:root {
  --ink: #16202e;
  --muted: #5a6474;
  --line: #e3e7ee;
  --paper: #ffffff;
  --wash: #f5f7fb;
  --blue: #2b64de;
  --blue-dark: #1f4fc4;
  --gold: #f7c51e;
  --radius: 14px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8ecf3;
    --muted: #a3acba;
    --line: #2a303b;
    --paper: #12161d;
    --wash: #181d26;
    --blue: #6b9bff;
    --blue-dark: #8fb3ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--blue); }
a:hover { color: var(--blue-dark); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.brand .brand-logo { width: 38px; height: 38px; display: block; }
nav a { color: var(--muted); text-decoration: none; margin-left: 22px; font-size: 15px; white-space: nowrap; }
nav a:hover { color: var(--ink); }

.hero { padding: 72px 0 56px; text-align: center; }
.hero .hero-logo { width: 132px; height: 132px; display: block; margin: 0 auto; }
.hero h1 { font-size: clamp(34px, 6vw, 54px); line-height: 1.1; letter-spacing: -0.025em; margin: 18px 0 14px; }
.hero p.lead { font-size: clamp(18px, 2.4vw, 21px); color: var(--muted); max-width: 640px; margin: 0 auto; }
.pill { display: inline-block; margin-top: 26px; padding: 8px 16px; border-radius: 999px; background: var(--wash); border: 1px solid var(--line); color: var(--muted); font-size: 15px; }

section { padding: 48px 0; }
section.alt { background: var(--wash); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font-size: 30px; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 10px; }
.sub { color: var(--muted); margin: 0 0 28px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.card .ic { font-size: 22px; margin-bottom: 8px; display: block; }

.promise { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.promise div { border-left: 3px solid var(--gold); padding-left: 16px; }
.promise h3 { margin: 0 0 4px; font-size: 18px; }
.promise p { margin: 0; color: var(--muted); font-size: 15.5px; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 14.5px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
footer a { color: var(--muted); }

/* the privacy policy */
.doc { max-width: 760px; padding: 48px 20px 64px; }
.doc h1 { font-size: 38px; letter-spacing: -0.02em; margin: 0 0 6px; }
.doc .date { color: var(--muted); margin: 0 0 28px; }
.doc h2 { font-size: 22px; margin: 36px 0 8px; }
.doc p, .doc li { color: var(--ink); }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc .note { background: var(--wash); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; margin: 20px 0; }

@media (max-width: 560px) {
  nav a { margin-left: 14px; }
  nav a:not(:last-child) { display: none; }
  .brand { font-size: 18px; }
  .hero { padding: 48px 0 36px; }
  .hero .hero-logo { width: 104px; height: 104px; }
}

/* the goldfinch's hop (hop.js starts it as the page opens and when the pointer comes onto it) */
.hop .pf-bird { transform-box: fill-box; transform-origin: 50% 100%; }
.hop.hopping .pf-bird { animation: pf-hop 0.75s ease-out; }
@keyframes pf-hop {
  0% { transform: translateY(0) scaleY(1); }
  12% { transform: translateY(0) scaleY(0.9); }
  30% { transform: translateY(-17%) scaleY(1.04); }
  46% { transform: translateY(0) scaleY(0.92); }
  60% { transform: translateY(-9%) scaleY(1.02); }
  76% { transform: translateY(0) scaleY(0.95); }
  100% { transform: translateY(0) scaleY(1); }
}