.co-calculator{--co-border:#dfe5ec;--co-text:#1f2937;--co-muted:#64748b;--co-primary:#1d4ed8;--co-primary-dark:#1e40af;--co-bg:#fff;--co-soft:#f6f8fb;max-width:1180px;margin:24px auto;padding:22px;background:var(--co-bg);border:1px solid var(--co-border);border-radius:14px;box-shadow:0 6px 24px rgba(15,23,42,.06);color:var(--co-text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;box-sizing:border-box}
.co-calculator *{box-sizing:border-box}.co-header{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:20px}.co-heading{font-size:28px;line-height:1.2;margin:0 0 5px;font-weight:750}.co-subheading{margin:0;color:var(--co-muted);font-size:14px}
.co-settings{display:grid;grid-template-columns:minmax(260px,1fr) minmax(300px,1fr);gap:16px;align-items:end;background:var(--co-soft);padding:16px;border-radius:12px;margin-bottom:18px}.co-field label{display:block;font-weight:650;font-size:13px;margin-bottom:7px}.co-field input,.co-table input{font:inherit}.co-print-title{width:100%;height:42px;border:1px solid #cbd5e1;border-radius:8px;padding:0 12px;background:#fff}
.co-radio-group{display:flex;flex-direction:column;gap:9px;font-size:14px}.co-radio-group label{display:flex;gap:9px;align-items:center;cursor:pointer}.co-radio-group input{accent-color:var(--co-primary)}
.co-table-wrap{overflow-x:auto;border:1px solid var(--co-border);border-radius:10px}.co-table{width:100%;border-collapse:collapse;min-width:760px}.co-table th{background:#f8fafc;color:#475569;font-size:12px;text-transform:uppercase;letter-spacing:.04em;text-align:left;padding:11px;border-bottom:1px solid var(--co-border);white-space:nowrap}.co-table td{padding:8px;border-bottom:1px solid #edf1f5;vertical-align:middle}.co-table tr:last-child td{border-bottom:0}.co-table td input{width:100%;height:38px;border:1px solid #d6dde7;border-radius:7px;padding:0 9px;background:#fff;color:#111827}.co-table td:first-child input{width:90px}.co-table td:last-child{font-weight:700;white-space:nowrap}.co-table tr.co-active{background:#fbfdff}
.co-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}.co-stat{border:1px solid var(--co-border);border-radius:10px;padding:13px;background:#fff}.co-stat span{display:block;color:var(--co-muted);font-size:12px;margin-bottom:5px}.co-stat strong{font-size:21px}
.co-actions{display:flex;flex-wrap:wrap;gap:9px}.co-btn{border:0;border-radius:8px;padding:10px 16px;min-height:42px;font-weight:700;cursor:pointer;transition:.15s ease;line-height:1.2}.co-btn:hover{transform:translateY(-1px)}.co-btn-primary{background:var(--co-primary);color:#fff}.co-btn-primary:hover{background:var(--co-primary-dark)}.co-btn-secondary{background:#111827;color:#fff}.co-btn-light{background:#eef2f7;color:#334155}.co-message{margin-top:12px;min-height:22px;color:#b42318;font-size:13px}.co-help{color:var(--co-muted);font-size:12px;line-height:1.55;margin:14px 0 0}.co-print-area{display:none}.screen-reader-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:760px){.co-calculator{padding:14px;margin:12px 0;border-radius:10px}.co-header{align-items:flex-start;flex-direction:column}.co-heading{font-size:23px}.co-settings{grid-template-columns:1fr}.co-summary{grid-template-columns:repeat(2,1fr)}.co-actions .co-btn{flex:1 1 45%}.co-table{min-width:700px}}
@media print{body *{visibility:hidden!important}.co-print-area,.co-print-area *{visibility:visible!important}.co-print-area{display:block!important;position:absolute;left:0;top:0;width:100%;padding:20px;color:#111}.co-print-area table{width:100%;border-collapse:collapse}.co-print-area th,.co-print-area td{border:1px solid #999;padding:7px;text-align:left}.co-print-area h1{font-size:20px}.co-print-area .print-total{font-weight:700;margin-top:12px}}