:root{--bg:#f7f8fb;--card:#fff;--ink:#172033;--muted:#61708a;--line:#dce4ef;--blue:#2563eb;--blue2:#1e40af;--green:#0f766e;--warn:#b45309;--red:#b91c1c;--soft:#eef5ff;--shadow:0 18px 48px rgba(15,23,42,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.62}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1180px;margin:auto;padding:0 20px}.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 0}.brand{font-size:1.25rem;font-weight:900;color:var(--ink);letter-spacing:-.03em}.brand span{color:var(--blue)}.navlinks{display:flex;gap:13px;flex-wrap:wrap}.navlinks a{font-size:.93rem;color:#475569}.hero{background:linear-gradient(135deg,#fff 0%,#eef5ff 100%);border-bottom:1px solid var(--line);padding:54px 0 38px}.hero h1{font-size:clamp(2.15rem,5vw,4.25rem);line-height:1.04;letter-spacing:-.06em;margin:0 0 16px}.hero p{max-width:820px;font-size:1.2rem;color:#40516b;margin:0 0 22px}.pillrow{display:flex;gap:10px;flex-wrap:wrap}.pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:#42526b;font-weight:700;font-size:.88rem}.section{padding:34px 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid2{display:grid;grid-template-columns:2fr 1fr;gap:22px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{background:#fff;border:1px solid var(--line);border-radius:21px;padding:22px;box-shadow:var(--shadow)}.card h2,.card h3{margin-top:0;line-height:1.2}.meta{color:var(--muted);font-size:.93rem}.btn,button.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--blue);background:var(--blue);color:#fff!important;padding:10px 14px;font:inherit;font-weight:800;cursor:pointer;text-decoration:none}.btn.secondary{background:#fff;color:var(--blue)!important}.crumbs{font-size:.9rem;color:var(--muted);padding:18px 0}.shelf-icon{font-size:1.6rem}.calc-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.calc-link{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.calc-link b{display:block;color:var(--ink);line-height:1.25}.calc-link .tag{display:inline-block;margin-top:8px;background:#eef5ff;color:#1d4ed8;border-radius:999px;padding:3px 8px;font-size:.76rem;font-weight:800}.searchbox{width:100%;border:1px solid var(--line);border-radius:15px;padding:13px 15px;font:inherit}.filterbar{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.filterbar button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 11px;cursor:pointer}.filterbar button.active{background:var(--blue);color:#fff}.tool{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden;margin-top:16px}.tool-head{padding:22px 24px;background:linear-gradient(135deg,#10233f,#2854a5);color:#fff}.tool-head h2{margin:0 0 6px}.tool-body{display:grid;grid-template-columns:1.05fr .95fr}.inputs{padding:24px;border-right:1px solid var(--line)}.results{padding:24px;background:#fbfdff}.field{margin:0 0 15px}.field label{display:block;font-weight:800;margin-bottom:6px}.field small{display:block;color:var(--muted);margin-top:4px}.field input,.field select,.field textarea{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:10px 12px;font:inherit;background:#fff}.field textarea{min-height:88px}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;min-height:92px}.result-card span{display:block;color:var(--muted);font-size:.86rem}.result-card strong{display:block;color:#0f2851;font-size:1.45rem;line-height:1.12}.summary{margin-top:14px;background:#ecfdf5;border-left:4px solid var(--green);padding:12px 14px;border-radius:12px;color:#134e4a}.warning{margin-top:12px;background:#fff7ed;border-left:4px solid var(--warn);padding:12px 14px;border-radius:12px;color:#7c2d12}.danger{margin-top:12px;background:#fef2f2;border-left:4px solid var(--red);padding:12px 14px;border-radius:12px;color:#7f1d1d}.content{background:#fff;border:1px solid var(--line);border-radius:21px;padding:26px}.content h2{line-height:1.2;margin-top:1.45em}.content h2:first-child{margin-top:0}.toc,.disclaimer{background:#f8fafc;border:1px solid var(--line);border-radius:16px;padding:16px}.tablewrap{overflow:auto}table{border-collapse:collapse;width:100%;background:#fff}th,td{border:1px solid var(--line);padding:9px;text-align:left}th{background:#f1f5f9}.printbar{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.footer{margin-top:44px;background:#111827;color:#d1d5db;padding:34px 0}.footer a{color:#bfdbfe}.schema-note{font-size:.82rem;color:#64748b}@media(max-width:900px){.grid,.grid2,.grid4,.tool-body{grid-template-columns:1fr}.inputs{border-right:0;border-bottom:1px solid var(--line)}.calc-list,.result-grid,.row{grid-template-columns:1fr}.nav{align-items:flex-start;flex-direction:column}.hero{padding-top:32px}}@media print{.top,.footer,.printbar,.navlinks,.filterbar{display:none}.card,.tool,.content{box-shadow:none}.wrap{max-width:none}.section{padding:12px 0}}