/* FinancIA — hoja de estilos (tema corporativo oscuro/dorado) */
:root{
  --carbon:#161616; --carbon-2:#1F1F1F; --superficie:#242424; --superficie-2:#2C2C2C;
  --borde:#3A3A3A; --oro:#F2A81D; --oro-claro:#FFC845; --oro-osc:#C98A12;
  --texto:#ECECEC; --texto-tenue:#A6A6A6; --blanco:#FFFFFF;
  --radio:14px; --sombra:0 6px 24px rgba(0,0,0,.45);
  --verde:var(--oro); --verde-osc:var(--oro-claro); --verde-claro:var(--superficie-2);
  --dorado:var(--oro); --tinta:var(--texto); --gris:var(--texto-tenue); --fondo:var(--carbon);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;color:var(--texto);background:var(--carbon);line-height:1.6}
a{color:var(--oro-claro);text-decoration:none}
img{max-width:100%}
.contenedor{max-width:1100px;margin:0 auto;padding:0 20px}

nav{background:rgba(18,18,18,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--borde);position:sticky;top:0;z-index:50}
.nav-inner{max-width:1100px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.5rem;font-weight:800;color:var(--blanco);letter-spacing:.5px}
.logo img{height:40px;width:auto;display:block}
.logo .marca{font-weight:300}
.logo .marca b{font-weight:800;color:var(--oro)}
.nav-links{display:flex;gap:22px;flex-wrap:wrap;align-items:center}
.nav-links a{color:var(--texto);font-weight:500;font-size:.95rem}
.nav-links a:hover,.nav-links a.activo{color:var(--oro-claro)}
.nav-toggle{display:none;background:none;border:none;color:var(--oro);font-size:1.7rem;cursor:pointer;line-height:1}
.btn{display:inline-block;padding:12px 26px;border-radius:999px;font-weight:700;border:none;cursor:pointer;font-size:1rem;transition:transform .15s, box-shadow .15s, background .15s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--sombra)}
.btn-primario{background:var(--oro);color:#1a1a1a}
.btn-primario:hover{background:var(--oro-claro)}
.btn-secundario{background:transparent;color:var(--oro-claro);border:1.5px solid var(--oro)}
.btn-secundario:hover{background:rgba(242,168,29,.12)}
.btn-dorado{background:var(--oro);color:#1a1a1a}
.btn-peq{padding:8px 18px;font-size:.9rem}

.heroe{background:radial-gradient(circle at 50% 0%,#262015 0%,#161616 60%);color:#fff;padding:84px 20px 70px;text-align:center;border-bottom:1px solid var(--borde)}
.heroe .logo-grande{height:120px;margin-bottom:22px}
.heroe h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.15;margin-bottom:18px;color:var(--blanco)}
.heroe h1 b{color:var(--oro)}
.heroe p.sub{font-size:1.2rem;color:var(--texto-tenue);max-width:720px;margin:0 auto 32px}
.heroe .acciones{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.credencial{margin-top:28px;font-size:.95rem;color:var(--texto-tenue)}

section{padding:64px 0}
section.alterna{background:var(--carbon-2)}
.titulo-seccion{text-align:center;margin-bottom:14px;font-size:2rem;color:var(--blanco)}
.titulo-seccion::after{content:"";display:block;width:54px;height:3px;background:var(--oro);margin:12px auto 0;border-radius:99px}
.sub-seccion{text-align:center;color:var(--texto-tenue);max-width:640px;margin:0 auto 42px}
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}

.tarjeta{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:28px;box-shadow:var(--sombra);display:flex;flex-direction:column;transition:border-color .15s, transform .15s}
.tarjeta:hover{border-color:var(--oro);transform:translateY(-3px)}
.tarjeta .icono{font-size:2rem;margin-bottom:12px}
.tarjeta h3{margin-bottom:8px;color:var(--oro-claro)}
.tarjeta p{color:var(--texto-tenue);font-size:.96rem;flex:1}
.tarjeta .pie{margin-top:18px}
.etiqueta{display:inline-block;padding:3px 12px;border-radius:999px;font-size:.75rem;font-weight:700;margin-bottom:12px}
.etiqueta.gratis{background:rgba(242,168,29,.16);color:var(--oro-claro)}
.etiqueta.pronto{background:#33302a;color:#d9b96a}
.etiqueta.premium{background:#2b2540;color:#b9a3ef}

.franja{background:linear-gradient(135deg,#2a2310,#161616);border-top:1px solid var(--borde);border-bottom:1px solid var(--borde);color:#fff;text-align:center;padding:56px 20px}
.franja h2{font-size:1.7rem;margin-bottom:12px;color:var(--oro-claro)}
.franja p{color:var(--texto-tenue);max-width:600px;margin:0 auto 26px}

.form-linea{display:flex;gap:10px;max-width:480px;margin:0 auto;flex-wrap:wrap;justify-content:center}
input,select{padding:12px 16px;border:1px solid var(--borde);border-radius:10px;font-size:1rem;font-family:inherit;background:var(--superficie-2);color:var(--texto)}
input::placeholder{color:#7d7d7d}
input:focus,select:focus{outline:2px solid var(--oro)}
label{font-weight:600;font-size:.92rem;display:block;margin-bottom:6px;color:var(--texto)}
.campo{margin-bottom:18px}

footer{background:#101010;color:var(--texto-tenue);padding:40px 20px;border-top:1px solid var(--borde);font-size:.92rem}
.pie-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer a{color:#d9d9d9}
footer a:hover{color:var(--oro-claro)}
.aviso-legal{margin-top:22px;font-size:.8rem;color:#6f6f6f;max-width:1100px;margin-left:auto;margin-right:auto}

.panel{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:32px;box-shadow:var(--sombra);max-width:760px;margin:0 auto}
.resultado{background:var(--superficie-2);border:1px solid var(--borde);border-radius:var(--radio);padding:24px;margin-top:24px}
.barra-contenedor{background:#333;border-radius:8px;height:26px;overflow:hidden;margin:6px 0 14px}
.barra{height:100%;border-radius:8px;color:#1a1a1a;font-size:.8rem;font-weight:700;display:flex;align-items:center;padding-left:10px;min-width:40px;transition:width .4s}
.opcion{display:block;width:100%;text-align:left;padding:12px 16px;border:1.5px solid var(--borde);border-radius:10px;margin-bottom:10px;cursor:pointer;background:var(--superficie-2);color:var(--texto);transition:all .15s;font-size:1rem;font-family:inherit}
.opcion:hover{border-color:var(--oro)}
.opcion.sel{border-color:var(--oro);background:rgba(242,168,29,.14);font-weight:600}
.progreso{height:8px;background:#333;border-radius:99px;margin-bottom:24px;overflow:hidden}
.progreso div{height:100%;background:var(--oro);border-radius:99px;transition:width .3s}

table{width:100%;border-collapse:collapse;margin:18px 0}
th,td{padding:10px 14px;border:1px solid var(--borde);text-align:left;font-size:.95rem}
th{background:var(--superficie-2);color:var(--oro-claro)}

.cabecera-pagina{background:radial-gradient(circle at 50% 0%,#262015 0%,#161616 70%);color:#fff;padding:56px 20px;text-align:center;border-bottom:1px solid var(--borde)}
.cabecera-pagina h1{font-size:2.2rem;margin-bottom:10px;color:var(--blanco)}
.cabecera-pagina p{color:var(--texto-tenue);max-width:640px;margin:0 auto}

@media(max-width:760px){
  .nav-toggle{display:block}
  .nav-links{display:none;flex-direction:column;width:100%;gap:14px;padding-top:12px}
  .nav-links.abierto{display:flex}
  .heroe{padding:60px 16px 50px}
  section{padding:44px 0}
}