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var(--line);background:var(--paper,#f8f7f3);max-width:none;max-height:none;color:var(--ink,#17171c);border-radius:14px;margin:0;padding:0;font-family:inherit;position:fixed;overflow:hidden;box-shadow:0 14px 60px #0002}.player dialog.course-guide[open]{flex-direction:column;animation:.18s ease-out guide-enter;display:flex}.course-guide::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#17171c55}.course-guide__header{background:#fff;flex-shrink:0;justify-content:space-between;align-items:center;padding:20px 22px 12px;display:flex}.course-guide__header p{letter-spacing:.1em;color:var(--accent);margin:0 0 4px;font-size:10px;font-weight:650}.course-guide__header h2{font:600 26px/1.2 var(--academy-font-display,inherit);color:var(--ink);margin:0}.course-guide__header button{border:1px solid 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20px;padding:12px 14px;font-size:15px;line-height:1.5}.course-guide__reply-label{color:var(--muted);margin:0 0 8px;font-size:11px}.course-guide .guide-answer{color:var(--ink);overflow-wrap:anywhere;font-family:inherit}.course-guide .guide-answer p,.course-guide .guide-answer li{font-size:16px;line-height:1.65}.course-guide .guide-answer p:first-child{margin-top:0}.course-guide .guide-answer h3{font-size:19px}.course-guide__sources,.course-guide__more{border-top:1px solid var(--line);margin-top:12px}.course-guide summary{min-height:44px;color:var(--muted);cursor:pointer;padding:13px 0;font-size:13px}.course-guide__return{width:100%;min-height:44px;color:var(--accent);font:inherit;background:0 0;border:0;justify-content:space-between;align-items:center;margin-top:14px;padding:8px 0;font-size:14px;display:flex}.course-guide__composer{padding:14px 20px max(12px,env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fff;flex-shrink:0;margin:0}.course-guide__composer 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