:root {
  --ink: #13201e;
  --muted: #5e6f6b;
  --line: #d7e2df;
  --surface: #ffffff;
  --bg: #f3f7f5;
  --teal: #0f766e;
  --teal-dark: #0b5f59;
  --soft: #d9f4ef;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at top left, #dff2ed 0, transparent 32rem), var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
a { color: var(--teal-dark); font-weight: 700; }
.site-header {
  width: min(100% - 32px, 1040px);
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  color: white;
  background: var(--teal);
  text-decoration: none;
  letter-spacing: .04em;
  font-size: .8rem;
}
nav { display: flex; gap: 20px; }
nav a { text-decoration: none; }
main, footer { width: min(100% - 32px, 920px); margin: 0 auto; }
.hero { padding: 88px 0 64px; }
.eyebrow { color: var(--teal-dark); font-size: .82rem; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
h1 { max-width: 780px; margin: 12px 0 16px; font-size: clamp(2.35rem, 7vw, 4.8rem); line-height: 1.02; letter-spacing: -.045em; }
.lead { max-width: 680px; color: var(--muted); font-size: 1.12rem; }
h2 { margin: 0 0 20px; font-size: 1.55rem; }
.app-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 18px 42px rgba(15, 68, 61, .09);
}
.app-card + .app-card { margin-top: 20px; }
.app-card h3 { margin: 0; font-size: 1.35rem; }
.app-card p { margin: 6px 0 16px; color: var(--muted); }
.app-mark { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 15px; background: var(--teal); color: white; font-size: 1.5rem; font-weight: 900; }
.links { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.button { display: inline-block; padding: 10px 15px; border-radius: 10px; background: var(--teal); color: white; text-decoration: none; }
.content { padding: 64px 0; }
.content h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
.content h2 { margin-top: 36px; }
.content h3 { margin-top: 26px; }
.content p, .content li { max-width: 780px; }
.notice { padding: 16px 18px; border: 1px solid #9bd8cf; border-radius: 12px; background: var(--soft); }
.language-links { display: flex; gap: 12px; margin: 18px 0 34px; }
footer { margin-top: 72px; padding: 28px 0 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
@media (max-width: 580px) {
  .site-header { align-items: flex-start; padding-top: 14px; }
  nav { flex-direction: column; gap: 4px; text-align: right; }
  .hero { padding-top: 54px; }
  .app-card { grid-template-columns: 1fr; }
}