* { box-sizing: border-box; }
html, body { margin: 0; background: #0b0d10; color: #f2f4f7; font: 18px/1.4 -apple-system, "Helvetica Neue", Arial, sans-serif; }
body { padding: 16px; }
h1 { font-size: 22px; margin: 0 0 4px; }
p { margin: 6px 0; color: #aab2bd; }
.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 12px 0; }
input { font-size: 34px; width: 230px; padding: 10px 14px; text-align: center; letter-spacing: 4px; border: 2px solid #3a424d; border-radius: 10px; background: #151a20; color: #fff; }
button { font-size: 22px; font-weight: 600; padding: 14px 26px; border: 0; border-radius: 10px; background: #2f81f7; color: #fff; }
button.secondary { background: #2a313a; }
button:disabled { opacity: .45; }
.code { font-size: 64px; font-weight: 700; letter-spacing: 6px; margin: 8px 0; }
.steps { margin: 12px 0; border: 1px solid #262c34; border-radius: 10px; overflow: hidden; }
.step { display: flex; gap: 12px; padding: 10px 14px; border-top: 1px solid #262c34; align-items: baseline; }
.step:first-child { border-top: 0; }
.step .mark { width: 24px; font-weight: 700; text-align: center; }
.step .name { min-width: 210px; font-weight: 600; }
.step .detail { color: #aab2bd; word-break: break-word; }
.step.ok .mark { color: #3fb950; }
.step.bad .mark, .step.bad .detail { color: #f85149; }
.step.wait .mark { color: #d29922; }
#addresses { margin: 8px 0; padding: 10px 14px; border: 1px solid #262c34; border-radius: 10px; font: 17px/1.5 Menlo, Consolas, monospace; color: #e3b341; white-space: pre-wrap; word-break: break-word; }
#path { font-family: Menlo, Consolas, monospace; font-size: 15px; color: #79c0ff; word-break: break-all; }
.stage { background: #000; border-radius: 10px; overflow: hidden; margin: 12px 0; text-align: center; }
.stage video, .stage canvas { display: block; width: 100%; max-height: 70vh; margin: 0 auto; background: #000; object-fit: contain; }
video.preview { width: 220px; border-radius: 8px; background: #000; }
#log { height: 220px; overflow: auto; margin: 12px 0 0; padding: 10px; border: 1px solid #262c34; border-radius: 10px; background: #0f1318; color: #9aa4af; font: 13px/1.45 Menlo, Consolas, monospace; white-space: pre-wrap; word-break: break-all; }
textarea { width: 100%; height: 160px; background: #0f1318; color: #c9d1d9; border: 1px solid #262c34; border-radius: 10px; font: 12px Menlo, monospace; }
[hidden] { display: none !important; }