/* style/khuyen-mai.css */

:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --background-dark: #0D0E12;
  --card-background: #17191F;
  --text-light: #FFF3E6;
  --border-color: #A84F0C;
  --button-gradient: linear-gradient(180deg, #FFA53A 0%, #D96800 100%);
}

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

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-khuyen-mai__section-title {
  font-size: 2.5rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

.page-khuyen-mai__section-description {
  font-size: 1.1rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 60px;
  background-color: var(--background-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 600px;
}

.page-khuyen-mai__hero-content-wrapper {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 15px;
}

.page-khuyen-mai__hero-text-block {
  flex: 1 1 500px; /* Allows text to grow but has a base width */
  max-width: 600px;
  text-align: left;
}

.page-khuyen-mai__hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--primary-color);
  margin-bottom: 20px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.05em;
}

.page-khuyen-mai__hero-description {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 30px;
  line-height: 1.7;
}

.page-khuyen-mai__hero-cta-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.page-khuyen-mai__hero-image-block {
  flex: 1 1 400px; /* Allows image to grow but has a base width */
  max-width: 600px;
  text-align: center;
}

.page-khuyen-mai__hero-image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__btn-primary {
  background: var(--button-gradient);
  color: var(--text-light);
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(255, 140, 26, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 140, 26, 0.6);
}

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

.page-khuyen-mai__btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--background-dark);
  transform: translateY(-3px);
}

.page-khuyen-mai__btn-link {
  display: inline-block;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: bold;
  margin-top: 15px;
  transition: color 0.3s ease;
}

.page-khuyen-mai__btn-link:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* Promo Grid Section */
.page-khuyen-mai__promo-grid-section {
  padding: 60px 0;
  background-color: var(--background-dark);
}

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

.page-khuyen-mai__promo-card {
  background-color: var(--card-background);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-khuyen-mai__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-khuyen-mai__promo-card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card-content {
  padding: 25px;
  color: var(--text-light);
}

.page-khuyen-mai__promo-card-title {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-weight: bold;
}

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

/* How-To Claim Section */
.page-khuyen-mai__how-to-claim-section {
  padding: 60px 0;
  background-color: var(--background-dark);
}

.page-khuyen-mai__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-khuyen-mai__step-item {
  background-color: var(--card-background);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-color);
}

.page-khuyen-mai__step-icon {
  width: 60px;
  height: 60px;
  background: var(--button-gradient);
  color: var(--text-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: bold;
  margin: 0 auto 20px;
  box-shadow: 0 2px 10px rgba(255, 140, 26, 0.3);
}

.page-khuyen-mai__step-title {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-weight: bold;
}

.page-khuyen-mai__step-text {
  font-size: 1rem;
  color: var(--text-light);
}

.page-khuyen-mai__center-cta {
  text-align: center;
  margin-top: 50px;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: 60px 0;
  background-color: var(--background-dark);
}

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

.page-khuyen-mai__faq-item {
  background-color: var(--card-background);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--primary-color);
  background-color: var(--card-background);
  border-bottom: 1px solid transparent; /* default */
  list-style: none; /* For <summary> */
}

.page-khuyen-mai__faq-item[open] > .page-khuyen-mai__faq-question {
  border-bottom: 1px solid var(--border-color);
  color: var(--secondary-color);
}

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

.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;
  color: var(--text-light);
  line-height: 1.6;
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-content-wrapper {
    gap: 30px;
    padding: 30px 15px;
  }

  .page-khuyen-mai__hero-title {
    font-size: clamp(2.2rem, 4.5vw, 3rem);
  }

  .page-khuyen-mai__section-title {
    font-size: 2.2rem;
  }

  .page-khuyen-mai__promo-card-image {
    height: 220px;
  }

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

@media (max-width: 768px) {
  /* General mobile spacing and text */
  .page-khuyen-mai {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-khuyen-mai__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-khuyen-mai__section-title {
    font-size: 2rem !important;
    margin-bottom: 25px !important;
  }

  .page-khuyen-mai__section-description {
    font-size: 1rem !important;
    margin-bottom: 30px !important;
  }

  /* HERO Section */
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Ensure small top padding */
    padding-bottom: 40px !important;
    min-height: auto !important;
  }

  .page-khuyen-mai__hero-content-wrapper {
    flex-direction: column; /* Stack vertically */
    gap: 30px !important;
    padding: 20px 15px !important;
  }

  .page-khuyen-mai__hero-text-block {
    text-align: center !important;
    max-width: 100% !important;
    order: 2; /* Text block after image */
  }

  .page-khuyen-mai__hero-image-block {
    order: 1; /* Image block first */
    max-width: 100% !important;
  }

  .page-khuyen-mai__hero-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem) !important;
    margin-bottom: 15px !important;
  }

  .page-khuyen-mai__hero-description {
    font-size: 1rem !important;
    margin-bottom: 25px !important;
  }

  .page-khuyen-mai__hero-cta-buttons {
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 15px !important;
    width: 100% !important;
  }

  .page-khuyen-mai__btn-primary,
  .page-khuyen-mai__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    font-size: 1rem !important;
    padding: 12px 20px !important;
  }

  /* Promo Grid Section */
  .page-khuyen-mai__promo-grid-section {
    padding: 40px 0 !important;
  }

  .page-khuyen-mai__promo-grid {
    grid-template-columns: 1fr !important; /* Single column */
    gap: 25px !important;
  }

  .page-khuyen-mai__promo-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

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

  .page-khuyen-mai__promo-card-content {
    padding: 20px !important;
  }

  .page-khuyen-mai__promo-card-title {
    font-size: 1.3rem !important;
  }

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

  /* How-To Claim Section */
  .page-khuyen-mai__how-to-claim-section {
    padding: 40px 0 !important;
  }

  .page-khuyen-mai__steps-grid {
    grid-template-columns: 1fr !important; /* Single column */
    gap: 25px !important;
  }

  .page-khuyen-mai__step-item {
    padding: 25px !important;
  }

  .page-khuyen-mai__step-icon {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.8rem !important;
    margin-bottom: 15px !important;
  }

  .page-khuyen-mai__step-title {
    font-size: 1.2rem !important;
  }

  .page-khuyen-mai__step-text {
    font-size: 0.95rem !important;
  }

  .page-khuyen-mai__center-cta {
    margin-top: 40px !important;
  }

  /* FAQ Section */
  .page-khuyen-mai__faq-section {
    padding: 40px 0 !important;
  }

  .page-khuyen-mai__faq-list {
    max-width: 100% !important;
  }

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

  .page-khuyen-mai__faq-toggle {
    font-size: 1.5rem !important;
  }

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

  /* Universal Image and Container Mobile Styles */
  .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__promo-grid,
  .page-khuyen-mai__steps-grid,
  .page-khuyen-mai__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}