:root {
  --brand: #193B32;
  --brand-light: #2E7D32;
  --ink: #1a2b24;
  --bg: #f2f7f0;
  --card: #ffffff;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, system-ui, "Segoe UI", sans-serif;
  margin: 0; background: var(--bg); color: var(--ink); line-height: 1.65;
}
header {
  background: linear-gradient(160deg, var(--brand) 0%, #0f2620 100%);
  color: #fff; text-align: center; padding: 48px 24px 40px;
}
header img {
  width: 104px; height: 104px; border-radius: 24px;
  box-shadow: 0 6px 24px rgba(0,0,0,.35);
}
header h1 { margin: 18px 0 4px; font-size: 1.7em; letter-spacing: .3px; }
header p { margin: 0; opacity: .85; }
nav { margin-top: 18px; }
nav a {
  color: #fff; text-decoration: none; opacity: .9; margin: 0 10px;
  padding: 6px 14px; border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px; font-size: .9em;
}
nav a:hover { background: rgba(255,255,255,.12); }
main { max-width: 760px; margin: -20px auto 0; padding: 0 20px 48px; }
.card {
  background: var(--card); border-radius: 16px; padding: 28px 28px 20px;
  margin-top: 24px; box-shadow: 0 2px 12px rgba(25,59,50,.08);
}
h2 { color: var(--brand); margin-top: 0; }
h3 { color: var(--brand); }
a { color: var(--brand-light); }
ul { padding-left: 22px; }
footer {
  text-align: center; font-size: .85em; color: #667; padding: 24px;
}
.lang-tag {
  display: inline-block; font-size: .75em; letter-spacing: .12em;
  text-transform: uppercase; color: #fff; background: var(--brand-light);
  border-radius: 6px; padding: 2px 10px; margin-bottom: 10px;
}