body { font: 16px/1.5 system-ui, sans-serif; max-width: 760px; margin: 2rem auto; padding: 0 1rem; color: #222; }
h1 { font-size: 1.6rem; }
a { color: #1d4ed8; }
input, textarea { width: 100%; box-sizing: border-box; font: inherit; padding: .45rem; margin: .2rem 0 .7rem; border: 1px solid #bbb; border-radius: 6px; }
input[type=checkbox] { width: auto; margin: 0 .3rem 0 0; }
textarea { min-height: 8rem; }
button, .button { font: inherit; padding: .45rem 1rem; cursor: pointer; border: 1px solid #1d4ed8; border-radius: 6px; background: #2563eb; color: #fff; text-decoration: none; display: inline-block; }
button.secondary { background: #fff; color: #1d4ed8; }
.item { border: 1px solid #ddd; border-radius: 8px; padding: .8rem 1rem; margin: .8rem 0; }
.item.off { opacity: .55; }
.item h3 { margin: 0 0 .3rem; font-size: 1.05rem; }
.item p { white-space: pre-wrap; margin: .3rem 0; }
.meta { color: #666; font-size: .85rem; margin-bottom: .5rem; }
.plat label { display: inline-block; margin: 0 1rem .4rem 0; }
.err { color: #b91c1c; }
.top { display: flex; justify-content: space-between; align-items: center; }
ol li { margin-bottom: .5rem; }
code { background: #f1f5f9; padding: .1rem .3rem; border-radius: 4px; }