/* style/download.css */
/* body đã padding-top: var(--header-offset) từ shared.css, không thêm vào đây */

/* Custom Color Variables */
:root {
  --main-color: #11A84E;
  --aux-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-bg: #11271B;
  --bg-main: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;
}

/* --- Base Styles --- */
.page-download {
  font-family: 'Arial', sans-serif;
  color: var(--text-main); /* Sử dụng biến màu chính cho văn bản */
  background-color: var(--bg-main); /* Sử dụng biến màu nền chính */
}

.page-download__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px; /* Giữ padding ngang cho desktop */
}

.page-download__section-title {
  font-size: 2.5rem;
  color: var(--gold); /* Sử dụng màu vàng cho tiêu đề chính */
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

.page-download__section-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  line-height: 1.6;
}

/* --- Hero Section --- */
.page-download__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 60px;
  background-color: var(--bg-main);
}

.page-download__hero-image-wrapper {
  width: 100%;
  position: relative;
  overflow: hidden;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  min-width: 200px; /* Ensure minimum size */
  min-height: 200px; /* Ensure minimum size */
}

.page-download__hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 20px 15px;
  max-width: 900px;
  margin-top: -80px; /* Overlap slightly with image for visual flow */
  background-color: var(--bg-main);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-download__hero-title {
  font-size: clamp(2rem, 4vw, 3rem); /* Responsive H1 font size */
  color: var(--gold);
  margin-bottom: 15px;
  font-weight: 700;
  line-height: 1.2;
}

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

.page-download__download-buttons {
  display: flex;
  flex-wrap: wrap; /* Allow wrapping on small screens */
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

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

.page-download__btn-primary {
  background: var(--button-gradient);
  color: var(--text-main);
  border: none;
}

.page-download__btn-secondary {
  background-color: transparent;
  color: var(--gold);
  border: 2px solid var(--gold);
}

.page-download__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.page-download__btn-secondary:hover {
  background-color: var(--gold);
  color: var(--bg-main);
  transform: translateY(-2px);
}

.page-download__video-wrapper {
  width: 100%;
  max-width: 800px;
  margin: 40px auto 0 auto;
  background-color: #000;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
}

.page-download__video {
  width: 100%;
  height: auto;
  display: block;
  min-width: 200px; /* Ensure minimum size */
  min-height: 200px; /* Ensure minimum size */
}

/* --- Why Section --- */
.page-download__why-section {
  padding: 80px 0;
  background-color: var(--deep-green); /* Darker background for contrast */
  color: var(--text-main);
}

.page-download__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__benefit-card {
  background-color: var(--card-bg); /* Use card background color */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  border: 1px solid var(--border-color);
  color: var(--text-main); /* Ensure text color for card */
}

.page-download__benefit-card:hover {
  transform: translateY(-5px);
}

.page-download__benefit-icon {
  width: 100%;
  max-width: 250px; /* Ensure icons are not tiny, but illustrative */
  height: auto;
  margin-bottom: 20px;
  min-width: 200px; /* Enforce min image size */
  min-height: 200px; /* Enforce min image size */
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__benefit-title {
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-download__benefit-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --- Guide Section --- */
.page-download__guide-section {
  padding: 80px 0;
  background-color: var(--bg-main); /* Lighter background */
  color: var(--text-main);
}

.page-download__guide-subtitle {
  font-size: 2rem;
  color: var(--gold);
  text-align: center;
  margin-top: 60px;
  margin-bottom: 40px;
  font-weight: 700;
}

.page-download__guide-steps {
  margin-bottom: 60px;
}

.page-download__step-item {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
  gap: 30px;
}

.page-download__step-item--reverse {
  flex-direction: row-reverse;
}

.page-download__step-image {
  flex: 1;
  max-width: 50%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  min-width: 200px; /* Enforce min image size */
  min-height: 200px; /* Enforce min image size */
  object-fit: cover;
}

.page-download__step-content {
  flex: 1;
  max-width: 50%;
  padding: 20px;
}

.page-download__step-title {
  font-size: 1.6rem;
  color: var(--gold);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-download__step-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-download__cta-buttons--center {
  margin-top: 50px;
}

/* --- Features Section --- */
.page-download__features-section {
  padding: 80px 0;
  background-color: var(--deep-green); /* Darker background */
  color: var(--text-main);
}

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

.page-download__feature-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.page-download__feature-card:hover {
  transform: translateY(-5px);
}

.page-download__feature-image {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  min-width: 200px; /* Enforce min image size */
  min-height: 200px; /* Enforce min image size */
}

.page-download__feature-title {
  font-size: 1.4rem;
  color: var(--gold);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-download__feature-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --- Security Section --- */
.page-download__security-section {
  padding: 80px 0;
  background-color: var(--bg-main);
  color: var(--text-main);
}

.page-download__security-content {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 50px;
}

.page-download__security-text {
  flex: 1;
}

.page-download__security-subtitle {
  font-size: 1.8rem;
  color: var(--gold);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-download__security-paragraph {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 25px;
}

.page-download__security-image {
  flex: 1;
  max-width: 50%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  min-width: 200px; /* Enforce min image size */
  min-height: 200px; /* Enforce min image size */
  object-fit: cover;
}

/* --- FAQ Section --- */
.page-download__faq-section {
  padding: 80px 0;
  background-color: var(--deep-green);
  color: var(--text-main);
}

.page-download__faq-list {
  max-width: 800px;
  margin: 50px auto 0 auto;
}

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

.page-download__faq-item details {
  /* Reset default details styling */
  padding: 0;
  margin: 0;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  background-color: var(--card-bg);
  transition: background-color 0.3s ease;
  list-style: none; /* For details summary */
}

.page-download__faq-question::-webkit-details-marker {
  display: none;
}

.page-download__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.05); /* subtle hover for dark card */
}

.page-download__faq-toggle {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--gold);
  margin-left: 15px;
  line-height: 1;
}

.page-download__faq-answer {
  padding: 15px 25px 20px 25px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background-color: rgba(0, 0, 0, 0.15); /* Slightly different background for answer */
}

/* --- CTA Section --- */
.page-download__cta-section {
  padding: 80px 0;
  background-color: var(--bg-main);
  color: var(--text-main);
}

.page-download__cta-content {
  text-align: center;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-download__hero-content {
    margin-top: -60px;
  }
  .page-download__step-image,
  .page-download__step-content,
  .page-download__security-image,
  .page-download__security-text {
    max-width: 100%;
  }
}

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

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

  .page-download__hero-content {
    margin-top: -40px;
    padding: 15px;
  }

  .page-download__hero-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

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

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

  .page-download__btn {
    width: 100%;
    max-width: 100% !important; /* Force full width */
    padding: 12px 20px;
    font-size: 1rem;
  }

  .page-download__benefits-grid {
    grid-template-columns: 1fr;
  }

  .page-download__step-item {
    flex-direction: column;
    text-align: center;
  }

  .page-download__step-item--reverse {
    flex-direction: column; /* Reset reverse on mobile */
  }

  .page-download__step-image {
    max-width: 100%;
    margin-bottom: 20px;
  }

  .page-download__step-content {
    max-width: 100%;
    padding: 0;
  }

  .page-download__guide-subtitle {
    font-size: 1.8rem;
  }

  .page-download__features-grid {
    grid-template-columns: 1fr;
  }

  .page-download__security-content {
    flex-direction: column;
    text-align: center;
  }

  .page-download__security-image {
    max-width: 100%;
    margin-top: 30px;
  }
  
  /* Mobile image and video responsive adaptation */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    min-width: 200px !important; /* Ensure minimum size */
    min-height: 200px !important; /* Ensure minimum size */
  }
  
  .page-download video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    min-width: 200px !important; /* Ensure minimum size */
    min-height: 200px !important; /* Ensure minimum size */
  }

  .page-download__section,
  .page-download__card,
  .page-download__container,
  .page-download__hero-section,
  .page-download__why-section,
  .page-download__guide-section,
  .page-download__features-section,
  .page-download__security-section,
  .page-download__faq-section,
  .page-download__cta-section,
  .page-download__video-wrapper,
  .page-download__video-container,
  .page-download__video-section,
  .page-download__download-buttons,
  .page-download__cta-buttons,
  .page-download__step-item,
  .page-download__security-content {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important; /* Ensure no horizontal scroll */
  }
  
  /* Remove padding from full-width sections, keep for containers */
  .page-download__hero-section,
  .page-download__why-section,
  .page-download__guide-section,
  .page-download__features-section,
  .page-download__security-section,
  .page-download__faq-section,
  .page-download__cta-section {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }
  
  /* Re-apply container padding */
  .page-download__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
  
  /* Small top padding for hero section on mobile, as body handles header offset */
  .page-download__hero-section {
    padding-top: 10px !important; /* Only a small top padding */
  }

  .page-download__section-description {
    margin-bottom: 25px;
  }

  .page-download__hero-content {
    margin-top: -20px;
  }

  .page-download__hero-title {
    font-size: clamp(1.5rem, 7vw, 2.2rem);
  }

  .page-download__hero-description {
    font-size: 0.95rem;
  }

  .page-download__guide-subtitle {
    font-size: 1.5rem;
  }

  .page-download__step-title {
    font-size: 1.3rem;
  }

  .page-download__security-subtitle {
    font-size: 1.5rem;
  }

  .page-download__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-download__faq-answer {
    padding: 10px 20px 15px 20px;
  }
}