:root{
  --bg:#F8F5F1;
  --text:#1F2937;
  --primary:#B87333; /* cobre */
  --accent:#C29B7A;  /* madera cálida */
  --white:#FFFFFF;
  --muted:#6B7280;
  --shadow:0 10px 30px rgba(0,0,0,.08);
  --radius:16px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
}

img{max-width:100%; height:auto; display:block}
a{color:var(--text); text-decoration:none}
a:focus{outline:2px solid var(--primary); outline-offset:2px}
.sr-only{position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0}
.skip-link{position:absolute; left:-9999px; top:auto}
.skip-link:focus{left:1rem; top:1rem; background:var(--white); padding:.5rem 1rem; border-radius:8px; box-shadow:var(--shadow)}

.container{max-width:1120px; margin:0 auto; padding:0 1.2rem}
.section{padding:72px 0}
.section.alt{background:#fff}
.section-title{
  font-family:"Playfair Display", serif;
  font-weight:600;
  font-size:2rem;
  margin:0 0 1rem 0;
}

.site-header{
  position:sticky; top:0; z-index:40; background:rgba(248,245,241,.9); backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(0,0,0,.05)
}
.navbar{display:flex; align-items:center; justify-content:space-between; padding:.8rem 1.2rem}
.brand{display:flex; align-items:center; gap:.6rem; font-weight:600}
.nav-links{display:flex; gap:1rem; align-items:center; list-style:none; margin:0; padding:0}
.nav-links a{padding:.5rem .75rem; border-radius:10px}
.nav-links .btn{color:#fff}
.nav-toggle{display:none; background:none; border:0; font-size:1.4rem}

.btn{display:inline-block; padding:.75rem 1rem; border-radius:12px; box-shadow:var(--shadow); font-weight:600}
.btn-primary{background:var(--primary); color:#fff}
.btn-primary:hover{opacity:.92}
.btn-secondary{background:var(--accent); color:#fff}
.btn-secondary:hover{opacity:.92}

.hero{display:grid; grid-template-columns:1.1fr .9fr; gap:2rem; align-items:center; padding:40px 1.2rem 0}
.hero-inner{padding-left:calc(50vw - 560px)}
.hero h1{
  font-family:"Playfair Display", serif;
  font-size:clamp(2rem, 4vw, 3rem);
  margin:.25rem 0 .5rem 0;
}
.lead{font-size:1.125rem; color:var(--muted)}
.hero-bullets{margin:1rem 0; padding-left:1.2rem}
.hero-ctas{display:flex; gap:1rem; margin-top:1rem}
.hero-media img{border-radius:var(--radius); box-shadow:var(--shadow)}

.cards{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1rem;
}
.card{
  background:var(--white); padding:1rem; border-radius:var(--radius); box-shadow:var(--shadow);
}
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:1rem}
.service{background:#fff; padding:1rem; border-radius:var(--radius); box-shadow:var(--shadow)}

.center{text-align:center; margin-top:1rem}

.portfolio-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1rem;
}
.portfolio-card{background:#fff; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow)}
.portfolio-card figcaption{padding:.75rem 1rem; font-weight:500}

.steps{display:grid; grid-template-columns:repeat(5,1fr); gap:1rem; counter-reset:step}
.steps li{background:#fff; padding:1rem; border-radius:var(--radius); box-shadow:var(--shadow)}

.price-card{background:#fff; padding:1rem; border-radius:var(--radius); box-shadow:var(--shadow)}
.price{font-size:1.25rem; font-weight:700}
.muted{color:var(--muted); font-size:.95rem}

.testimonials{display:grid; grid-template-columns:repeat(3,1fr); gap:1rem}
blockquote{background:#fff; padding:1rem; border-left:4px solid var(--accent); border-radius:12px; box-shadow:var(--shadow); margin:0}

.contact-form{background:#fff; padding:1rem; border-radius:var(--radius); box-shadow:var(--shadow)}
.form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:1rem}
.form-grid .full{grid-column:1/-1}
.form-actions{display:flex; gap:1rem; align-items:center; margin-top:.5rem}
.consent{display:flex; align-items:center; gap:.5rem}

.site-footer{padding:2rem 1.2rem; background:#fff; border-top:1px solid rgba(0,0,0,.05)}
.footer-grid{display:grid; grid-template-columns:1fr 1fr 1fr; gap:1rem; align-items:start}
.footer-links{list-style:none; padding:0; margin:0; display:grid; gap:.5rem}

.whatsapp-fab{
  position:fixed; right:16px; bottom:16px; width:56px; height:56px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; background:#25D366; color:#fff;
  box-shadow:var(--shadow); font-size:24px
}
.whatsapp-fab:hover{opacity:.9}

/* Responsive */
@media (max-width: 992px){
  .hero{grid-template-columns:1fr; padding:0 1.2rem}
  .hero-inner{padding-left:0}
  .cards{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .portfolio-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .testimonials{grid-template-columns:1fr 1fr}
}
@media (max-width: 640px){
  .nav-toggle{display:block}
  .nav-links{display:none; position:absolute; top:64px; right:12px; background:#fff; padding:1rem; border-radius:12px; box-shadow:var(--shadow); flex-direction:column; width:min(80vw, 320px)}
  .nav-links.open{display:flex}
  .cards{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .portfolio-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .testimonials{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}