.page-download {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --bg-color: #08160F;
  --card-bg-color: #11271B;
  --text-main-color: #F2FFF6;
  --text-secondary-color: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green-color: #0A4B2C;

  font-family: 'Arial', sans-serif;
  color: var(--text-main-color);
  background-color: var(--bg-color); /* Fallback, body handles main bg */
  line-height: 1.6;
}

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

/* Hero Section */
.page-download__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding-bottom: 60px; /* Space for content below image */
  padding-top: 10px; /* Small top padding, body handles header offset */
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-height: 70vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.7);
}

.page-download__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 40px 20px;
  margin-top: -150px; /* Pull content up over the image slightly */
  background: linear-gradient(180deg, rgba(8, 22, 15, 0.8) 0%, var(--bg-color) 100%);
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-download__main-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  color: var(--gold-color);
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

.page-download__hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary-color);
  margin-bottom: 30px;
}

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

.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: 180px;
  box-sizing: border-box;
}

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

.page-download__btn-primary:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(87, 227, 141, 0.4);
}

.page-download__btn-secondary {
  background-color: transparent;
  color: var(--glow-color);
  border: 2px solid var(--glow-color);
}

.page-download__btn-secondary:hover {
  background-color: var(--glow-color);
  color: var(--bg-color);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(87, 227, 141, 0.2);
}

/* General Section Styling */
.page-download__section {
  padding: 80px 0;
  border-top: 1px solid var(--divider-color);
}

.page-download__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--gold-color);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
  text-shadow: 0 0 8px rgba(87, 227, 141, 0.3);
}

.page-download__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--glow-color);
  border-radius: 2px;
}

.page-download__section-text {
  font-size: 1.1rem;
  color: var(--text-secondary-color);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
}

.page-download__subsection-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: var(--primary-color);
  margin-top: 50px;
  margin-bottom: 25px;
  text-align: center;
  font-weight: bold;
}

/* Feature List */
.page-download__feature-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__feature-item {
  background-color: var(--card-bg-color);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

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

.page-download__feature-item strong {
  color: var(--glow-color);
  font-size: 1.2rem;
  display: block;
  margin-bottom: 10px;
}

.page-download__feature-item {
  color: var(--text-secondary-color);
}

/* App Download Grid */
.page-download__app-download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin-top: 50px;
}

.page-download__app-platform-card {
  background-color: var(--card-bg-color);
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-download__platform-icon {
  width: 150px;
  height: auto;
  margin-bottom: 25px;
  filter: drop-shadow(0 0 10px var(--primary-color));
}

.page-download__app-platform-card .page-download__subsection-title {
  margin-top: 0;
  color: var(--glow-color);
}

.page-download__step-list {
  list-style: none;
  padding: 0;
  text-align: left;
  margin-bottom: 30px;
  color: var(--text-secondary-color);
}

.page-download__step-item {
  margin-bottom: 15px;
  position: relative;
  padding-left: 30px;
}

.page-download__step-item::before {
  content: attr(data-step);
  position: absolute;
  left: 0;
  top: 0;
  background-color: var(--primary-color);
  color: #fff;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: bold;
}

.page-download__step-item:nth-child(1)::before { content: '1'; }
.page-download__step-item:nth-child(2)::before { content: '2'; }
.page-download__step-item:nth-child(3)::before { content: '3'; }
.page-download__step-item:nth-child(4)::before { content: '4'; }
.page-download__step-item:nth-child(5)::before { content: '5'; }

.page-download__btn-block {
  width: 100%;
  margin-top: auto;
}

.page-download__note-list {
  list-style: none;
  padding: 0;
  max-width: 800px;
  margin: 50px auto 0 auto;
  color: var(--text-secondary-color);
}

.page-download__note-item {
  background-color: rgba(17, 168, 78, 0.1);
  padding: 15px 20px;
  margin-bottom: 15px;
  border-left: 4px solid var(--primary-color);
  border-radius: 5px;
}

/* Game Grid */
.page-download__game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__game-card {
  background-color: var(--card-bg-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.page-download__game-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-download__game-title {
  font-size: 1.5rem;
  color: var(--glow-color);
  margin: 20px 15px 10px 15px;
  text-align: center;
}

.page-download__game-description {
  font-size: 0.95rem;
  color: var(--text-secondary-color);
  padding: 0 15px 20px 15px;
  flex-grow: 1;
}

.page-download__game-card .page-download__btn-secondary {
  margin: 0 15px 20px 15px;
  width: calc(100% - 30px);
}

.page-download__cta-center {
  text-align: center;
  margin-top: 60px;
}

.page-download__btn-large {
  min-width: 250px;
  padding: 18px 40px;
  font-size: 1.2rem;
}

/* Promotion Cards */
.page-download__promotion-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__promotion-card {
  background-color: var(--card-bg-color);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.page-download__promotion-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-download__promotion-title {
  font-size: 1.4rem;
  color: var(--glow-color);
  margin: 20px 15px 10px 15px;
  text-align: center;
}

.page-download__promotion-description {
  font-size: 0.95rem;
  color: var(--text-secondary-color);
  padding: 0 15px 20px 15px;
  flex-grow: 1;
}

.page-download__promotion-card .page-download__btn-secondary {
  margin: 0 15px 20px 15px;
  width: calc(100% - 30px);
}

/* Security Section */
.page-download__security-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__security-item {
  background-color: var(--card-bg-color);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

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

.page-download__security-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 8px rgba(87, 227, 141, 0.4));
}

.page-download__security-item .page-download__subsection-title {
  color: var(--primary-color);
  margin-top: 0;
  margin-bottom: 15px;
}

.page-download__security-description {
  color: var(--text-secondary-color);
  font-size: 0.95rem;
}

/* FAQ Section */
.page-download__faq-list {
  max-width: 900px;
  margin: 50px auto 0 auto;
}

.page-download__faq-item {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--glow-color);
  cursor: pointer;
  background-color: rgba(17, 168, 78, 0.15);
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

.page-download__faq-question::-webkit-details-marker {
  display: none; /* For details/summary */
}

.page-download__faq-item[open] .page-download__faq-question {
  background-color: var(--primary-color);
  color: #fff;
}

.page-download__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: var(--text-secondary-color);
  line-height: 1.7;
}

.page-download__faq-answer p {
  margin: 0;
}

/* Final CTA Section */
.page-download__cta-final-section {
  padding: 80px 0;
  background: linear-gradient(90deg, var(--deep-green-color) 0%, var(--primary-color) 100%);
  text-align: center;
}

.page-download__cta-final-content {
  max-width: 900px;
}

.page-download__cta-final-content .page-download__section-title {
  color: #ffffff;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.page-download__cta-final-content .page-download__section-title::after {
  background-color: #ffffff;
}

.page-download__cta-final-content .page-download__section-text {
  color: #ffffff;
  margin-bottom: 40px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-download__hero-content {
    margin-top: -100px;
  }
}

@media (max-width: 768px) {
  .page-download__container {
    padding: 0 15px;
  }

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

  .page-download__hero-image {
    max-width: 100% !important;
    height: auto !important;
  }

  .page-download__hero-content {
    margin-top: -80px;
    padding: 30px 15px;
  }

  .page-download__main-title {
    font-size: 2rem;
  }

  .page-download__hero-description {
    font-size: 1rem;
  }

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

  .page-download__btn-primary,
  .page-download__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-download__section {
    padding: 60px 0;
  }

  .page-download__section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
  }

  .page-download__section-text {
    font-size: 0.95rem;
    margin-bottom: 40px;
  }

  .page-download__subsection-title {
    font-size: 1.3rem;
    margin-top: 40px;
    margin-bottom: 20px;
  }

  .page-download__feature-list,
  .page-download__app-download-grid,
  .page-download__game-grid,
  .page-download__promotion-cards,
  .page-download__security-features {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-download__game-image,
  .page-download__promotion-image {
    height: 180px;
  }

  .page-download__game-title,
  .page-download__promotion-title {
    font-size: 1.3rem;
  }

  .page-download__faq-question {
    font-size: 1rem;
    padding: 18px 20px;
  }

  .page-download__faq-answer {
    padding: 18px 20px;
    font-size: 0.95rem;
  }

  /* Ensure all images are 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__app-platform-card,
  .page-download__game-card,
  .page-download__promotion-card,
  .page-download__security-item,
  .page-download__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-download__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset */
  }
  
  .page-download__cta-buttons {
    flex-wrap: wrap !important;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .page-download__main-title {
    font-size: 1.8rem;
  }

  .page-download__section-title {
    font-size: 1.6rem;
  }

  .page-download__hero-content {
    margin-top: -60px;
  }
}