:root{
  --ink:#2e2a24;         /* café oscuro casi negro */
  --brown:#7a5c3a;       /* café tierra */
  --tan:#a9743f;         /* cobre/terracota acento */
  --sand:#e7ded0;        /* arena */
  --cream:#f7f3ed;       /* crema fondo */
  --line:#e2d9c9;
  --muted:#6f6656;
  --white:#fff;
  --maxw:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",system-ui,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--tan);text-decoration:none}
h1,h2,h3,h4{font-family:Georgia,"Times New Roman",serif;color:var(--ink);line-height:1.2;margin:0 0 .5em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
.center{text-align:center}

/* Header */
.site-head{position:sticky;top:0;z-index:40;background:rgba(247,243,237,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 22px}
.brand img{height:46px;width:auto}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--ink);font-weight:600;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
.nav a:hover{color:var(--tan)}
.nav a.active{color:var(--tan);border-bottom-color:var(--tan)}
.btn-nav{background:var(--ink);color:#fff !important;padding:9px 16px !important;border-radius:6px;border:0 !important}
.btn-nav:hover{background:var(--brown)}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--ink)}

/* Botones */
.btn{display:inline-block;background:var(--tan);color:#fff;font-weight:700;padding:13px 26px;border-radius:6px;border:0;cursor:pointer;font-size:1rem;transition:.15s}
.btn:hover{background:var(--brown)}
.btn.ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.8)}
.btn.ghost:hover{background:rgba(255,255,255,.15)}
.btn.dark{background:var(--ink)}.btn.dark:hover{background:var(--brown)}
.btn-lg{padding:15px 34px;font-size:1.05rem}

/* Hero */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;color:#fff;
  background:linear-gradient(90deg,rgba(30,26,20,.82),rgba(30,26,20,.35)),url('/assets/img/hero.jpg') center/cover no-repeat}
.hero-in{max-width:640px;padding:60px 0}
.hero .eyebrow{color:var(--sand);letter-spacing:3px;text-transform:uppercase;font-size:.8rem;font-weight:700;margin-bottom:14px}
.hero h1{color:#fff;font-size:3rem;margin-bottom:.4em}
.hero p{font-size:1.2rem;color:#f0e9dd;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* Franja de datos */
.stats{background:var(--ink);color:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:34px 22px;text-align:center}
.stats .n{font-family:Georgia,serif;font-size:2rem;color:var(--sand);font-weight:700}
.stats .l{font-size:.9rem;color:#cdbfa8}

/* Secciones */
.section{padding:72px 0}
.section.alt{background:var(--white)}
.sec-head{max-width:720px;margin:0 auto 44px;text-align:center}
.sec-head .eyebrow{color:var(--tan);letter-spacing:2px;text-transform:uppercase;font-size:.78rem;font-weight:800;margin-bottom:10px}
.sec-head h2{font-size:2.2rem}
.lead{font-size:1.15rem;color:var(--muted)}

/* Servicios */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:28px;transition:.18s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(46,42,36,.12)}
.card .num{font-family:Georgia,serif;font-size:1.5rem;color:var(--tan);font-weight:700}
.card h3{font-size:1.2rem;margin:8px 0 10px}
.card p{color:var(--muted);font-size:.95rem;margin:0}
.section.alt .card{background:var(--cream)}

/* Bloque imagen + texto */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{border-radius:12px;box-shadow:0 16px 40px rgba(46,42,36,.15)}
.split h2{font-size:2rem}

/* Galería proyectos */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery a{border-radius:10px;overflow:hidden;background:#000}
.gallery img{width:100%;height:260px;object-fit:cover;transition:.4s}
.gallery a:hover img{transform:scale(1.06);opacity:.92}

/* Testimonio */
.quote{background:var(--sand);border-left:5px solid var(--tan);padding:34px 40px;border-radius:10px;max-width:820px;margin:0 auto;font-size:1.1rem;font-style:italic;color:#4a4335}
.quote cite{display:block;margin-top:16px;font-style:normal;font-weight:700;color:var(--ink)}

/* CTA band */
.cta-band{background:linear-gradient(90deg,rgba(30,26,20,.9),rgba(122,92,58,.85)),url('/assets/img/hero.jpg') center/cover;color:#fff;text-align:center;padding:64px 22px}
.cta-band h2{color:#fff;font-size:2rem}
.cta-band p{color:#efe6d8;font-size:1.1rem;margin-bottom:24px}

/* Pagehead */
.pagehead{background:var(--ink);color:#fff;padding:56px 0}
.pagehead h1{color:#fff;font-size:2.4rem;margin-bottom:6px}
.pagehead p{color:#cdbfa8;max-width:60ch}

/* Formulario contacto */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:block;font-weight:600;font-size:.9rem;margin:0 0 6px}
input,textarea,select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
input:focus,textarea:focus{outline:2px solid var(--tan);border-color:var(--tan)}
.field{margin-bottom:16px}
.hp{position:absolute;left:-9999px}
.captcha{background:var(--cream);border:1px solid var(--line);border-radius:10px;padding:16px}
.cap-opts{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.cap-opt{cursor:pointer;border:2px solid var(--line);border-radius:10px;padding:12px 16px;font-size:1.8rem;background:#fff;transition:.15s;line-height:1}
.cap-opt input{position:absolute;opacity:0}
.cap-opt:hover{border-color:var(--tan)}
.cap-opt.sel{border-color:var(--tan);background:#faf3ea;box-shadow:0 0 0 3px rgba(169,116,63,.2)}
.alert{padding:13px 16px;border-radius:8px;margin-bottom:18px;font-weight:600}
.alert.ok{background:#e4f3e4;color:#1f5b2a;border:1px solid #b9dcb9}
.alert.no{background:#fbe6e3;color:#8a2b20;border:1px solid #f0b8b0}
.contact-info{display:flex;flex-direction:column;gap:14px}
.ci{display:flex;gap:12px;align-items:flex-start}
.ci .ic{font-size:1.3rem}

/* Footer */
.site-foot{background:var(--ink);color:#cdbfa8;padding:52px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:34px}
.foot-word{font-family:Georgia,serif;font-size:1.7rem;font-weight:700;color:#fff;letter-spacing:2px}
.foot-word span{color:var(--tan)}
.foot-legal{font-size:.86rem;margin:12px 0 14px;color:#b3a68f}
.site-foot h4{color:#fff;font-size:.95rem;margin-bottom:12px}
.site-foot a{display:block;color:#cdbfa8;padding:4px 0;font-size:.92rem}
.site-foot a:hover{color:var(--sand)}
.foot-social{display:flex;gap:12px;margin-top:6px}
.foot-social a{display:inline-flex;width:38px;height:38px;align-items:center;justify-content:center;border:1px solid #4a4438;border-radius:9px;color:#cdbfa8}
.foot-social a:hover{background:var(--tan);border-color:var(--tan);color:#fff}
.foot-bottom{border-top:1px solid #433c30;padding:18px 22px;font-size:.82rem;color:#9a8e78;text-align:center}

/* WhatsApp fab */
.fab-wa{position:fixed;right:18px;bottom:18px;width:56px;height:56px;background:#25d366;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.25);z-index:50}
.fab-wa:hover{transform:scale(1.06)}

@media(max-width:860px){
  .nav{position:fixed;inset:59px 0 auto 0;background:var(--cream);flex-direction:column;align-items:flex-start;gap:0;padding:10px 22px;border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .nav a{width:100%;padding:12px 0;border-bottom:1px solid var(--line)}
  .btn-nav{margin-top:8px}
  .nav-toggle{display:block}
  .hero h1{font-size:2.2rem}
  .stats .wrap{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:24px}
  .gallery{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:24px}
}
@media(max-width:520px){ .gallery{grid-template-columns:1fr} }