:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1c1b19;
  --muted: #5f5b54;
  --line: #e7e3db;
  --brand: #0f5b4f;
  --brand-ink: #ffffff;
  --accent: #c8f0e2;
  --radius: 14px;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131412;
    --surface: #1b1c1a;
    --text: #f1efe9;
    --muted: #b2ada3;
    --line: #2d2e2b;
    --brand: #5fd3b4;
    --brand-ink: #0b1f1a;
    --accent: #17352e;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

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

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Encabezado */
.top { border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-weight: 700; font-size: 22px; letter-spacing: -0.02em; color: var(--text); text-decoration: none; }
.logo span { color: var(--brand); }
.nav a { color: var(--muted); text-decoration: none; margin-left: 22px; font-size: 15px; }
.nav a:hover { color: var(--text); }
.nav a.btn, .nav a.btn:hover { color: var(--brand-ink); }
.nav a.btn.ghost, .nav a.btn.ghost:hover { color: var(--text); }

/* Botones */
.btn {
  display: inline-block;
  background: var(--brand);
  color: var(--brand-ink);
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
}
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }

/* Portada */
.hero { padding: 88px 0 64px; }
.eyebrow {
  display: inline-block;
  background: var(--accent);
  color: var(--text);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 14px;
  margin-bottom: 20px;
}
.hero h1 { font-size: clamp(34px, 5.2vw, 58px); line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 20px; max-width: 16ch; }
.hero p.lead { font-size: clamp(18px, 2vw, 21px); color: var(--muted); max-width: 60ch; margin: 0 0 32px; }
.hero .ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* Secciones */
section { padding: 56px 0; }
section h2 { font-size: clamp(26px, 3.2vw, 36px); letter-spacing: -0.02em; margin: 0 0 12px; }
section p.sub { color: var(--muted); margin: 0 0 36px; max-width: 62ch; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }

.steps { counter-reset: paso; }
.steps .card h3::before {
  counter-increment: paso;
  content: counter(paso);
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--accent);
  font-size: 15px;
}

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

.cta-final { text-align: center; padding: 80px 0; }
.cta-final p { color: var(--muted); max-width: 52ch; margin: 0 auto 28px; }

/* Páginas legales */
.legal { padding: 56px 0 80px; max-width: 760px; }
.legal h1 { font-size: 38px; letter-spacing: -0.02em; margin: 0 0 8px; }
.legal .updated { color: var(--muted); margin: 0 0 36px; }
.legal h2 { font-size: 22px; margin: 36px 0 10px; }
.legal li { margin-bottom: 6px; }

/* Pie */
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }
footer a { color: var(--muted); }
footer nav a { margin-right: 18px; }

@media (max-width: 640px) {
  .nav a:not(.btn) { display: none; }
  .hero { padding: 56px 0 40px; }
}