:root {
  color-scheme: light dark;
  --background: #f7f7f4;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #5f6b76;
  --accent: #356859;
  --border: #dce2df;
  --shadow: 0 14px 36px rgb(31 41 51 / 8%);
}

* { box-sizing: border-box; }

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

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgb(255 255 255 / 82%);
}

.header-inner, main, footer {
  width: min(100% - 36px, 780px);
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
}

.brand {
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
}

nav { display: flex; gap: 18px; }
nav a { font-size: 0.94rem; }

main { padding-block: 64px; }

h1, h2 { line-height: 1.22; }
h1 { margin: 0 0 18px; font-size: clamp(2.1rem, 7vw, 3.4rem); letter-spacing: -0.04em; }
h2 { margin: 44px 0 12px; font-size: 1.35rem; }
p, ul { margin-block: 0 18px; }

.eyebrow {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lead { color: var(--muted); font-size: 1.15rem; }
.meta { color: var(--muted); font-size: 0.92rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.card {
  display: block;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
  color: var(--text);
  text-decoration: none;
}
.card h2 { margin: 0 0 8px; }
.card p { margin: 0; color: var(--muted); }

.callout {
  margin-block: 28px;
  padding: 20px 22px;
  border-left: 4px solid var(--accent);
  border-radius: 4px 12px 12px 4px;
  background: var(--surface);
}
.callout p:last-child { margin-bottom: 0; }

.language-link { margin-top: 38px; }

footer {
  padding-block: 26px 42px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .header-inner { align-items: flex-start; flex-direction: column; gap: 8px; padding-block: 14px; }
  nav { gap: 14px; }
  main { padding-block: 44px; }
  .cards { grid-template-columns: 1fr; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #111714;
    --surface: #19221e;
    --text: #edf3ef;
    --muted: #b4c0ba;
    --accent: #91d2ba;
    --border: #34443d;
    --shadow: none;
  }
  .site-header { background: rgb(17 23 20 / 88%); }
}