/* Material/Quiz layouts adapted from the user's V4 references, using project tokens. */
.learning-material-study{display:grid;gap:20px;min-width:0}
.learning-watch-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,300px);gap:16px;align-items:start;min-width:0}
.learning-watch-layout--single{grid-template-columns:minmax(0,1fr)}
.learning-player-card{min-width:0;padding:0;overflow:hidden}
.learning-player-frame{display:grid;place-items:center;aspect-ratio:16/9;background:var(--navy950);min-width:0;overflow:hidden}
.learning-player-frame .material-media-player{display:block;width:100%;height:100%;max-height:none;aspect-ratio:16/9;object-fit:contain;border:0;border-radius:0}
.learning-media-empty{display:grid;gap:10px;padding:24px;text-align:center;color:#fff;justify-items:center}
.learning-media-empty>svg{width:42px;height:42px;color:var(--gold300)}
.learning-media-empty>span{color:var(--ink300);font-size:12px;line-height:1.6}
.learning-watch-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;min-width:0}
.learning-current-media{display:flex;align-items:center;gap:10px;min-width:0}
.learning-current-media>div{min-width:0}
.learning-media-number{flex:none;padding:8px;border-radius:9px;background:var(--navy50);color:var(--navy700);font:600 10px 'JetBrains Mono';white-space:nowrap}
.learning-current-media small{display:block;color:var(--ink500);font-size:10px;margin-bottom:4px}
.learning-current-media strong{display:block;color:var(--ink900);font-size:12px;line-height:1.5;overflow-wrap:anywhere}
.learning-media-navigation{display:flex;gap:6px;flex:none}
.learning-media-navigation .btn:disabled,.learning-question-navigation .btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.learning-media-caption{margin:0;padding:0 16px 12px;color:var(--ink500);font-size:12px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}
.learning-about{border-top:1px solid var(--ink100);padding:13px 16px}
.learning-about summary{cursor:pointer;font-size:12px;font-weight:700;color:var(--navy800)}
.learning-about p{margin:12px 0 2px;color:var(--ink600);line-height:1.75;white-space:pre-wrap;overflow-wrap:anywhere}
.learning-playlist{display:flex;flex-direction:column;gap:12px;min-width:0;max-height:560px;max-height:clamp(340px,62vh,560px);padding:16px}
.learning-playlist-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}
.learning-playlist-heading h2{margin:0;font-size:15px;color:var(--ink900)}
.learning-playlist-heading p{margin:5px 0 0;font-size:11px;color:var(--ink500)}
.learning-playlist-heading>svg{width:20px;height:20px;color:var(--navy500);flex:none}
.learning-inline-search{display:flex;align-items:center;gap:8px;padding:0 10px;min-height:38px;border:1px solid var(--ink200);border-radius:10px;background:var(--ink50);min-width:0}
.learning-inline-search>svg{flex:none;width:15px;height:15px;color:var(--ink500)}
.learning-inline-search input{width:100%;min-width:0;height:36px;padding:0;border:0;outline:0;background:transparent;color:var(--ink900);font:inherit;font-size:12px}
.learning-inline-search:focus-within{border-color:var(--navy500);box-shadow:0 0 0 3px rgba(76,114,165,.11);background:#fff}
.learning-playlist-items{display:grid;gap:6px;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:2px}
.learning-playlist-item{display:flex;align-items:center;gap:10px;width:100%;padding:11px 9px;border:1px solid transparent;border-radius:11px;background:transparent;color:var(--ink600);text-align:left;min-width:0}
.learning-playlist-item:hover{background:var(--ink50)}
.learning-playlist-item.active{background:var(--navy50);border-color:var(--navy200);color:var(--navy800)}
.learning-playlist-item:focus-visible{outline:2px solid var(--navy500);outline-offset:-2px}
.learning-playlist-number{display:grid;place-items:center;flex:none;min-width:28px;height:28px;padding:4px;border-radius:8px;background:var(--ink100);color:var(--ink500);font:600 10px 'JetBrains Mono'}
.learning-playlist-item.active .learning-playlist-number{background:var(--navy800);color:#fff}
.learning-playlist-copy{display:grid;gap:6px;min-width:0}
.learning-playlist-copy b{font-size:12px;line-height:1.5;overflow-wrap:anywhere}
.learning-playlist-copy small{display:flex;align-items:center;gap:5px;font-size:10px;color:var(--ink500)}
.learning-playlist-copy small svg{width:12px;height:12px}
.learning-list-empty{padding:22px 12px;text-align:center;color:var(--ink500);font-size:12px;line-height:1.6}
.learning-quiz-summary{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.learning-quiz-summary-copy{flex:1 1 240px;min-width:0}
.learning-quiz-summary-label{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:11px;font-weight:700;color:var(--navy700)}
.learning-quiz-summary-label>svg{width:16px;height:16px}
.learning-quiz-summary h2{font-size:16px;margin:9px 0 6px;overflow-wrap:anywhere}
.learning-quiz-summary-copy p{font-size:12px;color:var(--ink500);margin:0;line-height:1.6}
.learning-quiz-stats{display:flex;gap:20px;margin:0}
.learning-quiz-stats dt{font-size:10px;color:var(--ink500);margin-bottom:6px}
.learning-quiz-stats dd{margin:0;font-size:15px;font-weight:800;color:var(--ink900)}
.learning-quota-note{flex-basis:100%;margin:0;padding-top:12px;border-top:1px solid var(--ink100);color:var(--amber700);font-size:12px;line-height:1.6}
.learning-resources{min-width:0}
.learning-resources-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:14px}
.learning-resources-heading h2{display:flex;align-items:center;gap:9px;margin:0;font-size:18px}
.learning-resources-heading p{margin:6px 0 0;font-size:12px;color:var(--ink500)}
.learning-resources-heading .learning-inline-search{width:260px;max-width:100%}
.learning-resource-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.learning-resource-grid>[data-study-empty]{grid-column:1/-1}
.learning-resource-item{display:flex;align-items:center;gap:12px;min-width:0;padding:16px}
.learning-resource-icon{display:grid;place-items:center;flex:none;width:38px;height:42px;border-radius:10px;background:var(--navy50);color:var(--navy700)}
.learning-resource-icon svg{width:19px;height:19px}
.learning-resource-copy{flex:1;min-width:0}
.learning-resource-copy h3{margin:0;color:var(--ink900);font-size:12px;line-height:1.6;overflow-wrap:anywhere}
.learning-resource-copy p{font-size:11px;color:var(--ink500);line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere;margin:5px 0}
.learning-resource-copy small{display:block;margin-top:5px;color:var(--ink400);font-size:10px}
.learning-resource-item>a{flex:none;text-decoration:none}
.learning-playlist-item[hidden],.learning-resource-shell[hidden]{display:none}
.learning-resource-shell{min-width:0;padding:16px}
.learning-resource-shell .attachment-row{margin:0;padding:0;border:0;min-width:0}
.learning-resource-shell .attachment-row>div:not(.attachment-icon){min-width:0;flex:1;overflow-wrap:anywhere}
.learning-resource-shell .attachment-row b{font-size:12px;line-height:1.6}
.learning-resource-shell .attachment-row .btn{flex:none;text-decoration:none}
.learning-quiz-result{max-width:760px;margin:0 auto;text-align:center;padding:30px}
.learning-result-icon{width:42px;height:42px;color:var(--mint600);margin-bottom:12px}
.learning-result-score{font:800 48px 'JetBrains Mono';color:var(--navy800)}
.learning-quiz-result p{color:var(--ink500);line-height:1.6}
.learning-result-actions{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:18px}
@media(max-width:1100px){.learning-watch-toolbar{align-items:flex-start;flex-wrap:wrap}.learning-media-navigation{margin-left:auto}}
@media(max-width:960px){.learning-watch-layout{grid-template-columns:minmax(0,1fr)}.learning-playlist{max-height:360px}.learning-resource-grid{grid-template-columns:minmax(0,1fr)}}
@media(max-width:540px){.learning-media-navigation .btn span{display:none}.learning-media-navigation{margin-left:0}.learning-resource-item{gap:9px;padding:13px}.learning-resource-item>a svg{display:none}.learning-resource-icon{width:30px}.learning-quiz-summary>.btn{width:100%}.learning-resources-heading .learning-inline-search{width:100%}.learning-quiz-stats{gap:18px}.learning-correct-label{font-size:0;gap:0}}