/* Encuesta de Cultura · Power Train Technologies */
:root {
  --noche: #111418;
  --noche-2: #1b2027;
  --acero: #2a323c;
  --azul: #1667b8;
  --azul-claro: #e8f1fb;
  --ambar: #e30613;      /* rojo Power Train */
  --ambar-osc: #b8050f;
  --rojo-claro: #ff4d57;
  --tinta: #14202e;
  --texto: #3e4b5a;
  --suave: #5c6875;
  --linea: #e3e8ee;
  --fondo: #f6f8fb;
  --blanco: #fff;
  --ok: #0a6e48;
  --error: #d9443a;
  /* Colores de las descripciones A–D (no indican tipo de cultura) */
  --la: #0b7e7a;
  --lb: #6545d8;
  --lc: #b35a07;
  --ld: #2263b8;
  --superficie: #fff;
  --superficie-2: #eef2f6;
  --pista: #e9eef4;
  --borde-fuerte: #b9c3cf;
  --hover-borde: #a9c6e6;
  --info-borde: #cfe1f5;
  --ok-fondo: #effaf5;
  --ok-borde: #cfe7db;
  --error-fondo: #fdecea;
  --desactivado-fondo: #e3e7ec;
  --desactivado-texto: #4f5a66;
  --vidrio-fondo: rgba(246, 248, 251, .92);
  --vidrio-sup: rgba(255, 255, 255, .94);
  --presupuesto: var(--noche);
  color-scheme: light;
  --radio: 14px;
  --sombra: 0 1px 2px rgba(17, 20, 24, .06), 0 8px 24px rgba(17, 20, 24, .07);
  --fuente: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --display: "Barlow Condensed", "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

/* ─── Tema oscuro: por preferencia del sistema o elegido en la barra de accesibilidad ─── */
@media (prefers-color-scheme: dark) {
  :root:not([data-tema="claro"]) {
  color-scheme: dark;
  --tinta: #eef1f4;
  --texto: #c6cdd5;
  --suave: #9ba6b2;
  --linea: #2d3540;
  --fondo: #111418;
  --azul: #6da7ec;
  --azul-claro: #172638;
  --ok: #3ccf8e;
  --error: #ff7a70;
  --superficie: #1a1f26;
  --superficie-2: #232a33;
  --pista: #232a33;
  --borde-fuerte: #4a5562;
  --hover-borde: #3d6ea8;
  --info-borde: #24486f;
  --ok-fondo: #12291f;
  --ok-borde: #1d4a35;
  --error-fondo: #3a1715;
  --desactivado-fondo: #262d36;
  --desactivado-texto: #aab4bf;
  --vidrio-fondo: rgba(17, 20, 24, .9);
  --vidrio-sup: rgba(26, 31, 38, .94);
  --presupuesto: #252c36;
  --ambar-osc: #ff6b72;
  --sombra: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  }
}
:root[data-tema="oscuro"] {
  color-scheme: dark;
  --tinta: #eef1f4;
  --texto: #c6cdd5;
  --suave: #9ba6b2;
  --linea: #2d3540;
  --fondo: #111418;
  --azul: #6da7ec;
  --azul-claro: #172638;
  --ok: #3ccf8e;
  --error: #ff7a70;
  --superficie: #1a1f26;
  --superficie-2: #232a33;
  --pista: #232a33;
  --borde-fuerte: #4a5562;
  --hover-borde: #3d6ea8;
  --info-borde: #24486f;
  --ok-fondo: #12291f;
  --ok-borde: #1d4a35;
  --error-fondo: #3a1715;
  --desactivado-fondo: #262d36;
  --desactivado-texto: #aab4bf;
  --vidrio-fondo: rgba(17, 20, 24, .9);
  --vidrio-sup: rgba(26, 31, 38, .94);
  --presupuesto: #252c36;
  --ambar-osc: #ff6b72;
  --sombra: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--fuente); font-size: 1rem; line-height: 1.55;
  color: var(--texto); background: var(--fondo); -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--display); color: var(--tinta); line-height: 1.08; margin: 0; font-weight: 700; }
button { font: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--ambar); outline-offset: 2px; }

/* ─── Marca ─── */
.marca { display: inline-flex; background: var(--superficie); border-radius: 10px; padding: 8px 12px; box-shadow: 0 6px 20px rgba(0, 0, 0, .3); }
.marca img { display: block; width: 116px; height: auto; }
.marca-sm { padding: 6px 9px; border-radius: 8px; }
.marca-sm img { width: 84px; }

/* ─── Botones ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 26px; border-radius: 12px; border: 0; cursor: pointer;
  font-family: var(--display); font-weight: 700; font-size: 1.12rem; text-transform: uppercase; letter-spacing: .06em; transition: background .2s, transform .1s, box-shadow .2s, opacity .2s;
}
.btn svg { width: 20px; height: 20px; }
.btn:active { transform: translateY(1px); }
.btn-primario { background: var(--ambar); color: #fff; box-shadow: 0 6px 18px rgba(227, 6, 19, .35); }
.btn-primario:hover { background: #f5111e; }
.btn-primario:disabled { background: var(--desactivado-fondo); color: var(--desactivado-texto); box-shadow: none; cursor: not-allowed; } /* el texto orienta («Faltan 60 puntos»): debe leerse */
.btn-secundario { background: transparent; color: var(--texto); }
.btn-secundario:hover { background: var(--superficie-2); }
.btn-bloque { width: 100%; }
.btn.cargando { pointer-events: none; opacity: .8; }
.btn.cargando svg { animation: girar 1s linear infinite; }
@keyframes girar { to { transform: rotate(360deg); } }

/* ─── Hero / ingreso ─── */
.hero { position: relative; min-height: 100vh; min-height: 100dvh; color: #fff; overflow: hidden; display: flex; flex-direction: column; background: var(--noche); }
.hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.06); animation: acercar 22s ease-out forwards;
}
@keyframes acercar { to { transform: scale(1); } }
.hero-shade {
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 600px at 85% 20%, rgba(227, 6, 19, .10), transparent 60%),
    linear-gradient(100deg, rgba(17, 20, 24, .94) 0%, rgba(17, 20, 24, .7) 38%, rgba(17, 20, 24, .25) 70%, rgba(17, 20, 24, .35) 100%),
    linear-gradient(0deg, rgba(17, 20, 24, .55) 0%, transparent 40%);
}
.hero-top { position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: center; padding: 28px clamp(20px, 5vw, 64px); gap: 16px; }
.hero-tag { font-family: var(--mono); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255, 255, 255, .7); border: 1px solid rgba(255, 255, 255, .25); padding: 6px 12px; border-radius: 99px; }
.hero-cuerpo {
  position: relative; z-index: 1; flex: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 5vw, 80px);
  align-items: center; padding: 20px clamp(20px, 5vw, 64px) 56px; max-width: 1320px; width: 100%; margin: 0 auto;
}
.kicker { color: var(--rojo-claro); font-family: var(--mono); font-weight: 500; letter-spacing: .12em; text-transform: uppercase; font-size: .78rem; margin: 0 0 18px; }
.kicker::before { content: "// "; opacity: .7; }
.hero h1 { color: #fff; font-size: clamp(2.9rem, 6.4vw, 5.6rem); font-weight: 800; text-transform: uppercase; line-height: .98; }
.hero h1 span { color: var(--rojo-claro); }
.hero-lead { font-size: clamp(1.02rem, 1.4vw, 1.2rem); color: rgba(255, 255, 255, .82); max-width: 560px; margin: 22px 0 30px; }
.hero-pills { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.hero-pills li {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border-radius: 99px; font-size: .9rem;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16); backdrop-filter: blur(6px);
}
.hero-pills svg { width: 18px; height: 18px; color: var(--rojo-claro); }

.tarjeta-codigo {
  background: var(--superficie); color: var(--texto); border-radius: 20px; padding: 32px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .35); animation: subir .7s .15s both cubic-bezier(.2, .8, .2, 1);
}
@keyframes subir { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
.tc-label { display: block; font-family: var(--display); font-weight: 700; font-size: 1.55rem; color: var(--tinta); text-transform: uppercase; }
.tc-ayuda { font-size: .92rem; color: var(--suave); margin: 6px 0 18px; }
.tc-input {
  width: 100%; font-family: var(--mono); font-size: 1.7rem; letter-spacing: .22em;
  text-align: center; text-transform: uppercase; padding: 14px; border: 2px solid var(--linea); border-radius: 12px; color: var(--tinta);
  background: var(--fondo); transition: border-color .2s, box-shadow .2s;
}
.tc-input:focus { outline: none; border-color: var(--ambar); box-shadow: 0 0 0 4px rgba(227, 6, 19, .12); background: var(--superficie); }
.tc-input.error { border-color: var(--error); animation: sacudir .35s; }
@keyframes sacudir { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
.tc-error { color: var(--error); font-size: .9rem; min-height: 1.4em; margin: 8px 0 10px; }
.faq { border-top: 1px solid var(--linea); padding: 12px 0 0; margin-top: 12px; font-size: .92rem; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--tinta); list-style: none; display: flex; justify-content: space-between; }
.faq summary::after { content: "+"; color: var(--azul); font-weight: 700; }
.faq[open] summary::after { content: "–"; }
.faq p { margin: 8px 0 0; color: var(--texto); }

/* ─── App: panel visual + panel de trabajo ─── */
.app { display: grid; grid-template-columns: minmax(320px, 38%) 1fr; min-height: 100vh; min-height: 100dvh; }
.visual { position: sticky; top: 0; height: 100vh; height: 100dvh; overflow: hidden; color: #fff; background: var(--noche); }
.visual-img { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0; transition: opacity .9s ease, transform 8s ease; transform: scale(1.06); }
.visual-img.activa { opacity: 1; transform: scale(1); }
.visual-shade {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(17, 20, 24, .75) 0%, rgba(17, 20, 24, .2) 35%, rgba(17, 20, 24, .55) 60%, rgba(17, 20, 24, .96) 100%);
}
.visual-top { position: absolute; top: 0; left: 0; right: 0; padding: 30px 36px; z-index: 1; }
.visual-texto { position: absolute; left: 0; right: 0; bottom: 0; padding: 36px; z-index: 1; }
.visual-kicker { color: var(--rojo-claro); font-family: var(--mono); font-weight: 500; font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 10px; }
.visual h2 { color: #fff; font-size: clamp(2rem, 3.1vw, 3rem); font-weight: 800; text-transform: uppercase; }
.visual-texto > p:not(.visual-kicker) { color: rgba(255, 255, 255, .78); margin: 12px 0 26px; max-width: 440px; }
.visual-texto .anim { animation: aparecer .6s both ease; }
@keyframes aparecer { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.secciones { list-style: none; padding: 0; margin: 0; display: flex; gap: 6px; }
.secciones li { flex: 1; }
.secciones .barra { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .22); overflow: hidden; }
.secciones .barra i { display: block; height: 100%; width: 0; background: var(--ambar); transition: width .5s ease; }
.secciones span { display: block; white-space: nowrap; font-family: var(--mono); font-size: .75rem; letter-spacing: .02em; text-transform: uppercase; color: rgba(255, 255, 255, .55); margin-top: 8px; }
.secciones li.actual span { color: #fff; }

.panel { display: flex; flex-direction: column; min-height: 100vh; min-height: 100dvh; background: var(--fondo); }
.panel-top { position: sticky; top: 0; z-index: 5; background: var(--vidrio-fondo); backdrop-filter: blur(10px); padding: 20px clamp(20px, 4vw, 56px) 14px; }
.avance { font-family: var(--mono); display: flex; justify-content: space-between; font-size: .82rem; color: var(--suave); margin-bottom: 8px; font-weight: 500; }
.avance-barra { height: 6px; background: var(--linea); border-radius: 6px; overflow: hidden; }
#avance-relleno { height: 100%; width: 0; background: linear-gradient(90deg, #6b7787, var(--ambar)); border-radius: 6px; transition: width .5s cubic-bezier(.2, .8, .2, 1); }
.panel-cuerpo { flex: 1; padding: 18px clamp(20px, 4vw, 56px) 40px; max-width: 880px; width: 100%; }
.panel-cuerpo:focus { outline: none; }
.panel-nav {
  position: sticky; bottom: 0; z-index: 5; display: flex; justify-content: space-between; gap: 12px;
  padding: 14px clamp(20px, 4vw, 56px); padding-bottom: max(14px, env(safe-area-inset-bottom));
  background: var(--vidrio-sup); backdrop-filter: blur(10px); border-top: 1px solid var(--linea);
}
.panel-nav .btn-primario { min-width: 220px; }

.paso-anim { animation: entrar .45s both cubic-bezier(.2, .8, .2, 1); }
.paso-anim.atras { animation-name: entrar-atras; }
@keyframes entrar { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: none; } }
@keyframes entrar-atras { from { opacity: 0; transform: translateX(-24px); } to { opacity: 1; transform: none; } }

/* ─── Contenido de los pasos ─── */
.eyebrow { font-family: var(--mono); font-size: .8rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--azul); margin: 0 0 8px; }
.paso-titulo { font-size: clamp(1.9rem, 3.1vw, 2.6rem); font-weight: 700; }
.paso-sub { color: var(--suave); margin: 10px 0 26px; font-size: 1.02rem; }
.texto-largo p { font-size: 1.06rem; color: var(--texto); }
.caja { background: var(--superficie); border: 1px solid var(--linea); border-radius: var(--radio); padding: 22px; box-shadow: var(--sombra); }
.caja + .caja { margin-top: 16px; }
.aviso { display: flex; gap: 14px; align-items: flex-start; background: var(--azul-claro); border: 1px solid var(--info-borde); border-radius: var(--radio); padding: 16px 18px; color: var(--acero); font-size: .95rem; }
.aviso svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--azul); margin-top: 2px; }

.consentimiento { display: flex; gap: 14px; align-items: flex-start; cursor: pointer; padding: 18px; border: 2px solid var(--linea); border-radius: var(--radio); background: var(--superficie); margin-top: 22px; transition: border-color .2s, background .2s; }
.consentimiento input { position: absolute; opacity: 0; pointer-events: none; }
.consentimiento .caja-check { width: 26px; height: 26px; border-radius: 8px; border: 2px solid var(--borde-fuerte); flex-shrink: 0; display: grid; place-items: center; transition: all .2s; }
.consentimiento .caja-check svg { width: 16px; height: 16px; color: #fff; opacity: 0; transform: scale(.5); transition: all .2s; }
.consentimiento.marcado { border-color: var(--ok); background: var(--ok-fondo); }
.consentimiento.marcado .caja-check { background: var(--ok); border-color: var(--ok); }
.consentimiento.marcado .caja-check svg { opacity: 1; transform: none; }
.consentimiento:has(input:focus-visible) { outline: 3px solid var(--ambar); outline-offset: 2px; }
.consentimiento strong { color: var(--tinta); }

/* Clasificación: opciones en tarjeta */
.campo { margin-bottom: 28px; }
.campo-etiqueta { font-weight: 700; color: var(--tinta); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.campo-etiqueta .ok { width: 20px; height: 20px; color: var(--ok); opacity: 0; transform: scale(.6); transition: all .25s; }
.campo.listo .campo-etiqueta .ok { opacity: 1; transform: none; }
.opciones { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px; }
.opcion {
  position: relative; display: flex; align-items: center; gap: 12px; padding: 14px 16px; min-height: 56px; border-radius: 12px;
  background: var(--superficie); border: 1.5px solid var(--linea); cursor: pointer; color: var(--tinta); font-weight: 500; text-align: left;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.opcion:hover { border-color: var(--hover-borde); }
.opcion .radio { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--borde-fuerte); flex-shrink: 0; transition: all .15s; }
.opcion[aria-checked="true"] { border-color: var(--azul); background: var(--azul-claro); box-shadow: 0 0 0 3px rgba(22, 103, 184, .1); }
.opcion[aria-checked="true"] .radio { border: 6px solid var(--azul); }

/* Parte A: reparto de puntos */
.busca { font-size: .95rem; color: var(--suave); margin: 8px 0 22px; }
.busca b { color: var(--texto); font-weight: 600; }
.columnas-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; background: var(--pista); padding: 6px; border-radius: 14px; margin-bottom: 16px; }
.col-tab {
  border: 0; background: transparent; border-radius: 10px; padding: 10px 12px; cursor: pointer; text-align: left; color: var(--texto);
  display: flex; flex-direction: column; gap: 2px; transition: background .2s, box-shadow .2s;
}
.col-tab b { font-family: var(--display); font-size: 1.25rem; text-transform: uppercase; letter-spacing: .02em; color: var(--tinta); }
.col-tab small { font-size: .8rem; color: var(--suave); }
.col-tab .estado { font-family: var(--mono); font-size: .8rem; font-weight: 600; color: var(--ambar-osc); }
.col-tab .estado.completo { color: var(--ok); }
.col-tab[aria-selected="true"] { background: var(--superficie); box-shadow: 0 2px 10px rgba(17, 20, 24, .1); }

.presupuesto { background: var(--presupuesto); color: #fff; border-radius: var(--radio); padding: 18px 20px; margin-bottom: 16px; position: sticky; top: 64px; z-index: 3; box-shadow: 0 10px 30px rgba(17, 20, 24, .25); }
.presupuesto-fila { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 12px; }
.presupuesto-fila .etq { font-family: var(--mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: rgba(255, 255, 255, .7); }
.restantes { font-family: var(--mono); font-weight: 600; font-size: 1.05rem; color: #ffb4b8; transition: color .3s; white-space: nowrap; }
.restantes.completo { color: #4be0a3; }
.restantes.pasado { color: #ff8a80; }
.barra-100 { display: flex; height: 14px; border-radius: 8px; overflow: hidden; background: rgba(255, 255, 255, .12); }
.barra-100 i { display: block; height: 100%; transition: width .35s cubic-bezier(.2, .8, .2, 1); }
.barra-100 i + i { box-shadow: inset 2px 0 0 var(--noche); }
.presupuesto.pulso { animation: pulso .6s; }
@keyframes pulso { 50% { box-shadow: 0 0 0 6px rgba(75, 224, 163, .35); } }

.descripciones { display: grid; gap: 12px; }
.desc {
  display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; background: var(--superficie);
  border: 1.5px solid var(--linea); border-radius: var(--radio); padding: 16px 16px 16px 18px; transition: border-color .2s, box-shadow .2s;
  border-left: 5px solid var(--c);
}
.desc.con-puntos { box-shadow: var(--sombra); }
.letra { width: 38px; height: 38px; border-radius: 8px; display: grid; place-items: center; font-family: var(--mono); font-weight: 600; color: #fff; background: var(--c); }
.desc p { margin: 0; color: var(--tinta); font-size: 1rem; line-height: 1.45; }
.desc .ref { display: block; font-size: .8rem; color: var(--suave); margin-top: 6px; }
.stepper { display: flex; align-items: center; gap: 6px; }
.stepper button {
  width: 44px; height: 44px; border-radius: 12px; border: 1.5px solid var(--linea); background: var(--superficie); cursor: pointer; color: var(--tinta);
  display: grid; place-items: center; transition: background .15s, border-color .15s; touch-action: manipulation; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none;
}
.stepper button svg { width: 18px; height: 18px; }
.stepper button:hover:not(:disabled) { border-color: var(--azul); background: var(--azul-claro); }
.stepper button:disabled { opacity: .35; cursor: not-allowed; }
.stepper output { min-width: 58px; text-align: center; font-family: var(--mono); font-weight: 600; font-size: 1.35rem; color: var(--tinta); }
.stepper output.bump { animation: bump .25s; }
@keyframes bump { 50% { transform: scale(1.18); color: var(--azul); } }

/* Ejemplo de la Parte A */
.instrucciones { counter-reset: n; list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 10px; }
.instrucciones li { counter-increment: n; display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; background: var(--superficie); border: 1px solid var(--linea); border-radius: 12px; padding: 14px 16px; }
.instrucciones li::before { content: counter(n, decimal-leading-zero); font-family: var(--mono); width: 30px; height: 30px; border-radius: 50%; background: var(--noche); color: var(--ambar); font-weight: 700; display: grid; place-items: center; font-size: .9rem; }
.ejemplo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.ejemplo h4 { margin: 0 0 10px; font-family: var(--display); color: var(--tinta); font-size: 1.2rem; text-transform: uppercase; }
.ej-fila { display: grid; grid-template-columns: 26px 1fr 40px; gap: 10px; align-items: center; margin-bottom: 8px; font-size: .9rem; }
.ej-fila .mini { width: 26px; height: 26px; border-radius: 7px; background: var(--c); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: .8rem; }
.ej-fila .pista { height: 10px; border-radius: 6px; background: var(--superficie-2); overflow: hidden; }
.ej-fila .pista i { display: block; height: 100%; background: var(--c); border-radius: 6px; }
.ej-fila b { text-align: right; color: var(--tinta); }
.ej-total { display: flex; justify-content: space-between; border-top: 1px dashed var(--linea); padding-top: 8px; font-weight: 700; color: var(--ok); font-size: .9rem; }

/* Parte B */
.contador-b { font-family: var(--mono); display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--azul); background: var(--azul-claro); padding: 6px 12px; border-radius: 99px; font-size: .88rem; margin-bottom: 18px; }
.afirmacion { background: var(--superficie); border: 1.5px solid var(--linea); border-radius: var(--radio); padding: 20px; margin-bottom: 12px; transition: border-color .3s, opacity .3s, box-shadow .3s; scroll-margin-top: 110px; }
.afirmacion.respondida { border-color: var(--ok-borde); }
.afirmacion.foco { border-color: var(--azul); box-shadow: 0 0 0 4px rgba(22, 103, 184, .1); }
.afirmacion-head { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 16px; }
.afirmacion-num { font-family: var(--mono); font-weight: 600; font-size: .78rem; color: var(--azul); background: var(--azul-claro); border-radius: 8px; padding: 4px 8px; flex-shrink: 0; }
.afirmacion-head p { margin: 0; color: var(--tinta); font-size: 1.05rem; font-weight: 500; }
.escala { display: grid; grid-template-columns: repeat(5, 1fr) 1.1fr; gap: 6px; }
.escala button {
  border: 1.5px solid var(--linea); background: var(--superficie); border-radius: 10px; padding: 10px 4px; min-height: 64px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; color: var(--texto); transition: all .15s;
}
.escala button b { font-family: var(--mono); font-size: 1.15rem; color: var(--tinta); }
.escala button small { font-size: .75rem; line-height: 1.15; text-align: center; color: var(--suave); }
.escala button:hover { border-color: var(--e); }
.escala button[aria-checked="true"] { background: var(--e); border-color: var(--e); }
.escala button[aria-checked="true"] b, .escala button[aria-checked="true"] small { color: #fff; }
.escala .ns { --e: #5f6b78; }
.escala .ns b { font-size: .95rem; }

/* Parte C */
.abierta { margin-bottom: 22px; }
.abierta label { display: flex; gap: 12px; font-weight: 600; color: var(--tinta); font-size: 1.05rem; margin-bottom: 10px; }
.abierta label span { color: var(--azul); font-family: var(--mono); font-weight: 600; }
.abierta textarea {
  width: 100%; min-height: 130px; resize: vertical; border: 1.5px solid var(--linea); border-radius: 12px; padding: 14px 16px;
  font: inherit; color: var(--tinta); background: var(--superficie); transition: border-color .2s, box-shadow .2s;
}
.abierta textarea:focus { outline: none; border-color: var(--azul); box-shadow: 0 0 0 4px rgba(22, 103, 184, .12); }
.abierta .cuenta { text-align: right; font-size: .78rem; color: var(--suave); margin-top: 4px; }

/* Revisión */
.revision { display: grid; gap: 10px; }
.rev-item { display: flex; align-items: center; gap: 14px; background: var(--superficie); border: 1.5px solid var(--linea); border-radius: 12px; padding: 14px 16px; }
.rev-item .ico { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; flex-shrink: 0; }
.rev-item .ico svg { width: 16px; height: 16px; }
.rev-item.ok .ico { background: var(--ok-fondo); color: var(--ok); }
.rev-item.falta .ico { background: var(--error-fondo); color: var(--error); }
.rev-item div { flex: 1; }
.rev-item b { color: var(--tinta); display: block; }
.rev-item small { color: var(--suave); }
.rev-item button { background: none; border: 0; color: var(--azul); font-weight: 600; cursor: pointer; padding: 8px; }
.error-envio { color: var(--error); background: var(--error-fondo); border-radius: 12px; padding: 12px 16px; margin-top: 16px; }

/* Gracias */
.hero-gracias { align-items: center; justify-content: center; text-align: center; }
.gracias-caja { position: relative; z-index: 1; max-width: 620px; padding: 32px 24px; }
.check-anim { width: 96px; height: 96px; color: var(--ambar); margin-bottom: 18px; }
.check-anim circle { stroke-dasharray: 190; stroke-dashoffset: 190; animation: trazo .8s .1s forwards ease-out; }
.check-anim path { stroke-dasharray: 50; stroke-dashoffset: 50; animation: trazo .5s .75s forwards ease-out; }
@keyframes trazo { to { stroke-dashoffset: 0; } }
.hero-gracias h1 { color: #fff; font-size: clamp(3rem, 8vw, 5.5rem); font-weight: 800; text-transform: uppercase; animation: aparecer .6s .4s both; }
.hero-gracias p { font-size: 1.15rem; color: rgba(255, 255, 255, .85); animation: aparecer .6s .6s both; }
.gracias-nota { font-size: .95rem !important; color: rgba(255, 255, 255, .6) !important; }

.toast {
  position: fixed; left: 50%; bottom: 96px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; z-index: 50;
  background: var(--noche); color: #fff; padding: 12px 20px; border-radius: 12px; font-size: .95rem; box-shadow: 0 10px 30px rgba(0, 0, 0, .25);
  transition: opacity .25s, transform .25s; max-width: calc(100vw - 32px);
}
.toast.visible { opacity: 1; transform: translate(-50%, 0); }

/* ─── Responsivo ─── */
@media (max-width: 1000px) {
  .hero-cuerpo { grid-template-columns: 1fr; padding-top: 0; }
  .hero-texto { padding-top: 8px; }
}
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .visual { position: relative; height: 150px; }
  .visual-top { display: flex; justify-content: flex-end; }
  .marca-sm { padding: 4px 6px; }
  .marca-sm img { width: 58px; }
  .visual-top { padding: 14px 20px; }
  .visual-texto { padding: 12px 20px 14px; }
  .visual-kicker { margin-bottom: 4px; font-size: .76rem; }
  .visual h2 { font-size: 1.55rem; }
  .panel-cuerpo .eyebrow { display: none; }
  .paso-titulo { font-size: 1.75rem; }
  .visual-texto > p:not(.visual-kicker), .secciones { display: none; }
  .panel { min-height: auto; }
  .panel-nav .btn-primario { min-width: 0; flex: 1; }
  .presupuesto { top: 58px; }
}
/* Tablet vertical: una columna, pero con la franja de imagen más alta (más impacto que en el teléfono) */
@media (min-width: 561px) and (max-width: 860px) {
  .visual { height: 230px; }
  .visual h2 { font-size: 2.1rem; }
  .visual-texto { padding: 20px 32px 22px; }
  .visual-top { padding: 18px 32px; }
  .marca-sm img { width: 76px; }
}
@media (max-width: 560px) {
  body { font-size: .97rem; }
  .hero-top { padding: 20px; }
  .hero .marca img { width: 96px; }
  .hero-tag { display: none; }
  .hero-cuerpo { align-items: start; gap: 22px; padding-bottom: 28px; }
  .hero h1 { font-size: 2.6rem; }
  .kicker { margin-bottom: 10px; font-size: .78rem; }
  .hero-lead { font-size: .98rem; margin: 12px 0 14px; }
  .hero-pills { gap: 6px; }
  .hero-pills li { padding: 6px 10px; font-size: .78rem; }
  .hero-pills svg { width: 15px; height: 15px; }
  .tarjeta-codigo { padding: 24px 20px; }
  .desc { grid-template-columns: auto 1fr; gap: 12px; padding: 14px; }
  .desc .stepper { grid-column: 1 / -1; justify-content: flex-end; }
  .letra { width: 32px; height: 32px; }
  .ejemplo { grid-template-columns: 1fr; }
  .escala { grid-template-columns: repeat(5, 1fr); }
  .escala .ns { grid-column: 1 / -1; min-height: 44px; flex-direction: row; gap: 8px; }
  .escala button small { display: none; }
  .escala .ns small { display: inline; }
  .escala-leyenda { display: flex !important; }
  .panel-nav .btn-secundario span { display: none; }
}
.escala-leyenda { display: none; justify-content: space-between; font-size: .75rem; color: var(--suave); margin-top: 6px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ─── Barra de lectura (tamaño de letra y tema) ─── */
.hero-der { display: flex; align-items: center; gap: 12px; }
.acc-barra { display: inline-flex; gap: 2px; padding: 3px; border-radius: 10px; }
.acc-barra button {
  min-width: 40px; height: 36px; border: 0; border-radius: 8px; background: transparent; color: inherit; cursor: pointer;
  font-family: var(--mono); font-weight: 600; font-size: .9rem; display: grid; place-items: center; padding: 0 8px;
}
.acc-barra button svg { width: 18px; height: 18px; }
.acc-barra button:disabled { opacity: .35; cursor: default; }
.acc-oscura { background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .2); color: #fff; backdrop-filter: blur(6px); }
.acc-oscura button:hover:not(:disabled) { background: rgba(255, 255, 255, .14); }
.visual-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }

/* ─── Indicador de autoguardado ─── */
.guardado { display: inline-flex; align-items: center; gap: 6px; color: var(--suave); }
.guardado::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; opacity: 0; }
.guardado.ok { color: var(--ok); }
.guardado.ok::before, .guardado.pendiente::before, .guardado.local::before { opacity: 1; }
.guardado.pendiente::before { animation: latido 1s infinite; }
.guardado.local { color: var(--ambar-osc); }
@keyframes latido { 50% { opacity: .25; } }
@media (max-width: 860px) {
  .visual-top { flex-direction: row-reverse; }
  .acc-barra button { min-width: 40px; height: 40px; }
}
@media (max-width: 560px) {
  .hero-der .hero-tag { display: none; }
  .avance { flex-wrap: wrap; gap: 4px 12px; }
  .guardado { order: 3; width: 100%; }
}
.tc-aviso { font-size: .88rem; color: var(--suave); margin: 14px 0 0; border-top: 1px solid var(--linea); padding-top: 12px; }
.enlace-aviso { color: var(--azul); font-weight: 600; }
.consentimiento .enlace-aviso { text-decoration: underline; }

.banda-piloto { position: sticky; top: 0; z-index: 60; background: #ffd23f; color: #14191f; text-align: center; font-weight: 600; font-size: .9rem; padding: 8px 16px; }