/* Base: paleta azul/gris, tipografía sistema */
:root{
  --primary:#0a2540;
  --secondary:#1f2937;
  --accent:#3b82f6;
  --muted:#6b7280;
  --bg:#0b1220;
  --panel:#0f172a;
  --white:#ffffff;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji;
  color: var(--white);
  background: linear-gradient(180deg, var(--bg), #0b1220 40%, #0a0f1c);
  line-height:1.6;
}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
h1,h2,h3{line-height:1.2;margin:0 0 16px}
p{color:#e5e7eb;margin:0 0 12px}

/* Header */
header.site-header{
  position:sticky;top:0;z-index:50;
  background: rgba(11,18,32,.7);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--white)}
.brand img{height:28px}
.brand .title{font-weight:700;font-size:18px}
#navMenu{display:flex;gap:18px;align-items:center}
#navMenu a{color:#e5e7eb;text-decoration:none;padding:8px 10px;border-radius:8px}
#navMenu a:hover{background:rgba(255,255,255,.06)}
#navToggle{display:none;border:1px solid rgba(255,255,255,.2);padding:8px 12px;border-radius:10px;background:transparent;color:#fff}

/* Hero */
.hero{
  position:relative;
  background: radial-gradient(80% 100% at 70% 0, rgba(59,130,246,.25), transparent 60%), url('../img/hero-bg.svg') center/cover no-repeat;
  padding:100px 0 80px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.hero .wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.badge{display:inline-block;background:rgba(59,130,246,.15);color:#cfe0ff;padding:6px 10px;border:1px solid rgba(59,130,246,.3);border-radius:999px;font-size:12px;margin-bottom:12px}
.big-title{font-size:44px;margin-bottom:10px}
.sub{font-size:18px;color:#cbd5e1;margin-bottom:24px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{padding:12px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.12);text-decoration:none;color:var(--white);display:inline-flex;align-items:center;gap:8px}
.btn.primary{background:var(--accent);border-color:transparent;color:#fff;font-weight:600}
.btn.ghost{background:transparent}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.kpis .card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px;text-align:center}

/* Services grid + accordion */
.services .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:18px}
.accordion .item{border:1px solid rgba(255,255,255,.08);border-radius:12px;margin-bottom:10px;overflow:hidden}
.accordion .head{cursor:pointer;padding:14px 16px;background:rgba(255,255,255,.04);display:flex;justify-content:space-between;align-items:center}
.accordion .body{display:none;padding:16px;background:rgba(255,255,255,.02)}
.accordion .item.open .body{display:block}

/* About */
.about .team{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:14px}
.person{display:grid;grid-template-columns:140px 1fr;gap:14px;align-items:center}
.person img{width:100%;height:auto;border-radius:14px;border:1px solid rgba(255,255,255,.1)}

/* Cases */
.cases .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.case img{width:100%;height:auto;border-radius:12px;border:1px solid rgba(255,255,255,.08)}
.case h3{margin-top:10px}

/* Testimonials */
.testimonials .item{padding:16px;border-left:3px solid var(--accent);background:rgba(255,255,255,.03);border-radius:12px}

/* FAQ */
.faq .accordion .head{font-weight:600}

/* Contact form */
form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
form input, form textarea{
  width:100%; padding:12px 12px; border-radius:12px;
  border:1px solid rgba(255,255,255,.15); background:rgba(255,255,255,.03);
  color:#fff; outline:none;
}
form textarea{min-height:140px;resize:vertical}
form button{margin-top:8px}

/* Footer */
footer{padding:28px 0;border-top:1px solid rgba(255,255,255,.06);color:#aeb4c0}

/* Responsive */
@media (max-width: 980px){
  .hero .wrap{grid-template-columns:1fr}
  .services .grid, .cases .grid{grid-template-columns:1fr 1fr}
  form .row{grid-template-columns:1fr}
}
@media (max-width: 720px){
  #navToggle{display:block}
  #navMenu{display:none;flex-direction:column;align-items:flex-start;padding:12px;background:rgba(15,23,42,.95);position:absolute;top:56px;right:20px;border-radius:12px;border:1px solid rgba(255,255,255,.1)}
  #navMenu.open{display:flex}
  .about .team{grid-template-columns:1fr}
  .services .grid, .cases .grid{grid-template-columns:1fr}
  .big-title{font-size:34px}
}