/* Live Lesson hub only. Session, builder and library keep their existing styles. */
body.live-lesson-practice .module-header p { color: var(--muted); font-size: 15px; line-height: 1.7; }
body.live-lesson-practice .tandem-grid { grid-template-columns: repeat(auto-fit,minmax(min(100%,320px),1fr)); gap: 24px; align-items: start; }
body.live-lesson-practice .tandem-card,
body.live-lesson-practice .history-row,
body.live-lesson-practice .history-stat,
body.live-lesson-practice .empty-state,
body.live-lesson-practice .rejoin-banner { background: var(--practice-card); border-color: var(--border); border-radius: 16px; box-shadow: none; }
body.live-lesson-practice .tandem-card { min-width: 0; padding: 24px; }
body.live-lesson-practice .tandem-card h2 { color: var(--text); font-size: 24px; font-weight: 500; line-height: 1.5; gap: 12px; margin-bottom: 12px; }
body.live-lesson-practice .tandem-card h2 .btn-icon-inline { color: var(--sky); }
body.live-lesson-practice .tandem-card p { color: var(--muted); font-size: 14px; line-height: 1.7; margin-bottom: 20px; }
body.live-lesson-practice .tandem-card label,
body.live-lesson-practice .history-field label { display: block; color: var(--muted); font-size: 14px; font-weight: 500; line-height: 1.6; letter-spacing: 0; text-transform: none; margin: 16px 0 10px; }
body.live-lesson-practice .tandem-card .input,
body.live-lesson-practice .history-tools .input,
body.live-lesson-practice .history-tools select { width: 100%; min-width: 0; min-height: 52px; padding: 14px 16px; color: var(--text); background: var(--bg); border-color: var(--border2); border-radius: 12px; font-size: 17px; font-weight: 400; line-height: 1.6; }
body.live-lesson-practice .tandem-card .input:focus { border-color: var(--sky); }
body.live-lesson-practice .input::placeholder { color: var(--muted); }
body.live-lesson-practice .tandem-card .code-input { font-size: 24px; font-weight: 500; letter-spacing: .12em; color: var(--sky); }
body.live-lesson-practice .btn { min-height: 48px; max-width: 100%; padding: 12px 16px; color: var(--muted); background: transparent; border-color: var(--border2); border-radius: 12px; font-size: 14px; font-weight: 500; line-height: 1.6; text-align: center; }
body.live-lesson-practice .btn:hover { color: var(--text); background: var(--surface2); }
html[data-theme] body.live-lesson-practice .btn.primary,
html[data-theme] body.live-lesson-practice .btn.teacher,
html[data-theme] body.live-lesson-practice .btn.student { color: var(--practice-on-accent) !important; background: var(--sky); border-color: var(--sky); font-weight: 600; }
html[data-theme] body.live-lesson-practice .btn.primary:hover,
html[data-theme] body.live-lesson-practice .btn.teacher:hover,
html[data-theme] body.live-lesson-practice .btn.student:hover { background: var(--sky2); }
html[data-theme] body.live-lesson-practice .btn.gold { color: var(--muted) !important; background: transparent; border-color: var(--border2); }
html[data-theme] body.live-lesson-practice .btn:disabled,
html[data-theme] body.live-lesson-practice .btn[aria-disabled="true"] { color: var(--muted) !important; background: var(--bg3); border-color: var(--border); opacity: 1; cursor: not-allowed; }
body.live-lesson-practice .lesson-target { background: var(--bg); border-color: var(--border); border-radius: 14px; padding: 20px; margin: 20px 0 8px; }
body.live-lesson-practice .lesson-target-title { color: var(--text); font-size: 17px; font-weight: 500; line-height: 1.6; margin-bottom: 12px; }
body.live-lesson-practice .lesson-target-help,
body.live-lesson-practice .lesson-target-status,
body.live-lesson-practice .join-status,
body.live-lesson-practice .lesson-action-status { color: var(--muted); font-size: 14px; line-height: 1.7; overflow-wrap: anywhere; }
body.live-lesson-practice .lesson-action-status { margin-bottom: 16px; }
body.live-lesson-practice .lesson-action-status:empty { display: none; }
body.live-lesson-practice .lesson-target .input { font-size: 15px; margin-bottom: 12px; }
body.live-lesson-practice .lesson-target-status.linked,
body.live-lesson-practice .join-status.ready { color: var(--mint); font-weight: 500; }
body.live-lesson-practice .lesson-target-status.guest,
body.live-lesson-practice .join-status.warn { color: var(--gold); }
body.live-lesson-practice .join-steps { gap: 12px; margin-bottom: 24px; }
body.live-lesson-practice .join-step { background: var(--bg); border-color: var(--border); border-radius: 12px; padding: 14px; gap: 12px; color: var(--muted); font-size: 14px; line-height: 1.7; }
body.live-lesson-practice .join-step .num { width: 24px; height: 24px; background: var(--practice-accent-wash); color: var(--sky); font-size: 12px; font-weight: 500; }
body.live-lesson-practice .tandem-error { color: var(--coral); background: var(--practice-card); border-color: var(--coral); font-size: 14px; line-height: 1.7; padding: 16px; overflow-wrap: anywhere; }
body.live-lesson-practice .rejoin-banner { gap: 16px; padding: 24px; margin-bottom: 24px; }
body.live-lesson-practice .rejoin-banner .icon { color: var(--sky); }
body.live-lesson-practice .rejoin-banner .main { min-width: 0; flex: 1 1 240px; }
body.live-lesson-practice .rejoin-banner .title { color: var(--text); font-size: 20px; font-weight: 500; line-height: 1.6; margin-bottom: 12px; }
body.live-lesson-practice .rejoin-banner .sub { color: var(--muted); font-size: 14px; line-height: 1.7; overflow-wrap: anywhere; }
body.live-lesson-practice .rejoin-banner .actions { flex-wrap: wrap; gap: 12px; }
body.live-lesson-practice .rejoin-dismiss { min-width: 44px; min-height: 44px; border: 1px solid var(--border2); border-radius: 12px; background: var(--bg); }
body.live-lesson-practice .history-section { margin-top: 32px; }
body.live-lesson-practice .history-section h2 { color: var(--text); font-size: 22px; font-weight: 500; line-height: 1.6; letter-spacing: 0; text-transform: none; margin-bottom: 20px; }
body.live-lesson-practice .history-stats { grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; margin-bottom: 24px; }
body.live-lesson-practice .history-stat { min-width: 0; padding: 20px; }
body.live-lesson-practice .history-stat .num { color: var(--text); font-size: 28px; font-weight: 500; line-height: 1.4; overflow-wrap: anywhere; }
body.live-lesson-practice .history-stat .lbl { color: var(--muted); font-size: 13px; font-weight: 500; line-height: 1.6; letter-spacing: 0; text-transform: none; margin-top: 8px; overflow-wrap: anywhere; }
body.live-lesson-practice .history-tools { display: grid; grid-template-columns: minmax(0,2fr) minmax(0,1fr); gap: 16px; margin-bottom: 24px; }
body.live-lesson-practice .history-field { min-width: 0; }
body.live-lesson-practice .history-field label { margin-top: 0; }
body.live-lesson-practice .history-row { flex-wrap: wrap; gap: 16px; padding: 24px; margin-bottom: 16px; }
body.live-lesson-practice .history-row:hover { background: var(--practice-card); border-color: var(--border2); }
body.live-lesson-practice .history-icon { color: var(--sky); background: var(--practice-accent-wash); }
body.live-lesson-practice .history-title { color: var(--text); font-size: 19px; font-weight: 500; line-height: 1.6; overflow-wrap: anywhere; }
body.live-lesson-practice .history-meta { color: var(--muted); font-size: 13px; line-height: 1.7; margin-top: 8px; overflow-wrap: anywhere; }
body.live-lesson-practice .history-actions { gap: 12px; flex-wrap: wrap; }
body.live-lesson-practice .history-pack-status { min-width: 0; color: var(--muted); font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; }
body.live-lesson-practice .history-pack-status.ok { color: var(--mint); }
body.live-lesson-practice .history-pack-status.err { color: var(--coral); }
body.live-lesson-practice .history-status { font-size: 12px; font-weight: 500; line-height: 1.6; letter-spacing: 0; text-transform: none; padding: 6px 12px; }
body.live-lesson-practice .history-status.active { color: var(--mint); background: var(--bg); border-color: var(--border); }
body.live-lesson-practice .homework-panel { background: var(--bg); padding-top: 24px !important; }
body.live-lesson-practice .homework-panel .history-main { flex-basis: 100%; }
body.live-lesson-practice .homework-panel label { color: var(--text); font-size: 14px; line-height: 1.7; min-height: 44px; }
body.live-lesson-practice .homework-panel input { width: 20px; height: 20px; accent-color: var(--sky); flex-shrink: 0; }
body.live-lesson-practice .lesson-section-head { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 16px; justify-content: space-between; }
body.live-lesson-practice .lesson-section-head h2 { margin-bottom: 12px; }
body.live-lesson-practice .empty-state { padding: 28px 24px; color: var(--muted); font-size: 15px; line-height: 1.7; }
body.live-lesson-practice .empty-state strong { color: var(--text); font-size: 20px; font-weight: 500; line-height: 1.6; margin-bottom: 12px; }
@media (max-width: 700px) {
  body.live-lesson-practice .tandem-grid { grid-template-columns: minmax(0,1fr); }
  body.live-lesson-practice .tandem-card,
  body.live-lesson-practice .rejoin-banner,
  body.live-lesson-practice .history-row { padding: 20px; }
  body.live-lesson-practice .lesson-target { padding: 16px; }
  body.live-lesson-practice .history-stats { grid-template-columns: repeat(2,minmax(0,1fr)); }
  body.live-lesson-practice .history-tools { grid-template-columns: minmax(0,1fr); }
  body.live-lesson-practice .history-main { flex-basis: calc(100% - 58px); }
  body.live-lesson-practice .history-actions { width: 100%; justify-content: flex-start; }
  body.live-lesson-practice .history-actions .btn { flex: 1 1 150px; }
  body.live-lesson-practice .rejoin-banner .actions { width: 100%; }
}
html.pp-embedded-exercise body.live-lesson-practice .main-content { padding-top: 28px !important; }

body.live-lesson-practice .share-actions { display:flex; flex-wrap:wrap; gap:10px; margin:16px 0; }
body.live-lesson-practice #shareStudentLink { font-size:14px; letter-spacing:0; }
body.live-lesson-practice #studentCard .btn { display:inline-flex; margin:0 8px 16px 0; }
body.live-lesson-practice [hidden] { display:none!important; }