:root {
  --bg: #f3f7f6; --surface: #ffffff; --ink: #12302e; --muted: #4d6a67; --line: #d3e2df;
  --teal: #00695c; --teal-2: #26a69a; --teal-soft: #e0f2f1; --amber: #ffb300; --amber-soft: #fff8e1;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1a19; --surface: #13241f; --ink: #e4f1ee; --muted: #9fbab5; --line: #24403b;
    --teal: #4fc3b8; --teal-2: #26a69a; --teal-soft: #173a35; --amber-soft: #2e2610; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1a19; --surface: #13241f; --ink: #e4f1ee; --muted: #9fbab5; --line: #24403b;
  --teal: #4fc3b8; --teal-2: #26a69a; --teal-soft: #173a35; --amber-soft: #2e2610; color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "Segoe UI", system-ui, sans-serif;
       font-size: 17px; line-height: 1.6; }
a { color: var(--teal); font-weight: 600; }
.ancho { max-width: 960px; margin: 0 auto; padding: 0 16px; }
header.barra { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0; }
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.marca img { width: 40px; height: 40px; }
.marca b { font-size: 20px; }
.idioma { font-size: 15px; }
.portada { background: linear-gradient(135deg, #00695c, #26a69a); color: #fff; border-radius: 18px;
           padding: 36px 28px; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.portada > div { min-width: 0; }
h1, h2, p, li { overflow-wrap: break-word; }
.portada h1 { font-size: clamp(28px, 4.5vw, 42px); line-height: 1.15; margin: 0 0 12px; }
.portada p { margin: 0 0 18px; color: #fff; opacity: .95; font-size: 18px; }
.portada img { width: 180px; height: 180px; filter: drop-shadow(0 8px 18px rgba(0,0,0,.25)); }
.boton { display: inline-block; background: #fff; color: #00695c; padding: 12px 20px; border-radius: 10px;
         text-decoration: none; font-weight: 700; }
.boton.claro { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.7); margin-left: 8px; }
.aviso-beta { display: inline-block; background: var(--amber); color: #3b2a00; font-weight: 700; font-size: 14px;
              padding: 3px 12px; border-radius: 99px; margin-bottom: 12px; }
section { margin: 40px 0; }
h2 { color: var(--teal); font-size: 26px; margin: 0 0 14px; }
h3 { margin: 0 0 6px; font-size: 18px; }
p { margin: 0 0 12px; color: var(--muted); }
.pasos { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.tarjeta { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.num { display: inline-flex; width: 32px; height: 32px; border-radius: 50%; background: var(--teal-soft);
       color: var(--teal); font-weight: 800; align-items: center; justify-content: center; margin-bottom: 8px; }
ul.ventajas { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
ul.ventajas li { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; }
ul.ventajas b { display: block; color: var(--ink); margin-bottom: 4px; }
ul.ventajas span { color: var(--muted); }
.lista { margin: 0; padding-left: 20px; color: var(--muted); }
.lista li { margin: 4px 0; }
.privado { background: var(--teal-soft); border-radius: 14px; padding: 20px; }
.cta { background: var(--amber-soft); border: 1px solid var(--line); border-left: 6px solid var(--amber);
       border-radius: 14px; padding: 22px; }
footer { border-top: 1px solid var(--line); margin-top: 48px; padding: 20px 0 40px; font-size: 13px; color: var(--muted); }
footer p { font-size: 13px; }
.legal h2 { margin-top: 28px; font-size: 22px; }
.legal { padding-bottom: 20px; }
@media (max-width: 640px) {
  .portada { grid-template-columns: 1fr; text-align: left; padding: 26px 20px; }
  .portada img { width: 110px; height: 110px; order: -1; }
  .boton.claro { margin: 10px 0 0; }
}