:root{color-scheme:light;--ink:#1b1d18;--muted:#60665b;--line:#d9ddcf;--paper:#fbfbf7;--card:#fff;--accent:#6d7b54;--accent-dark:#435035;--soft:#eef1e6;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink)}a{color:inherit}.utility-header{min-height:64px;padding:14px clamp(18px,4vw,56px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fff}.utility-header>a{font-family:Georgia,serif;font-weight:700;text-decoration:none;font-size:1.15rem}.unit-switch{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--soft)}.unit-switch button{border:0;background:transparent;border-radius:999px;padding:7px 12px;font-weight:700;color:var(--muted);cursor:pointer}.unit-switch button[aria-pressed=true]{background:#fff;color:var(--ink);box-shadow:0 1px 4px #1b1d181f}main{width:min(1080px,calc(100% - 28px));margin:auto;padding:32px 0 44px}.utility-hero{text-align:center;max-width:760px;margin:0 auto 24px}.eyebrow{margin:0 0 7px;color:var(--accent-dark);font-size:.75rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.utility-hero h1{font-family:Georgia,serif;font-size:clamp(2rem,5vw,3.6rem);line-height:1.05;margin:0 0 13px}.utility-hero p:last-child{color:var(--muted);font-size:1.05rem;line-height:1.6}.tool-tabs{display:grid;grid-template-columns:repeat(5,minmax(130px,1fr));gap:8px;margin:0 0 14px;overflow:auto}.tool-tabs button{min-width:132px;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px 10px;color:var(--muted);font-weight:750;cursor:pointer}.tool-tabs button[aria-pressed=true]{border-color:var(--accent);background:var(--soft);color:var(--accent-dark)}.calculator-shell{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:14px}.calculator-shell>form,.result-panel{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:clamp(18px,3vw,30px);box-shadow:0 10px 28px #3035280a}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:6px}.field.wide{grid-column:1/-1}.field label{font-size:.83rem;font-weight:750}.input-wrap{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}.input-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #6d7b541c}.input-wrap input{width:100%;border:0;padding:12px;font:inherit;outline:0}.input-wrap span{padding:0 11px;color:var(--muted);font-size:.82rem;font-weight:700}.check-field{display:flex;align-items:center;gap:9px;grid-column:1/-1;padding:10px;border:1px solid var(--line);border-radius:10px}.check-field input{width:18px;height:18px}.form-error{color:#8b2f27;background:#fff2ef;border:1px solid #edc7c0;padding:10px;border-radius:9px}.result-panel{background:linear-gradient(145deg,#fff,#f3f5ed)}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.result{padding:15px;border:1px solid var(--line);border-radius:12px;background:#fff}.result span{display:block;color:var(--muted);font-size:.78rem;margin-bottom:5px}.result strong{font-size:1.18rem}.method-note{color:var(--muted);font-size:.9rem;line-height:1.55;margin:18px 0}.result-actions{display:flex;gap:9px;flex-wrap:wrap}.result-actions button,.result-actions a{border-radius:9px;padding:11px 14px;font:inherit;font-weight:800;text-decoration:none;cursor:pointer}.result-actions button{border:1px solid var(--line);background:#fff}.result-actions a{background:var(--accent-dark);color:#fff}.safety-note{margin-top:14px;border-left:4px solid var(--accent);background:var(--soft);padding:14px 16px;line-height:1.55;color:var(--muted)}footer{text-align:center;border-top:1px solid var(--line);padding:22px;color:var(--muted);font-size:.85rem}html[data-embed=true] .utility-header,html[data-embed=true] .utility-hero,html[data-embed=true] footer{display:none}html[data-embed=true] main{width:100%;padding:0}html[data-embed=true] .calculator-shell{grid-template-columns:1fr}html[data-embed=true] .tool-tabs{margin:0 0 10px}html[data-embed=true] .safety-note{margin-bottom:0}@media(max-width:760px){.tool-tabs{grid-template-columns:repeat(5,145px)}.calculator-shell{grid-template-columns:1fr}.field-grid,.result-grid{grid-template-columns:1fr}.field.wide{grid-column:auto}.utility-hero h1{font-size:2.25rem}}@media print{.utility-header,.tool-tabs,.result-actions,.safety-note,footer{display:none}.calculator-shell{grid-template-columns:1fr}.calculator-shell>form{display:none}.result-panel{border:0;box-shadow:none}}