:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  font-family: -apple-system, "SF Pro Text", "Helvetica Neue", system-ui, sans-serif;
  line-height: 1.6; margin: 0; padding: 40px 20px 80px;
  color: #1a1a1a; background: #fafafa;
}
.wrap { max-width: 760px; margin: 0 auto; }
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 6px; }
h2 { font-size: 21px; margin: 34px 0 10px; }
.updated { color: #888; font-size: 14px; margin-bottom: 24px; }
a { color: #5B4FE9; }
ul, ol { padding-left: 22px; }
li { margin: 6px 0; }
hr { border: none; border-top: 1px solid #e2e2e2; margin: 24px 0; }

.langbar { display: flex; gap: 8px; margin-bottom: 28px; }
.lang-btn {
  font: inherit; font-size: 14px; cursor: pointer; padding: 6px 14px;
  border: 1px solid #ccc; border-radius: 999px; background: transparent; color: #666;
}
.lang-btn.active { background: #5B4FE9; color: #fff; border-color: #5B4FE9; }
section[hidden] { display: none; }

.back { display: inline-block; font-size: 14px; margin-bottom: 18px; text-decoration: none; }
.back:hover { text-decoration: underline; }

/* Карточки документов на главной */
.cards { display: grid; gap: 12px; margin: 26px 0 8px; padding: 0; list-style: none; }
.cards li { margin: 0; }
.cards a {
  display: block; padding: 16px 18px; border: 1px solid #e2e2e2; border-radius: 12px;
  background: #fff; text-decoration: none; color: inherit;
}
.cards a:hover { border-color: #5B4FE9; }
.cards .t { font-weight: 600; font-size: 16px; color: #5B4FE9; }
.cards .d { font-size: 13.5px; color: #666; margin-top: 3px; }

/* Блок скачивания иконки */
.icon-row { display: flex; align-items: center; gap: 16px; margin: 22px 0; flex-wrap: wrap; }
.icon-row img { width: 88px; height: 88px; border-radius: 20px; border: 1px solid #e2e2e2; }
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 999px;
  background: #5B4FE9; color: #fff; text-decoration: none; font-size: 14.5px; font-weight: 600;
}
.btn:hover { opacity: .9; }
.note { font-size: 13px; color: #666; }

@media (prefers-color-scheme: dark) {
  body { color: #e6e6e6; background: #161617; }
  a { color: #9a91f5; }
  .lang-btn { border-color: #444; color: #aaa; }
  .lang-btn.active { background: #5B4FE9; color: #fff; border-color: #5B4FE9; }
  hr { border-color: #333; }
  .cards a { background: #1f1f21; border-color: #333; }
  .cards .t { color: #9a91f5; }
  .cards .d { color: #999; }
  .icon-row img { border-color: #333; }
  .note { color: #999; }
}