:root{--bg:#f5f6fa;--surface:#fff;--surface-2:#f8f9fc;--border:#e3e6ee;--border-strong:#cfd4e0;--text:#0f172a;--muted:#5b6478;--accent:#4f46e5;--accent-hover:#4338ca;--accent-soft:#eef2ff;--positive:#047857;--positive-soft:#ecfdf5;--negative:#c81e1e;--negative-soft:#fef2f2;--warning:#92400e;--warning-soft:#fffbeb;--warning-border:#fcd34d;--sidebar-bg:#0f172a;--sidebar-text:#cbd5e1;--radius:12px;--radius-sm:8px;--shadow:0 1px 2px #0f172a0a, 0 1px 3px #0f172a0f;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,-apple-system,Segoe 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0 0;font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:.82rem}.skip-link{z-index:100;border-radius:var(--radius-sm);background:var(--accent);color:#fff;padding:10px 14px;font-weight:600;text-decoration:none;position:absolute;top:-60px;left:16px}.skip-link:focus{top:16px}.main:focus,h1[tabindex="-1"]:focus{outline:none}.app-footer{border-top:1px solid var(--border);color:var(--muted);margin-top:40px;padding-top:16px;font-size:.8rem}.mobile-summary{display:none}.toast-region{z-index:50;pointer-events:none;position:fixed;bottom:20px;right:20px}.toast{border-radius:var(--radius-sm);color:#fff;max-width:360px;padding:12px 16px;font-size:.9rem;font-weight:500;box-shadow:0 8px 24px #0f172a33}.toast--success{background:#065f46}.toast--error{background:#991b1b}@media (width<=1100px){.calc-layout{grid-template-columns:minmax(0,1fr)}.results{position:static}.mobile-summary{z-index:30;border:1px solid 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