:root{--bg:#fbfaf7;--surface:#ffffff;--text:#1c1f24;--muted:#5d6470;--line:#e4e1da;--accent:#1f5f4a;--accent-soft:#e6f0eb;--warn:#8a4b0f;--warn-soft:#fbf0e3;--radius:10px;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text)}@media (prefers-color-scheme:dark){:root{--bg:#14171b;--surface:#1c2026;--text:#e8e6e1;--muted:#9aa1ab;--line:#2c323a;--accent:#6fc3a2;--accent-soft:#1d2f29;--warn:#f0b878;--warn-soft:#33281c}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--accent)}.wrap{max-width:860px;margin:0 auto;padding:0 16px}main.wrap{padding-top:24px;padding-bottom:48px}.site-header{border-bottom:1px solid var(--line);background:var(--surface)}.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}.logo{font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--text);letter-spacing:-.01em}nav{display:flex;gap:16px;flex-wrap:wrap;font-size:.95rem}nav a{color:var(--muted);text-decoration:none}nav a:hover{color:var(--text)}h1{font-size:clamp(1.6rem,4vw,2.2rem);line-height:1.2;letter-spacing:-.02em;margin:8px 0 12px}h2{font-size:1.3rem;margin-top:36px}h3{font-size:1.05rem;margin-top:24px}.lede{font-size:1.1rem;max-width:680px}.lede,.muted{color:var(--muted)}.muted{font-size:.9rem}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:20px 0}.tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:16px;gap:16px}.tools .card{margin:0}.tools a.card{text-decoration:none;color:var(--text);display:block}.tools a.card:hover{border-color:var(--accent)}.form{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:14px 18px;gap:14px 18px}.form,label{display:grid}label{grid-gap:6px;gap:6px;align-content:start;font-size:.9rem;font-weight:600}label small{order:3;font-weight:400;color:var(--muted)}input,select{font:inherit;padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text);width:100%}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}.result{background:var(--accent-soft);border-radius:var(--radius);padding:18px 20px;margin-top:20px}.result .big{font-size:1.8rem;font-weight:700;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.note{background:var(--warn-soft);color:var(--warn);border-radius:8px;padding:12px 14px;font-size:.92rem;margin-top:14px}.note a{color:inherit}table{width:100%;border-collapse:collapse;font-size:.93rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}td,th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{font-weight:600;color:var(--muted)}.table-scroll{overflow-x:auto}.site-footer{border-top:1px solid var(--line);padding:24px 0 40px;font-size:.9rem;color:var(--muted)}.disclaimer{max-width:680px}.buy{border-color:var(--accent)}a.button{display:inline-block;background:var(--accent);color:var(--surface);padding:10px 18px;border-radius:8px;text-decoration:none;font-weight:600}a.button:hover{opacity:.9}