:root{--bg:#fff;--surface:#fff;--surface-subtle:#f7f8fa;--text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--accent:#0d9488;--accent-text:#fff;--radius:14px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}[hidden]{display:none!important}body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;margin:0;font-family:Hiragino Sans,Noto Sans JP,Yu Gothic UI,Meiryo,system-ui,sans-serif;line-height:1.6}.site-header{text-align:center;padding:28px 16px 8px}.top-nav{border-bottom:1px solid var(--border);padding:10px 16px}.top-nav-link{color:var(--text);align-items:center;gap:8px;font-size:.85rem;font-weight:600;text-decoration:none;display:inline-flex}.top-nav-link:hover,.top-nav-link:focus-visible{color:var(--accent)}.top-nav-link svg{border-radius:4px;flex:none;width:18px;height:18px}.site-header h1{margin:0;font-size:1.6rem}.tagline{color:var(--muted);margin:4px 0 0;font-size:.9rem}.layout{grid-template-columns:minmax(0,1fr);grid-template-areas:"input""stats""about""support";gap:14px;max-width:1040px;margin:0 auto;padding:16px;display:grid}.area-input{grid-area:input}.area-stats{grid-area:stats}.area-about{grid-area:about}.area-support{grid-area:support}@media (width>=820px){.layout{grid-template-columns:minmax(0,1fr) 360px;grid-template-areas:"input stats""about stats""support stats";align-items:start}.area-stats{position:sticky;top:16px}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:0 1px 2px #1018280a}.card h2{margin:16px 0 10px;font-size:1rem}.card h2:first-child{margin-top:0}.field{margin-top:10px;display:block}.field:first-of-type{margin-top:0}.label{color:var(--muted);justify-content:space-between;margin-bottom:4px;font-size:.85rem;display:flex}textarea{width:100%;font:inherit;border:1px solid var(--border);background:var(--surface);color:var(--text);resize:vertical;border-radius:10px;min-height:12em;padding:10px 12px;font-size:16px;line-height:1.6}textarea:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.input-actions{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.btn{min-height:44px;font:inherit;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:0 16px;font-weight:600;text-decoration:none;display:inline-flex}.btn:hover:not(:disabled){border-color:var(--accent)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.ghost{background:0 0}.stat-grid{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.stat-tile{background:var(--surface-subtle);border-radius:10px;gap:2px;padding:12px;display:grid}.stat-tile-main{grid-column:1/-1}.stat-value{font-variant-numeric:tabular-nums;font-size:1.6rem;font-weight:700}.stat-tile-main .stat-value{color:var(--accent);font-size:2.2rem}.stat-label{color:var(--muted);font-size:.78rem}.breakdown-list{gap:6px;margin:0;padding:0;list-style:none;display:grid}.breakdown-list li{background:var(--surface-subtle);border-radius:8px;justify-content:space-between;padding:6px 10px;font-size:.9rem;display:flex}.breakdown-list li span:last-child{font-variant-numeric:tabular-nums;font-weight:600}.area-about p{color:var(--muted);line-height:1.7}.area-about h3{margin-top:20px}.how-to{color:var(--muted);padding-left:1.3em;line-height:1.8}.area-about details{border-top:1px solid var(--border);padding:10px 0}.area-about summary{cursor:pointer;font-weight:600}.area-about details p{margin:8px 0 0}.support{text-align:center}.support p{color:var(--muted);margin:0 0 12px;font-size:.9rem}.support-buttons{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.btn.coffee{color:#1f2937;background:#fd0;border-color:#fd0}.btn.amazon{color:#1f2937;background:#f90;border-color:#f90}.site-footer{text-align:center;color:var(--muted);padding:16px 16px 32px}