:root{
  --bg:#000000;
  --silver:#c0c0c0;
  --card:#111111;
  --accent:#bfbfbf;
  --muted:#888;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Arial, Helvetica, sans-serif;background:var(--bg);color:var(--silver);}

.site-header{padding:24px 16px;text-align:center;border-bottom:1px solid rgba(192,192,192,0.06)}
.site-header h1{margin:0;font-size:1.8rem;color:var(--silver)}
.site-header .subtitle{margin:6px 0 0;color:var(--muted);font-size:0.95rem}

.container{max-width:900px;margin:28px auto;padding:0 16px}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border:1px solid rgba(192,192,192,0.06);padding:18px;border-radius:8px;margin-bottom:16px}
.card h2{margin-top:0;color:var(--accent)}
.price-list{list-style:none;padding:0;margin:8px 0 0}
.price-list li{padding:6px 0;border-bottom:1px dashed rgba(192,192,192,0.03);color:var(--silver)}

.contact-card label{display:block;font-size:0.85rem;margin-top:10px;color:var(--muted)}
input[type="text"], textarea{width:100%;padding:10px;margin-top:6px;background:#0b0b0b;border:1px solid rgba(192,192,192,0.08);color:var(--silver);border-radius:6px}
.btn{margin-top:12px;padding:10px 14px;background:transparent;border:1px solid var(--silver);color:var(--silver);border-radius:6px;cursor:pointer}
.btn:hover{background:rgba(192,192,192,0.06)}

.site-footer{text-align:center;padding:12px 16px;border-top:1px solid rgba(192,192,192,0.04);color:var(--muted);font-size:0.9rem}
.status{margin-top:10px;font-size:0.95rem;color:var(--muted)}
@media (max-width:520px){.site-header h1{font-size:1.3rem}}

.whatsapp-floating{
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 20px;
  background: linear-gradient(90deg, #25D366, #128C7E);
  color: #fff;
  padding: 12px 18px;
  border-radius: 28px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.35);
  text-decoration: none;
  font-weight: 600;
  z-index: 9999;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
}

/* Ajustes responsivos para no tapar contenido importante en móviles */
@media (max-width:420px){
  .whatsapp-floating{bottom:14px;padding:10px 14px;font-size:0.95rem}
}