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var(--border);color:var(--text-dim);text-align:center;border-radius:10px;padding:1rem;font-size:.88rem;font-weight:500;text-decoration:none;transition:all .2s}.related-card:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .related-card{box-shadow:0 1px 4px #0000000f}.calc-page-footer{border-top:1px solid var(--border);background:#050510f2;margin-top:3rem;padding:2.5rem 1.5rem 1.5rem}[data-theme=light] .calc-page-footer{background:#f1f5f9;border-top-color:#0000001a}.calc-page-footer .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;max-width:1200px;margin:0 auto;display:grid}@media (width<=700px){.calc-page-footer .footer-grid{grid-template-columns:1fr}}.calc-page-footer .footer-logo-row{align-items:center;gap:8px;margin-bottom:.5rem;display:flex}.calc-page-footer .footer-logo{width:auto;height:28px}.calc-page-footer .footer-brand-name{color:#fff;font-size:1.1rem;font-weight:700}[data-theme=light] .calc-page-footer .footer-brand-name{color:#0f172a}.calc-page-footer .footer-tagline{color:#88a;margin-top:.3rem;font-size:.82rem}[data-theme=light] .calc-page-footer .footer-tagline{color:#64748b}.calc-page-footer .footer-col-title{text-transform:uppercase;letter-spacing:.08em;color:#88a;margin-bottom:.75rem;font-size:.75rem;display:block}[data-theme=light] .calc-page-footer .footer-col-title{color:#64748b}.calc-page-footer .footer-link{color:#88a;margin-bottom:.4rem;font-size:.82rem;text-decoration:none;transition:color .2s;display:block}.calc-page-footer .footer-link:hover{color:#00f3ff}[data-theme=light] .calc-page-footer .footer-link{color:#475569}[data-theme=light] .calc-page-footer .footer-link:hover{color:#0f172a}.calc-page-footer .footer-bottom{color:#88a;text-align:center;border-top:1px solid #ffffff0f;max-width:1200px;margin:1.5rem auto 0;padding-top:1rem;font-size:.78rem}[data-theme=light] .calc-page-footer .footer-bottom{color:#94a3b8;border-top-color:#00000014}.back-to-top{background:var(--accent);color:#fff;cursor:pointer;opacity:0;z-index:999;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.4rem;transition:opacity .3s,transform .3s;display:flex;position:fixed;bottom:24px;right:24px;transform:translateY(20px)}.back-to-top.visible{opacity:1;transform:translateY(0)}.toast{z-index:9999;white-space:nowrap;pointer-events:none;border-radius:8px;padding:12px 20px;font-size:.88rem;animation:.3s fadeInUp;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.toast-success{color:#fff;background:#10b981eb}.toast-warn{color:#fff;background:#f59e0beb}.toast-error{color:#fff;background:#ef4444eb}@keyframes fadeInUp{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}