:root{--bg:#f4f6f8;--card:#fff;--ink:#1a2430;--muted:#5b6b7a;--accent:#1769d6;--accent-ink:#fff;--gold:#f5c518;--border:#dbe2ea;--good:#137a4b;--warn:#9a5b00}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--accent)}.wrap{max-width:920px;margin:0 auto;padding:24px 16px 64px}.hero h1{margin:0 0 4px;font-size:1.8rem}.hero p{color:var(--muted);margin:0 0 20px}.grid{grid-template-columns:1fr;gap:20px;display:grid}@media (min-width:820px){.grid{grid-template-columns:360px 1fr}}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px}.card h2{margin:0 0 12px;font-size:1.05rem}textarea{resize:vertical;border:1px solid var(--border);border-radius:8px;width:100%;min-height:180px;padding:10px;font:14px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}textarea:focus{outline:3px solid var(--gold);border-color:var(--gold)}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}input[type=text]{border:1px solid var(--border);border-radius:8px;flex:auto;min-width:140px;padding:9px 10px;font-size:14px}button{cursor:pointer;background:var(--accent);color:var(--accent-ink);border:0;border-radius:8px;padding:9px 14px;font-size:14px;font-weight:600}button.secondary{color:var(--ink);border:1px solid var(--border);background:#eef2f7}button.link{color:var(--accent);background:0 0;padding:4px 6px;font-weight:500}button:hover{filter:brightness(1.05)}.headline{color:var(--accent);margin:4px 0 2px;font-size:2.2rem;font-weight:700}.headline small{color:var(--muted);font-size:.85rem;font-weight:500;display:block}.stats{grid-template-columns:repeat(2,1fr);gap:10px;margin-top:12px;display:grid}.stat{border:1px solid var(--border);background:#f7fafc;border-radius:8px;padding:10px}.stat .k{color:var(--muted);font-size:.78rem}.stat .v{font-size:1.1rem;font-weight:600}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:right;border-bottom:1px solid var(--border);padding:6px 8px}th:first-child,td:first-child{text-align:left}tfoot td{border-top:2px solid var(--border);font-weight:700}.muted{color:var(--muted)}.warn{color:var(--warn)}.saved-item{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding:8px 0;display:flex}.saved-item .name{font-weight:600}details{margin-top:14px}summary{cursor:pointer;font-weight:600}.formula{background:#f7fafc;border-radius:8px;margin:6px 0;padding:8px 10px;font-family:ui-monospace,Menlo,monospace;display:inline-block}.topbar{background:var(--card);border-bottom:1px solid var(--border)}.topbar-inner{flex-wrap:wrap;align-items:center;gap:18px;max-width:920px;margin:0 auto;padding:10px 16px;display:flex}.brand{color:var(--ink);font-size:1.1rem;font-weight:800;text-decoration:none}.topnav{flex-wrap:wrap;gap:14px;display:flex}.topnav a{color:var(--accent);font-size:.9rem;text-decoration:none}.topnav a:hover{text-decoration:underline}.subhead{margin:18px 0 6px;font-size:.95rem}.cardlist{gap:12px;margin:0;padding:0;list-style:none;display:grid}.cardlist a{font-weight:600}.cardlist .desc{color:var(--muted);font-size:.9rem}@media print{.topbar,.no-print,textarea,.topnav{display:none!important}body{background:#fff}.wrap{max-width:100%;padding:0}.grid{display:block}.card{box-shadow:none;break-inside:avoid;border:none;padding:6px 0}a{color:inherit;text-decoration:none}}