*{box-sizing:border-box;margin:0;padding:0}
body{font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#0d1117;display:flex;align-items:center;justify-content:center;min-height:100vh}
.box{width:260px}
input{width:100%;background:#161b22;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#e6edf3;padding:11px 14px;font-size:15px;outline:none;margin-bottom:10px;transition:border-color .15s}
input:focus{border-color:#3b9eff}
button{width:100%;background:#3b9eff;border:none;border-radius:8px;color:#fff;padding:11px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s}
button:hover{opacity:.85}
.err{color:#f87171;font-size:12px;margin-top:10px;text-align:center;display:none}
.err.is-visible{display:block}
.auth-page-admin input[type=password]{border-color:rgba(248,113,113,.25)}
.auth-page-admin input:focus{border-color:#f87171}
.auth-page-admin button{background:#7f1d1d;color:#fca5a5}