:root {
  --noche: #072420; --noche2: #0B2B26; --petroleo: #0F766E; --tinta: #0B2B26; --menta: #34D399;
  --claro: #F0FDFA; --borde: #CBE7E1; --suave: #4B6761; --fondo: #F6FBFA; --aptis: #0F766E; --delf: #2563EB;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--fondo); color: var(--tinta); font: 17px/1.55 "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif; }
a { color: inherit; }
.ancho { width: 100%; max-width: 520px; margin: 0 auto; padding: 0 20px; }

.cab { background: var(--noche); padding: 14px 0; }
.cab-in { max-width: 520px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; gap: 12px; }
.cab img { display: block; border-radius: 11px; }
.cab-txt { display: flex; flex-direction: column; line-height: 1.15; }
.marca { color: #fff; font-weight: 800; font-size: 24px; letter-spacing: -.5px; }
.lema { color: #A7C4BF; font-size: 13px; }

.hero { background: linear-gradient(180deg, var(--noche) 0%, var(--noche2) 100%); color: #E6EFEE; padding: 26px 0 0; overflow: hidden; }
.kicker { margin: 0 0 10px; color: var(--menta); font-weight: 700; font-size: 14px; letter-spacing: .4px; text-transform: uppercase; }
h1 { margin: 0 0 14px; font-size: 32px; line-height: 1.14; letter-spacing: -.8px; color: #fff; }
.sub { margin: 0 0 22px; color: #C9DCD9; font-size: 17px; }
.botones { display: grid; gap: 10px; }

.btn {
  display: block; text-align: center; text-decoration: none; font-weight: 700; font-size: 17px; line-height: 1.2;
  padding: 15px 18px; border-radius: 14px; border: 2px solid transparent;
}
.btn.principal { background: var(--menta); color: var(--noche); }
.btn.principal:hover { background: #4ADE80; }
.btn.borde { border-color: rgba(52,211,153,.7); color: #fff; background: rgba(52,211,153,.12); }
.btn.borde:hover { background: rgba(52,211,153,.24); }
.btn.borde-oscuro { border-color: var(--petroleo); color: var(--petroleo); background: #fff; }
.btn.borde-oscuro:hover { background: var(--claro); }
.btn.chico { font-size: 16px; padding: 12px 16px; }
.btn:focus-visible, .red:focus-visible { outline: 3px solid rgba(52,211,153,.8); outline-offset: 2px; }

.telefono { margin: 30px auto 0; width: 220px; height: 330px; overflow: hidden; }
.telefono img {
  display: block; width: 220px; height: auto; border: 8px solid #12403A; border-bottom: 0; border-radius: 34px 34px 0 0;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08);
}

.bloque { padding: 22px 0 30px; }
.bloque.claro { background: var(--claro); border-top: 1px solid var(--borde); border-bottom: 1px solid var(--borde); padding: 28px 0; }
.nota-img { margin: 0 0 22px; text-align: center; font-size: 12.5px; color: var(--suave); }
h2 { margin: 0 0 16px; font-size: 24px; letter-spacing: -.4px; }
.curso { background: #fff; border: 1.5px solid var(--borde); border-radius: 18px; padding: 18px; margin: 0 0 14px; }
.curso h3 { margin: 8px 0 6px; font-size: 21px; letter-spacing: -.3px; }
.curso p { margin: 0 0 14px; color: var(--suave); font-size: 16px; }
.curso-cab { display: flex; gap: 8px; flex-wrap: wrap; }
.etq { display: inline-block; font-size: 12.5px; font-weight: 700; padding: 3px 10px; border-radius: 999px; color: #fff; }
.etq.aptis { background: var(--aptis); }
.etq.delf { background: var(--delf); }
.etq.pronto { background: #FEF3C7; color: #92400E; border: 1px solid #F59E0B; }

.pasos { list-style: none; counter-reset: p; margin: 0 0 20px; padding: 0; display: grid; gap: 14px; }
.pasos li { counter-increment: p; position: relative; padding-left: 50px; }
.pasos li::before {
  content: counter(p); position: absolute; left: 0; top: 0; width: 36px; height: 36px; border-radius: 50%;
  background: var(--noche); color: var(--menta); font-weight: 800; display: grid; place-items: center;
}
.pasos b { display: block; font-size: 17px; }
.pasos span { color: var(--suave); font-size: 15.5px; }
.incluye { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.incluye li { background: #fff; border: 1.5px solid var(--borde); border-radius: 999px; padding: 7px 14px; font-size: 14.5px; font-weight: 600; }

.enlaces { background: var(--noche); color: #E6EFEE; padding: 30px 0 34px; }
.enlaces h2 { color: #fff; }
.redes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 12px 0; }
.red {
  display: flex; flex-direction: column; align-items: center; gap: 6px; text-decoration: none; color: #E6EFEE;
  border: 1.5px solid rgba(255,255,255,.28); border-radius: 14px; padding: 14px 6px; font-weight: 700; font-size: 14.5px;
}
.red:hover { border-color: var(--menta); color: #fff; }
.red svg { width: 26px; height: 26px; display: block; }
.btn.wa { display: flex; align-items: center; justify-content: center; gap: 10px; border-color: rgba(255,255,255,.28); color: #fff; font-size: 16px; }
.btn.wa:hover { border-color: var(--menta); }
.btn.wa svg { width: 22px; height: 22px; flex: none; }

.pie { background: #041815; color: #8FA9A4; font-size: 12.5px; padding: 18px 0 26px; }
.pie p { margin: 0; }
@media (min-width: 560px) { h1 { font-size: 36px; } }