:root {
  --ink: #16181d;
  --muted: #6b7280;
  --line: #e4e7ec;
  --accent: #1f4e8c;
  --accent-dark: #163a68;
  --bg: #f7f8fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 560px; }

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  font-weight: 700; font-size: 18px; letter-spacing: -0.2px;
  color: var(--ink); text-decoration: none;
}
.brand span { color: var(--accent); }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a {
  color: var(--muted); text-decoration: none; font-size: 15px;
}
.nav a:hover { color: var(--ink); }
.nav .nav-cta {
  color: var(--accent); font-weight: 600;
}
.nav form.inline { display: inline; margin: 0; }
.nav button.link {
  background: none; border: 0; padding: 0; font: inherit; font-size: 15px;
  color: var(--muted); cursor: pointer;
}
.nav button.link:hover { color: var(--ink); }

.hero { padding: 72px 0 40px; }
.eyebrow {
  margin: 0 0 12px; font-size: 13px; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--accent); font-weight: 600;
}
h1 {
  font-size: 40px; line-height: 1.15; margin: 0 0 18px; letter-spacing: -0.8px;
}
.page-title { font-size: 28px; margin: 40px 0 8px; }
.lead { font-size: 17px; color: #3d4351; max-width: 46em; }

.button {
  display: inline-block; margin-top: 10px; padding: 12px 22px;
  background: var(--accent); color: #fff; border: 1px solid var(--accent);
  border-radius: 6px; font-size: 15px; font-weight: 600;
  text-decoration: none; cursor: pointer;
}
.button:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.button.ghost {
  background: transparent; color: var(--accent); margin-left: 10px;
}
.button.ghost:hover { background: #eef2f8; }

.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px; margin: 26px 0;
}
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 22px 24px;
}
.card h2 { font-size: 16px; margin: 0 0 10px; }
.card p { margin: 0 0 8px; color: var(--muted); font-size: 15px; }
.note {
  background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 20px 24px; margin: 10px 0 60px;
}
.note h2 { font-size: 16px; margin: 0 0 8px; }
.note p { margin: 0; color: var(--muted); font-size: 15px; }

.form { margin: 22px 0 60px; }
.form label { display: block; font-size: 14px; font-weight: 600; margin: 16px 0 6px; }
.form input {
  width: 100%; padding: 11px 13px; font-size: 15px; font-family: inherit;
  border: 1px solid #cfd6e0; border-radius: 6px; background: #fff;
}
.form input:focus { outline: 2px solid #cfdcf0; border-color: var(--accent); }
.form .button { width: 100%; margin-top: 20px; }
.hint { color: var(--muted); font-size: 13px; margin: 14px 0 0; }
.muted { color: var(--muted); font-size: 15px; }

.alert {
  background: #fdf2f2; border: 1px solid #f3c6c6; color: #8f2222;
  border-radius: 8px; padding: 12px 16px; margin: 18px 0 0; font-size: 14px;
}

.kv { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; }
.kv dt { color: var(--muted); font-size: 14px; }
.kv dd { margin: 0; font-size: 14px; }

.table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 14px; }
.table th, .table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); }
.table th { color: var(--muted); font-weight: 600; font-size: 13px; }
.table td.muted { text-align: center; padding: 20px; }

.foot {
  border-top: 1px solid var(--line); background: #fff; margin-top: 40px; padding: 20px 0;
  color: var(--muted); font-size: 13px;
}
.foot .wrap { display: flex; justify-content: space-between; }

code { background: #eef1f5; padding: 2px 6px; border-radius: 4px; font-size: 13px; }

@media (max-width: 620px) {
  h1 { font-size: 30px; }
  .button.ghost { margin-left: 0; }
  .foot .wrap { flex-direction: column; gap: 6px; }
}