* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.4 -apple-system, system-ui, sans-serif; background: #111; color: #eee; }
main { max-width: 520px; margin: 0 auto; padding: 16px; }
h1 { font-size: 20px; margin: 0 0 4px; }
.muted { color: #999; margin: 0 0 12px; }
label { display: block; margin: 8px 0; }
input { width: 100%; padding: 8px; font-size: 16px; border-radius: 8px; border: 1px solid #444; background: #222; color: #eee; }
.steps { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 12px 0; }
button { padding: 12px 8px; font-size: 16px; border: 0; border-radius: 10px; background: #333; color: #eee; }
button.primary { grid-column: 1 / -1; background: #2a6; color: #fff; }
button.ok { background: #264; }
button.bad { background: #733; }
.meter { height: 10px; background: #222; border-radius: 5px; overflow: hidden; }
#level { height: 100%; width: 0; background: #4c8; transition: width .08s; }
.status { color: #cde; }
table { width: 100%; border-collapse: collapse; margin: 8px 0; font-size: 14px; }
td { padding: 4px 6px; border-bottom: 1px solid #333; vertical-align: top; }
td:first-child { color: #999; white-space: nowrap; }
pre { font-size: 12px; white-space: pre-wrap; word-break: break-word; background: #181818; padding: 8px; border-radius: 8px; max-height: 40vh; overflow: auto; }