.lesson-checkmark[data-astro-cid-wezysgif]{display:inline-flex;align-items:center;gap:var(--spacing-sm)}.checkmark-circle[data-astro-cid-wezysgif]{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center}.checkmark-circle[data-astro-cid-wezysgif].completed svg[data-astro-cid-wezysgif]{animation:checkmark-appear .3s cubic-bezier(.4,0,.2,1)}@keyframes checkmark-appear{0%{transform:scale(.8);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.checkmark-path[data-astro-cid-wezysgif]{stroke-dasharray:20;stroke-dashoffset:20;animation:checkmark-draw .4s .1s cubic-bezier(.4,0,.2,1) forwards}@keyframes checkmark-draw{to{stroke-dashoffset:0}}.checkmark-label[data-astro-cid-wezysgif]{font-size:.875rem;font-weight:500;color:var(--color-text-secondary)}.checkmark-label[data-astro-cid-wezysgif].completed{color:var(--accent-gold)}@media(prefers-reduced-motion:reduce){.checkmark-circle[data-astro-cid-wezysgif].completed svg[data-astro-cid-wezysgif]{animation:none}.checkmark-path[data-astro-cid-wezysgif]{animation:none;stroke-dashoffset:0}}.course-navigator[data-astro-cid-3ttwrphy]{display:flex;flex-direction:column;background:var(--bg-elevated);border-inline-end:1px solid var(--border-primary);inline-size:280px;block-size:100vh;overflow-y:auto;transition:transform .3s cubic-bezier(.4,0,.2,1)}.course-navigator[data-astro-cid-3ttwrphy]{position:fixed;inset-block-start:0;inset-inline-start:0;block-size:100vh;z-index:40;transform:translate(-100%);box-shadow:var(--shadow-xl)}[data-astro-cid-3ttwrphy][dir=rtl] .course-navigator[data-astro-cid-3ttwrphy]{inset-inline-start:auto;inset-inline-end:0;transform:translate(100%)}.course-navigator[data-astro-cid-3ttwrphy].open{transform:translate(0)}.navigator-header[data-astro-cid-3ttwrphy]{display:flex;align-items:center;justify-content:space-between;padding:1rem;border-block-end:1px solid var(--border-primary)}.navigator-title[data-astro-cid-3ttwrphy]{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0}.close-navigator[data-astro-cid-3ttwrphy]{display:flex;align-items:center;justify-content:center;inline-size:44px;block-size:44px;padding:0;border:none;border-radius:var(--radius-md);background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.close-navigator[data-astro-cid-3ttwrphy]:hover{background:var(--bg-secondary);color:var(--text-primary)}.close-navigator[data-astro-cid-3ttwrphy]:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.close-navigator[data-astro-cid-3ttwrphy] svg[data-astro-cid-3ttwrphy]{inline-size:20px;block-size:20px}.navigator-content[data-astro-cid-3ttwrphy]{flex:1;overflow-y:auto;padding:.5rem}.level-section[data-astro-cid-3ttwrphy]{margin-block-end:.5rem}.level-header[data-astro-cid-3ttwrphy]{display:flex;align-items:center;gap:.75rem;inline-size:100%;padding:.75rem;background:transparent;border:none;border-radius:var(--radius-lg);cursor:pointer;text-align:start;transition:background-color var(--transition-fast);min-block-size:44px}.level-header[data-astro-cid-3ttwrphy]:hover{background:var(--bg-secondary)}.level-header[data-astro-cid-3ttwrphy]:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.level-dot[data-astro-cid-3ttwrphy]{inline-size:8px;block-size:8px;border-radius:50%;flex-shrink:0}.level-info[data-astro-cid-3ttwrphy]{flex:1;display:flex;flex-direction:column;gap:.125rem}.level-name[data-astro-cid-3ttwrphy]{font-size:.875rem;font-weight:500;color:var(--text-primary)}.level-count[data-astro-cid-3ttwrphy]{font-size:.75rem;color:var(--text-tertiary)}.chevron[data-astro-cid-3ttwrphy]{inline-size:16px;block-size:16px;flex-shrink:0;color:var(--text-tertiary);transition:transform var(--transition-fast)}.level-header[data-astro-cid-3ttwrphy][aria-expanded=true] .chevron[data-astro-cid-3ttwrphy]{transform:rotate(90deg)}[data-astro-cid-3ttwrphy][dir=rtl] .level-header[data-astro-cid-3ttwrphy][aria-expanded=true] .chevron[data-astro-cid-3ttwrphy]{transform:rotate(-90deg)}.lesson-list[data-astro-cid-3ttwrphy]{list-style:none;padding:0;margin:0;padding-inline-start:1.5rem;margin-block-start:.25rem;display:flex;flex-direction:column;gap:.125rem}.lesson-list[data-astro-cid-3ttwrphy][hidden]{display:none}.lesson-list[data-astro-cid-3ttwrphy] li[data-astro-cid-3ttwrphy]{margin:0;padding:0}.lesson-item[data-astro-cid-3ttwrphy]{display:flex;align-items:center;gap:.75rem;padding:.625rem .75rem;border-radius:var(--radius-lg);font-size:.875rem;color:var(--text-secondary);text-decoration:none;transition:all var(--transition-fast);min-block-size:44px}.lesson-item[data-astro-cid-3ttwrphy]:hover{background:var(--bg-secondary);color:var(--text-primary)}.lesson-item[data-astro-cid-3ttwrphy]:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.lesson-item[data-astro-cid-3ttwrphy].active{background:var(--accent-primary);color:var(--text-inverse);font-weight:500}.lesson-number[data-astro-cid-3ttwrphy]{inline-size:24px;block-size:24px;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:600;background:var(--bg-secondary);color:var(--text-tertiary);border-radius:var(--radius-md);flex-shrink:0;transition:all var(--transition-fast)}.lesson-item[data-astro-cid-3ttwrphy]:hover .lesson-number[data-astro-cid-3ttwrphy]{background:var(--accent-primary-light);color:var(--accent-primary)}.lesson-item[data-astro-cid-3ttwrphy].active .lesson-number[data-astro-cid-3ttwrphy]{background:#fff3;color:var(--text-inverse)}.lesson-title[data-astro-cid-3ttwrphy]{flex:1;min-inline-size:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media(prefers-reduced-motion:reduce){.course-navigator[data-astro-cid-3ttwrphy],.level-header[data-astro-cid-3ttwrphy],.chevron[data-astro-cid-3ttwrphy],.lesson-item[data-astro-cid-3ttwrphy]{transition:none}}.navigator-toggle[data-astro-cid-ra2nfvxb]{display:flex;align-items:center;justify-content:center;inline-size:40px;block-size:40px;border:1px solid var(--border-primary);border-radius:var(--radius-lg);background:transparent;color:var(--text-secondary);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast)}.navigator-toggle[data-astro-cid-ra2nfvxb]:hover{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-secondary)}.navigator-toggle[data-astro-cid-ra2nfvxb]:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.navigator-toggle[data-astro-cid-ra2nfvxb] svg[data-astro-cid-ra2nfvxb]{inline-size:20px;block-size:20px}.close-icon[data-astro-cid-ra2nfvxb],.navigator-toggle[data-astro-cid-ra2nfvxb][aria-expanded=true] .menu-icon[data-astro-cid-ra2nfvxb]{display:none}.navigator-toggle[data-astro-cid-ra2nfvxb][aria-expanded=true] .close-icon[data-astro-cid-ra2nfvxb]{display:block}.navigator-toggle--header[data-astro-cid-ra2nfvxb]{display:flex}.navigator-toggle--header[data-astro-cid-ra2nfvxb] .toggle-label[data-astro-cid-ra2nfvxb]{display:none}.navigator-toggle--floating[data-astro-cid-ra2nfvxb]{position:fixed;inset-block-end:1.5rem;inset-inline-start:1.5rem;z-index:30;inline-size:auto;block-size:48px;padding-inline:1rem 1.125rem;gap:.5rem;border-radius:var(--radius-full);background:var(--accent-primary);color:var(--text-inverse);border:none;box-shadow:var(--shadow-lg)}.toggle-label[data-astro-cid-ra2nfvxb]{font-size:.875rem;font-weight:600}.navigator-toggle--floating[data-astro-cid-ra2nfvxb]:hover{background:var(--accent-primary);filter:brightness(1.1);color:var(--text-inverse)}.navigator-toggle--floating[data-astro-cid-ra2nfvxb]:focus-visible{outline:2px solid var(--text-inverse);outline-offset:2px}@media(prefers-reduced-motion:reduce){.navigator-toggle[data-astro-cid-ra2nfvxb]{transition:none}}.responsive-image[data-astro-cid-lifxq7xm]{max-inline-size:100%;block-size:auto;border-radius:var(--radius-lg);margin-block:var(--space-lg)}