body {
  background: #08160F; /* Nền tối theo yêu cầu */
  color: #F2FFF6; /* Chữ sáng để tương phản */
  padding-top: var(--header-offset); /* Đảm bảo nội dung không bị header che */
}

.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #F2FFF6; /* Text Main */
  background: #08160F; /* Nền chính của trang */
}

.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: 60px 20px;
  padding-top: 10px; /* Nhỏ hơn so với --header-offset */
  background: linear-gradient(180deg, #0A4B2C 0%, #08160F 100%);
  text-align: center;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  margin-bottom: 30px;
  order: 1; /* Đảm bảo hình ảnh ở trên */
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-download__hero-content {
  order: 2; /* Đảm bảo nội dung ở dưới */
  max-width: 800px;
}

.page-download__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em);
  font-weight: bold;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-download__hero-description {
  font-size: 1.1em;
  color: #A7D9B8; /* Text Secondary */
  margin-bottom: 30px;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* Button color */
  color: #F2FFF6; /* Text Main */
  border: none;
}

.page-download__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.3);
}

.page-download__btn-secondary {
  background: transparent;
  color: #57E38D; /* Glow color for border */
  border: 2px solid #57E38D;
}

.page-download__btn-secondary:hover {
  background: #57E38D;
  color: #08160F; /* Background color */
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.3);
}

.page-download__section-title {
  font-size: 2.5em;
  color: #F2FFF6; /* Text Main */
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
}

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

.page-download__why-download-section,
.page-download__how-to-download-section,
.page-download__app-features-detail-section,
.page-download__security-section,
.page-download__faq-section,
.page-download__cta-final-section {
  padding: 80px 0;
}

.page-download__why-download-section {
  background: #11271B; /* Card BG */
}

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

.page-download__feature-card {
  background: #0A4B2C; /* Deep Green */
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  border: 1px solid #2E7A4E; /* Border */
}

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

.page-download__feature-image {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 10px;
}

.page-download__feature-title {
  font-size: 1.5em;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 15px;
}

.page-download__feature-text {
  color: #A7D9B8; /* Text Secondary */
}

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

.page-download__download-card {
  background: #11271B; /* Card BG */
  border-radius: 15px;
  padding: 40px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid #2E7A4E; /* Border */
}

.page-download__card-title {
  font-size: 1.8em;
  color: #F2FFF6; /* Text Main */
  text-align: center;
  margin-bottom: 30px;
}

.page-download__qr-code-wrapper {
  text-align: center;
  margin-bottom: 30px;
}

.page-download__qr-code {
  width: 250px;
  height: 250px;
  border: 5px solid #F2FFF6; /* Text Main */
  border-radius: 10px;
  display: inline-block;
}

.page-download__step-list {
  list-style-type: decimal;
  padding-left: 20px;
  margin-bottom: 30px;
  color: #A7D9B8; /* Text Secondary */
}

.page-download__step-list li {
  margin-bottom: 10px;
}

.page-download__step-list strong {
  color: #F2FFF6; /* Text Main */
}

.page-download__btn-full-width {
  width: 100%;
  text-align: center;
  margin-top: 20px;
}

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

.page-download__feature-item {
  background: #0A4B2C; /* Deep Green */
  padding: 25px;
  border-radius: 10px;
  border: 1px solid #2E7A4E; /* Border */
}

.page-download__feature-heading {
  font-size: 1.4em;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 10px;
}

.page-download__feature-item p {
  color: #A7D9B8; /* Text Secondary */
}

.page-download__security-section {
  background: #11271B; /* Card BG */
}

.page-download__security-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  text-align: center;
}

.page-download__security-item {
  background: #0A4B2C; /* Deep Green */
  padding: 30px;
  border-radius: 15px;
  border: 1px solid #2E7A4E; /* Border */
}

.page-download__security-icon {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin-bottom: 20px;
}

.page-download__security-heading {
  font-size: 1.5em;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 10px;
}

.page-download__security-item p {
  color: #A7D9B8; /* Text Secondary */
}

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

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

.page-download__faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  background: #0A4B2C; /* Deep Green */
  color: #F2FFF6; /* Text Main */
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease;
}

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

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

.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;
  color: #A7D9B8; /* Text Secondary */
  background: #11271B; /* Card BG */
}

.page-download__cta-final-section {
  background: linear-gradient(180deg, #08160F 0%, #0A4B2C 100%);
  text-align: center;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-download__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }
  .page-download__section-title {
    font-size: 2em;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important;
  }
  .page-download__container {
    padding-left: 15px;
    padding-right: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-download__hero-image,
  .page-download__feature-image,
  .page-download__qr-code,
  .page-download__security-icon {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__hero-image-wrapper,
  .page-download__download-card,
  .page-download__feature-card,
  .page-download__security-item,
  .page-download__feature-item,
  .page-download__faq-item,
  .page-download__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-download__cta-buttons {
    flex-direction: column !important;
    gap: 15px;
  }

  .page-download__btn-primary,
  .page-download__btn-secondary,
  .page-download a[class*="button"],
  .page-download a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-download__section-title {
    font-size: 1.8em;
  }

  .page-download__section-description,
  .page-download__hero-description {
    font-size: 1em;
  }

  .page-download__why-download-section,
  .page-download__how-to-download-section,
  .page-download__app-features-detail-section,
  .page-download__security-section,
  .page-download__faq-section,
  .page-download__cta-final-section {
    padding: 50px 0;
  }

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

@media (max-width: 480px) {
  .page-download__main-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
  }
  .page-download__section-title {
    font-size: 1.6em;
  }
  .page-download__download-card,
  .page-download__feature-card,
  .page-download__security-item,
  .page-download__feature-item {
    padding: 20px;
  }
  .page-download__feature-title,
  .page-download__security-heading,
  .page-download__feature-heading {
    font-size: 1.2em;
  }
}