.page-download {
  color: #ffffff; /* Sắc độ chữ trắng trên nền tối */
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  background-color: #0a0a0a;
}

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

.page-download__hero-section {
  position: relative;
  background: linear-gradient(135deg, #8B0000, #FFD700); /* Màu chủ đạo và phụ trợ */
  padding: 80px 0;
  padding-top: var(--header-offset, 120px); /* Đảm bảo không bị header che */
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-download__hero-title {
  font-size: 3.5em;
  color: #ffffff;
  margin-bottom: 20px;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-download__hero-description {
  font-size: 1.3em;
  color: #f0f0f0;
  max-width: 800px;
  margin: 0 auto 40px;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__btn-primary {
  background-color: #FFD700;
  color: #8B0000; /* Màu chữ tương phản */
  border: 2px solid #FFD700;
}

.page-download__btn-primary:hover {
  background-color: #e6c200;
  border-color: #e6c200;
  transform: translateY(-2px);
}

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

.page-download__btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #FFD700;
  transform: translateY(-2px);
}

.page-download__hero-image-wrapper {
  margin-top: 40px;
  max-width: 100%;
  overflow: hidden;
}

.page-download__hero-image {
  max-width: 100%;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.page-download__section-title {
  font-size: 2.5em;
  color: #FFD700;
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-download__section-description {
  font-size: 1.1em;
  color: #f0f0f0;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 50px;
}

.page-download__benefits-section,
.page-download__features-section,
.page-download__faq-section,
.page-download__cta-bottom-section {
  padding: 60px 0;
  background-color: #0a0a0a;
}

.page-download__benefits-section {
    background-color: #1a1a1a;
}

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

.page-download__benefit-card {
  background-color: rgba(255, 255, 255, 0.08); /* Nền tối nhẹ */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.page-download__card-title {
  font-size: 1.5em;
  color: #FFD700;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-download__card-text {
  font-size: 1em;
  color: #e0e0e0;
}

.page-download__guide-section {
    background-color: #0a0a0a;
}

.page-download__guide-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 40px;
}

.page-download__guide-item {
  background-color: rgba(255, 255, 255, 0.08);
  padding: 30px;
  border-radius: 12px;
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.page-download__guide-subtitle {
  font-size: 1.8em;
  color: #FFD700;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-download__guide-list {
  list-style-type: decimal;
  margin-left: 20px;
  padding-left: 0;
  margin-bottom: 30px;
}

.page-download__guide-list li {
  margin-bottom: 15px;
  font-size: 1.1em;
}

.page-download__guide-list li strong {
  color: #FFD700;
}

.page-download__guide-image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  margin-top: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__qr-code-wrapper {
  text-align: center;
  background-color: rgba(255, 255, 255, 0.08);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  margin-top: 40px;
}

.page-download__qr-code-title {
  font-size: 1.8em;
  color: #FFD700;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-download__qr-code-image {
  max-width: 250px;
  height: auto;
  border: 5px solid #FFD700;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.page-download__qr-code-text {
  font-size: 1.1em;
  color: #e0e0e0;
  margin-top: 20px;
}

.page-download__features-section {
    background-color: #1a1a1a;
}

.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.page-download__feature-card {
  background-color: rgba(255, 255, 255, 0.08);
  padding: 30px;
  border-radius: 12px;
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

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

.page-download__features-image {
  max-width: 100%;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  margin-top: 40px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__faq-section {
    background-color: #0a0a0a;
}

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

.page-download__faq-item {
  background-color: rgba(255, 255, 255, 0.08);
  margin-bottom: 15px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  font-size: 1.2em;
  font-weight: bold;
  color: #ffffff;
  background-color: #8B0000; /* Màu nền cho câu hỏi */
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color 0.3s ease;
}

.page-download__faq-question:hover {
  background-color: #a00000;
}

.page-download__faq-question h3 {
  margin: 0;
  color: #ffffff;
  font-size: 1em; /* Điều chỉnh kích thước font cho tiêu đề trong FAQ */
}

.page-download__faq-toggle {
  font-size: 1.5em;
  font-weight: bold;
  color: #FFD700;
  transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: #e0e0e0;
  background-color: rgba(255, 255, 255, 0.05);
}

.page-download__faq-item.active .page-download__faq-answer {
  max-height: 1000px !important; /* Đủ lớn để chứa nội dung */
  padding: 20px;
}

.page-download__faq-answer p {
  margin: 0;
  font-size: 1em;
}

.page-download__cta-bottom-section {
  text-align: center;
  background-color: #8B0000; /* Nền màu phụ trợ */
  padding: 80px 0;
}

.page-download__cta-bottom-section .page-download__section-title {
  color: #FFD700;
}

.page-download__cta-bottom-section .page-download__section-description {
  color: #f0f0f0;
  margin-bottom: 40px;
}

.page-download__btn-large {
  padding: 18px 40px;
  font-size: 1.2em;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .page-download__hero-title {
    font-size: 3em;
  }
  .page-download__section-title {
    font-size: 2em;
  }
  .page-download__hero-description,
  .page-download__section-description {
    font-size: 1em;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding-top: var(--header-offset, 120px) !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__hero-title {
    font-size: 2.5em;
  }
  .page-download__section-title {
    font-size: 1.8em;
  }
  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100%;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-download__benefits-grid,
  .page-download__features-grid {
    grid-template-columns: 1fr;
  }
  .page-download__guide-list {
    margin-left: 0;
    padding-left: 15px;
  }

  /* Mobile image responsiveness */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-download__container,
  .page-download__hero-section,
  .page-download__benefits-section,
  .page-download__guide-section,
  .page-download__features-section,
  .page-download__faq-section,
  .page-download__cta-bottom-section,
  .page-download__hero-image-wrapper,
  .page-download__qr-code-wrapper,
  .page-download__guide-item,
  .page-download__benefit-card,
  .page-download__feature-card,
  .page-download__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden !important; /* Prevent horizontal scroll */
  }
  .page-download__qr-code-image {
    max-width: 200px;
  }
  .page-download__faq-question,
  .page-download__faq-answer {
    padding-left: 15px;
    padding-right: 15px;
  }
}

@media (max-width: 480px) {
  .page-download__hero-title {
    font-size: 2em;
  }
  .page-download__hero-description {
    font-size: 0.9em;
  }
  .page-download__section-title {
    font-size: 1.5em;
  }
  .page-download__guide-subtitle,
  .page-download__qr-code-title,
  .page-download__card-title {
    font-size: 1.3em;
  }
  .page-download__btn-large {
    font-size: 1.1em;
    padding: 15px 25px;
  }
  .page-download__faq-question h3 {
    font-size: 0.9em;
  }
}