:root{
  --azul-oscuro:#0b3d5c;
  --azul:#0f6ea8;
  --azul-claro:#e8f3fa;
  --verde-cta:#1ba672;
  --verde-cta-hover:#158a5d;
  --texto:#1c2b33;
  --texto-suave:#4a5c66;
  --borde:#dbe6ec;
  --blanco:#ffffff;
  --radio:14px;
  --sombra:0 8px 24px rgba(11,61,92,.08);
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--texto);
  background:var(--blanco);
  line-height:1.6;
}
img{max-width:100%;display:block}
a{color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.25;color:var(--azul-oscuro);font-weight:700}
h1{font-size:2.4rem;margin:0 0 16px}
h2{font-size:1.9rem;margin:0 0 12px}
h3{font-size:1.25rem;margin:0 0 8px}
p{margin:0 0 16px;color:var(--texto-suave)}
.eyebrow{
  display:inline-block;text-transform:uppercase;letter-spacing:.08em;
  font-size:.75rem;font-weight:700;color:var(--azul);
  background:var(--azul-claro);padding:6px 14px;border-radius:20px;margin-bottom:14px;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:14px 26px;border-radius:50px;font-weight:700;text-decoration:none;
  font-size:1rem;cursor:pointer;border:2px solid transparent;transition:.15s ease;
}
.btn-primary{background:var(--verde-cta);color:#fff}
.btn-primary:hover{background:var(--verde-cta-hover)}
.btn-outline{background:transparent;border-color:var(--blanco);color:var(--blanco)}
.btn-outline:hover{background:rgba(255,255,255,.12)}
.btn-outline-azul{background:transparent;border-color:var(--azul);color:var(--azul)}
.btn-outline-azul:hover{background:var(--azul-claro)}

/* Barra de aviso superior */
.top-bar{
  background:var(--azul-oscuro);color:#cfe6f5;font-size:.85rem;text-align:center;
  padding:8px 12px;
}
.top-bar a{color:#fff;font-weight:700;text-decoration:underline}

/* Header */
header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);
  backdrop-filter:blur(6px);border-bottom:1px solid var(--borde);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;gap:20px}
.logo img{height:42px;width:auto}
nav.menu{display:flex;gap:28px;align-items:center}
nav.menu a{text-decoration:none;color:var(--texto);font-weight:600;font-size:.95rem}
nav.menu a:hover{color:var(--azul)}
.nav-cta{display:flex;align-items:center;gap:14px}
.tel-link{font-weight:700;color:var(--azul-oscuro);text-decoration:none;font-size:.95rem;white-space:nowrap}
.menu-toggle{display:none;background:none;border:none;font-size:1.6rem;cursor:pointer;color:var(--azul-oscuro)}

/* Hero */
.hero{
  background:linear-gradient(135deg,var(--azul-oscuro),var(--azul) 120%);
  color:#fff;padding:64px 0 70px;
}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{color:#fff}
.hero p.lead{color:#dfeefa;font-size:1.15rem}
.hero-cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;font-size:.85rem;color:#cfe6f5}
.hero-trust span{display:flex;align-items:center;gap:8px}
.hero-photo{
  border-radius:var(--radio);overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.35);
  border:4px solid rgba(255,255,255,.15);
}

/* Trust bar */
.trust-strip{background:var(--azul-claro);padding:22px 0}
.trust-strip .container{display:flex;flex-wrap:wrap;gap:28px;justify-content:center;align-items:center;text-align:center}
.trust-strip .item{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:130px}
.trust-strip .item strong{color:var(--azul-oscuro);font-size:.95rem}
.trust-strip .item span{font-size:.8rem;color:var(--texto-suave)}

/* Secciones generales */
section{padding:70px 0}
.section-head{max-width:680px;margin:0 auto 44px;text-align:center}
.section-head.left{margin:0 0 40px;text-align:left}

/* Qué es la vasectomía */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.intro-grid .stat-row{display:flex;gap:24px;margin-top:28px;flex-wrap:wrap}
.stat{background:var(--azul-claro);border-radius:var(--radio);padding:18px 22px;flex:1;min-width:150px}
.stat .num{font-size:1.7rem;font-weight:800;color:var(--azul-oscuro)}
.stat .label{font-size:.82rem;color:var(--texto-suave)}

/* Comparativa técnicas */
.tecnicas{background:#f7fafc}
.tec-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.tec-card{
  background:#fff;border:1px solid var(--borde);border-radius:var(--radio);
  padding:32px;box-shadow:var(--sombra);position:relative;
}
.tec-card.destacada{border:2px solid var(--verde-cta)}
.tec-card .badge{
  position:absolute;top:-14px;left:28px;background:var(--verde-cta);color:#fff;
  font-size:.72rem;font-weight:700;padding:5px 14px;border-radius:20px;text-transform:uppercase;letter-spacing:.05em;
}
.tec-card ul{margin:18px 0 0;padding-left:20px;color:var(--texto-suave)}
.tec-card li{margin-bottom:8px}

/* Sobre el doctor */
.doctor{background:var(--azul-oscuro);color:#fff}
.doctor .container{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:center}
.doctor h2{color:#fff}
.doctor p{color:#cfe6f5}
.doctor-photo{border-radius:var(--radio);overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.4)}
.cred-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px}
.cred-list li{display:flex;gap:12px;align-items:flex-start;color:#e5f1fa;font-size:.95rem}
.cred-list li:before{content:"✓";color:var(--verde-cta);font-weight:900;font-size:1.1rem}

/* Costo */
.costo{background:var(--azul-claro)}
.costo-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.precio-card{
  background:#fff;border-radius:var(--radio);padding:34px;box-shadow:var(--sombra);
  border:1px solid var(--borde);
}
.precio-card .monto{font-size:2.3rem;font-weight:800;color:var(--azul-oscuro)}
.precio-card .monto small{font-size:1rem;font-weight:600;color:var(--texto-suave)}
.precio-card ul{padding-left:20px;color:var(--texto-suave)}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--borde)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;padding:20px 4px;
  font-size:1.05rem;font-weight:700;color:var(--azul-oscuro);cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q .icon{flex-shrink:0;font-size:1.3rem;color:var(--azul);transition:transform .2s}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 4px 20px;margin:0;color:var(--texto-suave)}

/* CTA final */
.cta-final{
  background:linear-gradient(135deg,var(--verde-cta),#0e8a5c);
  color:#fff;text-align:center;
}
.cta-final h2{color:#fff}
.cta-final p{color:#e3fbf1}
.cta-final .hero-cta-row{justify-content:center}
.cta-final .btn-primary{background:#fff;color:var(--verde-cta-hover)}
.cta-final .btn-primary:hover{background:#eafff5}

/* Footer */
footer{background:#07293f;color:#a9c4d6;padding:50px 0 24px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;margin-bottom:34px}
footer h4{color:#fff;font-size:1rem;margin:0 0 14px}
footer a{color:#a9c4d6;text-decoration:none}
footer a:hover{color:#fff}
footer .logo-footer img{height:34px;margin-bottom:14px;filter:brightness(0) invert(1)}
footer ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-bottom{border-top:1px solid #12405e;padding-top:20px;text-align:center;font-size:.8rem;color:#7fa1b8}

/* WhatsApp flotante */
.whatsapp-float{
  position:fixed;bottom:22px;right:22px;background:#25D366;color:#fff;
  width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(0,0,0,.25);z-index:60;text-decoration:none;font-size:1.7rem;
}

/* Responsive */
@media (max-width:900px){
  .hero .container,.intro-grid,.tec-grid,.doctor .container,.costo-grid{grid-template-columns:1fr}
  .hero-photo{order:-1;max-width:420px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr}
  nav.menu{
    position:fixed;top:66px;left:0;right:0;background:#fff;flex-direction:column;
    padding:20px;gap:16px;border-bottom:1px solid var(--borde);display:none;
  }
  nav.menu.open{display:flex}
  .menu-toggle{display:block}
  .nav-cta .tel-link{display:none}
  h1{font-size:1.9rem}
  h2{font-size:1.5rem}
  section{padding:50px 0}
}