.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-main, #FFF3E6);
  background-color: var(--color-background, #0D0E12);
}

.page-index__section {
  padding: 20px 0;
  text-align: center;
}

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

.page-index__section-title.tieudevip {
  font-size: 2.2em;
  font-weight: bold;
  color: #3477c9; /* Custom blue from demo, or #FF8C1A */
  margin-bottom: 30px;
  padding-bottom: 10px;
  position: relative;
  display: inline-block;
  text-transform: uppercase;
}

.page-index__section-title.tieudevip::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: #3477c9; /* Custom blue from demo, or #FF8C1A */
  border-radius: 2px;
}

/* Hero Carousel Section */
.page-index__hero-carousel-section {
  padding-top: 10px; /* Small top padding, relies on body padding-top for header offset */
  padding-bottom: 20px;
  overflow: hidden;
}

.page-index__hero-slider {
  position: relative;
  width: 100%;
  max-width: 1020px; /* Max width for carousel images */
  margin: 0 auto;
  overflow: hidden;
  border-radius: 8px;
}

.page-index__hero-slide {
  display: none;
  width: 100%;
  transition: opacity 0.5s ease-in-out;
}

.page-index__hero-slide.is-active {
  display: block;
  opacity: 1;
}

.page-index__hero-slide img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-index__hero-slider-prev,
.page-index__hero-slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  z-index: 10;
  font-size: 1.5em;
  border-radius: 4px;
}

.page-index__hero-slider-prev {
  left: 10px;
}

.page-index__hero-slider-next {
  right: 10px;
}

.page-index__hero-slider-prev::before { content: '‹'; }
.page-index__hero-slider-next::before { content: '›'; }

.page-index__hero-slider-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.page-index__hero-slider-dots .dot {
  width: 10px;
  height: 10px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
}

.page-index__hero-slider-dots .dot.is-active {
  background-color: #fff;
}

/* Guide Section */
.page-index__guide-section {
  padding: 40px 0;
  background-color: var(--color-background, #0D0E12);
}

.page-index__guide-box {
  max-width: 100%; /* Ensure it takes full width of its content area */
  margin: 0 auto;
  padding: 16px 20px 24px;
  background: #f5e6d3; /* Light beige background as per demo */
  border-radius: 4px;
  box-sizing: border-box;
  color: #333333; /* Dark text for light background */
}

.page-index__guide-box .page-index__section-title.tieudevip {
  color: #3477c9;
  margin-bottom: 25px;
}

.page-index__guide-box .page-index__section-title.tieudevip::after {
  background-color: #3477c9;
}

.page-index__guide-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start; /* Align items to the start for staggered effect */
  justify-content: center;
  gap: 8px; /* Small gap between cards */
  padding: 0 10px; /* Some horizontal padding for the grid */
}

.page-index__guide-card {
  display: block;
  flex: 0 0 calc(20% - 8px); /* 5 cards per row, accounting for gap */
  max-width: calc(20% - 8px);
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__guide-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.page-index__guide-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 250 / 350; /* Fixed aspect ratio for vertical images */
  object-fit: contain; /* Ensure image fits without cropping */
  display: block;
  border-radius: 4px;
}

/* PC staggered layout */
.page-index__guide-card--pos-1,
.page-index__guide-card--pos-5 { padding-top: 50px; }
.page-index__guide-card--pos-2,
.page-index__guide-card--pos-4 { padding-top: 25px; }
.page-index__guide-card--pos-3 { padding-top: 0; }

/* Home Content Section */
.page-index__home-content-section {
  padding: 40px 0;
  background-color: var(--color-background, #0D0E12);
}

.page-index__home-content-row {
  display: flex;
  justify-content: center;
}

.page-index__home-content-box {
  max-width: 91%; /* Max width for the blue box */
  width: 100%;
  margin: 0 auto;
  padding: 10px 16px;
  border: 5px solid #3477c9; /* Blue border as per demo */
  border-radius: 15px;
  box-shadow: 0 0 20px #3477c9; /* Blue glow shadow */
  height: 700px; /* Fixed height for desktop */
  text-align: left;
  box-sizing: border-box;
  background-color: var(--color-card-bg, #17191F); /* Dark background for content box */
  color: var(--color-text-main, #FFF3E6); /* Light text for dark background */
}

.page-index__home-content-inner {
  height: 100%;
  overflow-y: auto; /* Enable vertical scrolling */
  overflow-x: hidden;
  padding-right: 8px; /* Space for scrollbar */
  box-sizing: border-box;
}

.page-index__home-content-title {
  font-size: 2.5em;
  font-weight: bold;
  color: var(--color-primary, #FF8C1A); /* Brand primary color for H1 */
  margin-bottom: 20px;
  text-align: center;
}

.page-index__home-content-box h2 {
  font-size: 1.8em;
  color: var(--color-primary, #FF8C1A);
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-index__home-content-box h3 {
  font-size: 1.4em;
  color: var(--color-secondary, #FFA53A);
  margin-top: 25px;
  margin-bottom: 10px;
}

.page-index__home-content-box p {
  margin-bottom: 15px;
  line-height: 1.8;
}

.page-index__home-content-box ul {
  list-style-type: disc;
  margin-left: 20px;
  margin-bottom: 15px;
}

.page-index__home-content-box ul li {
  margin-bottom: 5px;
}

.page-index__wp-caption {
  margin: 20px auto;
  max-width: 100%;
  text-align: center;
}

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
}

.page-index__wp-caption figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: var(--color-text-main, #FFF3E6);
  margin-top: 10px;
}

/* Blog Section */
.page-index__blog-section {
  padding: 40px 0;
  background-color: var(--color-background, #0D0E12);
}

.page-index__blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3 columns for desktop */
  gap: 20px;
  margin-top: 30px;
}

.page-index__blog-card {
  background-color: var(--color-card-bg, #17191F);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

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

.page-index__blog-media {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
}

.page-index__blog-media img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px 10px 0 0;
}

.page-index__blog-date {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: var(--color-primary, #FF8C1A);
  color: #fff;
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 0.8em;
  font-weight: bold;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
}

.page-index__blog-date span:first-child { font-size: 1.2em; }
.page-index__blog-date span:last-child { font-size: 0.8em; text-transform: uppercase; }

.page-index__blog-title {
  font-size: 1.2em;
  font-weight: bold;
  color: var(--color-secondary, #FFA53A);
  margin: 15px;
  min-height: 48px; /* Ensure consistent height for titles */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-index__blog-excerpt {
  font-size: 0.9em;
  color: var(--color-text-main, #FFF3E6);
  margin: 0 15px 15px;
  min-height: 40px; /* Consistent height for excerpts */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-index__view-all-button-container {
  margin-top: 30px;
  text-align: center;
}

/* App Download Section */
.page-index__app-download-section {
  padding: 50px 0;
  background-color: var(--color-card-bg, #17191F);
}

.page-index__app-download-box {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px;
  background: linear-gradient(180deg, #17191F 0%, #0D0E12 100%);
  border-radius: 15px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--color-border, #A84F0C);
}

.page-index__app-download-title {
  font-size: 2.5em;
  color: var(--color-primary, #FF8C1A);
  margin-bottom: 20px;
}

.page-index__app-download-description {
  font-size: 1.1em;
  color: var(--color-text-main, #FFF3E6);
  margin-bottom: 30px;
}

.page-index__app-download-btn {
  padding: 15px 30px;
  font-size: 1.2em;
  border-radius: 8px;
}

/* General Button Styles */
.page-index__btn-primary {
  display: inline-block;
  background: linear-gradient(180deg, #FFA53A 0%, #D96800 100%);
  color: #ffffff;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: none;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-index__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(255, 140, 26, 0.4);
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-index__section-title.tieudevip {
    font-size: 2em;
  }
  .page-index__guide-card {
    flex: 0 0 calc(33.333% - 8px); /* 3 cards per row */
    max-width: calc(33.333% - 8px);
  }
  .page-index__blog-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 columns */
  }
  .page-index__home-content-box {
    height: 600px; /* Slightly reduce height for smaller desktops/tablets */
  }
}

@media (max-width: 768px) {
  .page-index {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-index__section-content,
  .page-index__section,
  .page-index__card,
  .page-index__container,
  .page-index__app-download-box {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  /* Hero Carousel Section - Mobile */
  .page-index__hero-carousel-section {
    padding-top: 10px !important;
  }
  .page-index__hero-slider-prev,
  .page-index__hero-slider-next {
    padding: 8px 12px;
    font-size: 1.2em;
  }
  .page-index__hero-slider-dots {
    bottom: 5px;
    gap: 5px;
  }
  .page-index__hero-slider-dots .dot {
    width: 8px;
    height: 8px;
  }

  /* Guide Section - Mobile */
  .page-index__guide-box {
    padding: 15px;
  }
  .page-index__guide-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr); /* Base grid for 2-then-3 layout */
    gap: 8px;
    padding: 0;
  }
  .page-index__guide-card {
    flex: none;
    max-width: none;
    padding-top: 0 !important; /* Reset staggered padding */
  }
  .page-index__guide-card--pos-1,
  .page-index__guide-card--pos-2 {
    grid-column: span 3; /* First two cards take 3 columns each (50% width) */
  }
  .page-index__guide-card--pos-3,
  .page-index__guide-card--pos-4,
  .page-index__guide-card--pos-5 {
    grid-column: span 2; /* Next three cards take 2 columns each (33.33% width) */
  }

  /* Home Content Section - Mobile */
  .page-index__home-content-box {
    max-width: 100%;
    height: auto; /* Auto height for mobile */
    padding: 20px 15px;
    border-width: 3px; /* Slightly thinner border */
    box-shadow: 0 0 10px #3477c9; /* Reduce shadow */
  }
  .page-index__home-content-inner {
    height: auto; /* Auto height for mobile */
    overflow: visible; /* Show all content, no internal scroll */
    padding-right: 0;
  }
  .page-index__home-content-title {
    font-size: 1.8em;
  }
  .page-index__home-content-box h2 {
    font-size: 1.5em;
  }
  .page-index__home-content-box h3 {
    font-size: 1.2em;
  }

  /* Blog Section - Mobile */
  .page-index__blog-grid {
    grid-template-columns: 1fr; /* Single column for mobile */
    gap: 15px;
  }
  .page-index__blog-title {
    font-size: 1.1em;
    min-height: auto;
  }
  .page-index__blog-excerpt {
    font-size: 0.85em;
    min-height: auto;
  }

  /* General Button Styles - Mobile */
  .page-index__btn-primary,
  .page-index__app-download-btn,
  .page-index a[class*="button"],
  .page-index 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-index__view-all-button-container,
  .page-index__app-download-box {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px; /* Space between buttons if multiple */
  }
}