/* Estilos comunes de los juegos arcade de Matemáticas Activas */
:root{--fondo:#120b2e;--panel:rgba(20,12,52,.86);--borde:rgba(167,139,250,.35);--texto:#f5f3ff;--suave:#c4b5fd;--neon:#22d3ee;--rosa:#f472b6;--oro:#fbbf24;--ok:#34d399;--mal:#fb7185}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--fondo);color:var(--texto);font-family:Nunito,system-ui,sans-serif;overflow:hidden;overscroll-behavior:none}
#juego{position:fixed;inset:0;touch-action:none}
canvas{display:block;width:100%;height:100%}
button{font-family:inherit;cursor:pointer}
.hud{position:absolute;left:0;right:0;top:0;display:flex;justify-content:space-between;align-items:flex-start;padding:max(10px,env(safe-area-inset-top)) 12px 0;pointer-events:none;gap:8px}
.hud .caja{background:var(--panel);border:1px solid var(--borde);border-radius:14px;padding:6px 12px;backdrop-filter:blur(6px);pointer-events:auto}
.puntaje{font-family:"Baloo 2";font-weight:800;font-size:26px;line-height:1}
.puntaje small{display:block;font-family:Nunito;font-size:11px;font-weight:700;color:var(--suave);letter-spacing:.5px;text-transform:uppercase}
.vidas{font-size:20px;letter-spacing:2px}
.der{display:flex;gap:6px}
.icono{width:40px;height:40px;border-radius:12px;background:var(--panel);border:1px solid var(--borde);color:var(--texto);font-size:18px;display:grid;place-items:center;pointer-events:auto}
.pregunta{position:absolute;left:50%;top:calc(max(10px,env(safe-area-inset-top)) + 54px);transform:translateX(-50%);background:linear-gradient(135deg,rgba(124,58,237,.92),rgba(219,39,119,.9));border:2px solid rgba(255,255,255,.35);border-radius:18px;padding:8px 22px 6px;font-family:"Baloo 2";font-weight:800;font-size:clamp(26px,6.5vw,44px);text-align:center;box-shadow:0 10px 30px rgba(124,58,237,.45);pointer-events:none;white-space:nowrap;transition:transform .15s}
.pregunta.pop{transform:translateX(-50%) scale(1.08)}
.combo{position:absolute;left:50%;top:calc(max(10px,env(safe-area-inset-top)) + 122px);transform:translateX(-50%);font-family:"Baloo 2";font-weight:800;font-size:18px;color:var(--oro);text-shadow:0 2px 10px rgba(251,191,36,.6);pointer-events:none;opacity:0;transition:opacity .2s}
.aviso{position:absolute;left:50%;top:40%;transform:translate(-50%,-50%) scale(.6);font-family:"Baloo 2";font-weight:800;font-size:clamp(34px,9vw,64px);color:#fff;text-shadow:0 4px 24px rgba(34,211,238,.8);opacity:0;pointer-events:none;transition:all .35s cubic-bezier(.2,1.6,.4,1);white-space:nowrap}
.aviso.ver{opacity:1;transform:translate(-50%,-50%) scale(1)}
.flechas{position:absolute;left:0;right:0;bottom:max(14px,env(safe-area-inset-bottom));display:none;justify-content:space-between;padding:0 14px;pointer-events:none}
.flechas button{pointer-events:auto;width:72px;height:72px;border-radius:50%;border:2px solid rgba(255,255,255,.25);background:rgba(20,12,52,.55);color:#fff;font-size:30px;backdrop-filter:blur(4px)}
.flechas button:active{background:rgba(124,58,237,.7)}
@media (pointer:coarse){.flechas{display:flex}}
.pantalla{position:absolute;inset:0;display:none;align-items:center;justify-content:center;padding:16px;background:radial-gradient(ellipse at 50% 30%,rgba(124,58,237,.35),rgba(18,11,46,.92) 70%);overflow:auto}
.pantalla.ver{display:flex}
.tarjeta{width:100%;max-width:560px;background:var(--panel);border:1px solid var(--borde);border-radius:24px;padding:22px 20px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.45);margin:auto}
.logo{font-family:"Baloo 2";font-weight:800;font-size:clamp(40px,11vw,64px);line-height:1;background:linear-gradient(90deg,var(--neon),#a78bfa,var(--rosa));-webkit-background-clip:text;background-clip:text;color:transparent;margin:4px 0 2px}
.sub{color:var(--suave);font-weight:700;margin:0 0 16px}
.temas{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:16px}
.tema{background:rgba(255,255,255,.06);border:2px solid rgba(255,255,255,.12);border-radius:16px;padding:12px 10px;color:var(--texto);text-align:center;transition:transform .12s,border-color .12s}
.tema:hover{transform:translateY(-2px)}
.tema.sel{border-color:var(--neon);background:rgba(34,211,238,.14);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.tema b{display:block;font-family:"Baloo 2";font-size:18px}
.tema span{font-size:12.5px;color:var(--suave)}
.tema i{font-style:normal;font-size:26px;display:block}
.tema em{font-style:normal;display:block;font-size:11.5px;color:var(--oro);margin-top:2px;font-weight:800}
.btn{border:0;border-radius:16px;padding:14px 26px;font-family:"Baloo 2";font-weight:800;font-size:20px;color:#fff;background:linear-gradient(135deg,#7c3aed,#db2777);box-shadow:0 8px 24px rgba(219,39,119,.4);transition:transform .12s}
.btn:hover{transform:translateY(-2px)}
.btn.sec{background:rgba(255,255,255,.1);box-shadow:none;font-size:16px;padding:11px 18px;display:inline-flex;align-items:center;justify-content:center}
.botones{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.ayuda{font-size:13px;color:var(--suave);margin:14px 0 0;line-height:1.5}
.kbd{display:inline-block;border:1px solid var(--borde);border-radius:6px;padding:0 6px;font-weight:800;color:#fff}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}
.stat{background:rgba(255,255,255,.06);border-radius:14px;padding:10px 6px}
.stat b{display:block;font-family:"Baloo 2";font-size:26px;line-height:1.1}
.stat span{font-size:12px;color:var(--suave)}
.record{color:var(--oro);font-weight:800;min-height:22px}
.repaso{text-align:left;background:rgba(255,255,255,.05);border-radius:14px;padding:10px 14px;margin:0 0 14px;font-size:14.5px}
.repaso h4{margin:0 0 6px;font-size:14px;color:var(--suave)}
.repaso li{margin:3px 0}
.repaso .ok{color:var(--ok);font-weight:800}
.repaso .mal{color:var(--mal);text-decoration:line-through}
.cuenta{font-size:13.5px;color:var(--suave);margin:0 0 14px;min-height:20px}
.cuenta b{color:var(--ok)}
.volver{position:absolute;top:max(12px,env(safe-area-inset-top));left:12px;color:var(--suave);text-decoration:none;font-weight:800;font-size:14px;background:var(--panel);border:1px solid var(--borde);border-radius:12px;padding:8px 12px;z-index:2}
.oculto{display:none!important}
@media (prefers-reduced-motion:reduce){.aviso,.pregunta{transition:none}}