/* LEX83 · Configurador — layout editorial (Dirección Artística §10). */
.cfg { display: grid; grid-template-columns: 220px minmax(0, 1fr) 300px; gap: clamp(1.5rem, 3vw, 3rem); align-items: start; }
.cfg__steps { position: sticky; top: calc(var(--header-h) + 24px); }
.cfg__steps ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.1rem; }
.cfg__step { display: flex; align-items: center; gap: 0.75rem; width: 100%; text-align: left; padding: 0.55rem 0.5rem; border-radius: var(--radius-sm); color: var(--muted-2); font-size: var(--step--1); background: none; border: 0; cursor: default; }
.cfg__step .n { font-variant-numeric: tabular-nums; font-weight: 600; min-width: 1.6rem; }
.cfg__step.is-done { color: var(--ink); cursor: pointer; }
.cfg__step.is-done:hover { background: var(--paper-2); }
.cfg__step.is-done .n { color: var(--ink); }
.cfg__step.is-current { color: var(--ink); font-weight: 500; }
.cfg__step.is-current .n { color: var(--lex-red); }

.cfg__count { display: flex; align-items: baseline; gap: 0.4rem; font-variant-numeric: tabular-nums; }
.cfg__count b { font-size: var(--step-3); color: var(--lex-red); letter-spacing: -0.03em; line-height: 1; }
.cfg__count span { color: var(--muted-2); font-size: var(--step-1); }
.cfg__count em { font-style: normal; margin-left: 0.75rem; font-size: var(--step--1); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.cfg__progress { height: 2px; background: var(--paper-3); margin: 1rem 0 clamp(1.75rem, 4vw, 2.75rem); }
.cfg__progress i { display: block; height: 100%; background: var(--lex-red); transition: width var(--duration-base) var(--ease-out); }

.cfg__q { font-size: var(--step-4); letter-spacing: -0.03em; line-height: 1.05; margin-bottom: clamp(1.5rem, 3vw, 2.25rem); outline: none; max-width: 20ch; }
.cfg__actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: clamp(1.75rem, 4vw, 2.5rem); padding-top: 1.5rem; border-top: 1px solid var(--line); }
.cfg__actions .btn--primary:hover, .cfg__actions .btn--primary:focus-visible { background: var(--lex-red); border-color: var(--lex-red); }

/* Transición entre pasos: salida y entrada lateral suave (nunca marea). */
.cfg__screen { transition: opacity 180ms var(--ease), transform 180ms var(--ease); }
.cfg__screen.is-leave-fwd { opacity: 0; transform: translateX(-16px); }
.cfg__screen.is-leave-back { opacity: 0; transform: translateX(16px); }
.cfg__screen.is-enter-fwd { animation: cfgInFwd var(--duration-base) var(--ease-out); }
.cfg__screen.is-enter-back { animation: cfgInBack var(--duration-base) var(--ease-out); }
@keyframes cfgInFwd { from { opacity: 0; transform: translateX(22px); } to { opacity: 1; transform: none; } }
@keyframes cfgInBack { from { opacity: 0; transform: translateX(-22px); } to { opacity: 1; transform: none; } }

/* Respuestas: controles minimalistas, estado activo en rojo. */
.cfg .choice-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.cfg .choice-grid--lg { grid-template-columns: 1fr; }
.cfg .choice-grid--lg .choice { padding: 1.25rem 1.4rem; }
.cfg .choice-grid--lg .choice__title { font-size: var(--step-1); }
.cfg .choice { font: inherit; color: inherit; text-align: left; background: var(--surface); width: 100%; position: relative; border-radius: var(--radius-sm); }
.cfg .choice:focus-visible { outline: 2px solid var(--lex-red); outline-offset: 2px; }
.cfg .choice.is-selected { background: var(--surface); border-color: var(--lex-red); box-shadow: inset 3px 0 0 var(--lex-red); }
.cfg .choice.is-selected .choice__title::after { content: "✓"; color: var(--lex-red); font-weight: 600; }
.cfg .choice__price { color: var(--ink); font-variant-numeric: tabular-nums; }
.cfg-opt { display: grid; gap: 0.5rem; }
.cfg-qty { display: flex; align-items: center; gap: 0.5rem; font-size: var(--step--1); color: var(--muted); padding-left: 1.1rem; }
.cfg-qty input { width: 80px; padding: 0.4rem 0.6rem; border: 1px solid var(--line-strong); border-radius: 6px; font: inherit; }
.cfg-fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.cfg-legend { font-size: var(--step-2); font-weight: 600; letter-spacing: -0.02em; margin-bottom: 1rem; padding: 0; }
.cfg-link { background: none; border: 0; padding: 0; color: var(--ink); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font: inherit; }
.cfg .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem 1.25rem; }
.cfg .error-msg { color: var(--error); font-size: var(--step--1); }
.cfg .field .error-msg { display: none; }
.cfg .field.is-invalid .error-msg { display: block; }

/* Resumen sticky (desktop) — se actualiza sin parecer una hoja de cálculo. */
.cfg__sum { position: sticky; top: calc(var(--header-h) + 24px); }
.cfg-sum { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.cfg-sum__head { list-style: none; display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 1rem 1.2rem; cursor: pointer; font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.cfg-sum__head::-webkit-details-marker { display: none; }
.cfg-sum__head strong { font-size: var(--step-1); color: var(--ink); letter-spacing: -0.02em; text-transform: none; }
.cfg-sum[open] .cfg-sum__head strong { display: none; }
.cfg-sum__body { padding: 0 1.2rem 1.2rem; }
.cfg-sum .summary-line { font-size: var(--step--1); }
.cfg-sum .summary-line.total { font-size: var(--step-0); flex-wrap: wrap; }
.cfg-sum .summary-line.total .mono { font-size: var(--step-1); }
.cfg-sum__total { transition: color var(--duration-fast) var(--ease); }
.cfg-review .summary-line { font-size: var(--step-0); }
.cfg-review .summary-line.total { font-size: var(--step-2); }

@media (max-width: 1024px) {
  .cfg { grid-template-columns: 1fr; }
  .cfg__steps { display: none; }
  .cfg__sum { position: sticky; bottom: 0; top: auto; z-index: 5; order: 3; margin-inline: calc(var(--gutter) * -1); }
  .cfg-sum { border-radius: 0; border-inline: 0; border-bottom: 0; box-shadow: 0 -10px 30px -18px rgba(10,10,11,.35); }
  .cfg-sum__body { max-height: 45vh; overflow: auto; }
  .cfg-sum[open] .cfg-sum__head strong { display: inline; }
}
@media (max-width: 640px) {
  .cfg .form-grid { grid-template-columns: 1fr; }
  .cfg__q { font-size: var(--step-3); }
}
@media (prefers-reduced-motion: reduce) {
  .cfg__screen, .cfg__screen[class*="is-"] { animation: none !important; transition: none !important; opacity: 1 !important; transform: none !important; }
}

/* Presupuesto imprimible */
@media print {
  .quote-view .quote-next, .site-header, .site-footer, .mobile-nav { display: none !important; }
  .quote-view .panel { border: 0; padding: 0; }
}