.cronometro{font-variant-numeric:tabular-nums;align-items:center;gap:.35rem;min-width:5.5rem;font-size:1.25rem;display:inline-flex}.cronometro svg{width:1.3em;height:1.3em}.boton-mini{border:2px solid var(--borde);background:var(--superficie);cursor:pointer;border-radius:999px;align-items:center;gap:.35rem;min-height:44px;padding:.3rem .9rem;font-weight:700;display:inline-flex}.boton-mini:hover{border-color:var(--primario)}.boton-mini svg{width:1.1em;height:1.1em}.herramientas{grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem;display:grid}.herramienta{border:2px solid var(--borde);background:var(--superficie);cursor:pointer;touch-action:manipulation;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:3px;min-height:66px;padding:.3rem .2rem;font-size:clamp(.7rem,3.3vw,.85rem);font-weight:700;line-height:1.1;display:flex}.herramienta svg{width:1.55rem;height:1.55rem}.herramienta:hover{border-color:var(--primario)}.herramienta[aria-pressed=true]{background:var(--primario);border-color:var(--primario);color:var(--primario-texto)}.opcion{cursor:pointer;align-items:flex-start;gap:.6rem;font-size:.95rem;display:flex}.opcion input{width:1.4rem;height:1.4rem;accent-color:var(--primario);flex:none;margin:.1rem 0 0}.enlace-icono svg{vertical-align:-.2em;width:1.15em;height:1.15em;margin-right:.2em;display:inline-block}.enlace-icono{align-items:center;min-height:44px;display:inline-flex}.sudoku{margin:.5rem 0 0}.sudoku__barra{flex-wrap:wrap;align-items:center;gap:.6rem 1rem;max-width:30rem;margin:0 auto .75rem;font-weight:700;display:flex}@media (width>=900px){.sudoku__barra{max-width:none}}.sudoku__pistas{color:var(--texto-suave);margin-left:auto}.boton-mini .icono-reanudar,.sudoku.en-pausa .boton-mini .icono-pausa{display:none}.sudoku.en-pausa .boton-mini .icono-reanudar{display:block}.sudoku__zona{justify-items:center;gap:1.25rem;display:grid}@media (width>=900px){.sudoku__zona{grid-template-columns:minmax(0,30rem) minmax(210px,13.5rem);justify-content:start;align-items:start;gap:1.75rem}}.sudoku__tablero-caja{width:100%;max-width:30rem;position:relative;container-type:inline-size}.tablero{aspect-ratio:1;border:3px solid var(--borde-fuerte);background:var(--celda);-webkit-user-select:none;user-select:none;border-radius:6px;grid-template-columns:repeat(9,minmax(0,1fr));display:grid;overflow:hidden}.celda{aspect-ratio:1;border:0;border-right:1px solid var(--borde);border-bottom:1px solid var(--borde);background:var(--celda);min-width:0;color:var(--numero-usuario);cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;border-radius:0;place-items:center;margin:0;padding:0;font-size:6.6cqi;line-height:1;display:grid;position:relative}.celda:nth-child(9n){border-right:0}.celda.c3{border-right:3px solid var(--borde-fuerte)}.celda.f3{border-bottom:3px solid var(--borde-fuerte)}.celda.ultima{border-bottom:0}.celda.dada{color:var(--numero-dado);font-weight:700}.celda.relacionada{background:var(--celda-relacionada)}.celda.mismo{background:var(--celda-mismo)}.celda.seleccionada{background:var(--celda-seleccion)}.celda:focus-visible{outline:3px solid var(--foco);outline-offset:-3px;z-index:1;border-radius:0}.celda.pista{color:var(--exito)}.celda.error{color:var(--error);background:var(--error-suave)}.celda.error:after{content:"";border-style:solid;border-width:0 .55rem .55rem 0;border-color:transparent var(--error) transparent transparent;position:absolute;top:0;right:0}.celda.error.seleccionada{background:color-mix(in srgb, var(--error-suave) 55%, var(--celda-seleccion))}.notas{color:var(--texto-suave);grid-template-rows:repeat(3,1fr);grid-template-columns:repeat(3,1fr);place-items:center;font-size:2.35cqi;font-weight:700;line-height:1;display:grid;position:absolute;inset:1px}.notas .resaltada{color:var(--primario);background:var(--primario-suave);border-radius:3px;padding:0 1px}.sudoku.terminado .celda{cursor:default}.sudoku__velo{background:var(--superficie-2);border:3px solid var(--borde-fuerte);border-radius:6px;place-content:center;justify-items:center;gap:1rem;font-size:1.3rem;font-weight:700;display:grid;position:absolute;inset:0}.sudoku__velo[hidden]{display:none}.sudoku__velo p{margin:0}.sudoku__controles{gap:.9rem;width:100%;max-width:30rem;display:grid}.teclado{grid-template-columns:repeat(5,minmax(0,1fr));gap:.5rem;display:grid}.tecla{border:2px solid var(--borde);background:var(--superficie);min-height:62px;color:var(--primario);cursor:pointer;touch-action:manipulation;box-shadow:0 2px 0 var(--borde);border-radius:12px;font-size:1.75rem;font-weight:700;line-height:1;position:relative}.tecla:hover{border-color:var(--primario)}.tecla:active{box-shadow:none;transform:translateY(1px)}.tecla small{color:var(--texto-suave);font-size:.62rem;font-weight:700;position:absolute;top:4px;right:6px}.tecla:disabled{opacity:.35;cursor:default}.tecla--borrar{color:var(--texto);flex-direction:column;justify-content:center;align-items:center;gap:2px;font-size:.8rem;display:flex}.tecla--borrar svg{width:1.6rem;height:1.6rem}.sudoku.modo-notas .tecla:not(.tecla--borrar){border-style:dashed;border-color:var(--primario);background:var(--primario-suave);font-size:1.2rem}@media (width>=900px){.teclado{grid-template-columns:repeat(3,minmax(0,1fr))}.tecla--borrar{flex-direction:row;grid-column:1/-1;min-height:52px;font-size:1rem}.sudoku .herramientas{grid-template-columns:repeat(2,minmax(0,1fr))}}.sudoku__mensaje{border-radius:var(--radio-peque);background:var(--superficie-2);min-height:3.2em;margin:0;padding:.55rem .8rem;font-size:.95rem}.sudoku__mensaje.bien{background:var(--exito-suave);color:var(--exito);font-weight:700}.sudoku__mensaje.mal{background:var(--error-suave);color:var(--error);font-weight:700}.sudoku__extra{flex-wrap:wrap;gap:.6rem 1.4rem;font-size:.95rem;display:flex}.sudoku__extra svg{vertical-align:-.2em;width:1.15em;height:1.15em;margin-right:.2em;display:inline-block}.sudoku__extra .enlace-boton{color:var(--primario);min-height:44px}