.roi-calculator{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0 auto;max-width:720px}.roi-card{background:#fff;border:1px solid #e5e7eb;border-radius:14px;box-shadow:0 1px 2px rgba(0,0,0,.04);padding:18px}.roi-title{font-size:22px;margin:0 0 12px}.roi-label{display:block;font-weight:600;margin:12px 0 6px}.roi-input{background:#fff;border:1px solid #d1d5db;border-radius:10px;font-size:16px;padding:10px 12px;width:100%}.roi-input:focus{outline:2px solid #93c5fd;outline-offset:1px}.roi-row{display:grid;gap:12px;grid-template-columns:1fr 1fr}.roi-col{min-width:0}.roi-results{border-top:1px dashed #e5e7eb;margin-top:16px;padding-top:16px}.roi-grid{display:grid;gap:16px;grid-template-columns:1fr 1fr}.roi-panel{background:#fafbfc;border:1px solid #eef0f3;border-radius:12px;padding:12px}.roi-panel-title{font-size:16px;margin:0 0 8px}.roi-kpi{align-items:center;display:flex;justify-content:space-between;margin:8px 0}.roi-kpi-label{color:#6b7280}.roi-kpi-value{font-weight:700}.roi-muted{color:#6b7280;font-size:12px;margin-top:6px}.roi-switch{align-items:center;display:flex;gap:8px;margin-top:14px}.roi-switch-label{font-weight:600}.roi-eff{margin-top:8px}.is-hidden{display:none!important}@media (max-width:720px){.roi-grid,.roi-row{grid-template-columns:1fr}}