.navbar[data-astro-cid-l7arcky5]{height:var(--navbar-height);border-bottom:1px solid var(--color-border);background-color:var(--color-bg);z-index:100;align-items:center;gap:1rem;padding:0 1.5rem;display:flex;position:sticky;top:0}.mobile-menu-btn[data-astro-cid-l7arcky5]{cursor:pointer;color:var(--color-text);background:0 0;border:none;padding:.5rem;display:none}.logo[data-astro-cid-l7arcky5]{color:var(--color-text);font-size:1.25rem;font-weight:700;text-decoration:none}.logo[data-astro-cid-l7arcky5]:hover{color:var(--color-primary);text-decoration:none}.spacer[data-astro-cid-l7arcky5]{flex:1}.search-container[data-astro-cid-l7arcky5]{position:relative}.search-btn[data-astro-cid-l7arcky5]{background:var(--color-bg-secondary);border:1px solid var(--color-border);color:var(--color-text-muted);cursor:pointer;border-radius:6px;align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.9rem;display:flex}.search-btn[data-astro-cid-l7arcky5]:hover{border-color:var(--color-primary)}.search-label[data-astro-cid-l7arcky5]{display:none}@media (width>=600px){.search-label[data-astro-cid-l7arcky5]{display:inline}}.search-popup[data-astro-cid-l7arcky5]{z-index:1000;background:#00000080;padding:2rem;display:none;position:fixed;inset:0;overflow-y:auto}.search-popup[data-astro-cid-l7arcky5].open{justify-content:center;align-items:flex-start;display:flex}.search-popup[data-astro-cid-l7arcky5] .pagefind-ui{background:var(--color-bg);border-radius:8px;width:100%;max-width:600px;margin-top:4rem;padding:1rem}.nav-actions[data-astro-cid-l7arcky5]{align-items:center;gap:.5rem;display:flex}.lang-switch[data-astro-cid-l7arcky5]{justify-content:center;min-width:40px;font-weight:600}.chat-btn[data-astro-cid-l7arcky5]{color:var(--color-primary);border:1px solid var(--color-primary);border-radius:6px;align-items:center;gap:.3rem;padding:.4rem .65rem;font-weight:600;transition:background .15s,color .15s;display:inline-flex}.chat-btn[data-astro-cid-l7arcky5]:hover{background:var(--color-primary);color:#fff;text-decoration:none}.chat-btn-label[data-astro-cid-l7arcky5]{font-size:.85rem}.theme-toggle[data-astro-cid-l7arcky5]{padding:.5rem}.sun-icon[data-astro-cid-l7arcky5]{display:block}.moon-icon[data-astro-cid-l7arcky5],[data-astro-cid-l7arcky5][data-theme=dark] .sun-icon[data-astro-cid-l7arcky5]{display:none}[data-astro-cid-l7arcky5][data-theme=dark] .moon-icon[data-astro-cid-l7arcky5]{display:block}@media (width<=768px){.mobile-menu-btn[data-astro-cid-l7arcky5]{display:block}.search-btn[data-astro-cid-l7arcky5]{padding:.5rem}.search-label[data-astro-cid-l7arcky5]{display:none!important}.logo[data-astro-cid-l7arcky5]{font-size:1.1rem}}.sidebar[data-astro-cid-wv7whodv]{width:var(--sidebar-width);height:calc(100vh - var(--navbar-height));top:var(--navbar-height);border-right:1px solid var(--color-border);background-color:var(--color-bg);flex-shrink:0;position:sticky;overflow-y:auto}.sidebar-nav[data-astro-cid-wv7whodv]{padding:1rem}.sidebar-filter-wrap[data-astro-cid-wv7whodv]{margin-bottom:.75rem}.sidebar-filter-label[data-astro-cid-wv7whodv]{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.sidebar-filter[data-astro-cid-wv7whodv]{border:1px solid var(--color-border);background-color:var(--color-bg-secondary);width:100%;color:var(--color-text);border-radius:6px;padding:.5rem .65rem;font-size:.85rem}.sidebar-filter[data-astro-cid-wv7whodv]:focus{outline:1px solid var(--color-primary);border-color:var(--color-primary)}.sidebar-category[data-astro-cid-wv7whodv]{margin-bottom:.5rem}.sidebar-toggle[data-astro-cid-wv7whodv]{cursor:pointer;text-align:left;width:100%;color:var(--color-text);background:0 0;border:none;border-radius:4px;justify-content:space-between;align-items:center;padding:.5rem;font-size:.95rem;display:flex}.sidebar-toggle[data-astro-cid-wv7whodv]:hover{background-color:var(--color-bg-secondary)}.category-toggle[data-astro-cid-wv7whodv]{font-size:1rem;font-weight:600}.category-title[data-astro-cid-wv7whodv]{align-items:center;gap:.5rem;display:inline-flex}.category-emoji[data-astro-cid-wv7whodv]{font-size:1.05rem;line-height:1}.subcategory-toggle[data-astro-cid-wv7whodv]{padding-left:.75rem;font-size:.9rem;font-weight:500}.toggle-icon[data-astro-cid-wv7whodv]{color:var(--color-text-muted);font-size:1.2rem;transition:transform .2s}.sidebar-content[data-astro-cid-wv7whodv]{border-left:1px solid var(--color-border);margin-left:.5rem;padding-left:.5rem;display:none}.sidebar-content[data-astro-cid-wv7whodv].open{display:block}.sidebar-link[data-astro-cid-wv7whodv]{color:var(--color-text);border-radius:4px;padding:.4rem .75rem;font-size:.85rem;text-decoration:none;display:block}.sidebar-link[data-astro-cid-wv7whodv]:hover{background-color:var(--color-bg-secondary);text-decoration:none}.sidebar-link[data-astro-cid-wv7whodv][aria-current=page]{background-color:var(--color-primary);color:#fff}@media (width<=768px){.sidebar[data-astro-cid-wv7whodv]{left:-100%;top:var(--navbar-height);z-index:50;width:85vw;max-width:320px;transition:left .3s;position:fixed;box-shadow:2px 0 10px #0000001a}.sidebar[data-astro-cid-wv7whodv].open{left:0}}.footer[data-astro-cid-jo6i4kqk]{border-top:1px solid var(--color-border);text-align:center;margin-top:4rem;padding:2rem}.footer-content[data-astro-cid-jo6i4kqk]{color:var(--color-text-muted);flex-wrap:wrap;justify-content:center;align-items:center;gap:.5rem;font-size:.85rem;display:flex}.footer[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{color:var(--color-text-muted)}.footer[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]:hover{color:var(--color-primary)}.separator[data-astro-cid-jo6i4kqk]{color:var(--color-text-muted)}.fab-container[data-astro-cid-ewk2puuw]{z-index:30;pointer-events:none;flex-direction:column-reverse;align-items:flex-end;gap:1rem;display:flex;position:fixed;bottom:2rem;right:2rem}.fab-main[data-astro-cid-ewk2puuw]{background-color:var(--color-primary);color:#fff;cursor:pointer;pointer-events:auto;border:none;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;transition:transform .2s,background-color .2s;display:flex;box-shadow:0 4px 12px #0003}.fab-main[data-astro-cid-ewk2puuw]:hover{background-color:var(--color-primary-hover);transform:scale(1.05)}.fab-icon[data-astro-cid-ewk2puuw]{transition:transform .3s}.fab-container[data-astro-cid-ewk2puuw].open .fab-icon[data-astro-cid-ewk2puuw]{transform:rotate(45deg)}.fab-menu[data-astro-cid-ewk2puuw]{opacity:0;visibility:hidden;pointer-events:none;flex-direction:column;gap:.75rem;transition:all .3s cubic-bezier(.175,.885,.32,1.275);display:flex;transform:translateY(20px)}.fab-container[data-astro-cid-ewk2puuw].open .fab-menu[data-astro-cid-ewk2puuw]{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.fab-item[data-astro-cid-ewk2puuw]{pointer-events:auto;background-color:var(--color-bg);color:var(--color-text);border:1px solid var(--color-border);white-space:nowrap;border-radius:8px;align-items:center;gap:.75rem;padding:.75rem 1.25rem;font-size:.9rem;font-weight:500;text-decoration:none;transition:background-color .2s,transform .2s;display:flex;box-shadow:0 4px 12px #0000001a}.fab-item[data-astro-cid-ewk2puuw]:hover{background-color:var(--color-bg-secondary);text-decoration:none;transform:translate(-5px)}[data-astro-cid-ewk2puuw][data-theme=dark] .fab-item[data-astro-cid-ewk2puuw]{box-shadow:0 4px 12px #0000004d}@media (width<=768px){.fab-container[data-astro-cid-ewk2puuw]{right:1rem;bottom:calc(1rem + env(safe-area-inset-bottom) + 3.5rem);gap:.75rem}.fab-main[data-astro-cid-ewk2puuw]{width:52px;height:52px}.fab-item[data-astro-cid-ewk2puuw]{white-space:normal;max-width:min(320px,100vw - 2rem)}}:root{--color-bg:#fff;--color-bg-secondary:#f8fafc;--color-text:#1e293b;--color-text-muted:#64748b;--color-border:#e2e8f0;--color-primary:#3b82f6;--color-primary-hover:#2563eb;--sidebar-width:280px;--navbar-height:60px}[data-theme=dark]{--color-bg:#0f172a;--color-bg-secondary:#1e293b;--color-text:#f1f5f9;--color-text-muted:#94a3b8;--color-border:#334155;--color-primary:#60a5fa;--color-primary-hover:#93c5fd}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--color-bg);color:var(--color-text);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;line-height:1.6;overflow-x:hidden}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover);text-decoration:underline}h1,h2,h3,h4,h5,h6{scroll-margin-top:calc(var(--navbar-height) + 1rem);margin-top:1.5em;margin-bottom:.5em;font-weight:600;line-height:1.3}h1{margin-top:0;font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1.1rem}p{margin-bottom:1em}table{border-collapse:collapse;width:100%;margin:1.5em 0;font-size:.95em}.content-body table{width:max-content;min-width:100%}.table-scroll{-webkit-overflow-scrolling:touch;width:100%;margin:1.5em 0;overflow-x:auto}.table-scroll>table{margin:0}th,td{border:1px solid var(--color-border);text-align:left;padding:.75em}th{background-color:var(--color-bg-secondary);font-weight:600}tr:nth-child(2n){background-color:var(--color-bg-secondary)}pre{background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:6px;margin:1em 0;padding:1em;overflow-x:auto}code{font-family:Fira Code,Consolas,monospace;font-size:.9em}:not(pre)>code{background-color:var(--color-bg-secondary);border-radius:4px;padding:.2em .4em}ul,ol{margin:1em 0;padding-left:2em}li{margin-bottom:.5em}blockquote{border-left:4px solid var(--color-primary);background-color:var(--color-bg-secondary);border-radius:0 6px 6px 0;margin:1.5em 0;padding:.5em 1em}img{border-radius:6px;max-width:100%;height:auto}.content-body img{object-fit:contain;cursor:zoom-in;border-radius:8px;max-height:70vh;margin:2rem auto;transition:transform .2s;display:block;box-shadow:0 4px 12px #0000001a}.content-body img:hover{transform:scale(1.02)}[data-theme=dark] .content-body img{background-color:#f8fafc;padding:1rem;box-shadow:0 4px 12px #0000004d}.image-modal{z-index:9999;backdrop-filter:blur(4px);cursor:zoom-out;opacity:0;background-color:#000000d9;justify-content:center;align-items:center;width:100%;height:100%;transition:opacity .2s;display:none;position:fixed;top:0;left:0}.image-modal.active{opacity:1;display:flex}.image-modal img{object-fit:contain;border-radius:8px;max-width:90vw;max-height:90vh;transition:transform .2s;transform:scale(.95);box-shadow:0 8px 32px #00000080}.image-modal.active img{transform:scale(1)}[data-theme=dark] .image-modal img{background-color:#f8fafc;padding:1rem}.btn{border:1px solid var(--color-border);background-color:var(--color-bg);color:var(--color-text);cursor:pointer;border-radius:6px;align-items:center;gap:.5em;padding:.5em 1em;font-size:.9em;transition:all .2s;display:inline-flex}.btn:hover{background-color:var(--color-bg-secondary);text-decoration:none}.btn-primary{background-color:var(--color-primary);border-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover)}.card{background-color:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;padding:1.5em}.progress-bar{background-color:var(--color-bg-secondary);border-radius:4px;width:100%;height:8px;overflow:hidden}.progress-bar-fill{background-color:var(--color-primary);height:100%;transition:width .3s}.text-muted{color:var(--color-text-muted)}.text-small{font-size:.9em}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.w-full{width:100%}.math-block{padding:1em 0;overflow-x:auto}.callout{border-radius:6px;align-items:flex-start;gap:.75em;margin:1em 0;padding:1em;display:flex}.callout-info{background-color:#dbeafe;border-left:4px solid #3b82f6}.callout-warning{background-color:#fef3c7;border-left:4px solid #f59e0b}[data-theme=dark] .callout-info{background-color:#1e3a5f}[data-theme=dark] .callout-warning{background-color:#422006}.pagefind-ui{--pagefind-ui-scale:.9;--pagefind-ui-primary:var(--color-primary);--pagefind-ui-text:var(--color-text);--pagefind-ui-background:var(--color-bg);--pagefind-ui-border:var(--color-border);--pagefind-ui-border-width:1px;--pagefind-ui-border-radius:6px}@media (width<=768px){.content-body{overflow-wrap:anywhere}}.layout[data-astro-cid-z4jru4n3]{width:100%;min-height:calc(100vh - var(--navbar-height));display:flex}.content-area[data-astro-cid-z4jru4n3]{flex:1;justify-content:center;min-width:0;display:flex}.main-content[data-astro-cid-z4jru4n3]{width:100%;max-width:900px;padding:2rem}.sidebar-overlay[data-astro-cid-z4jru4n3]{z-index:40;background:#00000080;display:none;position:fixed;inset:0}.sidebar-overlay[data-astro-cid-z4jru4n3].open{display:block}@media (width<=768px){.main-content[data-astro-cid-z4jru4n3]{padding:1rem}}