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

.page-download {
  background-color: #08160F; /* Từ custom palette "背景" */
  color: #F2FFF6; /* Từ custom palette "Text Main" */
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  padding-bottom: 50px; /* Khoảng cách dưới cùng */
}

.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 20px 60px; /* Small top padding, larger bottom for content */
  text-align: center;
  overflow: hidden;
  box-sizing: border-box;
}

.page-download__hero-image {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  margin-bottom: 40px; /* Space between image and text */
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.page-download__hero-content {
  max-width: 900px;
  margin: 0 auto;
  z-index: 1;
}

.page-download__hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: #F2FFF6;
  line-height: 1.2;
  margin-bottom: 20px;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.page-download__hero-description {
  font-size: 1.15rem;
  color: #A7D9B8; /* Text Secondary */
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-download__cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-top: 30px;
}

.page-download__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* Button color */
  color: #F2FFF6;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: none;
  cursor: pointer;
  display: inline-block;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
}

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-download__section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

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

.page-download__section-image {
  width: 100%;
  height: auto;
  display: block;
  margin: 40px auto 0;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  object-fit: cover;
}

.page-download__section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: #F2FFF6;
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.page-download__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: #57E38D; /* Glow color */
  border-radius: 2px;
}

.page-download__section-description {
  font-size: 1.1rem;
  color: #A7D9B8; /* Text Secondary */
  text-align: center;
  max-width: 900px;
  margin: 0 auto 40px;
}

.page-download__card {
  background-color: #11271B; /* Card B G */
  border: 1px solid #2E7A4E; /* Border color */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  color: #F2FFF6;
  margin-bottom: 0;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-download__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #57E38D; /* Glow color for card titles */
  margin-bottom: 15px;
}

.page-download__card p {
  color: #A7D9B8; /* Text Secondary */
  font-size: 1rem;
}

.page-download__download-platform {
  background-color: #11271B; /* Card B G */
  border: 1px solid #2E7A4E; /* Border color */
  border-radius: 12px;
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.page-download__platform-title {
  font-size: 2rem;
  font-weight: 700;
  color: #F2FFF6;
  text-align: center;
  margin-bottom: 30px;
  padding-bottom: 10px;
  border-bottom: 2px solid #2E7A4E; /* Divider */
}

.page-download__platform-content {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 40px;
}

.page-download__qr-code-container {
  flex: 0 0 300px;
  max-width: 300px;
  text-align: center;
  background-color: #0A4B2C; /* Deep Green */
  padding: 20px;
  border-radius: 10px;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
  border: 1px solid #2E7A4E;
}

.page-download__qr-code-image {
  width: 250px;
  height: 250px;
  object-fit: contain;
  margin-bottom: 15px;
  border: 5px solid #F2FFF6;
  border-radius: 5px;
}

.page-download__qr-code-container p {
  color: #F2FFF6;
  font-size: 1.1rem;
  font-weight: 500;
}

.page-download__step-list {
  flex: 1;
  list-style-type: decimal;
  padding-left: 25px;
  color: #A7D9B8;
}

.page-download__step-list li {
  margin-bottom: 15px;
  font-size: 1rem;
}

.page-download__step-list strong {
  color: #F2FFF6;
}

.page-download__security-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.page-download__security-list li {
  background-color: #11271B;
  border: 1px solid #2E7A4E;
  border-radius: 8px;
  padding: 20px;
  font-size: 1rem;
  color: #A7D9B8;
  position: relative;
  padding-left: 45px;
}

.page-download__security-list li::before {
  content: '✅';
  position: absolute;
  left: 15px;
  top: 18px;
  font-size: 1.2em;
}

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

.page-download__faq-item {
  background-color: #11271B; /* Card B G */
  border: 1px solid #2E7A4E; /* Border color */
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  color: #F2FFF6;
}

.page-download__faq-item summary {
  list-style: none;
  cursor: pointer;
}

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

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-weight: 600;
  font-size: 1.1rem;
  color: #F2FFF6;
  background-color: #0A4B2C; /* Deep Green for summary background */
  transition: background-color 0.3s ease;
}

.page-download__faq-question:hover {
  background-color: #1E3A2A; /* Divider for hover */
}

.page-download__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
  color: #57E38D; /* Glow color */
  transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  color: #A7D9B8; /* Text Secondary */
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.page-download__faq-item[open] .page-download__faq-answer {
  max-height: 500px; /* Adjust as needed */
  padding-top: 15px;
}

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

  .page-download__hero-section {
    padding: 10px 15px 40px;
  }

  .page-download__hero-image {
    margin-bottom: 30px;
  }

  .page-download__hero-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

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

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

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

  .page-download__section {
    padding: 40px 15px;
  }

  .page-download__grid-layout {
    gap: 20px;
  }

  .page-download__section-image {
    margin-top: 30px;
  }

  .page-download__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    margin-bottom: 30px;
  }

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

  .page-download__card {
    padding: 25px;
    border-radius: 10px;
  }

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

  .page-download__card p {
    font-size: 0.95rem;
  }

  .page-download__download-platform {
    padding: 30px 20px;
    margin-bottom: 30px;
  }

  .page-download__platform-title {
    font-size: 1.6rem;
    margin-bottom: 25px;
  }

  .page-download__platform-content {
    flex-direction: column;
    gap: 30px;
  }

  .page-download__qr-code-container {
    flex: 0 0 auto;
    max-width: 100%;
    width: 100%;
    padding: 15px;
  }

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

  .page-download__step-list {
    padding-left: 20px;
  }

  .page-download__step-list li {
    font-size: 0.95rem;
  }

  .page-download__security-list {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .page-download__security-list li {
    padding: 15px 15px 15px 40px;
    font-size: 0.95rem;
  }

  .page-download__security-list li::before {
    top: 15px;
    left: 10px;
  }

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

  .page-download__faq-answer {
    padding: 0 20px 15px;
  }

  /* Responsive images */
  .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__video-section,
  .page-download__video-container,
  .page-download__video-wrapper,
  .page-download__cta-buttons,
  .page-download__button-group,
  .page-download__btn-container {
    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;
  }

  .page-download__video-overlay-title {
    font-size: clamp(1.2rem, 5vw, 1.8rem);
  }

  .page-download__video-overlay-text {
    font-size: 0.9rem;
  }
}

/* Ensure images are content-displaying, not tiny icons */
.page-download img {
  min-width: 200px;
  min-height: 200px;
}