/* Laboratorio de variograma · app propia, estilo Distill claro (no usa el tema oscuro de la landing).
   Colores con significado fijo: naranja = pares (lo que se calcula) · verde azulado = tu modelo ·
   rosa = modelo real · violeta = intento anterior · tinta = puntos experimentales. */
:root {
  --fondo: #FBFAF7;
  --tarjeta: #FFFFFF;
  --tinta: #1F2328;
  --gris: #6B7280;
  --gris-2: #9AA0AA;
  --linea: #ECE8E1;
  --suave: #F4F1EC;
  --par: #E0701F;
  --modelo: #0F8B7E;
  --real: #D9507E;
  --prev: #7B4FD6;
  --sombra: 0 1px 2px rgba(31, 35, 40, .05), 0 10px 30px rgba(31, 35, 40, .07);
  --serif: "Source Serif 4", Georgia, serif;
  --sans: Inter, "Segoe UI", Arial, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--sans); color: var(--tinta); -webkit-font-smoothing: antialiased;
  background-color: var(--fondo);
}
/* Curvas de nivel estáticas detrás de todo (fondo-curvas.js) */
.fondo-curvas { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: -1; pointer-events: none; }
a { color: inherit; }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 2.5px solid var(--modelo); outline-offset: 3px; border-radius: 6px; }
.c-par { color: var(--par); }
.c-modelo { color: var(--modelo); }

/* Barra superior */
.barra { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 18px; height: 64px; padding: 0 26px; background: #1B1A21; box-shadow: 0 1px 0 rgba(255, 255, 255, .04), 0 6px 18px rgba(27, 26, 33, .12); }
.marca { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-size: 18px; color: #C1BBCD; }
.marca b { color: #FBFAF7; font-weight: 600; }
.marca svg { width: 26px; height: 26px; }
.barra-app { font-family: var(--serif); font-size: 18px; font-weight: 600; color: #E6E2EC; padding-left: 18px; border-left: 1px solid rgba(255, 255, 255, .14); }
.barra-app em { font-family: var(--sans); font-style: normal; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #fff; background: var(--modelo); border-radius: 999px; padding: 3px 8px; margin-left: 8px; vertical-align: 3px; }
.volver { margin-left: auto; font-size: 14px; color: #C9C5D1; text-decoration: none; padding: 7px 12px; border-radius: 9px; }
.volver:hover { background: rgba(255, 255, 255, .08); color: #fff; }
.language-switch { display: flex; flex-shrink: 0; gap: 3px; padding: 3px; border: 1px solid #514B5D; border-radius: 9px; }
.language-switch button { border: 0; border-radius: 6px; padding: 5px 7px; background: transparent; color: #C9C5D1; font-size: 12px; cursor: pointer; }
.language-switch button[aria-pressed="true"] { background: #FBFAF7; color: #1B1A21; }
.language-status { margin: 0; padding: 10px 20px; color: #9A3412; }
.language-loading main, .language-loading footer { visibility: hidden; }

/* Diseño de la app: riel | parámetros | mapa | variograma */
.app { display: grid; grid-template-columns: 76px 300px minmax(0, 1.05fr) minmax(0, 1fr); gap: 16px; padding: 16px 20px 18px 12px; max-width: 1760px; margin: 0 auto; align-items: start; }
.tarjeta { background: var(--tarjeta); border-radius: 18px; box-shadow: var(--sombra); margin: 0; }
.t-cab { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 16px 8px; flex-wrap: wrap; }
.t-titulo { font-family: var(--serif); font-size: 17px; font-weight: 600; }

/* Riel de pestañas */
.riel { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 6px; background: var(--tarjeta); border-radius: 18px; box-shadow: var(--sombra); padding: 8px 6px; }
.riel-btn { display: flex; flex-direction: column; align-items: center; gap: 5px; border: 0; background: transparent; border-radius: 12px; padding: 10px 2px 8px; cursor: pointer; color: var(--gris); font-size: 11.5px; font-weight: 500; transition: background .15s, color .15s; }
.riel-btn { position: relative; }
.riel-btn svg { width: 24px; height: 24px; fill: var(--acc); stroke: var(--acc); transition: transform .2s; }
.riel-btn:hover { background: color-mix(in srgb, var(--acc) 8%, #fff); color: var(--acc); }
.riel-btn:hover svg { transform: scale(1.08); }
.riel-btn[aria-selected="true"] { background: color-mix(in srgb, var(--acc) 14%, #fff); color: var(--acc); font-weight: 700; }
.riel-btn[aria-selected="true"]::before { content: ""; position: absolute; left: -6px; top: 10px; bottom: 10px; width: 4px; border-radius: 0 4px 4px 0; background: var(--acc); }
.t-gris { color: var(--gris); font-weight: 400; }

/* Columna de parámetros */
.col-param { display: flex; flex-direction: column; gap: 16px; }
.parametros { padding: 16px; min-height: 300px; }
.panel h2 { font-family: var(--serif); font-size: 20px; font-weight: 600; margin: 0 0 4px; }
.sub { margin: 0 0 12px; font-size: 13.5px; color: var(--gris); line-height: 1.45; }
.fichas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.ficha { border: 0; background: var(--suave); border-radius: 12px; padding: 8px 6px 7px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 4px; transition: transform .15s, background .15s, box-shadow .15s; }
.ficha svg { width: 100%; height: 46px; }
.ficha b { font-size: 15px; font-variant-numeric: tabular-nums; }
.ficha small { font-size: 11px; color: var(--gris); }
.ficha:hover { background: #ECE7DF; transform: translateY(-1px); }
#fichas-n { --acc: #3B7DD8; } #fichas-paso { --acc: #E0701F; } #fichas-tipo { --acc: #0F8B7E; }
.ficha[aria-pressed="true"] { background: color-mix(in srgb, var(--acc) 13%, #fff); color: var(--acc); box-shadow: inset 0 0 0 2px var(--acc), 0 6px 16px color-mix(in srgb, var(--acc) 22%, transparent); }
.ficha[aria-pressed="true"] small { color: var(--acc); opacity: .8; }
.fichas-modelo { margin-bottom: 10px; }
.fila { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.btn, .btn-sec { border: 0; border-radius: 10px; padding: 9px 14px; font-size: 14px; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.btn { background: var(--modelo); color: #fff; }
.btn:hover { filter: brightness(1.08); }
.btn-sec { background: var(--suave); color: var(--tinta); }
.btn-sec:hover { background: #ECE7DF; }
.desliz { margin: 8px 0; }
.desliz label { display: flex; justify-content: space-between; font-size: 13.5px; color: var(--gris); }
.desliz output { color: var(--tinta); font-weight: 600; font-variant-numeric: tabular-nums; }
input[type="range"] { width: 100%; accent-color: var(--modelo); }
.ajuste { display: grid; grid-template-columns: 1fr auto; gap: 4px 8px; margin-top: 10px; font-size: 12.5px; color: var(--gris); }
.ajuste b { color: var(--tinta); font-variant-numeric: tabular-nums; }
.barra-ajuste { grid-column: 1 / -1; height: 7px; border-radius: 5px; background: var(--suave); overflow: hidden; }
.barra-ajuste i { display: block; height: 100%; width: 0; border-radius: 5px; background: linear-gradient(90deg, var(--par), var(--modelo)); transition: width .35s; }
.interruptor { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--gris); cursor: pointer; user-select: none; }
.interruptor input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.interruptor span { width: 32px; height: 18px; border-radius: 999px; background: #DCD7CF; position: relative; transition: background .2s; flex-shrink: 0; }
.interruptor span::after { content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, .2); transition: transform .2s; }
.interruptor input:checked + span { background: var(--modelo); }
.interruptor input:checked + span::after { transform: translateX(14px); }
.interruptor input:focus-visible + span { outline: 2.5px solid var(--modelo); outline-offset: 2px; }
.interruptor.chico { font-size: 12.5px; }
.formulas p { font-size: 14px; line-height: 1.55; color: #3a3f46; margin: 0 0 10px; }
.ec { font-family: var(--serif); font-size: 18px; text-align: center; margin: 12px 0 !important; color: var(--tinta) !important; }
.ec-chica { font-family: var(--serif); font-size: 14.5px !important; }
.frac { display: inline-flex; flex-direction: column; vertical-align: middle; text-align: center; font-size: .78em; margin: 0 3px; }
.frac span:first-child { border-bottom: 1px solid currentColor; padding: 0 4px; }

/* Distribución */
.distribucion { padding-bottom: 12px; }
#histo { width: 100%; height: auto; display: block; padding: 0 10px; }
.cifras { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 4px 16px 0; }
.cifras div { background: var(--suave); border-radius: 10px; padding: 7px 8px; text-align: center; }
.cifras b { display: block; font-size: 16px; font-variant-numeric: tabular-nums; }
.cifras span { font-size: 11px; color: var(--gris); }

/* Mapa */
.t-mapa { padding-bottom: 12px; }
.mapa-caja { position: relative; margin: 0 16px; aspect-ratio: 1; border-radius: 12px; overflow: hidden; background: #F1EEE8; }
.mapa-caja canvas, .mapa-caja svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.mapa-caja canvas { image-rendering: pixelated; transition: opacity .3s; }
.mapa-pie { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 16px 0; flex-wrap: wrap; }
.leyenda { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--gris); flex-wrap: wrap; }
.leyenda .u { margin-left: 2px; }
.escala { display: inline-block; width: 110px; height: 9px; border-radius: 4px; }
.mapa-ctrl { display: flex; align-items: center; gap: 12px; }
.bloques { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--gris); }
.bloques input { width: 90px; }
.seg { display: inline-flex; background: var(--suave); border-radius: 9px; padding: 3px; }
.seg button { border: 0; background: transparent; border-radius: 7px; padding: 4px 9px; font-size: 12px; cursor: pointer; color: var(--gris); }
.seg button[aria-pressed="true"] { background: #fff; color: var(--tinta); font-weight: 600; box-shadow: 0 1px 3px rgba(0, 0, 0, .1); }
.aviso { margin: 8px 16px 0; font-size: 12px; color: var(--gris-2); }
.btn-play { border: 0; background: var(--par); color: #fff; border-radius: 999px; padding: 7px 14px 7px 10px; font-size: 13.5px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; cursor: pointer; box-shadow: 0 4px 14px rgba(224, 112, 31, .35); }
.btn-play svg { width: 14px; height: 14px; fill: #fff; }
.btn-play:hover { filter: brightness(1.06); }
.globo { position: absolute; left: 12px; top: 12px; background: rgba(255, 255, 255, .94); border-radius: 12px; padding: 8px 12px; box-shadow: var(--sombra); font-size: 13.5px; line-height: 1.35; pointer-events: none; }
.globo b { font-size: 20px; color: var(--par); font-variant-numeric: tabular-nums; }
.globo .rango { display: block; font-size: 12px; color: var(--gris); margin: 1px 0 3px; }
.saltar { position: absolute; right: 12px; bottom: 12px; border: 0; background: rgba(31, 35, 40, .85); color: #fff; border-radius: 999px; padding: 7px 14px; font-size: 13px; cursor: pointer; }

/* Variograma */
.col-der { display: flex; flex-direction: column; gap: 16px; }
.t-grafico { padding-bottom: 12px; overflow: hidden; background: linear-gradient(180deg, #FFF8F1 0, #fff 64px); box-shadow: var(--sombra), inset 0 3px 0 var(--par); }
#grafico { width: 100%; height: auto; display: block; }
.t-grafico .leyenda { padding: 4px 16px 0; gap: 14px; }
.leyenda span { display: inline-flex; align-items: center; gap: 6px; }
.leyenda em { font-style: normal; }
.pt { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.pt-exp { background: var(--tinta); }
.pt-prev { border: 2px solid var(--prev); }
.ln { width: 20px; display: inline-block; border-top: 3px solid; }
.ln-modelo { border-color: var(--modelo); }
.ln-real { border-color: var(--real); border-top-style: dashed; }
.ln-var { border-top: 2px dotted #9AA0AA; }
.txt { fill: var(--gris); font-size: 13px; font-family: var(--sans); }
.txt-t { fill: var(--gris); font-size: 13px; font-family: var(--sans); }
.rejilla { stroke: var(--linea); }
.eje { stroke: #C9C3B9; }
.punto { cursor: pointer; transition: transform .55s cubic-bezier(.2, .9, .3, 1), opacity .3s; }
.punto .cuerpo { fill: var(--tinta); stroke: #fff; stroke-width: 2; transition: r .35s, fill .2s; }
.punto:hover .cuerpo, .punto.sel .cuerpo { fill: var(--par); }
.punto .halo { fill: var(--par); opacity: 0; }
.punto.sel .halo { animation: latido 1.4s ease-in-out infinite; }
.punto.oculto { opacity: 0; }
.punto.nace .cuerpo { animation: nace .45s cubic-bezier(.2, 1.7, .4, 1); }
@keyframes nace { from { r: 0; } }
@keyframes latido { 0%, 100% { opacity: .12; } 50% { opacity: .35; } }

/* Cálculo */
.calculo { padding: 16px 18px 16px 22px; min-height: 150px; background: linear-gradient(135deg, #F2FAF8 0%, #FFF8F1 100%); box-shadow: var(--sombra), inset 4px 0 0 var(--modelo); }
.calculo .k { font-size: 12.5px; color: var(--gris); }
.calculo .grande { font-family: var(--serif); font-size: 30px; font-weight: 700; color: var(--par); font-variant-numeric: tabular-nums; }
.calculo .ec { font-size: 17px; text-align: left; margin: 6px 0 !important; }
.calculo .ejemplo { margin-top: 10px; background: rgba(255, 255, 255, .8); border-radius: 12px; padding: 10px 12px; font-size: 14px; line-height: 1.55; }
.calculo .nav { display: flex; align-items: center; justify-content: space-between; margin-top: 6px; font-size: 12.5px; color: var(--gris); }
.calculo .nav button { border: 0; background: #fff; border-radius: 8px; width: 30px; height: 26px; cursor: pointer; box-shadow: 0 1px 3px rgba(0, 0, 0, .08); }
.calc-lead { font-family: var(--serif); font-size: 18px; line-height: 1.5; margin: 0; }
.calc-lead b { color: var(--tinta); }
.calc-pista { margin: 10px 0 0; font-size: 13.5px; color: var(--gris); }

/* Animaciones del mapa */
.muestra { transform-box: fill-box; transform-origin: center; animation: caer .5s cubic-bezier(.2, 1.6, .4, 1) both; }
@keyframes caer { from { transform: scale(0); opacity: 0; } }
.par-linea { stroke: var(--par); stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; animation: trazar .45s ease-out forwards; }
.par-halo { stroke: #fff; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; animation: trazar .45s ease-out forwards; }
@keyframes trazar { to { stroke-dashoffset: 0; } }
.apagando { transition: opacity .35s; opacity: 0; }
.capa-vuelo { position: fixed; inset: 0; pointer-events: none; z-index: 40; }
.chispa { position: absolute; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; border-radius: 50%; background: var(--par); box-shadow: 0 0 0 3px rgba(224, 112, 31, .25); }

/* Pie */
.pie { max-width: 1760px; margin: 6px auto 40px; padding: 0 20px 0 104px; display: grid; grid-template-columns: 1fr auto; gap: 8px 20px; align-items: center; }
.pie p { margin: 0; font-size: 15px; color: var(--gris); line-height: 1.5; }
.pie p b { color: var(--tinta); }

/* Pantallas medianas: riel arriba, mapa y gráfico lado a lado */
@media (max-width: 1280px) {
  .app { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); padding: 12px 16px; }
  .riel { grid-column: 1 / -1; position: sticky; top: 70px; z-index: 20; flex-direction: row; justify-content: center; }
  .riel-btn { flex-direction: row; font-size: 13.5px; padding: 8px 14px; gap: 8px; }
  .riel-btn[aria-selected="true"]::before { left: 10px; right: 10px; top: auto; bottom: -5px; width: auto; height: 3px; border-radius: 3px; }
  .riel-btn svg { width: 20px; height: 20px; }
  .col-param { grid-column: 1 / -1; position: static; display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); }
  .pie { padding: 0 16px; }
}
@media (max-width: 760px) {
  .barra-app { display: none; }
  .app { grid-template-columns: minmax(0, 1fr); padding: 10px 12px; }
  .riel { top: 64px; gap: 2px; padding: 5px; }
  .riel-btn { flex-direction: column; font-size: 11px; padding: 6px 4px; gap: 3px; flex: 1; }
  .col-param { display: contents; }
  .riel { order: 0; } .parametros { order: 1; } .t-mapa { order: 2; } .col-der { order: 3; } .distribucion { order: 4; }
  .marca span { display: none; }
  .volver { padding: 6px 8px; }
  .mapa-pie { flex-direction: column; align-items: flex-start; }
  .pie { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .muestra, .par-linea, .par-halo, .punto, .punto.sel .halo, .punto.nace .cuerpo { animation: none; transition: none; stroke-dashoffset: 0; }
}

/* ── Selector de módulos (Variograma | Kriging) en la barra ── */
.modulos { display: inline-flex; gap: 4px; padding: 4px; margin-left: 8px; border-radius: 11px; background: rgba(255, 255, 255, .06); }
.modulos a { text-decoration: none; font-family: var(--serif); font-size: 16px; font-weight: 600; color: #B9B4C4; padding: 6px 14px; border-radius: 8px; transition: background .15s, color .15s; }
.modulos a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.modulos a[aria-current="page"] { color: #1B1A21; background: #FBFAF7; }

/* ── Laboratorio de kriging ── */
.t-dato { font-size: 13px; color: var(--gris); font-variant-numeric: tabular-nums; }
#estimado { image-rendering: pixelated; }
.mapa-caja.arrastrando { cursor: grabbing; }
#mapa .arrastrable { cursor: grab; }
.cortina { position: absolute; left: 0; right: 0; bottom: 10px; width: calc(100% - 24px); margin: 0 12px; accent-color: #fff; }
.resultado { padding-bottom: 14px; }
.res { padding: 0 16px; }
.res-z { font-family: var(--serif); font-size: 34px; font-weight: 700; font-variant-numeric: tabular-nums; }
.res-z small { font-family: var(--sans); font-size: 14px; font-weight: 500; color: var(--gris); }
.res-fila { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; margin-top: 10px; }
.res-fila div { background: var(--suave); border-radius: 10px; padding: 8px 10px; }
.res-fila b { display: block; font-size: 16px; font-variant-numeric: tabular-nums; }
.res-fila span { font-size: 11.5px; color: var(--gris); }
.res-barra { height: 7px; border-radius: 5px; background: var(--suave); overflow: hidden; margin-top: 6px; }
.res-barra i { display: block; height: 100%; border-radius: 5px; background: linear-gradient(90deg, var(--modelo), #F2B27A, #E0533D); transition: width .3s; }
.res-nota { margin: 10px 0 0; font-size: 12px; color: var(--gris-2); }
.t-pesos { padding-bottom: 12px; background: linear-gradient(180deg, #F3F7FD 0, #fff 64px); box-shadow: var(--sombra), inset 0 3px 0 #3B7DD8; overflow: hidden; }
.pesos { padding: 0 16px; display: flex; flex-direction: column; gap: 4px; height: 372px; overflow-y: auto; }
.peso { display: grid; grid-template-columns: 74px 1fr 58px; align-items: center; gap: 8px; font-size: 12.5px; border-radius: 8px; padding: 2px 4px; cursor: default; }
.peso:hover, .peso.activo { background: var(--suave); }
.peso .et { color: var(--gris); white-space: nowrap; }
.peso .et b { color: var(--tinta); }
.peso .barra-w { position: relative; height: 12px; }
.peso .barra-w::before { content: ""; position: absolute; left: 30%; top: -2px; bottom: -2px; width: 1px; background: #D8D2C8; }
.peso .barra-w i { position: absolute; top: 0; bottom: 0; border-radius: 3px; transition: left .25s, width .25s; }
.peso .val { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.matriz { width: 100%; max-width: 330px; height: auto; display: block; margin: 6px 0 4px; }
.calc-linea { font-family: var(--serif); font-size: 16px; margin: 6px 0; line-height: 1.45; }
.calc-linea b { font-variant-numeric: tabular-nums; }
@media (max-width: 760px) {
  .modulos { margin-left: 0; }
  .modulos a { font-size: 14px; padding: 5px 9px; }
  .pag-kriging .resultado { order: 3; }
  .pag-kriging .col-der { order: 4; }
}

.zg { font-family: var(--sans); font-style: italic; font-weight: 600; }
.aviso-pesos { margin: 10px 0 0; padding: 10px 12px; border-radius: 10px; background: #F2FAF8; font-size: 13px; line-height: 1.5; color: #3a3f46; }
.aviso-pesos b { color: var(--tinta); }
input[type="range"]:disabled { opacity: .4; }

/* Aviso "Esto es un ejemplo visual": cuadro ancho bajo las tres columnas */
.alertas { grid-column: 2 / -1; padding: 18px 20px 18px; }
.alertas-cab { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.alertas-cab h2 { font-family: var(--serif); font-size: 19px; font-weight: 600; margin: 0; }
.alertas-cab .sub { margin: 0; }
.alertas-lista { list-style: none; margin: 14px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
.alertas-lista li { --c: #E0701F; display: flex; flex-direction: column; gap: 4px; padding: 10px 12px 11px 14px; border-radius: 12px; background: var(--suave); box-shadow: inset 3px 0 0 var(--c); font-size: 12.5px; line-height: 1.45; color: var(--gris); }
.alertas-lista li:nth-child(5n + 2) { --c: #14A38B; }
.alertas-lista li:nth-child(5n + 3) { --c: #3B7DD8; }
.alertas-lista li:nth-child(5n + 4) { --c: #D9507E; }
.alertas-lista li:nth-child(5n + 5) { --c: #7B4FD6; }
.alertas-lista b { font-size: 13.5px; color: var(--tinta); }
@media (max-width: 1280px) {
  .alertas { grid-column: 1 / -1; }
  .alertas-lista { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .alertas { order: 6; }
  .alertas-lista { grid-template-columns: minmax(0, 1fr); }
}
.calculo .calc-pista { min-height: 4.4em; }
@media (max-width: 760px) {
  .barra { gap: 6px; padding: 0 12px; flex-wrap: wrap; height: auto; min-height: 64px; }
  .marca { gap: 0; }
  .volver { font-size: 11px; padding: 6px 4px; }
  .modulos { gap: 0; padding: 3px; }
  .modulos a { font-size: 13px; padding: 5px 6px; }
  .language-switch button { padding: 5px; font-size: 11px; }
}