:root{
  --brand-blue:#4664A0; --brand-yellow:#F1C522;
  --text:#0f172a; --muted:#6b7280; --border:#e5e7eb;
  --surface:#fff; --surface-2:#f8fafc; --radius-lg:16px; --radius-sm:10px;
  --shadow-1:0 6px 20px rgba(17,24,39,.06);
}
.bac-widget{font-family:Roboto,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);max-width:760px;margin:1rem auto;padding:1.25rem;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-1)}
.bac-header{display:flex;gap:12px;margin-bottom:8px}
.bac-dot{width:14px;height:14px;border-radius:999px;background:var(--brand-blue);box-shadow:0 0 0 4px rgba(70,100,160,.15);margin-top:6px}
.bac-title{margin:0;font-size:1.25rem;font-weight:700;letter-spacing:.2px}
.muted{color:var(--muted);font-size:.92rem}
.bac-grid{display:grid;gap:14px;grid-template-columns:1fr 1fr;margin-top:10px}
@media(max-width:640px){.bac-grid{grid-template-columns:1fr}}
.bac-field{display:flex;flex-direction:column;gap:6px}
.bac-field label{font-size:.95rem;color:#111827;font-weight:600}
.bac-field input,.bac-field select{padding:11px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;background:#fff;transition:box-shadow .15s,border-color .15s}
.bac-field input:focus,.bac-field select:focus{outline:2px solid transparent;border-color:var(--brand-blue);box-shadow:0 0 0 3px rgba(70,100,160,.25)}
.bac-help{font-size:.82rem;color:var(--muted)}
.bac-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:12px;border:0;cursor:pointer;background:var(--brand-blue);color:#fff;font-weight:700;letter-spacing:.2px;transition:transform .06s,box-shadow .15s,background .15s;box-shadow:0 6px 16px rgba(70,100,160,.25)}
.bac-btn:hover{background:#385387}.bac-btn:active{transform:translateY(1px)}
.bac-btn:focus-visible{outline:3px solid var(--brand-yellow);outline-offset:2px}
.full{grid-column:1/-1}
.bac-card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px}
.bac-result{font-size:1.35rem;font-weight:800;color:var(--text);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.bac-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;background:var(--brand-yellow);color:#1b1f2a;font-size:.92rem;font-weight:800;box-shadow:inset 0 0 0 2px rgba(0,0,0,.05)}
.bac-chip{display:inline-block;padding:4px 8px;border-radius:999px;background:rgba(70,100,160,.1);color:#223152;font-weight:700;font-size:.8rem}
.hint{display:inline-flex;gap:8px;background:#fff7d1;color:#3a2b00;border:1px solid #ffe58a;padding:8px 10px;border-radius:10px;font-size:.9rem}
.divider{height:1px;background:linear-gradient(90deg, rgba(70,100,160,.2), rgba(241,197,34,.35));margin:12px 0}