:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #16181d;
  --muted: #5c6270;
  --line: #e3e6ec;
  --accent: #2f6f5e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #171a20;
    --text: #eceef2;
    --muted: #9aa2b1;
    --line: #262a33;
    --accent: #6fc6a8;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 40px 20px 72px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 720px;
  margin: 0 auto;
}

header.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.mark {
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  border-radius: 14px;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

h1 {
  font-size: 30px;
  line-height: 1.2;
  margin: 0;
  letter-spacing: -0.4px;
}

.tagline {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 15px;
}

h2 {
  font-size: 19px;
  margin: 34px 0 10px;
  letter-spacing: -0.2px;
}

h3 {
  font-size: 16px;
  margin: 22px 0 6px;
}

p, li { color: var(--text); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 24px;
  margin: 18px 0;
}

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

ul { padding-left: 20px; }

li { margin: 6px 0; }

.meta {
  color: var(--muted);
  font-size: 14px;
}

.contact {
  font-size: 18px;
  font-weight: 600;
  word-break: break-all;
}

footer {
  margin-top: 44px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

footer a { margin-right: 16px; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 15px;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th { color: var(--muted); font-weight: 600; }

.scroll { overflow-x: auto; }