:root{--navy:#002659;--ink:#111;--yellow:#ffe600;--grey:#e5e5e5;--soft:#f4f6fa;--r:12px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font:16px/1.65 "Poppins",system-ui,sans-serif;color:var(--ink);background:#fff}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy)}
:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;color:var(--navy);margin:0 0 .6em}
h1{font-size:clamp(2rem,5vw,3.2rem)}
h2{font-size:clamp(1.6rem,3.5vw,2.3rem)}
h3{font-size:1.35rem}
.btn{display:inline-block;padding:.85em 1.6em;border-radius:999px;background:var(--yellow);color:var(--navy);font-weight:600;text-decoration:none;border:2px solid var(--yellow);cursor:pointer;font:inherit;font-weight:600}
.btn:hover{background:var(--navy);border-color:var(--navy);color:#fff}
.btn.alt{background:transparent;border-color:#fff;color:#fff}
.btn.alt:hover{background:#fff;color:var(--navy)}

/* Cabecera */
header{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid var(--grey)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:10px 20px;max-width:1140px;margin:0 auto}
.logo img{width:150px}
nav ul{display:flex;gap:24px;list-style:none;margin:0;padding:0}
nav a{text-decoration:none;font-weight:500;color:var(--ink)}
nav a:hover{color:var(--navy);text-decoration:underline}
.tel{font-weight:600;text-decoration:none}
.menu-toggle{display:none;background:none;border:0;font-size:1.8rem;color:var(--navy);cursor:pointer}

/* Portada */
.hero{background:linear-gradient(rgba(0,20,50,.62),rgba(0,20,50,.62)),url(Resources/images/132650822_m-2880w.jpg) center/cover;color:#fff;padding:110px 0}
.hero h1{color:#fff;max-width:16ch}
.hero p{max-width:52ch;font-size:1.1rem}
.hero .btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}

/* Secciones */
section{padding:80px 0}
.intro{background:var(--soft);text-align:center}
.intro p{max-width:70ch;margin:0 auto;font-weight:500}
.service{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:50px 0}
.service:nth-child(even) .txt{order:2}
.service img{border-radius:var(--r);width:100%;height:340px;object-fit:cover}
.cta{background:var(--navy);color:#fff;text-align:center}
.cta h2{color:#fff}

/* Formulario */
.contact-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:48px}
.info p{margin:.2em 0}
.info strong{display:block;color:var(--navy)}
form{display:grid;grid-template-columns:1fr 1fr;gap:16px;background:#fff;padding:28px;border-radius:var(--r);box-shadow:0 0 12px var(--grey)}
form .full{grid-column:1/-1}
label{display:block;font-size:.9rem;color:#4b4c53;margin-bottom:4px}
input[type=text],input[type=tel],input[type=email],select,textarea{width:100%;padding:11px;border:1px solid #e1e1e1;border-radius:6px;background:#fafafa;font:inherit}
textarea{min-height:130px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.9rem}
.check input{margin-top:5px}
fieldset{border:0;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px 20px}
legend{font-size:.9rem;color:#4b4c53;margin-bottom:4px;padding:0}
#form-msg{display:none;padding:12px;border-radius:6px;background:#e7f6ea}

/* Textos legales */
.legal{background:var(--soft)}
details{background:#fff;border-radius:var(--r);margin-bottom:12px;padding:0 20px}
summary{cursor:pointer;font-weight:600;color:var(--navy);padding:16px 0}
details p,details li{font-size:.95rem}

footer{background:#fff;border-top:2px solid var(--navy);padding:34px 0;text-align:center;font-size:.9rem}
footer img{margin:0 auto 18px}
.wa{position:fixed;right:18px;bottom:18px;width:56px;height:56px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 2px 10px rgba(0,0,0,.3);z-index:20}
.wa svg{width:30px;fill:#fff}

@media (max-width:820px){
  .menu-toggle{display:block}
  nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--grey);padding:10px 20px}
  nav.open{display:block}
  nav ul{flex-direction:column;gap:12px}
  .tel{display:none}
  .hero{padding:70px 0}
  .service,.contact-grid{grid-template-columns:1fr;gap:24px}
  .service:nth-child(even) .txt{order:0}
  .service img{height:240px}
  form{grid-template-columns:1fr}
  section{padding:56px 0}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}