/* style.css - wspólny styl landingu + stron prawnych. Light + dark (prefers-color-scheme).
   Akcent = --accent (podmieniany per apkę przez backfill/new-app). Bez zależności, statyczny hosting. */
:root {
  --accent: #3B6EF5;
  --accent-ink: #ffffff;
  --bg: #ffffff;
  --bg-soft: #f6f8fa;
  --fg: #14181f;
  --fg-muted: #5a6472;
  --card: #ffffff;
  --border: #e6e9ee;
  --shadow: 0 8px 30px rgba(20, 24, 31, .06);
  --radius: 16px;
  --maxw: 960px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0e13;
    --bg-soft: #12151c;
    --fg: #eef1f6;
    --fg-muted: #9aa4b2;
    --card: #151922;
    --border: #232936;
    --shadow: 0 8px 30px rgba(0, 0, 0, .35);
    --accent-ink: #07120f;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* header / footer */
.site-header, .site-footer { border-bottom: 1px solid var(--border); }
.site-footer { border-top: 1px solid var(--border); border-bottom: 0; margin-top: 64px; }
.site-header .wrap, .site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 18px; padding-bottom: 18px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: var(--fg); }
.brand .mark { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: var(--accent-ink); font-weight: 900; }
.nav a { color: var(--fg-muted); margin-left: 18px; font-weight: 600; font-size: 14px; }
.nav a:hover { color: var(--fg); text-decoration: none; }
.site-footer .links a { color: var(--fg-muted); margin-left: 16px; font-size: 14px; }
.site-footer small { color: var(--fg-muted); }

/* hero */
.hero { text-align: center; padding: 84px 0 56px; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.05; letter-spacing: -.02em; margin: 0 0 16px; }
.hero h1 .accent { color: var(--accent); }
.hero p.lead { font-size: clamp(17px, 2.4vw, 21px); color: var(--fg-muted); max-width: 620px; margin: 0 auto 28px; }
.cta { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 999px; font-weight: 700; border: 1px solid var(--border); background: var(--card); color: var(--fg); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }

/* sections */
section { padding: 40px 0; }
h2 { font-size: clamp(24px, 4vw, 34px); letter-spacing: -.01em; margin: 0 0 8px; }
.section-sub { color: var(--fg-muted); margin: 0 0 28px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--fg-muted); font-size: 15px; }
.card .ico { width: 40px; height: 40px; border-radius: 11px; background: color-mix(in srgb, var(--accent) 16%, transparent); display: grid; place-items: center; margin-bottom: 14px; font-size: 20px; }

/* FAQ */
details { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 4px 18px; margin-bottom: 10px; }
details summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; float: right; color: var(--fg-muted); font-weight: 700; }
details[open] summary::after { content: "-"; }
details p { color: var(--fg-muted); margin: 0 0 14px; }

/* legal / doc pages */
.doc { padding: 48px 0; }
.doc h1 { font-size: clamp(28px, 5vw, 40px); margin: 0 0 6px; }
.doc .updated { color: var(--fg-muted); margin: 0 0 32px; font-size: 14px; }
.doc h2 { font-size: 22px; margin: 32px 0 8px; }
.doc p, .doc li { color: var(--fg); }
.doc ul { padding-left: 22px; }
.callout { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; margin: 20px 0; }