/* HumAIn course workbench */
.course-entry { margin: 28px 0 34px; padding: 26px; border: 1px solid rgba(116, 235, 255, .22); background: linear-gradient(135deg, rgba(12, 24, 35, .94), rgba(11, 15, 23, .94)); }
.course-entry-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(250px, .65fr); gap: 28px; align-items: start; }
.course-entry h2 { margin: 6px 0 10px; }
.course-entry p { max-width: 72ch; }
.course-map { display: grid; gap: 8px; }
.course-map div { display: flex; gap: 12px; align-items: center; padding: 10px 12px; border-left: 2px solid rgba(116, 235, 255, .5); background: rgba(255, 255, 255, .03); }
.course-map strong { color: #7cecff; font-family: var(--mono, monospace); }
.course-map span { color: #d6e4ec; }
.course-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr; gap: 8px; align-items: stretch; margin-top: 24px; padding: 14px; border: 1px solid rgba(255,255,255,.12); background: rgba(0,0,0,.16); }
.course-flow div { display: grid; gap: 3px; padding: 10px; background: rgba(116,235,255,.045); }
.course-flow b { color: #7cecff; font: .75rem var(--mono, monospace); }
.course-flow span { color: #f0f8fb; }
.course-flow small { color: #8da3ae; line-height: 1.35; }
.course-flow i { align-self: center; color: #ffbf47; font-style: normal; }
.course-boundary { margin: 12px 0 0; color: #a7bac3; font-size: .82rem; }
.course-workbench { margin-top: 28px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); }
.course-workbench-head { display: flex; justify-content: space-between; gap: 18px; align-items: start; }
.course-workbench-head h3 { margin: 4px 0; }
.course-controls { display: flex; align-items: end; gap: 14px; color: #9fb2bf; font-size: .85rem; }
.course-controls label, .course-replay label { display: grid; gap: 4px; }
.course-controls select, .course-replay select { background: #0d151d; color: #ecf7fb; border: 1px solid #34515f; padding: 8px; }
.course-prompt { display: grid; grid-template-columns: auto 1fr; gap: 12px; margin: 18px 0; padding: 15px; background: rgba(255, 191, 71, .07); border: 1px solid rgba(255, 191, 71, .2); }
.course-prompt span, .course-replay .kicker { color: #ffcf72; font-size: .72rem; letter-spacing: .1em; }
.course-prompt p { margin: 0; color: #f2e0b3; }
.course-messages { min-height: 100px; max-height: 390px; overflow: auto; display: grid; gap: 10px; padding: 14px; background: #080d12; border: 1px solid rgba(255,255,255,.1); }
.course-message { padding: 10px 12px; border-left: 2px solid #4db7cb; background: rgba(255,255,255,.035); }
.course-message.user { border-left-color: #ffbf47; }
.course-message b { color: #8de9f4; font-size: .78rem; }
.course-message.user b { color: #ffd27b; }
.course-message p { margin: 5px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.course-empty { margin: auto; color: #79909e; text-align: center; }
.course-input-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: 12px; }
.course-input-row textarea { width: 100%; resize: vertical; min-height: 72px; color: #f1f8fa; background: #0b1219; border: 1px solid #34515f; padding: 12px; font: inherit; }
.course-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 12px; color: #9fb2bf; font-size: .82rem; }
.file-button { position: relative; overflow: hidden; cursor: pointer; }
.file-button input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.course-replay { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; margin-top: 20px; padding: 16px; border: 1px solid rgba(116,235,255,.17); background: rgba(116,235,255,.035); }
.course-replay p { margin: 4px 0; }
.course-replay-output { grid-column: 1 / -1; padding: 12px; border-top: 1px solid rgba(255,255,255,.1); color: #c8d9e1; white-space: pre-wrap; overflow-wrap: anywhere; }
@media (max-width: 720px) {
  .course-entry { padding: 18px; }
  .course-entry-grid, .course-replay { grid-template-columns: 1fr; }
  .course-flow { grid-template-columns: 1fr; }
  .course-flow i { transform: rotate(90deg); justify-self: center; }
  .course-workbench-head { display: grid; }
  .course-input-row { grid-template-columns: 1fr; }
  .course-replay-output { grid-column: 1; }
}