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

:root {
  --color-primary: #11A84E;
  --color-secondary: #22C768;
  --color-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --color-card-bg: #11271B;
  --color-background: #08160F;
  --color-text-main: #F2FFF6;
  --color-text-secondary: #A7D9B8;
  --color-border: #2E7A4E;
  --color-glow: #57E38D;
  --color-gold: #F2C14E;
  --color-divider: #1E3A2A;
  --color-deep-green: #0A4B2C;
}

.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-main); /* Default text color for dark background */
  background-color: var(--color-background); /* Overall page background */
}

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

.page-download__section-bg {
  background-color: var(--color-background);
  padding: 60px 0;
}

.page-download__section-card-bg {
  background-color: var(--color-card-bg);
  padding: 60px 0;
}

.page-download__section-title {
  font-size: clamp(1.8rem, 2.5vw, 2.5rem); /* Responsive font size for H2 */
  color: var(--color-gold);
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

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

/* Hero Section */
.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* body đã xử lý padding-top, đây là phần trang trí */
  overflow: hidden;
  background: var(--color-background);
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 30px;
  display: flex;
  justify-content: center;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 30px rgba(87, 227, 141, 0.4);
}

.page-download__hero-content {
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
}

.page-download__main-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem); /* Responsive font size for H1 */
  color: var(--color-text-main);
  margin-bottom: 20px;
  line-height: 1.2;
  font-weight: bold;
}

.page-download__hero-description {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
}

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

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

.page-download__btn-primary {
  background: var(--color-button-gradient);
  color: var(--color-text-main);
  border: 2px solid var(--color-primary);
}

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(87, 227, 141, 0.5);
}

.page-download__btn-secondary {
  background: var(--color-card-bg);
  color: var(--color-gold);
  border: 2px solid var(--color-border);
}

.page-download__btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(46, 122, 78, 0.5);
}

/* Why Download Section */
.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__feature-item {
  background-color: var(--color-card-bg);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-divider);
  transition: transform 0.3s ease;
}

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

.page-download__feature-title {
  font-size: 1.4rem;
  color: var(--color-gold);
  margin-bottom: 15px;
  font-weight: bold;
}

.page-download__feature-text {
  font-size: 1rem;
  color: var(--color-text-secondary);
}

.page-download__feature-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 60px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(87, 227, 141, 0.3);
}

/* How to Install Section */
.page-download__installation-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 40px;
}

.page-download__installation-card {
  background-color: var(--color-card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-divider);
}

.page-download__card-title {
  font-size: 1.6rem;
  color: var(--color-gold);
  margin-bottom: 25px;
  text-align: center;
  font-weight: bold;
}

.page-download__qr-code-wrapper {
  text-align: center;
  margin-bottom: 25px;
}

.page-download__qr-code {
  width: 200px;
  height: 200px;
  border: 5px solid var(--color-primary);
  border-radius: 8px;
  background-color: #fff;
}

.page-download__step-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-download__step-list li {
  color: var(--color-text-main);
  margin-bottom: 15px;
  padding-left: 25px;
  position: relative;
}

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

.page-download__step-list li strong {
  color: var(--color-primary);
}

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

.page-download__system-requirements {
  margin-top: 60px;
  background-color: var(--color-deep-green);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.page-download__sub-title {
  font-size: 1.5rem;
  color: var(--color-gold);
  margin-bottom: 20px;
  text-align: center;
  font-weight: bold;
}

.page-download__requirements-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.page-download__requirements-list li {
  background-color: rgba(0,0,0,0.2);
  color: var(--color-text-secondary);
  padding: 10px 20px;
  border-radius: 6px;
  border: 1px solid var(--color-divider);
}

.page-download__guide-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 60px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(87, 227, 141, 0.3);
}

/* App Features Section */
.page-download__features-grid-large {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__feature-card {
  background-color: var(--color-background);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-divider);
  transition: transform 0.3s ease;
}

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

.page-download__feature-card .page-download__card-title {
  color: var(--color-primary);
}

.page-download__feature-card .page-download__card-text {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.page-download__features-showcase-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 60px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(87, 227, 141, 0.3);
}

.page-download__feature-card a {
  color: var(--color-gold);
  text-decoration: underline;
  transition: color 0.3s ease;
}

.page-download__feature-card a:hover {
  color: var(--color-glow);
}

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

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

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--color-text-main);
  background-color: var(--color-deep-green);
  border-bottom: 1px solid var(--color-divider);
  list-style: none;
}

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

.page-download__faq-item[open] .page-download__faq-question {
  border-bottom: 1px solid var(--color-divider);
}

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

.page-download__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
  color: var(--color-gold);
  transition: transform 0.3s ease;
}

.page-download__faq-item[open] .page-download__faq-toggle {
  transform: rotate(45deg); /* Change + to X or similar */
}

.page-download__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: var(--color-text-secondary);
}

.page-download__faq-answer p {
  margin: 0;
  color: var(--color-text-secondary);
}

.page-download__faq-answer a {
  color: var(--color-gold);
  text-decoration: underline;
}

.page-download__faq-answer a:hover {
  color: var(--color-glow);
}

/* Final CTA Section */
.page-download__cta-final {
  text-align: center;
}

.page-download__cta-content-wrapper {
  padding: 60px 20px;
}

.page-download__cta-final .page-download__section-title {
  color: var(--color-gold);
}

.page-download__cta-final .page-download__section-description {
  color: var(--color-text-secondary);
  margin-bottom: 40px;
}

.page-download__cta-register-prompt {
  margin-top: 30px;
  font-size: 1.1rem;
  color: var(--color-text-secondary);
}

.page-download__text-link {
  color: var(--color-gold);
  text-decoration: underline;
  font-weight: bold;
  transition: color 0.3s ease;
}

.page-download__text-link:hover {
  color: var(--color-glow);
}

.page-download__cta-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 60px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(87, 227, 141, 0.3);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-download__installation-steps {
    grid-template-columns: 1fr;
  }
  .page-download__hero-image-wrapper {
    margin-bottom: 20px;
  }
}

@media (max-width: 768px) {
  .page-download__container {
    padding: 0 15px;
  }
  .page-download__section-bg, .page-download__section-card-bg {
    padding: 40px 0;
  }
  .page-download__section-description {
    margin-bottom: 30px;
  }

  /* Images, Videos, Buttons must be responsive */
  .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__why-download,
  .page-download__how-to-install,
  .page-download__app-features,
  .page-download__faq-section,
  .page-download__cta-final,
  .page-download__hero-image-wrapper,
  .page-download__cta-buttons,
  .page-download__installation-card,
  .page-download__features-grid,
  .page-download__features-grid-large,
  .page-download__faq-list,
  .page-download__system-requirements {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

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

  .page-download__btn-primary,
  .page-download__btn-secondary,
  .page-download a[class*="button"],
  .page-download a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px; /* Adjust padding for smaller screens */
  }

  .page-download__cta-buttons {
    flex-direction: column; /* Stack buttons vertically on mobile */
    gap: 15px;
  }

  .page-download__installation-steps {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .page-download__qr-code {
    width: 150px;
    height: 150px;
  }

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

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

  .page-download__faq-answer {
    padding: 15px 20px;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  .page-download__main-title {
    font-size: 2rem;
  }
  .page-download__hero-description {
    font-size: 1rem;
  }
  .page-download__section-title {
    font-size: 1.6rem;
  }
  .page-download__qr-code {
    width: 120px;
    height: 120px;
  }
}