/* Demo simulada «asistente que contesta mensajes» · Tuscape · estética «Seda» */
@font-face { font-family: "Instrument Serif"; font-style: normal; font-weight: 400; font-display: swap; src: url("fuentes/instrument-serif.woff2") format("woff2"); }
@font-face { font-family: "Instrument Serif"; font-style: italic; font-weight: 400; font-display: swap; src: url("fuentes/instrument-serif-italic.woff2") format("woff2"); }

:root {
  color-scheme: dark;
  --noche: #120E14;
  --noche-2: #1A141D;
  --noche-3: #231B27;
  --linea: rgba(232, 212, 180, .14);
  --linea-2: rgba(232, 212, 180, .26);
  --marfil: #F3EADB;
  --perla: #EFE8DC;
  --texto: #EDE4D6;
  --apagado: #B3A6A8;
  --champan: #DDBB82;
  --champan-2: #B98F52;
  --ciruela: #3A2236;
  --ciruela-2: #57304F;
  --tinta: #231A21;
  --serif: "Instrument Serif", "Cormorant Garamond", Georgia, serif;
  --sans: "Manrope", "Sora", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-width: 320px; overflow-x: hidden;
  background: var(--noche); color: var(--texto);
  font-family: var(--sans); font-size: 16px; line-height: 1.6; font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--champan); }
[hidden] { display: none !important; }
.ancho { width: min(1240px, 100% - 40px); margin-inline: auto; }
:focus-visible { outline: 2px solid var(--champan); outline-offset: 3px; border-radius: 6px; }
.saltar { position: absolute; left: 12px; top: -60px; z-index: 50; background: var(--marfil); color: var(--tinta); padding: 10px 14px; border-radius: 8px; text-decoration: none; font-weight: 600; }
.saltar:focus { top: 12px; }

/* Fondo de seda: tres manchas que se mueven solo con transform */
.seda { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; background: radial-gradient(120% 80% at 50% -10%, #221823 0%, var(--noche) 60%); }
.seda i { position: absolute; border-radius: 50%; opacity: .6; will-change: transform; }
.seda .s1 { width: 60vmax; height: 60vmax; left: -20vmax; top: -18vmax; background: radial-gradient(circle, rgba(111, 56, 94, .55), transparent 65%); animation: flota1 26s ease-in-out infinite alternate; }
.seda .s2 { width: 50vmax; height: 50vmax; right: -18vmax; top: 20vh; background: radial-gradient(circle, rgba(221, 187, 130, .22), transparent 65%); animation: flota2 32s ease-in-out infinite alternate; }
.seda .s3 { width: 44vmax; height: 44vmax; left: 20vw; bottom: -26vmax; background: radial-gradient(circle, rgba(87, 48, 79, .45), transparent 65%); animation: flota1 38s ease-in-out infinite alternate-reverse; }
@keyframes flota1 { to { transform: translate3d(8vmax, 6vmax, 0) scale(1.08); } }
@keyframes flota2 { to { transform: translate3d(-10vmax, -4vmax, 0) scale(.94); } }

/* Cabecera */
.cab { position: relative; z-index: 2; border-bottom: 1px solid var(--linea); }
.cab .ancho { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; padding-block: 10px; }
.marca { color: var(--marfil); text-decoration: none; font-family: "Chakra Petch", var(--sans); font-weight: 700; letter-spacing: .14em; font-size: 15px; display: inline-flex; align-items: center; gap: 10px; }
.marca small { color: var(--apagado); font-weight: 600; letter-spacing: .2em; font-size: 11px; }
.punto { width: 8px; height: 8px; border-radius: 50%; background: var(--champan); box-shadow: 0 0 12px var(--champan); }
.cab nav { display: flex; gap: 18px; font-size: 14px; }
.cab nav a { color: var(--texto); text-decoration: none; opacity: .85; }
.cab nav a:hover { opacity: 1; color: var(--champan); }

/* Intro */
.intro { padding: clamp(40px, 7vw, 88px) 0 clamp(24px, 4vw, 40px); max-width: 900px; margin-left: max(20px, (100% - 1240px) / 2); }
.antetitulo { margin: 0 0 14px; font-family: var(--mono); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--champan); }
h1, h2, h3 { font-weight: 400; margin: 0; }
h1 { font-family: var(--serif); font-size: clamp(40px, 6.4vw, 82px); line-height: 1.02; letter-spacing: -.01em; color: var(--marfil); }
h1 em, h2 em { font-style: italic; color: var(--champan); }
.entrada { margin: 22px 0 0; font-size: clamp(16px, 1.6vw, 19px); color: var(--apagado); max-width: 640px; }
.avisos { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.avisos li { display: inline-flex; align-items: baseline; gap: 8px; padding: 9px 14px; border: 1px solid var(--linea-2); border-radius: 999px; font-size: 14px; background: rgba(26, 20, 29, .6); backdrop-filter: blur(6px); }
.avisos strong { color: var(--marfil); font-weight: 600; }
.avisos .ico { color: var(--champan); }

/* Escenario */
.escenario { position: relative; display: grid; grid-template-columns: minmax(0, 430px) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: start; padding: 20px 0 80px; }
.hilo { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 3; overflow: visible; }
.hilo path { fill: none; stroke: var(--champan); stroke-width: 1.4; stroke-linecap: round; opacity: 0; stroke-dasharray: 1 1; stroke-dashoffset: 1; filter: drop-shadow(0 0 4px rgba(221, 187, 130, .6)); }
.hilo path.ve { opacity: .9; stroke-dashoffset: 0; transition: stroke-dashoffset .9s cubic-bezier(.6, 0, .2, 1), opacity .3s; }
.hilo path.sale { opacity: 0; transition: opacity .8s; }

.lado-movil { position: sticky; top: 20px; display: flex; flex-direction: column; align-items: center; gap: 18px; }
.movil { width: min(360px, 100%); perspective: 1400px; }
.movil-marco {
  position: relative; border-radius: 48px; padding: 11px;
  background: linear-gradient(145deg, #4A3F47 0%, #1C161D 38%, #2E262D 62%, #0E0B0F 100%);
  box-shadow: 0 0 0 1px rgba(255, 240, 220, .12) inset, 0 40px 80px -30px rgba(0, 0, 0, .8), 0 0 0 1px #000, 0 0 60px -10px rgba(221, 187, 130, .18);
  transform: rotateY(-7deg) rotateX(3deg); transform-style: preserve-3d; transition: transform .8s cubic-bezier(.2, .7, .2, 1);
}
.movil-marco::after { content: ""; position: absolute; inset: 0; border-radius: 48px; pointer-events: none; background: linear-gradient(115deg, rgba(255, 255, 255, .14) 0%, transparent 30%, transparent 70%, rgba(255, 255, 255, .05) 100%); }
.movil:hover .movil-marco { transform: rotateY(0) rotateX(0); }
.isla { position: absolute; top: 20px; left: 50%; width: 96px; height: 26px; margin-left: -48px; border-radius: 20px; background: #050405; z-index: 4; }
.pantalla { position: relative; border-radius: 38px; overflow: hidden; height: 640px; display: flex; flex-direction: column; background: var(--perla); background-image: radial-gradient(rgba(58, 34, 54, .06) 1px, transparent 1.2px); background-size: 14px 14px; color: var(--tinta); }
.chat-cab { display: flex; align-items: center; gap: 12px; padding: 52px 18px 14px; background: linear-gradient(180deg, #FBF7F0, #F2EADD); border-bottom: 1px solid rgba(58, 34, 54, .1); }
.monograma { flex: none; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; font-family: var(--serif); font-style: italic; font-size: 24px; color: var(--marfil); background: radial-gradient(circle at 30% 30%, var(--ciruela-2), var(--ciruela)); box-shadow: 0 0 0 2px #FBF7F0, 0 0 0 3px var(--champan-2); }
.chat-nombre { margin: 0; font-family: var(--serif); font-size: 21px; line-height: 1.1; color: var(--tinta); }
.chat-nombre span { font-family: var(--sans); font-size: 11px; color: #7A6A72; letter-spacing: .02em; }
.chat-sub { margin: 3px 0 0; font-size: 12px; color: #6B5A63; display: flex; align-items: center; gap: 6px; }
.luz { width: 7px; height: 7px; border-radius: 50%; background: var(--champan-2); animation: late 2.4s ease-in-out infinite; }
@keyframes late { 50% { opacity: .35; } }

.chat-cuerpo { flex: 1; position: relative; overflow: hidden; }
.chat-cuerpo::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 28px; z-index: 2; background: linear-gradient(var(--perla), transparent); pointer-events: none; }
.chat-lista { list-style: none; margin: 0; padding: 18px 14px 14px; display: flex; flex-direction: column; gap: 9px; transition: transform .6s cubic-bezier(.3, .7, .2, 1); will-change: transform; }
.msg { max-width: 84%; padding: 9px 13px 8px; border-radius: 18px; font-size: 14.5px; line-height: 1.42; animation: entra .45s cubic-bezier(.2, .8, .2, 1) both; transform-origin: bottom left; }
@keyframes entra { from { opacity: 0; transform: translate3d(0, 12px, 0) scale(.96); } }
.msg.cli { align-self: flex-end; background: linear-gradient(160deg, var(--ciruela-2), var(--ciruela)); color: #FBF3E8; border-bottom-right-radius: 6px; transform-origin: bottom right; }
.msg.asi { align-self: flex-start; background: #FFFDF9; color: var(--tinta); border-bottom-left-radius: 6px; box-shadow: 0 1px 0 rgba(58, 34, 54, .06), 0 6px 18px -10px rgba(58, 34, 54, .35); border-left: 2px solid var(--champan-2); }
.msg .quien { display: block; font-family: var(--mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: #9A7A4C; margin-bottom: 3px; }
.msg .regla { display: inline-block; margin-top: 6px; font-family: var(--mono); font-size: 9.5px; letter-spacing: .06em; color: #7A6A72; border: 1px solid rgba(58, 34, 54, .14); padding: 1px 7px; border-radius: 999px; }
.msg .regla.sin { color: #8A4B3C; border-color: rgba(138, 75, 60, .3); }
.msg .hora { display: block; text-align: right; font-size: 10px; opacity: .6; margin-top: 2px; font-variant-numeric: tabular-nums; }
.sistema { align-self: center; max-width: 92%; text-align: center; font-size: 11.5px; line-height: 1.4; color: #6B5A63; background: rgba(221, 187, 130, .22); border: 1px solid rgba(185, 143, 82, .3); padding: 6px 12px; border-radius: 12px; animation: entra .45s both; }
.fin { align-self: center; font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: #9A7A4C; padding: 4px 0; animation: entra .45s both; }
.escribiendo { align-self: flex-start; background: #FFFDF9; border-radius: 18px; border-bottom-left-radius: 6px; padding: 12px 14px; display: flex; gap: 5px; animation: entra .3s both; border-left: 2px solid var(--champan-2); }
.escribiendo i { width: 7px; height: 7px; border-radius: 50%; background: var(--champan-2); animation: salta 1s ease-in-out infinite; }
.escribiendo i:nth-child(2) { animation-delay: .15s; } .escribiendo i:nth-child(3) { animation-delay: .3s; }
@keyframes salta { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-5px); opacity: 1; } }
.opciones { align-self: flex-start; display: flex; flex-wrap: wrap; gap: 6px; animation: entra .45s both; }
.opciones span { font-size: 13px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--champan-2); color: #6E4F22; background: #FFF8EC; transition: transform .25s, background-color .25s, color .25s; }
.opciones span.pulsado { background: var(--champan-2); color: #fff; transform: scale(.94); }
.chat-pie { display: flex; align-items: center; gap: 8px; padding: 10px 12px 22px; background: #F6F0E6; border-top: 1px solid rgba(58, 34, 54, .08); }
.falso-campo { flex: 1; padding: 9px 14px; border-radius: 999px; background: #fff; color: #A2949A; font-size: 13.5px; border: 1px solid rgba(58, 34, 54, .1); }
.falso-enviar { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--ciruela); color: var(--champan); font-weight: 700; }
.sello-movil { margin: 12px 0 0; text-align: center; font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--apagado); }

/* Mandos */
.mandos { width: min(360px, 100%); display: flex; align-items: center; gap: 10px; }
.boton { font: 600 14px/1 var(--sans); color: var(--texto); background: rgba(35, 27, 39, .8); border: 1px solid var(--linea-2); border-radius: 999px; padding: 11px 16px; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; min-height: 44px; transition: border-color .2s, background-color .2s, transform .2s; text-decoration: none; }
.boton:hover { border-color: var(--champan); }
.boton:active { transform: scale(.97); }
.boton .b-ico { font-size: 11px; color: var(--champan); letter-spacing: -.1em; }
.boton.oro { background: linear-gradient(135deg, #E8CB95, var(--champan-2)); color: #23170B; border-color: transparent; }
.boton.oro:hover { filter: brightness(1.06); }
.boton.fino { min-height: 38px; padding: 8px 14px; font-size: 13px; font-weight: 500; }
.boton.grande { padding: 16px 26px; font-size: 16px; }
.progreso { flex: 1; height: 2px; background: var(--linea-2); border-radius: 2px; overflow: hidden; }
.progreso i { display: block; height: 100%; background: var(--champan); transform-origin: left; transform: scaleX(0); }
.vuelta { font-family: var(--mono); font-size: 11px; color: var(--apagado); white-space: nowrap; }

.probar { width: min(360px, 100%); }
.probar label { display: block; font-size: 13.5px; color: var(--texto); margin-bottom: 8px; font-weight: 500; }
.probar-fila { display: flex; gap: 8px; }
.probar input { flex: 1; min-width: 0; min-height: 44px; padding: 10px 14px; border-radius: 999px; border: 1px solid var(--linea-2); background: rgba(18, 14, 20, .7); color: var(--marfil); font: 15px var(--sans); }
.probar input::placeholder { color: #8C7F84; }
.probar input:focus-visible { outline: 2px solid var(--champan); outline-offset: 1px; }
.nota { margin: 8px 0 0; font-size: 12.5px; color: var(--apagado); }

/* Panel */
.panel { position: relative; background: linear-gradient(180deg, rgba(35, 27, 39, .82), rgba(22, 17, 25, .88)); border: 1px solid var(--linea); border-radius: 28px; padding: clamp(20px, 3vw, 34px); box-shadow: 0 30px 80px -40px rgba(0, 0, 0, .8); backdrop-filter: blur(8px); min-width: 0; }
.panel-cab { display: flex; justify-content: space-between; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
.panel h2 { font-family: var(--serif); font-size: clamp(30px, 3.4vw, 42px); line-height: 1.05; color: var(--marfil); }
.panel h2 em { font-size: .6em; color: var(--apagado); }
.panel-nota { margin: 14px 0 0; color: var(--apagado); font-size: 14.5px; max-width: 620px; }
.guardado { min-height: 22px; margin: 8px 0 4px; font-family: var(--mono); font-size: 12px; color: var(--champan); opacity: 0; transition: opacity .4s; }
.guardado.ve { opacity: 1; }
.reglas { display: grid; gap: 14px; margin-top: 6px; }
.tarjeta { position: relative; border: 1px solid var(--linea); border-radius: 20px; padding: 18px; background: rgba(18, 14, 20, .55); }
.tarjeta::after { content: ""; position: absolute; inset: -1px; border-radius: 20px; border: 1px solid var(--champan); box-shadow: 0 0 0 4px rgba(221, 187, 130, .1), 0 0 34px -6px rgba(221, 187, 130, .45); opacity: 0; transition: opacity .5s; pointer-events: none; }
.tarjeta.en-uso::after { opacity: 1; }
.respaldo, .bandeja { margin-top: 14px; }
.t-cab { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.t-cab h3 { font-family: var(--serif); font-size: 24px; color: var(--marfil); line-height: 1.1; }
.etiqueta { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--champan); border: 1px solid var(--linea-2); padding: 4px 9px; border-radius: 999px; }
.en-uso .etiqueta.estado { background: var(--champan); color: #23170B; border-color: transparent; }
.interruptor { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--apagado); cursor: pointer; }
.interruptor input { appearance: none; -webkit-appearance: none; width: 38px; height: 22px; border-radius: 999px; background: #3A3038; position: relative; cursor: pointer; margin: 0; transition: background-color .25s; }
.interruptor input::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--marfil); transition: transform .25s; }
.interruptor input:checked { background: var(--champan-2); }
.interruptor input:checked::after { transform: translateX(16px); }
.campo { display: block; margin-top: 10px; }
.campo > span { display: block; font-size: 12px; font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--apagado); margin-bottom: 6px; }
.campo input, .campo textarea { width: 100%; border: 1px solid var(--linea-2); border-radius: 12px; background: rgba(10, 8, 11, .55); color: var(--marfil); font: 15px/1.5 var(--sans); padding: 10px 12px; resize: vertical; }
.campo input:focus-visible, .campo textarea:focus-visible { outline: 2px solid var(--champan); outline-offset: 1px; }
.tarjeta.apagada { opacity: .55; }
.contador { min-width: 28px; height: 28px; padding: 0 8px; border-radius: 999px; background: var(--ciruela-2); color: var(--marfil); display: grid; place-items: center; font: 600 13px var(--mono); }
.contador.late { animation: pulso .7s; }
@keyframes pulso { 40% { transform: scale(1.25); background: var(--champan-2); } }
.bandeja-lista { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.bandeja-lista li { display: flex; gap: 10px; align-items: baseline; padding: 10px 12px; border-radius: 12px; background: rgba(221, 187, 130, .08); border: 1px solid var(--linea); font-size: 14px; animation: entra .45s both; }
.bandeja-lista .tipo { flex: none; font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--champan); }
.bandeja-vacia { margin: 0; color: var(--apagado); font-size: 13.5px; }

/* Cómo sería */
.como { padding: 20px 0 90px; }
.como h2 { font-family: var(--serif); font-size: clamp(34px, 4.6vw, 58px); color: var(--marfil); line-height: 1.05; }
.pasos { list-style: none; padding: 0; margin: 36px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.pasos li { border-top: 1px solid var(--linea-2); padding-top: 18px; }
.pasos .num { font-family: var(--serif); font-style: italic; font-size: 30px; color: var(--champan); }
.pasos h3 { font-family: var(--serif); font-size: 26px; color: var(--marfil); margin: 6px 0 8px; }
.pasos p { margin: 0; color: var(--apagado); }
.cierre { margin: 40px 0 0; }

.pie { border-top: 1px solid var(--linea); padding: 28px 0 40px; font-size: 13.5px; color: var(--apagado); }
.pie p { margin: 0 0 8px; max-width: 900px; }

/* Móvil y tabletas */
@media (max-width: 980px) {
  .escenario { grid-template-columns: minmax(0, 1fr); }
  .lado-movil { position: static; }
  .hilo { display: none; }
  .pasos { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 480px) {
  .ancho { width: calc(100% - 28px); }
  .intro { margin-left: 14px; }
  .cab nav { gap: 14px; font-size: 13px; }
  .pantalla { height: 560px; border-radius: 34px; }
  .movil-marco { border-radius: 44px; padding: 9px; transform: none; }
  .movil-marco::after { border-radius: 44px; }
  .avisos li { font-size: 13px; }
  .msg { font-size: 14px; }
  .t-cab h3 { font-size: 22px; }
}

/* Etiqueta «Contestando» solo mientras la regla está en uso */
.etiqueta.estado { display: none; }
.en-uso .etiqueta.estado { display: inline-block; }

/* Movimiento reducido: todo quieto, la conversación entera a la vista */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .movil-marco, .movil:hover .movil-marco { transform: none; }
  .seda i { display: none; }
  .pantalla { height: auto; min-height: 560px; }
  .chat-lista { transform: none !important; }
}

/* Zonas táctiles de 24 px o más (WCAG 2.2, 2.5.8) */
.cab nav a, .pie a { display: inline-block; padding: 4px 0; min-height: 24px; }
.interruptor { min-height: 44px; }
.interruptor input { width: 42px; height: 24px; }
.interruptor input::after { width: 18px; height: 18px; }
.interruptor input:checked::after { transform: translateX(18px); }

/* Avisos: texto seguido (con flex, las negritas se separaban del resto) */
.avisos li { display: inline-block; }
.avisos .ico { margin-right: 6px; }

/* Escritorio con pantalla baja: el móvil y sus mandos caben siempre a la vista */
@media (min-width: 981px) {
  .pantalla { height: clamp(460px, calc(100vh - 190px), 640px); }
}