/* Visor 3D (visor.html): la pieza a pantalla completa, sus capas, la luz y la ficha. */

body { overflow: hidden; }
canvas.escena { position: fixed; inset: 0; touch-action: none; display: block; z-index: 0;
                cursor: grab; }
canvas.escena:active { cursor: grabbing; }
.topbar { position: fixed; left: 0; right: 0; top: 0; }

#consigna { position: fixed; left: 0; right: 0; top: var(--bar-h); z-index: 12;
            padding: 16px var(--gutter) 20px; text-align: center; pointer-events: none;
            background: linear-gradient(180deg, rgba(22,17,12,.9), transparent); }
#consigna h1 { font-size: clamp(20px, 5vw, 28px); }
#consigna p { margin: 6px auto 0; max-width: 470px; font-size: 14px; color: var(--sand-300); }

#capas { display: flex; gap: 6px; justify-content: center; margin-top: 12px; flex-wrap: wrap;
         pointer-events: auto; }
#capas .chip { cursor: pointer; border: 1px solid transparent; }
#capas .chip[aria-pressed="false"] { background: transparent; color: var(--sand-500);
                                     border-color: var(--line); }
#capas .sep { width: 1px; align-self: stretch; background: var(--line); margin: 2px 4px; }
#capas .chip.no { opacity: .4; }

/* dial de luz, para pantallas sin sensor */
#dial { position: fixed; right: 14px; bottom: 92px; z-index: 15; width: 92px; height: 92px;
        border-radius: 50%; border: 1px solid var(--line); background: rgba(33,26,18,.72);
        backdrop-filter: blur(10px); cursor: pointer; display: none; }
#dial.on { display: block; }
#dial .rayo { position: absolute; left: 50%; top: 50%; width: 40px; height: 2px;
              background: linear-gradient(90deg, var(--ochre), transparent); transform-origin: 0 50%; }
#dial .centro { position: absolute; left: 50%; top: 50%; width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px;
                border-radius: 50%; background: var(--ochre); }
#dial span { position: absolute; left: 0; right: 0; bottom: -18px; text-align: center;
             font-size: 10.5px; color: var(--sand-500); letter-spacing: .05em; }

/* panel de ajuste: no lo ve el visitante, sólo aparece con ?debug=1 */
#ajuste { position: fixed; left: 12px; top: calc(var(--bar-h) + 12px); z-index: 20; width: 230px;
          background: var(--glass-bg); backdrop-filter: var(--glass-blur); padding: 12px;
          border: 1px solid var(--line); border-radius: var(--radius); font-size: 12px; }
#ajuste b { display: block; color: var(--cream); margin-bottom: 8px; font-size: 12px; }
#ajuste label { display: flex; justify-content: space-between; color: var(--sand-500);
                font-size: 11px; margin: 8px 0 3px; }
#ajuste input[type=range] { width: 100%; accent-color: var(--ochre); }
#ajuste .btn { width: 100%; margin-top: 10px; padding: 8px; font-size: 12px; }
#ajuste pre { margin: 8px 0 0; font-size: 10px; color: var(--sand-500); white-space: pre-wrap;
              word-break: break-all; max-height: 120px; overflow: auto; }

#detalle { position: fixed; left: 50%; bottom: 70px; transform: translateX(-50%); z-index: 16;
           animation: latido 1.6s ease-in-out infinite; }
@keyframes latido { 50% { opacity: .45; } }

#zoom { position: fixed; right: 12px; top: calc(var(--bar-h) + 96px); z-index: 15;
        display: flex; flex-direction: column; gap: 6px; }
#zoom .btn { width: 44px; height: 44px; padding: 0; font-size: 18px; line-height: 1;
             background: var(--glass-bg); backdrop-filter: var(--glass-blur); }

#hoja { position: fixed; left: 0; right: 0; bottom: 0; z-index: 14;
        background: var(--glass-bg); backdrop-filter: var(--glass-blur);
        border-top: 1px solid var(--line);
        padding: 14px var(--gutter) calc(14px + env(safe-area-inset-bottom));
        transform: translateY(calc(100% - 62px)); transition: transform .32s cubic-bezier(.3,.8,.3,1); }
#hoja.abierta { transform: translateY(0); }
/* leyendo la ficha nadie esta ajustando la luz: los controles flotantes estorban */
#dial, #zoom { transition: opacity var(--t-base); }
body.leyendo #dial, body.leyendo #zoom { opacity: 0; pointer-events: none; }
/* la agarradera es la unica superficie de abajo: se toca o se arrastra, no hay boton */
#tirador { cursor: grab; touch-action: none; padding-bottom: 2px; }
#tirador:active { cursor: grabbing; }
#tirador .raya { display: block; width: 38px; height: 4px; border-radius: 4px;
                 background: var(--line); margin: 0 auto 9px; }
#tirador .fila { display: flex; align-items: center; gap: 10px; min-height: 34px; }
#tirador b { font-family: var(--serif); font-weight: 600; color: var(--cream); font-size: 15px;
             overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#tirador .pista { margin-left: auto; font-size: 12px; color: var(--sand-500); white-space: nowrap; }
#tirador .btn { margin-left: 10px; padding: 9px 14px; font-size: 13px; flex: none; }
/* con el boton del molde al lado, en pantalla angosta la pista sobra */
@media (max-width: 430px) { #tirador .pista { display: none; } }
#hoja .cita { font-size: 14.5px; color: var(--cream); margin: 6px 0 14px; }
#hoja .cita small { display: block; color: var(--sand-500); font-size: 11.5px;
                    letter-spacing: .04em; margin-top: 5px; }

/* lista de piezas cuando se entra al visor sin elegir ninguna */
.elegir { position: fixed; inset: 0; z-index: 30; overflow: auto; background: var(--soil);
          padding: calc(var(--bar-h) + 24px) 0 40px; }
.elegir h1 { margin-bottom: 6px; }
.elegir .rejilla { display: grid; gap: 12px; margin-top: 18px;
                   grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.elegir a[href*="visor"] { display: block; text-decoration: none; background: var(--soil-mid);
                           border: 1px solid var(--line); border-radius: var(--radius-lg);
                           overflow: hidden; transition: border-color var(--t-fast), transform var(--t-fast); }
.elegir a[href*="visor"]:hover { border-color: var(--ochre); transform: translateY(-2px); }
.elegir img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block;
              border-bottom: 1px solid var(--line); }
.elegir b { display: block; padding: 10px 12px 0; font-family: var(--serif); font-weight: 600;
            color: var(--cream); font-size: 14.5px; }
.elegir span { display: block; padding: 2px 12px 12px; font-size: 12px; color: var(--sand-500); }

#cargando { position: fixed; inset: 0; z-index: 40; display: grid; place-items: center;
            background: var(--soil); color: var(--sand-500); font-size: 13.5px; transition: opacity .4s; }