:root {
  --bg: #0b1020;
  --card: #111936;
  --text: #e6eaf2;
  --muted: #a8b0c4;
  --border: rgba(255,255,255,0.08);
}
body { margin: 0; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial; background: var(--bg); color: var(--text); }
.shell { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 24px; }
.card { width: min(560px, 100%); background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.row { display: flex; gap: 10px; align-items: center; margin: 10px 0; }
.row label { width: 90px; color: var(--muted); }
.msg { margin-top: 10px; min-height: 22px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

.topbar { display: flex; gap: 12px; align-items: center; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid var(--border); background: rgba(17,25,54,0.6); position: sticky; top: 0; backdrop-filter: blur(8px); }
.brand { display: flex; gap: 10px; align-items: baseline; }
.search { flex: 1; max-width: 560px; }
.userbox { display: flex; align-items: center; gap: 10px; }
.content { padding: 14px; }

.panel { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px; }
.pre { background: rgba(0,0,0,0.35); border: 1px solid var(--border); padding: 10px; border-radius: 12px; overflow: auto; white-space: pre-wrap; min-height: 110px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.box { background: rgba(0,0,0,0.22); border: 1px solid var(--border); border-radius: 14px; padding: 12px; }
.k-widget { background: transparent; }
.training-questions { margin-top: 16px; }
.training-question-list { padding-left: 18px; display: grid; gap: 12px; }
.training-question textarea { width: 100%; margin-top: 6px; resize: vertical; }
.training-upload { display: none; margin-bottom: 16px; padding: 12px; border: 1px dashed #384761; border-radius: 6px; }
.training-upload .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.training-signature { margin-top: 18px; padding: 16px; border: 1px solid #1f2a3f; border-radius: 8px; background: #0f1624; }
.training-signature-grid { display: grid; gap: 12px; }
#trainingSignaturePad { width: 100%; height: 160px; background: #fff; border-radius: 6px; }
.question-prompt { margin: 0; font-weight: 600; }