/* Public privacy policy. External stylesheet only: the app's CSP allows
   style-src 'self', so the page carries no inline style or script. */

:root {
  color-scheme: light dark;
  --bg: #fbfaf7;
  --ink: #1f2328;
  --muted: #5c636b;
  --line: #e1ddd3;
  --accent: #1b5e4b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181b;
    --ink: #e7e4dd;
    --muted: #a3a9ae;
    --line: #2d3338;
    --accent: #7fd1b5;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding: 0 1.25rem 4rem;
  background: var(--bg);
  color: var(--ink);
  font: 1rem/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.page-header,
main {
  max-width: 46rem;
  margin: 0 auto;
}

.page-header { padding: 2.5rem 0 1rem; border-bottom: 1px solid var(--line); }

h1 { margin: 0 0 0.5rem; font-size: 1.7rem; line-height: 1.3; }
.page-header__alt { display: block; margin-top: 0.15rem; color: var(--muted); font-size: 1.05rem; font-weight: 500; }

.meta { margin: 0 0 1rem; color: var(--muted); font-size: 0.9rem; }

.lang-nav { display: flex; gap: 0.75rem; margin-bottom: 0.5rem; }
.lang-nav a {
  padding: 0.3rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
}

article { padding-top: 2rem; scroll-margin-top: 1rem; }
article + article { margin-top: 2.5rem; border-top: 1px solid var(--line); }

h2 { margin: 2rem 0 0.5rem; font-size: 1.2rem; line-height: 1.4; }
article > h2:first-child { margin-top: 0; }

p, ul { margin: 0.5rem 0; }
ul { padding-left: 1.3rem; }
li { margin: 0.35rem 0; }

a { color: var(--accent); text-underline-offset: 0.2rem; }
a:hover { text-decoration-thickness: 2px; }

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

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