:root {
  --bg: #f7f9fc; --card: #ffffff; --text: #242833; --muted: #646b80;
  --accent: #4f9f2f; --accent-soft: #e8f6e1; --border: #e3e6ee;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171f; --card: #1d212b; --text: #eef0f5; --muted: #a7adbd;
    --accent: #7ccf55; --accent-soft: #24331c; --border: #2c3140;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
header img { width: 72px; height: 72px; border-radius: 18px; }
header h1 { margin: 0; font-size: 28px; line-height: 1.2; }
header p { margin: 2px 0 0; color: var(--muted); }
nav { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
nav a {
  padding: 6px 14px; border-radius: 999px; text-decoration: none;
  background: var(--accent-soft); color: var(--accent); font-weight: 600; font-size: 15px;
}
nav a[aria-current="page"] { background: var(--accent); color: #fff; }
section {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 20px; margin-bottom: 16px;
}
h2 { margin: 0 0 8px; font-size: 20px; }
h3 { margin: 16px 0 4px; font-size: 17px; }
p, ul { margin: 0 0 8px; }
ul { padding-left: 20px; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 15px; }
.contact {
  display: inline-block; margin-top: 4px; padding: 10px 18px; border-radius: 12px;
  background: var(--accent); color: #fff; font-weight: 700; text-decoration: none;
}
footer { text-align: center; color: var(--muted); font-size: 14px; margin-top: 32px; }