@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap";:root{--bg-base:#0f1115;--bg-surface:#1a1d24;--bg-surface-elevated:#232730;--bg-surface-highlight:#2c313c;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-tertiary:#64748b;--accent-primary:#14b8a6;--accent-primary-hover:#0d9488;--btn-primary-bg:#14b8a6;--btn-primary-bg-hover:#2dd4bf;--btn-primary-bg-active:#0d9488;--btn-primary-glow:#14b8a661;--btn-primary-glow-hover:#2dd4bf94;--accent-secondary:#6366f1;--error:#ef4444;--success:#10b981;--border-color:#334155;--radius-sm:.375rem;--radius-md:.5rem;--radius-lg:.75rem;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--text-on-accent:#fff;--code-color:var(--accent-primary);--code-bg:var(--bg-surface-highlight);--syntax-keyword:#5eead4;--syntax-function:#93c5fd;--syntax-builtin:#c4b5fd;--syntax-string:#fcd34d;--syntax-number:#f472b6;--syntax-atom:#fb923c;--syntax-comment:#8292a8;--syntax-operator:#94a3b8;--syntax-punct:#cbd5e1}body.theme-daylight{--bg-base:#f1f5f9;--bg-surface:#fff;--bg-surface-elevated:#f8fafc;--bg-surface-highlight:#e2e8f0;--text-primary:#0f172a;--text-secondary:#475569;--text-tertiary:#64748b;--border-color:#cbd5e1;--accent-primary:#14b8a6;--accent-primary-hover:#0d9488;--btn-primary-bg:#14b8a6;--btn-primary-bg-hover:#0d9488;--btn-primary-bg-active:#0f766e;--btn-primary-glow:#14b8a652;--btn-primary-glow-hover:#14b8a680;--text-on-accent:#fff;--syntax-keyword:#0f766e;--syntax-function:#1d4ed8;--syntax-builtin:#6b21a8;--syntax-string:#b45309;--syntax-number:#be185d;--syntax-atom:#c2410c;--syntax-comment:#64748b;--syntax-operator:#475569;--syntax-punct:#334155}body.theme-blush{--bg-base:#fff0f2;--bg-surface:#fff5f7;--bg-surface-elevated:#ffe4e9;--bg-surface-highlight:#ffd6e0;--text-primary:#2d2b3d;--text-secondary:#5c5775;--text-tertiary:#6b6582;--border-color:#f2d5da;--accent-primary:#c04a77;--accent-primary-hover:#a83863;--btn-primary-bg:var(--accent-primary);--btn-primary-bg-hover:var(--accent-primary-hover);--btn-primary-glow:#c04a7759;--btn-primary-glow-hover:#c04a7785;--text-on-accent:#fff;--syntax-keyword:#a83863;--syntax-function:#583e7a;--syntax-builtin:#8b2650;--syntax-string:#8a4f00;--syntax-number:#9f1239;--syntax-atom:#a13b19;--syntax-comment:#6b6582;--syntax-operator:#5c5775;--syntax-punct:#2d2b3d}body.theme-oceanic{--bg-base:#0b1121;--bg-surface:#151e32;--bg-surface-elevated:#1e293b;--bg-surface-highlight:#334155;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-tertiary:#64748b;--border-color:#1e293b;--accent-primary:#38bdf8;--accent-primary-hover:#0ea5e9;--btn-primary-bg:var(--accent-primary);--btn-primary-bg-hover:var(--accent-primary-hover);--btn-primary-glow:#38bdf859;--btn-primary-glow-hover:#38bdf885;--text-on-accent:#0b1121;--syntax-keyword:#38bdf8;--syntax-function:#818cf8;--syntax-builtin:#a78bfa;--syntax-string:#fcd34d;--syntax-number:#34d399;--syntax-atom:#fb923c;--syntax-comment:#8292a8;--syntax-operator:#94a3b8;--syntax-punct:#cbd5e1}body.theme-carbon{--bg-base:#1e1e1e;--bg-surface:#252526;--bg-surface-elevated:#2d2d30;--bg-surface-highlight:#3e3e42;--text-primary:#ccc;--text-secondary:#a6a6a6;--text-tertiary:gray;--border-color:#3e3e42;--accent-primary:#007acc;--accent-primary-hover:#0098ff;--btn-primary-bg:#005fa3;--btn-primary-bg-hover:#005088;--btn-primary-glow:#007acc59;--btn-primary-glow-hover:#0098ff85;--text-on-accent:#fff;--syntax-keyword:#569cd6;--syntax-function:#dcdcaa;--syntax-builtin:#4ec9b0;--syntax-string:#ce9178;--syntax-number:#b5cea8;--syntax-atom:#569cd6;--syntax-comment:#6a9955;--syntax-operator:#d4d4d4;--syntax-punct:#ccc}body.theme-amber{--bg-base:#fdf6e3;--bg-surface:#f8f1de;--bg-surface-elevated:#f0e8cf;--bg-surface-highlight:#eee8d5;--text-primary:#33302a;--text-secondary:#5c5648;--text-tertiary:#6e644c;--border-color:#e0d6b8;--accent-primary:#8c6900;--accent-primary-hover:#755800;--btn-primary-bg:var(--accent-primary);--btn-primary-bg-hover:var(--accent-primary-hover);--btn-primary-glow:#8c690052;--btn-primary-glow-hover:#8c690080;--text-on-accent:#fff;--syntax-keyword:#5b6900;--syntax-function:#1d6ea8;--syntax-builtin:#5559a4;--syntax-string:#a73c10;--syntax-number:#b02868;--syntax-atom:#8c6900;--syntax-comment:#6e644c;--syntax-operator:#5c5648;--syntax-punct:#33302a}body.theme-daylight,body.theme-blush,body.theme-amber{--error:#dc2626;--success:#059669;--code-color:var(--text-primary);--code-bg:#0000000f}body.theme-daylight .glass-panel{background:#ffffffd9;border:1px solid #0000000d;box-shadow:0 4px 6px -1px #0000000d}body.theme-blush .glass-panel{background:#fff5f7d9;border:1px solid #0000000d;box-shadow:0 4px 6px -1px #0000000d}body.theme-amber .glass-panel{background:#fdf6e3d9;border:1px solid #0000000f;box-shadow:0 4px 6px -1px #0000000d}body.theme-daylight .button-secondary,body.theme-blush .button-secondary,body.theme-amber .button-secondary{color:var(--text-primary);background:#0000000a;border-color:#0000001f}body.theme-daylight .button-secondary:hover,body.theme-blush .button-secondary:hover,body.theme-amber .button-secondary:hover{background:#00000014;border-color:#0000002e}body.theme-daylight .button-secondary:active,body.theme-blush .button-secondary:active,body.theme-amber .button-secondary:active{background:#0000001f}body.theme-daylight .header-title img,body.theme-daylight .dashboard-logo img,body.theme-daylight .workspace-header-top img,body.theme-daylight .about-btn-logo,body.theme-blush .header-title img,body.theme-blush .dashboard-logo img,body.theme-blush .workspace-header-top img,body.theme-blush .about-btn-logo,body.theme-amber .header-title img,body.theme-amber .dashboard-logo img,body.theme-amber .workspace-header-top img,body.theme-amber .about-btn-logo{filter:invert()opacity(.8)}*{box-sizing:border-box;margin:0;padding:0}button,input,select,textarea{font-family:inherit}code,pre{font-family:var(--font-mono)}:focus-visible{outline:2px solid var(--accent-primary)!important;outline-offset:2px!important}button:focus:not(:focus-visible),a:focus:not(:focus-visible),input:focus:not(:focus-visible),select:focus:not(:focus-visible),textarea:focus:not(:focus-visible),[tabindex]:focus:not(:focus-visible){outline:none}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}body{font-family:var(--font-sans);background-color:var(--bg-base);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}#root{flex-direction:column;height:100dvh;display:flex}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:600}.glass-panel{-webkit-backdrop-filter:blur(12px);background:#1a1d24b3;border:1px solid #ffffff0d;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.app-container{flex-direction:column;width:100%;height:100%;display:flex;overflow:hidden}.header{border-bottom:1px solid var(--border-color);background-color:var(--bg-surface);justify-content:space-between;align-items:center;height:60px;padding:0 1.5rem;display:flex}.header-title{color:var(--text-primary);letter-spacing:-.02em;align-items:center;gap:.5rem;font-size:1.25rem;font-weight:700;display:flex}.main-content{flex:1;display:flex;overflow:hidden}.sidebar{border-right:1px solid var(--border-color);background-color:var(--bg-surface);flex-direction:column;width:400px;display:flex;overflow-y:auto}.workspace{background-color:var(--bg-base);flex-direction:column;flex:1;display:flex}.editor-section{border-bottom:1px solid var(--border-color);flex-direction:column;flex:2;display:flex}.terminal-section{flex:1}.section-header{text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);background-color:var(--bg-surface-elevated);border-bottom:1px solid var(--border-color);align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;display:flex}.button-primary{background:var(--btn-primary-bg,var(--accent-primary));color:var(--text-on-accent);letter-spacing:-.01em;cursor:pointer;white-space:nowrap;box-shadow:0 0 14px var(--btn-primary-glow,#14b8a661), 0 2px 6px #00000038, inset 0 1px .5px #ffffff59;text-shadow:0 1px 2px #00000040;border:none;border-radius:9999px;flex-shrink:0;justify-content:center;align-items:center;gap:.4rem;padding:.4rem 1rem;font-size:.85rem;font-weight:600;transition:all .25s cubic-bezier(.16,1,.3,1);display:inline-flex}.button-primary:hover{background:var(--btn-primary-bg-hover,var(--accent-primary-hover));color:var(--text-on-accent);box-shadow:0 0 22px var(--btn-primary-glow-hover,#2dd4bf94), 0 4px 14px #00000042, inset 0 1px 1px #ffffff73;filter:brightness(1.04);transform:translateY(-2px)}.button-primary:active{background:var(--btn-primary-bg-active,var(--btn-primary-bg-hover,var(--accent-primary-hover)));color:var(--text-on-accent);box-shadow:0 0 10px var(--btn-primary-glow,#14b8a64d), 0 1px 3px #0003, inset 0 1px 2px #0003;filter:none;transform:translateY(1px)}.button-primary:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;filter:grayscale(.8);text-shadow:none;transform:none}.button-primary svg{color:inherit;stroke:currentColor;filter:drop-shadow(0 1px 1.5px #00000040)}.button-secondary{color:var(--text-secondary);border:1px solid var(--border-color);cursor:pointer;white-space:nowrap;background:#ffffff0a;border-radius:9999px;flex-shrink:0;justify-content:center;align-items:center;gap:.4rem;padding:.4rem 1rem;font-size:.85rem;font-weight:500;transition:all .3s cubic-bezier(.34,1.56,.64,1);display:inline-flex;box-shadow:0 2px 8px #0000000d}.button-secondary:hover{color:var(--text-primary);border-color:var(--text-secondary);background:#ffffff14;transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.button-secondary:active{background:#ffffff0d;transform:translateY(1px);box-shadow:0 1px 2px #00000005}.header-btn{white-space:nowrap;box-sizing:border-box;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;gap:.4rem;height:30px;padding:0 .65rem;font-size:.8125rem;font-weight:500;text-decoration:none;transition:background-color .15s,border-color .15s,color .15s;display:inline-flex}.header-btn-label{white-space:nowrap;align-items:center;line-height:1;display:inline-flex}.header-divider{background-color:var(--border-color);flex-shrink:0;width:1px;height:18px;margin:0 .15rem}.markdown-content{color:var(--text-secondary);font-size:.875rem;line-height:1.65}.markdown-content ol,.markdown-content ul{margin:.6rem 0 1rem;padding-left:1.5rem}.markdown-content ol li,.markdown-content ul li{color:var(--text-secondary);margin-bottom:.45rem;line-height:1.55}.markdown-content p{margin:0 0 .85rem}.markdown-content strong{color:var(--text-primary);font-weight:600}.markdown-content code{background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);border-radius:var(--radius-sm);font-family:var(--font-mono);color:var(--accent-primary);padding:.12rem .4rem;font-size:.82em;font-weight:500}.problem-container{padding:1.5rem}.problem-title{margin-bottom:1rem;font-size:1.5rem}.problem-text{color:var(--text-secondary);margin-bottom:1.5rem}.problem-description-content{margin-bottom:1.5rem;font-size:.95rem;line-height:1.7}.problem-description-content p{margin:0 0 1rem}.problem-description-content strong,.problem-description-content b{color:var(--text-primary);font-weight:600}.problem-description-content ul,.problem-description-content ol{margin:.5rem 0 1rem;padding-left:1.4rem}.problem-description-content li{margin-bottom:.4rem;line-height:1.6}.problem-description-content code{background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--accent-primary);padding:.15rem .45rem;font-size:.85em}.problem-description-content table{border-collapse:collapse;border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;margin:1rem 0 1.5rem;font-size:.88rem;overflow:hidden}.problem-description-content th,.problem-description-content td{border:1px solid var(--border-color);text-align:left;padding:.65rem 1rem}.problem-description-content th{background-color:var(--bg-surface-elevated);color:var(--text-primary);font-weight:600}.problem-description-content tr:nth-child(2n) td{background-color:color-mix(in srgb, var(--bg-surface-elevated) 40%, transparent)}.example-box{background-color:var(--bg-surface-elevated);border-radius:var(--radius-md);border:1px solid var(--border-color);margin-bottom:1rem;padding:1rem}.example-box code{font-family:var(--font-mono);color:var(--accent-primary)}.terminal-section{border-top:1px solid var(--border-color);background-color:var(--bg-surface-elevated);flex-direction:column;flex-shrink:0;height:110px;display:flex}.terminal-output{font-family:var(--font-mono);color:var(--text-primary);flex:1;padding:1rem;font-size:.875rem;overflow-y:auto}.terminal-error{color:var(--error)}.test-results{border-top:1px solid var(--border-color);padding:1.5rem}.test-case{background-color:var(--bg-surface-elevated);border-radius:var(--radius-md);border:1px solid #0000;justify-content:space-between;align-items:flex-start;margin-bottom:.5rem;padding:.75rem;display:flex}.test-case.pass{background-color:#10b9810d;border-color:#10b9814d}.test-case.fail{background-color:#ef44440d;border-color:#ef44444d}.badge{text-transform:uppercase;border-radius:9999px;padding:.25rem .5rem;font-size:.75rem;font-weight:600}.badge.pass{color:var(--success);background-color:#10b98133}.badge.fail{color:var(--error);background-color:#ef444433}.smooth-scroll{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;will-change:transform, scroll-position;transform:translate(0,0)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#475569;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#64748b}.cm-theme{height:100%}.cm-editor{background-color:var(--bg-surface)!important;height:100%!important}.cm-gutters{background-color:var(--bg-surface-elevated)!important;border-right:1px solid var(--border-color)!important;color:var(--text-tertiary)!important}.score-display{background-color:var(--bg-base);border-radius:9999px;align-items:center;gap:.5rem;padding:.25rem .75rem;font-size:.875rem;font-weight:600;display:flex}.score-display.perfect{color:var(--success);border:1px solid #10b9814d}.score-display.partial{color:#fbbf24;border:1px solid #fbbf244d}.score-display.none{color:var(--text-tertiary);border:1px solid #0000}.dashboard-main{width:100%;max-width:1000px;margin:0 auto;padding:0 2rem 2rem}.dashboard-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;display:grid}.exam-card{border-radius:var(--radius-lg);flex-direction:column;padding:1.5rem;transition:transform .2s,box-shadow .2s;display:flex}.exam-card:hover{border-color:var(--accent-primary);transform:translateY(-4px);box-shadow:0 10px 25px -5px #0000004d,0 8px 10px -6px #0003}.exam-card-header{align-items:center;gap:.75rem;margin-bottom:1rem;display:flex}.exam-card-title{color:var(--text-primary);margin:0;font-size:1.25rem}.exam-card-body{color:var(--text-secondary);flex:1;margin-bottom:1.5rem;font-size:.875rem;line-height:1.6}.exam-card-footer{margin-top:auto}a.button-primary{text-decoration:none}.problem-list-item{border-radius:var(--radius-md);background-color:var(--bg-surface-elevated);align-items:center;gap:.75rem;padding:.75rem 1rem;text-decoration:none;transition:background-color .2s,transform .2s;display:flex}.problem-list-item:hover{background-color:var(--bg-surface-highlight);transform:translate(4px)}.problem-list-icon{justify-content:center;align-items:center;display:flex}.problem-list-content{flex:1;min-width:0}.problem-list-title{color:var(--text-primary);word-wrap:break-word;margin:0 0 .15rem;font-size:1rem;font-weight:500}.problem-list-desc{color:var(--text-secondary);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:.8125rem;line-height:1.4;display:-webkit-box;overflow:hidden}.problem-list-desc ul,.problem-list-desc ol{margin:0;padding:0;list-style:none}.problem-list-desc li{margin:0;padding:0;display:inline}.problem-list-desc li:not(:last-child):after{content:" • ";color:var(--text-tertiary);margin:0 .25rem}.problem-list-desc p{margin:0;display:inline}.problem-list-action{align-items:center;gap:.25rem;display:flex}.problem-description-content{color:var(--text-primary);font-size:1rem;line-height:1.6}.problem-description-content p{margin-bottom:1rem}.problem-description-content code{background-color:var(--code-bg);font-family:var(--font-mono);color:var(--code-color);border-radius:4px;padding:.2rem .4rem;font-weight:500}.problem-description-content ul{margin-bottom:1rem;padding-left:1.5rem}.problem-description-content li{margin-bottom:.5rem}.button-ai{background:var(--btn-primary-bg,var(--accent-primary));color:var(--text-on-accent);letter-spacing:-.01em;font-size:.85rem;font-weight:600;font-family:var(--font-sans);cursor:pointer;white-space:nowrap;box-shadow:0 0 14px var(--btn-primary-glow,#14b8a661), 0 2px 6px #00000038, inset 0 1px .5px #ffffff59;text-shadow:0 1px 2px #00000040;border:none;border-radius:9999px;flex-shrink:0;justify-content:center;align-items:center;gap:.4rem;padding:.4rem 1rem;transition:all .25s cubic-bezier(.16,1,.3,1);display:inline-flex}.button-ai:hover{background:var(--btn-primary-bg-hover,var(--accent-primary-hover));color:var(--text-on-accent);box-shadow:0 0 22px var(--btn-primary-glow-hover,#2dd4bf94), 0 4px 14px #00000042, inset 0 1px 1px #ffffff73;filter:brightness(1.04);transform:translateY(-2px)scale(1.02)}.button-ai:active{background:var(--btn-primary-bg-active,var(--btn-primary-bg-hover,var(--accent-primary-hover)));color:var(--text-on-accent);box-shadow:0 0 10px var(--btn-primary-glow,#14b8a64d), 0 1px 3px #0003, inset 0 1px 2px #0003;filter:none;transform:translateY(1px)}.button-ai svg{color:inherit;stroke:currentColor;filter:drop-shadow(0 1px 1.5px #00000040)}.ai-chat-bubble{word-break:break-word;border-radius:12px;max-width:85%;margin-bottom:1rem;padding:.75rem 1rem;font-size:.9rem;line-height:1.5}.ai-chat-bubble.user{background-color:var(--bg-surface-highlight);color:var(--text-primary);border-bottom-right-radius:2px;align-self:flex-end}.ai-chat-bubble.assistant{color:var(--text-primary);background-color:#14b8a61a;border:1px solid #14b8a633;border-bottom-left-radius:2px;align-self:flex-start}.ai-chat-bubble p{margin-bottom:.75rem}.ai-chat-bubble p:last-child{margin-bottom:0}.ai-chat-bubble code{font-family:var(--font-mono);color:#a8c7fa;background-color:#ffffff1a;border-radius:4px;padding:.15rem .35rem;font-size:.9em}.ai-chat-bubble pre{border-radius:var(--radius-md);background-color:#0000004d;margin:.75rem 0;padding:1rem;overflow-x:auto}.ai-chat-bubble pre code{color:inherit;background-color:#0000;padding:0}.ai-chat-bubble ul,.ai-chat-bubble ol{margin-bottom:.75rem;padding-left:1.5rem}.ai-chat-bubble li{margin-bottom:.25rem}.zc-dashboard-container.app-container{min-height:100%;height:auto!important;overflow:visible!important}.zc-tests-ws-section{overflow-anchor:none;position:relative;overflow:visible}.category-section{scroll-margin-top:var(--zc-section-scroll-margin,54px);overflow-anchor:none;grid-template-columns:clamp(190px,23%,260px) minmax(0,1fr);align-items:start;gap:clamp(1.1rem,2.2vw,2rem);margin-bottom:0;display:grid}.category-header-sticky{top:calc(var(--zc-section-sticky-top,52px) - 1px);z-index:30;background-color:var(--bg-base);box-sizing:border-box;min-width:0;padding:calc(.65rem + 1px) 0 .65rem;transition:box-shadow .2s,border-color .2s;position:sticky;container:category-section-header/scroll-state}.category-sticky-heading{color:var(--text-primary);border-left:4px solid var(--accent-primary);white-space:normal;overflow-wrap:break-word;word-break:break-word;margin:0;padding-left:.85rem;font-size:1.35rem;line-height:1.35;transition:color .18s}@container category-section-header scroll-state(stuck:top){.category-sticky-heading{color:var(--accent-primary)}}.category-header-sticky[data-stuck=true] .category-sticky-heading{color:var(--accent-primary)}.category-problems-list{flex-direction:column;gap:.6rem;min-width:0;padding-top:.65rem;padding-bottom:2.25rem;display:flex}.category-section>.zc-empty-state{margin-top:.65rem;margin-bottom:2.25rem}.category-nav-container{top:var(--zc-cat-sticky-top,0px);z-index:40;background-color:var(--bg-base);border-bottom:1px solid var(--border-color);-webkit-overflow-scrolling:touch;scrollbar-width:none;box-sizing:border-box;flex-flow:row;justify-content:flex-start;align-items:center;gap:.6rem;margin:0 -.5rem 1.25rem;padding:.65rem .5rem;transition:box-shadow .2s,border-color .2s;display:flex;position:sticky;overflow:auto hidden}.category-nav-container[data-stuck=true]{box-shadow:0 8px 20px -10px #00000059}.category-nav-container>.category-nav-btn:first-child{margin-left:auto}.category-nav-container>.category-nav-btn:last-child{margin-right:auto}.category-nav-container::-webkit-scrollbar{display:none}@media (width<=768px){#root,.app-container{height:auto;min-height:100dvh}.dashboard-main{padding:0 .75rem 1.5rem!important}.main-content{overflow-y:visible;flex-direction:column!important}.sidebar{border-bottom:1px solid var(--border-color);max-height:none;border-right:none!important;width:100%!important}.workspace{flex-direction:column!important}.workspace>div:first-child{flex-direction:column!important;width:100%!important;height:auto!important;display:flex!important}.editor-section{min-height:50vh!important}.terminal-section{min-height:350px!important}.workspace>div:last-child{width:100%!important;min-height:50vh!important;padding-left:1rem!important}.drag-handle{display:none!important}.header:not(.zc-command-header){flex-direction:column;justify-content:center;gap:.75rem;height:auto;padding:.75rem .5rem}.header:not(.zc-command-header)>div{flex-wrap:wrap;justify-content:center;gap:.5rem!important}.header:not(.zc-command-header) .button-primary,.header:not(.zc-command-header) .button-secondary,.button-ai,.workspace-header .button-primary,.workspace-header .button-secondary{justify-content:center;align-items:center;width:36px;height:36px;display:flex;padding:.5rem!important}.header:not(.zc-command-header) .header-btn{border-radius:6px!important;width:32px!important;height:32px!important}.header:not(.zc-command-header)>div>div[style*=borderRight]{border-right:none!important;margin-right:0!important;padding-right:0!important}.workspace-header-top{width:100%;justify-content:space-between!important}.category-section{grid-template-columns:minmax(0,1fr);gap:.5rem;margin-bottom:0!important}.category-header-sticky{top:calc(var(--zc-section-sticky-top,48px) - 1px);z-index:30;background-color:var(--bg-base);border-bottom:1px solid var(--border-color);margin:0 -.5rem;padding:calc(.5rem + 1px) .5rem .5rem;position:sticky}.category-problems-list{padding-top:.2rem;padding-bottom:1.75rem}.category-nav-container{gap:.45rem;margin:0 -.5rem 1rem;padding:.5rem}}:root{--cm-bg:var(--bg-surface-elevated);--cm-fg:#abb2bf;--cm-keyword:#c678dd;--cm-string:#98c379;--cm-variable:#e06c75;--cm-function:#61afef;--cm-number:#d19a66;--cm-comment:#5c6370;--cm-operator:#56b6c2;--cm-property:#e5c07b;--cm-cursor:var(--accent-primary);--cm-selection:#61afef33;--cm-activeLine:#ffffff08;--cm-gutter-bg:var(--bg-surface-elevated);--cm-gutter-fg:#4b5263}body.theme-daylight{--cm-bg:var(--bg-surface-highlight);--cm-fg:#24292e;--cm-keyword:#d73a49;--cm-string:#032f62;--cm-variable:#e36209;--cm-function:#6f42c1;--cm-number:#005cc5;--cm-comment:#6a737d;--cm-operator:#d73a49;--cm-property:#005cc5;--cm-cursor:var(--accent-primary);--cm-selection:#0366d633;--cm-activeLine:#0000000a;--cm-gutter-bg:var(--bg-surface-highlight);--cm-gutter-fg:#d1d5da}body.theme-blush{--cm-bg:#fff0f5;--cm-fg:#4a3b42;--cm-keyword:#d85c8a;--cm-string:#22863a;--cm-variable:#b33959;--cm-function:#6f42c1;--cm-number:#005cc5;--cm-comment:#968991;--cm-operator:#d85c8a;--cm-property:#6f42c1;--cm-cursor:var(--accent-primary);--cm-selection:#d85c8a26;--cm-activeLine:#00000008;--cm-gutter-bg:#fff0f5;--cm-gutter-fg:#d2c4cc}body.theme-oceanic{--cm-bg:var(--bg-surface-elevated);--cm-fg:#a6accd;--cm-keyword:#c792ea;--cm-string:#c3e88d;--cm-variable:#f07178;--cm-function:#82aaff;--cm-number:#f78c6c;--cm-comment:#676e95;--cm-operator:#89ddff;--cm-property:#ffcb6b;--cm-cursor:var(--accent-primary);--cm-selection:#82aaff33;--cm-activeLine:#0003;--cm-gutter-bg:var(--bg-surface-elevated);--cm-gutter-fg:#4e5579}body.theme-carbon{--cm-bg:#1e1e1e;--cm-fg:#d4d4d4;--cm-keyword:#c586c0;--cm-string:#ce9178;--cm-variable:#9cdcfe;--cm-function:#dcdcaa;--cm-number:#b5cea8;--cm-comment:#6a9955;--cm-operator:#d4d4d4;--cm-property:#4ec9b0;--cm-cursor:var(--accent-primary);--cm-selection:#264f7880;--cm-activeLine:#ffffff0a;--cm-gutter-bg:#1e1e1e;--cm-gutter-fg:#858585}body.theme-amber{--cm-bg:#fdf6e3;--cm-fg:#657b83;--cm-keyword:#859900;--cm-string:#2aa198;--cm-variable:#268bd2;--cm-function:#b58900;--cm-number:#d33682;--cm-comment:#93a1a1;--cm-operator:#657b83;--cm-property:#268bd2;--cm-cursor:var(--accent-primary);--cm-selection:#eee8d5cc;--cm-activeLine:#0000000d;--cm-gutter-bg:#fdf6e3;--cm-gutter-fg:#93a1a1}.markdown-cell h1{border-bottom:2px solid var(--border-color);color:var(--text-primary);margin:1.5rem 0 .75rem;padding-bottom:.5rem;font-size:1.75rem;font-weight:700}.markdown-cell h2{color:var(--text-primary);margin:1.25rem 0 .5rem;font-size:1.35rem;font-weight:600}.markdown-cell h3{color:var(--text-primary);margin:1rem 0 .5rem;font-size:1.1rem;font-weight:600}.markdown-cell p{margin:.5rem 0;line-height:1.7}.markdown-cell ul,.markdown-cell ol{margin:.5rem 0;padding-left:1.5rem}.markdown-cell li{margin-bottom:.25rem}.markdown-cell code{background-color:var(--bg-surface-elevated);font-size:.85em;font-family:var(--font-mono);color:var(--accent-primary);border-radius:.25rem;padding:.15rem .4rem}.markdown-cell pre{background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);margin:.75rem 0;padding:1rem;overflow-x:auto}.markdown-cell pre code{color:var(--text-primary);background:0 0;padding:0}.markdown-cell blockquote{border-left:3px solid var(--accent-primary);color:var(--text-secondary);background-color:color-mix(in srgb, var(--accent-primary) 5%, var(--bg-surface));border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:.75rem 0;padding:.5rem 1rem}.markdown-cell table{border-collapse:collapse;width:100%;margin:.75rem 0;font-size:.875rem}.markdown-cell th,.markdown-cell td{border:1px solid var(--border-color);text-align:left;padding:.5rem .75rem}.markdown-cell th{background-color:var(--bg-surface-elevated);font-weight:600}.markdown-cell tr:nth-child(2n){background-color:color-mix(in srgb, var(--bg-surface) 50%, transparent)}.markdown-cell a{color:var(--accent-primary);text-decoration:none}.markdown-cell a:hover{text-decoration:underline}.markdown-cell img{border-radius:var(--radius-md);max-width:100%;margin:.5rem 0}.markdown-cell strong{color:var(--text-primary);font-weight:600}.markdown-cell hr{background-color:var(--border-color);border:none;height:1px;margin:1.5rem 0}.code-cell:hover{border-color:color-mix(in srgb, var(--accent-primary) 40%, var(--border-color))!important}.cell-output table{border-collapse:collapse;font-size:.8rem;font-family:var(--font-mono);margin:.5rem 0}.cell-output th,.cell-output td{border:1px solid var(--border-color);padding:.3rem .5rem}.cell-output th{background-color:var(--bg-surface-elevated);font-weight:600}.learning-ai-panel{animation:.25s ease-out slideInRight}@keyframes slideInRight{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.learning-ai-panel textarea:focus{box-shadow:0 0 0 2px color-mix(in srgb, var(--accent-primary) 20%, transparent);border-color:var(--accent-primary)!important}.notebook-toc{animation:.2s ease-out slideInLeft}.toc-item{text-align:left;cursor:pointer;width:100%;color:var(--text-secondary);border-radius:var(--radius-sm);background:0 0;border:none;margin-bottom:.2rem;padding:.4rem .5rem;line-height:1.4;transition:all .2s;display:block;position:relative}.toc-item:hover{background-color:var(--bg-surface-elevated);color:var(--text-primary);transform:translate(2px)}.toc-item.active{background-color:color-mix(in srgb, var(--accent-primary) 10%, transparent);color:var(--accent-primary);font-weight:600}.toc-item.active:before{content:"";background-color:var(--accent-primary);border-radius:2px;width:3px;position:absolute;top:15%;bottom:15%;left:0}@keyframes slideInLeft{0%{opacity:0;transform:translate(-100%)}to{opacity:1;transform:translate(0)}}@media (width<=768px){.learning-ai-panel{z-index:100;top:0;right:0;width:100%!important;height:100%!important;position:absolute!important}.notebook-toc{z-index:100;top:0;left:0;box-shadow:4px 0 12px #0000004d;height:100%!important;position:absolute!important}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:1s linear infinite spin}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleUp{0%{opacity:0;transform:scale(.96)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}.master-cheatsheet-card{background:var(--bg-surface-elevated);border:1px solid var(--border-color);border-radius:var(--radius-lg,12px);justify-content:space-between;align-items:center;gap:2rem;margin-bottom:2.25rem;padding:1.75rem 2rem;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden;box-shadow:0 10px 30px -10px #00000040}.master-cheatsheet-card:before{content:"";background:linear-gradient(90deg, var(--accent-primary), var(--accent-secondary,#6366f1));height:3px;position:absolute;top:0;left:0;right:0}.master-cheatsheet-card:hover{border-color:color-mix(in srgb, var(--accent-primary) 50%, var(--border-color));transform:translateY(-2px);box-shadow:0 15px 35px -10px #00000059}.master-cheatsheet-content{flex:1;min-width:0}.master-cheatsheet-badges{flex-wrap:wrap;align-items:center;gap:.6rem;margin-bottom:.65rem;display:flex}.badge-master-tag{letter-spacing:.05em;text-transform:uppercase;background-color:color-mix(in srgb, var(--accent-primary) 15%, transparent);color:var(--accent-primary);border:1px solid color-mix(in srgb, var(--accent-primary) 35%, transparent);border-radius:6px;align-items:center;gap:.35rem;padding:.2rem .6rem;font-size:.72rem;font-weight:700;display:inline-flex}.badge-master-sub{letter-spacing:.04em;text-transform:uppercase;color:var(--text-tertiary);font-size:.72rem;font-weight:600}.master-cheatsheet-title{color:var(--text-primary);letter-spacing:-.01em;margin:0 0 .5rem;font-size:1.35rem;font-weight:700}.master-cheatsheet-desc{color:var(--text-secondary);max-width:720px;margin:0 0 1rem;font-size:.92rem;line-height:1.55}.master-cheatsheet-features{flex-wrap:wrap;gap:.5rem;display:flex}.feature-pill{background:var(--bg-surface);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:20px;padding:.2rem .65rem;font-size:.76rem;font-weight:500;transition:all .15s}.feature-pill:hover{color:var(--text-primary);border-color:var(--accent-primary)}.master-cheatsheet-action{flex-direction:column;flex-shrink:0;align-items:center;gap:.6rem;display:flex}.master-open-btn{cursor:pointer;white-space:nowrap;box-shadow:0 4px 16px color-mix(in srgb, var(--accent-primary) 36%, transparent), inset 0 1px 1px #ffffff59;border:1px solid #ffffff40;border-radius:9999px;align-items:center;gap:.6rem;padding:.7rem 1.6rem;font-size:.92rem;font-weight:600;transition:all .25s cubic-bezier(.16,1,.3,1);display:inline-flex}.master-open-btn:hover{box-shadow:0 8px 24px color-mix(in srgb, var(--accent-primary) 48%, transparent), inset 0 1px 1px #ffffff73;transform:translateY(-1.5px)}.master-open-btn:active{box-shadow:0 2px 8px color-mix(in srgb, var(--accent-primary) 30%, transparent), inset 0 1px 1px #0003;transform:translateY(.5px)}.master-cheatsheet-subnote{color:var(--text-tertiary);text-align:center;font-size:.74rem}.badge-practice-pill{letter-spacing:.05em;text-transform:uppercase;background-color:color-mix(in srgb, var(--accent-primary) 12%, transparent);color:var(--accent-primary);border:1px solid color-mix(in srgb, var(--accent-primary) 28%, transparent);white-space:nowrap;border-radius:4px;flex-shrink:0;align-items:center;gap:.3rem;padding:.15rem .5rem;font-size:.66rem;font-weight:700;display:inline-flex}.lecture-cheatsheet-btn{cursor:pointer;color:var(--accent-primary);background-color:color-mix(in srgb, var(--accent-primary) 8%, var(--bg-surface));border:1px solid color-mix(in srgb, var(--accent-primary) 32%, var(--border-color));white-space:nowrap;border-radius:9999px;justify-content:center;align-items:center;gap:.4rem;padding:.36rem .85rem;font-size:.78rem;font-weight:600;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex;box-shadow:0 2px 6px #0000000d}.lecture-cheatsheet-btn:hover{background-color:color-mix(in srgb, var(--accent-primary) 16%, var(--bg-surface));border-color:var(--accent-primary);box-shadow:0 4px 12px color-mix(in srgb, var(--accent-primary) 22%, transparent);transform:translateY(-1px)}.lecture-cheatsheet-btn:active{transform:translateY(0);box-shadow:0 1px 3px #0000001a}@media (width<=840px){.master-cheatsheet-card{flex-direction:column;align-items:flex-start;gap:1.25rem;padding:1.5rem}.master-cheatsheet-action{align-items:stretch;width:100%}.master-open-btn{justify-content:center;width:100%}}.dashboard-header-wrapper{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1.5rem;margin-top:1.5rem;margin-bottom:2rem;display:flex}.dashboard-header-text{flex:1;min-width:280px}.dashboard-header-title{letter-spacing:-.02em;color:var(--text-primary);margin:0 0 .5rem;font-size:2.25rem;font-weight:700;line-height:1.2}.dashboard-header-subtitle{color:var(--text-secondary);max-width:650px;margin:0;font-size:1.05rem;line-height:1.5}.segmented-pill-container{flex-shrink:0;align-items:center;margin:0;display:flex}.segmented-pill-track{background:color-mix(in srgb, var(--bg-base) 80%, #000 20%);border:1px solid color-mix(in srgb, var(--border-color) 75%, transparent);border-radius:9999px;align-items:center;gap:2px;padding:3px;display:inline-flex;position:relative;box-shadow:inset 0 1.5px 4px #0006,0 2px 8px #00000026}.segmented-pill-btn{cursor:pointer;color:var(--text-secondary);white-space:nowrap;-webkit-user-select:none;user-select:none;letter-spacing:.01em;background:0 0;border:1px solid #0000;border-radius:9999px;justify-content:center;align-items:center;padding:.42rem 1.15rem;font-size:.86rem;font-weight:550;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex;position:relative}.segmented-pill-btn:hover:not(.active){color:var(--text-primary);background:color-mix(in srgb, var(--text-primary) 8%, transparent)}.segmented-pill-btn.active{background:var(--btn-primary-bg,var(--accent-primary));color:var(--text-on-accent);box-shadow:0 0 16px 2px color-mix(in srgb, var(--btn-primary-bg,var(--accent-primary)) 50%, transparent), 0 2px 6px #0000004d, inset 0 1px 1px #ffffff59;text-shadow:0 1px 2px #00000040;border:1px solid #ffffff4d;font-weight:600;transform:translateY(-.5px)}.segmented-pill-btn.active svg{color:inherit;stroke:currentColor;filter:drop-shadow(0 1px 1.5px #00000040)}@media (width<=768px){.dashboard-header-wrapper{flex-direction:column;align-items:stretch;gap:1.25rem;margin-top:1.25rem;margin-bottom:1.75rem}.dashboard-header-title{font-size:1.85rem}.segmented-pill-container{width:100%}.segmented-pill-track{width:100%;max-width:100%;padding:3px}.segmented-pill-btn{flex:1;padding:.48rem .75rem;font-size:.84rem}}.category-nav-btn{letter-spacing:.012em;white-space:nowrap;cursor:pointer;color:var(--text-primary);background:var(--bg-surface-elevated);border:1px solid var(--border-color);-webkit-user-select:none;user-select:none;border-radius:9999px;flex-shrink:0;justify-content:center;align-items:center;gap:.35rem;padding:.44rem 1.05rem;font-size:.84rem;font-weight:550;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex;box-shadow:0 2px 6px #0000000f}.category-nav-btn .category-nav-count{opacity:.78;font-size:.78rem}.category-nav-btn:hover{color:var(--accent-primary);background:color-mix(in srgb, var(--accent-primary) 12%, var(--bg-surface-elevated));border-color:color-mix(in srgb, var(--accent-primary) 50%, transparent);box-shadow:0 4px 14px color-mix(in srgb, var(--accent-primary) 22%, transparent);transform:translateY(-1px)}.category-nav-btn.active{color:var(--accent-primary);background:color-mix(in srgb, var(--accent-primary) 16%, var(--bg-surface-elevated));border-color:var(--accent-primary);box-shadow:0 2px 12px color-mix(in srgb, var(--accent-primary) 25%, transparent);font-weight:650}.category-nav-btn.active .category-nav-count{opacity:1}.category-nav-btn:active{transform:translateY(.5px)scale(.98);box-shadow:0 1px 3px #0000001a}.katex,.katex-display{line-height:normal!important}.katex *{box-sizing:content-box!important}.katex-error{-webkit-text-decoration:underline dotted var(--error);text-decoration:underline dotted var(--error);color:inherit!important}.quiz-container{background-color:var(--bg-surface);scroll-behavior:smooth;height:100%;padding:1.75rem 2rem;overflow-y:auto}.quiz-header-banner{background:linear-gradient(135deg, color-mix(in srgb, var(--accent-primary) 10%, var(--bg-surface-elevated)), var(--bg-surface-elevated));border:1px solid color-mix(in srgb, var(--accent-primary) 25%, var(--border-color));border-radius:var(--radius-lg);margin-bottom:1.75rem;padding:1.25rem 1.5rem;box-shadow:0 4px 20px #00000014}.quiz-jump-bar{border-top:1px solid color-mix(in srgb, var(--border-color) 60%, transparent);flex-wrap:wrap;gap:.45rem;margin-top:1rem;padding-top:1rem;display:flex}.quiz-jump-btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);background-color:var(--bg-base);min-width:32px;height:32px;color:var(--text-secondary);cursor:pointer;justify-content:center;align-items:center;padding:0 .45rem;font-size:.8rem;font-weight:600;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex}.quiz-jump-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-1px)}.quiz-jump-btn.answered{background-color:color-mix(in srgb, var(--accent-primary) 18%, transparent);border-color:var(--accent-primary);color:var(--accent-primary)}.quiz-jump-btn.correct{background-color:color-mix(in srgb, var(--success) 20%, transparent);border-color:var(--success);color:var(--success)}.quiz-jump-btn.wrong{background-color:color-mix(in srgb, var(--error) 20%, transparent);border-color:var(--error);color:var(--error)}.quiz-question-card{background-color:var(--bg-surface-elevated);border-radius:var(--radius-lg);border:1px solid var(--border-color);margin-bottom:1.75rem;padding:1.5rem;transition:border-color .25s,box-shadow .25s,background-color .25s;position:relative;box-shadow:0 2px 10px #0000000a}.quiz-question-card.correct-card{border-color:var(--success);background-color:color-mix(in srgb, var(--success) 6%, var(--bg-surface-elevated))}.quiz-question-card.wrong-card{border-color:var(--error);background-color:color-mix(in srgb, var(--error) 6%, var(--bg-surface-elevated))}.quiz-options-list{flex-direction:column;gap:.75rem;display:flex}.quiz-option-card{border-radius:var(--radius-md);border:1px solid var(--border-color);background-color:var(--bg-surface);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:flex-start;gap:.9rem;padding:.85rem 1.15rem;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex;position:relative}.quiz-option-card:hover{border-color:color-mix(in srgb, var(--accent-primary) 60%, var(--border-color));background-color:color-mix(in srgb, var(--accent-primary) 5%, var(--bg-surface));transform:translate(3px)}.quiz-option-card.selected{border-color:var(--accent-primary);background-color:color-mix(in srgb, var(--accent-primary) 12%, var(--bg-surface));box-shadow:0 2px 12px color-mix(in srgb, var(--accent-primary) 18%, transparent)}.quiz-option-card.correct-selected{box-shadow:0 2px 12px color-mix(in srgb, var(--success) 20%, transparent);border-color:var(--success)!important;background-color:color-mix(in srgb, var(--success) 14%, var(--bg-surface))!important}.quiz-option-card.wrong-selected{box-shadow:0 2px 12px color-mix(in srgb, var(--error) 20%, transparent);border-color:var(--error)!important;background-color:color-mix(in srgb, var(--error) 14%, var(--bg-surface))!important}.quiz-option-card.correct-missed{border:1.5px dashed var(--success)!important;background-color:color-mix(in srgb, var(--success) 7%, var(--bg-surface))!important}.quiz-option-card.dimmed{opacity:.55}.quiz-letter-badge{border-radius:var(--radius-sm);border:1px solid var(--border-color);background-color:var(--bg-base);width:32px;min-width:32px;height:32px;color:var(--text-secondary);flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;font-size:.88rem;font-weight:700;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex}.quiz-option-card:hover .quiz-letter-badge{border-color:var(--accent-primary);color:var(--accent-primary)}.quiz-option-card.selected .quiz-letter-badge{background-color:var(--accent-primary);border-color:var(--accent-primary);color:#fff;box-shadow:0 2px 8px color-mix(in srgb, var(--accent-primary) 40%, transparent)}.quiz-option-card.correct-selected .quiz-letter-badge{background-color:var(--success);border-color:var(--success);color:#fff}.quiz-option-card.wrong-selected .quiz-letter-badge{background-color:var(--error);border-color:var(--error);color:#fff}.quiz-option-card.correct-missed .quiz-letter-badge{border:1.5px dashed var(--success);color:var(--success);background-color:#0000}.quiz-indicator{border:1.5px solid var(--border-color);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:20px;min-width:20px;height:20px;margin-top:6px;transition:all .2s;display:flex}.quiz-indicator.radio{border-radius:50%}.quiz-option-card:hover .quiz-indicator{border-color:var(--accent-primary)}.quiz-option-card.selected .quiz-indicator{background-color:var(--accent-primary);border-color:var(--accent-primary)}.quiz-option-card.correct-selected .quiz-indicator{background-color:var(--success);border-color:var(--success)}.quiz-option-card.wrong-selected .quiz-indicator{background-color:var(--error);border-color:var(--error)}.quiz-option-card.correct-missed .quiz-indicator{border-color:var(--success)}.quiz-option-content{min-width:0;color:var(--text-primary);-webkit-user-select:text;user-select:text;word-break:break-word;flex:1;font-size:.94rem;line-height:1.6}.quiz-option-content p{margin:0}.quiz-status-tag{border-radius:1rem;flex-shrink:0;align-items:center;gap:.3rem;margin-top:2px;padding:.2rem .55rem;font-size:.74rem;font-weight:600;display:inline-flex}.quiz-status-tag.correct{background-color:color-mix(in srgb, var(--success) 18%, transparent);color:var(--success);border:1px solid color-mix(in srgb, var(--success) 35%, transparent)}.quiz-status-tag.wrong{background-color:color-mix(in srgb, var(--error) 18%, transparent);color:var(--error);border:1px solid color-mix(in srgb, var(--error) 35%, transparent)}.quiz-status-tag.missed{background-color:color-mix(in srgb, var(--success) 10%, transparent);color:var(--success);border:1px dashed var(--success)}.zc-hub-main{box-sizing:border-box;width:100%;max-width:1360px;margin:0 auto;padding:1.5rem 2rem 3.5rem}.zc-quick-access-hub{flex-direction:column;gap:1.5rem;display:flex}.zc-hub-search-section{z-index:35;position:relative}.zc-hub-search-bar{border-radius:var(--radius-md);background-color:var(--bg-surface);border:1px solid var(--border-color);align-items:center;gap:.75rem;padding:.55rem .75rem .55rem 1rem;transition:border-color .2s,box-shadow .2s;display:flex}.zc-hub-search-bar:focus-within{border-color:var(--accent-primary);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent-primary) 16%, transparent)}.zc-hub-search-icon{color:var(--text-tertiary);flex-shrink:0}.zc-hub-search-input{min-width:0;color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:.94rem}.zc-hub-search-input::placeholder{color:var(--text-tertiary)}.zc-hub-cmd-btn{border:1px solid var(--border-color);background-color:var(--bg-surface-elevated);color:var(--text-secondary);cursor:pointer;border-radius:6px;flex-shrink:0;align-items:center;gap:.45rem;padding:.35rem .65rem;font-size:.78rem;font-weight:600;transition:all .18s;display:inline-flex}.zc-hub-cmd-btn:hover{border-color:var(--accent-primary);color:var(--text-primary)}.zc-hub-cmd-btn kbd,.zc-wcb-kbd{font-family:var(--font-mono,monospace);background-color:var(--bg-base);border:1px solid var(--border-color);color:var(--text-tertiary);border-radius:4px;padding:.1rem .35rem;font-size:.7rem}.zc-hub-search-results{border-radius:var(--radius-md);background-color:var(--bg-surface);border:1px solid var(--border-color);margin-top:.45rem;overflow:hidden;box-shadow:0 12px 32px #00000047}.zc-hub-search-empty{color:var(--text-secondary);padding:1rem 1.25rem;font-size:.88rem}.zc-hub-search-result-item{border:none;border-bottom:1px solid var(--border-color);width:100%;color:var(--text-primary);text-align:left;cursor:pointer;background:0 0;align-items:center;gap:.75rem;padding:.65rem 1rem;transition:background-color .15s;display:flex}.zc-hub-search-result-item:last-child{border-bottom:none}.zc-hub-search-result-item:hover{background-color:var(--bg-surface-elevated)}.zc-hub-sr-body{flex-direction:column;flex:1;gap:.1rem;min-width:0;display:flex}.zc-hub-sr-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.88rem;font-weight:600;overflow:hidden}.zc-hub-sr-sub{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:.76rem;overflow:hidden}.zc-continue-card{border-radius:var(--radius-md);background:linear-gradient(135deg, color-mix(in srgb, var(--accent-primary) 9%, var(--bg-surface)), var(--bg-surface));border:1px solid color-mix(in srgb, var(--accent-primary) 28%, var(--border-color));justify-content:space-between;align-items:center;gap:1.25rem;padding:1rem 1.35rem;display:flex}.zc-continue-left{flex:1;min-width:0}.zc-continue-badges{flex-wrap:wrap;align-items:center;gap:.45rem;margin-bottom:.35rem;display:flex}.zc-continue-label{letter-spacing:.05em;color:var(--accent-primary);text-transform:uppercase;align-items:center;gap:.3rem;font-size:.68rem;font-weight:700;display:inline-flex}.zc-continue-title{color:var(--text-primary);margin:0;font-size:1.12rem;font-weight:700}.zc-continue-subtitle{color:var(--text-secondary);margin:.2rem 0 0;font-size:.83rem}.zc-continue-right{flex-shrink:0;align-items:center;gap:.85rem;display:flex}.zc-progress-pills{align-items:center;gap:.45rem;display:flex}.zc-stat-pill{background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:999px;align-items:center;gap:.35rem;padding:.3rem .65rem;font-size:.76rem;font-weight:600;display:inline-flex}.zc-resume-btn{white-space:nowrap;align-items:center;gap:.45rem;height:38px;padding:0 1rem;font-size:.85rem;font-weight:600;display:inline-flex}.zc-section-header{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.5rem;margin-bottom:.75rem;display:flex}.zc-section-title{color:var(--text-primary);margin:0;font-size:1.1rem;font-weight:700}.zc-section-hint{color:var(--text-tertiary);font-size:.8rem}.zc-course-matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;display:grid}.zc-course-group-card{border-radius:var(--radius-md);background-color:var(--bg-surface);border:1px solid var(--border-color);flex-direction:column;gap:1rem;padding:1.25rem;display:flex}.zc-course-header{border-bottom:1px solid var(--border-color);align-items:flex-start;gap:.85rem;padding-bottom:.85rem;display:flex}.zc-course-icon-box{background-color:color-mix(in srgb, var(--accent-primary) 14%, var(--bg-surface-elevated));width:38px;height:38px;color:var(--accent-primary);border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.zc-course-title-wrap{flex:1;min-width:0}.zc-course-title-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;display:flex}.zc-course-name{color:var(--text-primary);margin:0;font-size:1.15rem;font-weight:700}.zc-course-tag{letter-spacing:.05em;background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:999px;padding:.16rem .5rem;font-size:.66rem;font-weight:700}.zc-course-desc{color:var(--text-secondary);margin:.25rem 0 0;font-size:.8rem;line-height:1.45}.zc-course-terms{flex-direction:column;gap:.85rem;display:flex}.zc-term-block{background-color:var(--bg-base);border:1px solid var(--border-color);border-radius:10px;padding:.85rem;transition:border-color .2s}.zc-term-block.active-global-term{border-color:color-mix(in srgb, var(--accent-primary) 42%, var(--border-color))}.zc-term-block-header{justify-content:space-between;align-items:center;margin-bottom:.6rem;display:flex}.zc-term-title{text-transform:uppercase;letter-spacing:.05em;color:var(--text-primary);font-size:.78rem;font-weight:700}.zc-term-title.term-final{color:var(--accent-primary)}.zc-term-tool-count{color:var(--text-tertiary);font-size:.72rem}.zc-term-tools-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem;display:grid}.zc-matrix-tool-item{align-items:stretch;display:flex;position:relative}.zc-matrix-tool-btn{border:1px solid var(--border-color);background-color:var(--bg-surface);width:100%;color:var(--text-primary);text-align:left;cursor:pointer;border-radius:8px;align-items:center;gap:.55rem;padding:.55rem 2rem .55rem .7rem;transition:all .16s;display:flex}.zc-matrix-tool-btn:hover{border-color:var(--accent-primary);background-color:var(--bg-surface-elevated);transform:translateY(-1px)}.zc-mt-icon{background-color:color-mix(in srgb, var(--accent-primary) 12%, var(--bg-surface-elevated));width:28px;height:28px;color:var(--accent-primary);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.zc-mt-body{flex-direction:column;flex:1;min-width:0;display:flex}.zc-mt-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.83rem;font-weight:600;overflow:hidden}.zc-mt-meta{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:.69rem;overflow:hidden}.zc-mt-arrow{color:var(--text-tertiary);flex-shrink:0}.zc-matrix-pin-btn{width:24px;height:24px;color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;border-radius:5px;justify-content:center;align-items:center;transition:color .15s,background-color .15s;display:inline-flex;position:absolute;top:50%;right:4px;transform:translateY(-50%)}.zc-matrix-pin-btn:hover,.zc-matrix-pin-btn.pinned{color:#fbbf24;background-color:#fbbf241f}.zc-shortcuts-columns{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;display:grid}.zc-shortcut-col{border-radius:var(--radius-md);background-color:var(--bg-surface);border:1px solid var(--border-color);flex-direction:column;gap:.75rem;padding:1rem 1.15rem;display:flex}.zc-shortcut-col-header{justify-content:space-between;align-items:center;display:flex}.zc-shortcut-col-title{align-items:center;gap:.45rem;display:flex}.zc-shortcut-col-title h3{color:var(--text-primary);margin:0;font-size:.92rem;font-weight:700}.zc-shortcut-badge{background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:999px;padding:.1rem .45rem;font-size:.72rem;font-weight:700}.zc-shortcut-empty{background-color:var(--bg-base);border:1px dashed var(--border-color);color:var(--text-secondary);border-radius:8px;padding:.85rem;font-size:.8rem;line-height:1.5}.zc-shortcut-list{flex-direction:column;gap:.4rem;display:flex}.zc-shortcut-item{align-items:center;gap:.35rem;display:flex}.zc-shortcut-link{border:1px solid var(--border-color);background-color:var(--bg-base);min-width:0;color:var(--text-primary);text-align:left;cursor:pointer;border-radius:8px;flex:1;align-items:center;gap:.6rem;padding:.48rem .65rem;transition:border-color .15s,background-color .15s;display:flex}.zc-shortcut-link:hover{border-color:var(--accent-primary);background-color:var(--bg-surface-elevated)}.zc-shortcut-text{flex-direction:column;flex:1;min-width:0;display:flex}.zc-shortcut-item-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.82rem;font-weight:600;overflow:hidden}.zc-shortcut-item-meta{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:.7rem;overflow:hidden}.zc-pin-icon-btn{width:28px;height:28px;color:var(--text-tertiary);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:inline-flex}.zc-pin-icon-btn:hover,.zc-pin-icon-btn.pinned{color:#fbbf24;background-color:#fbbf241f}.zc-workspace-context-bar{z-index:42;background-color:color-mix(in srgb, var(--bg-surface) 94%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);flex-shrink:0;padding:.45rem 1.25rem;position:sticky;top:0}.zc-wcb-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;max-width:1400px;margin:0 auto;display:flex}.zc-wcb-left{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.zc-wcb-hub-btn{border:1px solid var(--border-color);background-color:var(--bg-surface-elevated);height:32px;color:var(--text-primary);cursor:pointer;border-radius:6px;align-items:center;gap:.35rem;padding:0 .65rem;font-size:.78rem;font-weight:600;transition:all .15s;display:inline-flex}.zc-wcb-hub-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.zc-wcb-divider{background-color:var(--border-color);width:1px;height:20px}.zc-wcb-group{background-color:var(--bg-base);border:1px solid var(--border-color);border-radius:7px;align-items:center;padding:2px;display:inline-flex}.zc-wcb-course-btn,.zc-wcb-term-btn{height:28px;color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:5px;align-items:center;gap:.35rem;padding:0 .65rem;font-size:.76rem;font-weight:600;transition:all .15s;display:inline-flex}.zc-wcb-course-btn:hover,.zc-wcb-term-btn:hover{color:var(--text-primary)}.zc-wcb-course-btn.active,.zc-wcb-term-btn.active{background-color:var(--bg-surface-elevated);color:var(--accent-primary);box-shadow:0 1px 3px #0000002e}.zc-wcb-tools{flex-wrap:wrap;align-items:center;gap:.35rem;display:inline-flex}.zc-wcb-tool-btn{height:32px;color:var(--text-secondary);cursor:pointer;background-color:#0000;border:1px solid #0000;border-radius:7px;align-items:center;gap:.4rem;padding:0 .75rem;font-size:.8rem;font-weight:600;transition:all .16s;display:inline-flex}.zc-wcb-tool-btn:hover{background-color:var(--bg-surface-elevated);color:var(--text-primary)}.zc-wcb-tool-btn.active{background-color:color-mix(in srgb, var(--accent-primary) 15%, var(--bg-surface-elevated));border-color:color-mix(in srgb, var(--accent-primary) 45%, var(--border-color));color:var(--accent-primary)}.zc-wcb-right{align-items:center;gap:.45rem;display:flex}.zc-wcb-action-btn,.zc-wcb-search-btn{border:1px solid var(--border-color);background-color:var(--bg-surface-elevated);height:32px;color:var(--text-secondary);cursor:pointer;border-radius:6px;align-items:center;gap:.35rem;padding:0 .65rem;font-size:.76rem;font-weight:600;transition:all .15s;display:inline-flex}.zc-wcb-action-btn:hover,.zc-wcb-search-btn:hover{border-color:var(--accent-primary);color:var(--text-primary)}.zc-wcb-action-btn.pinned{color:#fbbf24;border-color:color-mix(in srgb, #fbbf24 45%, var(--border-color))}.zc-adaptive-workspace{flex-direction:column;gap:1.25rem;display:flex}.zc-ws-header{border-bottom:1px solid var(--border-color);flex-direction:column;gap:.75rem;padding-bottom:1rem;display:flex}.zc-ws-badges{flex-wrap:wrap;align-items:center;gap:.4rem;margin-bottom:.35rem;display:flex}.zc-ws-title{color:var(--text-primary);margin:0;font-size:1.55rem;font-weight:700}.zc-ws-subtitle{color:var(--text-secondary);margin:.25rem 0 0;font-size:.88rem}.zc-ws-mapping-banner{background-color:color-mix(in srgb, var(--accent-primary) 10%, var(--bg-surface));border:1px solid color-mix(in srgb, var(--accent-primary) 30%, var(--border-color));color:var(--text-secondary);border-radius:8px;align-items:flex-start;gap:.55rem;padding:.65rem .9rem;font-size:.82rem;line-height:1.45;display:flex}.zc-lectures-grid{grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:1.25rem;display:grid}.zc-lecture-module-card{border-radius:var(--radius-md);background-color:var(--bg-surface);border:1px solid var(--border-color);border-top:3px solid var(--accent-primary);flex-direction:column;padding:1.35rem;display:flex}.zc-lecture-module-card.zc-db-highlighted{border-color:color-mix(in srgb, var(--accent-primary) 50%, var(--border-color))}.zc-lm-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.65rem;display:flex}.zc-lm-badges{flex-wrap:wrap;align-items:center;gap:.4rem;display:flex}.zc-lm-title{color:var(--text-primary);margin:0 0 .35rem;font-size:1.15rem;font-weight:700}.zc-lm-subtitle{color:var(--text-secondary);margin:0 0 1rem;font-size:.84rem;line-height:1.5}.zc-lm-categories{flex-direction:column;flex:1;gap:.65rem;margin-bottom:1rem;display:flex}.zc-lm-cat-block{background-color:var(--bg-base);border:1px solid var(--border-color);border-radius:8px;padding:.6rem .75rem}.zc-lm-cat-name{color:var(--accent-primary);text-transform:uppercase;margin-bottom:.35rem;font-size:.76rem;font-weight:700}.zc-lm-item-list{color:var(--text-secondary);flex-direction:column;gap:.25rem;margin:0;padding-left:1.1rem;font-size:.78rem;display:flex}.zc-lm-item-list code{font-family:var(--font-mono,monospace);color:var(--text-primary)}.zc-lm-footer{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;gap:.5rem;padding-top:.85rem;display:flex}.zc-lm-labs-header{color:var(--text-primary);border-top:1px solid var(--border-color);align-items:center;gap:.4rem;margin-bottom:.5rem;padding-top:.75rem;font-size:.82rem;font-weight:700;display:flex}.zc-lm-notebooks-list{flex-direction:column;gap:.45rem;display:flex}.zc-lm-notebook-row{align-items:center;gap:.35rem;display:flex}.zc-lm-notebook-link{border:1px solid var(--border-color);background-color:var(--bg-base);border-radius:8px;flex-direction:column;flex:1;gap:.2rem;min-width:0;padding:.6rem .75rem;text-decoration:none;transition:all .16s;display:flex}.zc-lm-notebook-link:hover{border-color:var(--accent-primary);background-color:var(--bg-surface-elevated)}.zc-lm-nb-top{align-items:center;gap:.45rem;display:flex}.zc-lm-nb-title{color:var(--text-primary);flex:1;font-size:.85rem;font-weight:600}.zc-lm-nb-arrow{color:var(--text-tertiary);flex-shrink:0}.zc-lm-nb-desc{color:var(--text-secondary);font-size:.76rem;line-height:1.4}.zc-cs-toolbar{border-radius:var(--radius-md);flex-direction:column;gap:.85rem;margin-bottom:1.25rem;padding:1rem;display:flex}.zc-cs-toolbar-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;display:flex}.zc-cs-search-box{background-color:var(--bg-base);border:1px solid var(--border-color);border-radius:8px;flex:1;align-items:center;gap:.5rem;min-width:220px;padding:.45rem .75rem;display:flex}.zc-cs-search-box:focus-within{border-color:var(--accent-primary)}.zc-cs-search-icon{color:var(--text-tertiary);flex-shrink:0}.zc-cs-search-input{min-width:0;color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:.85rem}.zc-cs-clear-btn{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;align-items:center;padding:2px;display:inline-flex}.zc-cs-modal-btn{align-items:center;gap:.4rem;height:36px;padding:0 .85rem;font-size:.8rem;display:inline-flex}.zc-cs-lecture-pills{flex-wrap:wrap;align-items:center;gap:.4rem;display:flex}.zc-cs-pill{border:1px solid var(--border-color);background-color:var(--bg-base);color:var(--text-secondary);cursor:pointer;border-radius:999px;padding:.3rem .65rem;font-size:.76rem;font-weight:600;transition:all .15s}.zc-cs-pill:hover{border-color:var(--accent-primary);color:var(--text-primary)}.zc-cs-pill.active{background-color:var(--btn-primary-bg,var(--accent-primary));border-color:var(--btn-primary-bg,var(--accent-primary));color:var(--text-on-accent,#fff);box-shadow:0 0 10px var(--btn-primary-glow,#14b8a659);text-shadow:0 1px 2px #00000040}.zc-cs-cards-grid{grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:1rem;display:grid}.zc-cs-item-card{border-radius:var(--radius-md);flex-direction:column;gap:.55rem;padding:1rem;display:flex}.zc-cs-item-header{justify-content:space-between;align-items:flex-start;gap:.5rem;display:flex}.zc-cs-item-cat{text-transform:uppercase;color:var(--accent-primary);font-size:.68rem;font-weight:700}.zc-cs-item-title{color:var(--text-primary);margin:.1rem 0 0;font-size:.92rem;font-weight:700}.zc-cs-copy-btn{border:1px solid var(--border-color);background-color:var(--bg-base);width:28px;height:28px;color:var(--text-secondary);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;display:inline-flex}.zc-cs-syntax-box{background-color:color-mix(in srgb, var(--accent-primary) 10%, var(--bg-base));border:1px solid color-mix(in srgb, var(--accent-primary) 28%, var(--border-color));font-family:var(--font-mono,monospace);color:var(--accent-primary);border-radius:6px;padding:.35rem .55rem;font-size:.78rem;overflow-x:auto}.zc-cs-item-desc{color:var(--text-secondary);margin:0;font-size:.8rem;line-height:1.45}.zc-cs-code-pre{background-color:var(--bg-base);border:1px solid var(--border-color);font-family:var(--font-mono,monospace);color:var(--text-primary);border-radius:6px;margin:0;padding:.55rem .7rem;font-size:.76rem;overflow-x:auto}.zc-interactive-labs-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1rem;display:grid}.zc-lab-card{border-radius:var(--radius-md);flex-direction:column;gap:.65rem;padding:1.15rem;display:flex}.zc-lab-card-top{justify-content:space-between;align-items:center;gap:.4rem;display:flex}.zc-lab-badges{flex-wrap:wrap;align-items:center;gap:.35rem;display:flex}.zc-lab-lec-badge{background-color:var(--bg-base);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:4px;padding:.12rem .45rem;font-size:.68rem;font-weight:700}.zc-lab-title{color:var(--text-primary);margin:0;font-size:.98rem;font-weight:700}.zc-lab-desc{color:var(--text-secondary);flex:1;margin:0;font-size:.81rem;line-height:1.45}.zc-lab-footer{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;gap:.5rem;padding-top:.65rem;display:flex}.zc-lab-open-btn{align-items:center;gap:.3rem;height:32px;padding:0 .75rem;font-size:.78rem;text-decoration:none;display:inline-flex}.zc-tests-filter-bar{border-radius:var(--radius-md);flex-direction:column;gap:.65rem;margin-bottom:.5rem;padding:.75rem 1rem;display:flex}.zc-tests-search-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;display:flex}.zc-tests-status-pills{flex-wrap:wrap;align-items:center;gap:.35rem;display:flex}.zc-tests-cat-pills{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.zc-problem-row-wrapper{align-items:center;gap:.4rem;display:flex;position:relative}.zc-problem-row-wrapper .problem-list-item{flex:1;min-width:0}.zc-problem-pin-btn{border:1px solid var(--border-color);background-color:var(--bg-surface);width:34px;height:34px;color:var(--text-tertiary);cursor:pointer;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:inline-flex}.zc-problem-pin-btn:hover,.zc-problem-pin-btn.pinned{color:#fbbf24;border-color:color-mix(in srgb, #fbbf24 45%, var(--border-color))}.zc-empty-state{text-align:center;border-radius:var(--radius-md);color:var(--text-secondary);padding:2.5rem}.zc-command-palette-backdrop{z-index:1200;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background-color:#00000094;justify-content:center;align-items:flex-start;padding:8vh 1rem 2rem;display:flex;position:fixed;inset:0}.zc-command-palette-modal{border-radius:var(--radius-lg,12px);background-color:var(--bg-surface);border:1px solid var(--border-color);flex-direction:column;width:100%;max-width:680px;max-height:80vh;display:flex;overflow:hidden;box-shadow:0 24px 60px #00000073}.zc-cp-header{border-bottom:1px solid var(--border-color);align-items:center;gap:.65rem;padding:.85rem 1rem;display:flex}.zc-cp-search-icon{color:var(--accent-primary);flex-shrink:0}.zc-cp-input{min-width:0;color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:.96rem}.zc-cp-clear-btn{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;padding:.2rem;display:inline-flex}.zc-cp-esc-btn{font-family:var(--font-mono,monospace);border:1px solid var(--border-color);background-color:var(--bg-surface-elevated);color:var(--text-secondary);cursor:pointer;border-radius:5px;padding:.2rem .45rem;font-size:.7rem;font-weight:700}.zc-cp-filters{background-color:var(--bg-base);border-bottom:1px solid var(--border-color);flex-wrap:wrap;align-items:center;gap:.4rem;padding:.5rem 1rem;display:flex}.zc-cp-filter-pill{border:1px solid var(--border-color);background-color:var(--bg-surface);color:var(--text-secondary);cursor:pointer;border-radius:999px;align-items:center;gap:.3rem;padding:.22rem .6rem;font-size:.74rem;font-weight:600;display:inline-flex}.zc-cp-filter-pill.active{background-color:var(--btn-primary-bg,var(--accent-primary));border-color:var(--btn-primary-bg,var(--accent-primary));color:var(--text-on-accent,#fff);box-shadow:0 0 10px var(--btn-primary-glow,#14b8a659);text-shadow:0 1px 2px #00000040}.zc-cp-count-label{color:var(--text-tertiary);margin-left:auto;font-size:.72rem}.zc-cp-results{flex:1;padding:.4rem;overflow-y:auto}.zc-cp-empty{text-align:center;color:var(--text-secondary);padding:2rem 1rem;font-size:.88rem}.zc-cp-empty span{color:var(--text-tertiary);margin-top:.35rem;font-size:.78rem;display:block}.zc-cp-item{cursor:pointer;border-radius:8px;align-items:center;gap:.75rem;padding:.6rem .75rem;transition:background-color .12s;display:flex}.zc-cp-item.selected{background-color:var(--bg-surface-elevated);outline:1px solid color-mix(in srgb, var(--accent-primary) 45%, transparent)}.zc-cp-item-icon{background-color:color-mix(in srgb, var(--accent-primary) 13%, var(--bg-base));width:30px;height:30px;color:var(--accent-primary);border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.zc-cp-item-body{flex:1;min-width:0}.zc-cp-item-title-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;display:flex}.zc-cp-item-title{color:var(--text-primary);font-size:.86rem;font-weight:600}.zc-cp-item-badges{flex-wrap:wrap;align-items:center;gap:.3rem;display:inline-flex}.zc-badge-course,.zc-badge-term,.zc-badge-type{letter-spacing:.03em;border-radius:4px;padding:.1rem .42rem;font-size:.65rem;font-weight:700}.zc-badge-course{background-color:color-mix(in srgb, var(--accent-primary) 15%, var(--bg-base));color:var(--accent-primary)}.zc-badge-term{background-color:var(--bg-base);border:1px solid var(--border-color);color:var(--text-secondary)}.zc-badge-type{background-color:var(--bg-surface-elevated);color:var(--text-tertiary)}.zc-cp-item-subtitle{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;margin-top:.15rem;font-size:.75rem;overflow:hidden}.zc-cp-item-actions{flex-shrink:0;align-items:center;gap:.35rem;display:flex}.zc-cp-enter-icon{color:var(--text-tertiary)}.zc-cp-footer{background-color:var(--bg-base);border-top:1px solid var(--border-color);color:var(--text-tertiary);justify-content:space-between;align-items:center;padding:.55rem 1rem;font-size:.72rem;display:flex}.zc-cp-footer-keys{align-items:center;gap:.85rem;display:flex}.zc-cp-footer-keys kbd{font-family:var(--font-mono,monospace);border:1px solid var(--border-color);background-color:var(--bg-surface);border-radius:3px;margin-right:.2rem;padding:.08rem .3rem}@media (width<=960px){.zc-course-matrix-grid,.zc-shortcuts-columns{grid-template-columns:1fr}.zc-hub-main{padding:1.25rem 1.25rem 3rem}}@media (width<=640px){.zc-hub-main{padding:1rem .85rem 2.5rem}.zc-continue-card{flex-direction:column;align-items:stretch}.zc-continue-right{justify-content:space-between;width:100%}.zc-term-tools-grid{grid-template-columns:1fr}.zc-hub-cmd-btn span{display:none}.zc-workspace-context-bar{padding:.45rem .65rem}.zc-wcb-inner{gap:.45rem}.zc-wcb-tools{flex-wrap:nowrap;width:100%;padding-bottom:2px;overflow-x:auto}.zc-wcb-tool-btn{flex-shrink:0}.zc-wcb-action-label,.zc-wcb-kbd{display:none}.zc-lectures-grid,.zc-cs-cards-grid,.zc-interactive-labs-grid{grid-template-columns:1fr}}.zc-ws-compact-header{border-radius:var(--radius-md);background-color:var(--bg-surface);border:1px solid var(--border-color);margin-bottom:1.25rem;padding:.9rem 1.15rem}.zc-ws-terminal-line{font-family:var(--font-mono,monospace);flex-wrap:wrap;align-items:center;gap:.45rem;margin-bottom:.35rem;font-size:.76rem;display:flex}.zc-ws-prompt{color:var(--accent-primary);font-weight:700}.zc-ws-path{color:var(--text-secondary)}.zc-ws-badge-pill{background-color:color-mix(in srgb, var(--accent-primary) 15%, var(--bg-base));color:var(--accent-primary);border:1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);border-radius:999px;padding:.08rem .45rem;font-size:.66rem;font-weight:700}.zc-ws-title-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.zc-ws-compact-header .zc-ws-title{color:var(--text-primary);margin:0;font-size:1.25rem;font-weight:700}.zc-ws-compact-header .zc-ws-subtitle{color:var(--text-secondary);margin:.2rem 0 0;font-size:.82rem}.zc-recent-strip{border-top:1px dashed var(--border-color);align-items:center;gap:.5rem;margin-top:.7rem;padding-top:.65rem;display:flex;overflow-x:auto}.zc-recent-label{color:var(--text-tertiary);white-space:nowrap;flex-shrink:0;align-items:center;gap:.3rem;font-size:.72rem;font-weight:600;display:inline-flex}.zc-recent-pills{align-items:center;gap:.4rem;display:flex;overflow-x:auto}.zc-recent-pill{border:1px solid var(--border-color);background-color:var(--bg-base);color:var(--text-secondary);cursor:pointer;white-space:nowrap;border-radius:6px;align-items:center;gap:.35rem;padding:.2rem .55rem;font-size:.73rem;transition:all .15s;display:inline-flex}.zc-recent-pill:hover{border-color:var(--accent-primary);color:var(--text-primary)}.zc-recent-pill-term{font-family:var(--font-mono,monospace);color:var(--accent-primary);font-size:.65rem;font-weight:700}.zc-recent-pill-title{text-overflow:ellipsis;max-width:190px;overflow:hidden}.zc-cmd-overlay{z-index:9999;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000009e;justify-content:center;align-items:flex-start;padding:8vh 1rem 1rem;display:flex;position:fixed;inset:0}.zc-cmd-modal{background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;width:100%;max-width:640px;max-height:76vh;display:flex;overflow:hidden;box-shadow:0 20px 50px #00000073}.zc-cmd-input-row{border-bottom:1px solid var(--border-color);background-color:var(--bg-base);align-items:center;gap:.65rem;padding:.85rem 1rem;display:flex}.zc-cmd-search-icon{color:var(--accent-primary);flex-shrink:0}.zc-cmd-input{min-width:0;color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:.92rem}.zc-cmd-clear-btn,.zc-cmd-esc-btn{border:1px solid var(--border-color);background-color:var(--bg-surface);color:var(--text-secondary);font-size:.7rem;font-family:var(--font-mono,monospace);cursor:pointer;border-radius:5px;padding:.2rem .45rem}.zc-cmd-results{flex:1;padding:.45rem;overflow-y:auto}.zc-cmd-empty{text-align:center;color:var(--text-secondary);padding:2.25rem 1rem;font-size:.86rem}.zc-cmd-item{width:100%;color:var(--text-primary);text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:.7rem;padding:.55rem .75rem;transition:background-color .12s;display:flex}.zc-cmd-item.selected{background-color:var(--bg-surface-elevated);outline:1px solid color-mix(in srgb, var(--accent-primary) 40%, transparent)}.zc-cmd-item-icon{background-color:color-mix(in srgb, var(--accent-primary) 14%, var(--bg-base));width:28px;height:28px;color:var(--accent-primary);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.zc-cmd-item-main{flex:1;min-width:0}.zc-cmd-item-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;font-weight:600;overflow:hidden}.zc-cmd-item-subtitle{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:.74rem;overflow:hidden}.zc-cmd-item-badges{flex-shrink:0;align-items:center;gap:.35rem;display:inline-flex}.zc-cmd-badge{font-size:.65rem;font-weight:700;font-family:var(--font-mono,monospace);border-radius:4px;padding:.1rem .4rem}.zc-cmd-badge-term{background-color:var(--bg-base);border:1px solid var(--border-color);color:var(--text-secondary)}.zc-cmd-badge-tool{background-color:color-mix(in srgb, var(--accent-primary) 14%, var(--bg-base));color:var(--accent-primary)}.zc-cmd-item-arrow{color:var(--text-tertiary)}.zc-cmd-footer{border-top:1px solid var(--border-color);background-color:var(--bg-base);color:var(--text-tertiary);justify-content:space-between;align-items:center;gap:.75rem;padding:.5rem 1rem;font-size:.72rem;display:flex}.zc-cmd-footer kbd{font-family:var(--font-mono,monospace);border:1px solid var(--border-color);background-color:var(--bg-surface);border-radius:3px;padding:.08rem .3rem}.zc-mobile-menu-popover{background-color:var(--bg-surface);border:1px solid var(--border-color);z-index:9999;border-radius:12px;flex-direction:column;gap:.2rem;padding:.5rem;animation:.16s ease-out zc-popover-in;display:flex;position:fixed;box-shadow:0 16px 36px #00000073}@keyframes zc-popover-in{0%{opacity:0;transform:translateY(-4px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.zc-mobile-menu-header{padding:.5rem .6rem .4rem}.zc-mobile-menu-user-row{align-items:center;gap:.45rem;margin-bottom:.3rem;display:flex}.zc-mobile-menu-username{color:var(--text-primary);text-overflow:ellipsis;white-space:nowrap;font-size:.88rem;font-weight:700;overflow:hidden}.zc-mobile-menu-badge-row{align-items:center;gap:.35rem;display:flex}.zc-mobile-code-badge{background-color:var(--bg-base);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:4px;padding:.1rem .4rem;font-size:.68rem;font-weight:600}.zc-mobile-role-badge{background-color:color-mix(in srgb, var(--accent-primary) 15%, var(--bg-base));color:var(--accent-primary);border:1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);border-radius:4px;padding:.1rem .4rem;font-size:.68rem;font-weight:600}.zc-mobile-menu-divider{background-color:var(--border-color);height:1px;margin:.3rem 0}.zc-mobile-menu-item{width:100%;color:var(--text-secondary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:6px;align-items:center;gap:.6rem;padding:.5rem .65rem;font-size:.82rem;font-weight:500;transition:all .15s;display:flex}.zc-mobile-menu-item:hover,.zc-mobile-menu-item:focus-visible{background-color:var(--bg-surface-elevated);color:var(--text-primary);outline:none}.zc-mobile-menu-logout{color:var(--error)}.zc-mobile-menu-logout:hover,.zc-mobile-menu-logout:focus-visible{background-color:color-mix(in srgb, var(--error) 15%, var(--bg-surface));color:var(--error)}.zc-cmd-course-menu-portaled{background-color:var(--bg-surface)!important;border:1px solid var(--border-color)!important;z-index:9999!important;border-radius:10px!important;flex-direction:column!important;gap:.25rem!important;padding:.4rem!important;animation:.16s ease-out zc-popover-in!important;display:flex!important;position:fixed!important;box-shadow:0 16px 36px #00000073!important}@media (prefers-reduced-motion:reduce){.zc-mobile-menu-popover,.zc-cmd-course-menu-portaled{transition:none!important;animation:none!important}}.zc-minimal-home{flex-direction:column;align-items:center;gap:2rem;max-width:860px;margin:0 auto;padding:6vh 0 4rem;display:flex}.zc-home-hero{text-align:center;flex-direction:column;align-items:center;gap:.45rem;display:flex}.zc-home-terminal-tag{background-color:var(--bg-surface);border:1px solid var(--border-color);font-family:var(--font-mono,monospace);color:var(--text-secondary);border-radius:999px;align-items:center;gap:.4rem;padding:.22rem .65rem;font-size:.75rem;display:inline-flex}.zc-home-heading{letter-spacing:-.02em;color:var(--text-primary);margin:0;font-size:1.75rem;font-weight:800}.zc-home-search-container{z-index:45;width:100%;position:relative}.zc-home-search-bar{background-color:var(--bg-surface);border:1.5px solid var(--border-color);border-radius:12px;align-items:center;gap:.75rem;padding:.85rem 1.15rem;transition:border-color .18s,box-shadow .18s;display:flex;box-shadow:0 8px 28px #00000029}.zc-home-search-bar.focused,.zc-home-search-bar:focus-within{border-color:var(--accent-primary);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent-primary) 18%, transparent), 0 12px 32px #0000003d}.zc-home-search-icon{color:var(--accent-primary);flex-shrink:0}.zc-home-search-input{min-width:0;color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:.96rem}.zc-home-search-input::placeholder{color:var(--text-tertiary)}.zc-home-search-dropdown{background-color:var(--bg-surface);border:1px solid var(--border-color);z-index:60;border-radius:12px;max-height:62vh;position:absolute;top:calc(100% + .5rem);left:0;right:0;overflow-y:auto;box-shadow:0 20px 48px #00000061}.zc-home-courses-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;width:100%;display:grid}.zc-home-course-card{text-align:left;background-color:var(--bg-surface);border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;border-radius:14px;flex-direction:column;align-items:flex-start;padding:1.5rem 1.6rem;transition:transform .2s cubic-bezier(.16,1,.3,1),border-color .2s,box-shadow .2s;display:flex}.zc-home-course-card:hover{border-color:var(--accent-primary);box-shadow:0 12px 30px color-mix(in srgb, var(--accent-primary) 12%, #00000040);transform:translateY(-3px)}.zc-home-course-top{justify-content:space-between;align-items:center;width:100%;margin-bottom:1rem;display:flex}.zc-home-course-icon{background-color:color-mix(in srgb, var(--accent-primary) 14%, var(--bg-base));width:46px;height:46px;color:var(--accent-primary);border:1px solid color-mix(in srgb, var(--accent-primary) 28%, transparent);border-radius:11px;justify-content:center;align-items:center;display:inline-flex}.zc-home-course-badge{font-family:var(--font-mono,monospace);letter-spacing:.05em;border-radius:999px;padding:.2rem .55rem;font-size:.68rem;font-weight:700}.zc-home-course-badge.badge-programming{background-color:color-mix(in srgb, var(--accent-primary) 15%, var(--bg-base));color:var(--accent-primary);border:1px solid color-mix(in srgb, var(--accent-primary) 35%, transparent)}.zc-home-course-badge.badge-database{background-color:var(--bg-base);color:var(--text-secondary);border:1px solid var(--border-color)}.zc-home-course-title{color:var(--text-primary);margin:0 0 .45rem;font-size:1.35rem;font-weight:700}.zc-home-course-desc{color:var(--text-secondary);flex:1;margin:0 0 1.4rem;font-size:.86rem;line-height:1.55}.zc-home-course-footer{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;width:100%;padding-top:.9rem;font-size:.8rem;display:flex}.zc-home-course-structure{font-family:var(--font-mono,monospace);color:var(--text-tertiary);font-size:.74rem}.zc-home-course-cta{color:var(--accent-primary);align-items:center;gap:.35rem;font-weight:600;display:inline-flex}.zc-cmd-course-dropdown-wrap{flex-shrink:0;position:relative}.zc-cmd-course-trigger{background-color:var(--bg-base);border:1px solid var(--border-color);height:32px;color:var(--text-primary);font-family:var(--font-mono,monospace);cursor:pointer;white-space:nowrap;border-radius:8px;align-items:center;gap:.38rem;padding:0 .65rem;font-weight:700;transition:all .16s;display:inline-flex}.zc-cmd-course-trigger:hover,.zc-cmd-course-trigger.active{border-color:color-mix(in srgb, var(--accent-primary) 42%, var(--border-color));color:var(--accent-primary);background-color:color-mix(in srgb, var(--accent-primary) 10%, var(--bg-base))}.zc-cmd-chevron{opacity:.75;transition:transform .18s}.zc-cmd-chevron.open{transform:rotate(180deg)}.zc-cmd-course-menu{background-color:var(--bg-surface);border:1px solid var(--border-color);z-index:120;border-radius:10px;flex-direction:column;gap:.25rem;width:280px;padding:.4rem;display:flex;position:absolute;top:calc(100% + .45rem);left:0;box-shadow:0 16px 36px #00000061}.zc-cmd-course-option{width:100%;color:var(--text-primary);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;align-items:flex-start;gap:.65rem;padding:.6rem .65rem;transition:background-color .14s,border-color .14s;display:flex}.zc-cmd-course-option:hover{background-color:var(--bg-surface-elevated)}.zc-cmd-course-option.selected{background-color:color-mix(in srgb, var(--accent-primary) 12%, var(--bg-base));border-color:color-mix(in srgb, var(--accent-primary) 35%, transparent)}.zc-cmd-course-opt-icon{background-color:var(--bg-base);width:30px;height:30px;color:var(--accent-primary);border:1px solid var(--border-color);border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;display:inline-flex}.zc-cmd-course-opt-body{flex-direction:column;flex:1;gap:.15rem;min-width:0;display:flex}.zc-cmd-course-opt-title{color:var(--text-primary);align-items:center;gap:.4rem;font-size:.84rem;font-weight:700;display:flex}.zc-cmd-course-opt-tag{font-family:var(--font-mono,monospace);border-radius:4px;padding:.08rem .35rem;font-size:.6rem;font-weight:700}.zc-cmd-course-opt-tag.tag-programming{background-color:color-mix(in srgb, var(--accent-primary) 16%, var(--bg-base));color:var(--accent-primary)}.zc-cmd-course-opt-tag.tag-database{background-color:var(--bg-base);color:var(--text-secondary);border:1px solid var(--border-color)}.zc-cmd-course-opt-desc{color:var(--text-secondary);white-space:normal;font-size:.72rem;line-height:1.35}.zc-cmd-course-check{color:var(--accent-primary);flex-shrink:0;margin-top:4px}.zc-search-path-group{margin-bottom:.45rem}.zc-search-path-group:last-child{margin-bottom:0}.zc-search-group-header{font-family:var(--font-mono,monospace);letter-spacing:.03em;color:var(--accent-primary);border-bottom:1px dashed color-mix(in srgb, var(--border-color) 70%, transparent);justify-content:space-between;align-items:center;margin-bottom:.2rem;padding:.35rem .65rem .25rem;font-size:.7rem;font-weight:700;display:flex}.zc-search-group-count{background-color:var(--bg-base);border:1px solid var(--border-color);color:var(--text-tertiary);border-radius:999px;padding:.05rem .38rem;font-size:.65rem}.zc-search-highlight{background-color:color-mix(in srgb, var(--accent-primary) 26%, transparent);color:var(--text-primary);border-radius:3px;padding:0 2px}.zc-cmd-badge-scaffold{background-color:var(--bg-base);border:1px dashed var(--border-color);color:var(--text-secondary)}.zc-db-empty-card{background-color:var(--bg-surface);border:1px dashed color-mix(in srgb, var(--accent-primary) 38%, var(--border-color));text-align:center;border-radius:14px;flex-direction:column;align-items:center;gap:.75rem;max-width:680px;margin:2rem auto;padding:2.75rem 2rem;display:flex}.zc-db-empty-icon-ring{background-color:color-mix(in srgb, var(--accent-primary) 14%, var(--bg-base));width:56px;height:56px;color:var(--accent-primary);border:1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);border-radius:14px;justify-content:center;align-items:center;margin-bottom:.25rem;display:flex}.zc-db-empty-path{font-family:var(--font-mono,monospace);color:var(--accent-primary);background-color:var(--bg-base);border:1px solid var(--border-color);border-radius:999px;padding:.22rem .65rem;font-size:.78rem;font-weight:700}.zc-db-empty-title{color:var(--text-primary);margin:.25rem 0 0;font-size:1.35rem;font-weight:700}.zc-db-empty-status{color:var(--text-secondary);margin:0;font-size:.92rem}.zc-db-scaffold-pill{background-color:var(--bg-base);border:1px solid var(--border-color);color:var(--text-tertiary);font-family:var(--font-mono,monospace);border-radius:8px;align-items:center;gap:.45rem;margin-top:.25rem;padding:.35rem .75rem;font-size:.75rem;display:inline-flex}.zc-db-empty-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:.75rem;margin-top:1rem;display:flex}.zc-boot-transition-overlay{z-index:10000;background-color:color-mix(in srgb, var(--bg-base) 96%, transparent);pointer-events:none;will-change:opacity;justify-content:center;align-items:center;animation:.28s cubic-bezier(.16,1,.3,1) forwards zcBootOverlayLifecycle;display:flex;position:fixed;inset:0}.zc-boot-logo-stage{color:var(--accent-primary);will-change:opacity, transform;flex-direction:column;align-items:center;gap:1.15rem;animation:.28s cubic-bezier(.16,1,.3,1) forwards zcBootStagePulse;display:flex}.zc-boot-svg{width:210px;height:115px;filter:drop-shadow(0 0 5px color-mix(in srgb, var(--accent-primary) 40%, transparent));will-change:opacity, transform;overflow:visible}.zc-boot-stroke{stroke:var(--accent-primary);stroke-width:7.5px;shape-rendering:geometricprecision}.zc-boot-left-bracket{stroke:var(--accent-primary);will-change:opacity, transform;animation:.18s cubic-bezier(.16,1,.3,1) forwards zcBootLeftBracket}.zc-boot-right-bracket{stroke:var(--accent-primary);will-change:opacity, transform;animation:.18s cubic-bezier(.16,1,.3,1) forwards zcBootRightBracket}.zc-boot-zero-ring{stroke-dasharray:152;stroke-dashoffset:152px;stroke:var(--accent-primary);transform-origin:110px 60px;will-change:opacity, transform, stroke-dashoffset;animation:.18s cubic-bezier(.16,1,.3,1) forwards zcBootZeroRing}.zc-boot-zero-slash{stroke-dasharray:82;stroke-dashoffset:82px;stroke:var(--accent-primary);will-change:opacity, stroke-dashoffset;animation:.16s cubic-bezier(.16,1,.3,1) 25ms forwards zcBootZeroSlash}.zc-boot-meta{font-family:var(--font-mono,monospace);-webkit-user-select:none;user-select:none;flex-direction:column;align-items:center;gap:.35rem;display:flex}.zc-boot-brand{letter-spacing:.16em;text-transform:lowercase;color:var(--text-primary);text-shadow:0 0 6px color-mix(in srgb, var(--accent-primary) 25%, transparent);will-change:opacity, transform;font-size:1.3rem;font-weight:800;animation:.18s cubic-bezier(.16,1,.3,1) forwards zcBootTextReveal}.zc-boot-target{color:var(--accent-primary);letter-spacing:.08em;font-size:.84rem;font-weight:700;font-family:var(--font-mono,monospace);opacity:.95;text-shadow:0 0 5px color-mix(in srgb, var(--accent-primary) 35%, transparent);will-change:opacity, transform;align-items:center;gap:.35rem;animation:.18s cubic-bezier(.16,1,.3,1) 20ms forwards zcBootTextReveal;display:inline-flex}@keyframes zcBootTextReveal{0%{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translate(0,0)}}@keyframes zcBootLeftBracket{0%{opacity:0;transform:translate(-14px)}to{opacity:1;transform:translate(0,0)}}@keyframes zcBootRightBracket{0%{opacity:0;transform:translate(14px)}to{opacity:1;transform:translate(0,0)}}@keyframes zcBootZeroRing{0%{opacity:0;stroke-dashoffset:152px;transform:scale(.88)}35%{opacity:1}to{opacity:1;stroke-dashoffset:0;transform:scale(1)}}@keyframes zcBootZeroSlash{0%{opacity:0;stroke-dashoffset:82px}to{opacity:1;stroke-dashoffset:0}}@keyframes zcBootStagePulse{0%{opacity:0;transform:translateY(4px)scale(.98)}25%{opacity:1;transform:translate(0,0)scale(1)}72%{opacity:1;transform:translate(0,0)scale(1)}to{opacity:0;transform:translateY(-2px)scale(1.01)}}@keyframes zcBootOverlayLifecycle{0%{opacity:0}18%{opacity:1}72%{opacity:1}to{opacity:0}}.zc-fast-content-transition{animation:.165s cubic-bezier(.16,1,.3,1) zcFastContentReveal}@keyframes zcFastContentReveal{0%{opacity:.55}to{opacity:1}}@media (prefers-reduced-motion:reduce){.zc-boot-transition-overlay,.zc-boot-logo-stage,.zc-boot-left-bracket,.zc-boot-right-bracket,.zc-boot-zero-ring,.zc-boot-zero-slash,.zc-boot-brand,.zc-boot-target,.zc-fast-content-transition{transition:none!important;animation:none!important}}@media (width<=768px){.zc-minimal-home{gap:1.35rem;padding:3vh 0 2.5rem}.zc-home-heading{font-size:1.35rem}.zc-home-courses-grid{grid-template-columns:1fr}.zc-cmd-course-menu{width:250px}}.zc-command-header.global-header{z-index:100;background-color:color-mix(in srgb, var(--bg-surface) 92%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);box-sizing:border-box;flex-flow:row;justify-content:space-between;align-items:center;gap:.75rem;width:100%;height:50px;min-height:50px;max-height:50px;padding:0 1rem;display:flex;position:sticky;top:0;overflow:clip visible}.zc-command-header .zc-hdr-brand,.zc-command-header .zc-hdr-nav,.zc-command-header .zc-hdr-utilities{box-sizing:border-box;flex-flow:row;flex:none;align-items:center;min-width:max-content;display:flex}.zc-command-header .zc-home-logo-link{color:inherit;flex-shrink:0;align-items:center;text-decoration:none;display:inline-flex}.zc-command-header .header-title{letter-spacing:-.02em;color:var(--text-primary);white-space:nowrap;align-items:center;gap:.38rem;font-size:1.15rem;font-weight:700;line-height:1;display:inline-flex}.zc-command-header .zc-brand-logo-img{object-fit:contain;border-radius:5px;flex-shrink:0;width:22px;height:22px}.zc-command-header .zc-brand-wordmark{white-space:nowrap;display:inline-block}.zc-command-header .zc-hdr-nav{gap:.35rem;padding:0}.zc-cmd-divider{color:var(--text-tertiary);font-family:var(--font-mono,monospace);opacity:.55;-webkit-user-select:none;user-select:none;flex-shrink:0;font-size:.82rem}.zc-cmd-group{background-color:var(--bg-base);border:1px solid var(--border-color);border-radius:7px;flex-shrink:0;align-items:center;gap:.2rem;padding:2px;display:inline-flex}.zc-cmd-course-trigger{border-radius:6px;flex-shrink:0;gap:.35rem;height:30px;padding:0 .6rem;font-size:.76rem}.zc-cmd-pill,.zc-cmd-tool-btn{height:26px;color:var(--text-secondary);cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none;background:0 0;border:1px solid #0000;border-radius:5px;flex-shrink:0;align-items:center;gap:.32rem;padding:0 .56rem;font-size:.76rem;font-weight:600;transition:background-color .15s,color .15s,border-color .15s;display:inline-flex}.zc-cmd-pill:hover,.zc-cmd-tool-btn:hover{color:var(--text-primary);background-color:var(--bg-surface-elevated)}.zc-cmd-pill.active,.zc-cmd-tool-btn.active{color:var(--accent-primary);background-color:color-mix(in srgb, var(--accent-primary) 14%, var(--bg-surface));border-color:color-mix(in srgb, var(--accent-primary) 38%, transparent);box-shadow:0 1px 6px color-mix(in srgb, var(--accent-primary) 18%, transparent)}.zc-term-full{display:inline}.zc-term-short{display:none}.zc-cmd-tools-expanded{flex-shrink:0;align-items:center;gap:2px;display:inline-flex}.zc-cmd-tools-collapsed{flex-shrink:0;align-items:center;display:none}.zc-cmd-tool-label-full{display:inline}.zc-cmd-tool-label-short{display:none}.zc-cmd-study-dropdown-trigger{height:26px;min-height:26px;color:var(--text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap;background:0 0;border:1px solid #0000;border-radius:5px;flex-shrink:0;align-items:center;gap:.34rem;padding:0 .55rem;font-size:.76rem;font-weight:600;transition:background-color .15s,color .15s,border-color .15s;display:inline-flex}.zc-cmd-study-dropdown-trigger:hover{background:var(--bg-surface-elevated);color:var(--text-primary)}.zc-cmd-study-dropdown-trigger.active{background:color-mix(in srgb, var(--accent-primary) 14%, var(--bg-surface));color:var(--accent-primary);border-color:color-mix(in srgb, var(--accent-primary) 38%, transparent)}.zc-cmd-study-trigger-label{font-size:.76rem;display:inline}.zc-command-header .dashboard-user-controls{flex-flow:row;flex-shrink:0;align-items:center;gap:.38rem;min-width:max-content;display:inline-flex}.zc-feedback-slot{flex-shrink:0;align-items:center;display:inline-flex}.zc-cmd-quickjump-btn{border:1px solid var(--border-color);background-color:var(--bg-base);min-width:148px;height:30px;color:var(--text-secondary);cursor:pointer;white-space:nowrap;box-sizing:border-box;-webkit-user-select:none;user-select:none;border-radius:6px;flex-shrink:0;align-items:center;gap:.42rem;padding:0 .55rem;font-size:.76rem;font-weight:500;transition:border-color .15s,color .15s,background-color .15s;display:inline-flex}.zc-cmd-quickjump-btn:hover{border-color:var(--accent-primary);color:var(--text-primary);background-color:var(--bg-hover)}.zc-cmd-quickjump-text{color:var(--text-secondary);white-space:nowrap;font-size:.76rem;display:inline}.zc-cmd-kbd{font-family:var(--font-mono,monospace);background-color:var(--bg-surface);border:1px solid var(--border-color);color:var(--text-tertiary);white-space:nowrap;pointer-events:none;border-radius:4px;flex-shrink:0;margin-left:auto;padding:.14rem .32rem;font-size:.62rem;line-height:1}.zc-command-header .zc-utility-btn{background:var(--bg-base);border:1px solid var(--border-color);width:30px;min-width:30px;height:30px;color:var(--text-secondary);cursor:pointer;box-sizing:border-box;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:background-color .15s,color .15s,border-color .15s;display:inline-flex;position:relative;overflow:visible;transform:none}.zc-command-header .zc-utility-btn:hover{background:var(--bg-hover);color:var(--text-primary);border-color:var(--border-hover);transform:none}.zc-command-header .zc-utility-btn:active{transform:none}.zc-command-header .zc-utility-btn svg{flex-shrink:0;width:14px;height:14px}.zc-command-header .header-btn-label,.zc-command-header .zc-header-more-btn{display:none}.zc-utility-badge{background-color:var(--status-error,#ef4444);color:#fff;border:2px solid var(--bg-surface);z-index:10;pointer-events:none;border-radius:9999px;justify-content:center;align-items:center;min-width:16px;height:16px;padding:0 4px;font-size:.62rem;font-weight:700;line-height:1;display:flex;position:absolute;top:-4px;right:-4px;box-shadow:0 2px 5px #0000004d}.zc-command-header .dashboard-user-profile{-webkit-user-select:none;user-select:none;flex-direction:column;flex-shrink:0;justify-content:center;align-items:flex-start;gap:2px;padding:0 .4rem;line-height:1;display:inline-flex}.zc-command-header .zc-profile-username{color:var(--text-primary);white-space:nowrap;font-size:.8125rem;font-weight:600;line-height:1.1}.zc-command-header .zc-profile-status-wrap{white-space:nowrap;align-items:center;gap:5px;line-height:1;display:inline-flex}.zc-command-header .zc-profile-code-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.zc-command-header .zc-profile-code-text{white-space:nowrap;letter-spacing:normal;font-family:inherit;font-size:.75rem;font-weight:500;line-height:1}.zc-cmd-pill:focus-visible,.zc-cmd-tool-btn:focus-visible,.zc-cmd-quickjump-btn:focus-visible,.zc-cmd-course-trigger:focus-visible,.zc-command-header .header-btn:focus-visible{outline:2px solid var(--accent-primary)!important;outline-offset:2px!important;box-shadow:0 0 0 3px color-mix(in srgb, var(--accent-primary) 30%, transparent)!important}.zc-command-header[data-h-tight]{gap:.5rem;padding:0 .75rem}.zc-command-header[data-h-tight] .zc-hdr-nav{gap:.25rem}.zc-command-header[data-h-tight] .zc-cmd-pill,.zc-command-header[data-h-tight] .zc-cmd-tool-btn{padding:0 .46rem}.zc-command-header[data-h-tight] .zc-cmd-kbd{display:none}.zc-command-header[data-h-tight] .zc-cmd-quickjump-btn{min-width:92px;padding:0 .5rem}.zc-command-header[data-h-tight] .dashboard-user-controls{gap:.3rem}.zc-command-header[data-h-study] .zc-cmd-tools-expanded{display:none}.zc-command-header[data-h-study] .zc-cmd-tools-collapsed{display:inline-flex}.zc-command-header[data-h-search] .zc-cmd-quickjump-text,.zc-command-header[data-h-search] .zc-cmd-kbd{display:none}.zc-command-header[data-h-search] .zc-cmd-quickjump-btn{justify-content:center;width:30px;min-width:30px;max-width:30px;height:30px;padding:0}.zc-command-header[data-h-narrow]{gap:.38rem;padding:0 .55rem}.zc-command-header[data-h-narrow] .zc-cmd-divider,.zc-command-header[data-h-narrow] .header-divider,.zc-command-header[data-h-narrow] .zc-profile-username,.zc-command-header[data-h-narrow] .zc-term-full{display:none}.zc-command-header[data-h-narrow] .zc-term-short{display:inline}.zc-command-header[data-h-narrow] .dashboard-user-profile{padding:0 .2rem}.zc-command-header[data-h-minimal]{gap:.3rem;padding:0 .4rem}.zc-command-header[data-h-minimal] .header-title{gap:.24rem;font-size:.96rem}.zc-command-header[data-h-minimal] .zc-brand-logo-img{width:19px;height:19px}.zc-command-header[data-h-minimal] .zc-hdr-nav{gap:.2rem}.zc-command-header[data-h-minimal] .zc-util-secondary,.zc-command-header[data-h-minimal] .zc-cmd-course-name,.zc-command-header[data-h-minimal] .zc-cmd-study-trigger-label,.zc-command-header[data-h-minimal] .zc-profile-code-text{display:none}.zc-command-header[data-h-minimal] .zc-header-more-btn{display:inline-flex}.zc-command-header[data-h-minimal] .zc-cmd-course-trigger{gap:.16rem;height:28px;padding:0 .36rem}.zc-command-header[data-h-minimal] .zc-cmd-study-dropdown-trigger{gap:.16rem;padding:0 .34rem}.zc-command-header[data-h-minimal] .zc-cmd-pill{padding:0 .34rem;font-size:.72rem}.zc-command-header[data-h-minimal] .dashboard-user-controls{gap:.22rem}.zc-command-header[data-h-minimal] .dashboard-user-profile{padding:0 .12rem}.zc-command-header[data-h-micro]{gap:.25rem;padding:0 .35rem}.zc-command-header[data-h-micro] .zc-brand-wordmark{display:none}.zc-command-header[data-h-micro] .zc-brand-logo-img{width:22px;height:22px}.zc-command-header[data-h-micro] .zc-utility-btn,.zc-command-header[data-h-micro] .zc-cmd-quickjump-btn{width:27px;min-width:27px;max-width:27px;height:27px}.zc-command-header[data-h-micro] .zc-cmd-course-trigger{height:27px;padding:0 .3rem}.zc-cmd-study-menu-portaled{background:var(--bg-surface);border:1px solid var(--border-color);box-sizing:border-box;border-radius:8px;flex-direction:column;gap:3px;padding:5px;animation:.15s cubic-bezier(.16,1,.3,1) zcScaleIn;display:flex;box-shadow:0 10px 25px -5px #00000073,0 8px 10px -6px #0000004d}.zc-cmd-study-option{width:100%;color:var(--text-primary);cursor:pointer;text-align:left;box-sizing:border-box;background:0 0;border:1px solid #0000;border-radius:6px;align-items:center;gap:.65rem;padding:.45rem .65rem;transition:all .14s;display:flex}.zc-cmd-study-option:hover{background:var(--bg-hover);border-color:var(--border-color)}.zc-cmd-study-option.selected{background:color-mix(in srgb, var(--accent-primary) 12%, var(--bg-base));border-color:color-mix(in srgb, var(--accent-primary) 30%, transparent)}.zc-cmd-study-opt-icon{color:var(--text-secondary);flex-shrink:0;justify-content:center;align-items:center;display:flex}.zc-cmd-study-option.selected .zc-cmd-study-opt-icon{color:var(--accent-primary)}.zc-cmd-study-opt-body{flex-direction:column;flex:1;gap:.1rem;min-width:0;display:flex}.zc-cmd-study-opt-title{color:var(--text-primary);font-size:.8rem;font-weight:600;line-height:1.2}.zc-cmd-study-opt-desc{color:var(--text-tertiary);font-size:.68rem;line-height:1.2}.zc-cmd-study-check{color:var(--accent-primary);flex-shrink:0}.zc-about-overlay{z-index:10000;-webkit-backdrop-filter:blur(8px);box-sizing:border-box;background-color:#000000b8;justify-content:center;align-items:center;padding:1rem;animation:.18s cubic-bezier(.16,1,.3,1) zcAboutFadeIn;display:flex;position:fixed;inset:0}@keyframes zcAboutFadeIn{0%{opacity:0}to{opacity:1}}.zc-about-modal{background-color:var(--bg-surface);border:1px solid var(--border-color);width:100%;max-width:480px;box-shadow:0 20px 48px #00000080, 0 0 0 1px color-mix(in srgb, var(--accent-primary) 15%, transparent);box-sizing:border-box;border-radius:12px;flex-direction:column;animation:.22s cubic-bezier(.16,1,.3,1) zcAboutSlideUp;display:flex;position:relative;overflow:hidden}@keyframes zcAboutSlideUp{0%{opacity:0;transform:translateY(12px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.zc-about-header{border-bottom:1px solid var(--border-color);background-color:var(--bg-surface);flex-shrink:0;justify-content:space-between;align-items:center;gap:.75rem;padding:.9rem 1.15rem;display:flex}.zc-about-brand-wrapper{align-items:center;gap:.65rem;min-width:0;display:flex}.zc-about-prompt-icon{background-color:color-mix(in srgb, var(--accent-primary) 12%, var(--bg-base));border:1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);width:28px;height:28px;color:var(--accent-primary);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.zc-about-title-group{flex-direction:column;gap:.1rem;min-width:0;display:flex}.zc-about-title{color:var(--text-primary);letter-spacing:-.01em;margin:0;font-size:1.05rem;font-weight:700;line-height:1.2}.zc-about-path{font-family:var(--font-mono,monospace);color:var(--text-tertiary);letter-spacing:.02em;font-size:.72rem}.zc-about-close-btn{border:1px solid var(--border-color);background:var(--bg-surface-elevated);width:28px;height:28px;color:var(--text-secondary);cursor:pointer;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;padding:0;transition:all .15s;display:flex}.zc-about-close-btn:hover{background:var(--bg-hover,var(--border-color));color:var(--text-primary);border-color:color-mix(in srgb, var(--accent-primary) 40%, var(--border-color))}.zc-about-body{box-sizing:border-box;flex-direction:column;gap:1.15rem;padding:1.15rem;display:flex;overflow-y:auto}.zc-about-section{flex-direction:column;display:flex}.zc-about-section-header{align-items:center;gap:.35rem;margin-bottom:.5rem;display:flex}.zc-about-section-tag{font-family:var(--font-mono,monospace);color:var(--accent-primary);letter-spacing:.05em;font-size:.72rem;font-weight:800}.zc-about-section-sep{font-family:var(--font-mono,monospace);color:var(--text-tertiary);font-size:.72rem}.zc-about-section-heading{font-family:var(--font-mono,monospace);text-transform:uppercase;letter-spacing:.08em;color:var(--text-secondary);margin:0;font-size:.76rem;font-weight:700}.zc-about-desc{color:var(--text-primary);margin:0 0 .75rem;font-size:.88rem;line-height:1.5}.zc-about-courses-list{background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);border-radius:8px;flex-direction:column;gap:.45rem;padding:.65rem .85rem;display:flex}.zc-about-course-item{align-items:center;gap:.5rem;font-size:.84rem;display:flex}.zc-about-course-status-dot{border-radius:50%;flex-shrink:0;width:7px;height:7px}.zc-about-course-status-dot.available{background-color:var(--accent-primary);box-shadow:0 0 6px var(--accent-primary)}.zc-about-course-status-dot.dev{background-color:var(--text-tertiary)}.zc-about-course-name{color:var(--text-primary);font-weight:600}.zc-about-course-sep{color:var(--text-tertiary);font-size:.8rem}.zc-about-course-badge{font-family:var(--font-mono,monospace);border-radius:4px;padding:.1rem .45rem;font-size:.7rem;font-weight:600}.zc-about-course-badge.available{background-color:color-mix(in srgb, var(--accent-primary) 12%, transparent);border:1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);color:var(--accent-primary)}.zc-about-course-badge.dev{background-color:color-mix(in srgb, var(--text-tertiary) 12%, transparent);border:1px solid color-mix(in srgb, var(--text-tertiary) 25%, transparent);color:var(--text-tertiary)}.zc-about-guide-list{flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.zc-about-guide-item{background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:8px;align-items:baseline;gap:.65rem;padding:.55rem .75rem;font-size:.84rem;line-height:1.45;display:flex}.zc-about-guide-num{font-family:var(--font-mono,monospace);color:var(--accent-primary);background-color:color-mix(in srgb, var(--accent-primary) 12%, transparent);border:1px solid color-mix(in srgb, var(--accent-primary) 25%, transparent);border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:18px;height:18px;font-size:.72rem;font-weight:700;display:inline-flex;transform:translateY(1px)}.zc-about-guide-content{flex:1}.zc-about-guide-content strong{color:var(--text-primary);font-weight:600}.zc-about-guide-sep{color:var(--text-tertiary);margin:0 .15rem}.zc-about-footer{border-top:1px solid var(--border-color);background-color:var(--bg-surface-elevated);flex-shrink:0;justify-content:space-between;align-items:center;gap:.75rem;padding:.75rem 1.15rem;display:flex}.zc-about-kbd-hint{color:var(--text-tertiary);align-items:center;gap:.35rem;font-size:.74rem;display:inline-flex}.zc-about-footer-kbd{font-family:var(--font-mono,monospace);background-color:var(--bg-surface);border:1px solid var(--border-color);color:var(--text-secondary);border-bottom-width:2px;border-radius:4px;padding:.1rem .35rem;font-size:.68rem;font-weight:700}.zc-about-github-btn{border:1px solid var(--border-color);background-color:var(--bg-surface);color:var(--text-secondary);border-radius:6px;align-items:center;gap:.45rem;padding:.38rem .75rem;font-size:.8rem;font-weight:550;text-decoration:none;transition:all .15s;display:inline-flex}.zc-about-github-btn:hover{color:var(--accent-primary);border-color:color-mix(in srgb, var(--accent-primary) 40%, var(--border-color));background-color:color-mix(in srgb, var(--accent-primary) 8%, var(--bg-surface))}.zc-about-github-btn svg{color:currentColor;flex-shrink:0}.zc-about-dismiss-btn{border:1px solid var(--border-color);background-color:var(--bg-surface);color:var(--text-primary);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;padding:.4rem 1.1rem;font-size:.82rem;font-weight:600;transition:all .15s;display:inline-flex}.zc-about-dismiss-btn:hover{background-color:var(--accent-primary);color:var(--text-on-accent,#fff);border-color:var(--accent-primary);box-shadow:0 0 10px color-mix(in srgb, var(--accent-primary) 35%, transparent)}@media (width<=480px){.zc-about-overlay{padding:.5rem}.zc-about-modal{border-radius:10px;max-height:92vh}.zc-about-header{padding:.75rem .9rem}.zc-about-body{gap:.95rem;padding:.85rem}.zc-about-footer{padding:.65rem .85rem}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.4"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}