:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:#183044;background:#f1f5f9;color-scheme:light}*{box-sizing:border-box}body{margin:0}main{max-width:660px;margin:auto;padding:28px 20px}h1{font-size:32px;margin:8px 0}p{line-height:1.6;color:#536475}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.15em;color:#168076}.panel{background:#fff;border:1px solid #dae3eb;border-radius:16px;padding:20px;margin:18px 0;box-shadow:0 6px 24px #18304408}label{display:block;font-weight:600;margin:16px 0 8px}input,select,button{font:inherit;border-radius:9px;min-height:44px}input,select{width:100%;padding:10px;border:1px solid #bdcbd8;background:white;color:#183044}button{background:#107d74;color:#fff;border:0;padding:12px 16px;cursor:pointer;font-weight:600}button:disabled{opacity:.55;cursor:wait}.secondary{background:#e8eef4;color:#183044}.buttons{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}form button{margin-top:12px;width:100%}#reader{overflow:hidden;border-radius:10px;min-height:80px;background:#f6f8fa}#connection{padding:12px;border-radius:9px;background:#e8eef4;line-height:1.5}.good{background:#e1f5eb!important;color:#176a43}.bad{background:#fff0ec!important;color:#a73925}#result{white-space:pre-line;line-height:1.65;overflow-wrap:anywhere}.footnote{font-size:13px}video{max-width:100%}