:root {
  color-scheme: light dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --background: #f6f8fa;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --text: #1f2328;
  --muted: #59636e;
  --border: #d8dee4;
  --accent: #0969da;
  --accent-soft: #ddf4ff;
  --shadow: 0 18px 48px rgba(31, 35, 40, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 0%, rgba(9, 105, 218, 0.12), transparent 30rem),
    var(--background);
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: var(--accent);
}

.shell {
  width: min(100% - 32px, 880px);
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  line-height: 1.15;
}

.brand span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.78rem;
}

.language-nav {
  display: flex;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.language-nav a {
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 650;
  text-decoration: none;
}

.language-nav a:hover,
.language-nav a:focus-visible {
  color: var(--text);
  background: var(--accent-soft);
  outline: none;
}

.policy {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  padding: clamp(30px, 7vw, 60px);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(140deg, var(--surface-strong), var(--accent-soft));
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.lead {
  max-width: 670px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.updated {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.summary-card {
  padding: 16px;
  border: 1px solid rgba(9, 105, 218, 0.18);
  border-radius: 15px;
  background: color-mix(in srgb, var(--surface-strong) 82%, transparent);
}

.summary-card strong,
.summary-card span {
  display: block;
}

.summary-card strong {
  font-size: 0.92rem;
}

.summary-card span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.content {
  padding: clamp(28px, 7vw, 60px);
}

.language-section + .language-section {
  margin-top: 70px;
  padding-top: 56px;
  border-top: 1px solid var(--border);
}

h2 {
  margin: 0 0 10px;
  font-size: 1.65rem;
  letter-spacing: -0.025em;
}

h3 {
  margin: 34px 0 8px;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}

p,
ul {
  margin-top: 10px;
  margin-bottom: 10px;
}

ul {
  padding-left: 22px;
}

li + li {
  margin-top: 7px;
}

code {
  padding: 0.12em 0.36em;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--background);
  font-size: 0.88em;
}

.site-footer {
  padding: 26px 0 42px;
  color: var(--muted);
  font-size: 0.84rem;
  text-align: center;
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0d1117;
    --surface: rgba(22, 27, 34, 0.9);
    --surface-strong: #161b22;
    --text: #f0f6fc;
    --muted: #9ba7b4;
    --border: #30363d;
    --accent: #58a6ff;
    --accent-soft: #102a44;
    --shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  }
}

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