.page-download {
  font-family: 'Arial', sans-serif;
  color: #333333; /* Dark text on light body background */
  line-height: 1.6;
}

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

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 30px;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

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

.page-download__main-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  color: #26A9E0;
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.page-download__description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #555555;
}

.page-download__cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
}

.page-download__cta-button {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__btn-primary {
  background: #26A9E0;
  color: #ffffff;
  border: 2px solid #26A9E0;
}

.page-download__btn-primary:hover {
  background: #1e87c2;
  transform: translateY(-2px);
}

.page-download__btn-secondary {
  background: #ffffff;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-download__btn-secondary:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
}

.page-download__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: #26A9E0;
  text-align: center;
  margin-bottom: 40px;
  font-weight: 700;
}

.page-download__features-section,
.page-download__how-to-download,
.page-download__faq-section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
  background: #ffffff;
}

.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: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease;
  border: 1px solid #e0e0e0;
}

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

.page-download__feature-icon {
  width: 100%; /* Ensure images fill card width */
  height: auto;
  max-height: 200px;
  object-fit: cover;
  margin-bottom: 20px;
  border-radius: 8px;
}

.page-download__card-title {
  font-size: 1.5rem;
  color: #26A9E0;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-download__card-text {
  font-size: 1rem;
  color: #555555;
}

.page-download__download-steps {
  display: flex;
  flex-direction: column;
  gap: 50px;
  margin-top: 40px;
}

.page-download__step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
}

.page-download__step-item:nth-child(even) {
  flex-direction: column-reverse;
}

.page-download__step-title {
  font-size: 1.8rem;
  color: #26A9E0;
  font-weight: 600;
}

.page-download__step-list {
  list-style-type: decimal;
  padding-left: 20px;
  text-align: left;
  font-size: 1.05rem;
  color: #444444;
  margin-bottom: 20px;
}

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

.page-download__step-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
}

.page-download__system-requirements {
  margin-top: 60px;
  padding: 30px;
  background: #f8f8f8;
  border-radius: 12px;
  border: 1px solid #eee;
}

.page-download__sub-title {
  font-size: 1.6rem;
  color: #26A9E0;
  margin-bottom: 20px;
  text-align: center;
}

.page-download__requirements-list {
  list-style-type: disc;
  padding-left: 30px;
  font-size: 1rem;
  color: #555555;
}

.page-download__requirements-list li {
  margin-bottom: 8px;
}

.page-download__why-choose-us {
  background: #26A9E0;
  color: #ffffff;
  padding: 80px 20px;
  text-align: center;
}

.page-download__why-choose-us .page-download__section-title {
  color: #ffffff;
  margin-bottom: 50px;
}

.page-download__why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto 50px;
}

.page-download__reason-card {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.page-download__reason-card .page-download__card-title {
  color: #ffffff;
  font-size: 1.4rem;
  margin-bottom: 15px;
}

.page-download__reason-card .page-download__card-text {
  color: #f0f8ff;
}

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

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

.page-download__faq-item {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #333333;
  cursor: pointer;
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

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

.page-download__faq-question:hover {
  background-color: #f5f5f5;
}

.page-download__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  color: #26A9E0;
  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: #555555;
  line-height: 1.7;
}

.page-download__cta-bottom {
  background: #26A9E0;
  color: #ffffff;
  padding: 80px 20px;
  text-align: center;
}

.page-download__cta-bottom .page-download__section-title {
  color: #ffffff;
  margin-bottom: 25px;
}

.page-download__cta-bottom .page-download__description {
  color: #f0f8ff;
  max-width: 800px;
  margin: 0 auto 40px;
}

/* Responsive Design */
@media (min-width: 769px) {
  .page-download__step-item:nth-child(even) {
    flex-direction: row;
  }

  .page-download__step-item:nth-child(odd) {
    flex-direction: row-reverse;
  }

  .page-download__step-item {
    text-align: left;
    justify-content: space-between;
  }

  .page-download__step-list {
    margin-bottom: 0;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding: 10px 15px 40px;
  }

  .page-download__main-title {
    font-size: 2.2rem;
  }

  .page-download__description {
    font-size: 1rem;
  }

  .page-download__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-download__cta-button {
    width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
  }

  .page-download__section-title {
    font-size: 2rem;
    margin-bottom: 30px;
  }

  .page-download__features-section,
  .page-download__how-to-download,
  .page-download__why-choose-us,
  .page-download__faq-section,
  .page-download__cta-bottom {
    padding: 40px 15px;
  }

  .page-download__feature-card {
    padding: 20px;
  }

  .page-download__feature-icon {
    max-height: 150px;
  }

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

  .page-download__step-item {
    gap: 30px;
  }

  .page-download__step-title {
    font-size: 1.6rem;
  }

  .page-download__step-list {
    padding-left: 25px;
  }

  .page-download__system-requirements {
    padding: 20px;
  }

  .page-download__sub-title {
    font-size: 1.4rem;
  }

  .page-download__why-grid {
    gap: 20px;
  }

  .page-download__reason-card {
    padding: 25px;
  }

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

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

  /* Mobile responsive for all 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__features-section,
  .page-download__how-to-download,
  .page-download__why-choose-us,
  .page-download__faq-section,
  .page-download__cta-bottom {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    overflow: hidden !important;
  }

  .page-download__video-section {
    padding-top: 10px !important; /* body đã xử lý padding-top */
  }

  /* Ensure video containers are responsive */
  .page-download video,
  .page-download__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__video-section,
  .page-download__video-container,
  .page-download__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    overflow: hidden !important;
  }
}

@media (max-width: 480px) {
  .page-download__main-title {
    font-size: 1.8rem;
  }

  .page-download__section-title {
    font-size: 1.6rem;
  }

  .page-download__feature-card,
  .page-download__reason-card {
    padding: 15px;
  }

  .page-download__card-title {
    font-size: 1.2rem;
  }

  .page-download__step-title {
    font-size: 1.4rem;
  }
}