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

/* Base styles for the page-download scope */
.page-download {
  font-family: Arial, sans-serif;
  color: var(--text-main); /* #F2FFF6 */
  background-color: var(--background-color); /* #08160F */
  line-height: 1.6;
}

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

.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 60px;
  background-color: var(--card-bg); /* #11271B */
  overflow: hidden;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-height: 70vh; /* Limit height to prevent image being too tall */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  min-height: 200px; /* Ensure minimum size */
}

.page-download__hero-content {
  text-align: center;
  max-width: 900px;
  padding: 0 20px;
}

.page-download__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem); /* Use clamp for H1 */
  font-weight: bold;
  color: var(--text-main); /* #F2FFF6 */
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-download__description {
  font-size: 1.1rem;
  color: var(--text-secondary); /* #A7D9B8 */
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-download__cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.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;
  min-width: 200px; /* Ensure buttons are not too small */
  max-width: 100%; /* Important for mobile responsiveness */
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

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

.page-download__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-download__btn-secondary {
  background: transparent;
  color: var(--text-main); /* #F2FFF6 */
  border: 2px solid var(--border-color); /* #2E7A4E */
}

.page-download__btn-secondary:hover {
  background: var(--border-color); /* #2E7A4E */
  color: #ffffff;
  transform: translateY(-2px);
}

.page-download__section {
  padding: 60px 0;
  background-color: var(--background-color); /* #08160F */
  color: var(--text-main); /* #F2FFF6 */
}

.page-download__section:nth-child(even) {
  background-color: var(--card-bg); /* Alternate background for readability */
}

.page-download__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: var(--gold); /* #F2C14E */
}

.page-download__content-area {
  max-width: 900px;
  margin: 0 auto 40px auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary); /* #A7D9B8 */
}

.page-download__content-area p {
  margin-bottom: 1em;
}

.page-download__content-area strong {
  color: var(--text-main); /* #F2FFF6 */
}

.page-download__image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 40px auto 0 auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  min-width: 200px; /* Enforce min width */
  min-height: 200px; /* Enforce min height */
}

.page-download__feature-list,
.page-download__step-list {
  list-style: none;
  padding: 0;
  margin: 30px 0;
}

.page-download__feature-list li,
.page-download__step-list li {
  background-color: var(--deep-green); /* #0A4B2C */
  margin-bottom: 15px;
  padding: 20px;
  border-radius: 8px;
  display: flex;
  align-items: flex-start;
  font-size: 1.05rem;
  color: var(--text-main); /* #F2FFF6 */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-download__feature-list li strong,
.page-download__step-list li strong {
  color: var(--gold); /* #F2C14E */
  margin-right: 10px;
  flex-shrink: 0;
}

.page-download__step-list li {
  counter-increment: step-counter;
}

.page-download__step-list li::before {
  content: "Bước " counter(step-counter) ": ";
  font-weight: bold;
  color: var(--gold); /* #F2C14E */
  margin-right: 10px;
  flex-shrink: 0;
}

.page-download__app-features .page-download__content-area {
  margin-bottom: 0;
}

.page-download__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  margin-top: 40px;
}

.page-download__feature-card {
  background-color: var(--card-bg); /* #11271B */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-download__feature-title {
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--text-main); /* #F2FFF6 */
  margin-bottom: 15px;
}

.page-download__feature-description {
  font-size: 1rem;
  color: var(--text-secondary); /* #A7D9B8 */
  line-height: 1.7;
}

/* FAQ Section */
.page-download__faq {
  padding-bottom: 80px;
}

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

.page-download__faq-item {
  background-color: var(--card-bg); /* #11271B */
  border-radius: 8px;
  margin-bottom: 15px;
  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 25px;
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--text-main); /* #F2FFF6 */
  cursor: pointer;
  background-color: var(--deep-green); /* #0A4B2C */
  border-bottom: 1px solid var(--divider-color); /* #1E3A2A */
  transition: background-color 0.3s ease;
}

.page-download__faq-question:hover {
  background-color: var(--border-color); /* #2E7A4E */
}

.page-download__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
  color: var(--gold); /* #F2C14E */
}

/* For <details> tag, hide default marker */
.page-download__faq-item summary {
  list-style: none;
}
.page-download__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-download__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: var(--text-secondary); /* #A7D9B8 */
  line-height: 1.7;
  background-color: var(--card-bg); /* #11271B */
}

/* Bottom CTA */
.page-download__cta-bottom {
  text-align: center;
  padding-top: 80px;
  padding-bottom: 80px;
  background-color: var(--card-bg); /* #11271B */
}

/* Responsive styles */
@media (max-width: 992px) {
  .page-download__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .page-download__section-title {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
  }

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

@media (max-width: 768px) {
  .page-download__hero-section {
    padding-bottom: 40px;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  .page-download__hero-image-wrapper {
    margin-bottom: 30px;
  }

  .page-download__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

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

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

  .page-download__btn-primary,
  .page-download__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

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

  .page-download__section-title {
    font-size: clamp(1.5rem, 5vw, 2rem);
    margin-bottom: 30px;
  }

  .page-download__content-area {
    font-size: 0.95rem;
    padding: 0 15px;
  }

  .page-download__feature-list li,
  .page-download__step-list li {
    padding: 15px;
    font-size: 0.95rem;
  }

  .page-download__feature-grid {
    grid-template-columns: 1fr;
    padding: 0 15px;
  }

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

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

  /* Mobile image, video, button adaptation */
  .page-download img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__hero-image-wrapper,
  .page-download__section,
  .page-download__card,
  .page-download__container,
  .page-download__cta-buttons,
  .page-download__feature-grid,
  .page-download__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  /* Specific containers that need padding on mobile */
  .page-download__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  .page-download__hero-section {
    padding-top: 10px !important; /* body already has padding-top */
  }
}