/* gessync.com — páginas de prueba gratuita y descargas (la portada lleva su estilo dentro). */
:root{--p:#017cba;--s:#00b2e2;--t:#2c3338;--m:#646970;--osc:#0f2a3d;--borde:#e3eaf0;--caja:#fff;--ok:#0f7b3f;--okf:#ecfdf3;--mal:#b42318;--malf:#fef3f2}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--t);
background:radial-gradient(900px 500px at 80% -10%,#d9f3fc 0%,rgba(217,243,252,0) 60%),linear-gradient(180deg,#f5fbff,#fff) fixed}
a{color:var(--p)}
.cab{max-width:960px;margin:0 auto;padding:18px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.marca{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--osc);font-weight:700;font-size:1.25rem}
.marca img{width:40px;height:40px}
.nav{display:flex;gap:6px 18px;flex-wrap:wrap}
.nav a{text-decoration:none;color:var(--m);font-weight:600}
.nav a:hover,.nav a[aria-current]{color:var(--p)}
main{max-width:960px;margin:0 auto;padding:8px 16px 56px}
.intro{text-align:center;max-width:680px;margin:18px auto 32px}
h1{font-size:clamp(1.9rem,5vw,2.7rem);margin:0 0 12px;color:var(--osc);letter-spacing:-.02em;line-height:1.15}
h1 span{background:linear-gradient(90deg,var(--p),var(--s));-webkit-background-clip:text;background-clip:text;color:transparent}
.intro p{font-size:1.1rem;line-height:1.6;color:var(--m);margin:0}
h2{font-size:1.3rem;margin:0 0 6px;color:var(--osc)}
p{line-height:1.6}
.rejilla{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.tarjeta{background:var(--caja);border:1px solid var(--borde);border-radius:14px;padding:22px;box-shadow:0 6px 24px rgba(15,42,61,.06);display:flex;flex-direction:column}
.tarjeta p{color:var(--m);margin:0 0 16px}
.tarjeta .pie{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.etiqueta{display:inline-block;font-size:.8rem;font-weight:700;color:var(--p);background:#e6f5fc;border-radius:999px;padding:3px 10px;margin-bottom:10px;align-self:flex-start}
.btn{display:inline-block;text-align:center;background:var(--p);color:#fff;text-decoration:none;font-weight:600;padding:12px 20px;border-radius:8px;border:0;font-size:1rem;cursor:pointer;font-family:inherit}
.btn:hover{background:#01699e}
.btn[disabled]{opacity:.6;cursor:wait}
.btn.sec{background:#fff;color:var(--p);border:1.5px solid var(--p)}
.btn.sec:hover{background:#f0f9ff}
.enlaces{display:flex;flex-wrap:wrap;gap:4px 16px;font-size:.95rem}
.lista{margin:0 0 16px;padding-left:1.2em;color:var(--m);line-height:1.6}
.ancha{max-width:640px;margin:0 auto}
form .campo{margin:0 0 16px}
label{display:block;font-weight:600;margin:0 0 6px;color:var(--osc)}
.ayuda{font-size:.9rem;color:var(--m);margin:4px 0 0}
input[type=email],input[type=text]{width:100%;padding:11px 12px;border:1.5px solid #cfd8e0;border-radius:8px;font-size:1rem;font-family:inherit;background:#fff;color:var(--t)}
input:focus{outline:none;border-color:var(--p);box-shadow:0 0 0 3px rgba(1,124,186,.15)}
.opciones{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.opcion{display:flex;align-items:center;gap:8px;border:1.5px solid #cfd8e0;border-radius:8px;padding:11px 12px;font-weight:600;cursor:pointer}
.opcion:has(input:checked){border-color:var(--p);background:#f0f9ff}
.casilla{display:flex;gap:8px;align-items:flex-start;font-weight:400;color:var(--m);font-size:.95rem}
.casilla input{margin-top:4px}
.aviso{border-radius:10px;padding:14px 16px;margin:0 0 18px;line-height:1.5}
.aviso.ok{background:var(--okf);color:var(--ok);border:1px solid #abefc6}
.aviso.mal{background:var(--malf);color:var(--mal);border:1px solid #fecdca}
.pasos{counter-reset:p;list-style:none;padding:0;margin:0}
.pasos li{counter-increment:p;position:relative;padding:0 0 12px 40px;color:var(--m);line-height:1.5}
.pasos li::before{content:counter(p);position:absolute;left:0;top:-2px;width:28px;height:28px;border-radius:50%;background:#e6f5fc;color:var(--p);font-weight:700;display:flex;align-items:center;justify-content:center}
.nota{text-align:center;color:var(--m);margin:28px auto 0;max-width:680px}
footer{text-align:center;color:#8a949b;font-size:.85rem;padding:0 16px 32px}
footer a{color:inherit}
@media (max-width:480px){.opciones{grid-template-columns:1fr}}