.page-khuyen-mai { color: #333333; background-color: var(--secondary-color); font-family: 'Arial', sans-serif; line-height: 1.6; }
.page-khuyen-mai__hero-section { padding-top: 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; position: relative; overflow: hidden; background-color: #017439; color: #ffffff; }
.page-khuyen-mai__hero-image { width: 100%; height: auto; display: block; }
.page-khuyen-mai__hero-image img { width: 100%; height: auto; display: block; object-fit: cover; }
.page-khuyen-mai__hero-content { max-width: 900px; padding: 40px 20px; z-index: 1; }
.page-khuyen-mai__main-title { font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 700; margin-bottom: 20px; line-height: 1.2; color: #ffffff; letter-spacing: -0.02em; }
.page-khuyen-mai__hero-description { font-size: 1.15rem; margin-bottom: 30px; opacity: 0.9; }
.page-khuyen-mai__cta-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.page-khuyen-mai__btn-primary, .page-khuyen-mai__btn-secondary, .page-khuyen-mai__btn-text { display: inline-block; padding: 15px 30px; border-radius: 8px; text-decoration: none; font-weight: 700; transition: all 0.3s ease; white-space: normal; word-wrap: break-word; text-align: center; box-sizing: border-box; }
.page-khuyen-mai__btn-primary { background-color: #C30808; color: #FFFF00; border: 2px solid transparent; }
.page-khuyen-mai__btn-primary:hover { background-color: #e02020; transform: translateY(-2px); }
.page-khuyen-mai__btn-secondary { background-color: #ffffff; color: #017439; border: 2px solid #017439; }
.page-khuyen-mai__btn-secondary:hover { background-color: #f0f0f0; transform: translateY(-2px); }
.page-khuyen-mai__btn-text { background: none; color: #017439; border: none; padding: 0; text-decoration: underline; }
.page-khuyen-mai__btn-text:hover { color: #005f2c; }

.page-khuyen-mai__container { max-width: 1200px; margin: 0 auto; padding: 60px 20px; }
.page-khuyen-mai__section-title { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; text-align: center; margin-bottom: 25px; color: #017439; }
.page-khuyen-mai__section-description { font-size: 1.05rem; text-align: center; max-width: 800px; margin: 0 auto 40px; opacity: 0.9; }

.page-khuyen-mai__light-bg { background-color: #ffffff; color: #333333; }
.page-khuyen-mai__dark-bg { background-color: #017439; color: #ffffff; }
.page-khuyen-mai__dark-section { background-color: #017439; color: #ffffff; }
.page-khuyen-mai__dark-section .page-khuyen-mai__section-title { color: #ffffff; }
.page-khuyen-mai__dark-section .page-khuyen-mai__section-description { color: #f0f0f0; }

.page-khuyen-mai__features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-top: 40px; }
.page-khuyen-mai__feature-item { background-color: #f8f8f8; padding: 30px; border-radius: 12px; text-align: center; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05); }
.page-khuyen-mai__feature-item .page-khuyen-mai__feature-title { font-size: 1.5rem; font-weight: 600; margin-bottom: 15px; color: #017439; }

.page-khuyen-mai__promo-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-top: 40px; }
.page-khuyen-mai__promo-card { background-color: #ffffff; border-radius: 12px; overflow: hidden; box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1); display: flex; flex-direction: column; text-align: center; padding-bottom: 30px; }
.page-khuyen-mai__promo-image { width: 100%; height: 250px; overflow: hidden; margin-bottom: 20px; }
.page-khuyen-mai__promo-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.page-khuyen-mai__promo-title { font-size: 1.6rem; font-weight: 700; margin-bottom: 15px; padding: 0 20px; color: #017439; }
.page-khuyen-mai__promo-description { font-size: 1rem; margin-bottom: 25px; padding: 0 20px; flex-grow: 1; }

.page-khuyen-mai__steps-list { list-style: none; counter-reset: step-counter; padding: 0; max-width: 900px; margin: 40px auto; }
.page-khuyen-mai__steps-list li { display: flex; align-items: flex-start; margin-bottom: 30px; position: relative; padding-left: 70px; }
.page-khuyen-mai__steps-list li::before { content: counter(step-counter); counter-increment: step-counter; background-color: #017439; color: #ffffff; width: 45px; height: 45px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 700; position: absolute; left: 0; top: 0; }
.page-khuyen-mai__step-title { font-size: 1.4rem; font-weight: 600; margin-bottom: 10px; color: #017439; }
.page-khuyen-mai__steps-list li p { font-size: 1rem; }
.page-khuyen-mai__steps-list li a { color: #C30808; text-decoration: underline; }
.page-khuyen-mai__steps-list li a:hover { color: #e02020; }

.page-khuyen-mai__terms-list { list-style: disc; max-width: 900px; margin: 40px auto; padding-left: 40px; font-size: 1rem; color: #f0f0f0; }
.page-khuyen-mai__terms-list li { margin-bottom: 10px; }

.page-khuyen-mai__news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-top: 40px; }
.page-khuyen-mai__news-card { background-color: #ffffff; border-radius: 12px; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05); padding: 30px; display: flex; flex-direction: column; }
.page-khuyen-mai__news-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 10px; line-height: 1.3; }
.page-khuyen-mai__news-title a { color: #017439; text-decoration: none; }
.page-khuyen-mai__news-title a:hover { text-decoration: underline; }
.page-khuyen-mai__news-date { font-size: 0.9rem; color: #666; margin-bottom: 15px; }
.page-khuyen-mai__news-summary { font-size: 1rem; margin-bottom: 20px; flex-grow: 1; }

.page-khuyen-mai__faq-list { max-width: 900px; margin: 40px auto; }
.page-khuyen-mai__faq-item { background-color: #ffffff; border-radius: 12px; margin-bottom: 20px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08); overflow: hidden; }
.page-khuyen-mai__faq-question { display: flex; justify-content: space-between; align-items: center; padding: 20px 30px; cursor: pointer; background-color: #f9f9f9; font-size: 1.15rem; font-weight: 600; color: #017439; list-style: none; }
.page-khuyen-mai__faq-question::-webkit-details-marker { display: none; }
.page-khuyen-mai__faq-toggle { font-size: 1.8rem; line-height: 1; 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: 20px 30px 30px; font-size: 1rem; line-height: 1.6; border-top: 1px solid #eee; color: #333333; }
.page-khuyen-mai__faq-answer p { margin-bottom: 0; }
.page-khuyen-mai__faq-answer a { color: #C30808; text-decoration: underline; }
.page-khuyen-mai__faq-answer a:hover { color: #e02020; }

.page-khuyen-mai__cta-wrapper { text-align: center; margin-top: 50px; }

/* Mobile responsive styles */
@media (max-width: 768px) {
  .page-khuyen-mai { font-size: 16px; line-height: 1.6; }
  .page-khuyen-mai__hero-section { padding-top: 10px; }
  .page-khuyen-mai__hero-content { padding: 30px 15px; }
  .page-khuyen-mai__main-title { font-size: 2.2rem; margin-bottom: 15px; }
  .page-khuyen-mai__hero-description { font-size: 1rem; margin-bottom: 25px; }
  .page-khuyen-mai__cta-buttons { flex-direction: column; gap: 15px; }
  .page-khuyen-mai__btn-primary, .page-khuyen-mai__btn-secondary, .page-khuyen-mai__btn-text,
  .page-khuyen-mai a[class*="button"], .page-khuyen-mai a[class*="btn"] {
    max-width: 100% !important; width: 100% !important; padding: 12px 20px; font-size: 1rem; white-space: normal !important; word-wrap: break-word !important; box-sizing: border-box !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__container { padding: 40px 15px; }
  .page-khuyen-mai__section-title { font-size: 2rem; margin-bottom: 20px; }
  .page-khuyen-mai__section-description { font-size: 0.95rem; margin-bottom: 30px; }

  .page-khuyen-mai__features-grid, .page-khuyen-mai__promo-grid, .page-khuyen-mai__news-grid {
    grid-template-columns: 1fr; gap: 25px;
  }
  .page-khuyen-mai__feature-item, .page-khuyen-mai__promo-card, .page-khuyen-mai__news-card {
    padding: 25px;
  }
  .page-khuyen-mai__promo-image { height: 200px; }
  .page-khuyen-mai__promo-title { font-size: 1.4rem; }
  .page-khuyen-mai__promo-description { font-size: 0.95rem; }

  .page-khuyen-mai__steps-list { margin-top: 30px; }
  .page-khuyen-mai__steps-list li { padding-left: 60px; margin-bottom: 25px; }
  .page-khuyen-mai__steps-list li::before { width: 40px; height: 40px; font-size: 1.2rem; }
  .page-khuyen-mai__step-title { font-size: 1.25rem; }
  .page-khuyen-mai__steps-list li p { font-size: 0.95rem; }

  .page-khuyen-mai__terms-list { padding-left: 25px; font-size: 0.95rem; }

  .page-khuyen-mai__news-title { font-size: 1.25rem; }
  .page-khuyen-mai__news-date, .page-khuyen-mai__news-summary { font-size: 0.9rem; }

  .page-khuyen-mai__faq-question { padding: 18px 25px; font-size: 1.05rem; }
  .page-khuyen-mai__faq-toggle { font-size: 1.5rem; }
  .page-khuyen-mai__faq-answer { padding: 15px 25px 25px; font-size: 0.95rem; }

  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-khuyen-mai__hero-image, .page-khuyen-mai__promo-image, .page-khuyen-mai__news-card, .page-khuyen-mai__card, .page-khuyen-mai__section, .page-khuyen-mai__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-khuyen-mai__hero-image { padding-left: 0; padding-right: 0; }
  .page-khuyen-mai__promo-card, .page-khuyen-mai__news-card, .page-khuyen-mai__faq-item {
    padding-left: 0; padding-right: 0; /* Card content padding is internal */
  }
  .page-khuyen-mai__feature-item { padding: 20px; }
}