/* style/khuyen-mai.css */
.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: #333333;
  background-color: #F5F7FA;
}

.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Aligns with shared.css body padding */
  padding-bottom: 60px;
  background-color: #F5F7FA;
}

.page-khuyen-mai__hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 40px 20px;
  gap: 30px;
}

.page-khuyen-mai__hero-content {
  flex: 1 1 50%;
  max-width: 550px;
  color: #333333;
}

.page-khuyen-mai__hero-title {
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #E53935;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1em;
  line-height: 1.6;
  margin-bottom: 30px;
}

.page-khuyen-mai__hero-cta-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.page-khuyen-mai__hero-image {
  flex: 1 1 40%;
  text-align: center;
  min-width: 300px;
}

.page-khuyen-mai__hero-side-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  border: none;
}

.page-khuyen-mai__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background-color: #ffffff;
  color: #E53935;
  border: 2px solid #E53935;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #E53935;
  color: #ffffff;
  transform: translateY(-2px);
}

.page-khuyen-mai__content-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.page-khuyen-mai__section-title {
  text-align: center;
  font-weight: bold;
  margin-bottom: 20px;
  color: #E53935;
}

.page-khuyen-mai__section-description {
  text-align: center;
  font-size: 1.05em;
  line-height: 1.6;
  margin-bottom: 40px;
  color: #333333;
}

.page-khuyen-mai__intro-section {
  background-color: #F5F7FA;
  padding: 60px 0;
}

.page-khuyen-mai__icon-boxes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
}

.page-khuyen-mai__icon-box {
  flex: 1 1 30%;
  max-width: 350px;
  background-color: #ffffff;
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
  border: 1px solid #E0E0E0;
}

.page-khuyen-mai__icon-box:hover {
  transform: translateY(-8px);
}

.page-khuyen-mai__icon-box-media {
  width: 160px;
  height: 160px;
  aspect-ratio: 1/1;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #FF5A4F;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-khuyen-mai__icon-box-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.page-khuyen-mai__icon-box-title {
  font-weight: bold;
  font-size: 1.3em;
  margin-bottom: 15px;
  color: #E53935;
}

.page-khuyen-mai__icon-box-text {
  line-height: 1.6;
  color: #333333;
}

.page-khuyen-mai__promo-types-section {
  background-color: #ffffff;
  padding: 60px 0;
}

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

.page-khuyen-mai__promo-card {
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  border: 1px solid #E0E0E0;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-card-image {
  width: 100%;
  height: 220px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-card-title {
  font-weight: bold;
  font-size: 1.4em;
  margin-bottom: 15px;
  color: #E53935;
}

.page-khuyen-mai__promo-card-text {
  line-height: 1.6;
  color: #333333;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__promo-card-btn {
  margin-top: auto;
  width: 100%;
  text-align: center;
}

.page-khuyen-mai__how-to-claim-section {
  background-color: #F5F7FA;
  padding: 60px 0;
}

.page-khuyen-mai__steps-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.page-khuyen-mai__steps-content {
  flex: 1 1 55%;
  min-width: 300px;
}

.page-khuyen-mai__steps-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.page-khuyen-mai__step-item {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 20px 25px;
  margin-bottom: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border-left: 5px solid #E53935;
}

.page-khuyen-mai__step-title {
  font-weight: bold;
  font-size: 1.2em;
  margin-bottom: 10px;
  color: #E53935;
}

.page-khuyen-mai__step-text {
  line-height: 1.6;
  color: #333333;
}

.page-khuyen-mai__steps-btn {
  width: auto;
  padding: 14px 40px;
  margin-top: 20px;
}

.page-khuyen-mai__steps-image {
  flex: 1 1 35%;
  text-align: center;
  min-width: 280px;
}

.page-khuyen-mai__steps-side-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__terms-section {
  background-color: #ffffff;
  padding: 60px 0;
  text-align: center;
}

.page-khuyen-mai__terms-image {
  max-width: 800px;
  width: 100%;
  height: auto;
  margin-top: 40px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__faq-section {
  background-color: #F5F7FA;
  padding: 60px 0;
}

.page-khuyen-mai__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-khuyen-mai__faq-item {
  background-color: #ffffff;
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  border: 1px solid #E0E0E0;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-weight: bold;
  font-size: 1.15em;
  color: #333333;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-khuyen-mai__faq-qtext {
  flex-grow: 1;
  color: #E53935;
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: #FF5A4F;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
  content: '−';
}

.page-khuyen-mai__faq-answer {
  padding: 0 25px 20px;
  line-height: 1.6;
  color: #333333;
  font-size: 1em;
}

.page-khuyen-mai__cta-section {
  padding: 80px 20px;
  text-align: center;
}

.page-khuyen-mai__dark-section {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
}

.page-khuyen-mai__dark-section .page-khuyen-mai__section-title,
.page-khuyen-mai__dark-section .page-khuyen-mai__section-description {
  color: #ffffff;
}

.page-khuyen-mai__dark-section .page-khuyen-mai__btn-primary {
  background-color: #ffffff;
  color: #E53935;
  border: none;
}

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

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

/* Tablet and Mobile */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-container {
    padding: 30px 15px;
    flex-direction: column-reverse;
    text-align: center;
  }

  .page-khuyen-mai__hero-content {
    max-width: 100%;
    flex: none;
  }

  .page-khuyen-mai__hero-title {
    font-size: 2.2em;
  }

  .page-khuyen-mai__hero-image {
    flex: none;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__hero-cta-buttons {
    justify-content: center;
  }

  .page-khuyen-mai__icon-box {
    flex: 1 1 45%;
    max-width: 45%;
  }

  .page-khuyen-mai__promo-card-image {
    height: 180px;
  }

  .page-khuyen-mai__steps-grid {
    flex-direction: column;
  }

  .page-khuyen-mai__steps-content,
  .page-khuyen-mai__steps-image {
    flex: none;
    width: 100%;
  }

  .page-khuyen-mai__steps-btn {
    width: 100%;
  }
}

/* Mobile Specific Styles */
@media (max-width: 768px) {
  .page-khuyen-mai {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }

  .page-khuyen-mai__hero-container,
  .page-khuyen-mai__content-area {
    padding: 20px 15px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__hero-title {
    font-size: 1.8em;
  }

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

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .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__section-title {
    font-size: 1.6em;
    margin-bottom: 15px;
  }

  .page-khuyen-mai__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  /* Module 1: Three-column intro with circular images */
  .page-khuyen-mai__icon-boxes {
    flex-direction: column;
    gap: 20px;
  }

  .page-khuyen-mai__icon-box {
    max-width: 100%;
    flex: none;
  }

  .page-khuyen-mai__icon-box-media {
    width: 120px;
    height: 120px;
    border-width: 3px;
  }

  /* All other images */
  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block;
  }

  .page-khuyen-mai__promo-card-grid {
    grid-template-columns: 1fr;
  }

  .page-khuyen-mai__promo-card-image {
    height: 160px;
  }

  .page-khuyen-mai__promo-card-title {
    font-size: 1.2em;
  }

  .page-khuyen-mai__promo-card-text {
    font-size: 0.9em;
  }

  .page-khuyen-mai__step-item {
    padding: 15px 20px;
  }

  .page-khuyen-mai__step-title {
    font-size: 1.1em;
  }

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

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

  .page-khuyen-mai__faq-answer {
    padding: 0 20px 15px;
    font-size: 0.95em;
  }

  .page-khuyen-mai__cta-section {
    padding: 60px 15px;
  }
}