/* ============================================================
   MusiKit — piel común de los juegos de Educación Musical
   de El Aula de Fran. No depende de ningún framework.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@500;700;800&family=Fredoka:wght@400;500;600;700&display=swap');

:root{
  --mk-acento: #c99aff;
  --mk-acento2: #64e6ff;
  --mk-tinta: #f4eeff;
  --mk-suave: #b9aed6;
  --mk-fondo: #150b28;
  --mk-panel: rgba(255,255,255,.075);
  --mk-borde: rgba(255,255,255,.16);
  --mk-ok: #5ce6a5;
  --mk-mal: #ff7a93;
  --mk-oro: #ffd166;
  --mk-sombra: 0 18px 44px rgba(0,0,0,.45);
  --mk-radio: 22px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:'Fredoka', system-ui, sans-serif;
  color:var(--mk-tinta);
  background:var(--mk-fondo);
  overflow:hidden;
  -webkit-tap-highlight-color:transparent;
  user-select:none;
}
h1,h2,h3,.mk-titular{ font-family:'Baloo 2', system-ui, sans-serif; font-weight:800; letter-spacing:.4px; margin:0; }

/* ---------- Fondo vivo ---------- */
#mk-cielo{ position:fixed; inset:0; z-index:0; display:block; }
#mk-cielo + .mk-velo{
  position:fixed; inset:0; z-index:1; pointer-events:none;
  background:
    radial-gradient(900px 620px at 12% 8%, color-mix(in srgb, var(--mk-acento) 30%, transparent), transparent 62%),
    radial-gradient(760px 560px at 88% 12%, color-mix(in srgb, var(--mk-acento2) 24%, transparent), transparent 60%),
    radial-gradient(1000px 700px at 50% 108%, rgba(255,209,102,.14), transparent 60%);
}

/* ---------- Estructura ---------- */
.mk-app{ position:relative; z-index:2; height:100dvh; display:flex; flex-direction:column; }
.mk-pantalla{ flex:1; min-height:0; display:none; flex-direction:column; }
.mk-pantalla.activa{ display:flex; animation:mkEntra .45s cubic-bezier(.2,.9,.3,1.2) both; }
@keyframes mkEntra{ from{ opacity:0; transform:translateY(18px) scale(.985);} to{ opacity:1; transform:none;} }

.mk-centro{ flex:1; min-height:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:18px; padding:22px; overflow:auto; }

/* ---------- Panel de cristal ---------- */
.mk-vidrio{
  background:var(--mk-panel);
  border:1px solid var(--mk-borde);
  border-radius:var(--mk-radio);
  box-shadow:var(--mk-sombra);
  backdrop-filter:blur(14px) saturate(1.2);
}

/* ---------- Portada ---------- */
.mk-portada{ width:min(980px,96vw); padding:26px clamp(18px,3vw,38px) 30px; text-align:center; }
.mk-emoji{ font-size:clamp(54px,9vw,86px); line-height:1; filter:drop-shadow(0 10px 22px rgba(0,0,0,.5)); animation:mkFlota 3.6s ease-in-out infinite; }
@keyframes mkFlota{ 0%,100%{ transform:translateY(0) rotate(-4deg);} 50%{ transform:translateY(-14px) rotate(4deg);} }
.mk-portada h1{ font-size:clamp(30px,6vw,54px); margin:6px 0 4px;
  background:linear-gradient(100deg,#fff,var(--mk-acento) 45%,var(--mk-acento2));
  -webkit-background-clip:text; background-clip:text; color:transparent; }
.mk-lema{ color:var(--mk-suave); font-size:clamp(14px,2.2vw,18px); margin:0 auto 6px; max-width:62ch; }
.mk-chip-contenido{
  display:inline-flex; align-items:center; gap:8px; margin:10px 0 4px; padding:7px 16px; border-radius:999px;
  background:color-mix(in srgb, var(--mk-acento) 26%, transparent);
  border:1px solid color-mix(in srgb, var(--mk-acento) 55%, transparent);
  font-weight:600; font-size:14px;
}

.mk-bloque{ margin-top:20px; }
.mk-bloque > .mk-rotulo{ font-size:13px; letter-spacing:1.6px; text-transform:uppercase; color:var(--mk-suave); margin-bottom:9px; font-weight:600; }

.mk-rejilla{ display:flex; flex-wrap:wrap; gap:9px; justify-content:center; }

.mk-opcion{
  cursor:pointer; border:1px solid var(--mk-borde); background:rgba(255,255,255,.06);
  color:var(--mk-tinta); font-family:inherit; font-weight:600; font-size:15px;
  padding:11px 17px; border-radius:15px; transition:transform .16s, background .16s, border-color .16s, box-shadow .16s;
  display:flex; align-items:center; gap:8px;
}
.mk-opcion:hover{ transform:translateY(-3px); background:rgba(255,255,255,.12); }
.mk-opcion[aria-pressed="true"]{
  background:linear-gradient(135deg, var(--mk-acento), var(--mk-acento2));
  color:#1a0f2e; border-color:transparent; box-shadow:0 10px 24px color-mix(in srgb, var(--mk-acento) 45%, transparent);
}
.mk-opcion small{ display:block; font-weight:500; opacity:.75; font-size:11px; }

/* ---------- Botones ---------- */
.mk-btn{
  cursor:pointer; font-family:'Baloo 2',sans-serif; font-weight:800; font-size:19px;
  padding:14px 34px; border-radius:18px; border:none; color:#1a0f2e;
  background:linear-gradient(135deg,#ffe08a,var(--mk-oro));
  box-shadow:0 8px 0 rgba(0,0,0,.32), 0 18px 34px rgba(0,0,0,.35);
  transition:transform .12s, box-shadow .12s, filter .2s;
}
.mk-btn:hover{ filter:brightness(1.06); }
.mk-btn:active{ transform:translateY(6px); box-shadow:0 2px 0 rgba(0,0,0,.32); }
.mk-btn.mk-btn-2{ background:linear-gradient(135deg,var(--mk-acento),var(--mk-acento2)); }
.mk-btn.mk-fantasma{ background:rgba(255,255,255,.09); color:var(--mk-tinta); box-shadow:none; border:1px solid var(--mk-borde); font-size:16px; padding:11px 22px; }
.mk-btn:disabled{ opacity:.45; cursor:not-allowed; }

/* ---------- HUD ---------- */
.mk-hud{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  padding:9px 14px; margin:10px; border-radius:16px;
  background:rgba(10,5,22,.5); border:1px solid var(--mk-borde); backdrop-filter:blur(10px);
}
.mk-hud .mk-dato{ display:flex; align-items:center; gap:7px; font-weight:600; font-size:15px; padding:4px 10px; border-radius:11px; background:rgba(255,255,255,.06); }
.mk-hud .mk-dato b{ font-family:'Baloo 2',sans-serif; font-size:18px; }
.mk-hud .mk-espacio{ flex:1; }
.mk-icono-btn{
  cursor:pointer; width:40px; height:40px; border-radius:12px; display:grid; place-items:center;
  background:rgba(255,255,255,.08); border:1px solid var(--mk-borde); color:var(--mk-tinta); font-size:18px;
  transition:transform .15s, background .15s;
}
.mk-icono-btn:hover{ transform:translateY(-2px); background:rgba(255,255,255,.16); }

.mk-barra{ height:10px; border-radius:999px; background:rgba(255,255,255,.12); overflow:hidden; min-width:120px; flex:1; max-width:280px; }
.mk-barra > i{ display:block; height:100%; width:100%; border-radius:999px; background:linear-gradient(90deg,var(--mk-ok),var(--mk-oro),var(--mk-mal)); transition:width .2s linear; }

/* ---------- Escenario ---------- */
.mk-escena{ flex:1; min-height:0; position:relative; margin:0 10px 10px; border-radius:var(--mk-radio); overflow:hidden;
  border:1px solid var(--mk-borde); background:rgba(8,4,18,.35); }
.mk-escena > canvas{ position:absolute; inset:0; width:100%; height:100%; display:block; }
.mk-capa{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:flex-end; gap:12px; padding:16px; pointer-events:none; }
.mk-capa > *{ pointer-events:auto; }

#mk-consigna{ margin-bottom:auto; }
.mk-consigna{
  align-self:center; margin:0 auto; padding:10px 22px; border-radius:999px; font-weight:600; font-size:clamp(15px,2.4vw,21px);
  background:rgba(10,5,22,.62); border:1px solid var(--mk-borde); backdrop-filter:blur(8px); text-align:center;
}

/* ---------- Respuestas ---------- */
.mk-respuestas{ display:flex; flex-wrap:wrap; gap:10px; justify-content:center; }
.mk-carta{
  cursor:pointer; min-width:118px; padding:14px 18px; border-radius:18px; font-family:'Baloo 2',sans-serif; font-weight:700;
  font-size:19px; color:var(--mk-tinta); background:rgba(255,255,255,.09); border:1px solid var(--mk-borde);
  box-shadow:0 8px 20px rgba(0,0,0,.3); transition:transform .15s, background .15s, box-shadow .15s;
  display:flex; flex-direction:column; align-items:center; gap:4px;
}
.mk-carta .mk-ico{ font-size:32px; line-height:1.1; }
.mk-carta:hover:not(:disabled){ transform:translateY(-5px) scale(1.03); background:rgba(255,255,255,.16); }
.mk-carta:disabled{ cursor:default; }
.mk-carta.bien{ background:linear-gradient(135deg,#3fd39a,#1f9e73); color:#04231a; border-color:transparent; animation:mkBien .5s; }
.mk-carta.mal{ background:linear-gradient(135deg,#ff8fa5,#d8455f); color:#340a12; border-color:transparent; animation:mkMal .45s; }
.mk-carta.tenue{ opacity:.38; }
@keyframes mkBien{ 0%{ transform:scale(1);} 45%{ transform:scale(1.16) rotate(-2deg);} 100%{ transform:scale(1);} }
@keyframes mkMal{ 0%,100%{ transform:translateX(0);} 20%{ transform:translateX(-9px);} 40%{ transform:translateX(9px);} 60%{ transform:translateX(-6px);} 80%{ transform:translateX(5px);} }

/* ---------- Panel «¿Por qué?» ---------- */
.mk-porque{
  width:min(700px,94%); padding:15px 20px 18px; display:flex; flex-direction:column; gap:11px;
  align-items:center; text-align:left; background:rgba(10,5,22,.80);
  animation:mkEntra .35s cubic-bezier(.2,.9,.3,1.2) both;
}
.mk-porque-tit{ font-family:'Baloo 2',sans-serif; font-weight:800; font-size:19px; color:var(--mk-oro); align-self:flex-start; }
.mk-porque-txt{ font-size:clamp(14px,2.1vw,17px); line-height:1.55; color:var(--mk-tinta); }
.mk-porque-txt b{ color:var(--mk-oro); }
.mk-porque .mk-btn{ font-size:17px; padding:11px 26px; }
.mk-porque-txt{ max-height:46dvh; overflow:auto; }
.mk-capa.mk-con-porque > #mk-respuestas,
.mk-capa.mk-con-porque > .mk-medidor{ display:none; }

/* ---------- Avisos flotantes ---------- */
#mk-avisos{ position:fixed; inset:0; z-index:60; pointer-events:none; display:grid; place-items:center; }
.mk-aviso{
  position:absolute; font-family:'Baloo 2',sans-serif; font-weight:800; font-size:clamp(30px,7vw,64px);
  text-shadow:0 6px 18px rgba(0,0,0,.6); animation:mkSube 1.05s cubic-bezier(.2,.9,.3,1) forwards; white-space:nowrap;
}
@keyframes mkSube{ 0%{ opacity:0; transform:translateY(30px) scale(.6);} 22%{ opacity:1; transform:translateY(0) scale(1.12);} 70%{ opacity:1; transform:translateY(-12px) scale(1);} 100%{ opacity:0; transform:translateY(-70px) scale(.95);} }

/* ---------- Modales ---------- */
.mk-modal{ position:fixed; inset:0; z-index:70; display:none; align-items:center; justify-content:center; padding:18px; background:rgba(6,3,14,.72); backdrop-filter:blur(6px); }
.mk-modal.activo{ display:flex; animation:mkEntra .3s both; }
.mk-modal .mk-caja{ width:min(640px,96vw); max-height:88dvh; overflow:auto; padding:26px 28px; text-align:left; }
.mk-modal h2{ font-size:26px; margin-bottom:10px; }
.mk-modal p, .mk-modal li{ color:var(--mk-suave); font-size:16px; line-height:1.6; }
.mk-modal ul{ padding-left:20px; }

/* ---------- Final ---------- */
.mk-estrellas{ font-size:clamp(38px,8vw,64px); letter-spacing:8px; }
.mk-estrellas span{ display:inline-block; opacity:.22; animation:mkEstrella .6s cubic-bezier(.2,.9,.3,1.6) both; }
.mk-estrellas span.on{ opacity:1; filter:drop-shadow(0 0 16px var(--mk-oro)); }
@keyframes mkEstrella{ from{ transform:scale(0) rotate(-60deg);} to{ transform:none;} }
.mk-marcador{ font-family:'Baloo 2',sans-serif; font-size:clamp(44px,10vw,80px); line-height:1;
  background:linear-gradient(100deg,var(--mk-oro),#fff 60%,var(--mk-acento2)); -webkit-background-clip:text; background-clip:text; color:transparent; }

/* ---------- Sensores ---------- */
#mk-video{ position:fixed; inset:0; width:100%; height:100%; object-fit:cover; transform:scaleX(-1); z-index:0; opacity:0; transition:opacity .6s; }
#mk-video.visible{ opacity:.55; }
body.mk-camara #mk-cielo{ opacity:.35; }

.mk-medidor{ width:min(420px,90vw); height:16px; border-radius:999px; background:rgba(255,255,255,.1); overflow:hidden; border:1px solid var(--mk-borde); }
.mk-medidor > i{ display:block; height:100%; width:0%; background:linear-gradient(90deg,var(--mk-acento2),var(--mk-ok),var(--mk-oro),var(--mk-mal)); transition:width .06s linear; }

.mk-sensor-aviso{ display:flex; flex-direction:column; align-items:center; gap:12px; padding:20px 26px; text-align:center; }
.mk-sensor-aviso .mk-emoji{ font-size:52px; }

/* ---------- Utilidades ---------- */
.mk-oculto{ display:none !important; }
.mk-fila{ display:flex; gap:12px; flex-wrap:wrap; justify-content:center; align-items:center; }
.mk-pista{ color:var(--mk-suave); font-size:14px; }
.mk-pulso{ animation:mkPulso 1.4s ease-in-out infinite; }
@keyframes mkPulso{ 0%,100%{ transform:scale(1);} 50%{ transform:scale(1.07);} }

@media (max-width:640px){
  .mk-carta{ min-width:98px; padding:12px 14px; font-size:17px; }
  .mk-hud{ margin:7px; padding:7px 10px; gap:7px; }
  .mk-hud .mk-dato{ font-size:13px; padding:3px 8px; }
}