/* ═══════════════════════════════════════════════════════════
   Cuestionario de Ingenia IA · una pregunta por pantalla
   Mismos colores y tipografías que ingeniaia.es.
   ═══════════════════════════════════════════════════════════ */

:root{
  --fondo:#060713;
  --cian:#00F0FF;
  --azul:#3B82F6;
  --morado:#B55FE6;
  --rosa:#FF007F;
  --texto:#F1F3FA;
  --apagado:#93A1C6;
  --apagado-2:#5B6990;
  --borde:rgba(0,240,255,.16);
  --borde-vivo:rgba(181,95,230,.45);
  --cristal:rgba(11,13,30,.72);
  --grad:linear-gradient(135deg,#00F0FF,#3B82F6);
  --grad-texto:linear-gradient(90deg,#00F0FF,#B55FE6);
  --fh:'Space Grotesk',system-ui,sans-serif;
  --fb:'Inter',system-ui,sans-serif;
  --curva:14px;
  --transicion:.25s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:var(--fb);font-weight:300;
  background:var(--fondo);color:var(--texto);
  line-height:1.6;min-height:100vh;
  display:flex;flex-direction:column;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

.fondo{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(52% 40% at 78% 6%,rgba(181,95,230,.17),transparent 62%),
    radial-gradient(46% 38% at 8% 94%,rgba(0,240,255,.13),transparent 60%);
}

.contenedor{width:min(680px,100% - 2.4rem);margin-inline:auto}
main{flex:1;display:flex;flex-direction:column;justify-content:center}

a{color:var(--cian);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}

/* ─────────── Cabecera ─────────── */

.cabecera{padding:1.3rem 0}
.cabecera__caja{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.marca{display:flex;flex-direction:column;line-height:1;text-decoration:none}
.marca:hover{text-decoration:none}
.marca__nombre{
  font-family:var(--fh);font-weight:700;font-size:1rem;
  background:var(--grad-texto);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.marca__oficio{
  font-size:.56rem;letter-spacing:.26em;text-transform:uppercase;
  color:var(--apagado-2);margin-top:.38rem;
}
.cabecera__guardado{font-size:.72rem;color:var(--apagado-2)}

/* ─────────── Progreso ─────────── */

.progreso{position:sticky;top:0;z-index:20;background:rgba(6,7,19,.9);backdrop-filter:blur(10px)}
.progreso[hidden]{display:none}
.progreso__barra{height:2px;background:rgba(91,105,144,.26)}
.progreso__barra span{
  display:block;height:100%;width:0;background:var(--grad-texto);
  transition:width .45s cubic-bezier(.4,0,.2,1);
}
.progreso__datos{
  display:flex;justify-content:space-between;align-items:center;
  padding:.6rem 0;font-family:var(--fh);font-size:.66rem;
  letter-spacing:.18em;text-transform:uppercase;
}
.progreso__bloque{color:var(--cian)}
.progreso__cuenta{color:var(--apagado-2)}

/* ─────────── Botones ─────────── */

.boton{
  display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
  padding:.9rem 1.9rem;border-radius:999px;
  font-family:var(--fh);font-size:.8rem;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;
  transition:transform var(--transicion),box-shadow var(--transicion),background var(--transicion);
}
.boton--primario{background:var(--grad);color:#050713;box-shadow:0 14px 30px -16px rgba(0,240,255,.6)}
.boton--primario:hover{transform:translateY(-2px);box-shadow:0 20px 38px -16px rgba(0,240,255,.78)}
.boton--primario:disabled{opacity:.6;cursor:default;transform:none}
.boton--linea{border:1px solid var(--borde-vivo);color:var(--texto)}
.boton--linea:hover{background:rgba(181,95,230,.12)}
.boton--texto{color:var(--apagado);padding-inline:.9rem;letter-spacing:.06em}
.boton--texto:hover{color:var(--texto)}
.boton--icono{
  width:42px;height:42px;padding:0;border-radius:50%;
  border:1px solid var(--borde);color:var(--apagado);font-size:1rem;
}
.boton--icono:hover{border-color:var(--borde-vivo);color:var(--texto)}
.boton[hidden]{display:none}

.tecla{
  font-size:.62rem;letter-spacing:.04em;text-transform:none;
  opacity:.7;border:1px solid currentColor;border-radius:5px;padding:.08rem .4rem;
}
.tecla[hidden]{display:none}

/* ─────────── Bienvenida ─────────── */

.cejilla{
  font-size:.66rem;letter-spacing:.3em;text-transform:uppercase;
  color:var(--cian);margin-bottom:1rem;
}
.bienvenida{padding:clamp(2rem,7vw,3.6rem) 0}
.bienvenida h1{
  font-family:var(--fh);font-weight:700;
  font-size:clamp(2.1rem,7vw,3.4rem);line-height:1.06;letter-spacing:-.025em;
}
.bienvenida h1 em{
  font-style:normal;
  background:var(--grad-texto);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.bienvenida__texto{color:var(--apagado);margin-top:1.2rem;max-width:34rem}
.bienvenida__texto strong{color:var(--texto);font-weight:500}
.bienvenida__botones{display:flex;flex-wrap:wrap;align-items:center;gap:.8rem;margin-top:2.2rem}
.bienvenida__pie{margin-top:1.6rem;font-size:.82rem;color:var(--apagado-2)}

/* ─────────── La pantalla de la pregunta ─────────── */

.pantalla{padding:clamp(1.6rem,6vw,3rem) 0 2.4rem}
.pantalla[hidden]{display:none}

.pregunta__texto{
  font-family:var(--fh);font-weight:600;
  font-size:clamp(1.45rem,4.6vw,2.15rem);line-height:1.2;letter-spacing:-.02em;
}
.obligatorio{color:var(--rosa);margin-left:.3rem;cursor:help}
.pregunta__ayuda{
  color:var(--apagado);margin-top:.85rem;font-size:.98rem;max-width:34rem;line-height:1.55;
}

.pregunta input[type="text"],
.pregunta input[type="email"],
.pregunta input[type="tel"],
.pregunta textarea,
.pregunta select{
  width:100%;margin-top:1.8rem;
  background:transparent;border:0;border-bottom:1px solid var(--borde);
  border-radius:0;padding:.7rem .2rem;
  color:var(--texto);font-family:var(--fb);font-weight:300;
  font-size:clamp(1.1rem,3vw,1.35rem);
  transition:border-color var(--transicion);
}
.pregunta textarea{
  resize:vertical;min-height:100px;line-height:1.55;
  font-size:clamp(1rem,2.6vw,1.15rem);
  border:1px solid var(--borde);border-radius:var(--curva);
  background:var(--cristal);padding:1rem 1.1rem;
}
.pregunta select{
  border:1px solid var(--borde);border-radius:var(--curva);
  background:var(--cristal);padding:.95rem 1.1rem;cursor:pointer;
}
.pregunta select option{background:#11142F;color:var(--texto)}
.pregunta input:focus,.pregunta textarea:focus,.pregunta select:focus{
  outline:none;border-color:var(--cian);
}
.pregunta input::placeholder,.pregunta textarea::placeholder{color:rgba(147,161,198,.32)}

/* Opciones */
.opciones{display:grid;gap:.6rem;margin-top:1.8rem}
.opcion{
  display:flex;align-items:center;gap:.9rem;
  padding:.9rem 1.1rem;border:1px solid var(--borde);border-radius:var(--curva);
  background:var(--cristal);cursor:pointer;
  transition:border-color var(--transicion),background var(--transicion),transform var(--transicion);
}
.opcion:hover{border-color:var(--borde-vivo);transform:translateX(3px)}
.opcion input{position:absolute;opacity:0;width:0;height:0}
.opcion__letra{
  flex:none;width:26px;height:26px;border-radius:7px;
  border:1px solid var(--apagado-2);color:var(--apagado-2);
  display:grid;place-items:center;
  font-family:var(--fh);font-size:.72rem;font-weight:600;
  transition:all var(--transicion);
}
.opcion__texto{font-size:1.02rem;color:var(--apagado)}
.opcion:has(input:checked){border-color:var(--cian);background:rgba(0,240,255,.08)}
.opcion:has(input:checked) .opcion__letra{
  background:var(--grad);border-color:transparent;color:#050713;
}
.opcion:has(input:checked) .opcion__texto{color:var(--texto)}
.opcion:has(input:focus-visible){outline:2px solid var(--cian);outline-offset:3px}

/* ─────────── Navegación ─────────── */

.navegacion{
  display:flex;align-items:center;gap:.6rem;
  margin-top:2.4rem;
}
.navegacion--centrada{justify-content:center;flex-wrap:wrap;margin-top:2.6rem}
#atras{margin-left:auto}

.error{
  margin-top:1.4rem;padding:.85rem 1.1rem;border-radius:var(--curva);
  background:rgba(255,0,127,.1);border:1px solid rgba(255,0,127,.3);
  color:#FFC2DC;font-size:.92rem;
}
.error[hidden]{display:none}

/* ─────────── Entradas y salidas ─────────── */

@keyframes sube{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@keyframes baja{from{opacity:0;transform:translateY(-22px)}to{opacity:1;transform:none}}
.entra-abajo{animation:sube .34s cubic-bezier(.22,1,.36,1)}
.entra-arriba{animation:baja .34s cubic-bezier(.22,1,.36,1)}

/* ─────────── Repaso ─────────── */

.repaso{padding:clamp(2rem,7vw,3.4rem) 0}
.repaso[hidden]{display:none}
.repaso h2{
  font-family:var(--fh);font-weight:700;
  font-size:clamp(1.6rem,5vw,2.4rem);letter-spacing:-.02em;
}
.repaso__texto{color:var(--apagado);margin-top:.9rem;max-width:34rem}
.repaso__lista{margin-top:2.2rem;display:grid;gap:.5rem}
.repaso__fila{
  display:grid;grid-template-columns:1fr auto;gap:.2rem 1rem;align-items:start;
  padding:.95rem 1.1rem;border:1px solid var(--borde);border-radius:var(--curva);
  background:var(--cristal);
}
.repaso__fila dt{
  font-family:var(--fh);font-size:.82rem;font-weight:500;color:var(--apagado-2);
  grid-column:1;
}
.repaso__fila dd{grid-column:1;font-size:1rem;color:var(--texto);white-space:pre-wrap}
.repaso__fila--vacia dd{color:var(--apagado-2);font-style:italic}
.repaso__editar{
  grid-column:2;grid-row:1 / span 2;align-self:center;
  font-family:var(--fh);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--cian);border:1px solid var(--borde);border-radius:999px;padding:.4rem .9rem;
  transition:background var(--transicion),border-color var(--transicion);
}
.repaso__editar:hover{background:rgba(0,240,255,.1);border-color:var(--cian)}

/* ─────────── Final ─────────── */

.final{padding:clamp(3rem,9vw,5rem) 0;text-align:center}
.final[hidden]{display:none}
.final__marca{
  width:62px;height:62px;margin:0 auto 1.5rem;border-radius:50%;
  display:grid;place-items:center;font-size:1.6rem;color:#050713;background:var(--grad);
}
.final h2{font-family:var(--fh);font-weight:700;font-size:clamp(1.7rem,5vw,2.4rem);letter-spacing:-.02em}
.final p{color:var(--apagado);margin-top:1rem;max-width:34rem;margin-inline:auto}
.final__botones{display:flex;flex-wrap:wrap;gap:.8rem;justify-content:center;margin-top:2rem}

.respaldo{margin-top:2.4rem;text-align:left}
.respaldo[hidden]{display:none}
.respaldo__aviso{color:var(--apagado);margin-bottom:1rem}
.respaldo textarea{
  width:100%;background:var(--cristal);border:1px solid var(--borde);
  border-radius:var(--curva);padding:1rem;color:var(--texto);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.82rem;line-height:1.5;
}

.sin-js{
  margin:3rem 0;padding:1.6rem;border:1px solid var(--borde-vivo);
  border-radius:var(--curva);background:var(--cristal);
}
.sin-js h2{font-family:var(--fh);font-size:1.2rem;margin-bottom:.6rem}

/* ─────────── Pie ─────────── */

.pie{border-top:1px solid var(--borde);padding:1.8rem 0 2.2rem;margin-top:2rem;font-size:.84rem;color:var(--apagado-2)}
.pie strong{color:var(--apagado);font-weight:500}
.pie__legal{margin-top:.7rem;font-size:.78rem;line-height:1.5;max-width:44rem}

/* ─────────── Móvil ─────────── */

@media (max-width:560px){
  .navegacion .boton--primario{flex:1}
  .final__botones .boton,.bienvenida__botones .boton--primario{width:100%}
  .repaso__fila{grid-template-columns:1fr}
  .repaso__editar{grid-column:1;grid-row:auto;justify-self:start;margin-top:.6rem}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}