:root { color-scheme: dark; font: 16px/1.55 system-ui, sans-serif; color: #eff4fc; background: #0d1420; }
* { box-sizing: border-box; }
body { margin: 0; }
main { max-width: 960px; margin: 0 auto; padding: 40px 20px 64px; }
h1 { font-size: clamp(2rem, 6vw, 3.25rem); line-height: 1.1; margin: 8px 0 20px; }
h2 { font-size: 1.15rem; margin: 0 0 16px; }
.eyebrow { color: #70e9c0; letter-spacing: .18em; font-weight: 700; font-size: .8rem; }
.intro, .hint { color: #aebbd0; }
.hint { font-size: .875rem; }
section { padding: 24px; border: 1px solid #2a3950; border-radius: 16px; background: #141f30; margin: 20px 0; }
.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.columns section { margin: 0; min-width: 0; }
label { display: block; margin: 12px 0; }
input, select, button { font: inherit; border-radius: 8px; }
input:not([type=checkbox]), select { display: block; width: 100%; color: inherit; background: #0d1420; border: 1px solid #40536f; padding: 10px; margin-top: 6px; }
.check { display: flex; align-items: center; gap: 10px; }
input[type=checkbox] { width: 20px; height: 20px; accent-color: #70e9c0; }
button { border: 1px solid transparent; background: #70e9c0; color: #08291e; padding: 11px 18px; font-weight: 650; cursor: pointer; }
button:disabled { opacity: .5; cursor: default; }
button.secondary { background: transparent; border-color: #40536f; color: #eff4fc; }
:focus-visible { outline: 3px solid #70e9c0; outline-offset: 3px; }
a { color: #70e9c0; display: block; overflow-wrap: anywhere; }
#qr { display: block; max-width: 100%; height: auto; background: white; border: 10px solid white; border-radius: 10px; margin-bottom: 16px; }
#peers { padding-left: 20px; overflow-wrap: anywhere; }
pre { white-space: pre-wrap; font: 12px/1.65 ui-monospace, monospace; max-height: 240px; overflow-y: auto; color: #aebbd0; }
@media (max-width: 650px) { .columns { grid-template-columns: 1fr; } main { padding-top: 24px; } section { padding: 20px; } }