/* Distribución y estados de nonogramas. La capa visual existente queda intacta. */
.nono-niveles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.nono-nivel { padding: 14px 6px; border-radius: 16px; background: var(--nono-mini); display: flex; flex-direction: column; gap: 5px; text-align: center; color: var(--ink); min-height: 98px; justify-content: center; }
.nono-nivel-10 { background: var(--nono-normal); }
.nono-nivel-15 { background: var(--nono-grande); }
.nono-nivel b { font-family: Fredoka, sans-serif; font-weight: 600; font-size: 1.12rem; }
.nono-nivel b span, .nono-nivel > span { display: block; font-family: Nunito, sans-serif; font-size: .8rem; }
.nono-nivel small { font-size: .7rem; font-weight: 800; }
.nono-enlaces { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 10px; }
:root { --nono-mini: #d9efe6; --nono-normal: #e5def4; --nono-grande: #fae5ce; --nono-linea: color-mix(in srgb, var(--board) 58%, var(--cell)); }
:root[data-theme='dark'] { --nono-mini: #30483f; --nono-normal: #41344f; --nono-grande: #4b3b30; }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) { --nono-mini: #30483f; --nono-normal: #41344f; --nono-grande: #4b3b30; } }
.nono-estado { display: flex; align-items: center; gap: 10px; min-height: 64px; color: var(--ink-soft); }
.nono-haru { margin-left: auto; }
.nono-haru .gato { display: block; width: 68px; height: 68px; }
.nono-ayuda { align-self: flex-end; font-size: .85rem; }
.nono-tablero { display: grid; grid-template-columns: var(--pistas) repeat(var(--tam), minmax(0, 1fr)); grid-template-rows: auto repeat(var(--tam), auto); width: 100%; max-width: 480px; margin: 0 auto; touch-action: none; user-select: none; -webkit-user-select: none; border-radius: 12px; overflow: hidden; }
.nono-celda { aspect-ratio: 1; min-width: 0; width: 100%; padding: 0; display: grid; place-items: center; border-right: 1px solid var(--nono-linea); border-bottom: 1px solid var(--nono-linea); background: var(--cell); position: relative; border-radius: 0; touch-action: none; transition: background-color .12s; }
.nono-celda.grupo-col { border-left: 2px solid var(--board); }
.nono-celda.grupo-fila { border-top: 2px solid var(--board); }
.nono-celda.rel { background: var(--cell-rel); }
.nono-celda.pintada { background: var(--ink); box-shadow: inset 0 0 0 2px var(--cell); }
.nono-celda.cruz::before, .nono-celda.cruz::after { content: ''; position: absolute; width: 58%; height: 1px; background: var(--ink-soft); transform: rotate(45deg); }
.nono-celda.cruz::after { transform: rotate(-45deg); }
.nono-celda.mal { background: var(--err-bg); box-shadow: inset 0 0 0 2px var(--err); }
.nono-celda:focus-visible { outline: 2px solid var(--pink-d); outline-offset: -3px; z-index: 1; }
.nono-pista { font: 700 .7rem/1.2 Nunito, sans-serif; background: var(--card); color: var(--ink); padding: 3px; min-width: 0; }
.nono-pista.columna { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 2px; padding-bottom: 8px; }
.nono-pista.fila { display: flex; align-items: center; justify-content: flex-end; white-space: pre; padding-right: 6px; }
.nono-pista.lista { color: var(--ink-soft); opacity: .48; }
.nono-modos { display: flex; gap: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 5px; }
.nono-modos button { min-height: 48px; border-radius: 13px; flex: 1; font-weight: 800; }
.nono-modos [aria-pressed='true'] { background: var(--dulce); color: var(--dulce-texto); box-shadow: var(--shadow-s); }
.nono-herramientas { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.nono-herramientas button:disabled { opacity: .4; }
.nono-revelado .nono-pista, .nono-revelado .nono-esquina { opacity: 0; transition: opacity .5s; }
.nono-revelado .nono-celda { animation: nono-revelar .12s var(--revela) both; border-color: transparent; box-shadow: none; }
.nono-revelado .nono-celda::before, .nono-revelado .nono-celda::after { display: none; }
@keyframes nono-revelar { to { background: var(--color); border-color: transparent; } }
.nono-guia { padding: 14px; border-radius: var(--r); display: grid; gap: 10px; position: relative; }
.nono-guia::before { content: ''; position: absolute; right: 26px; top: -10px; border-left: 10px solid transparent; border-right: 10px solid transparent; border-bottom: 10px solid var(--card); }
.nono-guia p { margin: 0; font-weight: 800; font-size: .95rem; line-height: 1.4; }
.nono-guia [hidden] { display: none; }
.nono-tutorial .nono-estado { min-height: 48px; }
.nono-tutorial .barra { position: sticky; top: 0; z-index: 3; background: var(--bg); border-radius: 16px; }
.nono-tutorial [data-saltar] { font-size: .8rem; min-height: 44px; padding: 6px; }
.nono-tutorial .nono-haru .gato { width: 72px; height: 72px; }
.nono-tutorial .nono-tablero { max-width: 320px; }
.nono-foco { box-shadow: inset 0 0 0 2px var(--pink-d) !important; }
.nono-practica-inactiva { pointer-events: none; opacity: .55; }
.nono-ejemplo { display: flex; align-items: center; justify-content: center; gap: 4px; }
.nono-ejemplo b { margin-right: 8px; }
.nono-ejemplo i { width: 26px; height: 26px; border: 1px solid var(--board); }
.nono-ejemplo .llena { background: var(--ink); }
.nono-ejemplo .hueco { background: var(--cell); }
.nono-guia[data-paso='1'] .hueco { box-shadow: 0 0 10px var(--pink-d); border: 2px solid var(--pink-d); }
.nono-galeria { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.nono-recuerdo { display: flex; flex-direction: column; gap: 8px; padding: 10px; background: var(--card); border-radius: var(--r); box-shadow: var(--shadow-s); text-align: center; min-width: 0; }
.nono-recuerdo b { font-size: .8rem; }
.nono-miniatura { display: grid; grid-template-columns: repeat(var(--tam), 1fr); width: 100%; aspect-ratio: 1; }
.nono-miniatura i { display: block; }
.nono-secreto { background: transparent; border: 2px dashed var(--line); color: var(--ink-soft); }
.nono-incognita { display: grid; place-items: center; aspect-ratio: 1; font: 2rem Fredoka, sans-serif; }
.nono-detalle { padding: 12px; }
.nono-detalle .nono-miniatura { width: min(100%, 340px); }

/* ---------- Capa visual (Claude) ---------- */
:root { --nono-tinta: #5a3446; --nono-pista: color-mix(in srgb, var(--board) 12%, var(--card)); }
:root[data-theme='dark'] { --nono-tinta: #ff9fbd; }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) { --nono-tinta: #ff9fbd; } }

/* Niveles del inicio con el mismo lenguaje que los del sudoku */
.nono-nivel {
  position: relative; overflow: hidden; isolation: isolate; border-radius: 20px; min-height: 104px; color: #3f2a36;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75), 0 10px 18px -12px var(--tono, rgba(0, 0, 0, 0.3));
  transition: transform 0.12s ease;
}
.nono-nivel::after {
  content: ''; position: absolute; inset: auto -6px -10px auto; width: 56px; height: 56px; z-index: -1; opacity: 0.5;
  background: linear-gradient(#fff 0 0) 0 0 / 30% 30%, linear-gradient(#fff 0 0) 50% 50% / 30% 30%, linear-gradient(#fff 0 0) 100% 100% / 30% 30%,
    linear-gradient(#fff 0 0) 100% 0 / 30% 30%, linear-gradient(#fff 0 0) 0 100% / 30% 30%;
  background-repeat: no-repeat; border-radius: 6px; transform: rotate(-12deg);
}
.nono-nivel:active { transform: translateY(2px) scale(0.98); }
.nono-nivel b { font-size: 1.2rem; }
.nono-nivel > span { align-self: center; padding: 2px 9px; border-radius: 99px; background: rgba(255, 255, 255, 0.6); font-weight: 800; }
.nono-nivel small { position: absolute; top: 8px; right: 8px; background: #fff; padding: 1px 7px; border-radius: 99px; text-transform: uppercase; letter-spacing: 0.3px; }
.nono-nivel-5 { background: linear-gradient(150deg, #dcf8ec, #b8ead5); --tono: rgba(44, 150, 112, 0.55); }
.nono-nivel-10 { background: linear-gradient(150deg, #efe7ff, #d6c6ff); --tono: rgba(112, 86, 200, 0.55); }
.nono-nivel-15 { background: linear-gradient(150deg, #ffeedd, #ffd3ad); --tono: rgba(214, 130, 60, 0.55); }
:root[data-theme='dark'] .nono-nivel { color: #f8eaf0; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 10px 18px -12px rgba(0, 0, 0, 0.8); }
:root[data-theme='dark'] .nono-nivel::after { opacity: 0.08; }
:root[data-theme='dark'] .nono-nivel > span, :root[data-theme='dark'] .nono-nivel small { background: rgba(255, 255, 255, 0.12); }
:root[data-theme='dark'] .nono-nivel-5 { background: linear-gradient(150deg, #24564a, #1a3f37); }
:root[data-theme='dark'] .nono-nivel-10 { background: linear-gradient(150deg, #3f3470, #2e2554); }
:root[data-theme='dark'] .nono-nivel-15 { background: linear-gradient(150deg, #5c3f2a, #43301f); }
.nono-enlaces { justify-content: center; gap: 22px; }

/* Estado del juego compacto: tiempo, errores, ayuda y Haru en una línea */
.nono-estado { min-height: 56px; gap: 8px; }
.nono-estado [data-nono-tiempo]:not(:empty) { padding: 4px 10px; border-radius: 99px; background: color-mix(in srgb, var(--card) 70%, transparent); border: 1px solid var(--card-borde); font-variant-numeric: tabular-nums; font-weight: 700; }
.nono-estado .nono-ayuda { margin-left: auto; padding: 6px 4px; }
.nono-estado .nono-ayuda + .nono-haru { margin-left: 0; }
.nono-haru .gato { width: 58px; height: 58px; }

/* Tablero con marco, pistas legibles y resaltado de la línea tocada */
.nono-tablero {
  padding: 6px; border-radius: 20px; background: var(--card); border: 1px solid var(--card-borde);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 18px 32px -18px rgba(var(--sombra-color, 173, 92, 92), 0.55);
}
.nono-esquina { background: var(--nono-pista); border-top-left-radius: 14px; }
.nono-pista { background: var(--nono-pista); color: var(--ink); font-family: 'Fredoka', sans-serif; font-weight: 600; transition: background 0.12s, color 0.12s, opacity 0.2s; }
.nono-pista.columna { padding-bottom: 6px; }
.nono-pista.columna:last-of-type { border-top-right-radius: 14px; }
.nono-pista.rel { background: color-mix(in srgb, var(--pink) 26%, var(--card)); color: var(--ink); }
.nono-pista.lista { opacity: 0.32; }
.nono-tablero[data-tam='5'] .nono-pista { font-size: 1.05rem; }
.nono-tablero[data-tam='10'] .nono-pista { font-size: 0.82rem; }
.nono-tablero[data-tam='15'] .nono-pista { font-size: 0.68rem; padding-left: 1px; padding-right: 3px; }
.nono-celda.pintada { background: var(--nono-tinta); box-shadow: inset 0 0 0 1.5px var(--cell); border-radius: 4px; }
.nono-celda.pintada.rel { background: var(--nono-tinta); }
.nono-celda.cruz::before, .nono-celda.cruz::after { height: 1.5px; border-radius: 1px; background: color-mix(in srgb, var(--ink-soft) 80%, transparent); }
.nono-celda.mal { border-radius: 4px; }
.nono-revelado { box-shadow: 0 0 0 4px color-mix(in srgb, #ffd25e 55%, transparent), 0 18px 32px -18px rgba(173, 92, 92, 0.55); transition: box-shadow 0.4s; }
.nono-revelado .nono-celda { border-radius: 0; }

/* Modos y herramientas */
.nono-modos { border-radius: 20px; box-shadow: var(--shadow-s); border-color: var(--card-borde); }
.nono-modos button { font-family: 'Fredoka', sans-serif; font-weight: 600; font-size: 1.02rem; color: var(--ink-soft); transition: background 0.15s, color 0.15s; }
.nono-modos [aria-pressed='true'] { color: var(--dulce-texto); }

/* Galería por tamaño */
.nono-seccion { display: flex; flex-direction: column; gap: 10px; }
.nono-seccion h3 { font-size: 1.15rem; }
.nono-seccion h3 span { font-family: 'Nunito', sans-serif; font-size: 0.8rem; font-weight: 700; color: var(--ink-soft); }
.nono-galeria { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.nono-recuerdo { padding: 8px; gap: 6px; border: 1px solid var(--card-borde); border-radius: 16px; }
.nono-recuerdo b { font-size: 0.72rem; line-height: 1.15; }
.nono-recuerdo .nono-miniatura { border-radius: 6px; overflow: hidden; background: var(--cell); }
.nono-secreto { padding: 0; border-radius: 16px; background: color-mix(in srgb, var(--card) 50%, transparent); box-shadow: none; }
.nono-incognita { font-size: 1.4rem; opacity: 0.5; }

/* ---------- Huellitas en vez de cuadrados (Claude) ---------- */
:root {
  --huella-svg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 40'%3E%3Cg fill='%23000'%3E%3Cellipse cx='20' cy='27' rx='10' ry='8.5'/%3E%3Cellipse cx='8' cy='16' rx='4.2' ry='5.2'/%3E%3Cellipse cx='16' cy='9' rx='4.2' ry='5.4'/%3E%3Cellipse cx='25' cy='9' rx='4.2' ry='5.4'/%3E%3Cellipse cx='33' cy='16' rx='4.2' ry='5.2'/%3E%3C/g%3E%3C/svg%3E");
  --nono-fondo-huella: color-mix(in srgb, var(--pink) 20%, var(--cell));
}
.nono-celda.pintada { background: var(--nono-fondo-huella); box-shadow: none; border-radius: 0; }
.nono-celda.pintada::after {
  content: ''; position: absolute; inset: 14%; background: var(--nono-tinta);
  -webkit-mask: var(--huella-svg) center / contain no-repeat; mask: var(--huella-svg) center / contain no-repeat;
  animation: huellaNueva 0.18s ease-out;
}
.nono-celda.pintada.rel { background: color-mix(in srgb, var(--pink) 30%, var(--cell)); }
@keyframes huellaNueva { from { transform: scale(0.4); opacity: 0; } }
.nono-revelado .nono-celda.pintada { background: var(--color); }

/* ---------- Tutorial guiado ---------- */
.nono-guia p { font-size: 1.02rem; }
.nono-paso { color: var(--ink-soft); font-weight: 800; }
.nono-ejemplos { display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; }
.nono-ejemplos > div { display: flex; align-items: center; gap: 8px; }
.nono-ejemplos b { font-family: 'Fredoka', sans-serif; font-size: 1.15rem; }
.nono-huellas { display: inline-flex; gap: 3px; }
.nono-huellas i, .nono-ejemplo i { position: relative; width: 28px; height: 28px; border-radius: 6px; border: 1px solid var(--line); background: var(--cell); }
.nono-huellas .llena { background: var(--nono-fondo-huella); }
.nono-huellas .llena::after { content: ''; position: absolute; inset: 14%; background: var(--nono-tinta); -webkit-mask: var(--huella-svg) center / contain no-repeat; mask: var(--huella-svg) center / contain no-repeat; }
.nono-guia small { display: block; text-align: center; color: var(--ink-soft); font-weight: 700; }
.nono-celda.nono-foco { box-shadow: inset 0 0 0 3px var(--pink-d) !important; animation: focoLate 1.3s ease-in-out infinite; z-index: 1; }
.nono-pista.nono-foco { background: color-mix(in srgb, var(--pink) 40%, var(--card)); color: var(--ink); opacity: 1; animation: focoLate 1.3s ease-in-out infinite; }
.nono-modos .nono-foco:not([aria-pressed='true']) { box-shadow: 0 0 0 3px var(--pink-d); animation: focoLate 1.3s ease-in-out infinite; }
@keyframes focoLate { 50% { filter: brightness(1.08); box-shadow: inset 0 0 0 3px color-mix(in srgb, var(--pink-d) 45%, transparent); } }