:root{
  --verde:#0e7c4a; --verde-osc:#0a5d38; --dorado:#c0912b; --dorado-cl:#e6c15f;
  --crema:#f4efe4; --tinta:#1c2a22; --gris:#6b7b70; --linea:#e4e8e2;
  --rojo:#d64522; --ambar:#e0952b;
  --sombra:0 6px 24px rgba(20,40,30,.10);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:#f7f6f1;color:var(--tinta);-webkit-font-smoothing:antialiased}
.app{max-width:520px;margin:0 auto;background:#fff;min-height:100vh;box-shadow:var(--sombra)}

/* topbar */
.topbar{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--linea);position:sticky;top:0;background:#fff;z-index:5}
.crest svg{width:38px;height:38px;display:block}
.brand{display:flex;align-items:center;gap:10px}
.brand-name{font-weight:800;font-size:16px;letter-spacing:.2px}
.brand-year{color:var(--dorado)}
.brand-sub{display:block;font-size:11px;color:var(--gris);letter-spacing:.4px;text-transform:uppercase}

/* foto */
.photo{position:relative;aspect-ratio:4/5;overflow:hidden;background:#eef2f0}
.photo img{width:100%;height:100%;object-fit:cover;display:block}
.badge-criollo{position:absolute;top:12px;left:12px;background:rgba(14,124,74,.95);color:#fff;font-weight:700;font-size:13px;padding:6px 12px;border-radius:999px;box-shadow:var(--sombra)}

/* info */
.info{padding:16px 18px 32px}
.title-line{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.title{font-size:26px;margin:0;font-weight:800}
.lote{background:var(--crema);color:var(--verde-osc);font-weight:700;font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--dorado-cl)}
.origen{display:flex;align-items:center;gap:6px;color:var(--gris);font-size:13px;margin:6px 0 0}
.origen svg{color:var(--verde);flex:none}
.specs{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 0}
.spec{font-size:12px;font-weight:600;color:var(--verde-osc);background:var(--crema);border:1px solid var(--dorado-cl);padding:4px 10px;border-radius:999px}
.spec-note{font-size:12.5px;color:var(--gris);line-height:1.45;margin:8px 0 0}
.spec-note strong{color:var(--tinta)}

/* FOMO fuel loader */
.fuel{margin:18px 0 4px;padding:14px;border-radius:14px;background:linear-gradient(180deg,#fff,#fbfaf5);border:1px solid var(--linea)}
.fuel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.fuel-label{font-size:14px}
.fuel-count{font-weight:800;font-variant-numeric:tabular-nums;font-size:15px}
.fuel-gauge{position:relative;height:20px;border-radius:999px;background:#eceee9;overflow:hidden;box-shadow:inset 0 1px 3px rgba(0,0,0,.12)}
.fuel-fill{position:absolute;inset:0 auto 0 0;height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--verde),#37a86a);
  transition:width .8s cubic-bezier(.2,.7,.2,1),background .8s}
.fuel-fill::after{content:"";position:absolute;inset:0;border-radius:999px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
  background-size:60% 100%;background-repeat:no-repeat;animation:shine 2.2s linear infinite}
@keyframes shine{0%{background-position:-60% 0}100%{background-position:160% 0}}
.fuel-ticks{position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,transparent 0,transparent calc(10% - 1px),rgba(255,255,255,.35) 10%);pointer-events:none}
.fuel.mid .fuel-fill{background:linear-gradient(90deg,var(--ambar),#f0b64a)}
.fuel.low .fuel-fill{background:linear-gradient(90deg,var(--rojo),#f0743f)}
.fuel.low{border-color:#f3c9bd;background:linear-gradient(180deg,#fff,#fff5f1);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 4px rgba(214,69,34,.10)}}
.fuel-sub{margin:8px 0 0;font-size:12.5px;color:var(--gris)}
.fuel.low .fuel-sub{color:var(--rojo);font-weight:600}

/* precio + cantidad */
.price-row{display:flex;align-items:baseline;justify-content:space-between;margin:18px 0 10px}
.price{font-size:22px;font-weight:800;color:var(--verde-osc)}
.price small{font-size:14px;color:var(--gris);font-weight:600}
.price-note{font-size:12px;color:var(--gris)}
.qty{display:flex;align-items:center;justify-content:center;gap:18px;margin:6px 0}
.qty-btn{width:48px;height:48px;border-radius:50%;border:1.5px solid var(--verde);background:#fff;color:var(--verde);font-size:26px;font-weight:700;cursor:pointer;line-height:1;display:grid;place-items:center}
.qty-btn:active{background:var(--verde);color:#fff}
.qty-btn:disabled{opacity:.35;cursor:not-allowed}
.qty-val{min-width:96px;text-align:center;font-size:26px;font-weight:800}
.qty-val small{font-size:15px;color:var(--gris)}
.total-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-top:1px dashed var(--linea);border-bottom:1px dashed var(--linea);margin:8px 0 16px}
.total-row strong{font-size:22px;color:var(--verde-osc)}

/* llave */
.invite{display:block;margin:2px 0 14px}
.invite-lbl{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.invite-lbl small{color:var(--gris);font-weight:400}
.invite input{width:100%;padding:13px 14px;border:1.5px solid var(--linea);border-radius:12px;font-size:16px;outline:none}
.invite input:focus{border-color:var(--verde)}

/* botón pagar */
.pay{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:16px;border:none;border-radius:14px;
  background:linear-gradient(180deg,#12915a,var(--verde-osc));color:#fff;font-size:17px;font-weight:800;cursor:pointer;box-shadow:0 6px 16px rgba(14,124,74,.28)}
.pay:active{transform:translateY(1px)}
.pay:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}

/* entrega */
.delivery{margin:18px 0 0;padding:14px;border-radius:14px;background:var(--crema);border:1px solid var(--dorado-cl)}
.delivery-h{font-weight:800;margin-bottom:4px}
.delivery p{margin:0;font-size:13.5px;line-height:1.5}
.ref{font-size:11.5px;color:var(--gris);text-align:center;margin:14px 0 0}

/* modal Bre-B (contenedor #modal; vacío = oculto) */
#modal:empty{display:none}
#modal{position:fixed;inset:0;z-index:20;display:grid;place-items:end center}
.modal-backdrop{position:absolute;inset:0;background:rgba(15,25,20,.5)}
.modal-panel{position:relative;background:#fff;width:100%;max-width:520px;border-radius:20px 20px 0 0;padding:22px 20px 28px;box-shadow:0 -8px 30px rgba(0,0,0,.2);animation:up .28s ease}
@keyframes up{from{transform:translateY(30px);opacity:.6}to{transform:none;opacity:1}}
.modal-x{position:absolute;top:12px;right:14px;background:none;border:none;font-size:26px;color:var(--gris);cursor:pointer;line-height:1}
.qr-wrap{text-align:center}
.qr-wrap h2{margin:.2em 0}
.qr-box{width:220px;height:220px;margin:14px auto;border-radius:16px;border:2px solid var(--linea);display:grid;place-items:center;background:#fff}
.qr-box img{width:100%;height:100%;object-fit:contain;border-radius:14px}
.qr-amount{font-size:24px;font-weight:800;color:var(--verde-osc)}
.qr-hint{color:var(--gris);font-size:13px}
.qr-status{margin-top:12px;font-weight:700}
.spin{display:inline-block;width:16px;height:16px;border:2px solid var(--linea);border-top-color:var(--verde);border-radius:50%;animation:sp .8s linear infinite;vertical-align:-3px;margin-right:6px}
@keyframes sp{to{transform:rotate(360deg)}}
.ok-check{color:var(--verde);font-size:44px}

/* htmx loading indicator en el botón de pago */
.htmx-indicator{display:none}
.htmx-request .htmx-indicator{display:inline-block}
.htmx-request.pay .pay-txt{opacity:.7}
.pay .spin{width:16px;height:16px;border-color:rgba(255,255,255,.5);border-top-color:#fff;margin:0 0 0 4px}

/* error dentro del modal */
.modal-msg{text-align:center;padding:8px 4px}
.modal-msg h2{margin:.2em 0}
.modal-msg p{color:var(--gris);font-size:14px}

/* confirmación viral: notice + compartir + llave + whatsapp */
.notice{margin:14px 0;padding:18px 16px;border-radius:16px;background:linear-gradient(135deg,#12915a,#0a5d38);color:#f4efe4;text-align:center;box-shadow:var(--sombra)}
.notice-badge{font-size:11px;letter-spacing:1.5px;font-weight:800;color:#e6c15f}
.notice-big{font-size:22px;font-weight:900;margin:6px 0 2px;line-height:1.1}
.notice-sub{font-size:12.5px;opacity:.92}
.notice-tag{margin-top:10px;display:inline-block;font-size:12px;background:rgba(255,255,255,.16);padding:5px 12px;border-radius:999px}
.invite-reveal{margin:12px 0;padding:12px 14px;border:1.5px dashed var(--dorado);border-radius:12px;background:#fffdf5;text-align:center;font-size:14px}
.invite-reveal strong{display:inline-block;font-size:20px;color:var(--verde-osc);letter-spacing:1.5px;margin:2px 0}
.invite-reveal span{display:block;font-size:12px;color:var(--gris);margin-top:2px}
.share-btn{width:100%;margin-top:12px;padding:14px;border:none;border-radius:12px;background:#111;color:#fff;font-size:15px;font-weight:800;cursor:pointer}
.share-btn:active{transform:translateY(1px)}
.wa-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;margin-top:10px;padding:14px;border-radius:12px;background:#25d366;color:#fff;font-size:15px;font-weight:800;text-decoration:none}

/* ---- responsive: dos columnas en pantallas anchas ---- */
@media (min-width:820px){
  .app{max-width:980px}
  .product{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:stretch}
  .photo{aspect-ratio:auto;height:100%;min-height:560px}
  .info{padding:22px 30px 36px;align-self:center;width:100%}
  #modal{place-items:center}
  .modal-panel{border-radius:20px;max-width:460px}
}