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

  font-family: 'Arial', sans-serif;
  color: var(--text-main-color);
  background-color: var(--bg-color-primary);
}

.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 10px 20px 60px;
  overflow: hidden;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 600px; /* Limit height for hero image */
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-download__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 0 15px;
}

.page-download__main-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 15px;
  color: var(--text-main-color);
}

.page-download__hero-description {
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.6;
  margin-bottom: 30px;
  color: var(--text-secondary-color);
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 18px;
  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(--button-gradient);
  color: var(--text-main-color);
  border: none;
  box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
}

.page-download__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

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

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

.page-download__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  box-sizing: border-box;
}

.page-download__section-title {
  font-size: clamp(24px, 3.5vw, 38px);
  font-weight: 700;
  margin-bottom: 25px;
  text-align: center;
  color: var(--gold-color);
  position: relative;
  padding-bottom: 10px;
}

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

.page-download__sub-title {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 600;
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--text-main-color);
  text-align: center;
}

.page-download__text-block {
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 20px;
  color: var(--text-secondary-color);
  text-align: justify;
}

.page-download__introduction-section {
  background-color: var(--bg-color-primary);
}

.page-download__steps-section {
  background-color: var(--bg-color-card);
  padding-bottom: 60px;
}

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

.page-download__card {
  background-color: var(--bg-color-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-main-color);
}

.page-download__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-download__card-image {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-download__card-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--gold-color);
}

.page-download__list {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
  text-align: left;
  color: var(--text-secondary-color);
}

.page-download__list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  font-size: 16px;
}

.page-download__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--glow-color);
  font-weight: bold;
}

.page-download__troubleshooting {
  margin-top: 50px;
  padding: 30px;
  background-color: var(--deep-green-color);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  text-align: center;
}

.page-download__promotions-section {
  background-color: var(--bg-color-primary);
  padding-bottom: 60px;
}

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

.page-download__promo-card {
  background-color: var(--bg-color-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--text-main-color);
}

.page-download__promo-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-download__promo-image {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 15px;
  display: block;
}

.page-download__promo-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--gold-color);
}

.page-download__promo-description {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary-color);
}

.page-download__cta-center {
  margin-top: 40px;
  text-align: center;
}

.page-download__features-section {
  background-color: var(--bg-color-card);
  padding-bottom: 60px;
}

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

.page-download__feature-list li {
  background-color: var(--bg-color-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 20px;
  font-size: 17px;
  line-height: 1.6;
  position: relative;
  padding-left: 45px;
  color: var(--text-secondary-color);
}

.page-download__feature-list li strong {
  color: var(--text-main-color);
}

.page-download__feature-list li::before {
  content: '★';
  position: absolute;
  left: 15px;
  top: 20px;
  color: var(--gold-color);
  font-size: 20px;
}

.page-download__comparison-section {
  background-color: var(--bg-color-primary);
  padding-bottom: 60px;
}

.page-download__comparison-table {
  margin-top: 30px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  color: var(--text-main-color);
}

.page-download__table-header,
.page-download__table-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.page-download__table-header {
  background-color: var(--deep-green-color);
  font-weight: 700;
  font-size: 18px;
  color: var(--gold-color);
}

.page-download__table-row {
  border-top: 1px solid var(--divider-color);
}

.page-download__table-row:nth-child(even) {
  background-color: var(--bg-color-card);
}

.page-download__table-cell {
  padding: 15px 20px;
  text-align: center;
  border-right: 1px solid var(--divider-color);
  font-size: 16px;
}

.page-download__table-cell:last-child {
  border-right: none;
}

.page-download__faq-section {
  background-color: var(--bg-color-card);
  padding-bottom: 60px;
}

.page-download__faq-list {
  margin-top: 30px;
}

.page-download__faq-item {
  background-color: var(--bg-color-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-main-color);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--deep-green-color);
  color: var(--gold-color);
  user-select: none;
}

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

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

.page-download__faq-toggle {
  font-size: 24px;
  line-height: 1;
  margin-left: 15px;
  transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
  padding: 15px 25px 20px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary-color);
  border-top: 1px solid var(--divider-color);
}

.page-download__conclusion-section {
  background-color: var(--bg-color-primary);
  padding-bottom: 60px;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .page-download__hero-image {
    max-height: 500px;
  }
}

@media (max-width: 768px) {
  .page-download__hero-image {
    max-height: 400px;
  }

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

  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100% !important;
    padding: 12px 20px;
    font-size: 16px;
  }

  .page-download__container {
    padding: 30px 15px;
  }

  .page-download__section-title {
    font-size: 28px;
    margin-bottom: 20px;
  }

  .page-download__sub-title {
    font-size: 22px;
  }

  .page-download__text-block {
    font-size: 15px;
    line-height: 1.6;
  }

  .page-download__step-cards,
  .page-download__promo-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-download__card,
  .page-download__promo-card {
    padding: 20px;
  }

  .page-download__card-title,
  .page-download__promo-title {
    font-size: 20px;
  }

  .page-download__list li {
    font-size: 15px;
  }

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

  .page-download__feature-list li {
    font-size: 15px;
    padding-left: 40px;
  }

  .page-download__table-header,
  .page-download__table-row {
    grid-template-columns: 1fr;
  }

  .page-download__table-header .page-download__table-cell:nth-child(2),
  .page-download__table-header .page-download__table-cell:nth-child(3) {
    display: none;
  }

  .page-download__table-row .page-download__table-cell:nth-child(2)::before {
    content: 'Ứng Dụng: ';
    font-weight: bold;
  }

  .page-download__table-row .page-download__table-cell:nth-child(3)::before {
    content: 'Web: ';
    font-weight: bold;
  }

  .page-download__table-cell {
    border-right: none;
    text-align: left;
    border-bottom: 1px solid var(--divider-color);
  }

  .page-download__table-row .page-download__table-cell:first-child {
    background-color: var(--deep-green-color);
    color: var(--gold-color);
    font-weight: 600;
  }

  .page-download__faq-question {
    font-size: 16px;
    padding: 15px 20px;
  }

  .page-download__faq-answer {
    font-size: 15px;
    padding: 10px 20px 15px;
  }

  /* Image and video responsive 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-section,
  .page-download__cta-buttons,
  .page-download__promo-grid,
  .page-download__step-cards,
  .page-download__feature-list,
  .page-download__comparison-table,
  .page-download__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-download__hero-section {
    padding-top: 10px !important; /* body already handles --header-offset */
  }

  .page-download__cta-buttons {
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-download__cta-buttons a {
    width: 100%;
  }
}