:root {
  color-scheme: dark;
  --doc-line: color-mix(in srgb, var(--muted, #9db0c6) 24%, transparent);
  --doc-soft: color-mix(in srgb, var(--accent, #e6a23c) 9%, transparent);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  min-width: 320px;
  min-height: 100vh;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

::selection {
  background: color-mix(in srgb, var(--accent, #e6a23c) 32%, transparent);
  color: var(--text, #f4efe2);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--doc-line);
  background: color-mix(in srgb, var(--bg, #0e1728) 90%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.site-header__inner {
  display: flex;
  min-height: 64px;
  max-width: 920px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand-lockup,
.product-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--text, #f4efe2);
  font-size: 14px;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
}

.brand-lockup img {
  width: 28px;
  height: 28px;
}

.brand-lockup__degree,
.product-link {
  color: var(--accent, #e6a23c);
}

.product-link {
  min-height: 40px;
  padding: 0 10px;
  border-radius: 6px;
  transition: background-color 160ms ease, color 160ms ease;
}

.product-link:hover {
  background: var(--doc-soft);
  text-decoration: none;
}

.container {
  width: min(100%, 780px);
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.app-icon {
  width: 64px;
  height: 64px;
  border: 1px solid var(--doc-line);
  border-radius: 8px;
  box-shadow: 0 18px 50px -28px color-mix(in srgb, var(--accent, #e6a23c) 50%, transparent);
}

h1,
h2,
h3,
p,
li,
a,
strong {
  letter-spacing: 0;
}

h1 {
  max-width: 680px;
  margin-top: 0;
  font-size: clamp(34px, 7vw, 48px);
  line-height: 1.08;
}

.updated,
.sub {
  max-width: 640px;
  margin-bottom: 44px;
  font-size: 15px;
  line-height: 1.65;
}

h2 {
  margin-top: 42px;
  padding-top: 24px;
  border-top: 1px solid var(--doc-line);
  font-size: 20px;
  line-height: 1.3;
}

p,
li {
  font-size: 15px;
  line-height: 1.75;
}

strong {
  color: var(--text, #f4efe2);
}

a {
  text-underline-offset: 3px;
}

a:focus-visible {
  border-radius: 3px;
  outline: 2px solid var(--accent, #e6a23c);
  outline-offset: 3px;
}

.contact {
  margin-top: 48px;
  padding: 24px;
  border: 1px solid var(--doc-line);
  border-radius: 8px;
  background: var(--doc-soft);
}

.contact h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: filter 160ms ease, transform 160ms ease;
}

.btn:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

@media (max-width: 560px) {
  .site-header__inner,
  .container {
    padding-right: 18px;
    padding-left: 18px;
  }

  .product-link {
    font-size: 13px;
  }

  .container {
    padding-top: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}