*{margin:0;padding:0;box-sizing:border-box;font-family:'Poppins',Arial,sans-serif;}
:root{--bg:#020617;--panel:#0f172a;--card:#111827;--card2:#1e293b;--blue:#06b6d4;--blue2:#0284c7;--green:#22c55e;--text:#fff;--muted:#94a3b8;--danger:#ef4444;--warn:#f59e0b;}
body{background:var(--bg);color:var(--text);min-height:100vh;}
a{color:inherit}.page-center{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:18px;}.container{width:95%;max-width:1500px;min-height:90vh;background:var(--panel);border-radius:30px;overflow:hidden;box-shadow:0 0 50px rgba(0,0,0,.55);position:relative}.split{display:flex;min-height:90vh}.left{width:45%;background:linear-gradient(180deg,#0ea5e9,#0369a1);padding:50px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.left img.logo{max-width:280px;width:80%;margin-bottom:30px}.left h1{font-size:42px;margin-bottom:15px}.left p{font-size:20px;opacity:.92;max-width:520px}.right{width:55%;padding:60px;display:flex;flex-direction:column;justify-content:center}.top-logo{max-width:180px;margin-bottom:30px}.scan-box{background:var(--card2);border:3px dashed #38bdf8;border-radius:25px;min-height:280px;display:flex;justify-content:center;align-items:center;flex-direction:column;margin-bottom:30px;text-align:center;padding:25px}.scan-box h2{font-size:32px;margin-bottom:10px}.scan-box p{color:var(--muted);font-size:18px}.input{width:100%;height:70px;border:none;border-radius:18px;padding:20px;font-size:24px;background:#0f172a;color:#fff;outline:none;margin-bottom:18px;border:1px solid rgba(255,255,255,.08)}.btn{height:66px;border:none;border-radius:18px;background:linear-gradient(90deg,var(--blue),var(--blue2));color:#fff;font-size:22px;font-weight:700;cursor:pointer;transition:.2s;padding:0 22px}.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}.btn.secondary{background:#334155}.btn.danger{background:linear-gradient(90deg,#ef4444,#b91c1c)}.footer{position:absolute;bottom:18px;right:34px;color:#64748b;font-size:14px}.message{min-height:28px;color:#fca5a5;font-size:15px;margin-bottom:10px}.header{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:26px}.header img{max-width:180px;max-height:90px;object-fit:contain}.header h1{font-size:38px;text-align:center}.toolbar{display:grid;grid-template-columns:1.4fr 1fr 1fr auto;gap:15px;align-items:center;margin-bottom:22px}.info-card{background:#111827;border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:18px}.info-card small{display:block;color:var(--muted);font-size:13px}.info-card strong{display:block;font-size:24px;margin-top:3px}.status{display:inline-flex;align-items:center;gap:8px;font-weight:700}.dot{width:12px;height:12px;border-radius:999px;background:var(--danger);box-shadow:0 0 16px rgba(239,68,68,.8)}.dot.ok{background:var(--green);box-shadow:0 0 16px rgba(34,197,94,.8)}.dot.warn{background:var(--warn);box-shadow:0 0 16px rgba(245,158,11,.8)}.peso-atual{text-align:right}.peso-atual strong{font-size:38px;color:#38bdf8}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.card{background:var(--card);border-radius:26px;padding:28px;transition:.2s;cursor:pointer;border:2px solid transparent;display:flex;flex-direction:column;min-height:345px}.card:hover,.card.active{transform:translateY(-5px);border-color:var(--blue)}.card h2{font-size:29px;margin-bottom:12px}.card p{color:var(--muted);font-size:16px;margin-bottom:20px;min-height:46px}.price{font-size:38px;font-weight:800;color:var(--green);margin-bottom:22px}.weight-box{background:#020617;border-radius:18px;padding:22px;text-align:center;margin-bottom:20px}.weight{font-size:46px;font-weight:900;color:#38bdf8;line-height:1}.total{font-size:24px;font-weight:800;text-align:center;margin-bottom:18px;color:#f8fafc}.card .btn{width:100%;margin-top:auto}.empty{grid-column:1/-1;text-align:center;color:var(--muted);background:#111827;border-radius:22px;padding:40px}.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:#111827;border:1px solid rgba(255,255,255,.12);padding:16px 22px;border-radius:14px;box-shadow:0 20px 50px rgba(0,0,0,.4);display:none;z-index:20}.toast.show{display:block}.toast.success{border-color:rgba(34,197,94,.7)}.toast.error{border-color:rgba(239,68,68,.7)}
@media(max-width:980px){.split{flex-direction:column}.left,.right{width:100%;padding:34px}.left{min-height:320px}.container{min-height:auto}.toolbar{grid-template-columns:1fr 1fr}.cards{grid-template-columns:1fr 1fr}.header h1{font-size:28px}.peso-atual{text-align:left}}
@media(max-width:640px){.page-center{padding:0}.container{width:100%;border-radius:0;min-height:100vh}.left h1{font-size:32px}.right{padding:26px}.scan-box h2{font-size:24px}.input{font-size:18px}.toolbar{grid-template-columns:1fr}.cards{grid-template-columns:1fr}.header{flex-direction:column}.footer{position:static;text-align:center;padding:18px}.peso-atual strong{font-size:34px}}
.label{display:block;color:#cbd5e1;font-size:14px;font-weight:700;margin:8px 0 8px;text-transform:uppercase;letter-spacing:.04em}.input-row{display:grid;grid-template-columns:1fr 150px;gap:12px;align-items:start}.config-actions{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:10px}.scale-preview{margin-top:22px;background:#020617;border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:18px;display:grid;gap:10px;color:#cbd5e1}.link-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border-radius:14px;background:rgba(15,23,42,.35);border:1px solid rgba(255,255,255,.25);text-decoration:none;font-weight:700;margin-top:26px}.message.show{background:#052e16;border:1px solid rgba(34,197,94,.35);color:#bbf7d0;border-radius:12px;padding:10px 12px;margin-bottom:14px}.message.show.error{background:#450a0a;border-color:rgba(239,68,68,.45);color:#fecaca}@media(max-width:640px){.input-row,.config-actions{grid-template-columns:1fr}.input-row .btn{height:56px}}
.nav-btn{text-decoration:none;display:inline-flex;align-items:center;justify-content:center}

.app-version{display:inline-block;margin-left:10px;opacity:.65;font-size:12px;}
@media(max-width:640px){.app-version{display:block;margin:6px 0 0 0;}}

.hint{display:block;font-size:12px;color:#64748b;margin:-8px 0 14px 0;line-height:1.4}