.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] 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.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:all 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--floating[data-astro-cid-ra2nfvxb]{position:fixed;inset-block-end:1.5rem;inset-inline-start:1.5rem;z-index:30;inline-size:48px;block-size:48px;border-radius:var(--radius-full);background:var(--accent-primary);color:var(--text-inverse);border:none;box-shadow:var(--shadow-lg)}.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 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var(--transition-fast);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-inline-size:20ch}.breadcrumb-link[data-astro-cid-e7fz7wfw]:hover{color:var(--accent-primary);text-decoration:underline}.breadcrumb-link[data-astro-cid-e7fz7wfw]:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px;border-radius:var(--radius-sm)}.breadcrumb-current[data-astro-cid-e7fz7wfw]{color:var(--text-primary);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-inline-size:30ch}.separator[data-astro-cid-e7fz7wfw]{color:var(--text-tertiary);font-size:.75rem;display:inline-block;user-select:none}.separator[data-astro-cid-e7fz7wfw]:before{content:"/"}[data-astro-cid-e7fz7wfw][dir=rtl] 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h2{font-family:var(--font-display);font-size:1.625rem;font-weight:700;color:var(--text-primary);margin-top:2.5rem;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:2px solid var(--accent-gold);letter-spacing:-.01em}.lesson-content[data-astro-cid-jkfvkvs4] h3{font-family:var(--font-display);font-size:1.3125rem;font-weight:600;color:var(--text-primary);margin-top:2rem;margin-bottom:.75rem;letter-spacing:-.01em}.lesson-content[data-astro-cid-jkfvkvs4] p{color:var(--text-secondary);margin-bottom:1rem}.lesson-content[data-astro-cid-jkfvkvs4] a{color:var(--link-color);text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--link-color) 40%,transparent);text-underline-offset:2px}.lesson-content[data-astro-cid-jkfvkvs4] a:hover{text-decoration-color:var(--link-color)}.lesson-content[data-astro-cid-jkfvkvs4] strong{color:var(--text-primary);font-weight:600}.lesson-content[data-astro-cid-jkfvkvs4] ul,.lesson-content[data-astro-cid-jkfvkvs4] ol{margin-bottom:1rem;padding-left:1.5rem}.lesson-content[data-astro-cid-jkfvkvs4] li{color:var(--text-secondary);margin-bottom:.5rem}.lesson-content[data-astro-cid-jkfvkvs4] table{width:100%;border-collapse:collapse;margin:1.5rem 0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-primary)}.lesson-content[data-astro-cid-jkfvkvs4] th{background:var(--accent-primary-light);color:var(--accent-primary);font-weight:600;text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--border-primary)}.lesson-content[data-astro-cid-jkfvkvs4] td{padding:.75rem 1rem;border-bottom:1px solid var(--border-primary);background:var(--bg-elevated)}.lesson-content[data-astro-cid-jkfvkvs4] tr:last-child td{border-bottom:none}.lesson-content[data-astro-cid-jkfvkvs4] code{background:var(--bg-secondary);padding:.125rem .375rem;border-radius:var(--radius-sm);font-size:.875em;color:var(--accent-primary)}.lesson-content[data-astro-cid-jkfvkvs4] pre{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:1rem;overflow-x:auto;margin:1.5rem 0}.lesson-content[data-astro-cid-jkfvkvs4] pre code{background:transparent;padding:0}.lesson-content[data-astro-cid-jkfvkvs4] blockquote{border-left:3px solid var(--accent-gold);padding-left:1rem;margin:1.5rem 0;color:var(--text-secondary);font-style:italic}.lesson-nav[data-astro-cid-jkfvkvs4]{display:flex;align-items:center;justify-content:space-between;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border-primary)}.nav-link[data-astro-cid-jkfvkvs4]{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-display);font-size:.9375rem;font-weight:600;color:var(--accent-gold);text-decoration:none;transition:all var(--transition-fast)}.nav-link[data-astro-cid-jkfvkvs4]:hover{opacity:.8}.nav-link[data-astro-cid-jkfvkvs4] svg[data-astro-cid-jkfvkvs4]{width:18px;height:18px;transition:transform var(--transition-fast)}.nav-link[data-astro-cid-jkfvkvs4].prev:hover svg[data-astro-cid-jkfvkvs4]{transform:translate(-2px)}.nav-link[data-astro-cid-jkfvkvs4].next:hover svg[data-astro-cid-jkfvkvs4]{transform:translate(2px)}.complete-section[data-astro-cid-jkfvkvs4]{display:flex;align-items:center;justify-content:center;margin-top:2rem;padding:1.5rem;background:var(--bg-secondary);border-radius:var(--radius-lg)}.complete-btn[data-astro-cid-jkfvkvs4]{display:inline-flex;align-items:center;gap:.5rem;padding:.875rem 2rem;background:var(--gradient-gold, linear-gradient(90deg, #B8860B 0%, #D4A849 50%, #F2D98C 100%));color:#1a1147;font-family:var(--font-display);font-size:.9375rem;font-weight:700;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);box-shadow:0 4px 12px #b8860b33;letter-spacing:.02em}.complete-btn[data-astro-cid-jkfvkvs4]:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 6px 20px #b8860b4d}.complete-btn[data-astro-cid-jkfvkvs4]:disabled{opacity:.7;cursor:not-allowed}.complete-btn[data-astro-cid-jkfvkvs4] svg[data-astro-cid-jkfvkvs4]{width:18px;height:18px}.complete-btn[data-astro-cid-jkfvkvs4].completed{background:#059669}.complete-status[data-astro-cid-jkfvkvs4]{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:#ecfdf5;color:#065f46;font-size:.9375rem;font-weight:600;border-radius:var(--radius-md)}[data-theme=dark] .complete-status[data-astro-cid-jkfvkvs4]{background:#052e16;color:#6ee7b7}.complete-status[data-astro-cid-jkfvkvs4] svg[data-astro-cid-jkfvkvs4]{width:18px;height:18px}.responsive-image[data-astro-cid-lifxq7xm]{max-inline-size:100%;block-size:auto;border-radius:var(--radius-lg);margin-block:var(--space-lg)}