:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1c1b19;
  --muted: #5f5c55;
  --line: #e6e2d9;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --accent-soft: #e3f2ef;
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141412;
    --surface: #1c1c19;
    --text: #efede8;
    --muted: #a8a49b;
    --line: #2e2d29;
    --accent: #2dd4bf;
    --accent-ink: #0b1f1d;
    --accent-soft: #15302d;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Rubik", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

/* Language switching: without JS every language is shown; with JS only the active one. */
.js [data-lang]:not(.on) { display: none; }

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

.wrap {
  max-width: 880px;
  margin-inline: auto;
  padding-inline: 16px;
}

header.top {
  border-block-end: 1px solid var(--line);
  background: var(--surface);
}

header.top .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  padding-block: 14px;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

nav.links { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 15px; }
nav.links a { color: var(--muted); text-decoration: none; }
nav.links a:hover { color: var(--text); }

.langs { display: flex; gap: 4px; }
.langs button {
  font: inherit;
  font-size: 14px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.langs button[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

main { padding-block: 40px 64px; }

h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.2; margin: 0 0 16px; }
h2 { font-size: 24px; line-height: 1.3; margin: 40px 0 12px; }
h3 { font-size: 19px; margin: 24px 0 8px; }
p, ul, ol { margin: 0 0 14px; }
li { margin-block-end: 6px; }

.lead { font-size: 20px; color: var(--muted); max-width: 640px; }

.btn {
  display: inline-block;
  margin-block-start: 12px;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  text-decoration: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-block: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.card h3 { margin-block-start: 0; }
.card .num {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  margin-block-end: 8px;
}

.note {
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.legal h2 { font-size: 21px; margin-block-start: 32px; }
.legal .meta { color: var(--muted); font-size: 15px; }

footer.bottom {
  border-block-start: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  padding-block: 24px;
}
footer.bottom p { margin: 0 0 6px; }