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var(--color-border);padding-block-end:var(--space-4);display:grid}.app-shell-module__tbH91q__navLink,.app-shell-module__tbH91q__activeLink,.app-shell-module__tbH91q__plannedLink{align-items:center;gap:var(--space-3);min-height:2.4rem;padding-inline:var(--space-3);border-radius:var(--radius-sm);color:var(--color-text-muted);font-size:var(--text-sm);display:flex}.app-shell-module__tbH91q__activeLink{background:var(--color-accent-soft);color:var(--color-accent);font-weight:700}.app-shell-module__tbH91q__plannedLink{opacity:.65;cursor:not-allowed}.app-shell-module__tbH91q__plannedLink small{letter-spacing:.08em;text-transform:uppercase;margin-inline-start:auto;font-size:.6rem}.app-shell-module__tbH91q__icon{border-radius:var(--radius-sm);width:1.3rem;height:1.3rem;font-size:var(--text-xs);border:1px solid;place-items:center;display:grid}.app-shell-module__tbH91q__courseTree{padding:var(--space-5) var(--space-2)}.app-shell-module__tbH91q__overline{color:var(--color-text-muted);letter-spacing:.13em;text-transform:uppercase;font-size:.65rem}.app-shell-module__tbH91q__courseTree h2{margin-block:var(--space-2);font-family:var(--font-serif);font-size:var(--text-base);line-height:1.25}.app-shell-module__tbH91q__courseTree ol{gap:var(--space-1);color:var(--color-text-muted);font-size:var(--text-xs);list-style:none;display:grid}.app-shell-module__tbH91q__courseTree ol>li{padding:var(--space-2) 0}.app-shell-module__tbH91q__courseTree ol>li>span{width:1rem;color:var(--color-text-muted);display:inline-grid}.app-shell-module__tbH91q__currentModule{font-weight:700;color:var(--color-text)!important}.app-shell-module__tbH91q__primer{border-block-end:1px solid var(--color-border);margin-block-end:var(--space-2)}.app-shell-module__tbH91q__primer>span{letter-spacing:.08em;text-transform:uppercase;font-weight:700;width:auto!important;color:var(--color-accent)!important}.app-shell-module__tbH91q__lessonLinks{margin:var(--space-2) 0 0 var(--space-2);border-inline-start:1px solid var(--color-border);padding-inline-start:var(--space-4);font-weight:400;list-style:none}.app-shell-module__tbH91q__lessonLinks a,.app-shell-module__tbH91q__plannedLesson{justify-content:space-between;align-items:baseline;gap:var(--space-2);padding-block:var(--space-2);color:var(--color-text-muted);display:flex}.app-shell-module__tbH91q__lessonLinks a:hover{color:var(--color-accent)}.app-shell-module__tbH91q__activeLesson{font-weight:700;color:var(--color-accent)!important}.app-shell-module__tbH91q__plannedLesson{cursor:not-allowed;opacity:.7}.app-shell-module__tbH91q__plannedLesson small{color:var(--color-text-muted);letter-spacing:.08em;text-transform:uppercase;font-size:.6rem}.app-shell-module__tbH91q__profile{align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-2) 0;border-block-start:1px solid var(--color-border);font-size:var(--text-xs);display:flex}.app-shell-module__tbH91q__profile strong,.app-shell-module__tbH91q__profile small{display:block}.app-shell-module__tbH91q__profile small{color:var(--color-text-muted);margin-block-start:var(--space-1)}.app-shell-module__tbH91q__avatar{border:1px solid var(--color-border);background:var(--color-paper);width:2rem;height:2rem;font-family:var(--font-serif);border-radius:50%;flex:none;place-items:center;display:grid}.app-shell-module__tbH91q__mainColumn{grid-template-rows:auto 1fr;min-width:0;display:grid}.app-shell-module__tbH91q__topbar{height:3.25rem;padding-inline:var(--space-6);border-block-end:1px solid var(--color-border);color:var(--color-text-muted);font-size:var(--text-xs);justify-content:space-between;align-items:center;display:flex}.app-shell-module__tbH91q__prototypeBadge{color:var(--color-accent);letter-spacing:.08em;text-transform:uppercase;font-weight:700}.app-shell-module__tbH91q__main{background:var(--color-paper);min-width:0}.app-shell-module__tbH91q__menuButton,.app-shell-module__tbH91q__scrim{display:none}@media (max-width:52rem){.app-shell-module__tbH91q__app{display:block}.app-shell-module__tbH91q__sidebar{width:min(var(--sidebar-width), 86vw);visibility:hidden;pointer-events:none;transition:transform var(--motion-normal) var(--motion-ease), visibility 0s linear var(--motion-normal);box-shadow:var(--shadow-app);position:fixed;inset:0 auto 0 0;transform:translate(-105%)}.app-shell-module__tbH91q__sidebar:has(.app-shell-module__tbH91q__navigation[data-open=true]){visibility:visible;pointer-events:auto;transition-delay:0s;transform:translate(0)}.app-shell-module__tbH91q__menuButton{z-index:50;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-paper);width:2.25rem;height:2.25rem;color:var(--color-text);cursor:pointer;place-items:center;display:grid;position:fixed;inset-block-start:var(--space-2);inset-inline-start:var(--space-3)}.app-shell-module__tbH91q__scrim{z-index:20;background:var(--color-overlay);border:0;display:block;position:fixed;inset:0}.app-shell-module__tbH91q__topbar{padding-inline:4rem var(--space-4)}}