:root{--accent:#1f6feb;--accent-dark:#1a5fd0;--accent-tint:#ddf0ff;--ink:#1b1f24;--muted:#57606a;--line:#d0d7de;--bg:#f6f8fa;--card:#fff;--warn-bg:#fff8e6;--warn-line:#e3b341}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--accent)}:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}.site-header{background:var(--card);border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:4px 24px;padding:8px max(16px,50% - 534px);display:flex}.brand{letter-spacing:.02em;color:var(--ink);padding:8px 4px;font-size:1.1rem;font-weight:700;text-decoration:none}.site-nav{flex-wrap:wrap;gap:2px;display:flex}.site-nav a{color:var(--muted);border-radius:8px;padding:10px 12px;font-weight:500;text-decoration:none;display:inline-block}.site-nav a:hover{background:var(--bg);color:var(--ink)}.site-nav a[aria-current=page]{background:var(--accent-tint);color:var(--accent-dark);font-weight:600}main{max-width:1100px;margin:0 auto;padding:24px 16px 8px}h1{margin:8px 0 6px;font-size:1.7rem;line-height:1.25}.lede{color:var(--muted);max-width:72ch;margin:0 0 4px}#converter-form{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-block:20px;padding:16px}.panels{grid-template-columns:1fr 1fr;gap:16px;display:grid}@media (width<=700px){.panels{grid-template-columns:1fr}}.panel{flex-direction:column;gap:8px;min-width:0;display:flex}.panel-label{font-weight:600}textarea{resize:vertical;border:1px solid var(--line);background:var(--card);width:100%;min-height:240px;color:var(--ink);border-radius:8px;padding:10px;font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}textarea[readonly]{background:var(--bg)}.hint,.filename{color:var(--muted);overflow-wrap:anywhere;margin:0;font-size:.85rem}.file-group{margin-bottom:4px}.file-label{margin-bottom:6px;font-size:.9rem;font-weight:600;display:block}input[type=file]{max-width:100%;min-height:44px;font:inherit;display:block}#status{overflow-wrap:anywhere;min-height:1.5em;margin:8px 0 12px;font-weight:600}.actions{flex-wrap:wrap;gap:10px;margin-top:16px;display:flex}button{border:1px solid var(--line);background:var(--card);min-height:44px;color:var(--ink);font:inherit;cursor:pointer;border-radius:8px;padding:8px 18px;font-weight:600}button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}#convert{background:var(--accent);border-color:var(--accent);color:#fff}#convert:hover:not(:disabled){background:var(--accent-dark);color:#fff}button:disabled{opacity:.5;cursor:not-allowed}.warnings{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:8px;margin-top:12px;padding:12px}.warnings-title{margin:0 0 6px;font-weight:600}.warnings ul{margin:0;padding-left:20px}.warnings li{overflow-wrap:anywhere}.nojs-notice,.notice{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:8px;padding:12px}.native-ad{border-block:1px solid var(--line);overflow-wrap:anywhere;min-width:0;margin:32px 0;padding:16px 0}.ad-label{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin:0 0 12px;font-size:.75rem}#ad-choices p{max-width:76ch;margin:0 0 12px}.ad-actions{flex-wrap:wrap;gap:12px;margin-bottom:12px;display:flex}.native-ad[hidden],.native-ad [hidden]{display:none!important}.native-ad-slot{max-width:100%}.native-ad-slot iframe{border:0;width:100%;display:block}.ad-loading .native-ad-slot{min-height:280px}.native-ad.ad-empty{visibility:hidden;pointer-events:none;border:0;height:0;margin:0;padding:0;position:absolute;inset-inline:16px;overflow:hidden}.explain{max-width:76ch}.explain h2{margin-top:28px;font-size:1.25rem}.explain p,.explain li{overflow-wrap:anywhere}details{background:var(--card);border:1px solid var(--line);border-radius:8px;margin-block:8px;padding:10px 14px}summary{cursor:pointer;padding:6px 0;font-weight:600}details p{margin:6px 0 4px}.all-converters{padding-left:20px}.site-footer{border-top:1px solid var(--line);max-width:1100px;color:var(--muted);margin:32px auto 0;padding:16px;font-size:.85rem}