.page-download {
  background-color: #08160F; /* Nền tối theo màu tùy chỉnh */
  color: #F2FFF6; /* Chữ sáng cho nền tối */
  font-family: Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
}

.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* padding-top nhỏ, không dùng var(--header-offset) */
  text-align: center;
  overflow: hidden;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-height: 700px; /* Giới hạn chiều cao cho hình ảnh hero */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-download__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin-top: 40px;
  padding: 0 20px;
}

.page-download__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #F2FFF6;
  margin-bottom: 20px;
  /* Không đặt font-size cố định quá lớn, dùng clamp nếu cần */
  font-size: clamp(2.2rem, 4vw, 3.5rem);
}

.page-download__description {
  font-size: 1.1rem;
  color: #A7D9B8;
  margin-bottom: 30px;
}

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

.page-download__btn-primary,
.page-download__btn-secondary,
.page-download__btn-text {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-download__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #F2FFF6;
  border: 2px solid transparent;
}

.page-download__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  box-shadow: 0 0 15px #57E38D;
}

.page-download__btn-secondary {
  background: transparent;
  color: #F2FFF6;
  border: 2px solid #2E7A4E;
}

.page-download__btn-secondary:hover {
  background: #2E7A4E;
  color: #F2FFF6;
  box-shadow: 0 0 15px #57E38D;
}

.page-download__btn-text {
  background: none;
  border: 1px solid #2E7A4E;
  color: #57E38D;
  padding: 10px 20px;
  font-size: 0.9em;
  border-radius: 5px;
}

.page-download__btn-text:hover {
  background: #2E7A4E;
  color: #F2FFF6;
}

.page-download__section {
  padding: 60px 0;
  border-bottom: 1px solid #1E3A2A;
}

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

.page-download__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  color: #F2FFF6;
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
}

.page-download__sub-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: #F2FFF6;
  margin-top: 40px;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-download p {
  margin-bottom: 15px;
  color: #A7D9B8;
}

.page-download strong {
  color: #F2FFF6;
}

.page-download__list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 20px;
}

.page-download__list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 10px;
  color: #A7D9B8;
}

.page-download__list li::before {
  content: '✔';
  position: absolute;
  left: 0;
  color: #57E38D; /* Glow color */
  font-weight: bold;
}

.page-download__qr-code-wrapper {
  text-align: center;
  margin: 40px auto;
  padding: 20px;
  background-color: #11271B; /* Card BG color */
  border-radius: 10px;
  max-width: 500px;
  box-sizing: border-box;
}

.page-download__qr-code {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 15px auto;
}

.page-download__qr-caption {
  font-style: italic;
  color: #A7D9B8;
  font-size: 0.9em;
}

.page-download__guide-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 40px;
  background-color: #11271B; /* Card BG color */
  border-radius: 10px;
  padding: 30px;
  gap: 20px;
}

.page-download__guide-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.page-download__step-content {
  flex: 1;
  text-align: left;
}

.page-download__step-content h4 {
  font-size: 1.2rem;
  color: #F2FFF6;
  margin-bottom: 10px;
}

.page-download__feature-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 30px auto;
  border-radius: 10px;
}

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

.page-download__faq-item {
  background-color: #11271B; /* Card BG color */
  border-radius: 8px;
  margin-bottom: 15px;
  border: 1px solid #2E7A4E;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  color: #F2FFF6;
  font-weight: bold;
  font-size: 1.1rem;
  list-style: none; /* remove default marker for summary */
}

.page-download__faq-question::-webkit-details-marker {
  display: none; /* remove default marker for webkit browsers */
}

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

.page-download__faq-toggle {
  font-size: 1.5rem;
  margin-left: 15px;
  color: #57E38D;
}

.page-download__faq-answer {
  padding: 0 20px 20px 20px;
  color: #A7D9B8;
  font-size: 0.95rem;
}

/* -------------------------------------------------- */
/* Responsive Styles */
/* -------------------------------------------------- */
@media (max-width: 768px) {
  .page-download {
    font-size: 15px;
  }

  .page-download__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-download__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

  .page-download__description {
    font-size: 1rem;
    padding: 0 15px;
  }

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

  .page-download__btn-primary,
  .page-download__btn-secondary,
  .page-download__btn-text {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
  }

  .page-download__section {
    padding: 40px 0;
  }

  .page-download__container {
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-download__section-title {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
    margin-bottom: 30px;
  }

  .page-download__sub-title {
    font-size: clamp(1.2rem, 6vw, 1.6rem);
    margin-top: 30px;
    margin-bottom: 15px;
  }

  .page-download__guide-step {
    flex-direction: column;
    padding: 20px;
  }

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

  .page-download__qr-code-wrapper {
    padding: 15px;
  }

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

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

  .page-download__faq-toggle {
    font-size: 1.2rem;
  }
}