@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/2c55a0e60120577a-s.0bjc5tiuqdqro.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/9c72aa0f40e4eef8-s.0m6w47a4e5dy9.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/ad66f9afd8947f86-s.11u06r12fd6v_.woff2)format("woff2");unicode-range:U+1F??}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/5476f68d60460930-s.0wxq9webf.ew4.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/2bbe8d2671613f1f-s.067x_6k0k23tk.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/1bffadaabf893a1e-s.16ipb6fqu393i.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(../media/83afe278b6a6bb3c-s.p.0q-301v4kxxnr.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Inter Fallback;src:local(Arial);ascent-override:90.44%;descent-override:22.52%;line-gap-override:0.0%;size-adjust:107.12%}.inter_5972bc34-module__OU16Qa__className{font-family:Inter,Inter Fallback;font-style:normal}
:root{--bg-primary:#121212;--bg-secondary:#1e1e1e;--bg-tertiary:#1e1e2e;--bg-hover:#252535;--bg-active:#2a2a3e;--border-subtle:#333348;--border-default:#333;--border-hover:#555;--accent-primary:#3b82f6;--bg-accent-transparent:#3b82f61a;--bg-accent-transparent-hover:#3b82f626;--bg-accent-transparent-active:#3b82f64d;--text-primary:#e0e0e0;--text-strong:#fff;--text-secondary:#a0a0a0;--text-muted:#888;--text-faint:#666;--text-accent:#c0c0ff;--text-accent-light:#93c5fd;--overlay-bg:#0009;--shadow-color:#00000080;--shadow-color-light:#0000004d;--background:var(--bg-primary);--foreground:var(--text-primary);--color-green-border:#2ecc71;--color-green-bg:#2ecc711a;--color-green-text:#4ade80;--color-blue-border:#3498db;--color-blue-bg:#3498db1a;--color-blue-text:#60a5fa;--color-yellow-border:#f1c40f;--color-yellow-bg:#f1c40f1a;--color-yellow-text:#facc15;--radius:8px}body{color:var(--foreground);background:var(--background);margin:0;padding:0;font-family:Arial,Helvetica,sans-serif;line-height:1.6}*{box-sizing:border-box}a{color:var(--color-blue-text);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:900px;margin:0 auto;padding:2rem}.content-block{border-radius:var(--radius);border-left:4px solid;margin:2rem 0;padding:1.5rem}.content-block-header{margin-bottom:.5rem;font-size:1.1rem;font-weight:700}.definition{background-color:var(--color-green-bg);border-left-color:var(--color-green-border)}.definition .content-block-header{color:var(--color-green-text)}.theorem{background-color:var(--color-blue-bg);border-left-color:var(--color-blue-border)}.theorem .content-block-header{color:var(--color-blue-text)}.example{background-color:var(--color-yellow-bg);border-left-color:var(--color-yellow-border)}.example .content-block-header{color:var(--color-yellow-text)}h1,h2,h3,h4{margin-top:2rem;margin-bottom:1rem;line-height:1.2}h1{border-bottom:1px solid var(--border-default);padding-bottom:.5rem;font-size:2.5rem}h2{font-size:1.75rem}h3{font-size:1.25rem}ul,ol{margin-bottom:1rem;padding-left:1.5rem}p{margin-bottom:1rem}.sidebar{background-color:var(--bg-secondary);border-right:1px solid var(--border-default);z-index:100;width:260px;height:100vh;padding:.75rem;transition:width .3s cubic-bezier(.4,0,.2,1);position:fixed;top:0;left:0;overflow:hidden auto}.sidebar-collapsed{border-right:none;width:0;padding:0;overflow:hidden}.sidebar-header{justify-content:space-between;align-items:center;min-height:2rem;margin-bottom:.5rem;padding:.25rem 0;display:flex}.sidebar-title{white-space:nowrap;color:var(--text-primary);margin:0;font-size:1rem}.sidebar-toggle{border:1px solid var(--border-default);width:28px;height:28px;color:var(--text-muted);cursor:pointer;background:0 0;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:flex}.sidebar-toggle:hover{background:var(--border-default);color:var(--text-strong);border-color:var(--border-hover)}.sidebar-open-btn{z-index:101;background:var(--bg-tertiary);border:1px solid var(--border-default);width:36px;height:36px;color:var(--text-secondary);cursor:pointer;box-shadow:0 2px 8px var(--shadow-color-light);border-radius:8px;justify-content:center;align-items:center;transition:all .2s;display:flex;position:fixed;top:.75rem;left:.75rem}.sidebar-open-btn:hover{background:var(--bg-active);color:var(--text-strong);border-color:var(--accent-primary)}.main-content{min-height:100vh;margin-left:260px;padding:2rem;transition:margin-left .3s cubic-bezier(.4,0,.2,1)}body:has(.sidebar-collapsed) .main-content{margin-left:0}.sidebar-nav{margin:0;padding:0;list-style:none}.sidebar-nav>li{margin-bottom:.1rem}.sidebar-nav a{color:var(--text-secondary);border-radius:var(--radius);padding:.3rem .5rem;font-size:.85rem;line-height:1.3;transition:background-color .2s,color .2s;display:block}.sidebar-nav a:hover,.sidebar-nav a.active{background-color:var(--border-default);color:var(--text-strong);text-decoration:none}.sidebar-chapter-active>a{border-left:3px solid var(--accent-primary);padding-left:calc(.5rem - 3px);color:var(--text-accent-light)!important;background-color:var(--bg-accent-transparent)!important}.sidebar-subchapters{opacity:0;max-height:0;margin:0;padding:0;list-style:none;transition:max-height .35s cubic-bezier(.4,0,.2,1),opacity .25s,margin-top .25s;overflow:hidden}.sidebar-subchapters[data-open=true]{max-height:calc(var(--sub-count,6) * 1.8rem);opacity:1;margin-top:.25rem;padding-left:.75rem}.sidebar-subchapters li{margin-bottom:0}.sidebar-subchapters a{color:var(--text-muted);padding:.2rem .5rem;font-size:.8rem;line-height:1.3}.sidebar-subchapters a:hover{color:var(--text-accent);background-color:var(--bg-active)}.sidebar-subchapters a.active{color:var(--text-accent);background-color:var(--bg-active);font-weight:500}.chapter-index-list{padding-left:0;font-size:1.05rem;line-height:1.9;list-style:none}.chapter-index-list li{border-left:2px solid #0000;padding-left:1rem;transition:border-color .2s,padding-left .2s}.chapter-index-list li:hover{border-left-color:var(--accent-primary);padding-left:1.25rem}.chapter-index-cta{background:var(--color-green-bg);border:1px solid var(--color-green-border);border-radius:var(--radius);margin-top:2.5rem;padding:.85rem 1.25rem;font-weight:600;transition:background .2s,transform .2s,box-shadow .2s;display:inline-block;color:var(--color-green-text)!important;text-decoration:none!important}.chapter-index-cta:hover{background:var(--color-green-border);transform:translateY(-1px);box-shadow:0 6px 18px #2ecc7140;color:#0b1d12!important}.theme-toggle{border:1px solid var(--border-default);width:28px;height:28px;color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;transition:background-color .15s,color .15s,border-color .15s;display:flex}.theme-toggle:hover{background:var(--border-default);color:var(--text-strong)}.sidebar-header-actions{gap:.5rem;display:flex}.ptes-phases{flex-direction:column;gap:1rem;margin-top:1rem;display:flex}.ptes-phase{background:var(--bg-secondary);border-radius:var(--radius);border-left:4px solid #9b59b6;padding:1rem}[data-theme=light] .ptes-phase{background:var(--bg-secondary);border-left-color:#7e22ce}.search-highlight-active{background:var(--bg-accent-transparent-active);color:var(--text-accent-light);box-shadow:0 0 0 2px var(--bg-accent-transparent-hover);border-radius:2px;padding:0 2px;transition:background .6s,box-shadow .6s}.search-highlight-fade{box-shadow:none;background:0 0}@media (max-width:768px){.sidebar{border-right:none;border-bottom:1px solid var(--border-default);width:100%;height:auto;position:relative}.sidebar-collapsed{border-bottom:1px solid var(--border-default);width:100%;height:auto;padding:.75rem;overflow:visible}.main-content{margin-left:0}body:has(.sidebar-collapsed) .main-content{margin-left:0}.sidebar-open-btn{margin:.5rem;position:static}}.chapter-nav{border-top:1px solid var(--border-default);margin-top:4rem;padding-top:2rem}.chapter-nav-inner{justify-content:space-between;gap:1rem;display:flex}.chapter-nav-btn{background:var(--bg-tertiary);border:1px solid var(--bg-active);color:var(--foreground);border-radius:12px;flex:0 auto;align-items:center;gap:.75rem;min-width:0;max-width:48%;padding:1rem 1.25rem;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;text-decoration:none!important}.chapter-nav-btn:hover{background:var(--bg-hover);border-color:var(--accent-primary);box-shadow:0 0 20px var(--bg-accent-transparent-hover);transform:translateY(-2px)}.chapter-nav-next{text-align:right;margin-left:auto}.chapter-nav-arrow{color:var(--accent-primary);flex-shrink:0;font-size:1.5rem;transition:transform .3s}.chapter-nav-prev:hover .chapter-nav-arrow{transform:translate(-4px)}.chapter-nav-next:hover .chapter-nav-arrow{transform:translate(4px)}.chapter-nav-label{flex-direction:column;gap:.15rem;min-width:0;display:flex}.chapter-nav-direction{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:.75rem;font-weight:600}.chapter-nav-title{color:var(--text-accent);white-space:nowrap;text-overflow:ellipsis;font-size:.95rem;font-weight:500;overflow:hidden}.search-trigger{background:var(--bg-hover);border:1px solid var(--border-subtle);width:100%;color:var(--text-muted);cursor:pointer;border-radius:8px;align-items:center;gap:.5rem;margin-bottom:1rem;padding:.5rem .75rem;font-size:.85rem;transition:all .2s;display:flex}.search-trigger:hover{background:var(--bg-active);border-color:var(--accent-primary);color:var(--text-secondary)}.search-trigger-text{text-align:left;flex:1}.search-trigger-kbd{background:var(--bg-tertiary);border:1px solid var(--border-default);color:var(--text-muted);border-radius:4px;padding:.15rem .4rem;font-family:inherit;font-size:.7rem}.search-overlay{background:var(--overlay-bg);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;justify-content:center;align-items:flex-start;padding-top:15vh;animation:.15s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.search-dialog{background:var(--bg-tertiary);border:1px solid var(--border-subtle);width:90vw;max-width:580px;box-shadow:0 25px 60px var(--shadow-color);border-radius:16px;animation:.2s slideDown;overflow:hidden}.search-input-wrapper{border-bottom:1px solid var(--bg-active);align-items:center;gap:.75rem;padding:1rem 1.25rem;display:flex}.search-icon{color:var(--accent-primary);flex-shrink:0}.search-input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-family:inherit;font-size:1rem}.search-input::placeholder{color:var(--border-hover)}.search-esc{background:var(--bg-hover);border:1px solid var(--border-default);color:var(--text-muted);cursor:pointer;border-radius:4px;padding:.2rem .5rem;font-family:inherit;font-size:.7rem;transition:background .15s}.search-esc:hover{background:var(--border-default)}.search-results{max-height:400px;overflow-y:auto}.search-results-list{margin:0;padding:.5rem;list-style:none}.search-result-item{text-align:left;cursor:pointer;width:100%;color:var(--foreground);background:0 0;border:none;border-radius:8px;flex-direction:column;gap:.25rem;padding:.75rem 1rem;font-family:inherit;transition:background .15s;display:flex}.search-result-item:hover,.search-result-active{background:var(--bg-active)}.search-result-title{color:var(--text-accent);font-size:.95rem;font-weight:600}.search-result-snippet{color:var(--text-muted);text-overflow:ellipsis;-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.8rem;line-height:1.4;display:-webkit-box;overflow:hidden}.search-result-item mark,.search-result-title mark{background:var(--bg-accent-transparent-active);color:var(--text-accent-light);border-radius:2px;padding:0 2px}.search-empty{text-align:center;color:var(--text-muted);padding:2rem}.search-empty-icon{margin-bottom:.5rem;font-size:2rem;display:block}.search-hints{text-align:center;color:var(--border-hover);padding:1.25rem;font-size:.85rem}.search-hints-shortcut{color:var(--text-faint);margin-top:.5rem;font-size:.75rem}.search-hints kbd{background:var(--bg-hover);border:1px solid var(--border-default);border-radius:3px;padding:.1rem .35rem;font-family:inherit;font-size:.7rem}@media (max-width:768px){.chapter-nav-inner{flex-direction:column}.chapter-nav-btn{max-width:100%}.chapter-nav-next{text-align:left;flex-direction:row-reverse;margin-left:0}.search-overlay{padding-top:5vh}.search-dialog{border-radius:12px;width:95vw}}[data-theme=light]{--bg-primary:#fff;--bg-secondary:#f8fafc;--bg-tertiary:#f1f5f9;--bg-hover:#e2e8f0;--bg-active:#cbd5e1;--border-subtle:#e2e8f0;--border-default:#cbd5e1;--border-hover:#94a3b8;--accent-primary:#2563eb;--bg-accent-transparent:#2563eb1a;--bg-accent-transparent-hover:#2563eb26;--bg-accent-transparent-active:#2563eb4d;--text-primary:#1e293b;--text-strong:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--text-faint:#94a3b8;--text-accent:#1d4ed8;--text-accent-light:#1e40af;--overlay-bg:#fffc;--shadow-color:#0000001a;--shadow-color-light:#0000000d;--color-green-border:#16a34a;--color-green-bg:#16a34a1a;--color-green-text:#15803d;--color-blue-border:#2563eb;--color-blue-bg:#2563eb1a;--color-blue-text:#1d4ed8;--color-yellow-border:#d97706;--color-yellow-bg:#d977061a;--color-yellow-text:#b45309}