/* Layout para mantener footer al fondo */
html, body.brief-page {height:100%;}
body.brief-page {
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

/* Main ocupa el espacio flexible; quitamos el flex interno agresivo del form */
body.brief-page > main {
  flex:1 0 auto;
  display:block;
}

/* Antes el form era flex y se pegaba; lo revertimos */
body.brief-page form.brief {
  flex:0 0 auto;
  display:block;
}

body.brief-page .site-footer {margin-top:auto;}

/* Altura estable para evitar “saltos” entre pasos cortos/largos */
form.brief {
  background:rgba(255,255,255,.04);
  padding:2rem 1.6rem 2.6rem;
  border:1px solid rgba(255,255,255,.08);
  border-radius:12px;
  max-width:980px;
  margin:0 auto 2.2rem;
  position:relative;
  min-height:560px;              /* altura base estable */
  box-sizing:border-box;
}

/* Contenedor virtual de pasos (usa el propio form) */
form.brief fieldset.active {
  min-height:420px;              /* zona visual consistente */
}

/* Ajustes generales previos (sin cambios funcionales) */
main {padding-top:5.2rem;}
h1 {text-align:center;margin:.2rem 0 1.8rem;}

fieldset {
  border:1px solid rgba(255,255,255,.15);
  padding:1.2rem 1rem 1.6rem;
  margin:0 0 1.6rem;
  border-radius:10px;
  position:relative;
  display:none;
  background:rgba(255,255,255,.02);
  backdrop-filter:blur(2px);
  width:100%;
  box-sizing:border-box;
}

fieldset.active {display:block;}

fieldset legend {
  padding:0 .6rem;
  font-size:.85rem;
  letter-spacing:.8px;
  text-transform:uppercase;
  font-weight:600;
  color:var(--c-accent);
}

.q {margin:0 0 1rem;}
.q label.qt {display:block;font-weight:600;margin:0 0 .35rem;font-size:.9rem;}

.opt-group {display:flex;flex-wrap:wrap;gap:.8rem;margin:.2rem 0 .4rem;}
.opt-group label {
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  font-size:.8rem;
  background:rgba(255,255,255,.07);
  padding:.5rem .75rem;
  border-radius:40px;
  cursor:pointer;
  border:1px solid rgba(255,255,255,.15);
  transition:var(--transition);
  position:relative;
}
.opt-group input {display:none;}
.opt-group input:checked + span {
  background:linear-gradient(90deg,var(--c-accent),var(--c-accent-alt));
  color:#04202d;
  font-weight:600;
  border-color:transparent;
}

textarea,
input[type="text"],
input[type="tel"],
input[type="email"] {
  width:100%;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.2);
  color:var(--c-text);
  padding:.7rem .8rem;
  border-radius:6px;
  font:inherit;
  line-height:1.35;
  box-sizing:border-box;
}
textarea:focus, input:focus {outline:2px solid var(--c-accent);}

.conditional {
  display:none;
  margin-top:.5rem;
  padding:.6rem .7rem .8rem;
  background:rgba(255,255,255,.05);
  border:1px dashed rgba(255,255,255,.25);
  border-radius:8px;
}

.note {font-size:.65rem;opacity:.6;margin-top:.3rem;}
.divider {height:2px;background:linear-gradient(90deg,transparent,var(--c-accent),transparent);margin:2.2rem 0 1.8rem;opacity:.4;}
.compact {font-size:.75rem;opacity:.7;line-height:1.3;}
.tag {
  display:inline-block;
  font-size:.6rem;
  letter-spacing:1px;
  text-transform:uppercase;
  background:var(--c-accent);
  color:#04202d;
  padding:.25rem .5rem;
  border-radius:4px;
  margin-left:.4rem;
  font-weight:600;
}

.wizard-actions {
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
  align-items:center;
  margin-top:1.2rem;
}

.steps-progress {margin:0 0 1.8rem;}
.steps-progress ol {
  list-style:none;
  display:grid;
  gap:.4rem;
  grid-template-columns:repeat(auto-fit,minmax(120px,1fr));
  padding:0;
  margin:0 0 .7rem;
}
.steps-progress li {
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  padding:.55rem .6rem;
  border-radius:8px;
  font-size:.62rem;
  letter-spacing:.5px;
  text-transform:uppercase;
  display:flex;
  flex-direction:column;
  gap:.25rem;
  align-items:flex-start;
  position:relative;
  min-height:54px;
  transition:var(--transition);
}
.steps-progress li.active {border-color:var(--c-accent);background:rgba(18,203,196,.15);}
.steps-progress li.completed {opacity:.55;}
.steps-progress li span.step-index {
  display:inline-block;
  background:var(--c-accent);
  color:#04202d;
  font-weight:700;
  font-size:.55rem;
  padding:.2rem .4rem;
  border-radius:4px;
}
.steps-progress .bar {height:6px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden;position:relative;}
.steps-progress .bar span {display:block;height:100%;width:0;background:linear-gradient(90deg,var(--c-accent),var(--c-accent-alt));transition:.4s;}
#autoSaveMsg {font-size:.55rem;text-align:center;opacity:.6;margin-top:.4rem;transition:.4s;}

/* Override refinado */
.opt-group label {background:none;padding:0;border:none;}
.opt-group label span {
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  font-size:.8rem;
  background:rgba(255,255,255,.07);
  padding:.5rem .85rem;
  border-radius:40px;
  cursor:pointer;
  border:1px solid rgba(255,255,255,.15);
  transition:var(--transition);
  line-height:1.1;
}
.opt-group label:hover span {border-color:rgba(255,255,255,.35);transform:translateY(-2px);}
.opt-group input:checked + span {
  background:linear-gradient(90deg,var(--c-accent),var(--c-accent-alt));
  color:#04202d;
  font-weight:600;
  border-color:transparent;
  box-shadow:0 4px 10px -3px rgba(0,0,0,.45);
  transform:translateY(-2px);
}
.opt-group input:focus-visible + span {outline:2px solid var(--c-accent);outline-offset:2px;}

/* Mobile */
@media (max-width:640px) {
  /* Eliminar gradiente complejo del body en brief móvil */
  body.brief-page {
    background: var(--c-bg); /* color sólido en lugar del gradiente */
  }
  
  form.brief {
    padding:1.7rem 1.1rem 2rem;
    min-height:480px; /* reducir altura mínima */
    background:rgba(255,255,255,.03); /* fondo más sutil */
  }
  
  fieldset {
    padding:1rem .85rem 1.3rem;
    background:transparent; /* quitar fondo del fieldset */
  }
  
  form.brief fieldset.active {
    min-height:350px; /* reducir altura para evitar espacios vacíos */
  }
  
  .steps-progress li {min-height:60px;}
  
  /* Asegurar que no hay fondos conflictivos */
  main {
    background:transparent;
  }
}