:root{color-scheme:light;--page:#f7f8fa;--surface:#fff;--text:#172033;--muted:#667085;--border:#d9dee8;--primary:#2563eb;--primary-hover:#1d4ed8;--error:#b42318;--focus:rgba(37,99,235,.18);--radius:12px;--control-height:52px;--gap:10px;--edge:20px}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main{width:min(720px,calc(100% - 2*var(--edge)));margin:clamp(80px,30svh,260px) auto 0}h1{margin:0 0 24px;font-size:26px;line-height:34px;font-weight:600;letter-spacing:-.5px}.download-row{display:flex;gap:var(--gap)}input,button{height:var(--control-height);border-radius:var(--radius);font:inherit;font-size:16px}input{flex:1;min-width:0;width:100%;padding:0 16px;border:1px solid var(--border);color:var(--text);background:var(--surface)}input::placeholder{color:var(--muted)}button{width:96px;flex:0 0 96px;border:1px solid transparent;background:var(--primary);color:var(--surface);font-weight:600;cursor:pointer}button:hover:enabled{background:var(--primary-hover)}button:disabled{opacity:.55;cursor:default}input:focus-visible,button:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-color:var(--primary)}#status{height:60px;margin:12px 0 0;font-size:14px;line-height:20px;color:var(--muted);overflow-wrap:anywhere}#status[data-kind=error]{color:var(--error)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}