/* style/download.css */
/* body đã có padding-top: var(--header-offset) từ shared.css */

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

.page-download {
  background-color: var(--page-download-bg-dark); /* Sử dụng màu nền tối từ bảng màu */
  color: var(--page-download-text-main); /* Văn bản chính màu sáng */
}

.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 10px 20px 60px; /* Chỉ 10px padding-top, không dùng --header-offset */
  background-color: var(--page-download-dark-bg);
  overflow: hidden;
}

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

.page-download__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3; /* Tạo hiệu ứng nền mờ */
  display: block;
}

.page-download__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 40px 20px;
  background-color: rgba(0, 0, 0, 0.5); /* Lớp phủ để chữ dễ đọc hơn */
  border-radius: 10px;
  margin-top: 150px; /* Đẩy nội dung xuống dưới hình ảnh */
}

.page-download__main-title {
  font-size: clamp(2em, 4vw, 3.2em);
  font-weight: 700;
  line-height: 1.2;
  color: var(--page-download-text-main);
  margin-bottom: 20px;
}

.page-download__subtitle {
  font-size: clamp(1em, 1.5vw, 1.2em);
  color: var(--page-download-text-secondary);
  margin-bottom: 30px;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-download__btn-primary {
  background: var(--page-download-btn-gradient);
  color: #ffffff; /* Luôn dùng màu trắng cho nút chính */
  border: 2px solid transparent;
}

.page-download__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(42, 209, 111, 0.4);
}

.page-download__btn-secondary {
  background: #ffffff;
  color: #11A84E; /* Dùng màu thương hiệu cho nút phụ */
  border: 2px solid #11A84E;
}

.page-download__btn-secondary:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(17, 168, 78, 0.2);
}

.page-download__content-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  line-height: 1.7;
  color: var(--page-download-text-main);
}

.page-download__section-title {
  font-size: clamp(1.8em, 3vw, 2.5em);
  font-weight: 700;
  color: var(--page-download-text-main);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.page-download__section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--page-download-glow);
  margin: 15px auto 0;
  border-radius: 2px;
}

.page-download__intro-section p,
.page-download__security-section p {
  font-size: 1.1em;
  margin-bottom: 20px;
  color: var(--page-download-text-secondary);
}

.page-download__image-content {
  width: 100%;
  height: auto;
  display: block;
  margin: 40px auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  max-width: 900px;
}

.page-download__dark-section {
  background-color: var(--page-download-card-bg);
  padding: 60px 20px;
  color: var(--page-download-text-main);
}

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

.page-download__text-secondary {
  color: var(--page-download-text-secondary);
}

.page-download__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__benefit-card {
  background-color: var(--page-download-bg-dark);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--page-download-border);
}

.page-download__card-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 15px;
}

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

.page-download__guide-block {
  background-color: var(--page-download-card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--page-download-border);
}

.page-download__guide-subtitle {
  font-size: 1.8em;
  font-weight: 600;
  color: var(--page-download-glow);
  margin-bottom: 25px;
  text-align: center;
}

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

.page-download__guide-list li {
  margin-bottom: 15px;
  font-size: 1.1em;
  color: var(--page-download-text-secondary);
  position: relative;
  padding-left: 30px;
}

.page-download__guide-list li::before {
  content: counter(list-item) ". ";
  counter-increment: list-item;
  color: var(--page-download-glow);
  font-weight: 700;
  position: absolute;
  left: 0;
}

.page-download__image-guide {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 20px;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-download__note {
  background-color: var(--page-download-deep-green);
  padding: 20px;
  border-radius: 8px;
  margin-top: 40px;
  font-size: 1.1em;
  color: var(--page-download-text-main);
  border-left: 5px solid var(--page-download-glow);
}

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

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

.page-download__feature-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.page-download__feature-item {
  background-color: var(--page-download-bg-dark);
  padding: 20px;
  border-radius: 8px;
  border: 1px solid var(--page-download-border);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
  font-size: 1.1em;
  color: var(--page-download-text-secondary);
}

.page-download__feature-item strong {
  color: var(--page-download-text-main);
}

.page-download__faq-list {
  margin-top: 40px;
}

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

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  font-size: 1.2em;
  font-weight: 600;
  color: var(--page-download-text-main);
  background-color: var(--page-download-deep-green);
  user-select: none;
  list-style: none; /* For details/summary */
}

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

.page-download__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-download__faq-item[open] .page-download__faq-toggle {
  transform: rotate(45deg);
}

.page-download__faq-answer {
  padding: 20px;
  padding-top: 0;
  font-size: 1.1em;
  color: var(--page-download-text-secondary);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .page-download__hero-content {
    margin-top: 100px;
    padding: 30px 15px;
  }
  .page-download__main-title {
    font-size: clamp(1.8em, 4vw, 2.8em);
  }
  .page-download__subtitle {
    font-size: clamp(0.9em, 1.5vw, 1.1em);
  }
  .page-download__guide-steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding: 10px 15px 40px;
  }
  .page-download__hero-content {
    margin-top: 80px;
    padding: 25px 10px;
  }
  .page-download__main-title {
    font-size: clamp(1.6em, 6vw, 2.5em);
  }
  .page-download__subtitle {
    font-size: clamp(0.8em, 2.5vw, 1em);
  }
  .page-download__cta-buttons {
    flex-direction: column;
    gap: 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;
  }

  .page-download__content-area,
  .page-download__dark-section {
    padding: 30px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  .page-download__section-title {
    font-size: clamp(1.6em, 5vw, 2.2em);
    margin-bottom: 30px;
  }
  
  .page-download__intro-section p,
  .page-download__security-section p,
  .page-download__guide-list li,
  .page-download__note,
  .page-download__feature-item,
  .page-download__faq-answer p {
    font-size: 1em;
  }

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

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

  .page-download__faq-question {
    font-size: 1.1em;
    padding: 15px;
  }
  
  /* 强制图片响应式 */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* 强制视频响应式 (nếu có) */
  .page-download video,
  .page-download__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* Video/Image container responsive */
  .page-download__video-section,
  .page-download__video-container,
  .page-download__video-wrapper,
  .page-download__image-content,
  .page-download__image-guide {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important; /* Ensure no overflow */
  }
  
  /* Padding for content containers on mobile */
  .page-download__content-area,
  .page-download__dark-section,
  .page-download__cta-buttons,
  .page-download__faq-list,
  .page-download__feature-list,
  .page-download__benefits-grid,
  .page-download__guide-steps {
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  /* Specific padding for hero section on mobile */
  .page-download__hero-section {
    padding-left: 15px !important;
    padding-right: 15px !important;
    padding-top: 10px !important; /* body đã xử lý header offset */
  }
}