.page-download {
  font-family: 'Arial', sans-serif;
  background-color: #08160F; /* Nền chính */
  color: #F2FFF6; /* Màu chữ chính */
  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: 60px 0;
  padding-top: 10px; /* Nhỏ hơn để body padding-top xử lý */
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, #0A4B2C 0%, #08160F 100%); /* Deep Green to Background */
}

.page-download__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.3;
  overflow: hidden;
}

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

.page-download__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 40px 20px;
  background: rgba(8, 22, 15, 0.7); /* Slightly transparent background for text readability */
  border-radius: 10px;
}

.page-download__main-title {
  font-size: clamp(2em, 4vw, 3.5em);
  color: #F2C14E; /* Gold */
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

.page-download__description {
  font-size: 1.1em;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%; /* For responsive buttons */
  white-space: normal;
  word-wrap: break-word;
}

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

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(87, 227, 141, 0.4);
}

.page-download__btn-secondary {
  background: #11271B; /* Card BG */
  color: #57E38D; /* Glow */
  border: 2px solid #2E7A4E; /* Border */
}

.page-download__btn-secondary:hover {
  background: #22C768; /* Auxiliary */
  color: #11271B; /* Card BG */
  border-color: #22C768;
  transform: translateY(-3px);
}

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

.page-download__text-block {
  font-size: 1.05em;
  color: #A7D9B8; /* Text Secondary */
  text-align: center;
  max-width: 800px;
  margin: 0 auto 30px auto;
}

.page-download__why-download,
.page-download__app-features,
.page-download__exclusive-offers,
.page-download__final-cta {
  padding: 80px 0;
  background-color: #08160F; /* Background */
  color: #F2FFF6; /* Text Main */
}

.page-download__download-guide,
.page-download__security-info,
.page-download__faq-section {
  padding: 80px 0;
  background-color: #11271B; /* Card BG */
  color: #F2FFF6; /* Text Main */
}

.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__feature-item {
  background: rgba(17, 39, 27, 0.8); /* Slightly lighter than Card BG */
  border: 1px solid #2E7A4E; /* Border */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease;
}

.page-download__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-download__feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__feature-title {
  font-size: 1.4em;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
  font-weight: bold;
}

.page-download__feature-description {
  font-size: 0.95em;
  color: #A7D9B8; /* Text Secondary */
}

.page-download__platform-tabs {
  margin-top: 40px;
}

.page-download__tab-header {
  display: flex;
  justify-content: center;
  margin-bottom: 30px;
  border-bottom: 2px solid #2E7A4E;
}

.page-download__tab-button {
  background: transparent;
  border: none;
  padding: 15px 30px;
  font-size: 1.1em;
  color: #A7D9B8; /* Text Secondary */
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: bold;
  position: relative;
}

.page-download__tab-button::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: transparent;
  transition: background-color 0.3s ease;
}

.page-download__tab-button--active {
  color: #F2C14E; /* Gold */
}

.page-download__tab-button--active::after {
  background-color: #F2C14E; /* Gold */
}

.page-download__tab-button:hover {
  color: #F2C14E;
}

.page-download__tab-content {
  display: none;
  padding: 30px 0;
}

.page-download__tab-content--active {
  display: block;
}

.page-download__step-title {
  font-size: 1.6em;
  color: #F2C14E; /* Gold */
  margin-bottom: 25px;
  text-align: center;
}

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

.page-download__step-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 25px;
  background: #08160F; /* Background */
  border: 1px solid #1E3A2A; /* Divider */
  border-radius: 8px;
  padding: 20px;
}

.page-download__step-number {
  background-color: #22C768; /* Auxiliary */
  color: #08160F; /* Background */
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 1.1em;
  flex-shrink: 0;
  margin-right: 15px;
}

.page-download__step-item p {
  margin: 0;
  color: #A7D9B8; /* Text Secondary */
  text-align: left;
}

.page-download__step-item p strong {
  color: #F2FFF6; /* Text Main */
}

.page-download__btn-download-android,
.page-download__btn-download-ios {
  margin-top: 30px;
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.page-download__features-grid--extended {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.page-download__feature-card {
  background: #11271B; /* Card BG */
  border: 1px solid #2E7A4E; /* Border */
  border-radius: 10px;
  overflow: hidden;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

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

.page-download__feature-card-title {
  font-size: 1.5em;
  color: #F2C14E; /* Gold */
  margin: 20px 15px 10px 15px;
  font-weight: bold;
}

.page-download__feature-card-description {
  font-size: 0.95em;
  color: #A7D9B8; /* Text Secondary */
  padding: 0 15px 20px 15px;
}

.page-download__security-list {
  list-style: none;
  padding: 0;
  margin: 40px auto;
  max-width: 800px;
}

.page-download__security-item {
  background: #08160F; /* Background */
  border-left: 5px solid #22C768; /* Auxiliary */
  padding: 15px 20px;
  margin-bottom: 15px;
  border-radius: 5px;
  color: #F2FFF6; /* Text Main */
  font-size: 1.05em;
}

.page-download__offer-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__offer-card {
  background: #11271B; /* Card BG */
  border: 1px solid #2E7A4E; /* Border */
  border-radius: 10px;
  overflow: hidden;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download__offer-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.page-download__offer-card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.page-download__offer-card-title {
  font-size: 1.4em;
  color: #F2C14E; /* Gold */
  margin: 20px 15px 10px 15px;
  font-weight: bold;
}

.page-download__offer-card-description {
  font-size: 0.95em;
  color: #A7D9B8; /* Text Secondary */
  padding: 0 15px 20px 15px;
}

.page-download__cta-buttons--bottom {
  margin-top: 50px;
}

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

.page-download__faq-item {
  background: #08160F; /* Background */
  border: 1px solid #1E3A2A; /* Divider */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.15em;
  font-weight: bold;
  color: #F2FFF6; /* Text Main */
  cursor: pointer;
  background: #0A4B2C; /* Deep Green */
  border-bottom: 1px solid #1E3A2A; /* Divider */
  list-style: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

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

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

.page-download__faq-toggle {
  font-size: 1.5em;
  margin-left: 15px;
  color: #F2C14E; /* Gold */
}

.page-download__faq-item[open] .page-download__faq-question {
  border-bottom: 1px solid #2E7A4E; /* Border */
}

.page-download__faq-answer {
  padding: 20px;
  font-size: 1em;
  color: #A7D9B8; /* Text Secondary */
  text-align: left;
  background: #08160F; /* Background */
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-download__hero-content {
    padding: 30px 15px;
  }
  .page-download__section-title {
    margin-bottom: 30px;
  }
  .page-download__cta-buttons {
    gap: 15px;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section,
  .page-download__why-download,
  .page-download__download-guide,
  .page-download__app-features,
  .page-download__security-info,
  .page-download__exclusive-offers,
  .page-download__faq-section,
  .page-download__final-cta {
    padding: 40px 0;
  }

  .page-download__container {
    padding: 0 15px;
  }

  .page-download__main-title {
    font-size: 2.2em;
  }

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

  .page-download__cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100%;
    max-width: 300px !important;
    padding: 12px 20px;
    font-size: 1em;
  }

  .page-download__section-title {
    font-size: 1.8em;
  }

  .page-download__text-block {
    font-size: 0.95em;
  }

  .page-download__features-grid,
  .page-download__features-grid--extended,
  .page-download__offer-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .page-download__feature-icon {
    width: 60px;
    height: 60px;
  }

  .page-download__feature-title,
  .page-download__feature-card-title,
  .page-download__offer-card-title {
    font-size: 1.2em;
  }

  .page-download__tab-header {
    flex-direction: column;
    border-bottom: none;
  }

  .page-download__tab-button {
    border-bottom: 1px solid #2E7A4E;
    margin-bottom: 10px;
    padding: 10px 20px;
    font-size: 1em;
  }

  .page-download__tab-button--active::after {
    display: none;
  }

  .page-download__step-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 15px;
  }

  .page-download__step-number {
    margin-right: 0;
    margin-bottom: 10px;
  }

  .page-download__step-item p {
    text-align: center;
  }

  .page-download__security-item {
    font-size: 0.95em;
    padding: 12px 15px;
  }

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

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

  /* Force responsive images */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  /* Force responsive containers */
  .page-download__hero-section,
  .page-download__why-download .page-download__container,
  .page-download__download-guide .page-download__container,
  .page-download__app-features .page-download__container,
  .page-download__security-info .page-download__container,
  .page-download__exclusive-offers .page-download__container,
  .page-download__faq-section .page-download__container,
  .page-download__final-cta .page-download__container,
  .page-download__hero-image-wrapper,
  .page-download__hero-content,
  .page-download__cta-buttons,
  .page-download__features-grid,
  .page-download__feature-item,
  .page-download__feature-card,
  .page-download__offer-card,
  .page-download__platform-tabs,
  .page-download__tab-header,
  .page-download__tab-content,
  .page-download__step-list,
  .page-download__step-item,
  .page-download__security-list,
  .page-download__security-item,
  .page-download__offer-cards,
  .page-download__faq-list,
  .page-download__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden !important; /* Ensure no horizontal scroll */
  }

  .page-download__hero-section {
    padding-top: 10px !important;
  }

  /* Video specific responsive styles (if video was present) */
  .page-download video,
  .page-download__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__video-section,
  .page-download__video-container,
  .page-download__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  .page-download__video-section {
    padding-top: 10px !important;
  }
}

@media (max-width: 480px) {
  .page-download__main-title {
    font-size: 1.8em;
  }
  .page-download__section-title {
    font-size: 1.5em;
  }
}