:root{
  --bg:#efe6d8; --card:#fffdf8; --line:#ebdfd0; --accent:#c56b2b; --accent-dark:#9e511b;
  --text:#243131; --muted:#6f706b; --green:#1f7f60;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Arial, sans-serif;
}
*{box-sizing:border-box}
body{margin:0;overflow:hidden;background:var(--bg);color:var(--text)}
#escena{position:fixed;inset:0}
canvas{display:block}
.barra{position:fixed;top:14px;left:14px;right:14px;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;border-radius:18px;background:#fffffff2;box-shadow:0 15px 40px rgba(31,23,11,.14);backdrop-filter: blur(10px);border:1px solid rgba(255,255,255,.6)}
.marca{display:flex;align-items:center;gap:12px}
.logo{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#ef8d3d,#b05317);display:grid;place-items:center;color:#fff;font-weight:900}
.marca small{display:block;color:var(--muted)}
.acciones{display:flex;align-items:center;gap:10px}
.ayudatexto{font-size:12px;color:var(--muted)}
.btn{border:0;border-radius:12px;padding:11px 15px;font-weight:800;cursor:pointer}
.primario{background:var(--accent);color:#fff}.primario:hover{background:var(--accent-dark)}
.secundario{background:#eff1f2;color:#2c4547}
.mensaje{position:fixed;top:86px;left:50%;transform:translateX(-50%);z-index:16;padding:11px 16px;background:rgba(22,34,37,.86);color:#fff;border-radius:999px;box-shadow:0 10px 30px rgba(0,0,0,.15);font-size:13px;max-width:85vw;text-align:center;pointer-events:none}
.cruz{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);z-index:9;color:#ffffffa8;font-size:28px;text-shadow:0 2px 6px rgba(0,0,0,.5);pointer-events:none}
.oculto{display:none !important}
.catalogo,.carrito,.panel-producto{position:fixed;z-index:30;background:var(--card);box-shadow:0 24px 80px rgba(28,20,6,.22);border-radius:24px;border:1px solid var(--line)}
.catalogo{left:16px;top:90px;bottom:16px;width:min(660px,calc(100vw - 32px));padding:22px;overflow:auto}
.panel-producto{right:18px;bottom:18px;width:min(370px,calc(100vw - 36px));padding:20px}
.carrito{right:18px;top:90px;bottom:18px;width:min(370px,calc(100vw - 36px));padding:20px;display:flex;flex-direction:column}
.panel-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.panel-head h2{margin:.2rem 0 .35rem}.eyebrow{font-size:11px;letter-spacing:1.3px;color:var(--accent);font-weight:900;margin:0}
.cerrar{border:0;background:#f0f1f2;width:36px;height:36px;border-radius:50%;font-size:24px;cursor:pointer;flex-shrink:0}
.membresia-box,.puntos-resumen{display:flex;gap:12px;align-items:center;padding:12px;border-radius:16px;background:linear-gradient(180deg,#fff6dd,#fffdf8);border:1px solid #f1e2b9;margin:16px 0}
.membresia-box img,.puntos-resumen img{width:120px;max-width:36%;object-fit:contain}
.membresia-box p,.puntos-resumen small{margin:.3rem 0;color:var(--muted)}
.grilla-productos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.tarjeta{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column}
.tarjeta img{width:100%;height:160px;object-fit:cover;background:#f3eee7}
.tarjeta .contenido{padding:13px;display:flex;flex-direction:column;gap:6px}
.tarjeta h3{margin:0;font-size:16px}.tarjeta small{color:var(--muted)}.tarjeta strong{color:var(--accent-dark)}
.foto-principal{width:100%;height:220px;object-fit:contain;background:#f8f1e5;border-radius:14px;border:1px solid var(--line)}
.descripcion{color:var(--muted);line-height:1.45}
.ficha-linea,.total-linea{display:flex;justify-content:space-between;gap:8px;padding:10px 0;border-bottom:1px solid #efe5d8}
.ancho{width:100%;margin-top:14px;font-size:15px}
.items{overflow:auto;flex:1;margin-top:10px}
.item{display:flex;gap:10px;padding:12px 0;border-bottom:1px solid #efe5d8}
.item img{width:58px;height:58px;border-radius:12px;object-fit:cover;background:#f3ede4}
.item .detalle{flex:1}.item .detalle strong{display:block;font-size:14px}.item .detalle small{display:block;color:var(--muted);margin-top:4px}
.cantidad{display:flex;align-items:center;gap:6px;margin-top:7px}.cantidad button{border:0;background:#f0efe8;width:28px;height:28px;border-radius:8px;cursor:pointer;font-weight:900}
.puntos-chip{display:inline-flex;align-items:center;gap:6px;background:#f4f1e4;border:1px solid #ebdfbe;padding:6px 9px;border-radius:999px;font-size:12px;color:#6a5c2c}
.nota{font-size:12px;color:var(--muted);text-align:center;line-height:1.4;margin-top:12px}
.ayuda-movil{display:none}
@media (max-width:860px){
  .barra{top:8px;left:8px;right:8px;padding:10px}
  .marca strong{font-size:13px}
  .marca small{font-size:10px;max-width:180px}
  .ayudatexto{display:none}
  .catalogo{top:72px;bottom:10px;left:8px;width:calc(100vw - 16px);padding:16px}
  .carrito{top:72px;bottom:10px;right:8px;width:calc(100vw - 16px);padding:16px}
  .panel-producto{right:8px;bottom:138px;width:calc(100vw - 16px);padding:16px}
  .grilla-productos{grid-template-columns:1fr}
  .tarjeta img{height:132px}
  .mensaje{top:72px;font-size:11px}
  .ayuda-movil{display:block;position:fixed;left:10px;bottom:12px;z-index:18;touch-action:none}
  .ayuda-movil .fila{display:flex;justify-content:center;gap:6px}.ayuda-movil button{width:52px;height:48px;border:1px solid rgba(255,255,255,.7);border-radius:12px;background:rgba(255,255,255,.9);font-size:22px}
  .ayuda-movil small{display:block;color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.7);text-align:center;font-size:10px;margin-top:4px}
}

/* Edición showroom moderno */
:root{--accent:#127e9b;--accent-dark:#0a607a;--bg:#e7eff3;--line:#d7e5ec}
.barra{border:1px solid #dbeaf0;box-shadow:0 12px 48px #173c5930}
.logo{background:linear-gradient(135deg,#0b678b,#1ac1b0)}
.mensaje{background:#0e354adf}
.catalogo,.carrito,.panel-producto{background:#fbfdff}
.puntos-chip{background:#e6f6f8;border-color:#bfe7ec;color:#116678}

/* Selector de unidades en ficha del producto */
.selector-unidades{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-top:1px solid #eee3d3;margin-top:12px;font-weight:800}
.selector-controles{display:flex;align-items:center;gap:6px;background:#f6f0e7;border:1px solid #e9dac8;border-radius:12px;padding:5px}
.selector-controles button{width:36px;height:36px;border:0;border-radius:9px;background:#fff;color:#9e511b;font-size:23px;font-weight:800;cursor:pointer}
.selector-controles input{width:52px;text-align:center;font:700 17px inherit;border:0;background:transparent;color:#243131;appearance:textfield;-moz-appearance:textfield}
.selector-controles input::-webkit-inner-spin-button,.selector-controles input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}

/* Responsive integral: mantiene controles, fichas y checkout dentro del viewport */
html,body{width:100%;height:100%;overscroll-behavior:none}
body{overflow:hidden}
#escena{width:100vw;height:100dvh;overflow:hidden;touch-action:none}
.barra,.marca,.acciones,.panel-head,.item,.item .detalle{min-width:0}
.marca{flex:1}.marca>div:last-child{min-width:0}
.marca strong{display:block;overflow-wrap:anywhere;line-height:1.25}
.catalogo,.carrito,.panel-producto{max-height:calc(100dvh - 108px)}
.panel-producto{overflow-y:auto;overscroll-behavior:contain}
.carrito .items{min-height:0;overflow-y:auto}
.btn,.cerrar,.selector-controles button{touch-action:manipulation}
.toast-carrito{position:fixed;z-index:100;top:96px;left:50%;transform:translate(-50%,-12px);max-width:calc(100vw - 32px);width:max-content;background:#147c5d;color:white;box-shadow:0 15px 45px #002b2033;border-radius:14px;padding:14px 20px;font-size:14px;font-weight:750;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .24s, transform .24s, visibility .24s;text-align:center}
.toast-carrito.visible{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast-carrito.error{background:#b63737}
@media(max-width:860px){
 .barra{top:0;left:0;right:0;border-radius:0 0 16px 16px;padding:calc(8px + env(safe-area-inset-top)) 10px 10px;flex-wrap:wrap;gap:7px}
 .marca{width:100%;flex-basis:100%;gap:8px}
 .marca strong{font-size:clamp(11px,3.25vw,14px);line-height:1.2}
 .marca small{font-size:10px;max-width:none}
 .logo{width:34px;height:34px;flex-shrink:0}
 .acciones{width:100%;justify-content:flex-end;gap:8px}
 .acciones .btn{padding:9px 12px;font-size:12px;flex:1}
 .acciones .btn:last-child{flex:1}
 .mensaje{top:calc(110px + env(safe-area-inset-top));font-size:11px;padding:8px 12px;max-width:calc(100vw - 20px)}
 .catalogo,.carrito{inset:auto 0 0 0;width:100%;max-width:100%;height:min(82dvh,900px);max-height:calc(100dvh - 126px - env(safe-area-inset-top));border-radius:20px 20px 0 0;padding:16px 16px calc(16px + env(safe-area-inset-bottom));}
 .catalogo{overflow-y:auto}
 .carrito{display:flex;flex-direction:column;overflow:hidden}
 .carrito .items{flex:1;min-height:38px}
 .panel-producto{left:0;right:0;bottom:0;width:100%;max-width:100%;max-height:calc(100dvh - 124px - env(safe-area-inset-top));padding:16px 16px calc(16px + env(safe-area-inset-bottom));border-radius:22px 22px 0 0;overflow-y:auto;overscroll-behavior:contain}
 .foto-principal{height:clamp(120px,25dvh,220px);object-fit:contain}
 .panel-producto h2{font-size:20px;line-height:1.2;margin:8px 0}
 .panel-producto .descripcion{font-size:13px;margin:6px 0}
 .grilla-productos{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
 .tarjeta img{height:130px;object-fit:contain}
 .tarjeta .contenido{padding:10px;gap:5px}
 .tarjeta h3{font-size:13px;overflow-wrap:anywhere}
 .tarjeta .btn{padding:10px 6px;font-size:12px}
 .puntos-chip{font-size:10px;white-space:normal}
 .puntos-resumen{margin:8px 0;padding:8px}
 .puntos-resumen img{width:84px}
 .item img{width:48px;height:48px;flex-shrink:0}
 .item .detalle strong{overflow-wrap:anywhere}
 .cantidad{flex-wrap:wrap}
 .total-linea{padding:6px 0;font-size:13px}
 .carrito .ancho{margin-top:10px;flex-shrink:0}
 .carrito .nota{margin:7px 0 0;font-size:10px;flex-shrink:0}
 .ayuda-movil{bottom:calc(10px + env(safe-area-inset-bottom));left:8px}
 .ayuda-movil button{width:46px;height:42px}
 .toast-carrito{top:calc(120px + env(safe-area-inset-top));font-size:12px;padding:11px 14px}
 .selector-unidades{flex-wrap:wrap}
}
@media(max-width:380px){.grilla-productos{grid-template-columns:1fr}.tarjeta{flex-direction:row}.tarjeta img{width:115px;height:auto;min-height:140px}.tarjeta .contenido{flex:1}.marca small{display:none}}
@media(max-height:620px) and (orientation:landscape){
 .barra{flex-wrap:nowrap}.marca{flex-basis:auto}.acciones{width:auto}
 .mensaje{display:none}
 .catalogo,.carrito{top:65px;right:8px;bottom:8px;left:auto;width:min(420px,55vw);height:auto;max-height:none;border-radius:18px}
 .panel-producto{top:65px;right:8px;left:auto;bottom:8px;width:min(390px,60vw);max-height:none;border-radius:18px}
 .foto-principal{height:90px}.ayuda-movil button{width:40px;height:34px}
 .toast-carrito{top:68px}
}