/* Estilos compartidos de las páginas de contenido (técnicas, preguntas frecuentes y página 404).
   Paleta inmutable: fondo #ffffff · texto #0b1a2a · acento #d5a44a · WhatsApp #25D366.
   Las tipografías se cargan desde fonts/fonts.css. */
:root{
  --gold:#D5A44A;
  --gold-dark:#8F6820; /* contraste AA (5:1) sobre blanco */
  --navy:#0B1A2A;
  --text:#0B1A2A;
  --muted:rgba(11,26,42,.72);
  --soft:#F5F7FA;
  --tint:#FBF6EA;
  --line:rgba(11,26,42,.12);
  --white:#FFFFFF;
  --radius:14px;
  --maxw:1200px;
  --header-h:68px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Work Sans',sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.7;
}
img{max-width:100%;display:block;}
a{color:var(--gold-dark);}
a:focus-visible,button:focus-visible{outline:2px solid var(--gold-dark);outline-offset:2px;border-radius:4px;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
p{margin:0 0 1em;}

/* Botones */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  background:var(--gold);color:var(--navy);font-weight:600;
  padding:.95em 2.1em;border-radius:10px;text-decoration:none;border:none;cursor:pointer;
  font-size:1rem;line-height:1.3;
  box-shadow:0 10px 24px -6px rgba(213,164,74,.45);
  transition:background .25s ease, color .25s ease, box-shadow .25s ease;
}
.btn:hover{background:var(--gold-dark);color:#fff;box-shadow:0 14px 30px -6px rgba(143,104,32,.5);}
.btn-outline{background:transparent;color:var(--gold-dark);border:1.5px solid var(--gold);box-shadow:none;}
.btn-outline:hover{background:var(--gold);color:var(--navy);box-shadow:none;}
.btn-wa{background:#25D366;color:var(--navy);box-shadow:none;}
.btn-wa:hover{background:#1FB857;color:var(--navy);box-shadow:none;}
.btn-sm{padding:.6em 1.15em;font-size:.9rem;box-shadow:none;}
.btn svg{width:18px;height:18px;fill:currentColor;flex:0 0 auto;}

/* Cabecera fija */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1.2em;min-height:var(--header-h);}
/* Logotipo «Dr. Félix Campos · Cirugía y medicina capilar» (imagen 600×114): encoge antes que el menú. */
.logo{display:block;flex:0 100000 auto;min-width:0;line-height:0;}
.logo-img{display:block;width:185px;max-width:100%;height:auto;}
@media (min-width:961px){.site-header .logo{min-width:127px;}}
.site-nav{display:flex;align-items:center;gap:1.8em;}
.site-nav a{font-size:.92rem;font-weight:600;text-decoration:none;color:var(--navy);transition:color .2s ease;}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--gold-dark);}
.header-actions{display:flex;align-items:center;gap:.55em;}
@media (max-width:960px){.site-nav{display:none;}}
@media (max-width:520px){
  .logo-img{width:min(40vw,148px);}
  .site-header .wrap{padding:0 16px;gap:.6em;}
  .header-actions .call-num{display:none;}
  .header-actions .btn-sm{padding:.6em .9em;}
}

/* Cabecera de página */
.page-hero{background:var(--soft);border-bottom:3px solid var(--gold);padding:2.4em 0 2.6em;}
.page-hero .wrap{max-width:860px;}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:.3em;margin:0 0 1.6em;padding:0;font-size:.85rem;color:var(--muted);}
.breadcrumb li+li::before{content:"›";margin-right:.35em;color:var(--gold-dark);}
.breadcrumb a{color:var(--muted);text-decoration:none;}
.breadcrumb a:hover{color:var(--gold-dark);text-decoration:underline;}
.eyebrow{
  display:inline-flex;align-items:center;gap:.65em;
  font-family:'Montserrat',sans-serif;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-dark);font-weight:700;line-height:1.25;margin:0 0 .8em;
}
.eyebrow::before{
  content:"";width:26px;height:2px;flex:0 0 auto;
  background:linear-gradient(90deg,var(--gold),var(--gold-dark));border-radius:2px;
}
h1,h2,h3{font-family:'Montserrat',sans-serif;color:var(--navy);line-height:1.25;}
h1{font-size:clamp(2rem,4.5vw,2.9rem);font-weight:800;letter-spacing:-.015em;margin:0 0 .45em;}
.page-intro{font-size:1.12rem;color:var(--muted);margin:0;max-width:720px;}

/* Contenido */
.article{padding:3em 0 4.5em;}
.article .wrap{max-width:860px;}
.article h2{font-size:clamp(1.35rem,2.6vw,1.7rem);font-weight:800;margin:2.2em 0 .7em;}
.article h2:first-child{margin-top:0;}
.article h3{font-size:1.1rem;font-weight:700;margin:1.8em 0 .5em;}
.article ul,.article ol{padding-left:1.3em;margin:0 0 1.2em;}
.article li{margin-bottom:.55em;}
.article li::marker{color:var(--gold-dark);}
.steps{list-style:none;padding:0 !important;counter-reset:paso;}
.steps li{
  position:relative;padding:1em 1.2em 1em 3.6em;margin-bottom:.8em;
  background:var(--white);border:1px solid var(--line);border-radius:12px;
}
.steps li::before{
  counter-increment:paso;content:counter(paso,decimal-leading-zero);
  position:absolute;left:1.1em;top:1em;
  font-family:'Montserrat',sans-serif;font-weight:800;color:var(--gold-dark);
}
.note{
  background:var(--tint);border-left:3px solid var(--gold);
  padding:1em 1.2em;border-radius:0 10px 10px 0;margin:0 0 1.4em;font-size:.96rem;
}
.note p:last-child{margin-bottom:0;}
.disclaimer{font-size:.88rem;color:var(--muted);border-top:1px solid var(--line);padding-top:1.2em;margin-top:2.4em;}

/* Llamada a la acción */
.cta-box{
  margin:2.6em 0 0;padding:1.9em 2em;border-radius:var(--radius);
  background:var(--navy);color:rgba(255,255,255,.85);
  border-top:3px solid var(--gold);
}
.cta-box .cta-title{font-family:'Montserrat',sans-serif;font-weight:800;font-size:1.35rem;color:#fff;margin:0 0 .4em;line-height:1.3;}
.cta-box p{margin:0 0 1.2em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:.8em;}
@media (max-width:520px){.cta-box{padding:1.5em 1.3em;}.cta-actions .btn{width:100%;justify-content:center;}}

/* Enlaces relacionados */
.related{margin-top:2.6em;}
.related-title{font-family:'Montserrat',sans-serif;font-weight:700;font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:var(--navy);margin:0 0 .8em;}
.related-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.8em;list-style:none;padding:0 !important;margin:0;}
.related-links li{margin:0;}
.related-links a{
  display:block;height:100%;padding:1em 1.2em;border:1px solid var(--line);border-radius:12px;
  text-decoration:none;color:var(--navy);font-weight:600;transition:border-color .2s ease;
}
.related-links a:hover{border-color:var(--gold);}
.related-links span{display:block;font-weight:400;font-size:.88rem;color:var(--muted);margin-top:.2em;}

/* Preguntas frecuentes */
.faq-group{margin-bottom:2.4em;}
.faq-item{border-bottom:1px solid var(--line);padding:.2em 0 .9em;}
.faq-item h3{margin-top:1.2em;}
.faq-item p:last-child{margin-bottom:.2em;}

/* Página 404 */
.notfound{padding:5em 0 6em;text-align:center;}
.notfound .code{font-family:'Montserrat',sans-serif;font-weight:800;font-size:clamp(4rem,12vw,7rem);line-height:1;color:var(--gold);margin:0 auto .15em;}
.notfound p{color:var(--muted);max-width:520px;margin:0 auto 1.6em;}
.notfound .cta-actions{justify-content:center;}

/* Pie */
.site-footer{background:var(--navy);color:rgba(255,255,255,.7);padding:3em 0 2em;font-size:.9rem;}
.footer-top{display:flex;justify-content:space-between;gap:2.5em;flex-wrap:wrap;padding-bottom:2em;margin-bottom:1.8em;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{max-width:380px;}
.footer-logo{display:inline-flex;align-items:center;background:var(--white);padding:16px 13px;border-radius:12px;}
.footer-logo .logo-img{width:133px;}
.footer-brand p{margin:.5em 0 0;font-size:.85rem;color:rgba(255,255,255,.62);line-height:1.6;}
.footer-brand p:first-of-type{margin-top:1.1em;}
.site-footer .footer-brand a{color:rgba(255,255,255,.85);text-decoration:underline;text-decoration-color:rgba(213,164,74,.6);text-underline-offset:3px;}
.footer-navs{display:flex;gap:3em;flex-wrap:wrap;}
.footer-nav{display:flex;flex-direction:column;gap:.6em;}
.footer-title{color:#fff;font-family:'Montserrat',sans-serif;font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 .3em;}
.site-footer a{color:rgba(255,255,255,.75);text-decoration:none;}
.site-footer a:hover{color:var(--gold);}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.8em 1.4em;font-size:.85rem;}
.legal-links{display:flex;flex-wrap:wrap;gap:.4em 1.4em;}

/* Botón flotante de WhatsApp (#25D366) */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:60;
  width:60px;height:60px;border-radius:50%;
  background:#25D366;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(0,0,0,.25);text-decoration:none;
}
.wa-float svg{width:30px;height:30px;fill:#fff;}
.wa-float:hover{filter:brightness(1.05);}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .btn,.related-links a{transition:none;}
}
@media print{
  .site-header .header-actions,.site-nav,.wa-float,.cta-box,.related{display:none;}
  .site-header{position:static;}
}