:root{
  --blue:#1F4ED8;
  --black:#000000;
  --gray:#E6E6E6;
  --red:#C62828;
  --text:#0f172a;
  --muted:#475569;
  --bg:#ffffff;
  --card:#f8fafc;
  --max:1120px;
  --radius:16px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}

.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.topbar{
  border-bottom:1px solid var(--gray);
  position:sticky;top:0;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px); z-index:50;
}
..header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 0;
  gap:20px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand img{
  height:46px;
  max-width:220px;
  object-fit:contain;
}
.nav{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.nav a{
  font-weight:600;
  color:var(--muted);
  padding:6px 8px;
}

.nav a:hover{
  color:var(--blue);
}

.nav .btn{
  margin-left:10px;
}
.nav a.active{color:var(--black)}
.lang{display:flex;gap:10px;align-items:center}
.lang a{font-weight:700;color:var(--muted)}
.lang a.active{color:var(--blue)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 16px;border-radius:999px;font-weight:800;
  border:1px solid transparent;cursor:pointer;transition:.15s ease;
  line-height:1;
}
.btn-primary{background:var(--blue);color:white}
.btn-primary:hover{filter:brightness(.92)}
.btn-secondary{background:white;border-color:var(--blue);color:var(--blue)}
.btn-secondary:hover{background:#eef2ff}
.btn-accent{background:var(--red);color:white}
.btn-accent:hover{filter:brightness(.92)}

.hero{
  padding:72px 0 36px;
}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:start}
.badge{display:inline-flex;gap:10px;align-items:center;padding:8px 12px;border-radius:999px;background:var(--card);border:1px solid var(--gray);color:var(--muted);font-weight:700}
.h1{
  font-size:40px;
  letter-spacing:-0.5px;
}
.lead{font-size:18px;line-height:1.55;color:var(--muted);margin:0 0 18px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}

.card{
  background:var(--card);border:1px solid var(--gray);border-radius:var(--radius);
  padding:18px;
}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.kpi{padding:14px;border-radius:14px;background:white;border:1px solid var(--gray)}
.kpi b{display:block;font-size:18px}
.kpi span{color:var(--muted);font-weight:600;font-size:13px}

.section{padding:30px 0}
.section h2{font-size:26px;margin:0 0 12px}
.section p{color:var(--muted);margin:0 0 12px;line-height:1.6}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}

.feature h3{margin:0 0 8px;font-size:18px}
.feature p{margin:0;color:var(--muted)}
.list{margin:10px 0 0;padding:0 0 0 18px;color:var(--muted);line-height:1.7}
.pill{display:inline-flex;padding:6px 10px;border:1px solid var(--gray);border-radius:999px;background:white;color:var(--muted);font-weight:700;font-size:12px}

.footer{
  margin-top:30px;border-top:1px solid var(--gray);padding:20px 0 28px;color:var(--muted);font-size:13px;
}
.footer a{color:var(--muted);text-decoration:underline}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.small{font-size:12px;line-height:1.55}
.notice{padding:12px 14px;border-radius:14px;background:white;border:1px dashed #cbd5e1;color:var(--muted)}
hr.sep{border:none;border-top:1px solid var(--gray);margin:14px 0}

@media (max-width: 920px){
  .hero-grid{grid-template-columns:1fr}
  .h1{font-size:36px}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .kpis{grid-template-columns:1fr}
  .brand img{height:48px}
}
section + section{
  margin-top:24px;
}
.card{
  box-shadow:0 6px 20px rgba(0,0,0,.04);
}

.badge{
  margin-bottom:12px;
}
/* ====== HEADER UPGRADE (logo + nav ordenado) ====== */
.header{
  padding:18px 0 !important;
  gap:18px !important;
}

.brand img{
  height:44px !important;
  max-width:240px !important;
  object-fit:contain !important;
}

.nav{
  gap:10px !important;
}

.nav a{
  font-weight:700 !important;
  color:var(--muted) !important;
  padding:8px 10px !important;
  border-radius:12px !important;
}

.nav a:hover{
  color:var(--blue) !important;
  background:#f1f5ff !important;
}

.nav .btn{
  padding:12px 14px !important;
  margin-left:6px !important;
}

.lang a{
  padding:8px 10px;
  border-radius:12px;
  background:#f8fafc;
  border:1px solid var(--gray);
}

/* ====== MOBILE MENU (sin librerías) ====== */
.mobile-toggle{
  display:none;
}

.mobile-button{
  display:none;
  border:1px solid var(--gray);
  background:white;
  padding:10px 12px;
  border-radius:12px;
  font-weight:800;
  color:var(--black);
}

@media (max-width: 920px){
  .mobile-button{ display:inline-flex; align-items:center; gap:8px; }
  .nav{ display:none !important; width:100%; }
  .lang{ display:none; }

  /* cuando el checkbox está activo, se muestra el menú */
  .mobile-toggle:checked ~ nav.nav{
    display:flex !important;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:10px 0 0;
  }

  .mobile-toggle:checked ~ .lang{
    display:flex;
    gap:8px;
    padding-top:8px;
  }

  .nav a{ width:100%; }
  .nav .btn{ width:100%; justify-content:center; margin-left:0 !important; }
}
/* ====== HOME HERO UPGRADE ====== */
.hero{ padding:74px 0 38px !important; }

.h1{
  font-size:40px !important;
  letter-spacing:-0.6px;
  margin:16px 0 12px !important;
}

.lead{ max-width:62ch; }

.hero-grid{
  gap:22px !important;
  align-items:stretch !important;
}

.card{
  box-shadow:0 10px 28px rgba(0,0,0,.05);
}

.kpis .kpi b{
  font-size:16px;
}
/* Oculta el checkbox del menú móvil (evita que se vea el cuadrito) */
input.mobile-toggle{
  position:absolute !important;
  opacity:0 !important;
  pointer-events:none !important;
  width:1px !important;
  height:1px !important;
}

/* Por defecto (desktop): no mostrar botón */
.mobile-button{ display:none !important; }

/* Solo en móvil mostrarlo */
@media (max-width: 920px){
  .mobile-button{ display:inline-flex !important; }
}
/* Header estable: logo izquierda, nav centrado, idioma derecha */
.header{ justify-content:flex-start !important; }
.brand{ flex:0 0 auto; }
.nav{
  flex:1 1 auto !important;
  justify-content:center !important;
}
.lang{ flex:0 0 auto; margin-left:auto !important; }