.tr-tabs{flex-wrap:wrap;max-width:100%}.tr-tabs .bu-tab{min-height:44px}.tr-page-inner{margin:0 auto}.tr-wrap-text{overflow-wrap:anywhere}.tr-row{flex-wrap:wrap;align-items:center;gap:8px 12px;display:flex}.tr-main :focus-visible{outline:2px solid var(--ma-acc-br);outline-offset:2px}.tr-plain{white-space:pre-wrap;overflow-wrap:anywhere;margin:0;line-height:1.6}.tr-card-grid{gap:var(--ma-gap);grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));display:grid}.tr-card{min-width:0;position:relative}.tr-card>section{transition:border-color .15s}.tr-card:hover>section{border-color:var(--ma-acc-br)!important}.tr-stretch{color:var(--ma-deep);text-decoration:none}.tr-stretch:after{content:"";border-radius:var(--ma-radius);position:absolute;inset:0}.tr-stretch:focus-visible{outline:none}.tr-stretch:focus-visible:after{outline:2px solid var(--ma-acc-br);outline-offset:2px}.tr-above{z-index:1;position:relative}.tr-player{gap:var(--ma-gap);grid-template-columns:minmax(0,270px) minmax(0,1fr);align-items:start;display:grid}.tr-lessons-toggle{display:none}.tr-lesson-list{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex}.tr-lesson-item{width:100%;min-height:44px;color:var(--ma-text);text-align:left;cursor:pointer;box-sizing:border-box;background:0 0;border:1px solid #0000;border-radius:10px;align-items:center;gap:10px;padding:6px 10px;font-family:inherit;font-size:.92em;display:flex}.tr-lesson-item:hover{background:var(--ma-surface-2)}.tr-lesson-item[aria-current=step]{background:var(--ma-band-mid-tint);border-color:var(--ma-card-border);color:var(--ma-deep);font-weight:700}.tr-lesson-mark{border:1px solid var(--ma-card-border);width:24px;height:24px;color:var(--ma-muted);background:var(--ma-surface);border-radius:999px;flex:none;justify-content:center;align-items:center;font-size:.8em;font-weight:700;display:inline-flex}.tr-lesson-mark[data-done=true]{background:var(--ma-band-good-tint);color:var(--ma-band-good-ink);border-color:#0000}.tr-video{aspect-ratio:16/9;background:var(--ma-surface-3);border-radius:12px;width:100%;position:relative;overflow:hidden}.tr-video iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.tr-pdf{border:1px solid var(--ma-card-border);background:var(--ma-surface);border-radius:12px;width:100%;height:70vh;min-height:360px}.tr-media{border:1px solid var(--ma-card-border);border-radius:12px;max-width:100%;height:auto;display:block}.tr-question{border:0;flex-direction:column;gap:6px;min-width:0;margin:0;padding:0;display:flex}.tr-question legend{color:var(--ma-deep);overflow-wrap:anywhere;margin-bottom:6px;padding:0;font-weight:700;line-height:1.45}.tr-choice{border:1px solid var(--ma-card-border);background:var(--ma-surface);cursor:pointer;overflow-wrap:anywhere;box-sizing:border-box;border-radius:10px;align-items:center;gap:12px;min-height:48px;padding:8px 12px;line-height:1.4;display:flex}.tr-choice:hover{border-color:var(--ma-acc-br)}.tr-choice:has(input:checked){background:var(--ma-band-mid-tint);border-color:var(--ma-acc-br)}.tr-choice:has(input:focus-visible){outline:2px solid var(--ma-acc-br);outline-offset:2px}.tr-choice:has(input:disabled){cursor:default}.tr-choice input,.tr-check input{width:20px;height:20px;accent-color:var(--ma-acc);flex:none;margin:0}.tr-check{cursor:pointer;min-height:48px;color:var(--ma-deep);align-items:center;gap:12px;font-weight:600;display:flex}.tr-actions{border-top:1px solid var(--ma-hairline);flex-wrap:wrap;align-items:center;gap:10px;padding-top:14px;display:flex}.tr-actions-push{margin-left:auto}.tr-dl{grid-template-columns:max-content minmax(0,1fr);gap:8px 16px;margin:0;display:grid}.tr-dl dt{color:var(--ma-muted);font-size:.88em}.tr-dl dd{overflow-wrap:anywhere;margin:0;font-weight:600}@media (max-width:900px){.tr-player{grid-template-columns:minmax(0,1fr)}.tr-lessons-toggle{margin-bottom:8px;display:block}.tr-lessons-panel{display:none}.tr-lessons-panel[data-open=true]{display:block}.tr-pdf{height:60vh}}@media (max-width:520px){.tr-dl{grid-template-columns:minmax(0,1fr);gap:2px}.tr-dl dd{margin-bottom:8px}.tr-actions-push{margin-left:0}.tr-actions>*{flex:auto}}.tr-confetti{pointer-events:none;z-index:60;position:fixed;inset:0;overflow:hidden}.tr-confetti span{opacity:0;border-radius:2px;width:9px;height:14px;animation:1.2s ease-out forwards tr-confetti-fall;position:absolute;top:-12px}@keyframes tr-confetti-fall{0%{opacity:1;transform:translateY(0)rotate(0)}to{opacity:0;transform:translateY(70vh)rotate(540deg)}}@media (prefers-reduced-motion:reduce){.tr-confetti{display:none}}.tr-feedback{border-radius:12px;padding:12px 14px;line-height:1.5}.tr-feedback[data-right=true]{background:var(--ma-band-good-tint);color:var(--ma-band-good-ink)}.tr-feedback[data-right=false]{background:var(--ma-band-mid-tint);color:var(--ma-deep)}