:root {
  --bg: #1a1d23;
  --panel: #262a31;
  --panel-alt: #2f343c;
  --text: #e8e6e1;
  --muted: #a5a39e;
  --accent: #e0b84a;
  --accent-dark: #a98821;
  --danger: #d96a6a;
  --ok: #7bbf6a;
  --border: #3a3f47;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: #14161a;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .logo { font-size: 26px; }
.brand h1 { margin: 0; font-size: 22px; letter-spacing: 0.5px; }
.brand .tagline { color: var(--muted); font-size: 13px; }

.niveles { display: flex; gap: 6px; flex-wrap: wrap; }
.niveles button {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.15s;
}
.niveles button:hover { background: var(--panel-alt); }
.niveles button.activo {
  background: var(--accent);
  color: #1a1d23;
  border-color: var(--accent-dark);
  font-weight: 600;
}

/* ─── Layout 3 columnas (16:9) ─── */
.layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 360px;
  gap: 20px;
  padding: 24px;
  max-width: 1500px;
  margin: 0 auto;
}

@media (max-width: 1240px) {
  .layout { grid-template-columns: minmax(0, 1fr) 340px; }
  .panel-objetos {
    grid-column: 1 / -1;
    order: 99;
    position: static;
    max-height: none;
  }
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .panel { position: static; max-height: none; }
}

/* ─── Cabecera del caso ─── */
.caso-cabecera h2 {
  margin: 0 0 4px 0;
  font-size: 26px;
  color: var(--accent);
}
.caso-cabecera .escenario {
  margin: 0 0 10px 0;
  color: var(--muted);
  font-style: italic;
  font-size: 14px;
}
.caso-cabecera .intro {
  margin: 0 0 12px 0;
  line-height: 1.5;
  background: var(--panel);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: 4px;
}

/* Historia colapsable */
.historia {
  margin: 0 0 18px 0;
  background: var(--panel);
  border-left: 3px solid var(--muted);
  padding: 10px 14px;
  border-radius: 4px;
}
.historia[hidden] { display: none; }
.historia summary {
  cursor: pointer;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  font-weight: 600;
  user-select: none;
  outline: none;
  list-style: none;
}
.historia summary::before {
  content: '▸ ';
  display: inline-block;
  transition: transform 0.15s;
}
.historia[open] summary::before {
  transform: rotate(90deg);
}
.historia summary::-webkit-details-marker { display: none; }
.historia summary:hover { color: #edc65a; }
.historia[open] summary { margin-bottom: 10px; }
.historia p {
  margin: 0 0 8px 0;
  line-height: 1.55;
  font-size: 14px;
  color: var(--text);
}
.historia p:last-child { margin: 0; }

/* ─── Tablero ─── */
.tablero-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.hint {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
  max-width: 640px;
  text-align: center;
  line-height: 1.4;
}

.tablero {
  display: grid;
  gap: 3px;
  background: #0e1014;
  padding: 6px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.celda {
  position: relative;
  overflow: hidden;
  width: 72px; height: 72px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: box-shadow 0.15s;
  color: #1a1d23;
  user-select: none;
}
.celda:hover { box-shadow: 0 0 0 2px var(--accent) inset; }
.celda.error-pista { box-shadow: 0 0 0 3px var(--danger) inset; animation: latido 0.5s 2; }

@keyframes latido {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(0.95); }
}

/* ─── Objetos: grandes y centrados por defecto, pequeños a una esquina
   cuando la casilla tiene un personaje (fijo o provisional) ─── */
.celda .objetos-celda {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  pointer-events: none;
  z-index: 1;
  transition: inset 0.2s ease, gap 0.2s ease;
}
.celda.con-fijo .objetos-celda,
.celda.con-provisionales .objetos-celda {
  inset: 3px 4px auto auto;
  align-items: flex-start;
  justify-content: flex-end;
  gap: 2px;
}
.celda .objeto {
  font-size: var(--tamano-objeto, 46px);
  line-height: 1;
  opacity: 0.82;
  filter:
    drop-shadow(0 0 10px rgba(255, 255, 255, 0.45))
    drop-shadow(0 2px 3px rgba(0, 0, 0, 0.22));
  transition: font-size 0.18s ease, opacity 0.18s ease, filter 0.18s ease;
}
.celda .objetos-celda.multi .objeto {
  font-size: calc(var(--tamano-objeto, 46px) * 0.65);
}
.celda.con-fijo .objeto,
.celda.con-provisionales .objeto {
  font-size: 15px;
  opacity: 0.88;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.3));
}

/* Etiqueta de habitación (esquina inferior izquierda) */
.celda .habitacion-label {
  position: absolute;
  bottom: 2px; left: 4px;
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: rgba(0,0,0,0.5);
  pointer-events: none;
  z-index: 5;
}

/* ─── Personaje FIJO: ocupa la casilla como figura principal ─── */
.celda .personaje-fijo {
  font-size: 58px;
  line-height: 1;
  z-index: 4;
  cursor: pointer;
  filter: drop-shadow(0 2px 3px rgba(0,0,0,0.35));
  transition: transform 0.12s;
}
.celda .personaje-fijo:hover { transform: scale(0.9); }
.celda.con-fijo { cursor: pointer; }

/* ─── Marcas PROVISIONALES translúcidas ─── */
.celda .provisionales {
  position: absolute;
  inset: 3px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 0;
  align-items: center;
  justify-items: center;
  pointer-events: none;
  z-index: 3;
}
.celda .provisionales.single { display: flex; }
.celda .provisional {
  font-size: 18px;
  opacity: 0.55;
  cursor: pointer;
  pointer-events: auto;
  line-height: 1;
  transition: transform 0.1s, opacity 0.15s;
  filter: drop-shadow(0 1px 1px rgba(0,0,0,0.25));
}
.celda .provisional:hover {
  opacity: 1;
  transform: scale(1.4);
  z-index: 6;
}
.celda .provisionales.single .provisional {
  font-size: 54px;
  opacity: 0.4;
}
.celda .provisionales.single .provisional:hover {
  opacity: 0.85;
  transform: scale(1.05);
}

/* ─── Cruz (fila/columna tachadas por un fijo) ─── */
.celda.tachada-h::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: 50%;
  height: 2px;
  margin-top: -1px;
  background: rgba(0, 0, 0, 0.45);
  box-shadow: 0 0 4px rgba(0,0,0,0.5);
  pointer-events: none;
  z-index: 2;
}
.celda.tachada-v::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
  background: rgba(0, 0, 0, 0.45);
  box-shadow: 0 0 4px rgba(0,0,0,0.5);
  pointer-events: none;
  z-index: 2;
}

/* Tamaños de celda y de objeto según N (a través de custom properties) */
.tablero.n4 { grid-template-columns: repeat(4, 80px); }
.tablero.n4 .celda { width: 80px; height: 80px; --tamano-objeto: 52px; }
.tablero.n4 .celda .personaje-fijo { font-size: 62px; }
.tablero.n4 .celda .provisionales.single .provisional { font-size: 58px; }
.tablero.n4 .celda .provisional { font-size: 20px; }

.tablero.n5 { grid-template-columns: repeat(5, 76px); }
.tablero.n5 .celda { width: 76px; height: 76px; --tamano-objeto: 48px; }
.tablero.n5 .celda .personaje-fijo { font-size: 58px; }
.tablero.n5 .celda .provisionales.single .provisional { font-size: 54px; }
.tablero.n5 .celda .provisional { font-size: 18px; }

.tablero.n6 { grid-template-columns: repeat(6, 66px); }
.tablero.n6 .celda { width: 66px; height: 66px; --tamano-objeto: 42px; }
.tablero.n6 .celda .personaje-fijo { font-size: 50px; }
.tablero.n6 .celda .provisionales.single .provisional { font-size: 46px; }
.tablero.n6 .celda .provisional { font-size: 16px; }

.tablero.n7 { grid-template-columns: repeat(7, 58px); }
.tablero.n7 .celda { width: 58px; height: 58px; --tamano-objeto: 36px; }
.tablero.n7 .celda .personaje-fijo { font-size: 44px; }
.tablero.n7 .celda .provisionales.single .provisional { font-size: 40px; }
.tablero.n7 .celda .provisional { font-size: 14px; }

.tablero.n8 { grid-template-columns: repeat(8, 52px); }
.tablero.n8 .celda { width: 52px; height: 52px; --tamano-objeto: 32px; }
.tablero.n8 .celda .personaje-fijo { font-size: 40px; }
.tablero.n8 .celda .provisionales.single .provisional { font-size: 36px; }
.tablero.n8 .celda .provisional { font-size: 13px; }

/* ─── Botonera y resultado ─── */
.botonera {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 18px;
}
.botonera button {
  padding: 10px 18px;
  background: var(--panel-alt);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.15s;
}
.botonera button:hover { background: #3a4049; }
.botonera button.primary {
  background: var(--accent);
  color: #1a1d23;
  border-color: var(--accent-dark);
  font-weight: 600;
}
.botonera button.primary:hover { background: #edc65a; }

.resultado {
  margin: 18px auto 0;
  max-width: 640px;
  padding: 16px 20px;
  border-radius: 8px;
  line-height: 1.5;
}
.resultado.oculto { display: none; }
.resultado.exito {
  background: rgba(123, 191, 106, 0.15);
  border: 1px solid var(--ok);
}
.resultado.fallo {
  background: rgba(217, 106, 106, 0.15);
  border: 1px solid var(--danger);
}
.resultado h3 { margin: 0 0 8px 0; }
.resultado ul { margin: 6px 0 0 18px; padding: 0; }

/* ─── Paneles laterales ─── */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  height: fit-content;
  position: sticky;
  top: 90px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}
.panel h3 {
  margin: 0 0 10px 0;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.panel h3:not(:first-child) { margin-top: 18px; }

/* Panel izquierdo — objetos del escenario */
.panel-objetos .objetos {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}
.panel-objetos .objetos li {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 10px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
}
.panel-objetos .objetos .emoji { font-size: 22px; }

/* Panel derecho — personajes y pistas */
.personajes {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.personaje-item {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  cursor: pointer;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  transition: background 0.15s, border-color 0.15s;
}
.personaje-item:hover { background: #353a42; }
.personaje-item.seleccionado {
  border-color: var(--accent);
  background: rgba(224, 184, 74, 0.15);
  box-shadow: 0 0 0 1px var(--accent);
}
.personaje-item.colocado {
  opacity: 0.7;
  cursor: default;
}
.personaje-item.colocado:hover { background: var(--panel-alt); }

.personaje-item .avatar { font-size: 28px; line-height: 1; }
.personaje-item .info { flex: 1; min-width: 0; }
.personaje-item .nombre {
  font-weight: 600;
  display: flex; gap: 6px; align-items: center;
  flex-wrap: wrap;
}
.personaje-item .rol {
  font-size: 10px;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 3px;
  letter-spacing: 0.5px;
}
.rol.sospechoso { background: #5a4210; color: var(--accent); }
.rol.victima    { background: #5a1a1a; color: #ff9999; }

.estado-indicador {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-weight: 600;
}
.estado-sin  { background: #3a3f47; color: var(--muted); }
.estado-prov { background: #5a4210; color: var(--accent); }
.estado-fijo { background: #285a28; color: #9cf09c; }

.personaje-item .descripcion {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}
.personaje-item .pista {
  margin-top: 6px;
  font-size: 13px;
  font-style: italic;
  color: #d4d0c7;
}
.personaje-item .acciones {
  margin-top: 8px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.personaje-item .btn-mini {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 3px;
  font-size: 11px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.personaje-item .btn-mini:hover {
  color: var(--text);
  border-color: var(--muted);
}

.pie {
  text-align: center;
  color: var(--muted);
  padding: 16px;
  border-top: 1px solid var(--border);
  margin-top: 24px;
}

/* ─── Toast ─── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel-alt);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  z-index: 100;
  font-size: 13px;
  animation: toast-in 0.2s ease-out;
}
@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}