body { font-family: system-ui, sans-serif; margin: 0; background: #0f172a; color: #e2e8f0; }
main { max-width: 640px; margin: 0 auto; padding: 2rem 1.25rem; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.05rem; margin-top: 1.5rem; }
.actions { margin: 1rem 0; }
button { font-size: 1rem; padding: .5rem 1rem; margin-right: .5rem; border: 0; border-radius: 6px; background: #2563eb; color: #fff; cursor: pointer; }
button:disabled { background: #475569; cursor: not-allowed; }
pre { background: #1e293b; padding: .75rem; border-radius: 6px; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
a { color: #60a5fa; }
ul { list-style: none; padding: 0; }
li { background: #1e293b; padding: .75rem; border-radius: 6px; margin-bottom: .5rem; }
li.empty { background: transparent; color: #94a3b8; padding-left: 0; }
small { color: #94a3b8; display: block; margin-top: .25rem; }