:root{
  /* Brand colors */
  --blue-500:#2563eb;
  --blue-700:#1e40af;
  --orange-500:#f97316;
  --orange-600:#ea580c;
  --bg:#f8fafc;
  --bg-dark:#0f172a;
  --text:#0f172a;
  --muted:#475569;

  /* Gradients */
  --grad-primary: linear-gradient(135deg,var(--blue-500) 0%,var(--blue-700) 100%);
  --grad-accent: linear-gradient(135deg,var(--orange-500) 0%,var(--orange-600) 100%);
  --grad-hero: linear-gradient(135deg,var(--blue-700) 0%, var(--blue-500) 50%, #3b82f6 100%);

  /* Spacing */
  --space-xs:0.5rem; /*8px*/
  --space-sm:1rem;   /*16px*/
  --space-md:1.5rem; /*24px*/
  --space-lg:3rem;   /*48px*/
  --space-xl:5rem;   /*80px*/

  /* Radii */
  --radius-sm:8px; --radius-md:12px; --radius-lg:16px; --radius-xl:24px; --radius-full:9999px;

  /* Shadows */
  --shadow-md:0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1);
  --shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1);
  --shadow-2xl:0 25px 50px -12px rgba(0,0,0,0.25);
}
*{box-sizing:border-box}
body{font-family:Inter, system-ui, -apple-system, 'Segoe UI', sans-serif; margin:0; color:var(--text); background:var(--bg); -webkit-font-smoothing:antialiased}
.container{max-width:1100px;margin:0 auto;padding:1rem}
.site-header{position:sticky;top:0;background:rgba(255,255,255,0.8);backdrop-filter:blur(6px);border-bottom:1px solid rgba(15,23,42,0.04);z-index:40}
.header-inner{display:flex;align-items:center;gap:1rem;padding:0.6rem 1rem}
.logo{display:flex;align-items:center}
.logo img{max-width:120px;height:auto}
.logo-text{font-weight:800;color:var(--blue-700);font-size:1.1rem}
.nav ul{display:flex;gap:1rem;list-style:none;margin:0;padding:0}
.nav a{color:var(--text);text-decoration:none;font-weight:600;position:relative}
.nav a::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--orange-500);transition:width 0.3s}
.nav a:hover::after{width:100%}
.nav.open{display:flex;flex-direction:column;position:absolute;top:60px;left:0;right:0;background:#fff;padding:1rem;box-shadow:var(--shadow-lg)}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:.5rem}
.phone{color:var(--text);text-decoration:none;font-weight:700}
.btn{display:inline-block;padding:.6rem 1rem;border-radius:9999px;text-decoration:none;cursor:pointer;border:none;transition:all 0.2s}
.btn-primary{background:linear-gradient(135deg,var(--blue-500),var(--blue-700));color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-accent{background:linear-gradient(135deg,var(--orange-500),var(--orange-600));color:#fff}
.btn-accent:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn.whatsapp{background:linear-gradient(90deg,#25D366,#20BA5A);color:#fff}
.btn.whatsapp:hover{transform:scale(1.05)}
.btn-outline{background:transparent;border:2px solid var(--blue-500);color:var(--blue-700);transition:all 0.2s}
.btn-outline:hover{background:var(--blue-500);color:#fff}
.menu-toggle{display:none;background:transparent;border:0;font-size:1.4rem}

.hero{padding:4rem 0;background:linear-gradient(135deg,var(--blue-700) 0%, var(--blue-500) 60%, #3b82f6 100%);color:#fff}
.hero-inner{max-width:900px}
.hero h1{font-size:clamp(1.6rem,3vw,2.6rem);margin:0 0 .6rem}
.lead{opacity:.95}
.hero-ctas{margin-top:1rem;display:flex;gap:.7rem;flex-wrap:wrap}

.section{padding:3rem 0}
.section h2{font-size:clamp(1.4rem,2vw,1.8rem);margin:1.5rem 0 1rem;color:var(--blue-700)}
.section p{line-height:1.7;color:var(--text);margin:0 0 1rem}
.section ul{line-height:1.8;margin:1rem 0;padding-left:1.5rem}
.section ul li{margin-bottom:0.5rem;color:var(--text)}
.section a{color:var(--blue-500);text-decoration:none;font-weight:600}
.section a:hover{text-decoration:underline}

.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.card{background:#fff;border-radius:var(--radius-md);padding:1.2rem;box-shadow:var(--shadow-md);border:1px solid rgba(15,23,42,0.04);transition:all 0.3s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--blue-500)}
.card .icon{font-size:1.6rem;transition:transform 0.3s}
.card:hover .icon{transform:scale(1.1)}

.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem}
.feature{background:linear-gradient(135deg,var(--orange-500),var(--orange-600));color:#fff;padding:1rem;border-radius:12px;text-align:center;font-weight:700}

.contact-section form{background:#fff;padding:1rem;border-radius:12px;box-shadow:var(--shadow-md)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}
.form-grid input,.form-grid textarea{width:100%;padding:.7rem;border-radius:8px;border:1px solid rgba(15,23,42,.08)}
.form-grid textarea{grid-column:1/3}
.form-actions{margin-top:.6rem;display:flex;gap:.6rem}
.form-msg{margin-top:.6rem;color:var(--muted)}

.site-footer{background:#fff;border-top:1px solid rgba(15,23,42,.04);padding:2rem 1.75rem;margin-top:2rem}
.footer-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}
.footer-inner .col{padding:0}
.footer-inner .col strong{display:block;color:var(--blue-700);font-size:0.95rem;margin-bottom:0.7rem}
.footer-inner .col p,.footer-inner .col ul{margin:0;padding:0;font-size:0.9rem;line-height:1.6;color:var(--muted)}
.footer-inner .col ul li{list-style:none;margin:0.4rem 0}
.footer-inner .col ul li a{color:var(--blue-500);text-decoration:none;transition:color 0.2s}
.footer-inner .col ul li a:hover{color:var(--blue-700);text-decoration:underline}
.footer-bottom{text-align:center;color:var(--muted);padding:1.5rem 0;font-size:0.85rem}

@media (max-width:800px){
  .container{padding:1rem 1.75rem}
  .nav{display:none}
  .nav.open{display:flex}
  .menu-toggle{display:block}
  
  .hero{padding:3rem 1.75rem}
  .hero h1{font-size:1.4rem}
  .lead{font-size:0.95rem}
  
  .section{padding:2rem 1.75rem}
  .section h2{font-size:1.2rem;margin:1.2rem 0 0.8rem}
  .section p{font-size:0.95rem;line-height:1.6}
  .section ul{padding-left:1.25rem;font-size:0.95rem}
  
  .form-grid{grid-template-columns:1fr}
  .form-grid textarea{grid-column:1}
  .form-grid input{font-size:16px}
  
  .header-cta{gap:.4rem;flex-wrap:wrap}
  .header-cta select{display:none}
  
  .hero-ctas{flex-direction:column}
  .hero-ctas .btn{width:100%;font-size:0.95rem;padding:0.7rem 1rem}
  
  .services-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  
  .footer-inner{grid-template-columns:1fr;gap:1.5rem}
  .footer-inner .col{border-bottom:1px solid rgba(15,23,42,0.08);padding-bottom:1rem}
  .footer-inner .col:last-child{border-bottom:none}
  .footer-inner .col strong{font-size:0.9rem}
  .footer-inner .col p,.footer-inner .col ul{font-size:0.85rem}
}