.page-content[data-astro-cid-i5cmaerd]{max-width:800px;margin:0 auto;padding:1rem 1.5rem 5rem}.breadcrumb[data-astro-cid-i5cmaerd]{font-size:.9rem;color:var(--text-muted);margin-bottom:2rem}.breadcrumb[data-astro-cid-i5cmaerd] a[data-astro-cid-i5cmaerd]{color:var(--text-muted);text-decoration:none}.breadcrumb[data-astro-cid-i5cmaerd] a[data-astro-cid-i5cmaerd]:hover{color:var(--text)}.breadcrumb[data-astro-cid-i5cmaerd] span[data-astro-cid-i5cmaerd]{margin:0 .5rem}.page-hero[data-astro-cid-i5cmaerd]{margin-bottom:2.5rem}.page-hero[data-astro-cid-i5cmaerd] h1[data-astro-cid-i5cmaerd]{font-family:var(--font-display);font-size:2.5rem;font-weight:400;letter-spacing:-.02em;margin:0 0 .5rem}.hero-subtitle[data-astro-cid-i5cmaerd]{font-size:1.125rem;color:var(--text-muted);margin:0}.levels-nav[data-astro-cid-i5cmaerd]{display:flex;flex-direction:column;gap:.5rem}.level-accordion[data-astro-cid-i5cmaerd]{border:1px solid var(--border);border-radius:8px;overflow:hidden}.level-accordion[data-astro-cid-i5cmaerd].available,.level-accordion[data-astro-cid-i5cmaerd].critical{border-color:var(--accent)}.level-header[data-astro-cid-i5cmaerd]{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;cursor:pointer;background:var(--bg-elevated);transition:background .15s ease;list-style:none}.level-header[data-astro-cid-i5cmaerd]::-webkit-details-marker{display:none}.level-header[data-astro-cid-i5cmaerd]:hover{background:var(--bg-secondary)}.level-accordion[data-astro-cid-i5cmaerd][open] .level-header[data-astro-cid-i5cmaerd]{border-bottom:1px solid var(--border-subtle)}.level-number[data-astro-cid-i5cmaerd]{font-family:var(--font-display);font-size:1.5rem;font-weight:400;opacity:.3;width:2rem;text-align:center;flex-shrink:0}.level-info[data-astro-cid-i5cmaerd]{flex-grow:1}.level-name[data-astro-cid-i5cmaerd]{display:block;font-weight:600;font-size:1rem;text-transform:uppercase;letter-spacing:.04em}.level-shift[data-astro-cid-i5cmaerd]{display:block;font-size:.875rem;color:var(--text-muted);margin-top:.125rem}.coming-badge[data-astro-cid-i5cmaerd]{font-size:.625rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em;background:var(--bg-secondary);color:var(--text-muted);padding:.25rem .625rem;border-radius:3px;flex-shrink:0}.critical-badge[data-astro-cid-i5cmaerd]{font-size:.625rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;background:var(--accent);color:var(--bg);padding:.25rem .625rem;border-radius:3px;flex-shrink:0}.toggle-icon[data-astro-cid-i5cmaerd]{width:1.25rem;height:1.25rem;position:relative;flex-shrink:0}.toggle-icon[data-astro-cid-i5cmaerd]:before,.toggle-icon[data-astro-cid-i5cmaerd]:after{content:"";position:absolute;background:var(--text-muted);transition:transform .2s ease}.toggle-icon[data-astro-cid-i5cmaerd]:before{width:12px;height:2px;top:50%;left:50%;transform:translate(-50%,-50%)}.toggle-icon[data-astro-cid-i5cmaerd]:after{width:2px;height:12px;top:50%;left:50%;transform:translate(-50%,-50%)}details[data-astro-cid-i5cmaerd][open]>summary[data-astro-cid-i5cmaerd] .toggle-icon[data-astro-cid-i5cmaerd]:after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}.level-content[data-astro-cid-i5cmaerd]{padding:.5rem}.level-content[data-astro-cid-i5cmaerd].coming-soon{padding:1.5rem}.level-content[data-astro-cid-i5cmaerd].coming-soon p[data-astro-cid-i5cmaerd]{margin:0;color:var(--text-muted);font-size:.9375rem;text-align:center}.unit-accordion[data-astro-cid-i5cmaerd]{border-radius:6px;overflow:hidden;margin-bottom:.25rem}.unit-accordion[data-astro-cid-i5cmaerd]:last-child{margin-bottom:0}.unit-header[data-astro-cid-i5cmaerd]{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;cursor:pointer;background:var(--bg);transition:background .15s ease;list-style:none;border-radius:6px}.unit-header[data-astro-cid-i5cmaerd]::-webkit-details-marker{display:none}.unit-header[data-astro-cid-i5cmaerd]:hover{background:var(--bg-secondary)}.unit-accordion[data-astro-cid-i5cmaerd][open] .unit-header[data-astro-cid-i5cmaerd]{border-radius:6px 6px 0 0;background:var(--bg-secondary)}.unit-number[data-astro-cid-i5cmaerd]{font-size:.75rem;font-weight:600;color:var(--text-muted);white-space:nowrap;flex-shrink:0}.unit-name[data-astro-cid-i5cmaerd]{flex-grow:1;font-weight:500;font-size:.9375rem}.unit-lessons[data-astro-cid-i5cmaerd]{font-size:.75rem;color:var(--text-subtle);flex-shrink:0}.unit-header[data-astro-cid-i5cmaerd] .toggle-icon[data-astro-cid-i5cmaerd]{width:1rem;height:1rem}.unit-header[data-astro-cid-i5cmaerd] .toggle-icon[data-astro-cid-i5cmaerd]:before{width:8px}.unit-header[data-astro-cid-i5cmaerd] .toggle-icon[data-astro-cid-i5cmaerd]:after{height:8px}.unit-content[data-astro-cid-i5cmaerd]{background:var(--bg-secondary);padding:.5rem 1rem .75rem;border-radius:0 0 6px 6px}.lesson-link[data-astro-cid-i5cmaerd]{display:flex;align-items:baseline;gap:.75rem;padding:.5rem;text-decoration:none;color:var(--text);border-radius:4px;transition:background .15s ease}.lesson-link[data-astro-cid-i5cmaerd]:hover{background:var(--bg)}.lesson-num[data-astro-cid-i5cmaerd]{font-size:.75rem;font-weight:600;color:var(--text-muted);width:1.75rem;flex-shrink:0}.lesson-title[data-astro-cid-i5cmaerd]{font-size:.9375rem;line-height:1.4}.bottom-cta[data-astro-cid-i5cmaerd]{margin-top:3rem;padding:1.5rem;background:var(--bg-secondary);border-radius:8px;text-align:center}.bottom-cta[data-astro-cid-i5cmaerd] p[data-astro-cid-i5cmaerd]{margin:0;color:var(--text-muted);font-size:.9375rem}.bottom-cta[data-astro-cid-i5cmaerd] a[data-astro-cid-i5cmaerd]{color:var(--text);font-weight:500;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:3px}.bottom-cta[data-astro-cid-i5cmaerd] a[data-astro-cid-i5cmaerd]:hover{color:var(--accent)}@media (max-width: 600px){.page-content[data-astro-cid-i5cmaerd]{padding:1rem 1rem 4rem}.page-hero[data-astro-cid-i5cmaerd] h1[data-astro-cid-i5cmaerd]{font-size:2rem}.level-header[data-astro-cid-i5cmaerd]{padding:.875rem 1rem;gap:.75rem}.level-number[data-astro-cid-i5cmaerd]{font-size:1.25rem;width:1.5rem}.level-name[data-astro-cid-i5cmaerd]{font-size:.9375rem}.level-shift[data-astro-cid-i5cmaerd]{font-size:.8125rem}}