:root{--bg:#f3f6f9;--card:#fff;--text:#1c2b36;--muted:#5b6b78;--line:#d5dee6;--accent:#0f6e8c;--accent-soft:#e4f2f7;--danger:#b3261e;--danger-soft:#fdecea;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif}*{box-sizing:border-box}body{-webkit-text-size-adjust:100%;margin:0;font-size:17px;line-height:1.6}.page{max-width:1000px;margin:0 auto;padding:16px 16px 48px}.page-head h1{margin:8px 0 0;font-size:1.5rem}h2{margin:0 0 12px;font-size:1.15rem}h3{margin:0;font-size:1rem}.muted{color:var(--muted);margin:4px 0 12px;font-size:.95rem}.tool{flex-direction:column;gap:16px;display:flex}.top{grid-template-columns:1fr;gap:16px;display:grid}@media (width>=860px){.top{grid-template-columns:1.1fr 1fr;align-items:start}.result{position:sticky;top:16px}}.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}label{color:var(--muted);margin:10px 0 4px;font-size:.9rem;display:block}select,input{width:100%;min-height:48px;font:inherit;color:inherit;background:#fff;border:1px solid #9fb0bd;border-radius:8px;padding:8px 12px;font-size:16px}select:focus-visible,input:focus-visible,button:focus-visible{outline-offset:1px;outline:3px solid #7cc4dc}input[aria-invalid=true]{border-color:var(--danger);background:var(--danger-soft)}.row2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.entry{border-bottom:1px solid var(--line);padding:12px 0 14px}.entry:first-of-type{padding-top:0}.entry-head{justify-content:space-between;align-items:center;display:flex}.presets{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.chip{min-width:64px;min-height:44px;font:inherit;color:var(--text);cursor:pointer;background:#fff;border:1px solid #9fb0bd;border-radius:22px;padding:0 14px;font-size:.95rem}.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}.actions{flex-wrap:wrap;gap:12px;margin-top:14px;display:flex}.btn{min-height:48px;font:inherit;cursor:pointer;border:1px solid var(--accent);background:var(--accent-soft);color:var(--accent);border-radius:8px;padding:0 18px;font-weight:600}.btn-ghost{color:var(--text);background:#fff;border-color:#9fb0bd}.btn-text{min-height:44px;color:var(--danger);font:inherit;cursor:pointer;background:0 0;border:0;padding:0 8px}.result{background:var(--accent-soft);border-color:#a9d3e2}.big{margin:4px 0;font-size:1.25rem;font-weight:700}.big .num{color:var(--accent);padding:0 4px;font-size:3rem;line-height:1.1}.grams{margin:4px 0 8px;font-size:1.15rem}.placeholder{color:#8a9aa6}.error{color:var(--danger);margin:8px 0 0;font-size:.95rem;font-weight:600}.note{color:var(--muted);margin:8px 0 0;font-size:.9rem}.breakdown{border-top:1px solid #a9d3e2;margin:12px 0 0;padding:0;font-size:.9rem;list-style:none}.breakdown li{border-bottom:1px solid #cfe5ee;justify-content:space-between;gap:8px;padding:6px 0;display:flex}.table-wrap{overflow-x:auto}table{border-collapse:collapse;white-space:nowrap;width:100%;font-size:.95rem}th,td{text-align:right;border-bottom:1px solid var(--line);padding:9px 10px}thead th{background:#eaf0f5;font-size:.85rem}th:first-child,td:first-child{text-align:left}tbody th{font-weight:600}td.strong{background:var(--accent-soft);font-weight:700}.ref-row{color:var(--muted)}.tag{border:1px solid var(--line);border-radius:4px;margin-left:6px;padding:1px 6px;font-size:.7rem;font-weight:400}.formula{margin:0;padding-left:1.2em;font-size:.92rem}.formula li{margin-bottom:6px}.disclaimer{color:var(--muted);padding:0 4px;font-size:.85rem}.disclaimer p{margin:6px 0}