:root {
  --bg: #eaf4fc;
  --card: #ffffff;
  --ink: #1f2d3d;
  --muted: #5b6b7b;
  --brand: #2f9fe6;
  --brand-deep: #1f7fc0;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(31, 127, 192, 0.12);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #d8ecfb 0%, var(--bg) 240px, var(--bg) 100%);
  line-height: 1.6;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
header.site { display: flex; align-items: center; gap: 12px; padding: 8px 0 24px; }
.droplet {
  width: 40px; height: 40px; flex: 0 0 40px;
  background: radial-gradient(circle at 35% 30%, #8fd0f7, var(--brand) 70%);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  box-shadow: var(--shadow);
}
header.site .name { font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
nav.top a { color: var(--brand-deep); text-decoration: none; font-weight: 600; margin-left: 18px; }
nav.top a:hover { text-decoration: underline; }
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 28px 8px;
  margin-top: 20px;
}
h1 { font-size: 30px; letter-spacing: -0.02em; margin: 4px 0 4px; }
h2 { font-size: 19px; margin: 28px 0 6px; color: var(--brand-deep); }
h3 { font-size: 16px; margin: 20px 0 2px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); }
.lead { font-size: 18px; }
.effective { color: var(--muted); font-size: 14px; margin-top: 0; }
a { color: var(--brand-deep); }
.email { font-weight: 700; }
.tag {
  display: inline-block; background: #e3f2fd; color: var(--brand-deep);
  border-radius: 999px; padding: 3px 12px; font-size: 13px; font-weight: 600;
}
footer.site { text-align: center; color: var(--muted); font-size: 13px; padding-top: 28px; }
footer.site a { margin: 0 8px; }
.home-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 8px; }
.btn {
  display: inline-block; background: var(--brand); color: #fff; text-decoration: none;
  font-weight: 700; padding: 12px 22px; border-radius: 999px; box-shadow: var(--shadow);
}
.btn.secondary { background: #fff; color: var(--brand-deep); }