:root{--luc-ink:#17202d;--luc-muted:#5e6878;--luc-bg:#f4f2ed;--luc-paper:#fffdfa;--luc-line:#d8d0c3;--luc-blue:#173f67;--luc-blue2:#0c2c4c;--luc-copper:#b76538;--luc-soft:#eaf1f6;--luc-warn:#fff2d6;--luc-error:#a52b24;--luc-shadow:0 16px 42px rgba(35,41,50,.1)}*{box-sizing:border-box}html,body{max-width:100%;overflow-x:hidden}.luc-page{background:var(--luc-bg);color:var(--luc-ink);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.luc-shell{width:min(1140px,calc(100% - 32px));margin-inline:auto}.luc-hero{background:linear-gradient(120deg,#0c2c4c 0 67%,#b76538 67%);color:#fff;padding:clamp(2.5rem,7vw,5.5rem) 0 3.5rem}.luc-hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(240px,.65fr);gap:2rem;align-items:end}.luc-kicker{margin:0 0 .8rem;color:#f2b591;font-size:.76rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.luc-hero h1{max-width:800px;margin:0;font-family:Georgia,serif;font-size:clamp(2.2rem,5.8vw,4.8rem);font-weight:700;letter-spacing:-.045em;line-height:.98}.luc-lead{max-width:720px;margin:1.15rem 0 0;color:#d7e4ee;font-size:clamp(1rem,2vw,1.14rem);line-height:1.7}.luc-stamp{border:1px solid rgba(255,255,255,.35);background:rgba(12,44,76,.68);padding:1.25rem}.luc-stamp strong{display:block;color:#f3bd9d;font-size:1.25rem}.luc-stamp span{display:block;margin-top:.45rem;color:#eef5f9;line-height:1.55}.luc-rulebar{border-bottom:1px solid #cabda9;background:#e5ded2}.luc-rulebar-inner{display:flex;flex-wrap:wrap;gap:.65rem 1.4rem;justify-content:space-between;padding:.85rem 0;color:#383f48;font-size:.85rem;font-weight:850}.luc-main{padding:2rem 0 4rem}.luc-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(310px,.72fr);gap:1.25rem;align-items:start}.luc-card{min-width:0;border:1px solid var(--luc-line);background:var(--luc-paper);box-shadow:var(--luc-shadow);padding:clamp(1rem,2.6vw,1.65rem)}.luc-card h2,.luc-card h3{margin-top:0;letter-spacing:-.02em}.luc-intro{color:var(--luc-muted);line-height:1.65}.luc-mode{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem;margin:1rem 0}.luc-mode label{display:flex;gap:.55rem;align-items:flex-start;border:1px solid var(--luc-line);background:var(--luc-soft);padding:.8rem;font-weight:800;line-height:1.4}.luc-mode input{margin-top:.2rem}.luc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.luc-field{display:grid;gap:.4rem;min-width:0}.luc-field label{font-size:.9rem;font-weight:850}.luc-field input,.luc-field select{width:100%;min-height:48px;border:1px solid #aaa294;background:#fff;color:#17202d;padding:.72rem .8rem;font:inherit}.luc-field small{color:var(--luc-muted);font-size:.78rem;line-height:1.45}.luc-components{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;border-top:1px solid var(--luc-line);margin-top:1.1rem;padding-top:1.1rem}.luc-components[hidden]{display:none}.luc-actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.25rem}.luc-button{min-height:46px;border:1px solid #9a9388;background:#fff;color:#1f3347;padding:.7rem 1rem;font:inherit;font-weight:850;cursor:pointer}.luc-button.primary{border-color:var(--luc-blue);background:var(--luc-blue);color:#fff}.luc-button:hover{transform:translateY(-1px)}.luc-button:disabled{cursor:not-allowed;opacity:.5;transform:none}.luc-field input:focus-visible,.luc-field select:focus-visible,.luc-button:focus-visible,.luc-mode input:focus-visible,.luc-sources a:focus-visible,.luc-faq summary:focus-visible{outline:3px solid #d87c4b;outline-offset:3px}.luc-error{min-height:1.4rem;margin:.8rem 0 0;color:var(--luc-error);font-weight:800}.luc-status{min-height:1.4rem;margin:.4rem 0 0;color:var(--luc-muted);font-size:.86rem}.luc-results{position:sticky;top:1rem}.luc-results[hidden]{display:none}.luc-eyebrow{margin:0;color:var(--luc-muted);font-size:.76rem;font-weight:900;letter-spacing:.09em;text-transform:uppercase}.luc-total{display:block;margin:.35rem 0;color:var(--luc-blue);font-family:Georgia,serif;font-size:clamp(2.1rem,5vw,3.2rem);letter-spacing:-.045em}.luc-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem;margin:1rem 0}.luc-metric{border-left:4px solid var(--luc-copper);background:var(--luc-soft);padding:.75rem;min-width:0}.luc-metric span{display:block;color:var(--luc-muted);font-size:.71rem;font-weight:850;text-transform:uppercase}.luc-metric strong{display:block;margin-top:.25rem;overflow-wrap:anywhere}.luc-warning{border:1px solid #d9b973;background:var(--luc-warn);color:#624a18;padding:.8rem;line-height:1.55}.luc-method{margin-top:1.25rem}.luc-method-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.luc-method article{border-top:4px solid var(--luc-blue);background:var(--luc-paper);padding:1.15rem}.luc-method p,.luc-method li{color:var(--luc-muted);line-height:1.65}.luc-sources{padding-left:1.15rem}.luc-sources a{color:var(--luc-blue);font-weight:850}.luc-formula{overflow-wrap:anywhere;border-left:4px solid var(--luc-copper);background:var(--luc-soft);padding:.85rem;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.luc-faq{margin-top:1.25rem}.luc-faq details{border-top:1px solid var(--luc-line);padding:.9rem 0}.luc-faq summary{cursor:pointer;font-weight:850}.luc-faq p{color:var(--luc-muted);line-height:1.65}@media(max-width:820px){.luc-hero{background:#0c2c4c}.luc-hero-grid,.luc-layout{grid-template-columns:1fr}.luc-results{position:static}.luc-method-grid{grid-template-columns:1fr}}@media(max-width:540px){.luc-shell{width:min(100% - 20px,1140px)}.luc-grid,.luc-components,.luc-metrics,.luc-mode{grid-template-columns:1fr}.luc-actions .luc-button{width:100%}.luc-card{padding:1rem}.luc-rulebar-inner{display:block}.luc-rulebar-inner span{display:block;margin:.25rem 0}}@media(prefers-color-scheme:dark){:root{--luc-ink:#edf2f5;--luc-muted:#b3bdc7;--luc-bg:#111619;--luc-paper:#182126;--luc-line:#44505a;--luc-soft:#202e38;--luc-warn:#392f18;--luc-error:#ff9c96;--luc-shadow:none}.luc-field input,.luc-field select,.luc-button{background:#10191f;color:#eff5f8;border-color:#66717a}.luc-rulebar{background:#283038;border-color:#48525b}.luc-rulebar-inner{color:#e1e7eb}}[data-theme="dark"]{--luc-ink:#edf2f5;--luc-muted:#b3bdc7;--luc-bg:#111619;--luc-paper:#182126;--luc-line:#44505a;--luc-soft:#202e38;--luc-warn:#392f18;--luc-error:#ff9c96;--luc-shadow:none}[data-theme="dark"] .luc-field input,[data-theme="dark"] .luc-field select,[data-theme="dark"] .luc-button{background:#10191f;color:#eff5f8;border-color:#66717a}[data-theme="dark"] .luc-rulebar{background:#283038;border-color:#48525b}[data-theme="dark"] .luc-rulebar-inner{color:#e1e7eb}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.luc-button:hover{transform:none}}