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strong{font-size:14.5px}.nav-next{text-align:right;align-items:flex-end}.lesson-nav .locked{opacity:.6;cursor:not-allowed;border-style:dashed}.lesson-nav .locked:hover{border-color:var(--border)}.lesson-missing{max-width:500px;margin:60px auto;text-align:center}@media (max-width: 860px){.sidebar{position:fixed;left:0;top:0;z-index:60;transform:translate(-100%);transition:transform .25s ease;box-shadow:0 0 40px #0006}.sidebar.open{transform:translate(0)}.hamburger{display:block}.scrim{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:50}.stat-row{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:27px}}@media (max-width: 480px){.stat-row{grid-template-columns:1fr 1fr}.lesson-nav{flex-direction:column}.lesson-nav a{max-width:100%}.dashboard,.lesson{padding-left:16px;padding-right:16px}}