:root {
  --ink: #1d2b3a;
  --paper: #f7f9fb;
  --accent: #1f7a8c;
  --accent-dark: #14586a;
  --muted: #4a5b6a;
  --line: #d5dee5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

.hero {
  background: var(--ink);
  color: #ffffff;
  padding: 3.5rem 1.25rem 3rem;
  text-align: center;
}

.kicker {
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: #a8c3cc;
}

h1 {
  margin: 0 auto 0.75rem;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  line-height: 1.15;
  max-width: 30ch;
}

.tagline {
  margin: 0 auto 2rem;
  max-width: 46ch;
  color: #cfdde4;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
}

.btn-primary { background: var(--accent); color: #ffffff; }
.btn-secondary { background: #ffffff; color: var(--ink); }
.btn-primary:focus-visible, .btn-secondary:focus-visible {
  outline: 3px solid #ffd166;
  outline-offset: 2px;
}

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 3rem;
}

section { margin: 2.5rem 0; }

h2 {
  font-size: 1.35rem;
  border-bottom: 2px solid var(--line);
  padding-bottom: 0.4rem;
}

.steps { padding-left: 1.2rem; }
.steps li { margin-bottom: 0.6rem; }

.note {
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
}

/* Visibly-empty slots for content the owner still has to supply */
.empty-slot {
  border: 2px dashed var(--accent);
  border-radius: 6px;
  background: #eaf4f6;
  padding: 0.9rem 1rem;
  color: var(--accent-dark);
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 1.25rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted);
}

.btn-disabled {
  opacity: 0.75;
  cursor: not-allowed;
}