:root {
  --bg: #0B0B0C;
  --bg-2: #121214;
  --card: #18181B;
  --line: #26262B;
  --text: #F5F5F4;
  --muted: #A1A1AA;
  --lime: #C8FF1E;
  --lime-dim: rgba(200, 255, 30, .12);
  --violet: #8B5CF6;
  --radius: 18px;
  --wrap: 1160px;
  /* Plus Jakarta Sans para toda la marca: logo 800, títulos 700/800, textos 400/500, botones 600 */
  --font-head: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-head); font-weight: 700; margin: 0; letter-spacing: -0.02em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.center { text-align: center; }
.mt { margin-top: 48px; }
.hl { color: var(--lime); }
.muted { color: var(--muted); }
.tiny { font-size: 13px; color: var(--muted); margin-top: 14px; }

/* ── Botones ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 15px 26px;
  background: var(--lime); color: #0B0B0C;
  border: 0; border-radius: 999px;
  font: 600 15px/1 var(--font-head); letter-spacing: .06em; text-transform: uppercase;
  text-decoration: none; cursor: pointer;
  transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px rgba(200, 255, 30,.55); }
.btn:focus-visible, .chips button:focus-visible, .chat-options button:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }
.btn-sm { padding: 11px 18px; font-size: 13px; }
.btn-lg { padding: 19px 34px; font-size: 16px; }
.btn-ghost { background: transparent; color: var(--lime); box-shadow: inset 0 0 0 1.5px var(--lime); }
.btn-ghost:hover { background: var(--lime-dim); box-shadow: inset 0 0 0 1.5px var(--lime); }

/* ── Nav ── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px 24px;
  background: rgba(11,11,12,.78);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 800 18px var(--font-head); letter-spacing: .04em; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: 15px; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.nav-demo { color: var(--lime); }

/* ── Hero ── */
.hero { padding: 72px 0 96px; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 620px; height: 620px;
  background: radial-gradient(closest-side, rgba(139,92,246,.18), transparent);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.q-main { font-size: clamp(44px, 6.4vw, 84px); line-height: 1.04; font-weight: 800; letter-spacing: -0.03em; }
.q-seq { margin-top: 36px; display: grid; gap: 10px; }
.q-seq li {
  font: 500 clamp(20px, 2.2vw, 26px)/1.3 var(--font-head); color: var(--muted);
  opacity: 0; transform: translateY(12px);
  animation: rise .7s ease forwards;
}
.q-seq li:nth-child(1) { animation-delay: .9s; }
.q-seq li:nth-child(2) { animation-delay: 1.6s; }
.q-seq li:nth-child(3) { animation-delay: 2.3s; }
.q-seq li::before { content: "→ "; color: var(--lime); }
@keyframes rise { to { opacity: 1; transform: none; } }

/* Teléfono con mensajes acumulándose */
.phone {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 28px;
  padding: 18px; height: 520px; display: flex; flex-direction: column;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,.8);
}
.phone-top { display: flex; justify-content: space-between; align-items: center; padding: 4px 6px 14px; border-bottom: 1px solid var(--line); }
.phone-title { font: 600 14px var(--font-head); color: var(--muted); }
.badge { background: #FF4D4D; color: #fff; border-radius: 999px; padding: 4px 10px; font: 600 12px var(--font-head); }
.badge.bump { animation: bump .3s ease; }
@keyframes bump { 50% { transform: scale(1.15); } }
.phone-feed {
  flex: 1; overflow: hidden; display: flex; flex-direction: column-reverse; gap: 10px; padding-top: 14px;
  mask-image: linear-gradient(to top, #000 70%, transparent);
  -webkit-mask-image: linear-gradient(to top, #000 70%, transparent);
}
.msg {
  display: flex; gap: 10px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px;
  animation: pop .35s ease;
}
.msg-av { width: 34px; height: 34px; border-radius: 50%; flex: none; display: grid; place-items: center; font: 600 13px var(--font-head); color: #0B0B0C; }
.msg-body { min-width: 0; flex: 1; }
.msg-name { font: 600 13px var(--font-head); display: flex; justify-content: space-between; }
.msg-name time { color: #FF6B6B; font-weight: 500; font-size: 11px; }
.msg-text { font-size: 14px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@keyframes pop { from { opacity: 0; transform: translateY(-10px) scale(.97); } }

/* ── Costo ── */
.cost { padding: 120px 0; background: linear-gradient(var(--bg), var(--bg-2)); border-top: 1px solid var(--line); }
/* Pregunta "falsa": se lee primero y después se tacha → la verdadera pregunta */
.cost-ask { font: 700 clamp(32px, 4.4vw, 58px)/1.1 var(--font-head); letter-spacing: -0.02em; color: var(--text); margin: 0 0 28px; }
.cost-ask span { position: relative; display: inline-block; }
.cost-ask span::after {
  content: ""; position: absolute; left: -2%; right: -2%; top: 54%; height: .09em; border-radius: 99px;
  background: #FF6B6B; transform: scaleX(0); transform-origin: left; transition: transform .7s cubic-bezier(.6,0,.2,1) .9s;
}
.cost-ask.in span { color: rgba(245,245,244,.55); transition: color .5s ease 1.4s; }
.cost-ask.in span::after { transform: scaleX(1); }
.cost-lead {
  display: inline-flex; align-items: center; gap: 14px; margin-bottom: 20px;
  font: 600 14px var(--font-head); letter-spacing: .18em; text-transform: uppercase; color: var(--lime);
}
.cost-lead::before, .cost-lead::after { content: ""; width: 36px; height: 1px; background: currentColor; opacity: .6; }
.cost-big { font-size: clamp(40px, 6.2vw, 86px); line-height: 1.04; font-weight: 800; letter-spacing: -0.03em; text-transform: uppercase; max-width: 15ch; margin: 0 auto; }
.cost-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 48px auto 0; max-width: 820px; }
.cost-list li { padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 15px; }
.cost-list li::before { content: "✕ "; color: #FF6B6B; }
.cost-note { margin: 36px 0 56px; font: 500 22px var(--font-head); }
.signature { display: inline-flex; align-items: center; gap: 16px; text-align: left; margin-bottom: 36px; }
.signature strong { display: block; font: 800 30px var(--font-head); letter-spacing: .04em; }
.signature span { color: var(--lime); font: 500 13px var(--font-head); letter-spacing: .2em; text-transform: uppercase; white-space: nowrap; }
.cost .btn-lg, .closing .btn-lg { display: flex; width: fit-content; margin: 0 auto; }

/* ── Secciones genéricas ── */
.section { padding: 120px 0; }
.section.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.eyebrow { font: 600 13px var(--font-head); letter-spacing: .14em; text-transform: uppercase; color: var(--lime); margin-bottom: 16px; }
.h2 { font-size: clamp(34px, 4.4vw, 56px); line-height: 1.08; font-weight: 800; letter-spacing: -0.025em; margin-bottom: 24px; max-width: 20ch; }
.lead { font-size: 20px; color: var(--text); }
.punch { font: 700 clamp(22px, 2.4vw, 30px)/1.25 var(--font-head); margin-top: 28px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }

/* Flujo con checks */
.flow { position: relative; display: grid; gap: 14px; padding-left: 4px; }
.flow::before { content: ""; position: absolute; left: 21px; top: 22px; bottom: 22px; width: 2px; background: var(--line); }
.flow li {
  position: relative; display: flex; align-items: center; gap: 18px;
  padding: 14px 18px 14px 4px;
  font: 600 18px var(--font-head); text-transform: uppercase; letter-spacing: .03em; color: var(--muted);
  transition: color .4s;
}
.flow-dot {
  position: relative; z-index: 1; width: 36px; height: 36px; border-radius: 50%; flex: none;
  background: var(--bg); border: 2px solid var(--line);
  display: grid; place-items: center; transition: background .4s, border-color .4s;
}
.flow-dot::after { content: "✓"; color: #0B0B0C; font-size: 17px; font-weight: 700; opacity: 0; transform: scale(.4); transition: .3s .1s; }
.flow li.done { color: var(--text); }
.flow li.done .flow-dot { background: var(--lime); border-color: var(--lime); }
.flow li.done .flow-dot::after { opacity: 1; transform: none; }
.flow li:first-child .flow-dot::after { content: "↓"; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 56px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: border-color .25s, transform .25s; }
.card:hover { border-color: rgba(200, 255, 30,.5); transform: translateY(-3px); }
.card h3 { font-size: 22px; margin: 18px 0 10px; }
.card p { color: var(--muted); font-size: 16px; margin: 0; }
.card-ico { width: 46px; height: 46px; border-radius: 12px; background: var(--lime-dim); display: grid; place-items: center; }
.card-ico svg { width: 24px; height: 24px; fill: none; stroke: var(--lime); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card-accent { background: linear-gradient(140deg, rgba(139,92,246,.22), var(--card) 60%); border-color: rgba(139,92,246,.45); }
.card-accent .card-ico { background: rgba(139,92,246,.2); }
.card-accent .card-ico svg { stroke: #B79CFF; }

/* Checklist */
.checklist { display: grid; gap: 10px; margin: 8px 0 24px; }
.checklist li { padding-left: 30px; position: relative; color: var(--muted); font-size: 18px; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--lime); font-weight: 700; }

/* Pasos */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 56px; counter-reset: s; }
.steps li { border-top: 2px solid var(--lime); padding-top: 22px; }
.step-n { font: 700 15px var(--font-head); color: var(--lime); letter-spacing: .1em; }
.steps h3 { font-size: 24px; margin: 10px 0 10px; text-transform: uppercase; }
.steps p { color: var(--muted); font-size: 16px; }
.model {
  margin-top: 56px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 28px 32px; border: 1px dashed rgba(200, 255, 30,.4); border-radius: var(--radius);
}
.model strong { display: block; font: 600 20px var(--font-head); margin-bottom: 4px; }
.model span { color: var(--muted); }

/* Rubros */
.rubros { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 56px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.rubro { background: var(--bg); padding: 32px; transition: background .25s; }
.rubro:hover { background: var(--bg-2); }
.rubro h3 { font-size: 22px; margin-bottom: 10px; }
.rubro p { color: var(--muted); margin: 0; font-size: 16px; }
.rubro-otro { text-decoration: none; background: linear-gradient(140deg, rgba(139,92,246,.22), var(--bg) 70%); display: flex; flex-direction: column; }
.rubro-otro h3 { color: var(--lime); }
.rubro-link { margin-top: auto; padding-top: 16px; color: var(--lime); font: 600 15px var(--font-head); }
.integ-lead { max-width: 60ch; color: var(--muted); }
.integ { margin-top: 40px; }
.integ-note { margin-top: 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 24px 28px; border: 1px dashed rgba(200,255,30,.4); border-radius: var(--radius); }
.integ-note p { margin: 0; font-size: 19px; }
.rubro-cta { margin-top: 32px; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.rubro-cta p { margin: 0; font-size: 19px; }

/* Tachado de tareas */
.strike { display: grid; gap: 12px; margin: 12px 0 24px; }
.strike li { position: relative; width: fit-content; font-size: 19px; color: var(--muted); }
.strike li::after {
  content: ""; position: absolute; left: -2px; right: -2px; top: 54%; height: 2px; background: #FF6B6B;
  transform: scaleX(0); transform-origin: left; transition: transform .5s ease;
}
.strike.go li::after { transform: scaleX(1); }
.strike.go li:nth-child(2)::after { transition-delay: .25s; }
.strike.go li:nth-child(3)::after { transition-delay: .5s; }
.strike.go li:nth-child(4)::after { transition-delay: .75s; }
.strike.go li:nth-child(5)::after { transition-delay: 1s; }
.team { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; }
.pills { display: flex; flex-wrap: wrap; gap: 10px; }
.pills li { padding: 10px 18px; border-radius: 999px; background: var(--lime-dim); color: var(--lime); font: 600 16px var(--font-head); }

/* ── Diagnóstico + chat ── */
.diag { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.chips { border: 0; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips legend { font: 600 16px var(--font-head); margin-bottom: 12px; padding: 0; }
.chips button {
  padding: 10px 16px; border-radius: 999px; cursor: pointer;
  background: transparent; color: var(--text); border: 1px solid var(--line);
  font-size: 15px; transition: .2s;
}
.chips button:hover { border-color: var(--muted); }
.chips button[aria-pressed="true"] { background: var(--lime); color: #0B0B0C; border-color: var(--lime); font-weight: 600; }
#diag-start { margin-top: 36px; }

.chat {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 24px;
  height: 640px; display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 40px 80px -40px rgba(0,0,0,.9);
  position: sticky; top: 96px;
}
.chat.focus { border-color: rgba(200, 255, 30,.6); }
.chat-head { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.chat-head strong { display: block; font-family: var(--font-head); }
.chat-status { font-size: 13px; color: var(--lime); }
.chat-body { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 10px; scroll-behavior: smooth; }
.chat-placeholder { margin: auto; text-align: center; color: var(--muted); max-width: 300px; }
.bubble { max-width: 82%; padding: 11px 15px; border-radius: 18px; font-size: 15.5px; line-height: 1.45; animation: pop .3s ease; white-space: pre-line; }
.bubble.bot { background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 6px; align-self: flex-start; }
.bubble.user { background: var(--lime); color: #0B0B0C; border-bottom-right-radius: 6px; align-self: flex-end; font-weight: 500; }
.bubble.summary { background: transparent; border: 1px dashed rgba(200, 255, 30,.5); }
.bubble.summary b { color: var(--lime); font-weight: 600; }
.typing { display: inline-flex; gap: 4px; padding: 14px 16px; }
.typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .2s; }
.typing i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; } 30% { opacity: 1; } }
.chat-options { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 20px; }
.chat-options:not(:empty) { padding-bottom: 14px; }
.chat-options button {
  padding: 9px 14px; border-radius: 999px; cursor: pointer;
  background: transparent; color: var(--lime); border: 1px solid rgba(200, 255, 30,.5);
  font-size: 14px; transition: .2s;
}
.chat-options button:hover { background: var(--lime-dim); }
.chat-options .btn { color: #0B0B0C; border: 0; }
.chat-input { display: flex; gap: 8px; padding: 14px; border-top: 1px solid var(--line); }
.chat-input input {
  flex: 1; min-width: 0; background: var(--card); border: 1px solid var(--line); border-radius: 999px;
  padding: 12px 18px; color: var(--text); font: inherit; font-size: 15px; outline: none;
}
.chat-input input:focus { border-color: var(--lime); }
.chat-input button { width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--lime); cursor: pointer; display: grid; place-items: center; flex: none; }
.chat-input button svg { width: 20px; height: 20px; fill: #0B0B0C; }

.chat-legal { margin: 0; padding: 0 16px 12px; font-size: 12px; color: var(--muted); text-align: center; }

/* ── Cierre ── */
.closing { padding: 140px 0; background: radial-gradient(ellipse at 50% 0%, rgba(200, 255, 30,.08), transparent 60%); }
.closing .h2 { margin-left: auto; margin-right: auto; }
.closing-list { font: 500 clamp(18px, 2.2vw, 26px) var(--font-head); color: var(--lime); letter-spacing: .02em; }
.closing .punch { margin: 32px 0 56px; }

/* ── Footer ── */
.footer { border-top: 1px solid var(--line); padding: 32px 0 100px; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer p { margin: 0; }

/* ── Botón flotante ── */
.fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  display: flex; align-items: center; gap: 10px;
  padding: 8px 18px 8px 8px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line); text-decoration: none;
  font: 600 14px var(--font-head);
  box-shadow: 0 16px 40px -10px rgba(0,0,0,.8);
  transition: transform .25s, opacity .25s, border-color .25s;
}
.fab img { border-radius: 8px; }
.fab:hover { border-color: var(--lime); transform: translateY(-2px); }
.fab.hide { opacity: 0; pointer-events: none; transform: translateY(20px); }

/* ── Reveal on scroll ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ── Responsive ── */
@media (max-width: 960px) {
  .hero-grid, .split, .diag { grid-template-columns: 1fr; gap: 48px; }
  .phone { height: 380px; }
  .cards, .rubros { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 32px 18px; }
  .chat { position: relative; top: 0; height: 600px; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .nav { padding: 12px 16px; }
  .hero { padding: 48px 0 72px; }
  .section, .cost { padding: 88px 0; }
  .closing { padding: 100px 0; }
  .cards, .rubros, .steps { grid-template-columns: 1fr; }
  .model { flex-direction: column; align-items: flex-start; padding: 24px; }
  .team { padding: 28px; }
  .chat { height: 560px; border-radius: 20px; }
  .bubble { max-width: 90%; }
  .fab span { display: none; }
  .fab { padding: 8px; }
  .btn-lg { padding: 17px 22px; font-size: 14px; }
  .signature strong { font-size: 26px; }
  .cost-lead { font-size: 12px; letter-spacing: .14em; gap: 10px; }
  .cost-lead::before, .cost-lead::after { width: 20px; }
  .signature span { font-size: 11px; letter-spacing: .14em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .reveal, .q-seq li { opacity: 1; transform: none; }
}

/* ───────── Efectos al scrollear ───────── */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%; z-index: 100;
  background: linear-gradient(90deg, #0FC21A, var(--lime));
  transform-origin: left; transform: scaleX(0);
}
/* Títulos palabra por palabra */
.split-words .w { display: inline-block; opacity: 0; transform: translateY(.45em); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1); transition-delay: calc(var(--wi) * 55ms); }
.split-words.in .w { opacity: 1; transform: none; }
/* Cascada para grupos de tarjetas */
.stagger > * { opacity: 0; transform: translateY(28px) scale(.98); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1), border-color .25s; transition-delay: calc(var(--si) * 90ms); }
.stagger.in > * { opacity: 1; transform: none; }
.stagger.done > * { transition-delay: 0s; }
.stagger.done > .card:hover { transform: translateY(-3px); }
/* Entradas laterales */
.from-left { opacity: 0; transform: translateX(-40px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.from-right { opacity: 0; transform: translateX(40px); transition: opacity .8s ease .1s, transform .8s cubic-bezier(.2,.7,.2,1) .1s; }
.from-left.in, .from-right.in { opacity: 1; transform: none; }
/* Parallax (lo mueve el JS con --py) */
.parallax { transform: translate3d(0, var(--py, 0px), 0); will-change: transform; }

@media (prefers-reduced-motion: reduce) {
  .scroll-progress { display: none; }
  .split-words .w, .stagger > *, .from-left, .from-right { opacity: 1 !important; transform: none !important; }
  .parallax { transform: none !important; }
}

/* ───────── Demo por rubro ───────── */
.demo-lead { color: var(--muted); max-width: 60ch; }
.demo { display: grid; grid-template-columns: 1fr 420px; gap: 48px; margin-top: 40px; align-items: start; }
.demo-rubros { display: flex; flex-wrap: wrap; gap: 8px; }
.demo-rubros button {
  padding: 10px 16px; border-radius: 999px; cursor: pointer; font-size: 15px;
  background: transparent; color: var(--text); border: 1px solid var(--line); transition: .2s;
}
.demo-rubros button:hover { border-color: var(--muted); }
.demo-rubros button[aria-selected="true"] { background: var(--lime); color: #0B0B0C; border-color: var(--lime); font-weight: 600; }
.demo-casos { display: grid; gap: 10px; margin: 28px 0 18px; }
.demo-casos button {
  display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; cursor: pointer;
  padding: 16px 18px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); color: var(--text);
  transition: border-color .2s, transform .2s;
}
.demo-casos button:hover { border-color: var(--muted); transform: translateX(4px); }
.demo-casos button[aria-pressed="true"] { border-color: var(--lime); background: var(--lime-dim); }
.demo-casos .n { flex: none; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--bg); border: 1px solid var(--line); font: 700 14px var(--font-head); color: var(--lime); }
.demo-casos strong { display: block; font: 600 17px var(--font-head); }
.demo-casos span.d { color: var(--muted); font-size: 14px; }
.demo-phone { background: var(--bg); border: 1px solid var(--line); border-radius: 28px; overflow: hidden; display: flex; flex-direction: column; height: 560px; box-shadow: 0 40px 80px -40px rgba(0,0,0,.9); position: sticky; top: 96px; }
.demo-head { display: flex; align-items: center; gap: 12px; padding: 14px 18px; background: var(--card); border-bottom: 1px solid var(--line); }
.demo-head strong { display: block; font: 600 16px var(--font-head); }
.demo-status { font-size: 12px; color: #25D366; }
.demo-av { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: var(--lime); color: #0B0B0C; font: 800 16px var(--font-head); }
.demo-body { flex: 1; overflow-y: auto; padding: 18px 14px; display: flex; flex-direction: column; gap: 8px; scroll-behavior: smooth;
  background: radial-gradient(circle at 20% 10%, rgba(139,92,246,.08), transparent 50%), var(--bg-2); }
.demo-msg { max-width: 82%; padding: 9px 13px 18px; border-radius: 16px; font-size: 15px; line-height: 1.4; position: relative; animation: pop .3s ease; white-space: pre-line; }
.demo-msg time { position: absolute; right: 10px; bottom: 4px; font-size: 10px; color: var(--muted); }
.demo-msg.cli { align-self: flex-end; background: #144D37; border-bottom-right-radius: 4px; }
.demo-msg.bot { align-self: flex-start; background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.demo-msg.adj { display: flex; align-items: center; gap: 8px; }
.demo-msg.adj::before { content: ""; width: 26px; height: 32px; border-radius: 4px; background: #FF6B6B; flex: none; }
.demo-accion { align-self: center; display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px; background: var(--lime-dim); color: var(--lime); font: 600 13px var(--font-head); animation: pop .35s ease; margin: 4px 0; }
.demo-accion::before { content: "✓"; display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--lime); color: #0B0B0C; font-size: 11px; }
.demo-typing { align-self: flex-start; display: inline-flex; gap: 4px; padding: 12px 14px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; }
.demo-typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); animation: blink 1.2s infinite; }
.demo-typing i:nth-child(2) { animation-delay: .2s; } .demo-typing i:nth-child(3) { animation-delay: .4s; }
.demo-replay { border: 0; background: var(--card); color: var(--muted); padding: 12px; cursor: pointer; border-top: 1px solid var(--line); font-size: 14px; }
.demo-replay:hover { color: var(--text); }
.rubro[data-demo] { cursor: pointer; }
.rubro[data-demo]:hover h3 { color: var(--lime); }
@media (max-width: 960px) {
  .demo { grid-template-columns: 1fr; gap: 28px; }
  .demo-phone { position: relative; top: 0; height: 520px; }
}

/* Pregunta grande que se ilumina con el scroll */
.cost-big .w { transition: opacity .25s linear, color .25s linear; }