/* ==========================================================
   OZA PUBLICIDAD · ESTILOS COMUNES A TODAS LAS PÁGINAS
   (variables, base, accesibilidad, cabecera, pie, botones,
   tarjetas y bloque CTA). Los estilos propios de cada página
   van en un <style> dentro de esa página.
   ========================================================== */
:root{
  --navy:#0d5fb3;
  --navy-2:#0a4a96;
  --blue:#025197;
  --blue-2:#046ac4;
  --sky:#bfe0ff;
  --sun:#ffc933;          /* acento cálido */
  --ink:#14213d;
  --muted:#4a5568;        /* 7.5:1 sobre blanco */
  --line:#dbe3ee;
  --paper:#ffffff;
  --mist:#f1f7fd;
  --radius:20px;
  --maxw:1200px;
  --font-title:"Trebuchet MS","Segoe UI",Arial,sans-serif;
  --font-base:Arial,"Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-base);color:var(--ink);background:var(--paper);line-height:1.65;font-size:1.0625rem;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--blue)}
h1,h2,h3{font-family:var(--font-title);line-height:1.08;margin:0;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}

/* ---------- Accesibilidad ---------- */
.skip-link{position:absolute;left:1rem;top:-100px;z-index:9999;padding:.75rem 1rem;background:#fff;color:var(--blue);border:3px solid var(--blue);border-radius:6px;font-weight:700}
.skip-link:focus{top:1rem}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px}
.on-light :focus-visible,header :focus-visible,main :focus-visible{outline-color:var(--blue-2)}
.dark :focus-visible,footer :focus-visible{outline-color:var(--sun)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
@media (forced-colors:active){
  :focus-visible{outline:3px solid CanvasText}
  .btn{border:2px solid ButtonText}
}

/* ---------- Utilidades ---------- */
.wrap{width:min(100% - 2.5rem,var(--maxw));margin-inline:auto}
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:.8125rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.eyebrow::before{content:"";width:2rem;height:3px;background:currentColor;border-radius:2px}
.dark .eyebrow{color:#ffe08a}
.section{padding:clamp(4rem,9vw,7.5rem) 0}
.section-head{max-width:46rem;margin-bottom:clamp(2rem,5vw,3.5rem)}
.section-head h2{font-size:clamp(2rem,4.6vw,3.4rem);margin-top:.9rem}
.section-head p{color:var(--muted);margin-top:1.1rem;font-size:1.15rem}
.dark{background:var(--navy);color:#fff}
.dark .section-head p{color:#e3eefb}
.btn{display:inline-flex;align-items:center;gap:.6rem;min-height:48px;padding:.85rem 1.6rem;border-radius:999px;font-weight:700;text-decoration:none;font-size:1rem;transition:transform .2s,background .2s,box-shadow .2s;border:2px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn-sun{background:var(--sun);color:#1a1a1a}
.btn-sun:hover{background:#ffd75e;box-shadow:0 10px 24px -8px rgba(255,201,51,.6)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-2)}
.btn-ghost{border-color:currentColor;color:inherit;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.arrow{transition:transform .2s}
a:hover .arrow,.btn:hover .arrow{transform:translateX(4px)}

/* ---------- Cabecera ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:76px}
.logo{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--navy);font-family:var(--font-title);font-weight:800;font-size:1.35rem;letter-spacing:.02em}
.logo-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;display:grid;place-items:center;font-size:1.05rem;letter-spacing:0}
.nav-list{display:flex;align-items:center;gap:.25rem}
.nav-list a{display:block;padding:.6rem .85rem;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:.95rem}
.nav-list a:hover{background:var(--mist);color:var(--blue)}
.nav-list a[aria-current="page"]{color:var(--blue);box-shadow:inset 0 -3px 0 var(--blue)}
.nav-list .nav-cta{background:var(--blue);color:#fff;margin-left:.5rem;padding-inline:1.2rem;border-radius:999px}
.nav-list .nav-cta:hover{background:var(--blue-2);color:#fff}
.menu-btn{display:none;min-height:48px;min-width:48px;border:2px solid var(--blue);background:#fff;color:var(--blue);border-radius:12px;font-weight:700;font-size:.95rem;padding:0 1rem;cursor:pointer}

/* ---------- Submenús del menú principal (Televisión, Radio, Prensa y Publicidad Exterior) ---------- */
/* El texto lleva a la página general; la flecha abre la lista (js/submenu.js) */
.nav-list .has-sub{position:relative;display:flex;align-items:center}
.nav-list .has-sub>a{padding-right:.35rem}
.sub-btn{display:grid;place-items:center;width:30px;height:38px;margin-left:-.15rem;padding:0;border:0;border-radius:8px;background:none;color:var(--ink);cursor:pointer}
.sub-btn:hover,.has-sub.open .sub-btn{background:var(--mist);color:var(--blue)}
.sub-btn .chev{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .2s}
.has-sub.open .sub-btn .chev{transform:translateY(2px) rotate(-135deg)}
.sub-list{display:none;position:absolute;top:calc(100% + .45rem);left:0;z-index:110;min-width:240px;padding:.45rem;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 22px 44px -20px rgba(11,31,64,.38)}
.has-sub.open .sub-list{display:block}
.nav-list .sub-list a{padding:.55rem .85rem;font-weight:600}
.sub-list .sub-head{padding:.7rem .85rem .25rem;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sub-list .sub-head:first-child{padding-top:.35rem}
.nav-list .sub-list a[aria-current]{box-shadow:none;background:var(--mist);color:var(--blue);font-weight:700}
/* Pantallas medianas: un poco menos de aire entre opciones para que "Publicidad Exterior" quepa en una línea */
@media (min-width:961px) and (max-width:1180px){
  .nav-list{gap:0}
  .nav-list a{padding-inline:.6rem;font-size:.9rem}
  .nav-list .nav-cta{margin-left:.3rem;padding-inline:1rem}
}
@media (min-width:961px) and (max-width:1060px){
  .nav-list a{padding-inline:.45rem;font-size:.86rem}
  .nav-list .has-sub>a{padding-right:.2rem}
  .sub-btn{width:24px}
}

/* ---------- Servicios ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;counter-reset:s}
.card{position:relative;display:flex;flex-direction:column;background:var(--mist);border:1px solid var(--line);border-radius:var(--radius);padding:2rem 1.8rem 1.8rem;transition:transform .25s,box-shadow .25s,background .25s;overflow:hidden}
.card::before{counter-increment:s;content:"0" counter(s);position:absolute;right:1.2rem;top:.4rem;font-family:var(--font-title);font-weight:900;font-size:4.5rem;color:rgba(2,81,151,.09);line-height:1}
.card:hover{transform:translateY(-6px);box-shadow:0 26px 50px -26px rgba(11,31,64,.45);background:#fff}
.ico{width:56px;height:56px;border-radius:16px;background:var(--blue);color:#fff;display:grid;place-items:center;margin-bottom:1.4rem}
.ico svg{width:28px;height:28px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card:nth-child(3n+2) .ico{background:var(--sun);color:#1a1a1a}
.card h3{font-size:1.5rem;margin-bottom:.7rem;color:var(--navy)}
.card p{color:var(--muted);flex:1}
.more{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;text-decoration:none;color:var(--blue);padding:.4rem 0;min-height:44px}
.more:hover{text-decoration:underline;text-underline-offset:4px}
.card .more::after{content:"";position:absolute;inset:0} /* toda la tarjeta clicable */

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;text-align:center;color:#fff;background:linear-gradient(135deg,var(--blue) 0%,var(--navy-2) 100%)}
.cta::before,.cta::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.cta::before{width:420px;height:420px;left:-140px;bottom:-200px;background:var(--sun);opacity:.9}
.cta::after{width:300px;height:300px;right:-90px;top:-130px;background:rgba(102,178,255,.35)}
.cta .wrap{position:relative;z-index:1}
.cta h2{font-size:clamp(2.2rem,6vw,4.4rem);text-transform:uppercase;font-weight:900;max-width:16ch;margin:0 auto 1.2rem}
.cta p{max-width:36rem;margin:0 auto 2rem;color:#e0ebfb;font-size:1.15rem}
.cta .btns{display:flex;flex-wrap:wrap;gap:.9rem;justify-content:center}

/* ---------- Pie ---------- */
.site-footer{background:var(--navy-2);color:#dbe8f9;padding:clamp(3rem,6vw,5rem) 0 1.5rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:2.5rem}
.site-footer h2{font-size:1rem;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:1.1rem}
.site-footer a{color:#fff;text-underline-offset:3px}
.site-footer li{margin-bottom:.5rem}
.site-footer .logo{color:#fff;margin-bottom:1rem}
.site-footer address{font-style:normal}
/* Enlace a preguntas frecuentes, al final de la columna Contacto */
.foot-faq a{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;text-decoration:none}
.foot-faq a::before{content:"?";display:grid;place-items:center;width:1.5rem;height:1.5rem;border-radius:50%;background:var(--sun);color:var(--navy-2);font-size:.85rem;font-weight:900}
.foot-faq a:hover,.foot-faq a:focus-visible{text-decoration:underline}
.foot-brand{display:block;width:100%;height:auto;margin-top:2.5rem;overflow:visible;user-select:none;pointer-events:none}
.foot-brand text{font-family:var(--font-title);font-weight:900;letter-spacing:-.01em;fill:url(#foot-brand-fade)}
.foot-brand + .foot-bottom{margin-top:1.25rem}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;margin-top:3rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.15);font-size:.9rem}
.foot-bottom ul{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem}
.foot-bottom li{margin:0}

/* ---------- Responsive (común) ---------- */
@media (max-width:1100px){
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
  .menu-btn{display:inline-flex;align-items:center}
  .site-nav{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);display:none;padding:.75rem 1.25rem 1.25rem}
  .site-nav.open{display:block}
  .nav-list{flex-direction:column;align-items:stretch}
  .nav-list a{padding:.9rem 1rem}
  .nav-list .nav-cta{margin:.5rem 0 0;text-align:center}
  .site-nav{max-height:calc(100vh - 76px);max-height:calc(100svh - 76px);overflow-y:auto}
  .nav-list .has-sub{flex-wrap:wrap}
  .nav-list .has-sub>a{flex:1;padding-right:1rem}
  .sub-btn{width:48px;height:48px;margin:0}
  .sub-list{position:static;width:calc(100% - 1rem);min-width:0;margin:.15rem 0 .4rem 1rem;padding:0 0 0 .6rem;border:0;border-left:2px solid var(--line);border-radius:0;box-shadow:none}
  .nav-list .sub-list a{padding:.7rem 1rem}
  .cards{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  body{font-size:1rem}
  .cards{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .btn{width:100%;justify-content:center}
  .cta .btn{width:100%}
}