/* Compact lesson shell: panels never overlap; only their content may scroll. */
.student-workspace[hidden], .student-workspace [hidden] { display: none !important; }
.compact-quiz-footer { padding: 8px 12px; background: #f8f8f6; border-top: 1px solid #dddeda; }
.compact-quiz-footer:has(.quiz-submit.is-hidden) { display: none; }
.compact-quiz-footer .quiz-submit { display: block; width: 100%; margin: 0; }
.workspace-tabs { display: flex; gap: 4px; padding: 5px 8px; background: #1b222d; border-bottom: 1px solid #303948; }
.workspace-tabs button { display: flex; justify-content: center; align-items: center; gap: 7px; flex: 1; min-height: 44px; border: 0; border-radius: 10px; color: #bbc4d1; background: transparent; font-family: inherit; font-size: 14px; line-height: 1.2; font-weight: 750; }
body:has(.live-view.is-compact-layout:not(.is-hidden)) .toast-region { top: 58px; bottom: auto; pointer-events: none; }
.workspace-tabs button[aria-selected="true"] { color: #fff; background: #354153; box-shadow: inset 0 0 0 1px #536277; }
.workspace-tabs button:disabled { opacity: .5; cursor: default; }
.workspace-tabs button:focus-visible, .quiz-image-expand:focus-visible { outline: 3px solid #72bdff; outline-offset: -3px; }
.workspace-badge { min-width: 20px; padding: 3px 5px; border-radius: 20px; color: #fff; background: var(--brand, #dc2626); font-size: 11px; }
.quiz-image-wrap { position: relative; }
.quiz-image-expand { position: absolute; right: 5px; bottom: 5px; min-height: 36px; padding: 5px 9px; background: #fff; border: 1px solid #cad0d9; border-radius: 8px; color: #222; font-size: 12px; box-shadow: 0 2px 8px #0002; }
.quiz-image-dialog, .student-orientation-notice { box-sizing: border-box; position: fixed; margin: 0; left: calc(env(safe-area-inset-left, 0px) + (100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)) / 2); top: calc(env(safe-area-inset-top, 0px) + (100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)) / 2); transform: translate(-50%, -50%); width: min(1100px, calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 24px)); max-width: none; max-height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 24px); padding: 12px; border: 0; border-radius: 16px; color: #202734; background: #f8f8f6; }
.quiz-image-dialog[open] { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; height: min(900px, calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 24px)); }
.quiz-image-dialog::backdrop { background: #080c14d9; }
.quiz-image-dialog header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.quiz-image-dialog button { min-width: 44px; min-height: 44px; border: 1px solid #cbd1d9; border-radius: 10px; }
.quiz-image-dialog img { display: block; width: 100%; height: 100%; min-height: 0; object-fit: contain; }
.quiz-image-dialog p { margin: 5px 0; font-size: 13px; }
.student-orientation-notice { width: min(400px, calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 32px)); padding: 20px; text-align: center; overflow: auto; }
.student-orientation-notice::backdrop { background: #080c14b8; }
.orientation-phone { display: block; color: var(--brand, #dc2626); font-size: 32px; line-height: 1; }
.student-orientation-notice h2 { margin: 12px 0 8px; font-size: 20px; line-height: 1.25; }
.student-orientation-notice p { margin: 0 0 16px; font-size: 14px; line-height: 1.45; }
.student-orientation-notice button { width: 100%; min-height: 44px; padding: 10px 14px; border: 1px solid #b8c3d1; border-radius: 10px; color: #202734; background: #fff; font: inherit; cursor: pointer; }
.student-orientation-notice button:focus-visible, .quiz-image-dialog button:focus-visible { outline: 3px solid #2479c2; outline-offset: 2px; }
.live-view:not(.is-compact-layout).is-quiz-active .quiz-scroll { grid-template-columns: minmax(0, 1fr); }
.live-view:not(.is-compact-layout).is-quiz-active .live-quiz:not(.has-image) .quiz-scroll { grid-template-columns: minmax(0, 1fr); }
.quiz-option-text, .live-quiz h2 { overflow-wrap: anywhere; }

.live-view.is-compact-layout { --student-safe-bottom: env(safe-area-inset-bottom, 0px); box-sizing: border-box; position: fixed; inset: auto 0; top: var(--student-viewport-top, 0px); height: var(--student-viewport-height, 100dvh); min-height: 0; padding: env(safe-area-inset-top, 0px) env(safe-area-inset-right, 0px) var(--student-safe-bottom) env(safe-area-inset-left, 0px); display: grid; grid-template-rows: 48px minmax(0, 1fr); overflow: hidden; }
.live-view.is-compact-layout.is-hidden { display: none; }
.is-compact-layout .live-header { min-width: 0; min-height: 48px; height: 48px; padding: 2px 8px; grid-template-columns: auto minmax(0,1fr) auto; gap: 8px; }
.is-compact-layout .leave-top-button { min-width: 44px; min-height: 44px; height: 44px; padding: 8px; font-size: 12px; }
.is-compact-layout .live-heading { justify-content: start; gap: 6px; }
.is-compact-layout .live-heading h1 { font-size: 12px; }
.is-compact-layout .brand-live > span { display: none; }
.is-compact-layout .brand-live img { width: auto; max-width: 120px; height: 32px; padding: 4px 6px; }
.is-compact-layout .live-heading .live-mark { padding: 5px 6px; font-size: 10px; white-space: nowrap; }
.live-view.is-compact-layout .live-main { display: block; height: auto; min-height: 0; overflow: hidden; }
.live-view.is-compact-layout .video-column { height: 100%; padding: 6px 8px 0; display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: clamp(96px, 20dvh, 190px) 44px minmax(0, 1fr); gap: 6px; overflow: hidden; }
.live-view.is-compact-layout .video-shell, .live-view.is-compact-layout .video-shell.rost-live-room { position: relative; inset: auto; z-index: 0; grid-row: 1; width: 100%; height: 100%; min-height: 0; aspect-ratio: auto; padding: 0; border: 0; border-radius: 12px; box-shadow: none; grid-template-rows: minmax(0,1fr); }
.is-compact-layout .video-shell .rost-live-room__status, .is-compact-layout .video-shell .rost-live-tile__meta { display: none; }
.is-compact-layout .video-shell .rost-live-room__stage, .is-compact-layout .video-shell .rost-live-room__videos { width: 100%; height: 100%; min-height: 0; padding: 0; }
.is-compact-layout .video-shell video { object-fit: contain !important; }
.live-view.is-compact-layout .control-bar { grid-row: 2; padding: 0; gap: 5px; min-height: 0; }
.is-compact-layout .media-control { min-width: 0; min-height: 44px; height: 44px; flex: 1; padding: 3px; gap: 2px; }
.is-compact-layout .control-label { font-size: 10px; line-height: 1.15; }
.is-compact-layout .control-icon { font-size: 14px; line-height: 1; }
.is-compact-layout .leave-control { display: none; }
.is-compact-layout .student-quality-control { position: relative; flex: 1; min-width: 0; height: 44px; margin: 0; gap: 0; }
.is-compact-layout .student-quality-control label { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.is-compact-layout .student-quality-control select { width: 100%; min-width: 0; min-height: 44px; height: 44px; padding: 5px; font-size: 12px; }
.is-compact-layout .speech-status { display: none; }
.live-view.is-compact-layout .student-workspace { grid-row: 3; min-width: 0; min-height: 0; display: grid; grid-template-rows: 46px minmax(0,1fr); overflow: hidden; border: 1px solid #303948; border-radius: 13px 13px 0 0; }
.is-compact-layout .workspace-tabs { padding: 1px 4px; }
.live-view.is-compact-layout .live-quiz { position: relative; inset: auto; grid-row: 2; width: 100%; height: 100%; min-height: 0; overflow: hidden; border: 0; border-radius: 0; box-shadow: none; grid-template-rows: auto minmax(0,1fr) auto; animation: none; }
.live-view.is-compact-layout .quiz-header { min-height: 30px; padding: 5px 8px; }
.is-compact-layout .quiz-header > div { display: flex; width: 100%; justify-content: space-between; align-items: center; gap: 6px; flex-wrap: wrap; }
.is-compact-layout .quiz-kicker { font-size: 10px; }
.is-compact-layout .quiz-header small { font-size: 11px; margin: 0; white-space: normal; }
.live-view.is-compact-layout .quiz-scroll { display: flex; flex-direction: column; gap: 10px; min-width: 0; min-height: 0; padding: 0 10px 12px; overflow: auto; overscroll-behavior: contain; }
.live-view.is-compact-layout .quiz-scroll > * { flex: 0 0 auto; min-width: 0; }
.live-view.is-compact-layout .live-quiz h2 { order: 1; margin: 0; font-size: 18px; line-height: 1.35; }
.live-view.is-compact-layout .quiz-image-wrap { order: 0; width: calc(100% + 20px); height: auto; max-height: none; aspect-ratio: auto; margin: 0 -10px; border: 0; border-radius: 0; background: transparent; overflow: visible; }
.live-view.is-compact-layout .quiz-image-wrap img { width: 100%; height: auto; max-height: none; aspect-ratio: auto; object-fit: contain; object-position: center; border-radius: 0; }
.is-compact-layout .quiz-image-expand { position: static; display: block; margin: 4px 0 0 auto; min-height: 44px; box-shadow: none; }
.live-view.is-compact-layout .quiz-options { order: 2; gap: 7px; }
.live-view.is-compact-layout .quiz-option { min-height: 48px; height: auto; max-height: none; padding: 9px; gap: 8px; grid-template-columns: 26px minmax(0,1fr) 16px; }
.is-compact-layout .quiz-option-text { font-size: 18px; line-height: 1.4; -webkit-line-clamp: unset; display: block; max-height: none; overflow: visible; }
.is-compact-layout .quiz-option-letter { width: 26px; height: 26px; font-size: 14px; }
.live-view.is-compact-layout .quiz-result { order: 3; margin: 0; }
.live-view.is-compact-layout .compact-quiz-footer { display: block !important; padding: 4px 8px; background: #f8f8f6; border-top: 1px solid #dddeda; }
.live-view.is-compact-layout .compact-quiz-footer:has(.quiz-submit.is-hidden) { display: none !important; }
.live-view.is-compact-layout .quiz-submit { position: static; width: 100%; height: auto; min-height: 44px; margin: 0; }
.live-view.is-compact-layout .chat-panel { grid-row: 2; width: 100%; height: 100%; min-width: 0; min-height: 0; border: 0; overflow: hidden; display: grid; grid-template-rows: auto minmax(0,1fr) auto; }
.is-compact-layout .chat-panel > header { min-height: 36px; padding: 8px 12px; }
.is-compact-layout .chat-panel > header > div { display: flex; gap: 10px; align-items: center; justify-content: space-between; width: 100%; }
.is-compact-layout .chat-messages { min-height: 0; padding: 8px; overscroll-behavior: contain; }
.is-compact-layout .chat-form { padding: 4px 8px; }
.is-compact-layout .chat-form textarea { font-size: 16px; min-height: 44px; }
.is-compact-layout .chat-form button { min-width: 44px; min-height: 44px; }
.is-compact-layout .recording-notice { z-index: 10; top: 10px; left: 12px; max-width: calc(100% - 24px); min-height: 24px; padding: 5px 8px; font-size: 10px; }
.live-view.is-compact-layout.is-quiz-active .video-column { grid-template-columns: clamp(72px, 22vw, 180px) minmax(0, 1fr); grid-template-rows: clamp(54px, 10dvh, 96px) minmax(0, 1fr); }
.live-view.is-compact-layout.is-quiz-active .video-shell { grid-column: 1; grid-row: 1; }
.live-view.is-compact-layout.is-quiz-active .control-bar { grid-column: 2; grid-row: 1; display: grid; grid-template-columns: minmax(0,1.4fr) minmax(0,.8fr) minmax(62px,1fr); align-items: center; }
.live-view.is-compact-layout.is-quiz-active .student-workspace { grid-column: 1 / -1; grid-row: 2; }
@media (min-width: 480px) and (orientation: landscape) {
  .live-view.is-compact-layout .video-column, .live-view.is-compact-layout.is-quiz-active .video-column { grid-template-columns: minmax(112px,.35fr) minmax(0,1fr); grid-template-rows: minmax(48px,1fr) 92px; padding: 6px 8px; gap: 6px; }
  .live-view.is-compact-layout .video-shell { grid-column: 1; grid-row: 1; }
  .live-view.is-compact-layout .control-bar, .live-view.is-compact-layout.is-quiz-active .control-bar { grid-column: 1; grid-row: 2; display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); grid-template-rows: 44px 44px; gap: 4px; }
  .is-compact-layout .microphone-control-group { grid-column: 1 / -1; }
  .is-compact-layout .student-quality-control { grid-column: 2; }
  .live-view.is-compact-layout .student-workspace, .live-view.is-compact-layout.is-quiz-active .student-workspace { grid-column: 2; grid-row: 1 / 3; border-radius: 13px; }
  .is-compact-layout .recording-notice { max-width: 32%; }
}
/* Focused typing gets the full workspace, regardless of orientation. */
.live-view.is-compact-layout.is-keyboard-open { --student-safe-bottom: 0px; }
.live-view.is-compact-layout.is-keyboard-open .video-column { grid-template-columns: minmax(0,1fr); grid-template-rows: minmax(0,1fr); padding: 4px 8px; gap: 0; }
.live-view.is-compact-layout.is-keyboard-open .video-shell, .live-view.is-compact-layout.is-keyboard-open .control-bar { display: none; }
.live-view.is-compact-layout.is-keyboard-open .student-workspace { grid-column: 1; grid-row: 1; grid-template-rows: minmax(0,1fr); }
.live-view.is-compact-layout.is-keyboard-open .workspace-tabs, .live-view.is-compact-layout.is-keyboard-open .chat-panel > header { display: none; }
.live-view.is-compact-layout.is-keyboard-open .chat-panel, .live-view.is-compact-layout.is-keyboard-open .live-quiz { grid-row: 1; }
@media (max-width: 600px) and (orientation: portrait) {
  .is-compact-layout .quiz-kicker { display: none; }
  .is-compact-layout .quiz-header { min-height: 24px; padding: 4px 8px; }
}

/* Keep image enlargement beside the status, leaving the road scene unobscured. */
.quiz-header { gap: 8px; }
.quiz-header .quiz-image-expand { position: static; flex-shrink: 0; min-height: 30px; padding: 5px 8px; margin: 0 0 0 auto; box-shadow: none; white-space: nowrap; }
.live-view.is-compact-layout .quiz-header { padding-block: 2px; }
.live-quiz:not(.has-image) .quiz-header .quiz-image-expand { display: none; }
.live-view:not(.is-compact-layout) .quiz-header > div { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; }
.live-view:not(.is-compact-layout) .quiz-header small { margin: 0; }