/* style/khuyen-mai.css */

:root {
  --primary-color: #113B7A;
  --secondary-color: #1D5FD1;
  --card-bg-color: #10233F;
  --text-main-color: #F3F8FF;
  --text-secondary-color: #AFC4E8;
  --border-color: #244D84;
  --glow-color: #4FA8FF;
  --gold-color: #F2C14E;
  --divider-color: #1B3357;
  --deep-navy-color: #08162B;
  --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
}

.page-khuyen-mai {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main-color); /* Default text color for dark body background */
  background-color: var(--card-bg); /* Assuming body background from shared.css is dark */
}

.page-khuyen-mai__hero-carousel-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  padding-top: 10px; /* Small top padding, body handles header offset */
  margin-bottom: 40px;
  background-color: var(--deep-navy-color);
}

.page-khuyen-mai__hero-slider {
  position: relative;
  width: 100%;
  height: 600px; /* Adjust height as needed */
}

.page-khuyen-mai__hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.page-khuyen-mai__hero-slide.is-active {
  opacity: 1;
}

.page-khuyen-mai__hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-width: 200px;
  min-height: 200px;
}

.page-khuyen-mai__hero-slider-prev,
.page-khuyen-mai__hero-slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  font-size: 24px;
  z-index: 10;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.page-khuyen-mai__hero-slider-prev:hover,
.page-khuyen-mai__hero-slider-next:hover {
  background-color: rgba(0, 0, 0, 0.7);
}

.page-khuyen-mai__hero-slider-prev {
  left: 20px;
}

.page-khuyen-mai__hero-slider-next {
  right: 20px;
}

.page-khuyen-mai__hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 30px 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  text-align: center;
  color: var(--text-main-color);
  z-index: 5;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2em, 3vw, 2.5em);
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--gold-color);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.2;
}

.page-khuyen-mai__subtitle {
  font-size: 1.1em;
  margin-bottom: 25px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-secondary-color);
}

.page-khuyen-mai__btn-primary {
  display: inline-block;
  padding: 12px 30px;
  background: var(--button-gradient);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border: none;
  cursor: pointer;
}

.page-khuyen-mai__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai__guide-box {
  padding: 40px 20px 50px;
  background-color: var(--card-bg-color);
  border-radius: 15px;
  margin: 0 auto 40px;
  max-width: 1200px;
  border: 1px solid var(--border-color);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.page-khuyen-mai__guide-title {
  text-align: center;
  font-size: 2.2em;
  color: var(--gold-color);
  margin-bottom: 30px;
  font-weight: bold;
}

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

.page-khuyen-mai__guide-card {
  flex: 0 0 calc(20% - 12px); /* 5 cards per row, accounting for gap */
  max-width: calc(20% - 12px);
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-khuyen-mai__guide-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai__guide-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 250 / 350;
  object-fit: cover;
  display: block;
  min-width: 200px;
  min-height: 200px;
}

/* Specific padding for staggered effect */
.page-khuyen-mai__guide-card--pos-1 {
  padding-top: 50px;
}
.page-khuyen-mai__guide-card--pos-2 {
  padding-top: 25px;
}
.page-khuyen-mai__guide-card--pos-4 {
  padding-top: 25px;
}
.page-khuyen-mai__guide-card--pos-5 {
  padding-top: 50px;
}

.page-khuyen-mai__content-section {
  padding: 20px;
  margin-bottom: 40px;
}

.page-khuyen-mai__home-content-box {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px;
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 15px;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.4);
  height: 700px; /* Fixed height for desktop with scroll */
  overflow: hidden;
}

.page-khuyen-mai__home-content-inner {
  height: 100%;
  overflow-y: auto; /* Scrollable content for desktop */
  padding-right: 15px; /* Space for scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--secondary-color) var(--card-bg-color);
}

.page-khuyen-mai__home-content-inner::-webkit-scrollbar {
  width: 8px;
}

.page-khuyen-mai__home-content-inner::-webkit-scrollbar-track {
  background: var(--card-bg-color);
  border-radius: 10px;
}

.page-khuyen-mai__home-content-inner::-webkit-scrollbar-thumb {
  background-color: var(--secondary-color);
  border-radius: 10px;
  border: 2px solid var(--card-bg-color);
}

.page-khuyen-mai__section-title {
  font-size: 2em;
  color: var(--gold-color);
  margin-top: 30px;
  margin-bottom: 20px;
  font-weight: bold;
  border-bottom: 2px solid var(--divider-color);
  padding-bottom: 10px;
}

.page-khuyen-mai__sub-section-title {
  font-size: 1.5em;
  color: var(--secondary-color);
  margin-top: 25px;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-khuyen-mai p {
  margin-bottom: 15px;
  color: var(--text-secondary-color);
}

.page-khuyen-mai a {
  color: var(--glow-color);
  text-decoration: none;
}

.page-khuyen-mai a:hover {
  text-decoration: underline;
}

.page-khuyen-mai__guide-list,
.page-khuyen-mai__terms-list,
.page-khuyen-mai__benefits-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 20px;
}

.page-khuyen-mai__guide-list li,
.page-khuyen-mai__terms-list li,
.page-khuyen-mai__benefits-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  color: var(--text-secondary-color);
}

.page-khuyen-mai__guide-list li strong,
.page-khuyen-mai__terms-list li strong,
.page-khuyen-mai__benefits-list li strong {
  color: var(--text-main-color);
}

.page-khuyen-mai__guide-list li::before,
.page-khuyen-mai__terms-list li::before,
.page-khuyen-mai__benefits-list li::before {
  content: '•'; /* Bullet point */
  color: var(--gold-color);
  position: absolute;
  left: 0;
  font-size: 1.2em;
  line-height: 1;
}

.page-khuyen-mai__guide-list li::before {
  content: counter(item) '.';
  counter-increment: item;
  font-weight: bold;
  color: var(--gold-color);
  left: 0;
  width: 20px;
  text-align: right;
}

.page-khuyen-mai__guide-list {
  counter-reset: item;
}

.page-khuyen-mai__btn-center {
  display: block;
  margin: 30px auto;
  max-width: 300px;
}

.page-khuyen-mai__faq-question {
  font-size: 1.3em;
  color: var(--text-main-color);
  background-color: var(--deep-navy-color);
  padding: 15px 20px;
  margin-top: 20px;
  margin-bottom: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-khuyen-mai__faq-question:hover {
  background-color: var(--primary-color);
}

.page-khuyen-mai__faq-answer {
  padding: 15px 20px;
  background-color: rgba(16, 35, 63, 0.8);
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
  margin-top: 0;
  margin-bottom: 15px;
  color: var(--text-secondary-color);
  border-left: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.page-khuyen-mai__blog-section {
  padding: 40px 20px;
  background-color: var(--card-bg-color);
  margin-top: 40px;
  border-top: 1px solid var(--border-color);
}

.page-khuyen-mai__blog-title {
  text-align: center;
  font-size: 2.2em;
  color: var(--gold-color);
  margin-bottom: 40px;
  font-weight: bold;
}

.page-khuyen-mai__blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3 columns for desktop */
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.page-khuyen-mai__blog-card {
  background-color: var(--deep-navy-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-khuyen-mai__blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.page-khuyen-mai__blog-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.page-khuyen-mai__blog-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  min-width: 200px;
  min-height: 200px;
}

.page-khuyen-mai__blog-card-content {
  padding: 20px;
}

.page-khuyen-mai__blog-card-title {
  font-size: 1.4em;
  color: var(--text-main-color);
  margin-bottom: 10px;
  min-height: 70px; /* Ensure consistent height for titles */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-khuyen-mai__blog-card-meta {
  font-size: 0.9em;
  color: var(--text-secondary-color);
  margin-bottom: 15px;
}

.page-khuyen-mai__blog-card-excerpt {
  font-size: 1em;
  color: var(--text-secondary-color);
  margin-bottom: 15px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-khuyen-mai__blog-read-more {
  color: var(--glow-color);
  font-weight: bold;
  display: inline-block;
  margin-top: 10px;
}

.page-khuyen-mai__view-all-button-container {
  text-align: center;
  margin-top: 40px;
}

.page-khuyen-mai__btn-secondary {
  display: inline-block;
  padding: 12px 30px;
  background: transparent;
  color: var(--glow-color);
  border: 2px solid var(--glow-color);
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: var(--glow-color);
  color: var(--deep-navy-color);
}

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

.page-khuyen-mai__cta-button,
.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%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__cta-buttons,
.page-khuyen-mai__button-group,
.page-khuyen-mai__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-khuyen-mai__hero-slider {
    height: 500px;
  }

  .page-khuyen-mai__main-title {
    font-size: clamp(1.8em, 4vw, 2.2em);
  }

  .page-khuyen-mai__guide-card {
    flex: 0 0 calc(33.333% - 10px); /* 3 cards per row */
    max-width: calc(33.333% - 10px);
    padding-top: 0 !important; /* Reset staggered padding */
  }

  .page-khuyen-mai__blog-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 columns for tablet */
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__hero-carousel-section {
    padding-top: 10px !important;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__hero-slider {
    height: 300px;
  }

  .page-khuyen-mai__hero-slider-prev,
  .page-khuyen-mai__hero-slider-next {
    padding: 8px 12px;
    font-size: 20px;
  }

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

  .page-khuyen-mai__main-title {
    font-size: clamp(1.5em, 6vw, 2em);
    margin-bottom: 10px;
  }

  .page-khuyen-mai__subtitle {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__btn-primary {
    padding: 10px 20px;
    font-size: 0.9em;
  }

  .page-khuyen-mai__guide-box {
    padding: 20px 15px 30px;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__guide-title {
    font-size: 1.8em;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__guide-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr); /* Base for 2 or 3 cards */
    gap: 10px;
  }

  .page-khuyen-mai__guide-card {
    padding-top: 0 !important; /* Reset all staggered padding */
    flex: auto; /* Allow grid to manage sizing */
    max-width: 100%; /* Reset max-width from flex */
  }

  .page-khuyen-mai__guide-card--pos-1,
  .page-khuyen-mai__guide-card--pos-2 {
    grid-column: span 3; /* Top two cards span 3 columns each (2 per row) */
  }

  .page-khuyen-mai__guide-card--pos-3,
  .page-khuyen-mai__guide-card--pos-4,
  .page-khuyen-mai__guide-card--pos-5 {
    grid-column: span 2; /* Bottom three cards span 2 columns each (3 per row) */
  }

  .page-khuyen-mai__content-section {
    padding: 15px;
    margin-bottom: 20px;
  }

  .page-khuyen-mai__home-content-box {
    padding: 20px;
    height: auto; /* Auto height for mobile */
    overflow: visible; /* No scroll for mobile */
  }

  .page-khuyen-mai__home-content-inner {
    height: auto;
    overflow-y: visible; /* No scroll for mobile */
    padding-right: 0;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.6em;
    margin-top: 20px;
    margin-bottom: 15px;
  }

  .page-khuyen-mai__sub-section-title {
    font-size: 1.2em;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  .page-khuyen-mai__guide-list li,
  .page-khuyen-mai__terms-list li,
  .page-khuyen-mai__benefits-list li {
    padding-left: 20px;
  }

  .page-khuyen-mai__faq-question {
    font-size: 1.1em;
    padding: 12px 15px;
  }

  .page-khuyen-mai__faq-answer {
    padding: 12px 15px;
  }

  .page-khuyen-mai__blog-section {
    padding: 30px 15px;
    margin-top: 20px;
  }

  .page-khuyen-mai__blog-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-khuyen-mai__blog-grid {
    grid-template-columns: 1fr; /* 1 column for mobile */
    gap: 20px;
  }

  .page-khuyen-mai__blog-card-title {
    font-size: 1.2em;
    min-height: auto;
  }

  .page-khuyen-mai__blog-card-excerpt {
    -webkit-line-clamp: 2;
  }

  .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__hero-carousel-section,
  .page-khuyen-mai__guide-box,
  .page-khuyen-mai__content-section,
  .page-khuyen-mai__home-content-box,
  .page-khuyen-mai__blog-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-khuyen-mai__cta-button,
  .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;
  }

  .page-khuyen-mai__cta-buttons {
    display: flex;
    flex-direction: column; /* Mobile vertical stacking */
  }
}