/* style/khuyen-mai.css */

:root {
  --f8et-primary-color: #017439;
  --f8et-secondary-color: #FFFFFF;
  --f8et-register-btn-bg: #C30808;
  --f8et-login-btn-bg: #C30808;
  --f8et-btn-text-color: #FFFF00;
  --f8et-dark-text: #333333;
  --f8et-light-text: #FFFFFF;
  --f8et-border-color: #e0e0e0;
}

.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--f8et-dark-text);
  background-color: var(--f8et-secondary-color);
}

.page-khuyen-mai__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-khuyen-mai__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Small top padding, relies on body padding-top for header offset */
  background-color: var(--f8et-primary-color);
  color: var(--f8et-light-text);
  text-align: center;
}

.page-khuyen-mai__hero-image-wrap {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.page-khuyen-mai__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-khuyen-mai__hero-content {
  padding: 40px 20px;
  max-width: 900px;
  box-sizing: border-box;
}

.page-khuyen-mai__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--f8et-light-text);
  margin-bottom: 20px;
  max-width: 100%;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  max-width: 100%;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-khuyen-mai__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-register {
  background-color: var(--f8et-register-btn-bg);
  color: var(--f8et-btn-text-color);
  border: 2px solid var(--f8et-register-btn-bg);
}

.page-khuyen-mai__btn-register:hover {
  background-color: #a30606;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-login {
  background-color: var(--f8et-login-btn-bg);
  color: var(--f8et-btn-text-color);
  border: 2px solid var(--f8et-login-btn-bg);
}

.page-khuyen-mai__btn-login:hover {
  background-color: #a30606;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-primary {
  background-color: var(--f8et-primary-color);
  color: var(--f8et-light-text);
  border: 2px solid var(--f8et-primary-color);
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #005a2d;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background-color: var(--f8et-secondary-color);
  color: var(--f8et-primary-color);
  border: 2px solid var(--f8et-primary-color);
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #f0f0f0;
  transform: translateY(-2px);
}

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

.page-khuyen-mai__intro-section {
  background-color: var(--f8et-secondary-color);
  color: var(--f8et-dark-text);
}

.page-khuyen-mai__promo-types-section {
  background-color: var(--f8et-primary-color);
  color: var(--f8et-light-text);
}

.page-khuyen-mai__terms-section {
  background-color: var(--f8et-secondary-color);
  color: var(--f8et-dark-text);
}

.page-khuyen-mai__how-to-claim-section {
  background-color: var(--f8et-primary-color);
  color: var(--f8et-light-text);
}

.page-khuyen-mai__faq-section {
  background-color: var(--f8et-secondary-color);
  color: var(--f8et-dark-text);
}

.page-khuyen-mai__conclusion-section {
  background-color: var(--f8et-primary-color);
  color: var(--f8et-light-text);
}

.page-khuyen-mai__section-title {
  font-size: 2.2em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: inherit;
}

.page-khuyen-mai__sub-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-top: 30px;
  margin-bottom: 15px;
  color: inherit;
}

.page-khuyen-mai__paragraph {
  font-size: 1em;
  margin-bottom: 15px;
  line-height: 1.7;
}

.page-khuyen-mai__list {
  list-style: disc inside;
  margin-left: 20px;
  margin-bottom: 20px;
}

.page-khuyen-mai__list-item {
  margin-bottom: 8px;
}

.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: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-khuyen-mai__promo-image {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__card-title {
  font-size: 1.3em;
  font-weight: 600;
  margin: 20px 20px 10px;
  color: var(--f8et-light-text);
}

.page-khuyen-mai__card-description {
  font-size: 0.95em;
  margin: 0 20px 20px;
  flex-grow: 1;
  color: rgba(255, 255, 255, 0.85);
}

.page-khuyen-mai__promo-card .page-khuyen-mai__btn {
  margin: 0 20px 20px;
  text-align: center;
}

.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-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  padding-bottom: 20px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-khuyen-mai__step-figure {
  position: relative;
  margin: 0;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.page-khuyen-mai__step-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__step-caption {
  position: absolute;
  top: 10px;
  left: 10px;
  background-color: var(--f8et-register-btn-bg);
  color: var(--f8et-btn-text-color);
  padding: 5px 15px;
  border-radius: 5px;
  font-weight: bold;
  font-size: 0.9em;
}

.page-khuyen-mai__step-title {
  font-size: 1.25em;
  font-weight: 600;
  margin: 20px 15px 10px;
  color: var(--f8et-light-text);
}

.page-khuyen-mai__step-description {
  font-size: 0.9em;
  margin: 0 15px 20px;
  flex-grow: 1;
  color: rgba(255, 255, 255, 0.85);
}

.page-khuyen-mai__step-card .page-khuyen-mai__btn {
  margin: 0 15px;
  text-align: center;
}

.page-khuyen-mai__faq-list {
  margin-top: 30px;
}

.page-khuyen-mai__faq-item {
  background-color: var(--f8et-secondary-color);
  border: 1px solid var(--f8et-border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.1em;
  font-weight: 600;
  cursor: pointer;
  color: var(--f8et-dark-text);
  list-style: none;
  user-select: none;
}

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

.page-khuyen-mai__faq-qtext {
  flex-grow: 1;
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  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: 0 25px 20px;
  font-size: 0.95em;
  color: var(--f8et-dark-text);
}

.page-khuyen-mai__faq-answer p {
  margin-bottom: 0;
}

.page-khuyen-mai__faq-more-btn {
  display: block;
  margin: 40px auto 0;
  text-align: center;
  width: fit-content;
}

.page-khuyen-mai__conclusion-cta {
  margin-top: 30px;
}

/* --- Responsive Styles --- */

/* Tablet and Mobile */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-content {
    padding: 30px 20px;
  }

  .page-khuyen-mai__main-title {
    font-size: 2.5em;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1em;
  }

  .page-khuyen-mai__section {
    padding: 40px 0;
  }

  .page-khuyen-mai__section-title {
    font-size: 2em;
    margin-bottom: 30px;
  }

  .page-khuyen-mai__sub-title {
    font-size: 1.4em;
  }

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__steps-grid {
    gap: 20px;
  }

  .page-khuyen-mai__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
  }
}

/* Mobile specific styles */
@media (max-width: 768px) {
  /* 1. Top Section (Hero) & CTA */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Small top padding, relies on body padding-top */
  }

  .page-khuyen-mai__hero-content {
    padding: 25px 15px;
  }

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

  .page-khuyen-mai__hero-description {
    font-size: 0.95em;
    margin-bottom: 25px;
  }

  .page-khuyen-mai__cta-buttons {
    flex-direction: column; /* Stack buttons vertically */
    gap: 10px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 0 15px;
  }

  /* 2. Single Column Content Wrappers */
  .page-khuyen-mai__article-wrap {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__section {
    padding: 30px 0;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.6em;
    margin-bottom: 25px;
  }

  .page-khuyen-mai__sub-title {
    font-size: 1.2em;
    margin-top: 25px;
    margin-bottom: 10px;
  }

  .page-khuyen-mai__paragraph,
  .page-khuyen-mai__list-item {
    font-size: 0.9em;
  }

  /* 3. General Images and Figures */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-khuyen-mai__promo-image,
  .page-khuyen-mai__step-image {
    height: 180px; /* Adjust image height for mobile */
  }

  .page-khuyen-mai__promo-grid,
  .page-khuyen-mai__steps-grid {
    grid-template-columns: 1fr; /* Single column layout */
    gap: 25px;
    margin-top: 30px;
  }

  .page-khuyen-mai__promo-card,
  .page-khuyen-mai__step-card {
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  }

  /* 4. Buttons and Button Containers */
  .page-khuyen-mai__btn {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 10px 15px !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .page-khuyen-mai__promo-card .page-khuyen-mai__btn,
  .page-khuyen-mai__step-card .page-khuyen-mai__btn {
    margin: 0 15px 15px !important;
  }

  .page-khuyen-mai__faq-more-btn {
    width: 100% !important;
    max-width: 100% !important;
    margin: 30px auto 0 !important;
    padding: 10px 15px !important;
  }

  .page-khuyen-mai__conclusion-cta {
    padding: 0 15px;
  }

  /* 5. FAQ Block */
  .page-khuyen-mai__faq-question {
    padding: 15px 15px;
    font-size: 0.95em;
  }

  .page-khuyen-mai__faq-answer {
    padding: 0 15px 15px;
  }

  .page-khuyen-mai__faq-toggle {
    font-size: 1.3em;
  }
}