/* Страница о приложении (/, /uk/, /en/): статичная, без фреймворка, цвета «Современного» оформления. */
:root {
  color-scheme: light dark;
  --bg: #f7f8fa; --card: #ffffff; --text: #20242c; --text-2: #5f6776; --border: #e3e6ec;
  --accent: #4a5ed6; --on-accent: #ffffff; --accent-bg: #ebeeff;
  --font: 'Noto Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121418; --card: #1c1f26; --text: #eceef2; --text-2: #a1a8b5; --border: #303540; --accent: #93a2ff; --on-accent: #10142b; --accent-bg: #293153; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 var(--font); }
a { color: var(--accent); }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 0; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 20px; min-height: 44px; }
.logo img { width: 36px; height: 36px; border-radius: 9px; }
.langs { display: flex; gap: 4px; }
.langs a { display: inline-grid; place-items: center; min-width: 44px; min-height: 44px; padding: 0 8px; border-radius: 10px; color: var(--text-2); text-decoration: none; font-weight: 600; font-size: 15px; }
.langs a[aria-current="page"] { color: var(--accent); background: var(--accent-bg); }

.hero { padding: 40px 0 48px; display: grid; gap: 20px; }
h1 { margin: 0; font-size: clamp(32px, 6vw, 52px); line-height: 1.12; letter-spacing: -0.02em; max-width: 14em; }
.lead { margin: 0; font-size: clamp(17px, 2.4vw, 20px); color: var(--text-2); max-width: 36em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 8px; }
@media (max-width: 520px) { .actions .btn { width: 100%; } }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 26px; border-radius: 14px; border: 0; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.btn.primary { background: var(--accent); color: var(--on-accent); }
.btn.dark { background: var(--text); color: var(--bg); }
.btn:focus-visible, .langs a:focus-visible, .logo:focus-visible, .signin:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.signin { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; }

.stats { display: flex; flex-wrap: wrap; gap: 8px 28px; margin: 4px 0 0; padding: 0; list-style: none; color: var(--text-2); }
.stats b { color: var(--text); font-size: 22px; margin-right: 6px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; padding-bottom: 48px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 22px; }
.card h2 { margin: 0 0 8px; font-size: 19px; line-height: 1.3; }
.card p { margin: 0; color: var(--text-2); font-size: 16px; }
.mark { display: inline-grid; place-items: center; width: 40px; height: 40px; margin-bottom: 12px; border-radius: 12px; background: var(--accent-bg); color: var(--accent); }

.install { background: var(--card); border: 1px solid var(--border); border-radius: 22px; padding: 28px 24px; margin-bottom: 48px; display: grid; gap: 14px; }
.install h2 { margin: 0; font-size: 24px; }
.install p { margin: 0; color: var(--text-2); }
.steps { margin: 0; padding-left: 22px; display: grid; gap: 6px; }
.install .target { padding: 16px; border-radius: 14px; background: var(--accent-bg); }
.install .target strong { color: var(--text); }
[hidden] { display: none !important; }

footer { padding: 24px 0 40px; color: var(--text-2); font-size: 15px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; border-top: 1px solid var(--border); }
footer a { display: inline-flex; align-items: center; min-height: 44px; }
.card:has(picture) { display: flex; flex-direction: column; }
.card picture { display: block; margin-top: 18px; }
.card picture img { display: block; width: 100%; height: auto; }