/* MasterReach — hoja de estilos del sitio */
:root{
  --azul:#0C4A7C; --azul-osc:#093A63; --acento:#207FC3; --claro:#7FB3DC;
  --texto:#23282D; --suave:#5E6B76; --linea:#DFE6EC; --fondo:#FFFFFF; --gris:#F5F8FA;
  --ancho:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{font-family:'Open Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--texto);background:var(--fondo);line-height:1.65;font-size:17px;
  -webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--acento)}
.wrap{max-width:var(--ancho);margin:0 auto;padding:0 24px}

/* ---------- barra ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--linea)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:74px}
.nav img{height:34px;width:auto}
.nav nav{display:flex;gap:28px;align-items:center}
.nav nav a{color:var(--suave);text-decoration:none;font-size:15px;font-weight:600}
.nav nav a:hover{color:var(--azul)}
.nav .cta{background:var(--acento);color:#fff;padding:11px 22px;border-radius:6px;
  font-size:15px;font-weight:700;text-decoration:none;white-space:nowrap}
.nav .cta:hover{background:var(--azul)}
@media(max-width:820px){.nav nav a:not(.cta){display:none}.nav .wrap{height:66px}}

/* ---------- tipografía ---------- */
h1,h2,h3{font-family:'League Spartan','Open Sans',sans-serif;
  letter-spacing:-.02em;line-height:1.1;font-weight:700}
h1{font-size:clamp(34px,5.2vw,58px)}
h2{font-size:clamp(27px,3.4vw,38px);color:var(--azul);margin-bottom:18px}
h3{font-size:20px;margin-bottom:8px;letter-spacing:-.01em}
.kicker{font-size:13px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--acento);margin-bottom:18px}
/* la marca NUNCA se transforma a mayúsculas: siempre «MasterReach» */
.marca-txt{text-transform:none;letter-spacing:.06em}
.lead{font-size:19px;color:var(--suave)}

/* ---------- secciones ---------- */
section{padding:84px 0;border-top:1px solid var(--linea)}
section.gris{background:var(--gris)}
section:first-of-type{border-top:0}

/* ---------- héroe ---------- */
.hero{background:linear-gradient(160deg,#0C4A7C 0%,#093A63 100%);color:#fff;
  padding:88px 0 96px;border:0}
.hero h1{color:#fff}
.hero .kicker{color:var(--claro)}
.hero .grid{display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:center}
.hero p.sub{font-size:20px;color:#C5DEF2;margin:22px 0 34px;max-width:30em}
.hero img{border-radius:8px;box-shadow:0 24px 60px rgba(0,0,0,.42);width:100%}
@media(max-width:860px){.hero .grid{grid-template-columns:1fr;gap:40px}
  .hero .arte{max-width:290px;margin:0 auto}}

.botones{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:16px 30px;border-radius:7px;font-weight:700;
  text-decoration:none;font-size:16px;transition:.15s}
.btn-1{background:#fff;color:var(--azul)}
.btn-1:hover{background:var(--claro)}
.btn-2{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.45)}
.btn-2:hover{box-shadow:inset 0 0 0 2px #fff}
.btn-3{background:var(--acento);color:#fff}
.btn-3:hover{background:var(--azul)}
.nota{font-size:14px;color:#8FB8D8;margin-top:18px}

/* ---------- cifras ---------- */
.cifras{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:8px}
.cifra{border-top:4px solid var(--acento);padding-top:18px}
.cifra b{display:block;font-family:'League Spartan',sans-serif;font-size:46px;
  line-height:1;color:var(--azul)}
.cifra span{display:block;margin-top:6px;font-size:15px;color:var(--suave)}
@media(max-width:700px){.cifras{grid-template-columns:repeat(2,1fr);gap:24px}}

/* ---------- tarjetas ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:34px}
.card{background:#fff;border:1px solid var(--linea);border-radius:10px;padding:28px}
.card h3{color:var(--azul)}
.card p{font-size:16px;color:var(--suave)}
@media(max-width:760px){.cards{grid-template-columns:1fr}}

/* ---------- índice del libro ---------- */
.indice{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;margin-top:30px}
.parte{grid-column:1/-1;font-family:'League Spartan',sans-serif;font-size:14px;
  font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--acento);
  margin:30px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--linea)}
.parte:first-child{margin-top:0}
.cap{display:flex;gap:14px;padding:9px 0;font-size:16px;align-items:baseline}
.cap b{font-family:'League Spartan',sans-serif;color:var(--claro);font-size:15px;
  min-width:22px}
@media(max-width:760px){.indice{grid-template-columns:1fr}}

/* ---------- lista de palomas ---------- */
ul.check{list-style:none;margin-top:22px}
ul.check li{position:relative;padding:9px 0 9px 34px;font-size:16.5px}
ul.check li::before{content:"";position:absolute;left:2px;top:17px;width:9px;height:9px;
  border-radius:50%;background:var(--acento)}

/* ---------- bloque destacado ---------- */
.destacado{background:var(--azul);color:#fff;border-radius:12px;padding:44px}
.destacado h2{color:#fff}
.destacado p{color:#C5DEF2}
.destacado .cifra b{color:#fff}
.destacado .cifra span{color:#9CC6E6}
.destacado .cifra{border-color:var(--claro)}

/* ---------- autor ---------- */
.autor{display:grid;grid-template-columns:auto 1fr;gap:34px;align-items:start}
.sello{width:112px;height:112px;border-radius:12px;background:var(--azul);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:'League Spartan',sans-serif;
  font-size:42px;font-weight:700;letter-spacing:-.04em;flex-shrink:0}
@media(max-width:640px){.autor{grid-template-columns:1fr}}

/* ---------- contacto ---------- */
.contacto{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:30px}
.vcard{border:1px solid var(--linea);border-radius:10px;padding:26px;background:#fff}
.vcard span{display:block;font-size:13px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--suave);margin-bottom:8px}
.vcard span.marca-txt{text-transform:none;letter-spacing:.06em}
.vcard a{font-size:18px;font-weight:700;text-decoration:none;word-break:break-word}
@media(max-width:640px){.contacto{grid-template-columns:1fr}}

/* ---------- pie ---------- */
footer{background:var(--azul-osc);color:#9CC6E6;padding:56px 0 44px;font-size:14.5px}
footer .marca-pie{display:inline-block;background:#fff;padding:14px 20px;
  border-radius:8px;margin-bottom:24px}
footer .marca-pie img{height:30px;width:auto}
footer a{color:var(--claro)}
footer .legal{margin-top:22px;font-size:13px;line-height:1.7;color:#6F9CC0;
  max-width:62em}
footer .barra{margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;gap:22px;flex-wrap:wrap;justify-content:space-between}
footer .barra a{margin-right:20px}

/* ---------- páginas de texto ---------- */
.texto{padding:66px 0 84px}
.texto h1{color:var(--azul);margin-bottom:10px}
.texto h2{font-size:24px;margin:38px 0 12px}
.texto p{margin-bottom:14px}
.texto ul{margin:0 0 16px 22px}
.texto li{margin-bottom:7px}