*{box-sizing:border-box}
body{margin:0;font:14px/1.4 system-ui,sans-serif;background:#0b0f17;color:#e6edf3}
header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:#111827;border-bottom:1px solid #1f2937}
h1{margin:0;font-size:18px}
#status-pill{font-size:12px;padding:4px 10px;border-radius:999px;background:#374151}
main{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:16px;max-width:1280px;margin:0 auto}
.panel{background:#111827;border:1px solid #1f2937;border-radius:10px;padding:16px}
.panel.wide{grid-column:1/-1}
h2{margin:0 0 12px;font-size:15px;color:#93c5fd}
form{display:flex;flex-direction:column;gap:12px}
label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:#9ca3af}
input[type=text],input:not([type]),input[type=file]{background:#0b0f17;border:1px solid #1f2937;border-radius:6px;padding:8px;color:#e6edf3}
fieldset{border:1px solid #1f2937;border-radius:6px;padding:8px 12px}
legend{font-size:12px;color:#9ca3af}
.radio{flex-direction:row;align-items:center;gap:6px}
button{background:#2563eb;border:0;border-radius:6px;color:#fff;padding:10px;font-weight:600;cursor:pointer}
button:hover{background:#1d4ed8}
#stop-btn{background:#dc2626}
#session-list{list-style:none;padding:0;margin:0}
#session-list li{padding:8px;border-bottom:1px solid #1f2937;display:flex;justify-content:space-between;align-items:center}
.muted{color:#6b7280}
#preview{width:100%;max-width:512px;border-radius:8px;background:#000}
.meta{display:flex;gap:16px;margin-top:8px;font-size:12px;color:#9ca3af}
code{background:#0b0f17;padding:2px 6px;border-radius:4px}
.hint{font-size:11px;color:#6b7280;margin:0}