.cw-calculator{max-width:760px;margin:24px auto;padding:24px;border:1px solid #e5e7eb;border-radius:16px;background:#fff;box-sizing:border-box}
.cw-calculator-head h2{margin:0 0 6px;font-size:1.45rem}.cw-calculator-head p{margin:0 0 20px;color:#6b7280}
.cw-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.cw-field{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.94rem}
.cw-field input{width:100%;box-sizing:border-box;padding:11px 12px;border:1px solid #d1d5db;border-radius:9px;font-size:16px}
.cw-actions{display:flex;gap:10px;margin-top:18px}.cw-actions button{padding:11px 18px;border:0;border-radius:9px;cursor:pointer;font-weight:700}
.cw-actions .cw-calculate{background:#111827;color:#fff}.cw-actions .cw-reset{background:#eef2f7;color:#111827}
.cw-result{margin-top:18px;padding:16px;border-radius:12px;background:#f8fafc}.cw-result-label{font-size:.85rem;color:#64748b}
.cw-result-value{font-size:1.7rem;font-weight:800;margin-top:4px}.cw-result-note{margin-top:6px;color:#64748b;font-size:.9rem}
.cw-error{padding:16px;border:1px solid #ef4444;border-radius:10px}
@media(max-width:640px){.cw-calculator{padding:16px}.cw-fields{grid-template-columns:1fr}.cw-actions button{flex:1}}