai .faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.page-khuyen-mai .faq-item {
  margin-bottom: 15px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.page-khuyen-mai .faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: #ffffff;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.page-khuyen-mai .faq-question:hover {
  background: #f5f5f5;
}

.page-khuyen-mai .faq-question h3 {
  margin: 0;
  font-size: 1.3em;
  color: var(--primary-color);
}

.page-khuyen-mai .faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--secondary-color);
  transition: transform 0.3s ease;
}

.page-khuyen-mai .faq-item.active .faq-toggle {
  transform: rotate(45deg);
  color: var(--primary-color);
}

.page-khuyen-mai .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  padding: 0 25px;
  background-color: #fcfcfc;
  color: var(--text-dark);
}

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

.page-khuyen-mai .faq-answer p {
  margin-bottom: 0;
  font-size: 1em;
}

/* Final CTA */
.page-khuyen-mai .section-cta-final {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 80px 0;
}

.page-khuyen-mai .section-cta-final h2 {
  color: var(--secondary-color);
  font-size: 3em;
}

.page-khuyen-mai .section-cta-final p {
  color: #e0e0e0;
  font-size: 1.2em;
  margin-bottom: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai .cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-khuyen-mai h1 {
    font-size: 2.8em;
  }
  .page-khuyen-mai h2 {
    font-size: 2.2em;
  }
  .page-khuyen-mai h3 {
    font-size: 1.6em;
  }
  .page-khuyen-mai .promo-banner-img {
    max-width: 700px;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai section {
    padding: 40px 0;
  }
  .page-khuyen-mai h1 {
    font-size: 2.2em;
  }
  .page-khuyen-mai h2 {
    font-size: 1.8em;
  }
  .page-khuyen-mai h3 {
    font-size: 1.4em;
  }
  .page-khuyen-mai p {
    font-size: 1em;
  }
  .page-khuyen-mai .promo-banner {
    padding: 60px 0 30px;
  }
  .page-khuyen-mai .promo-banner-img {
    max-width: 100%;
    margin-bottom: 30px;
  }
  .page-khuyen-mai .promo-content .btn {
    font-size: 1.1em;
    padding: 15px 30px;
  }
  .page-khuyen-mai .grid-3-cols, .page-khuyen-mai .promo-grid, .page-khuyen-mai .steps-grid {
    grid-template-columns: 1fr;
  }
  .page-khuyen-mai .feature-icon {
    width: 100px;
  }
  .page-khuyen-mai .promo-card-img {
    height: 200px;
  }
  .page-khuyen-mai .game-specific-promos {
    padding: 30px 20px;
  }
  .page-khuyen-mai .vip-program {
    padding: 30px 20px;
  }
  .page-khuyen-mai .step-icon {
    width: 120px;
  }
  .page-khuyen-mai .faq-question {
    padding: 15px 20px;
  }
  .page-khuyen-mai .faq-question h3 {
    font-size: 1.2em;
  }
  .page-khuyen-mai .faq-answer {
    padding: 0 20px;
  }
  .page-khuyen-mai .faq-item.active .faq-answer {
    padding: 15px 20px;
  }
  .page-khuyen-mai .section-cta-final h2 {
    font-size: 2.2em;
  }
  .page-khuyen-mai .cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-khuyen-mai .cta-buttons .btn {
    width: 80%;
  }
}

@media (max-width: 480px) {
  .page-khuyen-mai h1 {
    font-size: 1.8em;
  }
  .page-khuyen-mai h2 {
    font-size: 1.6em;
  }
  .page-khuyen-mai .promo-content p {
    font-size: 1em;
  }
  .page-khuyen-mai .promo-content .btn {
    font-size: 1em;
    padding: 12px 25px;
  }
  .page-khuyen-mai .faq-question h3 {
    font-size: 1.1em;
  }
  .page-khuyen-mai .faq-toggle {
    font-size: 20px;
  }
  .page-khuyen-mai .section-cta-final h2 {
    font-size: 1.8em;
  }
  .page-khuyen-mai .cta-buttons .btn {
    width: 95%;
  }
}