/* Escudero (promtdea.ai/asistente): misma marca que la portada (violeta Promtdea, punto lima, modo oscuro por defecto con tema.js).
   Una idea por pantalla, tipografía grande, el celular como protagonista. El simulador y el kit son la parte interactiva. */
:root {
  --bg: #0B0A11; --bg-2: #100E18; --surface: #15131F; --surface-2: #1C1929; --surface-3: #242036; --line: #2A2639; --line-2: #383250;
  --fg: #F3F1F9; --muted: #A9A4BC; --accent: #A78BFA; --accent-solid: #6D28D9; --accent-soft: rgba(167, 139, 250, .14); --on-accent: #FFFFFF;
  --lime: #C6FF3D; --on-lime: #16200A; --lime-soft: rgba(198, 255, 61, .12); --warn: #F5C451; --ok: #7EE2A8; --bad: #FF8A8A;
  --chat-bg: #0F0D17; --bur-ent: #221E33; --bur-sal: #5B21B6; --bur-sal-fg: #FFFFFF;
  --sombra: 0 30px 80px -30px rgba(0, 0, 0, .7), 0 0 0 1px rgba(255, 255, 255, .04);
  --display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --body: "Inter", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #FBFAFD; --bg-2: #F4F2FA; --surface: #FFFFFF; --surface-2: #F3F1F9; --surface-3: #EAE6F5; --line: #E3DFEE; --line-2: #D3CCE6;
  --fg: #15121E; --muted: #5B566C; --accent: #6D28D9; --accent-solid: #6D28D9; --accent-soft: rgba(109, 40, 217, .09); --on-accent: #FFFFFF;
  --lime: #C6FF3D; --on-lime: #16200A; --lime-soft: rgba(132, 190, 0, .14); --warn: #8A5A00; --ok: #0F7A43; --bad: #B42318;
  --chat-bg: #F1EEF8; --bur-ent: #FFFFFF; --bur-sal: #6D28D9; --bur-sal-fg: #FFFFFF;
  --sombra: 0 30px 70px -34px rgba(40, 20, 80, .35), 0 0 0 1px rgba(20, 10, 40, .05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { color-scheme: dark; } }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { background: var(--bg); color: var(--fg); font: 400 16px/1.6 var(--body); margin: 0; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
.wrap { max-width: 1180px; margin: 0 auto; padding-inline: 20px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.04; letter-spacing: -.025em; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.6rem, 6.4vw, 5.1rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 4vw, 3.2rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0; }
a { color: var(--accent); }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--muted); max-width: 64ch; line-height: 1.6; }
.etq { font: 500 .76rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); display: inline-flex; align-items: center; gap: 8px; }
.etq .punto { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 4px var(--lime-soft); }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; border-radius: 8px; }
.saltar { position: absolute; left: -999px; top: 8px; background: var(--lime); color: var(--on-lime); padding: 10px 14px; border-radius: 10px; z-index: 20; }
.saltar:focus { left: 12px; }
section { padding-block: clamp(64px, 9vw, 120px); position: relative; }
.cab { display: grid; gap: 16px; margin-bottom: clamp(32px, 5vw, 56px); max-width: 780px; }
.nota { font-size: .84rem; color: var(--muted); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 999px; font: 600 .98rem/1 var(--body); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .3s var(--ease), background .2s, border-color .2s, box-shadow .3s; }
.btn:hover { transform: translateY(-2px); }
.btn.prim { background: var(--accent-solid); color: var(--on-accent); box-shadow: 0 12px 30px -12px rgba(109, 40, 217, .8); }
.btn.sec { border-color: var(--line-2); color: var(--fg); background: transparent; }
.btn.lima { background: var(--lime); color: var(--on-lime); }
.btn.mini { min-height: 44px; padding: 0 16px; font-size: .88rem; border-color: var(--line-2); background: var(--surface-2); color: var(--fg); border-radius: 12px; }
.btn.mini.lima { background: var(--lime); color: var(--on-lime); border-color: transparent; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* cabecera */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 20px; min-height: 64px; }
.marca { display: inline-flex; color: var(--fg); }
.wordmark { display: block; overflow: visible; }
.wordmark text { font-family: Jost, var(--display); font-weight: 600; font-size: 54px; fill: currentColor; }
.wordmark .pd { fill: none; stroke: #fff; stroke-width: 7; stroke-linecap: round; }
.wordmark .dot { fill: #C6FF3D; }
:root[data-theme="light"] .wordmark .pd { stroke: #6D28D9; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--muted); text-decoration: none; font-size: .92rem; font-weight: 500; }
.nav a:hover { color: var(--fg); }
.herr { display: flex; gap: 10px; align-items: center; }
.idioma { display: inline-flex; border: 1px solid var(--line-2); border-radius: 999px; padding: 3px; }
.idioma button { min-width: 40px; min-height: 36px; border: 0; background: transparent; color: var(--muted); font: 600 .78rem var(--mono); border-radius: 999px; cursor: pointer; }
.idioma button[aria-pressed="true"] { background: var(--surface-3); color: var(--fg); }
.tema { min-height: 44px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-2); background: transparent; color: var(--fg); font: 500 .85rem var(--body); cursor: pointer; }

/* héroe */
.hero { padding-top: clamp(40px, 7vw, 88px); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto auto; width: 70vw; height: 70vw; max-width: 900px; max-height: 900px; background: radial-gradient(closest-side, rgba(109, 40, 217, .35), transparent 70%); pointer-events: none; }
.hero::after { content: ""; position: absolute; left: -15%; bottom: -30%; width: 50vw; height: 50vw; max-width: 640px; max-height: 640px; background: radial-gradient(closest-side, rgba(198, 255, 61, .09), transparent 70%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 6vw, 80px); align-items: center; position: relative; z-index: 1; }
.hero-grid > * { min-width: 0; }
.hero-txt { display: grid; gap: 22px; }
.grad { background: linear-gradient(100deg, var(--accent) 0%, #E9D5FF 45%, var(--lime) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
:root[data-theme="light"] .grad { background: linear-gradient(100deg, #6D28D9 0%, #9333EA 55%, #4D7C0F 100%); -webkit-background-clip: text; background-clip: text; }
.descriptor { font: 500 1.02rem/1.45 var(--display); color: var(--fg); opacity: .92; border-left: 3px solid var(--lime); padding-left: 14px; }
.ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.sellos { list-style: none; padding: 0; margin: 6px 0 0; display: grid; grid-template-columns: repeat(3, auto); justify-content: start; gap: 32px; }
.sellos li { display: grid; gap: 2px; }
.sellos b { font: 700 1.5rem/1 var(--display); letter-spacing: -.02em; }
.sellos span { font-size: .82rem; color: var(--muted); }

/* teléfono */
.tel { position: relative; width: 100%; max-width: 360px; margin-inline: auto; border-radius: 46px; padding: 12px; background: linear-gradient(160deg, #2B2740, #121019 60%); box-shadow: var(--sombra), inset 0 0 0 1px rgba(255, 255, 255, .08); }
:root[data-theme="light"] .tel { background: linear-gradient(160deg, #2B2740, #17141F 60%); }
.tel::after { content: ""; position: absolute; inset: 12px; border-radius: 36px; pointer-events: none; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .05); }
.tel-isla { position: absolute; top: 22px; left: 50%; transform: translateX(-50%); width: 92px; height: 26px; border-radius: 20px; background: #000; z-index: 4; }
.tel-barra { position: absolute; top: 24px; left: 34px; right: 34px; display: flex; justify-content: space-between; font: 600 .74rem var(--body); color: #fff; z-index: 3; }
.chat-cab { display: flex; align-items: center; gap: 10px; padding: 52px 16px 12px; background: #17141F; border-radius: 34px 34px 0 0; color: #fff; border-bottom: 1px solid rgba(255, 255, 255, .06); }
.av { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(140deg, #6D28D9, #A78BFA); font-size: 1.1rem; box-shadow: 0 0 0 2px rgba(198, 255, 61, .55); }
.cab-t { display: grid; line-height: 1.2; }
.cab-t b { font: 600 .98rem var(--display); }
.cab-t small { font-size: .74rem; color: #B9B3CC; }
.chat-cuerpo { background: var(--chat-bg); background-image: radial-gradient(rgba(167, 139, 250, .08) 1px, transparent 1px); background-size: 18px 18px; padding: 14px 12px; display: flex; flex-direction: column; gap: 8px; overflow-y: auto; border-radius: 0 0 34px 34px; }
.hero-chat { height: 500px; overflow: hidden; justify-content: flex-end; gap: 0; }
.hero-chat .bur { margin-top: 8px; }
.bur { max-width: 86%; padding: 9px 12px 18px; border-radius: 16px; font-size: .86rem; line-height: 1.42; position: relative; display: grid; gap: 2px; word-wrap: break-word; overflow-wrap: anywhere; box-shadow: 0 1px 0 rgba(0, 0, 0, .15); }
.bur i { position: absolute; right: 10px; bottom: 4px; font-style: normal; font-size: .66rem; opacity: .65; }
.bur.ent { align-self: flex-start; background: var(--bur-ent); color: var(--fg); border-top-left-radius: 4px; }
.bur.sal { align-self: flex-end; background: var(--bur-sal); color: var(--bur-sal-fg); border-top-right-radius: 4px; }
.bur.rec { border: 1px solid rgba(198, 255, 61, .55); box-shadow: 0 0 0 4px rgba(198, 255, 61, .08); }
.bur b { font-weight: 700; }
.bur.escribiendo { padding: 12px 14px; }
.bur.escribiendo span { display: inline-flex; gap: 4px; }
.bur.escribiendo span i { position: static; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .5; animation: punto 1s infinite; }
.bur.escribiendo span i:nth-child(2) { animation-delay: .15s; } .bur.escribiendo span i:nth-child(3) { animation-delay: .3s; }
@keyframes punto { 50% { opacity: 1; transform: translateY(-2px); } }
.dia { align-self: center; font: 500 .7rem var(--mono); color: var(--muted); background: var(--surface-2); padding: 4px 10px; border-radius: 999px; text-transform: uppercase; letter-spacing: .08em; }

/* notificación que baja (recordatorio) */
.noti { position: absolute; top: 58px; left: 22px; right: 22px; z-index: 5; display: flex; gap: 10px; align-items: center; padding: 10px 12px; border-radius: 18px; background: rgba(40, 36, 58, .82); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); color: #fff; box-shadow: 0 16px 40px -12px rgba(0, 0, 0, .6); transform: translateY(-140%); opacity: 0; transition: transform .6s var(--ease), opacity .4s; pointer-events: none; }
.noti.ver { transform: none; opacity: 1; }
.noti-ic { width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(140deg, #6D28D9, #A78BFA); display: grid; place-items: center; flex: none; }
.noti-t { display: grid; font-size: .8rem; line-height: 1.3; }
.noti-t b { font-size: .82rem; }

/* animación del héroe */
.hero-chat .bur { opacity: 0; max-height: 0; margin-top: 0; padding-block: 0; transform: translateY(12px) scale(.98); animation: entra .7s var(--ease) forwards; }
.hero-chat .a1 { animation-delay: .5s; } .hero-chat .a2 { animation-delay: 1.9s; } .hero-chat .a3 { animation-delay: 3s; } .hero-chat .a4 { animation-delay: 4.4s; } .hero-chat .a5 { animation-delay: 5.5s; }
.tel-hero .noti { animation: noti 4.2s var(--ease) 7.2s forwards; }
@keyframes entra { 40% { max-height: 260px; margin-top: 8px; padding-block: 9px 18px; } to { opacity: 1; transform: none; max-height: 260px; margin-top: 8px; padding-block: 9px 18px; } }
@keyframes noti { 0% { transform: translateY(-140%); opacity: 0; } 12%, 80% { transform: none; opacity: 1; } 100% { transform: translateY(-140%); opacity: 0; } }

/* tres */
.tres { border-top: 1px solid var(--line); }
.tres-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.t-card { background: var(--surface); border: 1px solid var(--line); border-radius: 26px; padding: 30px 26px; display: grid; gap: 12px; align-content: start; transition: transform .4s var(--ease), border-color .3s; }
.t-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.t-card p { color: var(--muted); font-size: .96rem; }
.t-ic { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; font-size: 1.5rem; background: var(--accent-soft); }
.t-card:nth-child(2) .t-ic { background: var(--lime-soft); }

/* simulador */
.sim-sec { background: linear-gradient(180deg, var(--bg-2), var(--bg)); border-top: 1px solid var(--line); }
.sim { display: grid; grid-template-columns: 400px 1fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
.sim > * { min-width: 0; }
.tel-sim { max-width: 390px; }
.tel-sim .chat-cuerpo { height: 470px; border-radius: 0; scroll-behavior: smooth; }
.chips { display: flex; gap: 6px; overflow-x: auto; padding: 8px 10px; background: var(--chat-bg); scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip { flex: none; min-height: 34px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--surface); color: var(--fg); font: 500 .76rem var(--body); cursor: pointer; white-space: nowrap; }
.chip:hover { border-color: var(--accent); }
.chat-pie { display: flex; gap: 8px; padding: 10px; background: #17141F; border-radius: 0 0 34px 34px; }
.chat-pie input { flex: 1; min-width: 0; min-height: 44px; border-radius: 999px; border: 1px solid #2E2944; background: #0F0D17; color: #fff; padding: 0 16px; font: 400 .92rem var(--body); }
.enviar { width: 44px; height: 44px; flex: none; border-radius: 50%; border: 0; background: var(--lime); color: var(--on-lime); display: grid; place-items: center; cursor: pointer; }
.enviar svg { width: 20px; height: 20px; fill: currentColor; }
.sim-panel { display: grid; gap: 16px; }
.reloj-caja { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 20px; display: grid; gap: 14px; }
.reloj { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.reloj-et { font: 500 .72rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); width: 100%; }
.reloj b { font: 700 2.6rem/1 var(--display); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.reloj-f { color: var(--muted); font-size: .92rem; }
.reloj-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.entendio { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 18px 20px; display: grid; gap: 10px; }
.ent-cuerpo { display: grid; gap: 8px; font-size: .9rem; }
.ent-cuerpo .vacio { color: var(--muted); }
.ent-fila { display: grid; grid-template-columns: 110px 1fr; gap: 10px; align-items: baseline; }
.ent-fila span { font: 500 .72rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.ent-fila b { font-weight: 600; }
.ent-tipo { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font: 600 .78rem var(--body); }
.ent-pie { font-size: .76rem; color: var(--muted); font-family: var(--mono); }
.pestanas { display: flex; gap: 6px; flex-wrap: wrap; }
.pestanas button { min-height: 44px; padding: 0 14px; border-radius: 12px; border: 1px solid var(--line); background: transparent; color: var(--muted); font: 500 .86rem var(--body); cursor: pointer; }
.pestanas button[aria-selected="true"] { background: var(--surface-2); color: var(--fg); border-color: var(--line-2); }
.tab-cuerpo { background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 8px; min-height: 240px; }
.fila { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 12px; border-radius: 14px; }
.fila + .fila { border-top: 1px solid var(--line); border-radius: 0; }
.fila .ic { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--surface-2); font-size: .95rem; }
.fila .t { display: grid; min-width: 0; }
.fila .t b { font-weight: 600; font-size: .92rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fila .t small { color: var(--muted); font-size: .8rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fila .m { font: 500 .74rem var(--mono); color: var(--muted); text-align: right; }
.fila.imp .ic { background: var(--lime-soft); }
.fila.hecha .t b { text-decoration: line-through; opacity: .5; }
.marca-imp { font: 600 .66rem var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--on-lime); background: var(--lime); padding: 2px 7px; border-radius: 999px; }
.vacia { padding: 28px; text-align: center; color: var(--muted); font-size: .9rem; }

/* cómo funciona */
.como { border-top: 1px solid var(--line); }
.diagrama { display: grid; grid-template-columns: 1fr 60px 1.1fr 60px 1fr; align-items: center; gap: 0; padding: clamp(20px, 4vw, 40px); background: var(--surface); border: 1px solid var(--line); border-radius: 32px; }
.d-col { display: grid; gap: 10px; }
.d-nodo { display: grid; grid-template-columns: 34px 1fr; column-gap: 10px; align-items: center; padding: 12px 14px; border-radius: 16px; background: var(--surface-2); border: 1px solid var(--line); font-weight: 600; font-size: .95rem; }
.d-nodo span { grid-row: span 2; font-size: 1.3rem; }
.d-nodo small { font-weight: 400; color: var(--muted); font-size: .76rem; }
.d-nodo.canal { border-color: rgba(198, 255, 61, .35); }
.d-flecha { height: 2px; background: linear-gradient(90deg, transparent, var(--accent), transparent); position: relative; overflow: hidden; }
.d-flecha::after { content: ""; position: absolute; top: -2px; left: -30%; width: 30%; height: 6px; border-radius: 3px; background: var(--lime); animation: fluye 2.4s linear infinite; }
@keyframes fluye { to { left: 100%; } }
.d-cerebro { display: grid; gap: 6px; justify-items: center; text-align: center; padding: 26px 18px; border-radius: 26px; background: radial-gradient(120% 100% at 50% 0%, rgba(109, 40, 217, .35), var(--surface-2)); border: 1px solid var(--line-2); }
.d-escudo { font-size: 2.2rem; }
.d-cerebro b { font: 700 1.3rem var(--display); }
.d-cerebro small { color: var(--muted); font-size: .8rem; }
.d-cerebro ul { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 4px; font-size: .84rem; }
.d-cerebro li::before { content: "✓ "; color: var(--lime); }
.priv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 22px; }
.priv div { display: grid; gap: 6px; padding: 20px 22px; border-radius: 22px; border: 1px solid var(--line); }
.priv span { color: var(--muted); font-size: .92rem; }

/* kit */
.kit-sec { background: linear-gradient(180deg, var(--bg), var(--bg-2)); border-top: 1px solid var(--line); }
.kit { display: grid; grid-template-columns: 400px 1fr; gap: clamp(20px, 3vw, 36px); align-items: start; }
.kit > * { min-width: 0; }
.kit-form { display: grid; gap: 14px; }
fieldset { margin: 0; border: 1px solid var(--line); border-radius: 22px; padding: 18px; display: grid; gap: 12px; background: var(--surface); }
legend { font: 600 .95rem var(--display); padding: 0 6px; }
label { display: grid; gap: 6px; font-size: .84rem; color: var(--muted); font-weight: 500; }
input:not([type="radio"]):not([type="checkbox"]), select { min-height: 44px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--bg); color: var(--fg); padding: 0 12px; font: 400 .95rem var(--body); width: 100%; }
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.dos { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.dos > * { min-width: 0; }
.seg { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.seg-t { font-size: .84rem; color: var(--muted); font-weight: 500; margin-right: 6px; min-width: 52px; }
.seg label { display: inline-flex; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label span { min-height: 40px; display: inline-flex; align-items: center; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--fg); cursor: pointer; font-size: .86rem; }
.seg input:checked + span { background: var(--accent-solid); border-color: var(--accent-solid); color: #fff; }
.seg input:focus-visible + span { outline: 2px solid var(--lime); outline-offset: 2px; }
.checks { display: grid; gap: 8px; }
.chk { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; color: var(--fg); padding: 10px 12px; border-radius: 14px; border: 1px solid var(--line); cursor: pointer; }
.chk input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: #6D28D9; }
.chk span { display: grid; font-weight: 600; font-size: .92rem; }
.chk small { font-weight: 400; color: var(--muted); font-size: .78rem; }
.ayuda { font-size: .78rem; color: var(--muted); }
.kit-out { background: var(--surface); border: 1px solid var(--line); border-radius: 26px; overflow: hidden; position: sticky; top: 84px; }
.kit-pestanas { display: flex; gap: 2px; padding: 8px; overflow-x: auto; border-bottom: 1px solid var(--line); background: var(--surface-2); scrollbar-width: thin; }
.kit-pestanas button { flex: none; min-height: 40px; padding: 0 14px; border-radius: 10px; border: 0; background: transparent; color: var(--muted); font: 500 .84rem var(--mono); cursor: pointer; }
.kit-pestanas button[aria-selected="true"] { background: var(--bg); color: var(--fg); box-shadow: 0 0 0 1px var(--line-2); }
.kit-cuerpo { padding: 18px; display: grid; gap: 14px; }
.kit-acc { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.kit-meta { font: 500 .76rem var(--mono); color: var(--muted); margin-left: auto; }
.codigo { margin: 0; max-height: 470px; overflow: auto; padding: 16px; border-radius: 16px; background: #0A0910; color: #E6E1F5; font: 400 .76rem/1.6 var(--mono); border: 1px solid #221E33; tab-size: 2; }
.codigo .c { color: #8C86A3; } .codigo .s { color: #C6FF3D; } .codigo .k { color: #C4B5FD; }
.pasos-kit { margin: 0; padding-left: 20px; display: grid; gap: 8px; font-size: .92rem; }
.prop { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--line); background: var(--bg); }
.prop code { font: 600 .82rem var(--mono); color: var(--lime); }
:root[data-theme="light"] .prop code { color: #4D7C0F; }
.prop span { color: var(--muted); font-size: .84rem; }
.copiable { display: flex; gap: 8px; align-items: center; padding: 10px 12px; border-radius: 12px; background: var(--bg); border: 1px solid var(--line); font: 500 .82rem var(--mono); overflow-wrap: anywhere; }
.copiable code { flex: 1; min-width: 0; }
.estado { font-size: .9rem; display: grid; gap: 6px; }
.estado .si { color: var(--ok); } .estado .no { color: var(--bad); }
.plantilla { padding: 16px; border-radius: 16px; background: var(--bg); border: 1px dashed var(--line-2); display: grid; gap: 8px; }
.plantilla .cuerpo { font-size: 1rem; }
.plantilla .var { background: var(--lime); color: var(--on-lime); border-radius: 6px; padding: 0 6px; font-family: var(--mono); font-size: .88rem; }

/* lección */
.lec-sec { border-top: 1px solid var(--line); }
.rutas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 26px; }
.ruta { text-align: left; display: grid; gap: 6px; padding: 18px 20px; border-radius: 22px; border: 1px solid var(--line); background: var(--surface); color: var(--fg); cursor: pointer; transition: border-color .2s, transform .3s var(--ease); font: inherit; }
.ruta:hover { transform: translateY(-2px); }
.ruta[aria-selected="true"] { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.ruta b { font: 600 1.05rem var(--display); }
.ruta small { color: var(--muted); font-size: .82rem; }
.ruta .tag { justify-self: start; font: 600 .66rem var(--mono); text-transform: uppercase; letter-spacing: .08em; padding: 3px 8px; border-radius: 999px; background: var(--lime); color: var(--on-lime); }
.ruta .barra { height: 6px; border-radius: 3px; background: var(--surface-3); overflow: hidden; margin-top: 6px; }
.ruta .barra i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent-solid), var(--lime)); width: 0; transition: width .6s var(--ease); }
.pasos { display: grid; gap: 14px; list-style: none; padding: 0; margin: 0; }
.paso { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 22px; border-radius: 26px; border: 1px solid var(--line); background: var(--surface); }
.paso.hecho { border-color: rgba(198, 255, 61, .4); }
.paso-n { width: 48px; height: 48px; border-radius: 16px; display: grid; place-items: center; font: 700 1.1rem var(--display); background: var(--surface-2); }
.paso.hecho .paso-n { background: var(--lime); color: var(--on-lime); }
.paso-c { display: grid; gap: 14px; min-width: 0; }
.paso-cab { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.paso-cab h3 { flex: 1; min-width: 200px; }
.min { font: 500 .74rem var(--mono); color: var(--muted); background: var(--surface-2); padding: 4px 10px; border-radius: 999px; }
.hecho-chk { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--fg); cursor: pointer; font-size: .86rem; font-weight: 600; }
.hecho-chk input { width: 18px; height: 18px; accent-color: #84CC16; }
.paso-g { display: grid; grid-template-columns: 1fr 300px; gap: 20px; align-items: start; }
.paso-g > * { min-width: 0; }
.paso ol { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: .95rem; }
.paso ol code, .paso p code { font: 500 .84rem var(--mono); background: var(--surface-2); padding: 1px 6px; border-radius: 6px; }
.mock { border-radius: 16px; border: 1px solid var(--line-2); background: var(--bg); overflow: hidden; font-size: .78rem; }
.mock-barra { display: flex; gap: 5px; align-items: center; padding: 8px 10px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.mock-barra i { width: 8px; height: 8px; border-radius: 50%; background: var(--line-2); }
.mock-barra span { margin-left: 8px; font: 500 .7rem var(--mono); color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-c { padding: 12px; display: grid; gap: 7px; }
.mock-l { padding: 7px 10px; border-radius: 8px; background: var(--surface-2); color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-l.si { background: var(--accent-solid); color: #fff; font-weight: 600; box-shadow: 0 0 0 3px rgba(198, 255, 61, .55); }
.mock-l.chat-e { justify-self: start; max-width: 90%; background: var(--surface-3); color: var(--fg); white-space: normal; }
.mock-l.chat-s { justify-self: end; max-width: 90%; background: var(--bur-sal); color: #fff; white-space: normal; }
.errores { border-radius: 16px; border: 1px solid var(--line); padding: 4px 14px; }
.errores summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-weight: 600; font-size: .9rem; color: var(--warn); }
.errores ul { margin: 0 0 12px; padding-left: 18px; display: grid; gap: 8px; font-size: .9rem; }
.errores li b { color: var(--fg); }
.total { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 18px; padding: 18px 22px; border-radius: 22px; background: var(--surface-2); }
.total b { font: 700 1.1rem var(--display); }

/* notas, faq, final, pie */
.claro { border-top: 1px solid var(--line); }
.claro-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.claro-grid article { padding: 24px 22px; border-radius: 22px; background: var(--surface); border: 1px solid var(--line); display: grid; gap: 10px; align-content: start; }
.claro-grid p { color: var(--muted); font-size: .92rem; }
.faq { border-top: 1px solid var(--line); }
.faq-in { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.faq-lista { display: grid; gap: 10px; }
.faq details { border: 1px solid var(--line); border-radius: 18px; padding: 0 20px; background: var(--surface); }
.faq summary { cursor: pointer; min-height: 56px; display: flex; align-items: center; font: 600 1rem var(--display); list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; margin-left: auto; font-size: 1.3rem; color: var(--accent); transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 18px; color: var(--muted); }
.final { border-top: 1px solid var(--line); text-align: center; }
.final-in { display: grid; gap: 22px; justify-items: center; }
.final h2 { max-width: 20ch; }
.pie { border-top: 1px solid var(--line); padding-block: 28px; font-size: .86rem; color: var(--muted); }
.pie-in { display: flex; gap: 16px; justify-content: space-between; flex-wrap: wrap; }
.pie nav { display: flex; gap: 18px; flex-wrap: wrap; }
.pie a { color: var(--muted); }

/* aparición al hacer scroll */
.rev { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.rev.ver { opacity: 1; transform: none; }
.sin-js .rev { opacity: 1; transform: none; }

@media (max-width: 1060px) {
  .claro-grid { grid-template-columns: repeat(2, 1fr); }
  .sim, .kit { grid-template-columns: 1fr; }
  .kit-out { position: static; }
  .paso-g { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .herr { margin-left: auto; }
  .tres-grid, .priv, .rutas { grid-template-columns: 1fr; }
  .diagrama { grid-template-columns: 1fr; gap: 14px; }
  .d-flecha { height: 28px; width: 2px; justify-self: center; background: linear-gradient(180deg, transparent, var(--accent), transparent); }
  .d-flecha::after { width: 6px; height: 30%; left: -2px; top: -30%; animation-name: baja; }
  @keyframes baja { to { top: 100%; } }
  .faq-in { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding-inline: 16px; }
  .claro-grid { grid-template-columns: 1fr; }
  .dos { grid-template-columns: 1fr; }
  .tema { padding: 0 10px; font-size: .78rem; }
  .wordmark { width: 104px; height: 40px; }
  .ctas .btn { width: 100%; }
  .sellos { gap: 14px; grid-template-columns: repeat(3, 1fr); }
  .sellos b { font-size: 1.2rem; } .sellos span { font-size: .74rem; }
  .paso { grid-template-columns: 1fr; padding: 18px; }
  .paso-n { width: 40px; height: 40px; }
  .reloj b { font-size: 2.1rem; }
  .ent-fila { grid-template-columns: 90px 1fr; }
  .hero-chat { height: 420px; }
  .tel-sim .chat-cuerpo { height: 420px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-chat .bur, .rev { opacity: 1; transform: none; animation: none; transition: none; }
  .hero-chat .bur { max-height: none; margin-top: 8px; padding-block: 9px 18px; }
  .tel-hero .noti { animation: none; }
  .d-flecha::after { animation: none; }
  .btn:hover, .t-card:hover, .ruta:hover { transform: none; }
}