/* style/download-center.css */

/* Biến CSS cho màu sắc */
:root {
  --page-download-center-primary-color: #0A1931;
  --page-download-center-secondary-color: #FFD700;
  --page-download-center-text-light: #FFFFFF;
  --page-download-center-text-dark: #333333;
  --page-download-center-background-light: #F8F8F8;
  --page-download-center-background-dark: #1A2E4B;
  --page-download-center-border-color: #3C4B61;
}

.page-download-center {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--page-download-center-text-dark);
  background-color: var(--page-download-center-background-light);
}

.page-download-center h1, .page-download-center h2, .page-download-center h3, .page-download-center h4 {
  color: var(--page-download-center-primary-color);
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-download-center h1 {
  font-size: 3.2em;
  text-align: center;
  color: var(--page-download-center-text-light);
}

.page-download-center h2 {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 30px;
}

.page-download-center h3 {
  font-size: 1.8em;
  margin-top: 20px;
}

.page-download-center p {
  margin-bottom: 15px;
  font-size: 1.1em;
}

.page-download-center__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-download-center__section {
  padding: 60px 0;
  text-align: center;
}

.page-download-center__section:nth-of-type(even) {
  background-color: var(--page-download-center-background-dark);
  color: var(--page-download-center-text-light);
}

.page-download-center__section:nth-of-type(even) h2, .page-download-center__section:nth-of-type(even) h3 {
  color: var(--page-download-center-secondary-color);
}

.page-download-center__hero {
  position: relative;
  background-color: var(--page-download-center-primary-color);
  color: var(--page-download-center-text-light);
  padding: 100px 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 500px;
}

.page-download-center__hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--page-download-center-primary-color) 0%, rgba(10, 25, 49, 0.7) 70%, var(--page-download-center-secondary-color) 100%);
  opacity: 0.8;
  z-index: 1;
}

.page-download-center__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.page-download-center__hero .page-download-center__container {
  position: relative;
  z-index: 2;
}

.page-download-center__hero-subtitle {
  font-size: 1.5em;
  margin-top: 20px;
  margin-bottom: 40px;
  color: var(--page-download-center-text-light);
}

.page-download-center__hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.page-download-center__button {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.page-download-center__button--primary {
  background-color: var(--page-download-center-secondary-color);
  color: var(--page-download-center-primary-color);
}

.page-download-center__button--primary:hover {
  background-color: #FFC107;
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(255, 215, 0, 0.3);
}

.page-download-center__button--secondary {
  background-color: transparent;
  color: var(--page-download-center-secondary-color);
  border: 2px solid var(--page-download-center-secondary-color);
}

.page-download-center__button--secondary:hover {
  background-color: var(--page-download-center-secondary-color);
  color: var(--page-download-center-primary-color);
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(255, 215, 0, 0.3);
}

.page-download-center__section-description {
  max-width: 800px;
  margin: 0 auto 40px auto;
  font-size: 1.15em;
}

.page-download-center__intro .page-download-center__section-description {
  color: var(--page-download-center-text-dark);
}

.page-download-center__section:nth-of-type(even) .page-download-center__section-description {
  color: var(--page-download-center-text-light);
}

.page-download-center__features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download-center__feature-item {
  background-color: #FFFFFF;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
  border-top: 5px solid var(--page-download-center-secondary-color);
}

.page-download-center__feature-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.page-download-center__feature-icon {
  width: 70px;
  height: 70px;
  margin-bottom: 20px;
  filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.2));
}

.page-download-center__feature-item h3 {
  color: var(--page-download-center-primary-color);
  font-size: 1.5em;
  margin-bottom: 10px;
}

.page-download-center__feature-item p {
  font-size: 1em;
  color: var(--page-download-center-text-dark);
}

.page-download-center__download-options {
  background-color: var(--page-download-center-background-dark);
  color: var(--page-download-center-text-light);
}

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

.page-download-center__option-card {
  background-color: #2A3F5B;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download-center__option-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.page-download-center__option-image {
  width: 100%;
  max-width: 250px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 25px;
  border: 2px solid var(--page-download-center-secondary-color);
}

.page-download-center__option-card h3 {
  color: var(--page-download-center-secondary-color);
  font-size: 1.8em;
  margin-bottom: 15px;
}

.page-download-center__option-card p {
  color: var(--page-download-center-text-light);
  font-size: 1.05em;
  margin-bottom: 25px;
  flex-grow: 1;
}

.page-download-center__option-card .page-download-center__button {
  width: fit-content;
  margin-top: auto;
  background-color: var(--page-download-center-secondary-color);
  color: var(--page-download-center-primary-color);
}

.page-download-center__option-card .page-download-center__button:hover {
  background-color: #FFC107;
}

.page-download-center__installation-guide {
  background-color: var(--page-download-center-background-light);
  color: var(--page-download-center-text-dark);
}

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

.page-download-center__steps li {
  background-color: #FFFFFF;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
  border-left: 5px solid var(--page-download-center-primary-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download-center__steps li:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.page-download-center__step-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 20px;
  filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.1));
}

.page-download-center__steps h4 {
  color: var(--page-download-center-primary-color);
  font-size: 1.4em;
  margin-bottom: 10px;
}

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

.page-download-center__note {
  margin-top: 40px;
  font-style: italic;
  color: #666666;
  font-size: 1.1em;
}

.page-download-center__faq {
  background-color: var(--page-download-center-background-dark);
  color: var(--page-download-center-text-light);
}

.page-download-center__faq-items {
  margin-top: 40px;
  text-align: left;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-download-center__faq-item {
  background-color: #2A3F5B;
  margin-bottom: 20px;
  padding: 25px 30px;
  border-radius: 10px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  border-left: 5px solid var(--page-download-center-secondary-color);
}

.page-download-center__faq-item h3 {
  color: var(--page-download-center-secondary-color);
  font-size: 1.6em;
  cursor: pointer;
  margin-bottom: 10px;
}

.page-download-center__faq-item p {
  color: var(--page-download-center-text-light);
  font-size: 1.05em;
  margin-top: 15px;
  display: none; /* Mặc định ẩn nội dung */
}

.page-download-center__faq-item.active p {
  display: block;
}

.page-download-center__call-to-action {
  position: relative;
  background-color: var(--page-download-center-primary-color);
  color: var(--page-download-center-text-light);
  padding: 80px 0;
  overflow: hidden;
}

.page-download-center__call-to-action::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--page-download-center-primary-color) 0%, rgba(10, 25, 49, 0.7) 70%, var(--page-download-center-secondary-color) 100%);
  opacity: 0.8;
  z-index: 1;
}

.page-download-center__cta-background-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.page-download-center__call-to-action .page-download-center__container {
  position: relative;
  z-index: 2;
}

.page-download-center__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .page-download-center h1 {
    font-size: 2.8em;
  }
  .page-download-center h2 {
    font-size: 2em;
  }
  .page-download-center__hero {
    padding: 80px 0;
    min-height: 400px;
  }
  .page-download-center__section {
    padding: 40px 0;
  }
  .page-download-center__features, .page-download-center__option-grid, .page-download-center__steps {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-download-center h1 {
    font-size: 2.2em;
  }
  .page-download-center h2 {
    font-size: 1.8em;
  }
  .page-download-center__hero-subtitle {
    font-size: 1.2em;
  }
  .page-download-center__button {
    padding: 12px 25px;
    font-size: 1em;
  }
  .page-download-center__hero-actions, .page-download-center__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-download-center__option-grid {
    grid-template-columns: 1fr;
  }
  .page-download-center__steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .page-download-center h1 {
    font-size: 1.8em;
  }
  .page-download-center h2 {
    font-size: 1.6em;
  }
  .page-download-center__hero-subtitle {
    font-size: 1em;
  }
  .page-download-center__button {
    width: 100%;
  }
  .page-download-center__feature-item, .page-download-center__option-card, .page-download-center__steps li, .page-download-center__faq-item {
    padding: 20px;
  }
}