/* Diagnóstico inmersivo (lobby): una pregunta por diapositiva. Se apoya en lobby-apple.css (.lxa). */

.lxa-diag .d-stage {
  position: relative; min-height: 100svh; display: flex; align-items: center; justify-content: center;
  overflow: hidden; isolation: isolate; padding: calc(var(--lx-nav-h) + 2rem) 0 3rem;
}
.lxa-diag .d-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -3; transform: scale(1.04); filter: saturate(.9); }
.lxa-diag .d-veil {
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(90% 70% at 50% 45%, rgba(7, 13, 28, .55), rgba(7, 13, 28, .92) 75%),
    linear-gradient(180deg, rgba(7, 13, 28, .6), rgba(7, 13, 28, .35) 40%, var(--a-bg));
}

/* Barra de progreso */
.lxa-diag .d-progress { position: fixed; left: 0; right: 0; top: 0; height: 3px; z-index: 60; background: rgba(255, 255, 255, .06); }
.lxa-diag .d-progress i {
  display: block; height: 100%; width: 0; border-radius: 0 3px 3px 0;
  background: linear-gradient(90deg, rgba(0, 212, 255, .5), #00d4ff);
  box-shadow: 0 0 14px rgba(0, 212, 255, .8);
  transition: width .7s var(--a-ease);
}

/* Escenario: todas las diapositivas ocupan la misma celda */
.lxa-diag .d-form { position: relative; width: 100%; max-width: 820px; padding: 0 24px; display: grid; }
.lxa-diag .d-slide {
  grid-area: 1 / 1; align-self: center; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 0;
  transition: opacity .55s var(--a-ease), transform .7s var(--a-ease), filter .55s var(--a-ease), visibility 0s linear .7s;
  opacity: 0; visibility: hidden; filter: blur(10px); pointer-events: none;
}
.lxa-diag .d-slide[data-state="before"] { transform: translateX(-70px) scale(.98); }
.lxa-diag .d-slide[data-state="after"]  { transform: translateX(70px) scale(.98); }
.lxa-diag .d-slide[data-state="active"] {
  opacity: 1; visibility: visible; filter: none; transform: none; pointer-events: auto;
  transition-delay: .08s, .08s, .08s, 0s;
}

.lxa-diag .d-count { font: 500 .78rem/1 'JetBrains Mono', ui-monospace, Consolas, monospace; letter-spacing: .12em; color: var(--a-blue); margin-bottom: 1.4rem; }
.lxa-diag .d-title { font-size: clamp(1.9rem, 4.6vw, 3.2rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; word-spacing: .04em; max-width: 20ch; }
.lxa-diag .d-title--xl { font-size: clamp(2.2rem, 5.6vw, 4.2rem); max-width: 18ch; margin: 1.4rem 0 1.2rem; }
.lxa-diag .d-lead { margin-top: 1.1rem; max-width: 52ch; color: #c9d6ee; font-weight: 300; font-size: clamp(1rem, 1.6vw, 1.2rem); line-height: 1.6; }
.lxa-diag .d-lead--sm { margin-top: .8rem; font-size: 1rem; color: var(--a-muted); }
.lxa-diag .d-lead strong { color: #fff; font-weight: 600; }
.lxa-diag .d-chip { margin-top: .4rem; padding: .35rem .9rem; border-radius: 999px; font-size: .85rem; color: var(--a-gold); background: rgba(233, 200, 119, .1); border: 1px solid rgba(233, 200, 119, .3); }

/* Entradas: línea inferior luminosa, texto grande */
.lxa-diag .d-input { width: 100%; max-width: 640px; margin-top: 2.2rem; position: relative; }
.lxa-diag .d-input input, .lxa-diag .d-input textarea {
  width: 100%; padding: 1rem 0 .9rem; background: transparent; border: 0; border-bottom: 2px solid rgba(255, 255, 255, .22);
  color: #fff; font: 400 clamp(1.3rem, 3vw, 2rem)/1.3 var(--a-font); letter-spacing: -.02em; text-align: center; outline: none; border-radius: 0;
  transition: border-color .4s var(--a-soft);
  caret-color: var(--a-blue);
}
.lxa-diag .d-input textarea { resize: none; font-size: clamp(1.05rem, 2vw, 1.35rem); text-align: left; border: 1px solid rgba(var(--a-cy), .28); border-radius: 18px; padding: 1.1rem 1.3rem; background: rgba(10, 25, 50, .5); }
.lxa-diag .d-input input::placeholder, .lxa-diag .d-input textarea::placeholder { color: rgba(255, 255, 255, .28); font-weight: 300; }
.lxa-diag .d-input::after {                 /* destello que crece al enfocar */
  content: ''; position: absolute; left: 50%; bottom: 0; width: 0; height: 2px; transform: translateX(-50%);
  background: var(--a-blue); box-shadow: 0 0 16px 1px rgba(var(--a-cy), .9); transition: width .6s var(--a-ease); pointer-events: none;
}
.lxa-diag .d-input--area::after { display: none; }
.lxa-diag .d-input:focus-within::after { width: 100%; }
.lxa-diag .d-input--area textarea:focus { border-color: rgba(var(--a-cy), .7); box-shadow: 0 0 22px rgba(var(--a-cy), .25); }
.lxa-diag .d-input.is-shake { animation: d-shake .45s var(--a-soft); }
@keyframes d-shake { 20%, 60% { transform: translateX(-8px); } 40%, 80% { transform: translateX(8px); } }
.lxa-diag .d-error { margin-top: 1rem; color: #ff9b8f; font-size: .95rem; }

/* Opciones */
.lxa-diag .d-options { display: grid; gap: .9rem; width: 100%; margin-top: 2.4rem; }
.lxa-diag .d-options--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.lxa-diag .d-options--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.lxa-diag .d-options--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.lxa-diag .d-options--2 .d-opt:last-child:nth-child(odd) { grid-column: 1 / -1; }
.lxa-diag .d-opt {
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: .25rem; text-align: left;
  padding: 1.5rem 1.4rem 1.4rem; min-height: 104px; cursor: pointer; color: var(--a-text); font-family: var(--a-font);
}
.lxa-diag .d-opt b { font-size: 1.12rem; font-weight: 600; letter-spacing: -.02em; line-height: 1.25; }
.lxa-diag .d-opt span { font-size: .88rem; font-weight: 300; color: var(--a-muted); }
.lxa-diag .d-opt kbd { position: absolute; top: .8rem; right: .9rem; }
.lxa-diag kbd {
  display: inline-block; padding: .12rem .45rem; border-radius: 6px; font: 500 .72rem/1.2 'JetBrains Mono', ui-monospace, Consolas, monospace;
  color: var(--a-muted); background: rgba(255, 255, 255, .07); border: 1px solid var(--a-line);
}
.lxa-diag .d-opt.is-sel {
  border-color: var(--a-blue); transform: translateY(-4px) scale(1.02);
  background: linear-gradient(0deg, rgba(var(--a-cy), .5), rgba(30, 107, 255, .2) 55%, transparent), rgba(10, 25, 50, .8);
  box-shadow: 0 0 34px rgba(var(--a-cy), .55), inset 0 -22px 34px -18px rgba(var(--a-cy), .6);
}
.lxa-diag .d-opt.is-sel kbd { color: #031422; background: var(--a-blue); border-color: var(--a-blue); }

/* Acciones */
.lxa-diag .d-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: .9rem 1.2rem; margin-top: 2.4rem; }
.lxa-diag .d-back, .lxa-diag .d-skip {
  display: inline-flex; align-items: center; gap: .5rem; padding: .8rem 1.2rem; border-radius: 999px; font-size: .95rem; font-weight: 500; color: var(--a-muted);
  transition: color .3s, background-color .3s, transform .5s var(--a-ease);
}
.lxa-diag .d-back:hover, .lxa-diag .d-skip:hover { color: #fff; background: rgba(255, 255, 255, .08); }
.lxa-diag .d-back:hover .a-i { transform: translateX(-3px); }
.lxa-diag .d-back .a-i, .lxa-diag .d-back:hover .a-i { color: inherit; filter: none; }
.lxa-diag .d-skip { font-size: .88rem; text-decoration: underline; text-underline-offset: 4px; text-decoration-color: rgba(255, 255, 255, .2); }
.lxa-diag .d-hint { margin-top: 1.4rem; font-size: .82rem; font-weight: 300; color: var(--a-dim); }
.lxa-diag .a-btn.is-loading { opacity: .7; cursor: progress; }

/* Gracias */
.lxa-diag .d-check { width: 92px; height: 92px; margin-bottom: .4rem; filter: drop-shadow(0 0 18px rgba(var(--a-cy), .7)); }
.lxa-diag .d-check circle { fill: none; stroke: rgba(var(--a-cy), .35); stroke-width: 2; }
.lxa-diag .d-check path { fill: none; stroke: var(--a-blue); stroke-width: 3.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 48; stroke-dashoffset: 48; }
.lxa-diag .d-slide.is-celebrate .d-check path { animation: d-draw .9s .35s var(--a-ease) forwards; }
.lxa-diag .d-slide.is-celebrate .d-check circle { animation: d-pop .8s var(--a-ease) both; transform-origin: 50% 50%; }
@keyframes d-draw { to { stroke-dashoffset: 0; } }
@keyframes d-pop { from { transform: scale(.6); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* Móvil */
@media (max-width: 860px) {
  .lxa-diag .d-options--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lxa-diag .d-options--3 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .lxa-diag .d-options--2 { grid-template-columns: 1fr; }
  .lxa-diag .d-stage { align-items: flex-start; padding-top: calc(var(--lx-nav-h) + 3.2rem); }
  .lxa-diag .d-opt { min-height: 84px; padding: 1.2rem 1.1rem; }
  .lxa-diag .d-actions .a-btn { width: 100%; }
  .lxa-diag .d-hint kbd { display: none; }
  .lxa-diag .d-form { padding: 0 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .lxa-diag .d-slide, .lxa-diag .d-slide[data-state] { transition-duration: .01ms !important; filter: none !important; }
}

/* Formulario inmersivo de Marketing incrustado (iframe a la misma plataforma) */
.lxa-diag .d-embed { display: block; width: 100%; max-width: 960px; height: min(780px, calc(100svh - var(--lx-nav-h) - 3rem)); min-height: 560px; border: 0; background: transparent; color-scheme: normal; }

/* Fondo propio del formulario de Marketing: reemplaza el video del lobby */
.lxa-diag .d-bgimg { position: absolute; inset: 0; z-index: -3; background-size: cover; background-position: center; }
.lxa-diag .d-veil--img { background: linear-gradient(180deg, rgba(0, 0, 0, .45), rgba(0, 0, 0, .55)); }
.lxa-diag .d-veil--claro { background: linear-gradient(180deg, rgba(255, 255, 255, .55), rgba(255, 255, 255, .7)); }