:root{--color-primary: #2563eb;--color-accent: #f59e0b;--color-bg-light: #ffffff;--color-bg-dark: #0b1020;--font-body: system-ui, sans-serif;--font-headings: system-ui, sans-serif;--font-size-base: 16px;--radius: 8px;--color-bg: var(--color-bg-light);--color-text: #0b1020;--color-muted: #5b6478;--color-border: #e5e7eb;--color-surface: #f7f8fa;--sidebar-w: 280px;--topbar-h: 56px;--content-max-w: 760px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px}[data-theme=dark]{--color-bg: var(--color-bg-dark);--color-text: color-mix(in srgb, var(--color-bg-dark) 12%, #ffffff);--color-muted: color-mix(in srgb, var(--color-bg-dark) 45%, #ffffff);--color-surface: color-mix(in srgb, var(--color-bg-dark) 90%, #ffffff);--color-border: color-mix(in srgb, var(--color-bg-dark) 80%, #ffffff)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-body);font-size:var(--font-size-base);line-height:1.6}h1,h2,h3,h4,h5,h6{font-family:var(--font-headings);line-height:1.25;margin-top:1.5em;margin-bottom:.5em}a{color:var(--color-primary)}a:focus-visible,button:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:var(--radius)}.sidebar[data-astro-cid-k4cmclh2]{padding:var(--space-4) var(--space-3);height:100%;overflow-y:auto}.sidebar-title[data-astro-cid-k4cmclh2]{display:block;font-family:var(--font-headings);font-weight:700;font-size:1.15rem;color:var(--color-text);text-decoration:none;padding:var(--space-2) var(--space-3);margin-bottom:var(--space-3);line-height:1.3}.sidebar-title[data-astro-cid-k4cmclh2]:hover{color:var(--color-primary)}.sidebar-search[data-astro-cid-k4cmclh2]{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);margin-bottom:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-muted);text-decoration:none;font-size:.95rem;background:var(--color-surface);transition:border-color .15s ease,color .15s ease}.sidebar-search[data-astro-cid-k4cmclh2]:hover,.sidebar-search[data-astro-cid-k4cmclh2]:focus-visible{border-color:var(--color-primary);color:var(--color-text)}.sidebar-search-icon[data-astro-cid-k4cmclh2]{flex:0 0 16px}.sidebar-search-label[data-astro-cid-k4cmclh2]{flex:1}.modules[data-astro-cid-k4cmclh2],.lessons[data-astro-cid-k4cmclh2]{list-style:none;margin:0;padding:0}.module[data-astro-cid-k4cmclh2]{margin-bottom:var(--space-5)}.module-title[data-astro-cid-k4cmclh2]{font-family:var(--font-headings);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--color-muted);padding:var(--space-2) var(--space-3)}.lesson-link[data-astro-cid-k4cmclh2]{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-radius:var(--radius);color:var(--color-text);text-decoration:none;font-size:.95rem}.lesson-link[data-astro-cid-k4cmclh2]:hover{background:var(--color-surface)}.lesson-link[data-astro-cid-k4cmclh2].active{background:var(--color-primary);color:var(--color-bg)}.lesson-link[data-astro-cid-k4cmclh2].active .lesson-check[data-astro-cid-k4cmclh2]{color:var(--color-bg)}.lesson-link[data-astro-cid-k4cmclh2].draft .lesson-title[data-astro-cid-k4cmclh2]{color:var(--color-muted);font-style:italic}.lesson-check[data-astro-cid-k4cmclh2]{flex:0 0 1rem;width:1rem;display:inline-flex;align-items:center;justify-content:center;font-size:.85rem;color:var(--color-accent);font-weight:700}.lesson-title[data-astro-cid-k4cmclh2]{flex:1}.draft-badge[data-astro-cid-k4cmclh2]{font-size:.65rem;text-transform:uppercase;letter-spacing:.06em;background:var(--color-surface);color:var(--color-muted);padding:2px 6px;border-radius:999px;border:1px solid var(--color-border)}.empty[data-astro-cid-k4cmclh2]{padding:var(--space-2) var(--space-3);color:var(--color-muted);font-size:.85rem;font-style:italic}.theme-toggle[data-astro-cid-efubawbo]{appearance:none;background:transparent;border:1px solid var(--color-border);border-radius:var(--radius);padding:4px 10px;cursor:pointer;color:var(--color-text);font:inherit;display:inline-flex;align-items:center;gap:var(--space-2);line-height:1}.theme-toggle[data-astro-cid-efubawbo]:hover{background:var(--color-surface)}.theme-toggle-icon[data-astro-cid-efubawbo]{font-size:1rem}.variant-labeled[data-astro-cid-efubawbo]{padding:var(--space-2) var(--space-3)}.theme-toggle-label[data-astro-cid-efubawbo]{font-size:.875rem}.topbar[data-astro-cid-xopdeaaw]{height:var(--topbar-h);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:var(--space-3);padding:0 var(--space-4);border-bottom:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0;z-index:10}.hamburger[data-astro-cid-xopdeaaw]{display:none;justify-self:start;background:transparent;border:1px solid var(--color-border);border-radius:var(--radius);padding:4px 10px;font-size:1.1rem;cursor:pointer;color:var(--color-text)}.topbar-logo[data-astro-cid-xopdeaaw]{grid-column:2;justify-self:center;display:inline-flex;align-items:center;text-decoration:none}.topbar-logo[data-astro-cid-xopdeaaw] img[data-astro-cid-xopdeaaw]{height:28px;width:auto;display:block}.topbar-right[data-astro-cid-xopdeaaw]{grid-column:3;justify-self:end;display:flex;align-items:center;gap:var(--space-2)}.topbar-icon-link[data-astro-cid-xopdeaaw]{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);text-decoration:none;font-size:1rem}.topbar-icon-link[data-astro-cid-xopdeaaw]:hover{background:var(--color-surface)}@media (max-width: 768px){.hamburger[data-astro-cid-xopdeaaw]{display:inline-flex}.topbar-logo[data-astro-cid-xopdeaaw] img[data-astro-cid-xopdeaaw]{height:24px}}.progress[data-astro-cid-fquu4xnf]{height:3px;background:var(--color-surface);width:100%;overflow:hidden}.bar[data-astro-cid-fquu4xnf]{height:100%;background:var(--color-accent);transition:width .24s ease}.shell[data-astro-cid-37fxchfa]{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh}.sidebar-slot[data-astro-cid-37fxchfa]{border-right:1px solid var(--color-border);background:var(--color-bg);position:sticky;top:0;height:100vh}.main[data-astro-cid-37fxchfa]{min-width:0}.content[data-astro-cid-37fxchfa]{padding:var(--space-6) var(--space-5);max-width:var(--content-max-w);margin:0 auto}.sidebar-backdrop[data-astro-cid-37fxchfa]{display:none}@media (max-width: 768px){.shell[data-astro-cid-37fxchfa]{grid-template-columns:1fr}.sidebar-slot[data-astro-cid-37fxchfa]{position:fixed;top:0;left:0;width:min(var(--sidebar-w),86vw);height:100vh;transform:translate(-100%);transition:transform .22s ease;z-index:30;box-shadow:0 0 0 transparent}.sidebar-slot[data-astro-cid-37fxchfa].is-open{transform:translate(0);box-shadow:4px 0 24px #0000001f}.sidebar-backdrop[data-astro-cid-37fxchfa]{display:block;position:fixed;inset:0;background:#0006;z-index:20}.content[data-astro-cid-37fxchfa]{padding:var(--space-5) var(--space-4)}}