/* ============ Unidad de Cardiología San Juan — sistema visual v2 ============ */
@font-face{font-family:'Barlow Condensed';src:url(fonts/barlow-condensed-latin-600-normal.woff2) format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'Barlow Condensed';src:url(fonts/barlow-condensed-latin-700-normal.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Barlow Condensed';src:url(fonts/barlow-condensed-latin-800-normal.woff2) format('woff2');font-weight:800;font-display:swap}
@font-face{font-family:'Barlow';src:url(fonts/barlow-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Barlow';src:url(fonts/barlow-latin-500-normal.woff2) format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Barlow';src:url(fonts/barlow-latin-600-normal.woff2) format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'Barlow';src:url(fonts/barlow-latin-700-normal.woff2) format('woff2');font-weight:700;font-display:swap}

:root{
  /* Colores del isotipo */
  --rojo:#DB000C;          /* trazo claro del corazón */
  --granate:#970E1D;       /* trazo oscuro del corazón */
  --noche:#22070C;         /* secciones oscuras */
  --tinta:#1D1416;
  --gris:#5B5153;
  --piedra:#F4F2F3;        /* fondo alterno */
  --linea:#E6E0E1;
  --whatsapp:#1FAF54;
  /* compatibilidad con páginas interiores */
  --granate-oscuro:#3A0B13; --granate-suave:#C4525E; --marfil:#F4F2F3;
  --f-display:'Barlow Condensed','Arial Narrow',sans-serif;
  --f-body:'Barlow',system-ui,sans-serif;
  --max:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--f-body);color:var(--tinta);background:#fff;line-height:1.6;font-size:17px}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--rojo);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.02;letter-spacing:-.005em}
h2{font-size:clamp(34px,4.6vw,52px);margin-bottom:18px}
h3{font-family:var(--f-body);font-weight:700;line-height:1.25;letter-spacing:0}
section{padding:96px 0}
.eyebrow{font-family:var(--f-body);font-size:15px;font-weight:600;color:var(--rojo);display:block;margin-bottom:10px;letter-spacing:0;text-transform:none}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 26px;border-radius:999px;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;border:none;font-family:inherit;transition:transform .15s ease,background-color .15s ease,box-shadow .15s ease;line-height:1.2}
.btn:hover{transform:translateY(-1px)}
.btn svg{width:20px;height:20px;flex-shrink:0}
.btn-wa{background:var(--whatsapp);color:#fff;box-shadow:0 10px 24px -12px rgba(31,175,84,.7)}
.btn-wa:hover{background:#19994a}
.btn-rojo,.btn-granate{background:var(--rojo);color:#fff}
.btn-rojo:hover,.btn-granate:hover{background:#B8000A}
.btn-linea{background:transparent;color:var(--tinta);border:1.5px solid currentColor}
.btn-claro{background:#fff;color:var(--noche)}

/* Navegación */
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--linea)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.marca{display:flex;align-items:center;gap:11px;text-decoration:none;flex-shrink:0}
.marca img{height:46px;width:auto}
.pie .marca img{height:54px}
.marca-t{display:flex;flex-direction:column;line-height:1}
.marca-t b{font-family:var(--f-display);font-weight:800;font-size:27px;color:var(--rojo);letter-spacing:.01em}
.marca-t small{font-size:11.5px;font-weight:600;color:var(--granate);margin-top:3px;letter-spacing:.02em}
.nav-links{display:flex;gap:26px;list-style:none;align-items:center}
.nav-links a{text-decoration:none;font-size:15.5px;font-weight:500;color:var(--tinta);white-space:nowrap;padding:6px 0;border-bottom:2px solid transparent}
.nav-links a:hover{color:var(--rojo)}
.nav-links a[aria-current="page"]{color:var(--rojo);border-bottom-color:var(--rojo)}
.nav-links .nav-cta{background:var(--rojo);color:#fff;padding:10px 20px;border-radius:999px;border:none;font-weight:600}
.nav-links .nav-cta:hover{background:#B8000A;color:#fff}
.menu-btn{display:none;background:none;border:none;width:44px;height:44px;cursor:pointer;color:var(--tinta);align-items:center;justify-content:center}
.menu-btn svg{width:26px;height:26px}

/* Barra fija móvil */
.barra-movil{display:none}

/* Pie */
.pie{background:var(--noche);color:#D9C6C8;padding:72px 0 40px;font-size:15px}
.pie-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:40px}
.pie .marca-t b{color:#fff}
.pie .marca-t small{color:#E59AA2}
.pie p.lema{font-family:var(--f-display);font-size:30px;font-weight:700;color:#fff;margin:22px 0 10px;line-height:1}
.pie h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.pie a{color:#D9C6C8;text-decoration:none}
.pie a:hover{color:#fff}
.pie ul{list-style:none}
.pie li{padding:4px 0}
.pie-base{border-top:1px solid rgba(255,255,255,.12);margin-top:52px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13.5px;color:#A8908F}

@media (max-width:1080px){
  .nav-links{gap:18px}
  .nav-links a{font-size:14.5px}
  .pie-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .menu-btn{display:flex}
  .nav-links{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 24px 24px;gap:0;border-bottom:1px solid var(--linea);box-shadow:0 20px 40px -24px rgba(0,0,0,.3)}
  .nav-links.abierto{display:flex}
  .nav-links li a{display:block;padding:14px 0;font-size:18px;border-bottom:1px solid var(--linea)}
  .nav-links li:last-child a{margin-top:16px;text-align:center;border:none}
  .pie{padding-bottom:110px}
  .barra-movil{display:grid;grid-template-columns:1.4fr 1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--linea);padding:8px 10px calc(8px + env(safe-area-inset-bottom));gap:8px;box-shadow:0 -10px 30px -20px rgba(0,0,0,.35)}
  .barra-movil a{display:flex;align-items:center;justify-content:center;gap:7px;padding:12px 6px;border-radius:12px;font-weight:600;font-size:14.5px;text-decoration:none;color:var(--tinta);background:var(--piedra)}
  .barra-movil a svg{width:19px;height:19px;flex-shrink:0}
  .barra-movil a.wa{background:var(--whatsapp);color:#fff}
}
@media (max-width:620px){
  section{padding:68px 0}
  .wrap{padding:0 18px}
  .pie-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}