:root {
  --blue: #185FA5; --blue-dark: #0C447C; --blue-light: #B5D4F4;
  --ink: #14233A; --body: #43536B; --muted: #6B7A90;
  --surface: #ffffff; --border: #E2E9F1; --page-bg: #F7FAFD; --subtle: #F4F8FC;
  --good: #1F7A4D;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--body); background: var(--page-bg); line-height: 1.65; -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 22px; }
nav { border-bottom: 1px solid var(--border); background: var(--surface); }
nav .wrap { display: flex; align-items: center; justify-content: space-between; padding: 16px 22px; }
.brand { font-weight: 800; font-size: 17px; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
nav a.back { font-size: 14px; color: var(--blue); text-decoration: none; font-weight: 600; }
main { padding: 40px 0 72px; }
h1 { font-size: clamp(26px, 5vw, 34px); color: var(--ink); font-weight: 800; letter-spacing: -0.01em; margin-bottom: 10px; }
.sub { font-size: 15px; color: var(--muted); margin-bottom: 28px; max-width: 56ch; }
h2 { font-size: 18px; color: var(--ink); font-weight: 700; margin: 30px 0 12px; }
h3 { font-size: 14.5px; color: var(--ink); font-weight: 700; margin-bottom: 6px; }
p, li { font-size: 14.5px; color: var(--body); }
p { margin-bottom: 12px; }
ul, ol { padding-left: 20px; margin-bottom: 12px; }
li { margin-bottom: 6px; }
.eyebrow { font-size: 11.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue); margin-bottom: 8px; }

.template-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px 22px; margin-bottom: 20px; }
.template-card .label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--blue); margin-bottom: 10px; }
.template-card .subject { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.template-card .subject b { color: var(--ink); }
.template-card pre {
  white-space: pre-wrap; font-family: inherit; font-size: 13.5px; color: var(--ink);
  background: var(--subtle); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; margin-bottom: 12px; line-height: 1.6;
}
.copy-btn { font-size: 12px; padding: 6px 14px; background: var(--surface); color: var(--blue); border: 1px solid var(--blue-light); border-radius: 7px; cursor: pointer; font-weight: 600; }
.copy-btn:hover { background: var(--subtle); }
.copy-btn.copied { color: var(--good); border-color: var(--good); }

.tip-list li::marker { color: var(--blue); }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; margin-top: 20px; }
.card-grid a.tile { display: block; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px 18px; text-decoration: none; color: inherit; transition: border-color .12s; }
.card-grid a.tile:hover { border-color: var(--blue-light); }
.card-grid a.tile .t { font-size: 14.5px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.card-grid a.tile .d { font-size: 12.5px; color: var(--muted); }

.cta-box { text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 28px 22px; margin: 36px 0; }
.cta-box p { max-width: 46ch; margin: 0 auto 16px; }
.btn-primary { display: inline-block; font-size: 14.5px; font-weight: 700; text-decoration: none; padding: 11px 22px; border-radius: 9px; background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-secondary { display: inline-block; font-size: 13.5px; font-weight: 600; text-decoration: none; padding: 9px 18px; border-radius: 8px; background: var(--surface); color: var(--blue); border: 1px solid var(--blue-light); margin-left: 8px; }

footer { text-align: center; padding: 30px 0 50px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--border); }