/* style/download.css */
/* body đã padding-top: var(--header-offset)；tránh trùng lặp */

:root {
  --page-download-primary-color: #11A84E;
  --page-download-secondary-color: #22C768;
  --page-download-text-main: #F2FFF6;
  --page-download-text-secondary: #A7D9B8;
  --page-download-bg-dark: #08160F;
  --page-download-card-bg: #11271B;
  --page-download-border-color: #2E7A4E;
  --page-download-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-download {
  color: var(--page-download-text-main); /* Đảm bảo chữ sáng trên nền tối của body */
  background-color: var(--page-download-bg-dark);
}

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

.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0;
  text-align: center;
  overflow: hidden;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-height: 700px; /* Giới hạn chiều cao hình ảnh hero */
  overflow: hidden;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-download__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 40px 20px 0;
  margin-top: -100px; /* Kéo nội dung lên trên hình ảnh để tạo hiệu ứng lớp */
}

.page-download__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--page-download-text-main);
  margin-bottom: 20px;
}

.page-download__hero-description {
  font-size: 1.1rem;
  color: var(--page-download-text-secondary);
  margin-bottom: 30px;
  line-height: 1.6;
}

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

.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;
  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-button-gradient);
  color: var(--page-download-text-main);
  border: none;
}

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

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

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

.page-download__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--page-download-text-main);
  text-align: center;
  margin-bottom: 25px;
}

.page-download__section-description {
  font-size: 1rem;
  color: var(--page-download-text-secondary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  line-height: 1.6;
}

.page-download__dark-section {
  background-color: var(--page-download-card-bg);
  padding: 80px 0;
}

.page-download__why-download-section {
  padding: 80px 0;
}

.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__feature-card {
  background-color: var(--page-download-card-bg);
  border: 1px solid var(--page-download-border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.page-download__feature-icon {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin-bottom: 20px;
  object-fit: contain;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__feature-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--page-download-text-main);
  margin-bottom: 15px;
}

.page-download__feature-text {
  font-size: 0.95rem;
  color: var(--page-download-text-secondary);
  line-height: 1.6;
}

.page-download__how-to-download-section {
  padding: 80px 0;
}

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

.page-download__step-block {
  background-color: var(--page-download-card-bg);
  border: 1px solid var(--page-download-border-color);
  border-radius: 12px;
  padding: 35px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__step-title {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--page-download-primary-color);
  margin-bottom: 25px;
  text-align: center;
}

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

.page-download__step-list li {
  position: relative;
  font-size: 1rem;
  color: var(--page-download-text-secondary);
  margin-bottom: 15px;
  padding-left: 40px;
  line-height: 1.6;
}

.page-download__step-number {
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background-color: var(--page-download-primary-color);
  color: var(--page-download-text-main);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
}

.page-download__troubleshooting-section {
  background-color: var(--page-download-card-bg);
  border: 1px solid var(--page-download-border-color);
  border-radius: 12px;
  padding: 35px;
  margin-top: 40px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__section-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--page-download-text-main);
  margin-bottom: 20px;
  text-align: center;
}

.page-download__troubleshooting-list {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

.page-download__troubleshooting-list li {
  font-size: 1rem;
  color: var(--page-download-text-secondary);
  margin-bottom: 10px;
  line-height: 1.6;
}

.page-download__troubleshooting-list strong {
  color: var(--page-download-primary-color);
}

.page-download__troubleshooting-contact {
  font-size: 1rem;
  color: var(--page-download-text-secondary);
  text-align: center;
}

.page-download__troubleshooting-contact a {
  color: var(--page-download-primary-color);
  text-decoration: underline;
}

.page-download__features-app-section {
  padding: 80px 0;
}

.page-download__feature-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__app-feature-item {
  background-color: var(--page-download-card-bg);
  border: 1px solid var(--page-download-border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.page-download__app-feature-icon {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin-bottom: 20px;
  object-fit: contain;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__app-feature-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--page-download-text-main);
  margin-bottom: 15px;
}

.page-download__app-feature-text {
  font-size: 0.95rem;
  color: var(--page-download-text-secondary);
  line-height: 1.6;
}

.page-download__faq-section {
  padding: 80px 0;
}

.page-download__faq-list {
  max-width: 900px;
  margin: 40px auto 0 auto;
}

.page-download__faq-item {
  background-color: var(--page-download-card-bg);
  border: 1px solid var(--page-download-border-color);
  border-radius: 12px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.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(--page-download-text-main);
  cursor: pointer;
  background-color: var(--page-download-card-bg);
  border-bottom: 1px solid var(--page-download-border-color);
  transition: background-color 0.3s ease;
  list-style: none; /* Dành cho details/summary */
}

.page-download__faq-question::-webkit-details-marker { /* Ẩn marker mặc định của summary */
  display: none;
}

.page-download__faq-question:hover {
  background-color: #1a332a; /* Màu nền hơi sáng hơn khi hover */
}

.page-download__faq-qtext {
  flex-grow: 1;
}

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

.page-download__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1rem;
  color: var(--page-download-text-secondary);
  line-height: 1.6;
}

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

.page-download__call-to-action-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--page-download-card-bg);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .page-download {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-download__hero-section {
    padding-bottom: 40px;
  }

  .page-download__hero-content {
    margin-top: -60px;
    padding: 20px 15px 0;
  }

  .page-download__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

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

  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
  }

  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
  }

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

  .page-download__section-description {
    font-size: 0.95rem;
    padding: 0 15px;
    margin-bottom: 30px;
  }

  .page-download__dark-section,
  .page-download__why-download-section,
  .page-download__how-to-download-section,
  .page-download__features-app-section,
  .page-download__faq-section,
  .page-download__call-to-action-section {
    padding: 40px 0;
  }

  .page-download__container {
    padding: 0 15px;
  }

  .page-download__features-grid,
  .page-download__download-steps,
  .page-download__feature-list-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-download__feature-card,
  .page-download__step-block,
  .page-download__app-feature-item,
  .page-download__troubleshooting-section,
  .page-download__faq-item {
    padding: 20px;
  }

  .page-download__feature-title,
  .page-download__step-title,
  .page-download__section-subtitle,
  .page-download__app-feature-title {
    font-size: 1.2rem;
  }

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

  .page-download__faq-answer {
    padding: 0 20px 15px 20px;
    font-size: 0.9rem;
  }

  /* Responsive image rules */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__section,
  .page-download__card,
  .page-download__container,
  .page-download__hero-image-wrapper,
  .page-download__cta-buttons,
  .page-download__download-steps,
  .page-download__features-grid,
  .page-download__feature-list-grid,
  .page-download__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden !important;
  }
  
  .page-download__hero-section {
    padding-top: 10px !important;
  }
}