.code-example[data-astro-cid-u5jpinqg]:hover{transform:translateY(-1px);box-shadow:0 4px 12px #0000001a}.lesson-nav[data-astro-cid-fxoyduz7]{z-index:40;align-items:flex-start;height:calc(100vh - 4rem);transition:transform .3s;display:flex;position:fixed;top:4rem;right:0;transform:translate(320px)}.lesson-nav[data-astro-cid-fxoyduz7].open{transform:translate(0)}.lesson-nav-toggle[data-astro-cid-fxoyduz7]{background:var(--color-surface);border:1px solid var(--color-border);cursor:pointer;width:2.5rem;height:2.5rem;color:var(--color-text-muted);border-right:none;border-radius:.5rem 0 0 .5rem;flex-shrink:0;justify-content:center;align-items:center;margin-top:1rem;transition:background .2s,color .2s;display:flex}.lesson-nav-toggle[data-astro-cid-fxoyduz7]:hover{background:var(--color-surface-alt);color:var(--color-text)}.lesson-nav[data-astro-cid-fxoyduz7] .toggle-icon[data-astro-cid-fxoyduz7]{transition:transform .3s}.lesson-nav[data-astro-cid-fxoyduz7].open .toggle-icon[data-astro-cid-fxoyduz7]{transform:rotate(180deg)}.lesson-nav-panel[data-astro-cid-fxoyduz7]{background:var(--color-surface);border-left:1px solid var(--color-border);flex-direction:column;width:320px;height:100%;display:flex;overflow:hidden}.lesson-nav-header[data-astro-cid-fxoyduz7]{border-bottom:1px solid var(--color-border);background:var(--color-surface-alt);padding:1rem 1.25rem}.lesson-nav[data-astro-cid-fxoyduz7] .course-title[data-astro-cid-fxoyduz7]{color:var(--color-text);margin-bottom:.75rem;font-size:.95rem;font-weight:600;text-decoration:none;display:block}.lesson-nav[data-astro-cid-fxoyduz7] .course-title[data-astro-cid-fxoyduz7]:hover{color:var(--color-primary)}.lesson-nav[data-astro-cid-fxoyduz7] .progress-info[data-astro-cid-fxoyduz7]{flex-direction:column;gap:.375rem;display:flex}.lesson-nav[data-astro-cid-fxoyduz7] .progress-text[data-astro-cid-fxoyduz7]{color:var(--color-text-muted);font-size:.75rem}.lesson-nav[data-astro-cid-fxoyduz7] .progress-bar-container[data-astro-cid-fxoyduz7]{background:var(--color-border);border-radius:2px;height:4px;overflow:hidden}.lesson-nav[data-astro-cid-fxoyduz7] .progress-bar-fill[data-astro-cid-fxoyduz7]{background:var(--color-primary);border-radius:2px;height:100%;transition:width .3s}.lesson-nav-content[data-astro-cid-fxoyduz7]{flex:1;padding:1rem 0;overflow-y:auto}.lesson-nav[data-astro-cid-fxoyduz7] .module-group[data-astro-cid-fxoyduz7]{margin-bottom:1.25rem}.lesson-nav[data-astro-cid-fxoyduz7] .module-title[data-astro-cid-fxoyduz7]{text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted);margin-bottom:.5rem;padding:0 1.25rem;font-size:.7rem;font-weight:600}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-list[data-astro-cid-fxoyduz7]{margin:0;padding:0;list-style:none}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-link[data-astro-cid-fxoyduz7]{color:var(--color-text);border-left:3px solid #0000;align-items:center;gap:.625rem;padding:.5rem 1.25rem;font-size:.85rem;text-decoration:none;transition:all .15s;display:flex}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-link[data-astro-cid-fxoyduz7]:hover{background:var(--color-surface-alt)}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-link[data-astro-cid-fxoyduz7].active{background:color-mix(in oklab, var(--color-primary) 10%, transparent);border-left-color:var(--color-primary);color:var(--color-primary)}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-number[data-astro-cid-fxoyduz7]{background:var(--color-border);width:1.5rem;height:1.5rem;color:var(--color-text-muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.7rem;font-weight:600;display:flex}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-link[data-astro-cid-fxoyduz7].completed .lesson-number[data-astro-cid-fxoyduz7]{background:var(--color-success);color:#fff}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-link[data-astro-cid-fxoyduz7].active .lesson-number[data-astro-cid-fxoyduz7]{background:var(--color-primary);color:#fff}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-title[data-astro-cid-fxoyduz7]{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.lesson-nav[data-astro-cid-fxoyduz7] .lesson-time[data-astro-cid-fxoyduz7]{color:var(--color-text-muted);flex-shrink:0;font-size:.7rem}@media (width<=1023px){.lesson-nav[data-astro-cid-fxoyduz7]{display:none}}.astro-route-announcer{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;top:0;left:0;overflow:hidden}html.quiz-hidden .quiz-container{display:none!important}.quiz-toggle[data-astro-cid-d7zya7re].quiz-on{background-color:color-mix(in oklab, var(--color-primary) 10%, transparent);color:var(--color-primary);border-color:color-mix(in oklab, var(--color-primary) 30%, transparent)}.quiz-toggle[data-astro-cid-d7zya7re].quiz-on:hover{background-color:color-mix(in oklab, var(--color-primary) 20%, transparent)}.quiz-toggle[data-astro-cid-d7zya7re].quiz-off{background-color:var(--color-surface-alt);color:var(--color-text-muted);border-color:var(--color-border)}.quiz-toggle[data-astro-cid-d7zya7re].quiz-off:hover{background-color:var(--color-surface);color:var(--color-text)}.line-clamp-2[data-astro-cid-g6whx7bi]{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}