@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
  --color-primary: #3669bb;
  --color-primary-content: #fff;
  --color-secondary: #274f91;
  --color-secondary-content: #fff;
  --color-accent: #bb8836;
  --color-base-100: #282d33;
  --color-base-200: #1e2024;
  --color-base-300: #17191c;
  --color-base-content: #fff;
  --color-base-highlight: #393e43;
  --color-bci-1: #bbbec4;
  --color-bci-2: #8d94a0;
  --color-success: #089b43;
  --color-error: #e77976;
  --color-warning: #f6d451;
  --radius-btn: .3rem;
  --radius-box: .75rem;
  --spacing: .25rem;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', ui-sans-serif, system-ui, sans-serif;
  background-color: var(--color-base-300);
  color: var(--color-base-content);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.sub-layout-container {
  width: 100%;
  max-width: 88rem;
  padding-inline: 1rem;
  margin-inline: auto;
}

@media (min-width: 768px) {
  .sub-layout-container {
    padding-inline: 1.5rem;
  }
}

.sub-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: var(--color-base-200);
  border-bottom: 1px solid var(--color-base-100);
}

.sub-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.75rem;
  gap: 1rem;
}

.sub-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  gap: 0.5rem;
  flex-shrink: 0;
}

.sub-logo svg {
  height: 2rem;
  width: auto;
}

.sub-logo:hover {
  opacity: 0.85;
}

.sub-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.sub-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-btn);
  font-size: 0.875rem;
  color: var(--color-bci-1);
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.sub-nav-link:hover {
  background-color: var(--color-base-100);
  color: var(--color-primary);
}

.sub-nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-base-highlight);
}

.sub-main {
  min-height: calc(100vh - 64px);
  padding-block: 2rem;
}

@media (min-width: 768px) {
  .sub-main {
    padding-block: 3rem;
  }
}

.sub-hero {
  background: linear-gradient(to right, var(--color-base-300), var(--color-base-100));
  border: 1px solid var(--color-base-100);
  border-radius: var(--radius-box);
  padding: 1.5rem 1rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .sub-hero {
    padding: 2.5rem 2rem;
  }
}

.sub-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -5%;
  width: 340px;
  height: 340px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 44 34'%3E%3Cpath fill='%233669BB' d='m40.34 8.854-4.344 5.916-12.227-1.229v.018l-11.647-1.255 3.765-5.284 14.518 1.702 4.625-6.547L12.93.007 0 18.07l3.037 6.724 4.345-5.916 12.227 1.229v-.018l11.647 1.255-3.783 5.284-14.509-1.72-4.626 6.565 22.11 2.168 12.93-18.063z'/%3E%3C/svg%3E") center / contain no-repeat;
  opacity: 0.06;
  pointer-events: none;
  transform: rotate(5deg);
}

.sub-hero-title {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-base-content);
  margin-bottom: 0.75rem;
  position: relative;
}

@media (min-width: 768px) {
  .sub-hero-title {
    font-size: 2.25rem;
  }
}

.sub-hero-subtitle {
  font-size: 0.9375rem;
  color: var(--color-bci-1);
  max-width: 52rem;
  line-height: 1.65;
}

.sub-content-area {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sub-section {
  background-color: var(--color-base-200);
  border: 1px solid var(--color-base-100);
  border-radius: var(--radius-box);
  padding: 1.5rem 1rem;
}

@media (min-width: 768px) {
  .sub-section {
    padding: 2rem 1.5rem;
  }
}

.sub-section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-base-content);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-base-100);
  line-height: 1.3;
}

@media (min-width: 768px) {
  .sub-section-title {
    font-size: 1.25rem;
  }
}

.qa-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.qa-item {
  border-bottom: 1px solid var(--color-base-100);
  padding-block: 1.25rem;
}

.qa-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.qa-item:first-child {
  padding-top: 0;
}

.qa-question {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-base-content);
  margin-bottom: 0.625rem;
  line-height: 1.4;
}

@media (min-width: 768px) {
  .qa-question {
    font-size: 1rem;
  }
}

.qa-answer {
  font-size: 0.875rem;
  color: var(--color-bci-1);
  line-height: 1.7;
}

.qa-answer a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, opacity 0.2s ease;
}

.qa-answer a:hover {
  border-bottom-color: var(--color-primary);
  opacity: 0.85;
}

.qa-answer strong {
  color: var(--color-base-content);
  font-weight: 600;
}

.info-sections {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.info-section-heading {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-base-content);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

@media (min-width: 768px) {
  .info-section-heading {
    font-size: 1.125rem;
  }
}

.info-body {
  font-size: 0.875rem;
  color: var(--color-bci-1);
  line-height: 1.75;
}

.info-body p {
  margin-bottom: 0.875rem;
}

.info-body p:last-child {
  margin-bottom: 0;
}

.info-body a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, opacity 0.2s ease;
}

.info-body a:hover {
  border-bottom-color: var(--color-primary);
  opacity: 0.85;
}

.info-body strong {
  color: var(--color-base-content);
  font-weight: 600;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 0.75rem;
}

@media (min-width: 640px) {
  .info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .info-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.info-card {
  background-color: var(--color-base-300);
  border: 1px solid var(--color-base-100);
  border-radius: var(--radius-box);
  padding: 1rem 1.125rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.info-card-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-bci-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-card-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-base-content);
}

.info-card-desc {
  font-size: 0.8125rem;
  color: var(--color-bci-1);
  line-height: 1.55;
  margin-top: 0.25rem;
}

.network-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.network-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3125rem 0.75rem;
  background-color: var(--color-base-100);
  border: 1px solid var(--color-base-highlight);
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-bci-1);
}

.highlight-box {
  background-color: var(--color-base-300);
  border: 1px solid var(--color-base-100);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  color: var(--color-bci-1);
  line-height: 1.65;
  margin-block: 1rem;
}

.highlight-box strong {
  color: var(--color-base-content);
}

.sub-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-btn);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.sub-btn-primary {
  background-color: var(--color-primary);
  color: var(--color-primary-content);
}

.sub-btn-primary:hover {
  background-color: color-mix(in oklab, var(--color-primary) 80%, transparent);
}

.sub-btn-secondary {
  background-color: transparent;
  color: var(--color-bci-1);
  border: 1px solid var(--color-base-100);
}

.sub-btn-secondary:hover {
  background-color: var(--color-base-100);
  color: var(--color-primary);
}

.sub-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1.5rem;
}

.sub-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--color-bci-2);
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.sub-breadcrumb a {
  color: var(--color-bci-2);
  text-decoration: none;
  transition: color 0.2s ease;
}

.sub-breadcrumb a:hover {
  color: var(--color-primary);
}

.sub-breadcrumb-sep {
  color: var(--color-base-highlight);
  font-size: 0.75rem;
}

.sub-breadcrumb-current {
  color: var(--color-bci-1);
  font-weight: 500;
}

.inline-link {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, opacity 0.2s ease;
}

.inline-link:hover {
  border-bottom-color: var(--color-primary);
  opacity: 0.85;
}

.sub-divider {
  height: 1px;
  background-color: var(--color-base-100);
  margin-block: 1.5rem;
  border: none;
}

.sub-footer {
  background-color: var(--color-base-200);
  border-top: 1px solid var(--color-base-100);
  padding-block: 1.75rem;
  margin-top: 3rem;
}

.sub-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 640px) {
  .sub-footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.sub-footer-text {
  font-size: 0.8125rem;
  color: var(--color-bci-2);
  line-height: 1.5;
}

.sub-footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

@media (min-width: 640px) {
  .sub-footer-links {
    justify-content: flex-end;
  }
}

.sub-footer-link {
  font-size: 0.8125rem;
  color: var(--color-bci-2);
  text-decoration: none;
  transition: color 0.2s ease;
}

.sub-footer-link:hover {
  color: var(--color-primary);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  background-color: var(--color-base-highlight);
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-bci-1);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.tag-primary {
  background-color: color-mix(in oklab, var(--color-primary) 20%, transparent);
  color: var(--color-primary);
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
}

.step-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-primary-content);
  font-size: 0.8125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.125rem;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-base-content);
  margin-bottom: 0.25rem;
  line-height: 1.35;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--color-bci-1);
  line-height: 1.65;
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
  margin-top: 0.5rem;
}

@media (min-width: 640px) {
  .feature-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-item {
  background-color: var(--color-base-300);
  border: 1px solid var(--color-base-100);
  border-radius: var(--radius-btn);
  padding: 0.875rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.feature-item-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-base-content);
}

.feature-item-desc {
  font-size: 0.8125rem;
  color: var(--color-bci-1);
  line-height: 1.6;
}

.related-links-bar {
  background-color: var(--color-base-200);
  border: 1px solid var(--color-base-100);
  border-radius: var(--radius-box);
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.related-links-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-bci-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.related-links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 1rem;
  list-style: none;
}

.related-links-list li a {
  font-size: 0.875rem;
  color: var(--color-primary);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.related-links-list li a:hover {
  opacity: 0.8;
}

.page-bottom-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  padding-block: 2rem;
  border-top: 1px solid var(--color-base-100);
  margin-top: 2rem;
}

@media (min-width: 640px) {
  .page-bottom-nav {
    justify-content: space-between;
  }
}