body{font-family:system-ui,Arial,sans-serif;margin:0;background:#fff;color:#111}
main{max-width:1100px;margin:0 auto;padding:16px}
h1,h2{margin:.4em 0}
input,select,button,textarea{font:inherit;padding:6px 8px;margin:2px}
button{cursor:pointer}
nav button.on{font-weight:bold;text-decoration:underline}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{border:1px solid #ccc;padding:4px 6px;text-align:left;vertical-align:top;word-break:break-all}
.wrap{overflow-x:auto}
.err{color:#b00020}.good{color:#0a7a2f}
textarea{width:100%;height:140px;font-family:monospace}
.hide{display:none}