:root {
  --fondo: #0a0a0a; --capa: #111; --capa-2: #161616; --borde: rgba(255,255,255,.08); --borde-2: rgba(255,255,255,.14);
  --texto: #ededed; --tenue: #a1a1a1; --muy-tenue: #6b6b6b;
  --oro: #d4af37; --oro-2: #f2cd5c; --oro-3: #a8850f; --verde: #3ecf8e; --rojo: #ff6b6b;
  --ease-out: cubic-bezier(.23, 1, .32, 1); --ease-io: cubic-bezier(.77, 0, .175, 1); --ease-drawer: cubic-bezier(.32, .72, 0, 1);
  --r: 16px; --ancho: 1120px;
  --sans: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif; --mono: 'Geist Mono', ui-monospace, Consolas, monospace;
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
button, a, label, summary { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--oro); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { text-wrap: balance; margin: 0; letter-spacing: -.035em; line-height: 1.05; }
p { text-wrap: pretty; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0; }
.oro { background: linear-gradient(135deg, var(--oro-2), var(--oro) 50%, var(--oro-3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tenue { color: var(--muy-tenue); }
.saltar { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--oro); color: #111; padding: 8px 14px; border-radius: 8px; }
.saltar:focus { left: 16px; }

/* Botones: respuesta táctil inmediata (scale .97), transiciones cortas */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; border-radius: 999px; border: 1px solid transparent; font-weight: 500; text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform .16s var(--ease-out), background-color .2s, border-color .2s, box-shadow .25s var(--ease-out), opacity .2s; }
.btn:active { transform: scale(.97); }
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn-oro { background: linear-gradient(135deg, var(--oro-2), var(--oro) 55%, var(--oro-3)); color: #141005; box-shadow: 0 0 0 1px rgba(242,205,92,.4) inset, 0 8px 30px -10px rgba(212,175,55,.6); }
.btn-cristal { background: rgba(255,255,255,.06); border-color: var(--borde-2); backdrop-filter: blur(12px); }
.btn-fantasma { background: transparent; border: 1px dashed var(--borde-2); color: var(--tenue); }
.btn-sm { min-height: 36px; padding: 0 14px; font-size: 14px; }
.btn-xl { min-height: 56px; padding: 0 30px; font-size: 17px; }
.btn.ancho { width: 100%; }
.btn[aria-busy="true"] { opacity: .7; pointer-events: none; }
.btn[aria-busy="true"]::before { content: ''; width: 14px; height: 14px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: gira .7s linear infinite; }
@keyframes gira { to { transform: rotate(360deg); } }
@media (hover: hover) and (pointer: fine) {
  .btn-oro:hover { box-shadow: 0 0 0 1px rgba(242,205,92,.6) inset, 0 10px 40px -8px rgba(212,175,55,.8); }
  .btn-cristal:hover, .btn-fantasma:hover { background: rgba(255,255,255,.1); color: var(--texto); }
}

/* Navegación: material de vidrio que aparece al bajar */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; padding: 12px 16px; transition: padding .3s var(--ease-out); }
.nav-in { max-width: var(--ancho); margin: 0 auto; display: flex; align-items: center; gap: 24px; height: 52px; padding: 0 8px 0 16px; border-radius: 999px; border: 1px solid transparent; transition: background-color .3s, border-color .3s, backdrop-filter .3s; }
.nav.solida .nav-in { background: rgba(17,17,17,.72); border-color: var(--borde); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); }
.marca { display: flex; align-items: center; gap: 10px; font-weight: 600; text-decoration: none; letter-spacing: -.02em; }
.nav nav { display: flex; gap: 4px; margin-right: auto; }
.nav nav a { padding: 6px 12px; border-radius: 999px; color: var(--tenue); text-decoration: none; font-size: 14px; transition: color .2s, background-color .2s; }
.nav nav a:hover, .nav nav a[aria-current] { color: var(--texto); background: rgba(255,255,255,.06); }
.k { display: flex; align-items: center; gap: 10px; height: 36px; padding: 0 6px 0 12px; border-radius: 999px; border: 1px solid var(--borde); background: rgba(255,255,255,.03); color: var(--tenue); font-size: 14px; cursor: pointer; transition: border-color .2s, color .2s; }
.k:hover { border-color: var(--borde-2); color: var(--texto); }
kbd { font: 11px var(--mono); padding: 3px 6px; border-radius: 6px; background: rgba(255,255,255,.08); border: 1px solid var(--borde); }

/* Hero */
.hero { position: relative; min-height: 100svh; display: grid; grid-template-columns: 1.05fr 1fr; align-items: center; gap: 48px; max-width: var(--ancho); margin: 0 auto; padding: 120px 16px 80px; }
.rejilla { position: absolute; inset: 0 -50vw; z-index: -1; background-image: linear-gradient(var(--borde) 1px, transparent 1px), linear-gradient(90deg, var(--borde) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(ellipse 60% 55% at 50% 40%, #000 30%, transparent 75%); opacity: .5; }
.foco { position: absolute; z-index: -1; width: 640px; height: 640px; left: var(--fx, 60%); top: var(--fy, 40%); translate: -50% -50%; background: radial-gradient(circle, rgba(212,175,55,.18), transparent 60%); pointer-events: none; transition: left .6s var(--ease-out), top .6s var(--ease-out); }
.pastilla { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 10px; border-radius: 999px; border: 1px solid var(--borde-2); background: rgba(255,255,255,.04); font-size: 13px; color: var(--tenue); margin: 0 0 24px; }
.punto { width: 8px; height: 8px; border-radius: 50%; background: var(--verde); box-shadow: 0 0 0 0 rgba(62,207,142,.6); animation: late 2s var(--ease-out) infinite; }
@keyframes late { 70% { box-shadow: 0 0 0 8px rgba(62,207,142,0); } 100% { box-shadow: 0 0 0 0 rgba(62,207,142,0); } }
h1 { font-size: clamp(44px, 7vw, 84px); font-weight: 700; }
.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--tenue); max-width: 34em; margin: 24px 0 0; }
.acciones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.nota { font-size: 13px; color: var(--muy-tenue); margin: 16px 0 0; }

/* Factura viva */
.escena { position: relative; perspective: 1200px; min-width: 0; }
.factura { position: relative; padding: 24px; border-radius: 20px; background: linear-gradient(180deg, rgba(30,28,22,.9), rgba(16,16,16,.95)); border: 1px solid var(--borde-2); box-shadow: 0 40px 80px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(212,175,55,.08), inset 0 1px 0 rgba(255,255,255,.08);
  transform: rotateX(var(--rx, 6deg)) rotateY(var(--ry, -10deg)); transform-style: preserve-3d; transition: transform .5s var(--ease-out); }
.factura::after { content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: radial-gradient(400px circle at var(--gx, 30%) var(--gy, 0%), rgba(255,255,255,.08), transparent 50%); }
.f-cab { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid var(--borde); }
.f-cab > div:first-child { display: flex; align-items: center; gap: 10px; }
.f-num { text-align: right; } .f-num small, .f-pie small { display: block; font-size: 11px; color: var(--muy-tenue); text-transform: uppercase; letter-spacing: .08em; }
.f-num span { font-size: 13px; color: var(--oro-2); }
.f-lineas { list-style: none; margin: 0; padding: 14px 0; border-bottom: 1px solid var(--borde); }
.f-lineas li { display: flex; justify-content: space-between; padding: 7px 0; font-size: 14px; color: var(--tenue);
  opacity: 0; transform: translateY(8px); filter: blur(4px); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out), filter .5s var(--ease-out); transition-delay: calc(.9s + var(--i) * .18s); }
.factura.viva .f-lineas li { opacity: 1; transform: none; filter: none; }
.f-tot { padding-top: 12px; font-size: 14px; }
.f-tot div { display: flex; justify-content: space-between; padding: 3px 0; color: var(--tenue); }
.f-tot .grande { margin-top: 8px; color: var(--texto); font-size: 22px; font-weight: 600; letter-spacing: -.02em; }
.f-pie { display: flex; align-items: center; gap: 14px; margin-top: 18px; padding: 12px; border-radius: 12px; background: rgba(255,255,255,.03); border: 1px solid var(--borde); }
.f-pie > div:nth-child(2) { flex: 1; min-width: 0; } .f-pie .mono { display: block; font-size: 11px; color: var(--tenue); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qr { display: grid; grid-template-columns: repeat(3, 8px); gap: 2px; padding: 6px; background: #fff; border-radius: 6px; }
.qr i { width: 8px; height: 8px; background: #111; } .qr i:nth-child(2), .qr i:nth-child(6), .qr i:nth-child(8) { background: #fff; }
.sello { font-size: 12px; font-weight: 600; color: var(--verde); padding: 4px 10px; border-radius: 999px; background: rgba(62,207,142,.1); white-space: nowrap;
  opacity: 0; transform: scale(.9); transition: opacity .4s var(--ease-out) 2.4s, transform .4s var(--ease-out) 2.4s; }
.factura.viva .sello { opacity: 1; transform: none; }
.flotante { position: absolute; font-size: 13px; padding: 10px 14px; border-radius: 12px; background: rgba(22,22,22,.85); border: 1px solid var(--borde-2); backdrop-filter: blur(16px); box-shadow: 0 20px 40px -20px #000; white-space: nowrap; animation: flota 6s ease-in-out infinite; }
.flotante .ok { color: var(--verde); margin-right: 4px; }
.f1 { top: -22px; right: -8px; } .f2 { bottom: -24px; left: -18px; animation-delay: -3s; }
@keyframes flota { 50% { transform: translateY(-8px); } }

/* Cinta de plataformas */
.franja { border-block: 1px solid var(--borde); overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent); }
.cinta-in { display: flex; width: max-content; animation: cinta 40s linear infinite; }
.cinta-in span { padding: 22px 28px; color: var(--muy-tenue); font-size: 15px; white-space: nowrap; }
.cinta-in span::before { content: '◆'; color: var(--oro); opacity: .5; margin-right: 28px; font-size: 9px; vertical-align: middle; }
.franja:hover .cinta-in { animation-play-state: paused; }
@keyframes cinta { to { transform: translateX(-50%); } }

/* Secciones */
.seccion { max-width: var(--ancho); margin: 0 auto; padding: 120px 16px 0; }
.seccion.estrecha { max-width: 760px; }
.cab { text-align: center; margin-bottom: 56px; }
.cab.izq { text-align: left; margin: 0; }
.cab .lead { margin-inline: auto; } .cab.izq .lead { margin-inline: 0; }
.eti { font: 500 13px var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--oro); margin: 0 0 16px; }
h2 { font-size: clamp(32px, 4.6vw, 56px); font-weight: 700; }
h3 { font-size: 18px; font-weight: 600; letter-spacing: -.02em; }

/* Aparición al hacer scroll: opacidad + desplazamiento + desenfoque, escalonado */
.revela { opacity: 0; transform: translateY(16px); filter: blur(6px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out), filter .7s var(--ease-out); transition-delay: calc(var(--i, 0) * 70ms); }
.revela.en { opacity: 1; transform: none; filter: none; }

/* Bento con foco que sigue al puntero */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.caja { position: relative; padding: 28px; border-radius: var(--r); background: var(--capa); border: 1px solid var(--borde); overflow: hidden; isolation: isolate; }
.caja.ancha { grid-column: span 2; }
.caja::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity .3s; background: radial-gradient(420px circle at var(--x, 50%) var(--y, 50%), rgba(212,175,55,.12), transparent 45%); }
.caja::after { content: ''; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(300px circle at var(--x, 50%) var(--y, 50%), rgba(242,205,92,.5), transparent 50%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
@media (hover: hover) and (pointer: fine) { .bento:hover .caja::before, .bento:hover .caja::after { opacity: 1; } }
.caja-ico { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 10px; background: rgba(212,175,55,.1); color: var(--oro-2); border: 1px solid rgba(212,175,55,.2); margin-bottom: 20px; font-weight: 700; }
.caja p { color: var(--tenue); font-size: 15px; margin: 8px 0 0; }
.plan-eti { position: absolute; top: 24px; right: 24px; font: 11px var(--mono); color: var(--muy-tenue); padding: 3px 8px; border: 1px solid var(--borde); border-radius: 999px; }
.enlace { display: inline-block; margin-top: 16px; color: var(--oro-2); text-decoration: none; font-size: 15px; font-weight: 500; }
.enlace:hover { text-decoration: underline; text-underline-offset: 4px; }
.flujo { display: flex; align-items: center; gap: 8px; margin-top: 22px; flex-wrap: wrap; font: 12px var(--mono); }
.flujo span { padding: 6px 10px; border-radius: 8px; border: 1px solid var(--borde-2); background: var(--capa-2); }
.flujo .fin { color: var(--oro-2); border-color: rgba(212,175,55,.4); }
.flujo i { width: 20px; height: 1px; background: linear-gradient(90deg, var(--borde-2), var(--oro)); position: relative; overflow: hidden; }
.flujo i::after { content: ''; position: absolute; inset: 0; background: var(--oro-2); transform: translateX(-100%); animation: corre 2.4s var(--ease-io) infinite; }
.flujo i:nth-of-type(2)::after { animation-delay: .4s; } .flujo i:nth-of-type(3)::after { animation-delay: .8s; }
@keyframes corre { 50%, 100% { transform: translateX(100%); } }

/* Demo de factura */
.demo { display: grid; grid-template-columns: 1fr 340px; gap: 12px; }
.demo-tabla, .demo-res { padding: 20px; border-radius: var(--r); background: var(--capa); border: 1px solid var(--borde); }
.d-fila { display: grid; grid-template-columns: 1fr 72px 96px 92px 104px 36px; gap: 8px; align-items: center; padding: 6px 0; }
.d-cab { font: 11px var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muy-tenue); border-bottom: 1px solid var(--borde); padding-bottom: 10px; margin-bottom: 6px; }
.der { text-align: right; }
.d-fila input, .d-fila select, .campo input, .campo select, .campo textarea, .campo-linea select {
  width: 100%; min-height: 40px; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--borde); background: var(--capa-2); font-size: 15px; transition: border-color .2s, box-shadow .2s; }
.d-fila input:focus, .d-fila select:focus, .campo :is(input, select, textarea):focus, .campo-linea select:focus { outline: none; border-color: var(--oro); box-shadow: 0 0 0 3px rgba(212,175,55,.2); }
.d-fila input[type=number] { font-family: var(--mono); text-align: right; }
.d-imp { text-align: right; font-size: 14px; }
.d-quitar { width: 36px; height: 36px; border-radius: 10px; border: 0; background: transparent; color: var(--muy-tenue); cursor: pointer; transition: background-color .2s, color .2s; }
.d-quitar:hover { background: rgba(255,107,107,.1); color: var(--rojo); }
.d-linea { animation: entra .35s var(--ease-out); }
@keyframes entra { from { opacity: 0; transform: translateY(-6px); } }
#d-anadir { margin-top: 10px; }
.campo-linea { display: grid; gap: 6px; font-size: 13px; color: var(--tenue); }
.totales { margin: 20px 0 0; }
.totales div { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--borde); color: var(--tenue); font-size: 15px; }
.totales dd { margin: 0; color: var(--texto); }
.totales .grande { border: 0; padding-top: 16px; font-size: 26px; font-weight: 600; color: var(--texto); letter-spacing: -.02em; }
.totales .grande dd { color: var(--oro-2); }
.huella { margin-top: 12px; padding: 12px; border-radius: 12px; background: var(--capa-2); border: 1px solid var(--borde); }
.huella small { display: block; font-size: 11px; color: var(--muy-tenue); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 6px; }
.huella code { display: block; font-size: 12px; line-height: 1.5; word-break: break-all; color: var(--tenue); transition: color .4s; }
.huella code.cambia { color: var(--oro-2); transition: none; }

/* Historia Veri*Factu */
.historia-in { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.historia-vis { position: sticky; top: 18vh; height: 64vh; display: grid; place-items: center; }
.vis { position: relative; width: min(360px, 100%); aspect-ratio: 3 / 4; }
.vis-doc { position: absolute; inset: 0; border-radius: 20px; padding: 28px; background: linear-gradient(180deg, #1a1813, #101010); border: 1px solid var(--borde-2); box-shadow: 0 40px 80px -30px #000; transition: transform .6s var(--ease-out), box-shadow .6s; }
.vis-l { height: 10px; border-radius: 4px; background: rgba(255,255,255,.08); margin-bottom: 14px; } .vis-l.c { width: 60%; }
.vis-cadena { display: flex; gap: 6px; margin-top: 28px; font: 11px var(--mono); }
.vis-cadena span { padding: 6px 8px; border-radius: 6px; border: 1px solid var(--borde); color: var(--muy-tenue); transition: all .5s var(--ease-out); }
.vis-cadena .nueva { opacity: 0; transform: translateX(-12px); }
.vis-firma, .vis-aeat { position: absolute; left: 28px; right: 28px; padding: 10px 14px; border-radius: 10px; font-size: 14px; font-weight: 500; opacity: 0; transform: translateY(10px) scale(.96); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
.vis-firma { bottom: 128px; background: rgba(212,175,55,.1); border: 1px solid rgba(212,175,55,.3); color: var(--oro-2); }
.vis-aeat { bottom: 76px; background: rgba(62,207,142,.1); border: 1px solid rgba(62,207,142,.3); color: var(--verde); }
.vis-qr { position: absolute; right: 28px; bottom: 20px; display: grid; grid-template-columns: repeat(3, 12px); gap: 3px; padding: 8px; background: #fff; border-radius: 8px; opacity: 0; transform: scale(.9); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
.vis-qr i { width: 12px; height: 12px; background: #111; } .vis-qr i:nth-child(2), .vis-qr i:nth-child(6), .vis-qr i:nth-child(8) { background: #fff; }
.vis[data-paso="0"] .vis-doc { transform: rotate(-2deg); }
.vis:not([data-paso="0"]) .vis-cadena span { border-color: rgba(212,175,55,.3); color: var(--tenue); }
.vis:not([data-paso="0"]) .vis-cadena .nueva { opacity: 1; transform: none; color: var(--oro-2); }
.vis:is([data-paso="2"], [data-paso="3"], [data-paso="4"]) .vis-firma,
.vis:is([data-paso="3"], [data-paso="4"]) .vis-aeat, .vis[data-paso="4"] .vis-qr { opacity: 1; transform: none; }
.vis[data-paso="4"] .vis-doc { box-shadow: 0 40px 100px -30px rgba(212,175,55,.35); }
.pasos { list-style: none; margin: 0; padding: 10vh 0 30vh; }
.paso { padding: 28px 0 28px 24px; min-height: 30vh; border-left: 2px solid var(--borde); opacity: .35; transition: opacity .4s var(--ease-out), border-color .4s; }
.paso.activo { opacity: 1; border-color: var(--oro); }
.paso > span { font-size: 13px; color: var(--oro); }
.paso h3 { font-size: 26px; margin: 8px 0; }
.paso p { color: var(--tenue); margin: 0; max-width: 28em; }

/* ZEUS */
.dos { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.chip { min-height: 40px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--borde-2); background: rgba(255,255,255,.03); color: var(--tenue); font-size: 14px; cursor: pointer; text-align: left; transition: transform .16s var(--ease-out), border-color .2s, color .2s, background-color .2s; }
.chip:hover { color: var(--texto); border-color: var(--oro); } .chip:active { transform: scale(.97); }
.chip[aria-pressed="true"] { background: rgba(212,175,55,.12); border-color: var(--oro); color: var(--oro-2); }
.chat { border-radius: 20px; background: var(--capa); border: 1px solid var(--borde); overflow: hidden; }
.chat-cab { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--borde); font-weight: 600; }
.chat-cab small { margin-left: auto; font-weight: 400; color: var(--muy-tenue); font-size: 12px; }
.chat-cuerpo { height: 380px; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 10px; scroll-behavior: smooth; }
.msg { max-width: 88%; padding: 10px 14px; border-radius: 16px; font-size: 15px; white-space: pre-line; animation: entra .3s var(--ease-out); }
.msg.zeus { background: var(--capa-2); border: 1px solid var(--borde); border-bottom-left-radius: 4px; }
.msg.yo { align-self: flex-end; background: linear-gradient(135deg, var(--oro), var(--oro-3)); color: #141005; border-bottom-right-radius: 4px; }
.msg b { color: var(--oro-2); font-weight: 600; }
.escribiendo { display: inline-flex; gap: 4px; padding: 14px; } .escribiendo i { width: 6px; height: 6px; border-radius: 50%; background: var(--tenue); animation: salta 1s infinite; }
.escribiendo i:nth-child(2) { animation-delay: .15s; } .escribiendo i:nth-child(3) { animation-delay: .3s; }
@keyframes salta { 30% { transform: translateY(-4px); opacity: 1; } 0%, 60%, 100% { opacity: .4; } }

/* Privacidad */
.privado { display: grid; grid-template-columns: 200px 1fr; gap: 48px; align-items: center; padding: 56px; border-radius: 24px; border: 1px solid var(--borde); background: radial-gradient(ellipse at 0% 0%, rgba(212,175,55,.08), transparent 50%), var(--capa); }
.candado svg { width: 100%; fill: none; stroke: var(--oro); stroke-width: 2.4; stroke-linecap: round; filter: drop-shadow(0 0 30px rgba(212,175,55,.4)); }
.candado path { stroke-dasharray: 60; stroke-dashoffset: 60; transition: stroke-dashoffset 1.2s var(--ease-out) .3s; }
.privado.en .candado path { stroke-dashoffset: 0; }
.privado h2 { font-size: clamp(28px, 3.4vw, 40px); }
.lista { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 10px; }
.lista li { padding-left: 28px; position: relative; color: var(--tenue); }
.lista li::before { content: '✓'; position: absolute; left: 0; color: var(--verde); font-weight: 700; }

/* Planes */
.uso { position: relative; display: flex; width: max-content; max-width: 100%; margin: 0 auto 40px; padding: 4px; border-radius: 999px; background: var(--capa); border: 1px solid var(--borde); }
.uso button { position: relative; z-index: 1; min-height: 40px; padding: 0 18px; border: 0; border-radius: 999px; background: none; color: var(--tenue); font-size: 14px; cursor: pointer; transition: color .25s; }
.uso button[aria-checked="true"] { color: #141005; font-weight: 500; }
.uso-pildora { position: absolute; top: 4px; bottom: 4px; left: 0; border-radius: 999px; background: linear-gradient(135deg, var(--oro-2), var(--oro)); transition: transform .4s var(--ease-drawer), width .4s var(--ease-drawer); }
.planes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.plan { position: relative; display: flex; flex-direction: column; padding: 32px; border-radius: 20px; background: var(--capa); border: 1px solid var(--borde); transition: transform .3s var(--ease-out), border-color .3s; }
@media (hover: hover) and (pointer: fine) { .plan:hover { transform: translateY(-4px); border-color: var(--borde-2); } }
.plan.destacado { border-color: rgba(212,175,55,.5); background: radial-gradient(ellipse at 50% 0%, rgba(212,175,55,.12), transparent 60%), var(--capa); }
.plan .insignia { position: absolute; top: -12px; left: 32px; font: 500 12px var(--mono); padding: 4px 10px; border-radius: 999px; background: var(--oro); color: #141005; }
.plan h3 { font-size: 22px; }
.plan .para { color: var(--muy-tenue); font-size: 14px; margin: 6px 0 20px; min-height: 2.6em; }
.plan .precio { font-size: 32px; font-weight: 700; letter-spacing: -.03em; }
.plan .precio small { display: block; margin-top: 4px; font-size: 14px; font-weight: 400; color: var(--muy-tenue); letter-spacing: 0; }
.plan ul { list-style: none; padding: 0; margin: 24px 0 28px; display: grid; gap: 10px; font-size: 14px; flex: 1; }
.plan li { padding-left: 24px; position: relative; color: var(--tenue); }
.plan li::before { content: '✓'; position: absolute; left: 0; color: var(--oro); }
.plan li.mas { color: var(--texto); font-weight: 500; } .plan li.mas::before { content: '+'; }

/* Descarga */
.descarga { position: relative; overflow: hidden; text-align: center; padding: 88px 24px; border-radius: 28px; border: 1px solid rgba(212,175,55,.25); background: linear-gradient(180deg, rgba(212,175,55,.06), transparent 60%), var(--capa); }
.descarga .foco { left: 50%; top: 0; }
.descarga .lead { margin-inline: auto; }
.descarga .btn-xl { margin-top: 36px; }
.mini-pasos { list-style: none; padding: 0; margin: 48px auto 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; max-width: 820px; }
.mini-pasos li { display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: 14px; color: var(--tenue); }
.mini-pasos b { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--borde-2); font: 500 13px var(--mono); color: var(--oro-2); }

/* FAQ: <details> nativo con apertura animada */
.faq { border-top: 1px solid var(--borde); }
.faq details { border-bottom: 1px solid var(--borde); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 22px 0; font-size: 18px; font-weight: 500; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 22px; color: var(--muy-tenue); transition: transform .3s var(--ease-out); }
.faq details[open] summary::after { transform: rotate(45deg); color: var(--oro); }
.faq details p { margin: 0 0 22px; color: var(--tenue); max-width: 40em; }
.faq details[open] p { animation: entra .35s var(--ease-out); }

.pie { max-width: var(--ancho); margin: 120px auto 0; padding: 32px 16px 48px; border-top: 1px solid var(--borde); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; color: var(--muy-tenue); font-size: 14px; }
.pie > div:first-child { display: flex; align-items: center; gap: 8px; }
.pie a { text-decoration: none; } .pie a:hover { color: var(--texto); }

/* Diálogos nativos con entrada y salida (@starting-style) */
dialog { padding: 0; border: 1px solid var(--borde-2); border-radius: 20px; background: rgba(20,20,20,.96); color: var(--texto); box-shadow: 0 40px 120px -20px #000; backdrop-filter: blur(20px);
  opacity: 0; transform: scale(.96) translateY(8px); transition: opacity .22s var(--ease-out), transform .22s var(--ease-out), overlay .22s allow-discrete, display .22s allow-discrete; }
dialog[open] { opacity: 1; transform: none; }
@starting-style { dialog[open] { opacity: 0; transform: scale(.96) translateY(8px); } }
dialog::backdrop { background: rgba(0,0,0,0); backdrop-filter: blur(0); transition: background-color .22s, backdrop-filter .22s, overlay .22s allow-discrete, display .22s allow-discrete; }
dialog[open]::backdrop { background: rgba(0,0,0,.6); backdrop-filter: blur(6px); }
@starting-style { dialog[open]::backdrop { background: rgba(0,0,0,0); backdrop-filter: blur(0); } }
#compra { width: min(520px, calc(100% - 32px)); max-height: calc(100dvh - 32px); }
#compra form { padding: 24px; display: grid; gap: 14px; }
#compra-campos { display: grid; gap: 14px; }
.dlg-cab { display: flex; justify-content: space-between; align-items: center; }
.dlg-cab h2 { font-size: 22px; letter-spacing: -.02em; }
.cerrar { width: 36px; height: 36px; border-radius: 50%; border: 0; background: rgba(255,255,255,.06); cursor: pointer; color: var(--tenue); }
.cerrar:hover { color: var(--texto); background: rgba(255,255,255,.1); }
.resumen { margin: 0; padding: 12px 14px; border-radius: 12px; background: rgba(212,175,55,.08); border: 1px solid rgba(212,175,55,.2); font-size: 14px; color: var(--oro-2); }
.campo { display: grid; gap: 6px; font-size: 13px; color: var(--tenue); }
.campo em { font-style: normal; color: var(--muy-tenue); }
.campo textarea { resize: vertical; min-height: 64px; }
.campo [aria-invalid="true"] { border-color: var(--rojo); }
.par { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.seg { display: flex; padding: 4px; margin: 0; border-radius: 12px; border: 1px solid var(--borde); background: var(--capa-2); }
.seg legend { font-size: 13px; color: var(--tenue); padding: 0; margin-bottom: 6px; float: left; width: 100%; }
.seg label { flex: 1; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; text-align: center; padding: 8px; border-radius: 9px; cursor: pointer; font-size: 14px; color: var(--tenue); transition: background-color .2s, color .2s; }
.seg input:checked + span { background: rgba(212,175,55,.15); color: var(--oro-2); }
.seg input:focus-visible + span { outline: 2px solid var(--oro); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--tenue); cursor: pointer; }
.check input { margin-top: 3px; accent-color: var(--oro); width: 16px; height: 16px; flex: none; }
.error { margin: 0; min-height: 1em; color: var(--rojo); font-size: 14px; }
.error:empty { display: none; }
.ok-panel { display: grid; gap: 16px; justify-items: center; text-align: center; padding: 12px 0; }
.ok-panel p { margin: 0; color: var(--tenue); }
.check-anim svg { width: 64px; height: 64px; fill: none; stroke: var(--verde); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.check-anim circle { stroke-dasharray: 151; stroke-dashoffset: 151; animation: traza .6s var(--ease-out) forwards; }
.check-anim path { stroke-dasharray: 36; stroke-dashoffset: 36; animation: traza .4s var(--ease-out) .45s forwards; }
@keyframes traza { to { stroke-dashoffset: 0; } }

#paleta { width: min(560px, calc(100% - 32px)); margin-top: 14vh; }
#paleta-q { width: 100%; border: 0; border-bottom: 1px solid var(--borde); background: none; padding: 18px 20px; font-size: 17px; outline: none; }
#paleta-lista { list-style: none; margin: 0; padding: 8px; max-height: 340px; overflow-y: auto; }
#paleta-lista li { display: flex; justify-content: space-between; padding: 12px 14px; border-radius: 10px; cursor: pointer; color: var(--tenue); font-size: 15px; }
#paleta-lista li small { color: var(--muy-tenue); font-family: var(--mono); font-size: 12px; }
#paleta-lista li[aria-selected="true"] { background: rgba(212,175,55,.1); color: var(--texto); }

/* Móvil */
@media (max-width: 900px) {
  .nav nav, .k span { display: none; }
  .nav-in { justify-content: space-between; gap: 8px; }
  .k { margin-left: auto; padding: 0 10px; }
  .hero { grid-template-columns: minmax(0, 1fr); padding-top: 110px; min-height: auto; }
  .escena { max-width: 440px; margin: 24px auto 0; width: 100%; }
  .flotante { display: none; }
  .bento, .planes { grid-template-columns: minmax(0, 1fr); }
  .caja.ancha { grid-column: auto; }
  .demo, .dos, .historia-in { grid-template-columns: minmax(0, 1fr); }
  .historia-vis { top: 76px; height: 46vh; z-index: 1; background: linear-gradient(var(--fondo) 85%, transparent); }
  .vis { width: min(220px, 60%); }
  .pasos { padding-top: 0; }
  .paso { min-height: 40vh; }
  .privado { grid-template-columns: 1fr; padding: 32px 24px; gap: 24px; } .candado { width: 96px; }
  .mini-pasos { grid-template-columns: 1fr 1fr; }
  .seccion { padding-top: 88px; }
  .chat-cuerpo { height: 340px; }
}
@media (max-width: 640px) {
  .d-cab { display: none; }
  .d-fila { grid-template-columns: 1fr 1fr 1fr; padding: 12px 0; border-bottom: 1px solid var(--borde); }
  .d-fila input:first-child { grid-column: 1 / -1; }
  .d-imp { grid-column: 1 / 3; text-align: left; }
  .d-quitar { justify-self: end; }
  .uso button { padding: 0 12px; font-size: 13px; }
  .par { grid-template-columns: 1fr; }
  /* En móvil la compra sube como hoja desde abajo */
  #compra { margin: auto 0 0; width: 100%; max-width: none; border-radius: 20px 20px 0 0; transform: translateY(100%); transition-timing-function: var(--ease-drawer); transition-duration: .4s; }
  #compra[open] { transform: none; }
  @starting-style { #compra[open] { transform: translateY(100%); } }
  input, select, textarea { font-size: 16px !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
  .revela { filter: none; transform: none; }
  .factura { transform: none; }
}

/* Plan único, código del dispositivo y modo prueba */
.planes:has(.plan.unico) { grid-template-columns: minmax(0, 560px); justify-content: center; }
.plan.unico ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.codigo-equipo { display: flex; align-items: center; justify-content: space-between; gap: 16px; max-width: 560px; margin: 0 auto 20px; padding: 18px 22px; border-radius: 16px; border: 1px dashed var(--borde-2); background: var(--capa); }
.codigo-equipo .eti-codigo { display: block; font: 500 12px var(--mono); color: var(--muy-tenue); text-transform: uppercase; letter-spacing: .08em; }
.codigo-equipo strong { display: block; margin: 4px 0; font: 600 30px var(--mono); letter-spacing: .12em; color: var(--muy-tenue); }
.codigo-equipo.con-codigo { border: 1px solid rgba(212,175,55,.6); }
.codigo-equipo.con-codigo strong { color: var(--oro); }
.codigo-equipo small { display: block; font-size: 13px; color: var(--muy-tenue); max-width: 40ch; }
.aviso-prueba { max-width: 560px; margin: 0 auto 16px; padding: 10px 14px; border-radius: 12px; border: 1px solid rgba(96,165,250,.5); background: rgba(96,165,250,.1); color: #bfdbfe; font-size: 14px; }
.pago-resumen { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 16px 0; font-size: 14px; }
.pago-resumen dt { color: var(--muy-tenue); }
.pago-resumen dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
#compra-pago .btn + .btn { margin-top: 8px; }
@media (max-width: 640px) { .plan.unico ul { grid-template-columns: minmax(0, 1fr); } .codigo-equipo { flex-direction: column; align-items: flex-start; } .codigo-equipo strong { font-size: 24px; } }
/* Los paneles del diálogo de compra tienen su propio display: «hidden» tiene que poder ocultarlos */
#form-compra [hidden] { display: none; }