/* style/download.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không được thêm lại */

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

.page-download {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* Sử dụng biến màu chính cho văn bản */
  background-color: var(--bg-color); /* Sử dụng biến màu nền chính */
}

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

.page-download__section-title {
  font-size: 2.5em;
  color: var(--text-main);
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

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

/* Hero Section */
.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* body đã có padding-top, hero chỉ cần 10px */
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-color) 0%, var(--card-bg) 100%); /* Deep Green to Card BG */
  min-height: 600px;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  z-index: 1;
}

.page-download__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Đảm bảo hình ảnh phủ kín khu vực */
  opacity: 0.3; /* Làm mờ hình ảnh nền để văn bản dễ đọc */
  display: block;
}

.page-download__hero-link {
  display: block; /* Để link bao trọn ảnh */
  width: 100%;
  height: 100%;
}

.page-download__hero-content-wrapper {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 20px;
  box-sizing: border-box;
}

/* H1 font-size rule: no fixed large values, use clamp if needed, otherwise rely on font-weight, line-height */
.page-download__hero-title {
  color: var(--text-main);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-size: clamp(2.2em, 5vw, 3.5em); /* Sử dụng clamp cho kích thước linh hoạt */
}

.page-download__hero-description {
  color: var(--text-secondary);
  font-size: 1.2em;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-download__hero-cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Buttons */
.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  white-space: nowrap;
  box-sizing: border-box;
  max-width: 100%;
  width: auto;
}

.page-download__btn-primary {
  background: var(--button-gradient);
  color: var(--text-main); /* Text Main is #F2FFF6, which contrasts well */
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%); /* Reverse gradient for hover */
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.page-download__btn-secondary {
  background: transparent;
  color: var(--gold); /* Gold color for secondary button text */
  border: 2px solid var(--gold);
}

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

.page-download__btn-large {
  padding: 18px 40px;
  font-size: 1.2em;
}

/* Benefits Section */
.page-download__benefits-section {
  padding: 80px 0;
  background-color: var(--bg-color);
}

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

.page-download__benefit-card {
  background-color: var(--card-bg); /* Card BG is #11271B, text is #F2FFF6 */
  padding: 30px;
  border-radius: 12px;
  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);
}

.page-download__benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-download__benefit-icon {
  width: 100%;
  height: auto;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  min-width: 200px; /* Enforce min size */
  min-height: 200px; /* Enforce min size */
  max-width: 100%; /* Ensure responsiveness */
  object-fit: contain; /* Ensure icon is fully visible */
}

.page-download__benefit-title {
  font-size: 1.5em;
  color: var(--text-main);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-download__benefit-text {
  color: var(--text-secondary);
  font-size: 1em;
}

/* Installation Guide Section */
.page-download__installation-section {
  padding: 80px 0;
  background-color: var(--deep-green); /* Darker green background */
}

.page-download__guide-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 50px;
}

.page-download__guide-block {
  background-color: var(--card-bg);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
}

.page-download__guide-title {
  font-size: 2em;
  color: var(--gold); /* Gold for titles */
  margin-bottom: 20px;
  text-align: center;
}

.page-download__guide-intro {
  color: var(--text-secondary);
  font-size: 1.1em;
  margin-bottom: 30px;
  text-align: center;
}

.page-download__guide-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.page-download__guide-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
}

.page-download__step-number {
  background: var(--glow); /* Glow color for step numbers */
  color: var(--bg-color); /* Dark text on glow background */
  border-radius: 50%;
  width: 35px;
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
  margin-right: 15px;
  font-size: 1.1em;
}

.page-download__step-text {
  color: var(--text-main);
  font-size: 1em;
}

.page-download__guide-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-top: 30px;
  margin-bottom: 30px;
  display: block;
  min-width: 200px; /* Enforce min size */
  min-height: 200px; /* Enforce min size */
  max-width: 100%; /* Ensure responsiveness */
}

.page-download__guide-cta {
  width: 100%;
  text-align: center;
  margin-top: 20px;
  padding: 15px 20px;
}

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

.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);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-download__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

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

.page-download__feature-text {
  color: var(--text-secondary);
  font-size: 0.95em;
}

.page-download__features-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin-top: 60px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
  min-width: 200px; /* Enforce min size */
  min-height: 200px; /* Enforce min size */
  max-width: 100%; /* Ensure responsiveness */
}

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

.page-download__security-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-top: 50px;
}

.page-download__security-text {
  color: var(--text-main);
}

.page-download__security-subtitle {
  font-size: 1.6em;
  color: var(--gold);
  margin-top: 25px;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-download__security-paragraph {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1em;
}

.page-download__security-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  display: block;
  min-width: 200px; /* Enforce min size */
  min-height: 200px; /* Enforce min size */
  max-width: 100%; /* Ensure responsiveness */
}

.page-download__cta-wrapper {
  background-color: var(--card-bg);
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  margin-top: 60px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
}

.page-download__cta-text {
  font-size: 1.3em;
  color: var(--text-main);
  margin-bottom: 30px;
  font-weight: 600;
}

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

.page-download__faq-list {
  margin-top: 50px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-download__faq-item summary {
  list-style: none; /* Hide default marker */
  cursor: pointer;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.page-download__faq-item summary::-webkit-details-marker {
  display: none; /* Hide default marker for webkit */
}

.page-download__faq-qtext {
  flex-grow: 1;
  padding-right: 15px; /* Space for toggle icon */
}

.page-download__faq-toggle {
  font-size: 1.5em;
  font-weight: bold;
  color: var(--gold);
  line-height: 1;
}

.page-download__faq-answer {
  padding: 0 25px 20px 25px;
  color: var(--text-secondary);
  font-size: 1em;
  line-height: 1.8;
}

/* Final CTA Section */
.page-download__cta-final-section {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--deep-green) 0%, var(--bg-color) 100%);
  text-align: center;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-download__hero-title {
    font-size: clamp(2em, 6vw, 3em);
  }
  .page-download__section-title {
    font-size: 2em;
  }
  .page-download__guide-wrapper,
  .page-download__security-content {
    grid-template-columns: 1fr;
  }
  .page-download__security-image {
    order: -1; /* Image above text on smaller screens */
    margin-bottom: 30px;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding: 10px 0 40px 0;
    min-height: 500px;
  }
  .page-download__hero-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
  }
  .page-download__hero-description {
    font-size: 1em;
  }
  .page-download__hero-cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }
  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }

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

  .page-download__section-title {
    font-size: 1.8em;
  }
  .page-download__section-description {
    font-size: 0.95em;
  }
  .page-download__benefits-section,
  .page-download__installation-section,
  .page-download__features-section,
  .page-download__security-section,
  .page-download__faq-section,
  .page-download__cta-final-section {
    padding: 40px 0;
  }

  /* Images responsiveness */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-download__benefit-icon {
    min-width: 200px !important; /* Re-enforce min size for content images */
    min-height: 200px !important;
    width: 100% !important; /* Ensure it respects parent width */
    height: auto !important;
  }
  .page-download__guide-image,
  .page-download__features-image,
  .page-download__security-image {
    min-width: 200px !important; /* Ensure min size for content images */
    min-height: 200px !important; /* Ensure min size for content images */
  }

  .page-download__hero-image {
    min-height: 300px !important; /* Ensure hero image is not too small */
  }

  /* Video responsiveness (not used in this HTML but included for completeness) */
  .page-download video,
  .page-download__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-download__video-section,
  .page-download__video-container,
  .page-download__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  .page-download__video-section {
    padding-top: 10px !important;
  }
}