/* style/download.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */

:root {
  --page-download-primary-color: #26A9E0;
  --page-download-secondary-color: #FFFFFF;
  --page-download-text-dark: #333333;
  --page-download-text-light: #ffffff;
  --page-download-login-color: #EA7C07;
  --page-download-bg-light: #ffffff;
  --page-download-bg-dark: #26A9E0;
}

.page-download {
  font-family: 'Arial', sans-serif;
  color: var(--page-download-text-dark); /* Mặc định cho nền sáng */
  line-height: 1.6;
}

.page-download__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0; /* Chỉ 10px top padding, body đã có padding-top */
  text-align: center;
  overflow: hidden;
  background: var(--page-download-bg-dark);
  color: var(--page-download-text-light);
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
  margin-bottom: 20px;
}

.page-download__hero-content {
  max-width: 900px;
  padding: 0 20px;
  z-index: 1;
}

.page-download__main-title {
  color: var(--page-download-text-light);
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 15px;
  max-width: 100%;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.page-download__description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: var(--page-download-text-light);
}

.page-download__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: background-color 0.3s ease, transform 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-color: var(--page-download-primary-color);
  color: var(--page-download-text-light);
  border: 2px solid var(--page-download-primary-color);
}

.page-download__btn-primary:hover {
  background-color: #1e87c0;
  transform: translateY(-2px);
}

.page-download__btn-secondary {
  background-color: var(--page-download-login-color);
  color: var(--page-download-text-light);
  border: 2px solid var(--page-download-login-color);
}

.page-download__btn-secondary:hover {
  background-color: #c46200;
  transform: translateY(-2px);
}

.page-download__section-title {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  color: var(--page-download-primary-color);
}

.page-download__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: var(--page-download-text-dark);
}

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

.page-download__advantages-section {
  background-color: var(--page-download-bg-light);
  padding: 60px 0;
}

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

.page-download__feature-card {
  background: var(--page-download-bg-light);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease;
  color: var(--page-download-text-dark);
}

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

.page-download__feature-icon {
  width: 100%;
  height: auto;
  max-width: 250px;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__feature-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--page-download-primary-color);
}

.page-download__feature-text {
  font-size: 1em;
  color: var(--page-download-text-dark);
}

.page-download__how-to-download-section {
  background-color: var(--page-download-bg-dark);
  color: var(--page-download-text-light);
  padding: 60px 0;
}

.page-download__how-to-download-section .page-download__section-title {
  color: var(--page-download-text-light);
}

.page-download__how-to-download-section .page-download__section-description {
  color: var(--page-download-text-light);
}

.page-download__download-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  align-items: center;
}

.page-download__step-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 30px;
  text-align: left;
  color: var(--page-download-text-light);
  height: 100%; /* Đảm bảo chiều cao bằng nhau */
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-download__step-title {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 10px;
  color: var(--page-download-text-light);
}

.page-download__step-text {
  font-size: 1em;
  color: var(--page-download-text-light);
}

.page-download__step-image {
  width: 100%;
  height: auto;
  max-width: 500px;
  margin: 0 auto;
  display: block;
  border-radius: 12px;
}

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

.page-download__app-features-section {
  background-color: var(--page-download-bg-light);
  padding: 60px 0;
}

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

.page-download__feature-item {
  background: var(--page-download-bg-light);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  padding: 30px;
  color: var(--page-download-text-dark);
  height: 100%;
}

.page-download__item-title {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 10px;
  color: var(--page-download-primary-color);
}

.page-download__item-text {
  font-size: 1em;
  color: var(--page-download-text-dark);
}

.page-download__item-image {
  width: 100%;
  height: auto;
  max-width: 500px;
  margin: 0 auto;
  display: block;
  border-radius: 12px;
}

.page-download__benefits-section {
  background-color: var(--page-download-bg-light);
  padding: 60px 0;
}

.page-download__benefits-list {
  list-style: none;
  padding: 0;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: var(--page-download-text-dark);
}

.page-download__benefits-list li {
  margin-bottom: 15px;
  padding-left: 30px;
  position: relative;
  font-size: 1.1em;
}

.page-download__benefits-list li::before {
  content: '✅';
  position: absolute;
  left: 0;
  top: 0;
}

.page-download__security-section {
  background-color: var(--page-download-bg-dark);
  color: var(--page-download-text-light);
  padding: 60px 0;
}

.page-download__security-section .page-download__section-title {
  color: var(--page-download-text-light);
}

.page-download__security-section .page-download__section-description {
  color: var(--page-download-text-light);
}

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

.page-download__security-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  color: var(--page-download-text-light);
  height: 100%;
}

.page-download__security-icon {
  width: 100%;
  height: auto;
  max-width: 200px;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__faq-section {
  background-color: var(--page-download-bg-light);
  padding: 60px 0;
}

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

.page-download__faq-item {
  margin-bottom: 15px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  background: var(--page-download-bg-light);
  color: var(--page-download-text-dark);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-weight: bold;
  font-size: 1.1em;
  cursor: pointer;
  color: var(--page-download-primary-color);
}

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

.page-download__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 10px;
}

.page-download__faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 1em;
  color: var(--page-download-text-dark);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-download__faq-item[open] .page-download__faq-answer {
  max-height: 500px; /* Đủ lớn để chứa nội dung */
  padding-top: 10px;
}

.page-download__faq-item[open] .page-download__faq-question .page-download__faq-toggle {
  content: '−';
}

.page-download__cta-final-section {
  background-color: var(--page-download-bg-dark);
  color: var(--page-download-text-light);
  padding: 60px 0;
  text-align: center;
}

.page-download__cta-final-section .page-download__section-title {
  color: var(--page-download-text-light);
}

.page-download__cta-final-section .page-download__section-description {
  color: var(--page-download-text-light);
}

.page-download__cta-image {
  width: 100%;
  height: auto;
  max-width: 600px;
  margin: 40px auto 0 auto;
  display: block;
  border-radius: 12px;
}

.page-download__text-link {
  color: var(--page-download-login-color);
  text-decoration: underline;
}

.page-download__text-link:hover {
  color: #c46200;
}

/* --- Responsive Styles --- */

/* Desktop */
@media (min-width: 1024px) {
  .page-download__hero-section {
    padding: 10px 0 100px 0;
  }
  .page-download__main-title {
    font-size: 3.2em;
  }
  .page-download__section-title {
    font-size: 3em;
  }
}

/* Tablet */
@media (max-width: 1023px) and (min-width: 769px) {
  .page-download__main-title {
    font-size: 2.8em;
  }
  .page-download__section-title {
    font-size: 2.2em;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .page-download {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-download__hero-section {
    padding-top: 10px !important; /* body đã có padding-top, chỉ cần 10px trang trí */
    padding-bottom: 40px;
  }

  .page-download__main-title {
    font-size: 2em;
    margin-bottom: 10px;
  }

  .page-download__description {
    font-size: 1em;
    margin-bottom: 20px;
  }

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

  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-download__container,
  .page-download__advantages-section,
  .page-download__how-to-download-section,
  .page-download__app-features-section,
  .page-download__benefits-section,
  .page-download__security-section,
  .page-download__faq-section,
  .page-download__cta-final-section {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-download__section-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }

  .page-download__section-description {
    font-size: 1em;
    margin-bottom: 30px;
  }

  .page-download__hero-image,
  .page-download__feature-icon,
  .page-download__step-image,
  .page-download__item-image,
  .page-download__security-icon,
  .page-download__cta-image,
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__feature-card,
  .page-download__step-card,
  .page-download__feature-item,
  .page-download__security-item {
    padding: 20px;
  }

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

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

  .page-download__benefits-list li {
    font-size: 1em;
    padding-left: 25px;
  }
}

/* CSS cho details/summary để hoạt động như accordion */
.page-download__faq-item details > summary {
  list-style: none;
}
.page-download__faq-item details > summary::-webkit-details-marker {
  display: none;
}