/* style/khuyen-mai.css */

:root {
  --page-khuyen-mai-primary-color: #E53935;
  --page-khuyen-mai-secondary-color: #FF5A4F;
  --page-khuyen-mai-text-main: #333333;
  --page-khuyen-mai-card-bg: #FFFFFF;
  --page-khuyen-mai-background: #F5F7FA;
  --page-khuyen-mai-border-color: #E0E0E0;
}

.page-khuyen-mai {
  font-family: Arial, sans-serif;
  color: var(--page-khuyen-mai-text-main);
  background-color: var(--page-khuyen-mai-background);
}

.page-khuyen-mai__container {
  max-width: 1170px;
  margin: 0 auto;
  padding: 0 16px;
  box-sizing: border-box;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 60px;
  background-color: var(--page-khuyen-mai-card-bg);
}

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

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

.page-khuyen-mai__hero-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--page-khuyen-mai-primary-color);
  letter-spacing: -0.5px;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 30px;
  color: var(--page-khuyen-mai-text-main);
}

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

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

.page-khuyen-mai__hero-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  display: block;
}

/* General Section Styling */
.page-khuyen-mai__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--page-khuyen-mai-primary-color);
}

.page-khuyen-mai__section-title--light {
  color: #ffffff;
}

.page-khuyen-mai__section-description {
  font-size: 1.05rem;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  color: var(--page-khuyen-mai-text-main);
}

.page-khuyen-mai__section-description--light {
  color: #f0f0f0;
}

/* Intro Section */
.page-khuyen-mai__intro-section {
  padding: 80px 0;
  background-color: var(--page-khuyen-mai-background);
}

.page-khuyen-mai__icon-boxes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-top: 50px;
}

.page-khuyen-mai__icon-box {
  flex: 1 1 30%;
  min-width: 280px;
  text-align: center;
  padding: 25px;
  background-color: var(--page-khuyen-mai-card-bg);
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--page-khuyen-mai-border-color);
}

.page-khuyen-mai__icon-box-media {
  width: 240px;
  height: 240px;
  aspect-ratio: 1 / 1;
  margin: 0 auto 20px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--page-khuyen-mai-primary-color);
}

.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-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--page-khuyen-mai-primary-color);
}

.page-khuyen-mai__icon-box-text {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--page-khuyen-mai-text-main);
}

/* Promo Section */
.page-khuyen-mai__promo-section {
  padding: 80px 0;
  background: var(--page-khuyen-mai-primary-color); /* Dark background for this section */
  color: #ffffff; /* Light text for dark background */
}

.page-khuyen-mai__promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-khuyen-mai__promo-card {
  background-color: var(--page-khuyen-mai-card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--page-khuyen-mai-border-color);
}

.page-khuyen-mai__promo-image {
  width: 100%;
  height: 250px; /* Fixed height for promo images */
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  color: var(--page-khuyen-mai-text-main);
}

.page-khuyen-mai__promo-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--page-khuyen-mai-primary-color);
}

.page-khuyen-mai__promo-text {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-khuyen-mai__promo-meta {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 20px;
}

/* Guide Section */
.page-khuyen-mai__guide-section {
  padding: 80px 0;
  background-color: var(--page-khuyen-mai-background);
}

.page-khuyen-mai__guide-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__guide-list li {
  background-color: var(--page-khuyen-mai-card-bg);
  padding: 25px;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  font-size: 1.1rem;
  line-height: 1.6;
  border-left: 5px solid var(--page-khuyen-mai-secondary-color);
  color: var(--page-khuyen-mai-text-main);
}

.page-khuyen-mai__guide-list li strong {
  color: var(--page-khuyen-mai-primary-color);
}

.page-khuyen-mai__guide-cta {
  text-align: center;
  margin-top: 40px;
}

/* Terms Section */
.page-khuyen-mai__terms-section {
  padding: 80px 0;
  background-color: var(--page-khuyen-mai-card-bg);
  border-top: 1px solid var(--page-khuyen-mai-border-color);
}

.page-khuyen-mai__terms-list {
  list-style: disc;
  padding-left: 20px;
  margin-top: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--page-khuyen-mai-text-main);
}

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

.page-khuyen-mai__terms-cta {
  text-align: center;
  margin-top: 40px;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: 80px 0;
  background-color: var(--page-khuyen-mai-background);
}

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

.page-khuyen-mai__faq-item {
  background-color: var(--page-khuyen-mai-card-bg);
  border: 1px solid var(--page-khuyen-mai-border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--page-khuyen-mai-text-main);
}

.page-khuyen-mai__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  color: var(--page-khuyen-mai-primary-color);
}

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

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

.page-khuyen-mai__faq-toggle {
  font-size: 1.8rem;
  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: 1rem;
  line-height: 1.6;
  color: var(--page-khuyen-mai-text-main);
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  transition: all 0.3s ease;
  text-align: center;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, var(--page-khuyen-mai-secondary-color) 0%, var(--page-khuyen-mai-primary-color) 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(229, 57, 53, 0.3);
}

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

.page-khuyen-mai__btn-secondary {
  background-color: var(--page-khuyen-mai-card-bg);
  color: var(--page-khuyen-mai-primary-color);
  border: 2px solid var(--page-khuyen-mai-primary-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-content-wrapper {
    flex-direction: column;
    text-align: center;
  }

  .page-khuyen-mai__hero-text-content {
    text-align: center;
  }

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

  .page-khuyen-mai__hero-image-wrapper {
    order: -1; /* Image above text on smaller screens */
  }

  .page-khuyen-mai__icon-boxes {
    flex-direction: column;
    align-items: center;
  }

  .page-khuyen-mai__icon-box {
    flex: 0 0 80%;
    max-width: 400px;
  }

  .page-khuyen-mai__promo-image {
    height: 200px;
  }
}

@media (max-width: 768px) {
  /* HERO Dual Column */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }

  .page-khuyen-mai__hero-content-wrapper {
    padding: 20px 15px;
    gap: 25px;
  }

  .page-khuyen-mai__hero-title {
    font-size: 2rem;
  }

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

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
  }

  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    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;
  }

  /* Module 1 Three Column Round Image */
  .page-khuyen-mai__icon-box {
    flex: 0 0 100%;
    width: 100%;
    max-width: 100%;
    padding: 20px 15px;
    box-sizing: border-box;
  }

  .page-khuyen-mai__icon-box-media {
    width: 200px; /* Maintain square aspect ratio */
    height: 200px;
    margin-bottom: 15px;
    border: 3px solid var(--page-khuyen-mai-primary-color);
  }

  /* Promo / Guide / Terms / FAQ section layout */
  .page-khuyen-mai__intro-section,
  .page-khuyen-mai__promo-section,
  .page-khuyen-mai__guide-section,
  .page-khuyen-mai__terms-section,
  .page-khuyen-mai__faq-section {
    padding: 50px 0;
  }

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

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

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

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

  .page-khuyen-mai__promo-card {
    width: 100%;
  }

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

  .page-khuyen-mai__promo-title {
    font-size: 1.4rem;
  }

  .page-khuyen-mai__promo-text {
    font-size: 0.95rem;
  }

  .page-khuyen-mai__guide-list li {
    font-size: 1rem;
    padding: 20px;
    margin-bottom: 10px;
  }

  .page-khuyen-mai__terms-list {
    font-size: 1rem;
    padding-left: 20px;
  }

  .page-khuyen-mai__faq-item summary {
    font-size: 1.05rem;
    padding: 15px 20px;
  }

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

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

  .page-khuyen-mai__section,
  .page-khuyen-mai__card,
  .page-khuyen-mai__container,
  .page-khuyen-mai__icon-box,
  .page-khuyen-mai__promo-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    /* Ensure content padding for mobile */
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-khuyen-mai__promo-card {
    padding-left: 0;
    padding-right: 0;
  }

  .page-khuyen-mai__promo-content {
    padding-left: 15px;
    padding-right: 15px;
  }
}