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

/* style/download.css */
/* body đã padding-top: var(--header-offset)；trang này không được viết lại biến đó */

.page-download {
  color: var(--text-main); /* Default text color for the page, which is #F3F8FF on a dark body background */
  background-color: var(--color-deep-navy); /* Ensure consistency if section backgrounds are not full width */
}

.page-download__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* Hero Section */
.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column; /* Image on top, content below */
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  text-align: center;
  background-color: var(--color-deep-navy); /* Custom color */
  overflow: hidden;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 800px; /* Max width for the image itself */
  margin-bottom: 30px;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-download__hero-content {
  max-width: 900px;
  width: 100%; /* Ensure it takes full width within container */
  z-index: 1;
}

.page-download__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem); /* Responsive font size for H1 */
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main); /* Custom color #F3F8FF */
  margin-bottom: 20px;
}

.page-download__description {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text-secondary); /* Custom color #AFC4E8 */
  margin-bottom: 40px;
}

.page-download__cta-buttons {
  display: flex;
  flex-wrap: wrap; /* Allow wrapping on small screens */
  gap: 20px;
  justify-content: center;
}

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  min-width: 200px;
  box-sizing: border-box;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
}

.page-download__btn-primary {
  background: var(--button-gradient); /* Custom button gradient */
  color: var(--text-main); /* Custom color #F3F8FF */
  border: 2px solid transparent;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  opacity: 0.9;
}

.page-download__btn-secondary {
  background: transparent;
  color: var(--gold); /* Custom color #F2C14E */
  border: 2px solid var(--gold); /* Custom color #F2C14E */
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-download__btn-secondary:hover {
  background: var(--gold);
  color: var(--color-deep-navy); /* Text on gold should be dark */
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

/* General Section Styling */
.page-download__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text-main); /* Custom color #F3F8FF */
  text-align: center;
  margin-bottom: 50px;
}

.page-download__dark-section {
  background-color: var(--color-deep-navy); /* Custom color #08162B */
  padding: 80px 0;
  color: var(--text-main); /* Ensure light text on dark background */
}

.page-download__dark-section .page-download__section-title {
  color: var(--text-main);
}

/* Benefits Section */
.page-download__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-download__benefit-card {
  background-color: var(--card-bg); /* Custom color #10233F */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--border); /* Custom color #244D84 */
}

.page-download__benefit-icon {
  width: 200px; /* Min size */
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  display: block; /* Ensure it respects width/height */
}

.page-download__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main); /* Custom color #F3F8FF */
  margin-bottom: 15px;
}

.page-download__benefit-card p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary); /* Custom color #AFC4E8 */
}

/* Download Guide Section */
.page-download__download-guide {
  padding: 80px 0;
  background-color: #f8f9fa; /* Light background for contrast */
  color: #333333; /* Dark text on light background */
}

.page-download__download-guide .page-download__section-title {
  color: var(--color-primary); /* Dark title for light background */
}

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

.page-download__guide-card {
  background-color: #ffffff; /* White card on light background */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
  border: 1px solid #e0e0e0;
  color: #333333; /* Dark text for light background card */
}

.page-download__guide-card .page-download__card-title {
  color: var(--color-primary); /* Dark title for light background card */
  margin-bottom: 25px;
}

.page-download__qr-code {
  width: 250px;
  height: 250px;
  margin: 0 auto 25px auto;
  border: 5px solid #ffffff;
  border-radius: 5px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  display: block; /* Ensure it respects width/height */
}

.page-download__guide-card ol {
  text-align: left;
  margin-bottom: 30px;
  padding-left: 25px;
  list-style-type: decimal;
}

.page-download__guide-card ol li {
  margin-bottom: 10px;
  line-height: 1.6;
}

.page-download__btn-download {
  width: auto; /* Allow button to size based on content */
  max-width: 80%; /* But not too wide */
  margin: 0 auto;
}

/* Features Section */
.page-download__features-section {
  padding: 80px 0;
  background-color: var(--color-deep-navy); /* Custom color */
}

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

.page-download__feature-item {
  background-color: var(--card-bg); /* Custom color #10233F */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--border); /* Custom color #244D84 */
}

.page-download__feature-image {
  width: 100%;
  max-width: 600px; /* Ensure it doesn't get too big */
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  display: block; /* Ensure it respects width/height */
  margin-left: auto;
  margin-right: auto;
}

.page-download__feature-item p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary); /* Custom color #AFC4E8 */
}

/* FAQ Section */
.page-download__faq-section {
  padding: 80px 0;
  background-color: #f8f9fa; /* Light background for contrast */
  color: #333333; /* Dark text on light background */
}

.page-download__faq-section .page-download__section-title {
  color: var(--color-primary); /* Dark title for light background */
}

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

.page-download__faq-item {
  background-color: #ffffff; /* White card on light background */
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  border: 1px solid #e0e0e0;
  color: #333333; /* Dark text for light background card */
  overflow: hidden; /* For details tag transition */
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary); /* Dark text for question */
  cursor: pointer;
  background-color: #f0f0f0;
  border-bottom: 1px solid #e0e0e0;
}

.page-download__faq-question:hover {
  background-color: #e6e6e6;
}

.page-download__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  width: 20px;
  text-align: center;
}

.page-download__faq-item[open] .page-download__faq-question {
  border-bottom: 1px solid transparent; /* Remove border when open */
}

.page-download__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  line-height: 1.6;
  color: #555555; /* Slightly lighter dark text */
  background-color: #ffffff;
}

/* Call to Action Section */
.page-download__cta-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--color-deep-navy); /* Custom color */
}

.page-download__cta-content {
  max-width: 900px;
  margin: 0 auto;
}

/* Ensure text color on light backgrounds is dark */
.page-download__download-guide p,
.page-download__download-guide li,
.page-download__faq-section p,
.page-download__faq-section li {
  color: #333333;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-download__hero-image-wrapper {
    max-width: 700px;
  }
}

@media (max-width: 768px) {
  .page-download__container {
    padding: 0 15px;
  }

  .page-download__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important; /* Ensure small top padding */
  }

  .page-download__hero-image-wrapper {
    margin-bottom: 20px;
  }

  .page-download__main-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
    margin-bottom: 15px;
  }

  .page-download__description {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    min-width: unset;
    padding: 12px 20px;
    font-size: 1rem;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }
  
  .page-download__cta-buttons {
    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-download__section-title {
    font-size: clamp(1.8rem, 7vw, 2.2rem);
    margin-bottom: 30px;
  }

  .page-download__dark-section,
  .page-download__download-guide,
  .page-download__features-section,
  .page-download__faq-section,
  .page-download__cta-section {
    padding: 50px 0;
  }

  .page-download__benefit-icon {
    width: 150px;
    height: auto;
  }

  .page-download__qr-code {
    width: 200px;
    height: 200px;
  }

  .page-download__faq-question {
    font-size: 1.1rem;
    padding: 15px 20px;
  }

  .page-download__faq-answer {
    padding: 15px 20px;
  }
  
  /* Mobile image responsiveness */
  .page-download img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__hero-image-wrapper,
  .page-download__benefit-card,
  .page-download__guide-card,
  .page-download__feature-item,
  .page-download__faq-item,
  .page-download__cta-content {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
}

@media (max-width: 480px) {
  .page-download__main-title {
    font-size: clamp(1.8rem, 9vw, 2.2rem);
  }

  .page-download__section-title {
    font-size: clamp(1.6rem, 8vw, 2rem);
  }

  .page-download__card-title {
    font-size: 1.3rem;
  }
  
  .page-download__hero-image-wrapper,
  .page-download__benefit-card,
  .page-download__guide-card,
  .page-download__feature-item,
  .page-download__faq-item,
  .page-download__cta-content {
    padding-left: 10px;
    padding-right: 10px;
  }
}