*{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#0b1226;--bg2:#121a33;--bd:rgba(255,255,255,.14);--tx:#f4f6ff;--dim:#a9b4d6;--ac:#f472b6;--gold:#fbbf24}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:radial-gradient(900px 420px at 15% -10%,#27408f55,transparent),#0b1226 url("fundo-matematica.svg") repeat;background-size:auto,auto,600px 600px;color:var(--tx);min-height:100vh;padding:0 16px 96px}
a{color:inherit}
.topo{max-width:1120px;margin:0 auto;padding:16px 0 8px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.wbar{position:sticky;top:0;z-index:60;display:flex;align-items:stretch;height:34px;margin:0 -16px 10px;padding:0 0 0 12px;background:#202020;border-bottom:1px solid #3a3a3a;user-select:none;font-family:"Segoe UI",system-ui,sans-serif}
.wic{align-self:center;font-size:14px;margin-right:9px}
.wtit{flex:1;min-width:0;align-self:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:12px;font-weight:400;color:#fff}
.wbtns{display:flex;align-items:stretch}
.wb{width:46px;display:flex;align-items:center;justify-content:center;background:transparent;border:0;color:#fff;text-decoration:none;cursor:default;line-height:0}
.wb:hover{background:rgba(255,255,255,.1)}
.wx{cursor:pointer}.wx:hover,.wx:focus-visible{background:#c42b1c;color:#fff;outline:0}
@media(max-width:520px){.wb{width:40px}}
html.emb .wbar{display:none!important}
html.emb .topo,html.emb .migalha,html.emb footer{display:none!important}
html.emb body{padding-top:14px;background-color:#0b1226}
.voltar{display:inline-block;background:#fbbf24;color:#111;text-decoration:none;font-weight:700;font-size:1rem;padding:9px 16px;border-radius:6px}
.voltar:hover{background:#f59e0b;color:#111}
.topo-dir{display:flex;align-items:center;gap:10px}
.grupo{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);border:1px solid var(--bd);border-radius:99px;padding:5px 12px;background:rgba(255,255,255,.05)}
.ico{background:rgba(255,255,255,.08);border:1px solid var(--bd);color:var(--tx);width:34px;height:34px;border-radius:10px;cursor:pointer;font-size:1rem}
.migalha{max-width:1120px;margin:0 auto 14px;font-size:.82rem;color:var(--dim);display:flex;gap:8px;flex-wrap:wrap}
.migalha a{text-decoration:none;color:var(--dim)}
.migalha a:hover{color:#fff}
.migalha b{color:var(--tx);font-weight:700}
main{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,400px);gap:28px;align-items:start}
.foto{position:relative;background:rgba(255,255,255,.05);border:1px solid var(--bd);border-radius:20px;padding:10px;cursor:zoom-in}
.foto img{width:100%;height:auto;display:block;border-radius:12px;background:#fff}
.zoom{position:absolute;right:20px;bottom:20px;background:rgba(11,18,38,.82);border:1px solid var(--bd);border-radius:99px;padding:6px 12px;font-size:.76rem;font-weight:700;color:#fff}
.mini{display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:8px;margin-top:10px}
.mini-img{padding:0;border:2px solid transparent;border-radius:10px;background:none;cursor:pointer;overflow:hidden}
.mini-img img{width:100%;height:100%;display:block;border-radius:8px;background:#fff}
.mini-img.on{border-color:var(--ac)}
.info{padding-top:4px}
.cod{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ac);font-weight:900;margin-bottom:6px}
h1{font-size:clamp(1.7rem,3.2vw,2.6rem);line-height:1.12;margin-bottom:10px;letter-spacing:-.01em}
.sub{color:var(--dim);line-height:1.55;margin-bottom:16px}
.preco{font-size:2rem;font-weight:900;margin-bottom:14px}
.preco .de{color:var(--dim);text-decoration:line-through;font-size:1rem;font-weight:600;margin-right:10px}
.acoes{display:flex;flex-direction:column;gap:10px;margin-bottom:12px}
.btn{display:block;text-align:center;text-decoration:none;font-weight:900;border-radius:12px;padding:15px 16px;font-size:1rem;transition:transform .15s,filter .15s}
.btn:active{transform:scale(.98)}
.comprar{background:#ffbc00;color:#3a2500}
.comprar:hover{filter:brightness(1.06)}
.zap{background:rgba(34,197,94,.14);border:1px solid rgba(34,197,94,.5);color:#bbf7d0}
.seguro{font-size:.8rem;color:var(--dim);margin-bottom:18px}
.inclui{list-style:none;display:grid;gap:8px;margin-bottom:20px}
.inclui li{position:relative;padding-left:24px;font-size:.92rem;color:#dbe2f5;line-height:1.4}
.inclui li::before{content:"✓";position:absolute;left:0;color:#34d399;font-weight:900}
.mini-titulo{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin-bottom:6px;font-weight:800}
.desc{color:#cdd6ee;line-height:1.6;font-size:.95rem}
.relacionados{max-width:1120px;margin:40px auto 0}
.relacionados h2{font-size:1.2rem;margin-bottom:14px}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px}
.rel{display:flex;flex-direction:column;gap:6px;text-decoration:none;background:rgba(255,255,255,.05);border:1px solid var(--bd);border-radius:14px;padding:10px;transition:transform .15s,background .15s}
.rel:hover{transform:translateY(-2px);background:rgba(255,255,255,.09)}
.rel img{width:100%;height:auto;border-radius:8px;background:#fff}
.rel-nome{font-size:.88rem;font-weight:800;line-height:1.25}
.rel-preco{font-size:.85rem;color:var(--gold);font-weight:800}
.rel-link{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:inherit}
.rel-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:2px}
.rel-add{background:#16a34a;color:#fff;border:3px solid #000;border-radius:10px;padding:6px 12px;font-weight:900;cursor:pointer;font-size:1rem;line-height:1;box-shadow:0 3px 10px rgba(0,166,80,.35)}
.rel-add:hover{background:#15803d;transform:translateY(-1px)}
.cart{display:inline-flex;align-items:center;gap:8px;background:#16a34a;border:2px solid #fff;border-radius:10px;padding:0 12px;height:36px;text-decoration:none;color:#fff;font-weight:900;font-size:.78rem;letter-spacing:.05em;text-transform:uppercase}
.cart b{background:rgba(0,0,0,.25);border-radius:99px;padding:2px 8px;color:#fff;font-size:.8rem;letter-spacing:0}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:#111a33;border:1px solid var(--bd);color:#fff;padding:11px 18px;border-radius:12px;font-weight:800;opacity:0;pointer-events:none;transition:.25s;z-index:90;box-shadow:0 12px 30px rgba(0,0,0,.45)}
.toast.on{opacity:1;transform:translateX(-50%)}
.combo{max-width:1120px;margin:34px auto 0;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:linear-gradient(120deg,rgba(251,191,36,.14),rgba(244,114,182,.10));border:1px solid rgba(251,191,36,.35);border-radius:18px;padding:18px 20px}
.combo h2{font-size:1.15rem;margin-bottom:6px}
.combo p{font-size:.95rem;color:#e6ebfb;line-height:1.45}
.selo{display:inline-block;background:#ffbc00;color:#3a2500;font-weight:900;border-radius:99px;padding:3px 10px;font-size:.78rem;margin-bottom:8px}
.preco-combo{color:#ffbc00}
.combo-sub{color:var(--dim)!important;font-size:.82rem!important;margin-top:4px}
.combo-acoes{display:flex;flex-direction:column;gap:8px;min-width:250px}
.carrinho{background:#00a650;border:1px solid #009247;color:#fff;font-weight:800;box-shadow:0 3px 10px rgba(0,166,80,.28)}
.carrinho:hover{background:#009247;transform:translateY(-1px)}
.faq{max-width:1120px;margin:40px auto 0}
.faq h2{font-size:1.2rem;margin-bottom:12px}
.faq details{background:rgba(255,255,255,.05);border:1px solid var(--bd);border-radius:12px;padding:12px 14px;margin-bottom:8px}
.faq summary{cursor:pointer;font-weight:800;font-size:.95rem}
.faq p{color:var(--dim);font-size:.9rem;line-height:1.55;margin-top:8px}
.rel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.rel-head h2{margin:0}
.ver-todos{color:var(--dim);font-size:.86rem;font-weight:700;text-decoration:none}
.ver-todos:hover{color:#fff}
footer{max-width:1120px;margin:44px auto 0;color:#7c88ab;font-size:.82rem;text-align:center;line-height:1.7}
footer a{color:var(--dim)}
.barra{display:none}
.lb{position:fixed;inset:0;z-index:99;background:rgba(3,7,18,.94);display:none;align-items:center;justify-content:center;padding:20px}
.lb.on{display:flex}
.lb img{max-width:92vw;max-height:90vh;border-radius:8px;background:#fff}
.lb-x,.lb-prev,.lb-next{position:absolute;background:rgba(255,255,255,.12);border:1px solid var(--bd);color:#fff;width:46px;height:46px;border-radius:50%;font-size:1.3rem;cursor:pointer}
.lb-x{top:18px;right:18px}
.lb-prev{left:14px;top:50%;transform:translateY(-50%)}
.lb-next{right:14px;top:50%;transform:translateY(-50%)}
@media(max-width:860px){
  main{grid-template-columns:1fr}
  body{padding-bottom:110px}
  .barra{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;background:rgba(11,18,38,.96);border-top:1px solid var(--bd);padding:10px 16px;align-items:center;justify-content:space-between;gap:12px;backdrop-filter:blur(10px)}
  .barra div{display:flex;flex-direction:column;line-height:1.2;min-width:0}
  .barra small{font-size:.72rem;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw}
  .barra b{color:var(--gold);font-size:1.05rem}
  .barra a{background:#ffbc00;color:#3a2500;text-decoration:none;font-weight:900;border-radius:10px;padding:12px 18px;white-space:nowrap}
  .foto{border-radius:16px}
}
@media print{.barra,.lb,.acoes,.ico{display:none!important}}