body { font-family: "Times New Roman", serif; max-width: 980px; margin: 1.5rem auto; padding: 0 1rem; color: #111; }
table { border-collapse: collapse; margin: .5rem 0 1rem; font-size: .92rem; }
th, td { border-bottom: 1px solid #bbb; padding: .25rem .6rem; text-align: left; }
th { border-top: 2px solid #000; border-bottom: 1px solid #000; }
.err { color: #a00; font-weight: bold; }
.warn { background: #fff4d6; padding: .4rem .7rem; border-left: 4px solid #d90; margin: .5rem 0; }
.ai { font-style: italic; color: #444; }
.box { border: 1px solid #ccc; padding: .6rem .9rem; margin: .8rem 0; }
nav a { margin-right: 1rem; }
button { padding: .3rem .8rem; }
code { background: #eee; padding: 0 .2rem; }
.qr svg { width: 260px; height: 260px; }
form.inline { display: inline; }