/* ============================================================
   GESTO·DJ — estilos.css
   Layout de pantallas, landing, atmósfera, carga y HUD.
   ============================================================ */

/* ============================ Atmósfera global ============================ */
.atmosfera{ position:fixed; inset:0; z-index:var(--z-atmosfera); pointer-events:none; }

.atmosfera-halo{
  position:absolute; inset:-20%;
  background:
    radial-gradient(60% 50% at 50% 38%, rgba(var(--acento-1-rgb),.10), transparent 70%),
    radial-gradient(45% 40% at 72% 78%, rgba(var(--acento-2-rgb),.08), transparent 70%);
  filter:blur(8px);
  transition:background var(--t-lenta) var(--ease);
}
.atmosfera-vineta{
  position:absolute; inset:0;
  background:radial-gradient(120% 100% at 50% 42%, transparent 52%, rgba(0,0,0,.55) 100%);
}
.atmosfera-grano{
  position:absolute; inset:0; opacity:.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================ Pantallas ============================ */
.pantalla{
  position:fixed; inset:0; z-index:var(--z-pantalla);
  display:flex; align-items:center; justify-content:center;
  padding:clamp(20px,4vw,56px);
}
.pantalla.activa{ animation:pantalla-in var(--t-lenta) var(--ease) both; }

/* Rejilla de perspectiva del landing (synthwave tenue) */
.grid-perspectiva{
  position:absolute; left:50%; bottom:0; width:200%; height:55%;
  transform:translateX(-50%) perspective(420px) rotateX(64deg);
  transform-origin:bottom center;
  background-image:
    linear-gradient(to right, rgba(var(--acento-1-rgb),.18) 1px, transparent 1px),
    linear-gradient(to top,   rgba(var(--acento-1-rgb),.14) 1px, transparent 1px);
  background-size:60px 60px;
  mask-image:linear-gradient(to top, #000 0%, transparent 78%);
  -webkit-mask-image:linear-gradient(to top, #000 0%, transparent 78%);
  opacity:.5;
  animation:grid-correr 7s linear infinite;
}

/* ============================ Landing ============================ */
.landing{
  position:relative; z-index:1;
  display:flex; flex-direction:column; align-items:center; text-align:center;
  gap:clamp(20px,3vh,34px);
  max-width:640px; width:100%;
}

.landing-marca{ display:flex; flex-direction:column; align-items:center; gap:14px; }

.marca-kicker{
  font-size:12px; letter-spacing:.34em; text-transform:uppercase;
  color:var(--txt-3); font-weight:500;
}

.logo{
  font-family:var(--fuente-display); font-weight:900;
  font-size:clamp(52px,11vw,108px); letter-spacing:.02em; line-height:.9;
  color:#fff;
  text-shadow:0 0 30px rgba(var(--acento-1-rgb),.55), 0 0 80px rgba(var(--acento-1-rgb),.25);
  animation:logo-latido 4.5s var(--ease-suave) infinite;
}
.logo-sep{
  color:var(--acento-2);
  text-shadow:0 0 30px rgba(var(--acento-2-rgb),.7);
  margin:0 .02em;
}

.tagline{ font-size:clamp(15px,2.2vw,19px); color:var(--txt-2); font-weight:300; letter-spacing:.01em; }

/* Botón principal */
.btn-iniciar{
  position:relative; display:inline-flex; align-items:center; gap:14px;
  padding:18px 34px; border-radius:var(--radio-lg);
  font-size:17px; font-weight:600; letter-spacing:.02em; color:#fff;
  background:linear-gradient(180deg, rgba(var(--acento-1-rgb),.16), rgba(var(--acento-2-rgb),.10));
  box-shadow:var(--glow-1), inset 0 0 0 1px rgba(var(--acento-1-rgb),.4);
  transition:transform var(--t-rapida) var(--ease), box-shadow var(--t-media) var(--ease);
  overflow:hidden;
}
.btn-iniciar:hover{ transform:translateY(-2px) scale(1.015); box-shadow:0 0 38px rgba(var(--acento-1-rgb),.75), inset 0 0 0 1px rgba(var(--acento-1-rgb),.7); }
.btn-iniciar:active{ transform:translateY(0) scale(.99); }
.btn-iniciar-borde{
  position:absolute; inset:0; border-radius:inherit; padding:1px;
  background:linear-gradient(120deg, var(--acento-1), transparent 40%, var(--acento-2));
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude;
  opacity:.8;
}
.btn-iniciar-ico{ display:grid; place-items:center; width:26px; height:26px; color:var(--acento-1); }
.btn-iniciar-ico svg{ width:24px; height:24px; }

/* Features */
.landing-features{
  display:flex; gap:14px; flex-wrap:wrap; justify-content:center; width:100%;
}
.feature{
  flex:1 1 170px; min-width:160px;
  display:flex; align-items:center; gap:12px; text-align:left;
  padding:14px 16px; border-radius:var(--radio);
  background:var(--glass); border:1px solid var(--glass-borde);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
}
.feature-ico{ flex:none; display:grid; place-items:center; width:38px; height:38px; border-radius:10px;
  background:rgba(var(--acento-1-rgb),.10); color:var(--acento-1); box-shadow:inset 0 0 0 1px rgba(var(--acento-1-rgb),.2); }
.feature-ico svg{ width:22px; height:22px; }
.feature div{ display:flex; flex-direction:column; gap:2px; }
.feature b{ font-size:14px; font-weight:600; color:var(--txt-1); }
.feature span{ font-size:12px; color:var(--txt-3); line-height:1.3; }

/* Privacidad */
.privacidad{
  display:inline-flex; align-items:center; gap:10px;
  font-size:13px; color:var(--txt-2); max-width:480px; line-height:1.4;
}
.privacidad strong{ color:var(--txt-1); font-weight:600; }
.privacidad-ico{ flex:none; color:var(--acento-1); opacity:.8; }
.privacidad-ico svg{ width:18px; height:18px; }

.landing-error{
  margin-top:4px; padding:12px 16px; border-radius:var(--radio-sm);
  background:rgba(180,30,60,.16); border:1px solid rgba(255,80,110,.4);
  color:#ffd0d8; font-size:13px; max-width:460px;
}

/* ============================ Carga / Calibración ============================ */
.carga{ display:flex; flex-direction:column; align-items:center; gap:22px; max-width:420px; width:100%; text-align:center; }
.carga-anillo{ position:relative; width:64px; height:64px; }
.carga-anillo span{
  position:absolute; inset:0; border-radius:50%;
  border:2px solid transparent; border-top-color:var(--acento-1);
  animation:girar 1.1s linear infinite;
}
.carga-anillo span:nth-child(2){ inset:8px; border-top-color:var(--acento-2); animation-duration:1.5s; animation-direction:reverse; }
.carga-anillo span:nth-child(3){ inset:16px; border-top-color:rgba(255,255,255,.5); animation-duration:1.9s; }

.carga-titulo{ font-size:20px; font-weight:500; letter-spacing:.01em; }
.barra{ width:100%; height:4px; border-radius:99px; background:rgba(255,255,255,.08); overflow:hidden; }
.barra-fill{ width:0%; height:100%; border-radius:99px;
  background:linear-gradient(90deg, var(--acento-1), var(--acento-2));
  box-shadow:0 0 14px rgba(var(--acento-1-rgb),.7);
  transition:width var(--t-media) var(--ease); }
.carga-detalle{ font-size:13px; color:var(--txt-3); letter-spacing:.02em; }

.calibracion{ margin-top:8px; display:flex; flex-direction:column; align-items:center; gap:10px; }
.calibracion-txt{ font-size:15px; color:var(--txt-2); }
.calibracion-cuenta{ font-family:var(--fuente-display); font-size:72px; font-weight:700; color:#fff;
  text-shadow:0 0 32px rgba(var(--acento-1-rgb),.7); }

/* ============================ HUD superior ============================ */
.hud-top{
  position:fixed; top:0; left:0; right:0; z-index:var(--z-hud);
  display:flex; align-items:center; gap:10px;
  padding:16px clamp(16px,3vw,28px);
}
.chip{
  display:inline-flex; align-items:center; gap:8px;
  padding:7px 13px; border-radius:99px;
  background:var(--glass); border:1px solid var(--glass-borde);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  font-size:12px; font-weight:500; letter-spacing:.04em; color:var(--txt-2);
}
.chip-genero{ color:var(--acento-1); box-shadow:inset 0 0 0 1px rgba(var(--acento-1-rgb),.25); text-transform:uppercase; }
.chip-mono{ font-family:var(--fuente-display); letter-spacing:.06em; }
.chip-fps{ margin-left:auto; }
.chip-loops{ color:var(--acento-2); box-shadow:inset 0 0 0 1px rgba(var(--acento-2-rgb),.3);
  font-weight:600; letter-spacing:.1em; }
.chip-btn{ cursor:pointer; font-weight:700; letter-spacing:.12em; color:var(--txt-2);
  transition:all var(--t-rapida); }
.chip-btn:hover:not(:disabled){ color:var(--acento-1); border-color:rgba(var(--acento-1-rgb),.45);
  box-shadow:0 0 14px rgba(var(--acento-1-rgb),.2); }
.chip-btn:disabled{ opacity:.35; cursor:not-allowed; }
.chip-btn[data-busy="true"]{ color:var(--acento-2); border-color:rgba(var(--acento-2-rgb),.45);
  animation:pulso-vivo 1.2s var(--ease-suave) infinite; }

.punto-estado{ width:8px; height:8px; border-radius:50%; background:var(--txt-3); transition:background var(--t-rapida); }
.chip[data-activo="true"] .punto-estado{ background:var(--acento-1); box-shadow:0 0 10px var(--acento-1); }

/* Chip de acorde: contexto musical en vivo */
.chip-acorde{ color:var(--txt-1); min-width:64px; justify-content:center; }

/* Pulso de compás en el chip de BPM */
.chip.beat{ box-shadow:inset 0 0 0 1px rgba(var(--acento-1-rgb),.65), 0 0 16px rgba(var(--acento-1-rgb),.35); }

/* Feed de eventos musicales (feedback inmediato de gestos) */
.eventos{ position:fixed; top:58px; left:50%; transform:translateX(-50%);
  z-index:var(--z-hud); display:flex; flex-direction:column; align-items:center; gap:6px;
  pointer-events:none; }
.evento{ padding:6px 16px; border-radius:99px; font-size:11px; font-weight:700;
  letter-spacing:.18em; color:var(--txt-1);
  background:var(--glass-fuerte); border:1px solid rgba(var(--acento-2-rgb),.45);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  box-shadow:0 0 18px rgba(var(--acento-2-rgb),.25);
  animation:evento-vida 1.5s var(--ease) forwards; }
@keyframes evento-vida{
  0%{ opacity:0; transform:translateY(-6px) scale(.92); }
  14%,72%{ opacity:1; transform:translateY(0) scale(1); }
  100%{ opacity:0; transform:translateY(8px) scale(.96); }
}

/* Selector de variante A | B | FILL */
.variantes{ display:flex; gap:2px; padding:2px; border-radius:9px;
  background:rgba(255,255,255,.05); border:1px solid var(--glass-borde); }
.var-btn{ padding:5px 11px; border-radius:7px; font-size:10px; font-weight:700;
  letter-spacing:.1em; color:var(--txt-3); transition:all var(--t-rapida); }
.var-btn:hover{ color:var(--txt-1); }
.var-btn.activo{ color:#fff; background:rgba(var(--acento-1-rgb),.22);
  box-shadow:inset 0 0 0 1px rgba(var(--acento-1-rgb),.5), 0 0 10px rgba(var(--acento-1-rgb),.25); }
.var-btn[data-v="FILL"].activo{ color:#fff; background:rgba(var(--acento-2-rgb),.25);
  box-shadow:inset 0 0 0 1px rgba(var(--acento-2-rgb),.55), 0 0 10px rgba(var(--acento-2-rgb),.3); }

/* Accesibilidad: foco visible con teclado */
:focus-visible{ outline:2px solid rgba(var(--acento-1-rgb),.8); outline-offset:2px; border-radius:6px; }

/* Inmersión: el cursor se oculta tras unos segundos sin moverse */
body.en-escena.sin-cursor, body.en-escena.sin-cursor *{ cursor:none !important; }

.gestos-atajos{ margin-top:10px; font-size:11px; color:var(--txt-3); text-align:center; letter-spacing:.04em; }
.gestos-atajos b{ color:var(--txt-2); font-weight:600; }

.hint-sin-deteccion{
  position:fixed; bottom:42%; left:50%; transform:translateX(-50%); z-index:var(--z-hud);
  padding:10px 18px; border-radius:99px; font-size:14px; color:var(--txt-2);
  background:var(--glass); border:1px solid var(--glass-borde);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  animation:pulso-suave 2.4s var(--ease-suave) infinite;
}

/* ============================ Visor de cámara real ============================ */
/* Detrás de la animación (z 1): la silueta a pantalla completa (#lienzo, z 3)
   pasa por encima. Pequeño y discreto, solo para ubicarte. */
.visor-cam{
  position:fixed; left:50%; bottom:178px;
  transform:translateX(-50%) translateY(10px);
  width:clamp(112px,13vw,156px); aspect-ratio:4/3;
  border-radius:12px; overflow:hidden; z-index:1;
  background:#05010f;
  border:1px solid rgba(var(--acento-1-rgb),.28);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.04),
    0 0 16px rgba(var(--acento-1-rgb),.16),
    0 10px 30px rgba(0,0,0,.5);
  opacity:0; pointer-events:none;
  transition:opacity var(--t-media) var(--ease), transform var(--t-media) var(--ease),
             border-color var(--t-lenta) var(--ease), box-shadow var(--t-lenta) var(--ease);
}
body.en-escena .visor-cam{ opacity:.82; transform:translateX(-50%) translateY(0); }

.visor-cam video{
  width:100%; height:100%; object-fit:cover;
  transform:scaleX(-1); /* espejo: tu reflejo natural */
  display:block;
}
body.sin-espejo .visor-cam video{ transform:scaleX(1); }
/* La silueta (capa de efecto) pasa por encima del visor. */
#lienzo{ z-index:3; }

/* Corchetes de esquina */
.visor-cam::before,.visor-cam::after{
  content:""; position:absolute; width:11px; height:11px; pointer-events:none;
  border:1.5px solid var(--acento-1); opacity:.85;
}
.visor-cam::before{ top:5px; left:5px; border-right:none; border-bottom:none; border-radius:3px 0 0 0; }
.visor-cam::after{ bottom:5px; right:5px; border-left:none; border-top:none; border-radius:0 0 3px 0; }

.visor-vivo{
  position:absolute; top:5px; right:6px; z-index:2;
  display:inline-flex; align-items:center; gap:4px;
  font-size:7px; font-weight:700; letter-spacing:.14em; color:var(--txt-1);
  padding:1.5px 5px; border-radius:4px; background:rgba(5,2,14,.5);
  backdrop-filter:blur(5px); -webkit-backdrop-filter:blur(5px);
}
.visor-vivo i{ width:4px; height:4px; border-radius:50%; background:#46e6a0;
  box-shadow:0 0 6px #46e6a0; animation:pulso-vivo 1.6s var(--ease-suave) infinite; }
@keyframes pulso-vivo{ 0%,100%{ opacity:1; } 50%{ opacity:.35; } }

/* ============================ Panel DJ ============================ */
.panel{
  position:fixed; left:50%; bottom:0; transform:translateX(-50%);
  width:min(1100px, calc(100vw - 24px)); z-index:2; /* detrás de la silueta (#lienzo z3) */
  margin-bottom:12px; padding:4px 18px 10px;
  border-radius:var(--radio-lg);
  background:var(--glass-fuerte); border:1px solid var(--glass-borde);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  box-shadow:0 18px 50px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.04);
  transition:transform var(--t-media) var(--ease), opacity var(--t-media) var(--ease);
}
.panel-handle{
  display:block; width:46px; height:5px; margin:2px auto 8px;
  border-radius:99px; background:rgba(255,255,255,.18);
  transition:background var(--t-rapida);
}
.panel-handle:hover{ background:rgba(var(--acento-1-rgb),.6); }
.panel.colapsado{ transform:translateX(-50%) translateY(calc(100% - 26px)); }
.panel.colapsado .panel-grid,.panel.colapsado .panel-acciones{ display:none; }

.panel-grid{
  display:grid; grid-template-columns:auto 1fr 1.3fr 1fr auto; gap:16px; align-items:center;
}
/* Columnas de acciones a los lados */
.lado{ display:flex; flex-direction:column; gap:8px; justify-content:center; }
.lado .btn-accion{ white-space:nowrap; text-align:center; }
.lado .accion-sel{ flex-direction:column; align-items:stretch; gap:3px; }
.lado .accion-sel select{ width:100%; }

/* Decks */
.deck{ display:flex; flex-direction:column; gap:8px; }
.deck-cab{ display:flex; align-items:baseline; gap:8px; }
.deck-cab span{ font-size:11px; font-weight:700; letter-spacing:.16em; color:var(--txt-1); }
.deck-cab i{ font-size:10px; font-style:normal; color:var(--txt-3); letter-spacing:.04em; }
.deck-cuerpo{ display:flex; gap:16px; align-items:center; }

/* Faders verticales */
.fader{ display:flex; flex-direction:column; align-items:center; gap:6px; }
.fader>label{ font-size:9px; letter-spacing:.12em; color:var(--txt-3); }
.fader-pista{
  position:relative; width:6px; height:74px; border-radius:99px;
  background:rgba(255,255,255,.08); overflow:visible;
}
.fader-rango{
  position:absolute; left:0; bottom:0; width:100%; height:calc(var(--v,0.8) * 100%);
  border-radius:99px; background:linear-gradient(180deg, var(--acento-1), rgba(var(--acento-1-rgb),.4));
  box-shadow:0 0 10px rgba(var(--acento-1-rgb),.5);
}
.fader-tope{
  position:absolute; left:50%; bottom:calc(var(--v,0.8) * 100%);
  width:16px; height:16px; border-radius:50%; transform:translate(-50%,50%);
  background:#0c0820; border:1.5px solid var(--acento-1);
  box-shadow:0 0 10px rgba(var(--acento-1-rgb),.6);
}

/* Knobs */
.knobs{ display:flex; gap:14px; }
.knob-wrap{ display:flex; flex-direction:column; align-items:center; gap:5px; }
.knob{
  position:relative; width:40px; height:40px; border-radius:50%; cursor:ns-resize;
  background:radial-gradient(circle at 50% 38%, #1a1330, #0a0718);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:inset 0 2px 4px rgba(0,0,0,.5), 0 0 0 1px rgba(var(--acento-1-rgb),.12);
}
.knob::after{
  content:""; position:absolute; inset:0; border-radius:50%;
  box-shadow:0 0 0 2px rgba(var(--acento-1-rgb),0); transition:box-shadow var(--t-rapida);
}
.knob[data-manual="true"]::after{ box-shadow:0 0 0 2px rgba(var(--acento-2-rgb),.5); }
.knob-dial{
  position:absolute; left:50%; top:50%; width:2px; height:14px; border-radius:2px;
  background:var(--acento-1); transform-origin:50% 100%;
  transform:translate(-50%,-100%) rotate(var(--ang,-135deg));
  box-shadow:0 0 6px var(--acento-1);
}
.knob-wrap label{ font-size:9px; letter-spacing:.1em; color:var(--txt-3); }

/* Centro */
.centro{ display:flex; flex-direction:column; gap:7px; }
.centro-top{ display:flex; gap:12px; align-items:flex-end; }
.campo{ display:flex; flex-direction:column; gap:4px; }
.campo>label{ font-size:9px; letter-spacing:.14em; color:var(--txt-3); }
.bpm-campo{ flex:1; }
.select-wrap{ position:relative; }
#sel-genero,#sel-sens{
  appearance:none; background:rgba(255,255,255,.05); color:var(--txt-1);
  border:1px solid var(--glass-borde); border-radius:8px; padding:6px 10px; font-size:12px;
  letter-spacing:.02em; cursor:pointer;
}
.bpm-fila{ display:flex; align-items:center; gap:8px; }
.bpm-num{ font-family:var(--fuente-display); font-size:20px; font-weight:700; color:#fff;
  min-width:46px; text-shadow:0 0 14px rgba(var(--acento-1-rgb),.5); }

/* Sliders horizontales (BPM, crossfader) */
input[type="range"]{ width:100%; height:4px; border-radius:99px;
  background:rgba(255,255,255,.12); cursor:pointer; }
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none; width:16px; height:16px; border-radius:50%;
  background:#0c0820; border:1.5px solid var(--acento-1);
  box-shadow:0 0 10px rgba(var(--acento-1-rgb),.6);
}
input[type="range"]::-moz-range-thumb{
  width:16px; height:16px; border-radius:50%; background:#0c0820;
  border:1.5px solid var(--acento-1); box-shadow:0 0 10px rgba(var(--acento-1-rgb),.6);
}
.bpm-fila input[type="range"]{ flex:1; }

/* Mini-rejilla del secuenciador */
.secuenciador{ display:flex; align-items:center; gap:10px; }
.canales-ind{ display:flex; flex-direction:column; gap:2px; }
.canal-ind{ font-size:8px; font-weight:700; letter-spacing:.08em; color:var(--txt-3);
  padding:2px 6px; border-radius:5px; background:rgba(255,255,255,.04);
  border:1px solid transparent; text-align:right; min-width:40px; transition:all var(--t-rapida); }
.canal-ind[data-mute="true"]{ color:#ff7088; border-color:rgba(255,90,120,.35); opacity:.7; text-decoration:line-through; }
.canal-ind:not([data-mute="true"]):hover{ color:var(--acento-1); }
.seq-grid{ display:grid; grid-template-columns:repeat(16,1fr); grid-template-rows:repeat(4,1fr);
  gap:2px; flex:1; height:46px; }
.seq-cell{ border-radius:2px; background:rgba(255,255,255,.05); transition:background .08s linear; }
.seq-cell.on{ background:rgba(var(--acento-1-rgb),.55); box-shadow:0 0 5px rgba(var(--acento-1-rgb),.5); }
.seq-cell.on.acc{ background:var(--acento-2); box-shadow:0 0 7px var(--acento-2); }
.seq-cell.col{ outline:1px solid rgba(255,255,255,.5); }
.seq-cell.muted{ opacity:.28; }

.crossfader{ display:flex; align-items:center; gap:10px; }
.crossfader span{ font-size:11px; font-weight:700; color:var(--txt-2); letter-spacing:.1em; }

.centro-bottom{ display:flex; align-items:center; justify-content:center; gap:16px; }
.btn-redondo{
  display:grid; place-items:center; width:46px; height:46px; border-radius:50%;
  background:linear-gradient(180deg, rgba(var(--acento-1-rgb),.18), rgba(var(--acento-2-rgb),.10));
  box-shadow:var(--glow-1), inset 0 0 0 1px rgba(var(--acento-1-rgb),.4);
  transition:transform var(--t-rapida) var(--ease);
}
.btn-redondo:hover{ transform:scale(1.06); }
.btn-redondo svg{ width:22px; height:22px; fill:#fff; }

.loops{ display:flex; gap:7px; }
.loop-pip{ width:13px; height:13px; border-radius:50%;
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.14);
  transition:all var(--t-rapida) var(--ease); }
.loop-pip[data-activo="true"]{ background:var(--acento-2);
  border-color:var(--acento-2); box-shadow:0 0 12px var(--acento-2); }

/* VU */
.vu{ width:8px; height:48px; border-radius:99px; background:rgba(255,255,255,.08);
  overflow:hidden; align-self:flex-end; }
.vu-fill{ position:absolute; bottom:0; width:100%; height:0%;
  background:linear-gradient(180deg, var(--acento-2), var(--acento-1)); }
.vu{ position:relative; }

/* Botones chip / acción */
.btn-chip{ padding:7px 12px; border-radius:8px; font-size:10px; font-weight:700;
  letter-spacing:.1em; color:var(--txt-1); background:rgba(255,255,255,.06);
  border:1px solid var(--glass-borde); transition:all var(--t-rapida); }
.btn-chip:hover{ background:rgba(var(--acento-1-rgb),.16); }
.btn-panico{ color:#ffb4c0; border-color:rgba(255,90,120,.3); }
.btn-panico:hover{ background:rgba(255,60,90,.18); }

.panel-acciones{ display:flex; align-items:center; justify-content:center; gap:10px;
  margin-top:12px; padding-top:12px; border-top:1px solid var(--linea); }
.btn-accion{ padding:7px 14px; border-radius:8px; font-size:10px; font-weight:700;
  letter-spacing:.12em; color:var(--txt-2); background:rgba(255,255,255,.05);
  border:1px solid var(--glass-borde); transition:all var(--t-rapida); }
.btn-accion:hover:not(:disabled){ color:var(--txt-1); background:rgba(var(--acento-1-rgb),.14); }
.btn-accion:disabled{ opacity:.4; cursor:not-allowed; }
.btn-accion[data-on="true"]{ color:var(--acento-1); border-color:rgba(var(--acento-1-rgb),.4); }
.btn-accion.grabando{ color:#ff6e8a; border-color:rgba(255,90,120,.6);
  background:rgba(255,60,90,.16); animation:pulso-vivo 1s var(--ease-suave) infinite; }
.accion-sel{ display:flex; align-items:center; gap:6px; }
.accion-sel label{ font-size:9px; letter-spacing:.12em; color:var(--txt-3); }

.btn-expandir{ position:fixed; left:50%; bottom:12px; transform:translateX(-50%);
  z-index:var(--z-panel); padding:8px 18px; border-radius:99px; font-size:11px;
  font-weight:700; letter-spacing:.14em; color:var(--acento-1);
  background:var(--glass-fuerte); border:1px solid rgba(var(--acento-1-rgb),.3);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur)); }

/* Bandeja de fondos 3D */
.fondos-tray{ position:fixed; right:14px; bottom:60px; z-index:var(--z-hud);
  display:flex; flex-direction:column; gap:6px; padding:10px;
  border-radius:var(--radio); background:var(--glass-fuerte);
  border:1px solid var(--glass-borde);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  box-shadow:0 14px 40px rgba(0,0,0,.5);
  animation:pantalla-in var(--t-rapida) var(--ease); }
.fondo-card{ padding:8px 16px; border-radius:9px; font-size:10px; font-weight:700;
  letter-spacing:.14em; color:var(--txt-2); text-align:left;
  background:rgba(255,255,255,.04); border:1px solid transparent;
  transition:all var(--t-rapida); }
.fondo-card:hover{ color:var(--txt-1); background:rgba(var(--acento-1-rgb),.12); }
.fondo-card.activo{ color:var(--acento-1); border-color:rgba(var(--acento-1-rgb),.4);
  box-shadow:0 0 12px rgba(var(--acento-1-rgb),.18); }

/* Controles de esquina (inferior izquierda) */
.esquina-controles{ position:fixed; left:14px; bottom:14px; z-index:var(--z-hud);
  display:flex; gap:8px; }
.esq-btn{ padding:9px 14px; border-radius:10px; font-size:10px; font-weight:700;
  letter-spacing:.12em; color:var(--txt-2); background:var(--glass-fuerte);
  border:1px solid var(--glass-borde);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  transition:all var(--t-rapida); }
.esq-btn:hover{ color:var(--txt-1); }
.esq-btn[data-on="true"]{ color:var(--acento-1); border-color:rgba(var(--acento-1-rgb),.4);
  box-shadow:0 0 14px rgba(var(--acento-1-rgb),.18); }

/* Ocultar cámara */
body.cam-oculta .visor-cam{ opacity:0 !important; pointer-events:none; }

/* ============================ Overlay gestos ============================ */
.overlay{ position:fixed; inset:0; z-index:var(--z-overlay);
  display:grid; place-items:center; padding:24px;
  background:rgba(3,1,10,.74); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  animation:pantalla-in var(--t-media) var(--ease); }
.overlay-card{ position:relative; width:min(860px,100%); max-height:86vh; overflow:auto;
  padding:30px 32px; border-radius:var(--radio-lg);
  background:var(--glass-fuerte); border:1px solid var(--glass-borde);
  box-shadow:0 30px 80px rgba(0,0,0,.6); }
.overlay-card h2{ font-size:22px; margin-bottom:20px; letter-spacing:.01em; }
.overlay-cerrar{ position:absolute; top:18px; right:20px; width:32px; height:32px;
  border-radius:50%; font-size:20px; color:var(--txt-2); background:rgba(255,255,255,.06); }
.overlay-cerrar:hover{ color:#fff; background:rgba(255,255,255,.12); }
.gestos-cols{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.gestos-cols h3{ font-size:12px; letter-spacing:.1em; text-transform:uppercase;
  color:var(--acento-1); margin-bottom:12px; padding-bottom:8px; border-bottom:1px solid var(--linea); }
.gestos-cols ul{ list-style:none; display:flex; flex-direction:column; gap:11px; }
.gestos-cols li{ display:flex; flex-direction:column; gap:1px; }
.gestos-cols li b{ font-size:12.5px; font-weight:600; color:var(--txt-1); }
.gestos-cols li span{ font-size:11.5px; color:var(--txt-3); }
.gestos-pie{ margin-top:22px; padding-top:16px; border-top:1px solid var(--linea);
  font-size:12px; color:var(--txt-2); text-align:center; }

/* Toast */
.toast{ position:fixed; top:64px; left:50%; transform:translateX(-50%); z-index:var(--z-overlay);
  padding:11px 20px; border-radius:99px; font-size:13px; color:var(--txt-1);
  background:var(--glass-fuerte); border:1px solid rgba(var(--acento-1-rgb),.35);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  box-shadow:0 0 24px rgba(var(--acento-1-rgb),.22);
  animation:toast-vida 2.6s var(--ease) forwards; }
@keyframes toast-vida{ 0%{opacity:0;transform:translateX(-50%) translateY(-8px);} 12%,80%{opacity:1;transform:translateX(-50%) translateY(0);} 100%{opacity:0;transform:translateX(-50%) translateY(-8px);} }

/* Tutorial contextual */
.tutorial-tip{ position:fixed; z-index:var(--z-hud); padding:10px 16px; border-radius:12px;
  font-size:13px; color:var(--txt-1); background:var(--glass-fuerte);
  border:1px solid rgba(var(--acento-1-rgb),.3);
  backdrop-filter:blur(var(--blur)); -webkit-backdrop-filter:blur(var(--blur));
  box-shadow:0 0 24px rgba(var(--acento-1-rgb),.2);
  animation:tip-vida 4.4s var(--ease) forwards; pointer-events:none; }
@keyframes tip-vida{ 0%{opacity:0;transform:translateY(8px);} 12%,76%{opacity:1;transform:translateY(0);} 100%{opacity:0;transform:translateY(-8px);} }

/* ============================ Responsive ============================ */
@media (max-width:760px){
  .panel-grid{ grid-template-columns:1fr; gap:10px; }
  .deck{ display:none; }
  .visor-cam{ bottom:200px; }
  .panel-acciones{ flex-wrap:wrap; }
}

/* ============================ Responsive (landing) ============================ */
@media (max-width:560px){
  .landing-features{ flex-direction:column; }
  .feature{ width:100%; }
  .logo{ font-size:clamp(46px,16vw,72px); }
  .marca-kicker{ letter-spacing:.22em; font-size:11px; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
}