:root {
  --navy: #0f1f33;
  --navy-soft: #1b3350;
  --slate: #46586e;
  --teal: #178a8a;
  --line: #dde4ec;
  --bg: #f7f9fc;
  --white: #fff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.65 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--navy);
  background: var(--white);
}

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

header.top {
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.bar {
  max-width: 1040px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.3px;
  text-decoration: none;
  color: var(--navy);
  white-space: nowrap;
}

.logo span { color: var(--teal); }

nav { margin-left: auto; display: flex; gap: 26px; flex-wrap: wrap; }

nav a {
  color: var(--slate);
  text-decoration: none;
  font-size: 15px;
}

nav a:hover, nav a.on { color: var(--navy); }

.btn {
  display: inline-block;
  padding: 10px 18px;
  background: var(--teal);
  color: var(--white);
  border-radius: 4px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}

.btn.ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--line);
}

.hero {
  background: linear-gradient(180deg, var(--bg), var(--white));
  border-bottom: 1px solid var(--line);
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 64px 24px; }
.wrap.tight { padding: 44px 24px; }

h1 {
  font-size: 40px;
  line-height: 1.2;
  letter-spacing: -0.8px;
  margin: 0 0 16px;
  max-width: 20ch;
}

h2 { font-size: 25px; letter-spacing: -0.4px; margin: 0 0 14px; }
h3 { font-size: 17px; margin: 0 0 8px; }

.lede { font-size: 18px; color: var(--slate); max-width: 62ch; margin: 0 0 28px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  margin-top: 40px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px;
  background: var(--white);
}

.card p { color: var(--slate); margin: 0; font-size: 15px; }

.stats {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
  padding: 36px 0 0;
  border-top: 1px solid var(--line);
  margin-top: 48px;
}

.stat b { display: block; font-size: 30px; letter-spacing: -0.6px; }
.stat span { color: var(--slate); font-size: 14px; }

table.plain { border-collapse: collapse; width: 100%; font-size: 15px; }
table.plain th, table.plain td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
}
table.plain th { color: var(--slate); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.4px; }

footer.bottom {
  background: var(--navy);
  color: #9fb0c4;
  margin-top: 72px;
  font-size: 14px;
}

footer.bottom .wrap { padding: 40px 24px; }
footer.bottom a { color: #cfe0ea; }

.lab-notice {
  background: #fff8e1;
  border-bottom: 1px solid #f0dfa8;
  color: #6b551c;
  font-size: 13px;
  text-align: center;
  padding: 9px 24px;
}

form.login { max-width: 360px; }
form.login label { display: block; font-size: 14px; color: var(--slate); margin: 16px 0 6px; }
form.login input {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 15px;
}
form.login button { margin-top: 22px; width: 100%; border: 0; cursor: pointer; }