/* style/download.css */

:root {
  --page-download-primary-color: #11A84E;
  --page-download-secondary-color: #22C768;
  --page-download-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --page-download-card-bg: #11271B;
  --page-download-bg: #08160F;
  --page-download-text-main: #F2FFF6;
  --page-download-text-secondary: #A7D9B8;
  --page-download-border-color: #2E7A4E;
  --page-download-glow-color: #57E38D;
  --page-download-gold-color: #F2C14E;
  --page-download-divider-color: #1E3A2A;
  --page-download-deep-green: #0A4B2C;
  --page-download-light-text: #ffffff;
  --page-download-dark-text: #333333;
  --page-download-white-bg: #ffffff;
  --page-download-light-grey-bg: #f5f5f5;
}

.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--page-download-text-main);
  background-color: var(--page-download-bg);
}

.page-download__dark-section {
  background-color: var(--page-download-bg);
  color: var(--page-download-text-main);
}

.page-download__light-bg {
  background-color: var(--page-download-white-bg);
  color: var(--page-download-dark-text);
}

.page-download__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  box-sizing: border-box;
}

.page-download__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* body handles --header-offset, this is a small decorative top padding */
  text-align: center;
  overflow: hidden;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-height: 700px;
  overflow: hidden;
  position: relative;
}

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

.page-download__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 40px 20px;
  box-sizing: border-box;
  background: rgba(8, 22, 15, 0.85); /* Slightly darker background for text readability */
  border-radius: 10px;
  margin-top: -100px; /* Overlap slightly with image for visual effect, but not cover text */
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-download__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--page-download-text-main);
  margin-bottom: 20px;
  max-width: 90%;
  margin-left: auto;
  margin-right: auto;
}

.page-download__description {
  font-size: 1.1em;
  color: var(--page-download-text-secondary);
  margin-bottom: 30px;
}

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

.page-download__cta-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;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

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

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(42, 209, 111, 0.4);
}

.page-download__btn-secondary {
  background: var(--page-download-white-bg);
  color: var(--page-download-primary-color);
  border: 2px solid var(--page-download-primary-color);
}

.page-download__btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(17, 168, 78, 0.2);
}

.page-download__section-title {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: inherit;
}

.page-download__text-block {
  font-size: 1.1em;
  line-height: 1.8;
  margin-bottom: 20px;
  text-align: justify;
}

.page-download__benefits-section {
  padding: 60px 0;
}

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

.page-download__benefit-card {
  background-color: var(--page-download-white-bg);
  color: var(--page-download-dark-text);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
  border: 1px solid var(--page-download-border-color);
}

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

.page-download__benefit-icon {
  width: 200px; /* Minimum size */
  height: auto;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__card-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--page-download-primary-color);
}

.page-download__card-text {
  font-size: 1em;
  line-height: 1.7;
  color: var(--page-download-dark-text);
}

.page-download__guide-section {
  padding: 60px 0;
}

.page-download__platform-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 40px;
}

.page-download__android-guide, .page-download__ios-guide {
  background-color: var(--page-download-card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  color: var(--page-download-text-main);
  border: 1px solid var(--page-download-border-color);
}

.page-download__sub-section-title {
  font-size: 2em;
  font-weight: bold;
  color: var(--page-download-gold-color);
  margin-bottom: 30px;
  text-align: center;
}

.page-download__guide-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  margin-bottom: 30px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-download__guide-list {
  list-style-type: none;
  padding: 0;
}

.page-download__guide-list li {
  margin-bottom: 25px;
  position: relative;
  padding-left: 40px;
}

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

.page-download__guide-list li::before {
  content: counter(step-counter);
  counter-increment: step-counter;
  position: absolute;
  left: 0;
  top: 0;
  background: var(--page-download-primary-color);
  color: var(--page-download-light-text);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.9em;
}

.page-download__list-title {
  font-size: 1.3em;
  font-weight: bold;
  color: var(--page-download-text-main);
  margin-bottom: 5px;
}

.page-download__guide-list p {
  color: var(--page-download-text-secondary);
  font-size: 1em;
}

.page-download__installation-login {
  padding: 60px 0;
}

.page-download__login-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__login-step-card {
  background-color: var(--page-download-white-bg);
  color: var(--page-download-dark-text);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  border: 1px solid var(--page-download-border-color);
}

.page-download__step-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  margin-bottom: 25px;
}

.page-download__login-button, .page-download__register-button {
  margin-top: 20px;
}

.page-download__security-privacy {
  padding: 60px 0;
}

.page-download__security-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 30px;
}

.page-download__security-list li {
  background-color: var(--page-download-card-bg);
  padding: 25px;
  border-radius: 10px;
  border-left: 5px solid var(--page-download-primary-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.page-download__list-item-title {
  font-size: 1.4em;
  font-weight: bold;
  color: var(--page-download-gold-color);
  margin-bottom: 10px;
}

.page-download__security-list p {
  color: var(--page-download-text-secondary);
}

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

.page-download__troubleshooting-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__trouble-card {
  background-color: var(--page-download-white-bg);
  color: var(--page-download-dark-text);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--page-download-border-color);
}

.page-download__trouble-card .page-download__card-title {
  color: var(--page-download-deep-green);
  margin-bottom: 15px;
}

.page-download__solution-list {
  list-style: disc;
  margin-left: 20px;
  color: var(--page-download-dark-text);
}

.page-download__solution-list li {
  margin-bottom: 8px;
  font-size: 0.95em;
}

.page-download__contact-support {
  text-align: center;
  margin-top: 40px;
  font-size: 1.1em;
}

.page-download__contact-support a {
  color: var(--page-download-primary-color);
  text-decoration: underline;
  font-weight: bold;
}

.page-download__contact-support a:hover {
  color: var(--page-download-secondary-color);
}

.page-download__faq-section {
  padding: 60px 0;
}

.page-download__faq-list {
  margin-top: 40px;
}

.page-download__faq-item {
  background-color: var(--page-download-card-bg);
  border: 1px solid var(--page-download-divider-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  color: var(--page-download-text-main);
  cursor: pointer;
  background-color: var(--page-download-deep-green);
  transition: background-color 0.3s ease;
  user-select: none;
}

.page-download__faq-question:hover {
  background-color: var(--page-download-primary-color);
}

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

.page-download__faq-item summary {
  list-style: none;
}

.page-download__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--page-download-glow-color);
}

.page-download__faq-item[open] .page-download__faq-toggle {
  content: '−';
}

.page-download__faq-answer {
  padding: 15px 25px 20px;
  font-size: 1.05em;
  color: var(--page-download-text-secondary);
  line-height: 1.7;
  background-color: var(--page-download-card-bg);
}

.page-download__cta-footer {
  padding: 80px 0;
  text-align: center;
}

.page-download__cta-content {
  background-color: var(--page-download-white-bg);
  color: var(--page-download-dark-text);
  padding: 50px;
  border-radius: 15px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border: 2px solid var(--page-download-primary-color);
}

.page-download__cta-content .page-download__section-title {
  color: var(--page-download-primary-color);
}

.page-download__cta-content .page-download__text-block {
  color: var(--page-download-dark-text);
  margin-bottom: 40px;
}

/* --- Responsive Styles --- */

/* Tablet */
@media (max-width: 1024px) {
  .page-download__hero-content {
    margin-top: -50px;
    padding: 30px;
  }

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

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

  .page-download__section-title {
    font-size: 2em;
  }

  .page-download__benefits-grid,
  .page-download__platform-guide,
  .page-download__login-steps,
  .page-download__security-list,
  .page-download__troubleshooting-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
  }

  .page-download__login-steps {
    grid-template-columns: 1fr;
  }

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

/* Mobile */
@media (max-width: 768px) {
  .page-download {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-download__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-download__hero-content {
    margin-top: -30px;
    padding: 20px;
  }

  .page-download__main-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }

  .page-download__description {
    font-size: 0.95em;
    margin-bottom: 25px;
  }

  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
  }

  .page-download__cta-button {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-download__container {
    padding: 30px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

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

  .page-download__text-block {
    font-size: 1em;
  }

  .page-download__benefits-grid,
  .page-download__platform-guide,
  .page-download__login-steps,
  .page-download__security-list,
  .page-download__troubleshooting-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-download__platform-guide {
    gap: 30px;
  }

  .page-download__sub-section-title {
    font-size: 1.5em;
  }

  .page-download__guide-list li {
    padding-left: 35px;
  }

  .page-download__guide-list li::before {
    width: 28px;
    height: 28px;
    font-size: 0.85em;
  }

  .page-download__card-title {
    font-size: 1.3em;
  }

  .page-download__faq-question {
    padding: 15px 20px;
    font-size: 1.1em;
  }

  .page-download__faq-toggle {
    font-size: 1.3em;
  }

  .page-download__faq-answer {
    padding: 10px 20px 15px;
    font-size: 0.95em;
  }

  .page-download__cta-footer {
    padding: 50px 0;
  }

  .page-download__cta-content {
    padding: 30px;
  }

  /* Image responsive for mobile */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* Container responsive for mobile */
  .page-download__section,
  .page-download__card,
  .page-download__container,
  .page-download__hero-section,
  .page-download__benefits-section,
  .page-download__guide-section,
  .page-download__installation-login,
  .page-download__security-privacy,
  .page-download__troubleshooting,
  .page-download__faq-section,
  .page-download__cta-footer,
  .page-download__benefits-grid,
  .page-download__platform-guide,
  .page-download__login-steps,
  .page-download__security-list,
  .page-download__troubleshooting-grid,
  .page-download__faq-list,
  .page-download__cta-buttons,
  .page-download__button-group,
  .page-download__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden !important;
  }

  .page-download__hero-section,
  .page-download__hero-image-wrapper {
    padding-left: 0;
    padding-right: 0;
  }

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