.page-khuyen-mai__hero-section {
  padding-top: 10px;
  padding-bottom: 40px;
  background-color: var(--primary-color);
  color: var(--secondary-color);
}

.page-khuyen-mai__hero-container {
  max-width: 1170px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 40px 16px;
  gap: 24px;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 45%;
  min-width: 300px;
}

.page-khuyen-mai__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--secondary-color);
  margin-bottom: 20px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
  font-size: clamp(28px, 4vw, 48px); /* Using clamp as allowed */
}

.page-khuyen-mai__hero-description {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 30px;
  color: var(--secondary-color);
}

.page-khuyen-mai__hero-cta {
  display: inline-block;
  padding: 12px 30px;
  font-size: 18px;
  font-weight: 600;
  border-radius: 8px;
  transition: background-color 0.3s ease, transform 0.3s ease;
  text-decoration: none;
  text-align: center;
}

.page-khuyen-mai__hero-image {
  flex: 1 1 45%;
  min-width: 300px;
  text-align: center;
}

.page-khuyen-mai__hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
  margin: 0 auto;
}

.page-khuyen-mai__content-area {
  max-width: 1170px;
  margin: 0 auto;
  padding: 40px 16px;
}

.page-khuyen-mai__section-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.3;
}

.page-khuyen-mai__section-description {
  font-size: 18px;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-khuyen-mai__light-bg {
  background-color: var(--secondary-color);
  color: #333333;
}

.page-khuyen-mai__dark-bg {
  background-color: var(--primary-color);
  color: var(--secondary-color);
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__section-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__card-title,
.page-khuyen-mai__dark-bg .page-khuyen-mai__vip-level {
  color: var(--secondary-color);
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__section-description,
.page-khuyen-mai__dark-bg .page-khuyen-mai__card-description,
.page-khuyen-mai__dark-bg .page-khuyen-mai__vip-benefit {
  color: var(--secondary-color);
  opacity: 0.9;
}

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

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

.page-khuyen-mai__card {
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  padding: 25px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #333333;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.page-khuyen-mai__card img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-khuyen-mai__card-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.page-khuyen-mai__card-description {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

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

.page-khuyen-mai__rebate-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__rebate-text,
.page-khuyen-mai__rebate-image {
  flex: 1 1 45%;
  min-width: 300px;
}

.page-khuyen-mai__rebate-text p {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.page-khuyen-mai__rebate-text ul {
  list-style: none;
  padding-left: 0;
  margin-bottom: 30px;
}

.page-khuyen-mai__rebate-text ul li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 10px;
  font-size: 16px;
}

.page-khuyen-mai__rebate-text ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary-color);
  font-weight: 700;
}

.page-khuyen-mai__rebate-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
}

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

.page-khuyen-mai__reload-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 30px;
  margin-top: 40px;
  flex-direction: row-reverse; /* Image on left, text on right */
}

.page-khuyen-mai__reload-content img,
.page-khuyen-mai__reload-text {
  flex: 1 1 45%;
  min-width: 300px;
}

.page-khuyen-mai__reload-content img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
}

.page-khuyen-mai__reload-text p {
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 30px;
}

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

.page-khuyen-mai__vip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
  margin-bottom: 40px;
}

.page-khuyen-mai__vip-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s ease;
}

.page-khuyen-mai__vip-item:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.page-khuyen-mai__vip-level {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--secondary-color);
}

.page-khuyen-mai__vip-benefit {
  font-size: 16px;
  line-height: 1.6;
  color: var(--secondary-color);
  opacity: 0.8;
}

.page-khuyen-mai__vip-image {
  text-align: center;
  margin-bottom: 40px;
}

.page-khuyen-mai__vip-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
  margin: 0 auto;
}

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

.page-khuyen-mai__terms-list {
  list-style: disc;
  padding-left: 20px;
  max-width: 800px;
  margin: 40px auto;
  font-size: 16px;
  line-height: 1.7;
  color: #333333;
}

.page-khuyen-mai__terms-list li {
  margin-bottom: 10px;
}

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

.page-khuyen-mai__faq-list {
  max-width: 800px;
  margin: 40px auto 0;
}

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

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  list-style: none;
}

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

.page-khuyen-mai__faq-question:hover {
  background-color: #00602F; /* Slightly darker primary color */
}

.page-khuyen-mai__faq-qtext {
  flex-grow: 1;
  pointer-events: none; /* Prevent text selection from interfering with click */
}

.page-khuyen-mai__faq-toggle {
  font-size: 24px;
  line-height: 1;
  margin-left: 15px;
  transition: transform 0.3s ease;
  pointer-events: none;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
  transform: rotate(45deg);
}

.page-khuyen-mai__faq-answer {
  padding: 15px 25px 25px;
  font-size: 16px;
  line-height: 1.7;
  background-color: #017439; /* Primary color */
  color: var(--secondary-color);
}

.page-khuyen-mai__btn-primary {
  background-color: #C30808; /* Custom 'Đăng ký' color */
  color: #FFFF00; /* Custom 'Đăng ký' font color */
  border: 2px solid transparent;
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #E00A0A;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background-color: var(--secondary-color);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  display: inline-block;
  padding: 10px 25px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
  text-decoration: none;
  text-align: center;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  transform: translateY(-2px);
}

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

/* Mobile responsiveness */
@media (max-width: 768px) {
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }

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

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

  .page-khuyen-mai__main-title {
    font-size: clamp(24px, 7vw, 38px);
    text-align: center;
  }

  .page-khuyen-mai__hero-description {
    font-size: 16px;
    text-align: center;
  }

  .page-khuyen-mai__hero-cta {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    padding: 10px 20px;
    font-size: 16px;
  }

  .page-khuyen-mai__content-area {
    padding: 30px 15px;
  }

  .page-khuyen-mai__section-title {
    font-size: 28px;
  }

  .page-khuyen-mai__section-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .page-khuyen-mai__bonus-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__card {
    padding: 20px;
  }

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

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

  .page-khuyen-mai__rebate-content,
  .page-khuyen-mai__reload-content {
    flex-direction: column;
    gap: 20px;
  }

  .page-khuyen-mai__rebate-text,
  .page-khuyen-mai__rebate-image,
  .page-khuyen-mai__reload-content img,
  .page-khuyen-mai__reload-text {
    flex: 1 1 100%;
    min-width: unset;
  }

  .page-khuyen-mai__rebate-text p,
  .page-khuyen-mai__reload-text p {
    font-size: 16px;
  }

  .page-khuyen-mai__rebate-text ul li {
    font-size: 15px;
  }

  .page-khuyen-mai__vip-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-khuyen-mai__vip-item {
    padding: 20px;
  }

  .page-khuyen-mai__vip-level {
    font-size: 20px;
  }

  .page-khuyen-mai__vip-benefit {
    font-size: 15px;
  }

  .page-khuyen-mai__terms-list {
    font-size: 15px;
    padding-left: 15px;
  }

  .page-khuyen-mai__faq-question {
    padding: 15px 20px;
    font-size: 16px;
  }

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

  /* Universal image and container rules 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,
  .page-khuyen-mai__bonus-grid,
  .page-khuyen-mai__rebate-content,
  .page-khuyen-mai__reload-content,
  .page-khuyen-mai__vip-grid,
  .page-khuyen-mai__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Button responsive styles for mobile */
  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary,
  .page-khuyen-mai a[class*="button"],
  .page-khuyen-mai a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .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;
    display: flex;
    flex-direction: column;
  }

  .page-khuyen-mai__terms-section .page-khuyen-mai__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}