/* LINKIA · página comercial (linkiared.com). Sin dependencias externas. */
:root {
  --bg: #070b14;
  --bg-2: #0a0f1d;
  --panel: rgba(15, 23, 42, 0.6);
  --borde: rgba(148, 163, 184, 0.14);
  --texto: #e2e8f0;
  --suave: #94a3b8;
  --indigo: #6366f1;
  --indigo-2: #4f46e5;
  --cian: #22d3ee;
  --esmeralda: #34d399;
  --radio: 18px;
  --sombra: 0 30px 80px -30px rgba(79, 70, 229, 0.45);
  --fuente: 'Inter', 'Segoe UI', system-ui, -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--texto); font: 400 16px/1.65 var(--fuente); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.025em; color: #fff; }
p { margin: 0; }
.contenedor { width: min(1180px, 100% - 40px); margin-inline: auto; }
.contenedor--estrecho { width: min(820px, 100% - 40px); }
.saltar { position: absolute; left: -999px; top: 8px; background: #fff; color: #000; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.saltar:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--cian); outline-offset: 3px; border-radius: 6px; }

/* Marca */
.marca { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: 0.04em; text-decoration: none; color: #fff; }
.marca__icono { width: 36px; height: 36px; border-radius: 11px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--indigo-2), var(--indigo) 50%, var(--cian)); box-shadow: 0 8px 24px -6px rgba(99, 102, 241, 0.6), inset 0 0 0 1px rgba(255, 255, 255, 0.2); }
.marca__icono svg { width: 20px; height: 20px; color: #fff; }

/* Botones */
.boton { display: inline-flex; align-items: center; gap: 10px; padding: 14px 24px; border-radius: 12px; font-weight: 700; font-size: 15px; text-decoration: none; transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease; white-space: nowrap; }
.boton svg { width: 18px; height: 18px; transition: transform 0.2s ease; }
.boton:hover svg { transform: translateX(3px); }
.boton--primario { color: #fff; background: linear-gradient(90deg, var(--indigo-2), #0891b2); box-shadow: 0 12px 30px -10px rgba(79, 70, 229, 0.7); }
.boton--primario:hover { transform: translateY(-1px); box-shadow: 0 16px 36px -10px rgba(34, 211, 238, 0.55); }
.boton--fantasma { color: var(--texto); border: 1px solid var(--borde); background: rgba(15, 23, 42, 0.5); }
.boton--fantasma:hover { border-color: rgba(99, 102, 241, 0.55); background: rgba(30, 41, 59, 0.6); }
.boton--claro { color: #1e1b4b; background: #fff; box-shadow: 0 14px 34px -12px rgba(0, 0, 0, 0.5); }
.boton--claro:hover { transform: translateY(-1px); }
.boton--sm { padding: 10px 18px; font-size: 14px; }

/* Navegación */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(7, 11, 20, 0.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--borde); }
.nav__fila { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.nav__links { display: flex; gap: 6px; }
.nav__links a { color: var(--suave); text-decoration: none; font-size: 14px; font-weight: 600; padding: 8px 14px; border-radius: 10px; }
.nav__links a:hover { color: #fff; background: rgba(30, 41, 59, 0.6); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 88px 0 96px; }
.hero__fondo { position: absolute; inset: 0; background:
  radial-gradient(60% 60% at 80% 20%, rgba(79, 70, 229, 0.28), transparent 70%),
  radial-gradient(45% 50% at 10% 80%, rgba(34, 211, 238, 0.14), transparent 70%),
  linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px) 0 0 / 48px 48px,
  linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px) 0 0 / 48px 48px;
  mask-image: linear-gradient(to bottom, #000 70%, transparent); -webkit-mask-image: linear-gradient(to bottom, #000 70%, transparent); }
.hero__grid { position: relative; display: grid; grid-template-columns: 1.02fr 1fr; gap: 56px; align-items: center; }
.etiqueta { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px; border: 1px solid rgba(99, 102, 241, 0.35); background: rgba(79, 70, 229, 0.12); color: #c7d2fe; font-size: 13px; font-weight: 600; letter-spacing: 0.02em; }
.punto { width: 8px; height: 8px; border-radius: 50%; background: var(--cian); box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.18); }
.hero h1 { font-size: clamp(40px, 5.4vw, 66px); font-weight: 800; margin: 22px 0 20px; }
.degradado { background: linear-gradient(90deg, #818cf8, var(--cian)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__lead { font-size: 18px; color: var(--suave); max-width: 560px; }
.hero__acciones { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero__confianza { list-style: none; padding: 0; margin: 36px 0 0; display: flex; flex-wrap: wrap; gap: 10px 26px; color: var(--suave); font-size: 14px; }
.hero__confianza li { display: inline-flex; align-items: center; gap: 8px; }
.hero__confianza svg { width: 18px; height: 18px; color: var(--esmeralda); }
.hero__visual { position: relative; }
.hero__visual img { border-radius: 24px; border: 1px solid var(--borde); box-shadow: var(--sombra); aspect-ratio: 16 / 10; object-fit: cover; }
.tarjeta-flotante { position: absolute; display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 14px; background: rgba(10, 15, 29, 0.85); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid var(--borde); box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.7); animation: flotar 6s ease-in-out infinite; }
.tarjeta-flotante strong { display: block; font-size: 14px; color: #fff; }
.tarjeta-flotante small { color: var(--suave); font-size: 12px; }
.tarjeta-flotante--a { left: -28px; bottom: 28px; }
.tarjeta-flotante--b { right: -20px; top: 24px; animation-delay: -3s; }
@keyframes flotar { 50% { transform: translateY(-8px); } }

/* Íconos */
.icono { width: 38px; height: 38px; border-radius: 11px; display: inline-flex; align-items: center; justify-content: center; }
.icono--lg { width: 52px; height: 52px; border-radius: 14px; }
.icono--lg svg { width: 26px; height: 26px; }
.icono--cian { background: rgba(34, 211, 238, 0.14); color: var(--cian); border: 1px solid rgba(34, 211, 238, 0.3); }
.icono--indigo { background: rgba(99, 102, 241, 0.16); color: #a5b4fc; border: 1px solid rgba(99, 102, 241, 0.35); }
.icono--esmeralda { background: rgba(52, 211, 153, 0.14); color: var(--esmeralda); border: 1px solid rgba(52, 211, 153, 0.3); }

/* Secciones */
.seccion { padding: 104px 0; }
.seccion--alterna { background: linear-gradient(180deg, var(--bg-2), var(--bg)); border-block: 1px solid var(--borde); }
.seccion__cabecera { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.sobretitulo { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--cian); margin-bottom: 14px; }
.seccion h2 { font-size: clamp(30px, 3.6vw, 44px); font-weight: 800; }
.seccion__cabecera p { margin-top: 16px; color: var(--suave); font-size: 17px; }

/* Pilares */
.pilares { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pilar { padding: 32px; border-radius: var(--radio); background: var(--panel); border: 1px solid var(--borde); transition: transform 0.25s ease, border-color 0.25s ease; scroll-margin-top: 100px; }
.pilar:hover { transform: translateY(-4px); border-color: rgba(99, 102, 241, 0.45); }
.pilar--destacado { background: linear-gradient(160deg, rgba(79, 70, 229, 0.2), rgba(15, 23, 42, 0.7) 60%); border-color: rgba(99, 102, 241, 0.4); }
.pilar h3 { font-size: 21px; margin: 22px 0 10px; }
.pilar p { color: var(--suave); font-size: 15px; }
.lista-check { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; font-size: 14px; color: #cbd5e1; }
.lista-check li { position: relative; padding-left: 28px; }
.lista-check li::before { content: ''; position: absolute; left: 0; top: 3px; width: 18px; height: 18px; border-radius: 50%; background: rgba(52, 211, 153, 0.16) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2334d399' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 12px no-repeat; }

/* Pasos */
.pasos { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: paso; position: relative; }
.paso { position: relative; padding: 32px; border-radius: var(--radio); background: var(--panel); border: 1px solid var(--borde); }
.paso__num { width: 44px; height: 44px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--indigo-2), var(--cian)); box-shadow: 0 10px 24px -8px rgba(79, 70, 229, 0.7); }
.paso h3 { font-size: 19px; margin: 20px 0 10px; }
.paso p { color: var(--suave); font-size: 15px; }

/* Transparencia */
.transparencia { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.transparencia__texto > p { margin-top: 16px; color: var(--suave); font-size: 17px; }
.datos { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 32px 0 0; }
.datos div { padding: 18px; border-radius: 14px; border: 1px solid var(--borde); background: rgba(15, 23, 42, 0.45); }
.datos dt { font-weight: 700; color: #fff; font-size: 15px; }
.datos dd { margin: 6px 0 0; color: var(--suave); font-size: 14px; }
.panel-demo { border-radius: 20px; border: 1px solid var(--borde); background: linear-gradient(160deg, #0d1426, #0a0f1d); box-shadow: var(--sombra); overflow: hidden; }
.panel-demo__barra { display: flex; gap: 7px; padding: 14px 18px; border-bottom: 1px solid var(--borde); }
.panel-demo__barra span { width: 11px; height: 11px; border-radius: 50%; background: #334155; }
.panel-demo__barra span:first-child { background: #f43f5e; }
.panel-demo__barra span:nth-child(2) { background: #f59e0b; }
.panel-demo__barra span:last-child { background: #10b981; }
.panel-demo__cuerpo { padding: 28px; }
.panel-demo__titulo { font-weight: 700; color: #fff; }
.barras { display: flex; align-items: flex-end; gap: 16px; height: 200px; margin: 24px 0; padding-bottom: 26px; border-bottom: 1px dashed var(--borde); }
.barras div { flex: 1; height: var(--h); position: relative; border-radius: 10px 10px 4px 4px; background: linear-gradient(180deg, var(--cian), var(--indigo-2)); box-shadow: 0 0 24px -6px rgba(34, 211, 238, 0.5); }
.barras span { position: absolute; bottom: -26px; left: 50%; transform: translateX(-50%); font-size: 12px; color: var(--suave); font-weight: 600; }
.panel-demo__kpis { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.panel-demo__kpis div { padding: 14px; border-radius: 12px; background: rgba(30, 41, 59, 0.45); }
.panel-demo__kpis small { display: block; color: var(--suave); font-size: 12px; }
.panel-demo__kpis strong { color: #fff; font-size: 17px; }
.panel-demo__kpis .ok { color: var(--esmeralda); }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { border-radius: 14px; border: 1px solid var(--borde); background: var(--panel); padding: 0 22px; transition: border-color 0.2s ease; }
.faq details[open] { border-color: rgba(99, 102, 241, 0.45); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 0; font-weight: 700; color: #fff; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 22px; line-height: 1; color: var(--cian); transition: transform 0.2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 0 20px; color: var(--suave); }

/* CTA */
.cta { padding: 96px 0; }
.cta__caja { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 48px 56px; border-radius: 26px; background: radial-gradient(80% 140% at 100% 0%, rgba(34, 211, 238, 0.35), transparent 60%), linear-gradient(120deg, #3730a3, var(--indigo-2) 50%, #0e7490); box-shadow: 0 40px 90px -40px rgba(79, 70, 229, 0.8); }
.cta h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; }
.cta p { margin-top: 10px; color: #e0e7ff; }

/* Pie */
.pie { border-top: 1px solid var(--borde); padding: 64px 0 28px; background: var(--bg-2); }
.pie__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.pie__lema { margin-top: 14px; color: var(--suave); font-size: 14px; }
.pie h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--suave); margin-bottom: 14px; }
.pie nav a { display: block; color: #cbd5e1; text-decoration: none; font-size: 14px; padding: 5px 0; }
.pie nav a:hover { color: #fff; }
.pie__legal { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--borde); color: #64748b; font-size: 13px; }

/* Responsive */
@media (max-width: 980px) {
  .hero { padding: 56px 0 72px; }
  .hero__grid, .transparencia { grid-template-columns: 1fr; gap: 48px; }
  .pilares, .pasos { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .tarjeta-flotante--a { left: 12px; bottom: -18px; }
  .tarjeta-flotante--b { right: 12px; top: -18px; }
  .cta__caja { flex-direction: column; align-items: flex-start; padding: 36px 28px; }
  .pie__grid { grid-template-columns: 1fr 1fr; }
  .pie__grid > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .seccion { padding: 72px 0; }
  .hero h1 { font-size: 38px; }
  .hero__acciones .boton { width: 100%; justify-content: center; }
  .datos { grid-template-columns: 1fr; }
  .tarjeta-flotante { display: none; }
  .pie__legal { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}