:root{
  --primario:#005c93; --secundario:#559a24; --boton:#4f72b1; --texto:#1f2937; --fondo:#ffffff;
  --muted:#6b7280; --borde:#e5e7eb; --suave:#f4f7fb; --radio:18px; --sombra:0 10px 30px rgba(0,40,80,.08);
  --alerta-bg:#fff7ed; --alerta-bd:#fdba74; --alerta-tx:#9a3412;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:transparent}
body{font-family:Arimo,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--texto);line-height:1.45;-webkit-font-smoothing:antialiased}
body.standalone{background:linear-gradient(180deg,#eef3f8,#f7f9fb)}
.app{max-width:860px;margin:0 auto;padding:12px}
body.standalone .app{padding:28px 16px 48px}
.card{background:var(--fondo);border-radius:var(--radio);box-shadow:var(--sombra);padding:24px 22px}
.screen{animation:in .32s cubic-bezier(.2,.8,.2,1)}
@keyframes in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.loader{display:flex;justify-content:center;padding:60px}
.spinner{width:36px;height:36px;border:4px solid var(--borde);border-top-color:var(--primario);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.head img{height:34px;width:auto;border-radius:4px}
.head .brand{font-weight:700;color:var(--primario);font-size:15px;letter-spacing:.3px}
.stepper{list-style:none;margin:0 0 20px;padding:0;display:flex;gap:6px;align-items:center}
.stepper li{display:flex;align-items:center;gap:7px;flex:1;position:relative;color:var(--muted);font-size:12.5px;font-weight:700}
.stepper li:after{content:"";flex:1;height:2px;background:var(--borde);border-radius:2px;margin:0 6px}
.stepper li:last-child:after{display:none}
.stepper .dot{width:24px;height:24px;border-radius:50%;background:var(--borde);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;flex:none;transition:all .3s}
.stepper li.on .dot{background:var(--primario);box-shadow:0 0 0 4px rgba(0,92,147,.15)}
.stepper li.on{color:var(--primario)}
.stepper li.done .dot{background:var(--secundario)}
.stepper li.done:after{background:var(--secundario)}
@media (max-width:480px){.stepper .lab{display:none}.stepper li.on .lab{display:inline}}
h1{font-size:23px;line-height:1.2;margin:0 0 6px;color:var(--primario);letter-spacing:-.2px}
h2{font-size:21px;line-height:1.25;margin:0 0 4px;letter-spacing:-.2px}
.desc{color:var(--muted);margin:0 0 16px;font-size:15px}

/* zona */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media (max-width:560px){.grid{grid-template-columns:repeat(2,1fr)}}
.tile{border:2px solid var(--borde);border-radius:14px;padding:6px 6px 10px;background:#fff;cursor:pointer;text-align:center;transition:all .18s;display:flex;flex-direction:column;align-items:center;gap:8px;font:inherit;color:inherit}
.tile .imgw{width:100%;aspect-ratio:1;border-radius:10px;overflow:hidden;background:var(--suave);display:block}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;display:block}
.tile:hover{border-color:var(--primario);transform:translateY(-3px);box-shadow:0 10px 20px rgba(0,40,80,.10)}
.tile:hover img{transform:scale(1.06)}
.tile span:last-child{font-weight:700;font-size:14px}
.tile.sel{border-color:var(--primario);box-shadow:0 0 0 4px rgba(0,92,147,.14)}

/* opciones */
.list{display:flex;flex-direction:column;gap:9px}
.opt{display:flex;align-items:flex-start;gap:12px;width:100%;text-align:left;border:2px solid var(--borde);border-radius:14px;padding:13px 14px;background:#fff;cursor:pointer;font:inherit;color:inherit;transition:all .16s}
.opt:hover{border-color:var(--primario);transform:translateX(2px)}
.opt.sel{border-color:var(--primario);background:#f1f7fc;box-shadow:0 0 0 3px rgba(0,92,147,.12)}
.opt .mark{flex:0 0 22px;height:22px;border:2px solid #cbd5e1;border-radius:50%;margin-top:2px;position:relative;transition:all .15s}
.opt.multi .mark{border-radius:6px}
.opt.sel .mark{border-color:var(--primario);background:var(--primario);animation:pop .25s}
@keyframes pop{50%{transform:scale(1.25)}}
.opt.sel .mark:after{content:"";position:absolute;left:6px;top:2px;width:6px;height:11px;border:solid #fff;border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}
.opt b{display:block;font-size:15.5px}
.opt small{display:block;color:var(--muted);font-size:13.5px;margin-top:2px}
.opt.alerta.sel{border-color:var(--alerta-bd);background:var(--alerta-bg)}
textarea.otro{width:100%;margin-top:10px;border:2px solid var(--borde);border-radius:12px;padding:10px 12px;font:inherit;min-height:70px;resize:vertical}
.talla{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.talla select{flex:1 1 180px;font:inherit;font-size:17px;padding:12px;border:2px solid var(--borde);border-radius:12px;background:#fff}

/* pantalla "tu caso" con chips */
.sub{margin:6px 0 18px}
.sub h3{font-size:15px;margin:0 0 10px;display:flex;align-items:baseline;gap:8px}
.sub .hint{font-size:12px;color:var(--muted);font-weight:400}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chipbtn{border:2px solid var(--borde);background:#fff;border-radius:24px;padding:10px 16px;font:inherit;font-size:14.5px;font-weight:600;color:var(--texto);cursor:pointer;transition:all .15s}
.chipbtn:hover{border-color:var(--primario)}
.chipbtn.sel{background:var(--primario);border-color:var(--primario);color:#fff;transform:scale(1.03)}
.chipbtn.alerta.sel{background:#c2410c;border-color:#c2410c}

.nav{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:18px}
.btn{appearance:none;border:0;border-radius:12px;padding:14px 22px;font:inherit;font-weight:700;font-size:15.5px;cursor:pointer;transition:all .15s;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn.primary{background:var(--boton);color:#fff;box-shadow:0 6px 16px rgba(79,114,177,.35)}
.btn.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.primary[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}
.btn.ghost{background:transparent;color:var(--muted);padding-left:6px}
.btn.ghost:hover{color:var(--primario)}
.btn.outline{background:#fff;border:2px solid var(--boton);color:var(--boton)}
.btn.green{background:var(--secundario);color:#fff;box-shadow:0 6px 16px rgba(85,154,36,.3)}
.btn.green:hover{filter:brightness(1.07);transform:translateY(-1px)}
.btn.green.needsize{background:#fff;color:var(--secundario);border:2px solid var(--secundario);box-shadow:none}

/* análisis */
.analizando .an{text-align:center;padding:26px 10px 30px}
.ring{width:56px;height:56px;margin:0 auto 14px;border-radius:50%;border:4px solid #e3ecf5;border-top-color:var(--primario);border-right-color:var(--secundario);animation:spin 1s linear infinite}
.an ul{list-style:none;padding:0;margin:14px auto 0;max-width:340px;text-align:left;display:flex;flex-direction:column;gap:10px}
.an li{display:flex;align-items:center;gap:10px;color:#9ca3af;font-size:15px;transition:color .3s}
.an li .ic{width:20px;height:20px;border-radius:50%;border:2px solid #d1d5db;flex:none;position:relative;transition:all .3s}
.an li.run{color:var(--texto)}
.an li.run .ic{border-color:var(--primario);border-top-color:transparent;animation:spin .7s linear infinite}
.an li.ok{color:var(--texto)}
.an li.ok .ic{background:var(--secundario);border-color:var(--secundario)}
.an li.ok .ic:after{content:"";position:absolute;left:6px;top:2px;width:5px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}

/* resultados */
.alertbox{border:1px solid var(--alerta-bd);background:var(--alerta-bg);color:var(--alerta-tx);border-radius:14px;padding:14px 16px;margin-bottom:16px}
.alertbox b{display:block;margin-bottom:4px;font-size:15.5px}
.alertbox p{margin:0;font-size:14px}
.diag{background:linear-gradient(135deg,#eef5fb,#f3f9ee);border-radius:16px;padding:18px 20px;margin-bottom:14px}
.eyebrow{display:inline-block;font-size:11.5px;letter-spacing:1px;text-transform:uppercase;font-weight:700;color:var(--secundario);margin-bottom:6px}
.dtext{margin:0;font-size:17px;line-height:1.45;color:var(--texto);font-weight:600}
.dsub{margin:8px 0 0;font-size:13.5px;color:var(--muted)}
.dsub a{color:var(--boton);font-weight:700;text-decoration:none;margin-left:6px}
.trust{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;font-size:12.5px;color:var(--muted);margin:0 0 16px}
.trust span{white-space:nowrap}

.prod{border:1.5px solid var(--borde);border-radius:16px;background:#fff;overflow:hidden;display:flex;flex-direction:column;transition:all .2s}
.prod:hover{box-shadow:0 12px 28px rgba(0,40,80,.12);transform:translateY(-2px)}
.prod.main{border:2px solid var(--primario);box-shadow:0 12px 30px rgba(0,92,147,.14);margin-bottom:14px}
@media (min-width:640px){.prod.main{flex-direction:row}.prod.main .pimg{width:46%;flex:none}.prod.main .pimg img{aspect-ratio:1;height:100%}}
.pimg{position:relative;display:block;background:var(--suave)}
.pimg img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;transition:transform .4s ease}
.prod:hover .pimg img{transform:scale(1.03)}
.badge{position:absolute;top:10px;left:10px;font-size:11.5px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;padding:6px 11px;border-radius:20px;background:#fff;color:var(--muted);box-shadow:0 2px 8px rgba(0,0,0,.12)}
.badge.top{background:var(--primario);color:#fff}
.badge.good{background:#e7f5df;color:#2f6f12}
.badge.comp{background:#fff4e0;color:#9a5b00}
.match{position:absolute;right:10px;top:10px;background:rgba(255,255,255,.95);border-radius:20px;padding:5px 10px;font-size:12px;color:var(--muted);box-shadow:0 2px 8px rgba(0,0,0,.12)}
.match b{color:var(--primario);font-size:13px}
.off{position:absolute;left:10px;bottom:10px;background:#e11d48;color:#fff;font-weight:700;font-size:12.5px;padding:4px 9px;border-radius:8px}
.pbody{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.prod h3{margin:0;font-size:17px;line-height:1.25}
.prod.main h3{font-size:21px}
.price{font-weight:700;font-size:18px;color:var(--primario);display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.price s{color:var(--muted);font-weight:400;font-size:13.5px}
.price em{font-style:normal;font-size:12px;color:#2f6f12;background:#e7f5df;padding:2px 8px;border-radius:12px;font-weight:700}
.why{font-size:14px;color:#374151;margin:0;line-height:1.4}
.why b{color:var(--texto)}
details.porque{border-top:1px solid var(--borde);padding-top:8px}
details.porque summary{cursor:pointer;font-size:13.5px;font-weight:700;color:var(--boton);list-style:none;display:flex;align-items:center;gap:6px}
details.porque summary::-webkit-details-marker{display:none}
details.porque summary:before{content:"+";display:inline-flex;width:18px;height:18px;border-radius:50%;background:#eef2f7;align-items:center;justify-content:center;font-size:14px;transition:transform .2s}
details.porque[open] summary:before{content:"–"}
details.porque div{font-size:13.5px;color:#4b5563;line-height:1.45;padding-top:6px;animation:in .25s}
details.porque p{margin:0 0 6px}
details.porque .qe{color:var(--muted);font-size:12.5px}
.var{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--borde);padding-top:10px}
.var.shake{animation:shake .4s}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.vlab{font-size:13px;color:var(--muted);font-weight:700}
.vlab a{color:var(--boton);text-decoration:none;font-weight:600}
.vlab a:hover{text-decoration:underline}
.vchips{display:flex;flex-wrap:wrap;gap:7px}
.vchip{border:2px solid var(--borde);background:#fff;border-radius:10px;padding:8px 13px;font:inherit;font-size:13.5px;font-weight:600;cursor:pointer;transition:all .15s;min-width:44px}
.vchip:hover{border-color:var(--primario)}
.vchip.sel{background:var(--primario);border-color:var(--primario);color:#fff}
.vchip[disabled]{opacity:.4;cursor:not-allowed;text-decoration:line-through}
.vsel{font:inherit;padding:10px 12px;border:2px solid var(--borde);border-radius:10px;background:#fff;width:100%;font-size:14.5px}
.calc{background:var(--suave);border-radius:10px;padding:10px 12px;font-size:13px}
.calc label{display:block;color:var(--muted);margin-bottom:6px}
.calc .row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.calc input{width:110px;font:inherit;font-size:15px;padding:8px 10px;border:2px solid var(--borde);border-radius:8px}
.calc .calcOut{font-size:13.5px;color:#2f6f12;font-weight:600}
.medir{font-size:12px;color:var(--muted)}
.vmsg{font-size:12.5px;color:#b45309;font-weight:600;min-height:0}
.btns{display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:4px;flex-wrap:wrap}
.btns .btn{flex:1 1 auto;padding:12px 16px;font-size:14.5px}
.btns .link{font-size:13.5px;color:var(--boton);font-weight:700;text-decoration:none;white-space:nowrap}
.btns .link:hover{text-decoration:underline}
.plist{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:640px){.plist{grid-template-columns:1fr}}
.cupon{background:#eef7e8;border:1px dashed var(--secundario);border-radius:12px;padding:10px 14px;margin:0 0 14px;font-size:14px;color:#2f5f13}
.cupon code{font-weight:700;font-size:15px;background:#fff;padding:2px 8px;border-radius:6px;border:1px solid #cfe3c2}
.medico{font-size:12.5px;color:var(--muted);margin:16px 0 0;padding:10px 12px;background:var(--suave);border-radius:10px;line-height:1.4}
.foot{margin-top:14px;display:flex;justify-content:center}
.disclaimer{font-size:11.5px;color:#9ca3af;text-align:center;margin-top:14px}
.contact{display:grid;gap:10px;margin:12px 0}
.contact input{font:inherit;padding:12px;border:2px solid var(--borde);border-radius:12px;width:100%}
.contact .row{display:flex;gap:10px;flex-wrap:wrap}
.contact .row .btn{flex:1}
.err{color:#b91c1c;font-size:13.5px;margin-top:8px}
.empty{padding:30px 10px;text-align:center;color:var(--muted)}