:root {
  --bg: #f7f7f5;
  --ink: #111111;
  --muted: #3f4650;
  --line: #e3e3de;
  --blue: #2f6bff;
  --card: #ffffff;
  color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; }

a { color: inherit; }

.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--ink);
  color: #fff;
  padding: 8px 12px;
  z-index: 5;
}

.skip:focus { top: 12px; }

.shell {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 16px;
  padding: 20px 0 8px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.03em;
  font-size: 1.125rem;
}

.brand img {
  width: 32px;
  height: 32px;
  display: block;
}

.nav {
  display: flex;
  gap: 18px;
}

.nav a {
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 4px; }

.hero {
  text-align: center;
  padding: 28px 0 12px;
}

.mark {
  width: min(148px, 38vw);
  height: auto;
  display: block;
  margin: 0 auto 18px;
}

.eyebrow {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.04em;
  font-size: 1.35rem;
}

h1 {
  margin: 10px auto 0;
  max-width: 16ch;
  font-size: clamp(2rem, 6vw, 3.35rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  font-weight: 650;
}

.tagline,
.subline,
.lead {
  margin: 12px auto 0;
  max-width: 38rem;
}

.tagline {
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.subline,
.lead,
.section p,
.card p,
.faq dd,
.about p {
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn:focus-visible,
.nav a:focus-visible,
.brand:focus-visible,
.site-footer a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.credit {
  margin: 22px 0 0;
  font-size: 0.95rem;
}

.credit a { color: var(--ink); }

.section {
  padding: 48px 0 8px;
}

.section h2,
.page-intro h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2rem);
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.steps,
.cards {
  display: grid;
  gap: 14px;
  margin-top: 20px;
  padding: 0;
  list-style: none;
}

.step,
.card,
.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 18px 16px;
}

.step span {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.step h3,
.card h2,
.faq-item h2 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.step p,
.card p,
.faq-item p { margin: 8px 0 0; }

.page-intro { padding: 36px 0 8px; }

.page-intro p { max-width: 40rem; }

.faq { margin-top: 20px; display: grid; gap: 14px; }

.site-footer {
  padding: 40px 0 48px;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer a { color: var(--ink); }

@media (min-width: 768px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .hero { padding-top: 48px; }
}