:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:#fff;--surface:#f7f7f7;--text:#1a1a1a;--text-muted:#666;--border:#e6e6e6;--accent:#06c755;--accent-text:#fff;--radius:12px}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#1a1a1a;--surface:#262626;--text:#f0f0f0;--text-muted:#999;--border:#333}}*{box-sizing:border-box}html,body{height:100%;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,system-ui,sans-serif;font-size:16px;line-height:1.5}.app{flex-direction:column;gap:16px;max-width:420px;margin:0 auto;padding:24px 20px 40px;display:flex}.header{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.title{margin:0;font-size:22px;font-weight:600}.lang-toggle{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:2px;display:inline-flex}.lang-btn{color:var(--text-muted);cursor:pointer;letter-spacing:.02em;background:0 0;border:none;border-radius:999px;padding:6px 14px;font-size:12px;font-weight:500}.lang-btn[aria-pressed=true]{background:var(--bg);color:var(--text);box-shadow:0 1px 2px #0000000f}.field{flex-direction:column;gap:6px;display:flex}.label{color:var(--text-muted);font-size:13px}.input-wrap{position:relative}.input{width:100%;padding:14px var(--suffix-pad,40px) 14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);text-align:right;font-feature-settings:"tnum";outline:none;font-size:18px;font-weight:500;transition:border-color .15s}.input:focus{border-color:var(--accent)}.suffix{color:var(--text-muted);pointer-events:none;font-size:14px;position:absolute;top:50%;right:14px;transform:translateY(-50%)}.result{background:var(--surface);border-radius:var(--radius);justify-content:space-between;align-items:baseline;margin-top:4px;padding:16px 18px;display:flex}.result-label{color:var(--text-muted);font-size:13px}.result-value{font-feature-settings:"tnum";font-size:28px;font-weight:600}.share-btn{background:var(--accent);width:100%;color:var(--accent-text);border-radius:var(--radius);cursor:pointer;border:none;margin-top:12px;padding:14px;font-size:15px;font-weight:600;transition:opacity .15s,transform 50ms}.share-btn:hover{opacity:.92}.share-btn:active{transform:scale(.99)}.share-btn:disabled{opacity:.4;cursor:not-allowed}