/* Encuesta pública: línea de metro, preguntas, opciones, escalas, navegación y sección ALL-IS BIM. */

.pantalla-enc { min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; background: var(--paper); }

/* ---------- línea de metro (progreso): una estación por sección ---------- */
.metro { background: #fff; border-bottom: 1px solid var(--line); }
.metro-in { max-width: 1120px; margin: 0 auto; padding: 18px 24px 16px; }
.metro ol { position: relative; display: grid; grid-template-columns: repeat(var(--n, 6), minmax(0, 1fr)); }
.metro ol::before, .metro ol::after {
  content: ""; position: absolute; top: 9px; height: 4px; border-radius: 4px;
  left: calc(50% / var(--n, 6));
}
.metro ol::before { right: calc(50% / var(--n, 6)); background: var(--line); }
.metro ol::after { width: calc((100% - 100% / var(--n, 6)) * var(--avance, 0)); background: var(--navy); transition: width .45s cubic-bezier(.2, .7, .2, 1); }
.metro li { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; min-width: 0; }
.metro .parada {
  width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 4px solid var(--line-strong); box-shadow: 0 0 0 4px #fff;
  transition: border-color .3s, background .3s;
}
.metro li.hecho .parada { border-color: var(--navy); }
.metro li.actual .parada { border-color: var(--green); background: var(--green); box-shadow: 0 0 0 4px #fff, 0 0 0 9px rgba(107, 170, 46, .22); }
.metro .nombre { font-size: 12.5px; line-height: 1.25; color: var(--slate); padding: 0 4px; overflow-wrap: anywhere; }
.metro li.hecho .nombre { color: var(--navy); }
.metro li.actual .nombre { color: var(--ink); font-weight: 600; }
.metro-texto { display: none; }

/* ---------- formulario de cada sección ---------- */
.enc-form { flex: 1; display: flex; flex-direction: column; }
.enc-zona { flex: 1; }
.enc-main { max-width: 780px; margin: 0 auto; padding: 48px 24px 56px; }
.sec-intro { font-size: 19px; line-height: 1.5; color: var(--slate); max-width: 60ch; margin-bottom: 36px; }

.q { border: 0; margin: 0 0 52px; padding: 0; min-width: 0; }
.q:last-of-type { margin-bottom: 8px; }
.q-cab { display: block; padding: 0; margin: 0; }
.q-titulo {
  display: block; font-family: var(--display); font-weight: 650; font-size: clamp(24px, 3.1vw, 32px);
  line-height: 1.16; letter-spacing: -.02em; color: var(--ink); text-wrap: balance;
}
.q-req { display: block; margin-top: 8px; font-size: 13.5px; color: var(--slate); }
.q-ayuda { margin-top: 4px; font-size: 15.5px; color: var(--slate); }
.q-teclado { display: none; }
@media (hover: hover) and (pointer: fine) { .q-teclado { display: block; font-size: 13.5px; } }
.q-cuerpo { margin-top: 20px; }
.q-error {
  display: flex; align-items: flex-start; gap: 8px; margin-top: 14px; padding: 10px 14px; border-radius: 10px;
  background: var(--error-soft); color: var(--error); font-size: 15px; font-weight: 600;
}
.q-error::before { content: "!"; flex: none; display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: var(--error); color: #fff; font-size: 13px; line-height: 1; margin-top: 1px; }

/* ---------- opciones en baldosas ---------- */
.opciones { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 10px; }
.op {
  position: relative; display: flex; align-items: flex-start; gap: 14px; min-height: 58px; padding: 16px 18px;
  background: #fff; border: 1.5px solid var(--line); border-radius: var(--radius); cursor: pointer;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.op:hover { border-color: var(--line-strong); }
.op input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; }
.op-marca {
  flex: none; position: relative; width: 22px; height: 22px; margin-top: 1px; border-radius: 50%;
  border: 2px solid var(--line-strong); background: #fff; transition: border-color .15s, background .15s;
}
.op--multi .op-marca { border-radius: 6px; }
.op-texto { font-size: 16.5px; line-height: 1.4; }
.op.sel { border-color: var(--navy); background: var(--navy-tint); box-shadow: inset 0 0 0 1px var(--navy); }
.op.sel .op-marca { border-color: var(--navy); background: var(--navy); }
.op.sel .op-marca::after { content: ""; position: absolute; inset: 0; margin: auto; width: 8px; height: 8px; border-radius: 50%; background: #fff; }
.op--multi.sel .op-marca::after { width: 6px; height: 11px; border-radius: 0; background: none; border: solid #fff; border-width: 0 2.5px 2.5px 0; transform: translateY(-1px) rotate(45deg); }
.op:has(input:focus-visible) { outline: 3px solid var(--navy); outline-offset: 2px; }
.op input:focus-visible + .op-marca { outline: 3px solid var(--navy); outline-offset: 3px; }
.op:has(input:disabled) { opacity: .45; cursor: not-allowed; }
.opciones--grandes { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 14px; }
.opciones--grandes .op { min-height: 96px; padding: 22px 22px; align-items: center; }
.opciones--grandes .op-texto { font-family: var(--display); font-size: 21px; font-weight: 600; letter-spacing: -.01em; line-height: 1.2; }
.contador { margin-top: 10px; font-size: 14px; color: var(--slate); }
.otro-texto { margin-top: 10px; max-width: 560px; }
.q.con-error .op:not(.sel) { border-color: #e7b7b1; }

/* ---------- escala 1–5 ---------- */
.escala { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; max-width: 520px; }
.escala-op { position: relative; display: block; }
.escala-op input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; }
.escala-op .num {
  display: grid; place-items: center; height: 64px; border: 1.5px solid var(--line); border-radius: var(--radius); background: #fff;
  font-family: var(--display); font-size: 24px; font-weight: 650; color: var(--navy); cursor: pointer;
  transition: border-color .15s, background .15s, color .15s;
}
.escala-op:hover .num { border-color: var(--navy); }
.escala-op input:checked + .num { background: var(--navy); border-color: var(--navy); color: #fff; }
.escala-op input:focus-visible + .num { outline: 3px solid var(--navy); outline-offset: 2px; }
.escala-extremos { display: flex; justify-content: space-between; gap: 12px; max-width: 520px; margin-top: 10px; font-size: 13.5px; color: var(--slate); }
.escala-elegido { min-height: 1.5em; margin-top: 6px; font-weight: 600; color: var(--navy); }
.q.con-error .escala-op input:not(:checked) + .num { border-color: #e7b7b1; }

/* ---------- tabla de valoración (matriz) ---------- */
.matriz-leyenda { font-size: 14px; color: var(--slate); margin-bottom: 8px; }
.matriz { border-top: 1px solid var(--line); }
.fila {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 340px); gap: 10px 28px; align-items: center;
  padding: 16px 0; border-bottom: 1px solid var(--line);
}
.fila-nombre { font-size: 17px; font-weight: 600; line-height: 1.35; }
.fila .escala { gap: 6px; }
.fila .escala-op .num { height: 48px; font-size: 19px; }
.fila .escala-elegido { margin-top: 4px; font-size: 14px; min-height: 1.3em; }
.fila.sin-responder .fila-nombre { color: var(--error); }
.fila.sin-responder .fila-nombre::after { content: " ·"; }

/* ---------- navegación inferior ---------- */
.nav { position: sticky; bottom: 0; z-index: 5; background: rgba(246, 247, 249, .94); border-top: 1px solid var(--line); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.nav-in { max-width: 780px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; gap: 16px; }
.nav-aviso { flex: 1; font-size: 14.5px; font-weight: 600; color: var(--error); }
.nav-in .btn-primario { min-width: 168px; }

/* ---------- ALL-IS BIM: sección final diferenciada ---------- */
.enc-form--oscuro .enc-zona { background: radial-gradient(900px 520px at 85% 0%, rgba(27, 42, 107, .9), transparent 60%), var(--navy-ink); color: #fff; }
.enc-form--oscuro .nav { background: rgba(12, 20, 57, .96); border-top-color: rgba(255, 255, 255, .12); }
.enc-form--oscuro .btn-texto { color: #fff; }
.enc-form--oscuro .nav-aviso { color: #ffb4a9; }
.allis-marca { font-family: var(--display); font-weight: 800; font-size: 22px; letter-spacing: -.01em; color: var(--green-light); }
.allis-titulo { font-family: var(--display); font-weight: 700; font-size: clamp(30px, 4.4vw, 46px); line-height: 1.06; letter-spacing: -.025em; text-wrap: balance; margin: 10px 0 18px; }
.allis-titulo:focus { outline: none; }
.allis-intro { font-size: 18.5px; line-height: 1.55; color: rgba(255, 255, 255, .82); max-width: 62ch; }
.pila { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 32px 0 48px; }
.pieza { display: flex; flex-direction: column; gap: 12px; padding: 18px 20px; border-radius: var(--radius); background: #fff; color: var(--ink); }
.pieza img { height: 42px; width: auto; align-self: flex-start; }
.pieza span { font-size: 15.5px; line-height: 1.4; color: var(--slate); }
.pieza--base { grid-column: 1 / -1; flex-direction: row; align-items: baseline; flex-wrap: wrap; gap: 4px 14px; background: var(--green-soft); }
.pieza--base b { font-family: var(--display); font-size: 21px; font-weight: 800; letter-spacing: -.01em; color: var(--navy); }
.pieza--base span { color: var(--navy-deep); }
.enc-form--oscuro .q-titulo { color: #fff; }
.enc-form--oscuro .q-req, .enc-form--oscuro .q-ayuda { color: rgba(255, 255, 255, .68); }
.enc-form--oscuro .op { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .24); color: #fff; }
.enc-form--oscuro .op:hover { border-color: rgba(255, 255, 255, .5); }
.enc-form--oscuro .op-marca { background: transparent; border-color: rgba(255, 255, 255, .55); }
.enc-form--oscuro .op.sel { background: rgba(255, 255, 255, .13); border-color: #fff; box-shadow: inset 0 0 0 1px #fff; }
.enc-form--oscuro .op.sel .op-marca { background: #fff; border-color: #fff; }
.enc-form--oscuro .op.sel .op-marca::after { background: var(--navy); }
.enc-form--oscuro .op:has(input:focus-visible) { outline-color: var(--green-light); }
.allis-cta { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; margin-top: 4px; }
.allis-cta .nota { max-width: 58ch; font-size: 14.5px; line-height: 1.55; color: rgba(255, 255, 255, .74); }
.allis-opcional { margin-top: 36px; font-size: 13.5px; color: rgba(255, 255, 255, .6); }

/* ---------- portada: código de invitación ---------- */
.codigo-form { max-width: 520px; margin-top: 8px; }
.codigo-etiqueta { display: block; font-weight: 600; margin-bottom: 8px; }
.codigo-fila { display: flex; gap: 10px; }
.campo-codigo { font-family: var(--mono); font-size: 19px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink); }
.codigo-ayuda { margin-top: 8px; font-size: 14px; color: rgba(255, 255, 255, .7); }

/* ---------- móvil ---------- */
@media (max-width: 860px) {
  .metro-in { padding: 14px 16px 12px; }
  .metro ol::before, .metro ol::after { top: 5px; height: 3px; }
  .metro .parada { width: 13px; height: 13px; border-width: 3px; box-shadow: 0 0 0 3px #fff; }
  .metro li.actual .parada { box-shadow: 0 0 0 3px #fff, 0 0 0 6px rgba(107, 170, 46, .25); }
  .metro .nombre { display: none; }
  .metro-texto { display: flex; justify-content: space-between; gap: 12px; margin-top: 12px; font-size: 14px; }
  .metro-paso { font-family: var(--mono); font-size: 13px; color: var(--slate); }
  .metro-nombre { font-weight: 600; color: var(--ink); text-align: right; }
}
@media (max-width: 640px) {
  .enc-main { padding: 32px 16px 40px; }
  .q { margin-bottom: 40px; }
  .fila { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .nav-in { padding: 12px 16px; gap: 10px; flex-wrap: wrap; }
  .nav-aviso { order: -1; flex-basis: 100%; }
  .nav-aviso:empty { display: none; }
  .nav-in .btn-primario { flex: 1; min-width: 0; }
  .pila { grid-template-columns: 1fr; }
  .codigo-fila { flex-direction: column; }
  .escala-op .num { height: 56px; font-size: 21px; }
}