/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
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var(--tw-translate-y)}.\[\&\>svg\]\:text-current>svg{color:currentColor}.\[\&\>svg\]\:text-muted-foreground>svg{color:var(--muted-foreground)}.group-has-data-\[size\=lg\]\/avatar-group\:\[\&\>svg\]\:size-5:is(:where(.group\/avatar-group):has([data-size=lg]) *)>svg{width:calc(var(--spacing) * 5);height:calc(var(--spacing) * 5)}.group-has-data-\[size\=sm\]\/avatar-group\:\[\&\>svg\]\:size-3:is(:where(.group\/avatar-group):has([data-size=sm]) *)>svg{width:calc(var(--spacing) * 3);height:calc(var(--spacing) * 3)}.group-data-\[size\=default\]\/avatar\:\[\&\>svg\]\:size-2:is(:where(.group\/avatar)[data-size=default] *)>svg,.group-data-\[size\=lg\]\/avatar\:\[\&\>svg\]\:size-2:is(:where(.group\/avatar)[data-size=lg] *)>svg{width:calc(var(--spacing) * 2);height:calc(var(--spacing) * 2)}.group-data-\[size\=sm\]\/avatar\:\[\&\>svg\]\:hidden:is(:where(.group\/avatar)[data-size=sm] *)>svg{display:none}.\[\&\>svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-3\.5>svg:not([class*=size-]){width:calc(var(--spacing) * 3.5);height:calc(var(--spacing) * 3.5)}.\[\&\>svg\:not\(\[class\*\=\'size-\'\]\)\]\:size-4>svg:not([class*=size-]){width:calc(var(--spacing) * 4);height:calc(var(--spacing) * 4)}.\[\&\>tr\]\:last\:border-b-0>tr:last-child{border-bottom-style:var(--tw-border-style);border-bottom-width:0}.\[\&\[aria-orientation\=horizontal\]\>div\]\:rotate-90[aria-orientation=horizontal]>div{rotate:90deg}.\[\&\[data-state\=open\]\>svg\]\:rotate-180[data-state=open]>svg{rotate:180deg}[data-side=left][data-collapsible=offcanvas] .\[\[data-side\=left\]\[data-collapsible\=offcanvas\]_\&\]\:-right-2{right:calc(var(--spacing) * -2)}[data-side=left][data-state=collapsed] .\[\[data-side\=left\]\[data-state\=collapsed\]_\&\]\:cursor-e-resize{cursor:e-resize}[data-side=right][data-collapsible=offcanvas] .\[\[data-side\=right\]\[data-collapsible\=offcanvas\]_\&\]\:-left-2{left:calc(var(--spacing) * -2)}[data-side=right][data-state=collapsed] .\[\[data-side\=right\]\[data-state\=collapsed\]_\&\]\:cursor-w-resize{cursor:w-resize}[data-slot=card-content] .\[\[data-slot\=card-content\]_\&\]\:bg-transparent,[data-slot=popover-content] .\[\[data-slot\=popover-content\]_\&\]\:bg-transparent{background-color:#0000}[data-slot=tooltip-content] .\[\[data-slot\=tooltip-content\]_\&\]\:bg-background\/20{background-color:var(--background)}@supports (color:color-mix(in lab, red, red)){[data-slot=tooltip-content] .\[\[data-slot\=tooltip-content\]_\&\]\:bg-background\/20{background-color:color-mix(in oklab, var(--background) 20%, transparent)}}[data-slot=tooltip-content] .\[\[data-slot\=tooltip-content\]_\&\]\:text-background{color:var(--background)}@media (prefers-color-scheme:dark){[data-slot=tooltip-content] .dark\:\[\[data-slot\=tooltip-content\]_\&\]\:bg-background\/10{background-color:var(--background)}@supports (color:color-mix(in lab, red, red)){[data-slot=tooltip-content] .dark\:\[\[data-slot\=tooltip-content\]_\&\]\:bg-background\/10{background-color:color-mix(in oklab, var(--background) 10%, transparent)}}}[data-variant=legend]+.\[\[data-variant\=legend\]\+\&\]\:-mt-1\.5{margin-top:calc(var(--spacing) * -1.5)}@media (hover:hover){a.\[a\&\]\:hover\:bg-accent:hover{background-color:var(--accent)}a.\[a\&\]\:hover\:bg-destructive\/90:hover{background-color:var(--destructive)}@supports (color:color-mix(in lab, red, red)){a.\[a\&\]\:hover\:bg-destructive\/90:hover{background-color:color-mix(in oklab, var(--destructive) 90%, transparent)}}a.\[a\&\]\:hover\:bg-primary\/90:hover{background-color:var(--primary)}@supports (color:color-mix(in lab, red, red)){a.\[a\&\]\:hover\:bg-primary\/90:hover{background-color:color-mix(in oklab, var(--primary) 90%, transparent)}}a.\[a\&\]\:hover\:bg-secondary\/90:hover{background-color:var(--secondary)}@supports (color:color-mix(in lab, red, red)){a.\[a\&\]\:hover\:bg-secondary\/90:hover{background-color:color-mix(in oklab, var(--secondary) 90%, transparent)}}a.\[a\&\]\:hover\:text-accent-foreground:hover{color:var(--accent-foreground)}a.\[a\&\]\:hover\:underline:hover{text-decoration-line:underline}}}@property --tw-animation-delay{syntax:"*";inherits:false;initial-value:0s}@property --tw-animation-direction{syntax:"*";inherits:false;initial-value:normal}@property --tw-animation-duration{syntax:"*";inherits:false}@property --tw-animation-fill-mode{syntax:"*";inherits:false;initial-value:none}@property --tw-animation-iteration-count{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-blur{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-opacity{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-rotate{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-scale{syntax:"*";inherits:false;initial-value:1}@property --tw-enter-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-enter-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-blur{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-opacity{syntax:"*";inherits:false;initial-value:1}@property --tw-exit-rotate{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-scale{syntax:"*";inherits:false;initial-value:1}@property --tw-exit-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-exit-translate-y{syntax:"*";inherits:false;initial-value:0}@property --scroll-fade-t{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-b{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-s{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-e{syntax:"<length-percentage>";inherits:false;initial-value:0}@property --scroll-fade-mask{syntax:"*";inherits:false}@property --shimmer-angle{syntax:"<angle>";inherits:true;initial-value:20deg}@property --shimmer-image{syntax:"*";inherits:false}@property --shimmer-text-fill{syntax:"*";inherits:false}@media (prefers-reduced-motion:reduce){.shimmer{-webkit-text-fill-color:currentColor;background-image:none;animation:none}}:root{--background:#f6f5ee;--foreground:#242629;--card:#fff;--card-foreground:#242629;--popover:#fff;--popover-foreground:#242629;--primary:#202124;--primary-foreground:#f7df1e;--secondary:#fff3ab;--secondary-foreground:#242629;--muted:#f0eee3;--muted-foreground:#62635d;--accent:#fff0a4;--accent-foreground:#242629;--destructive:#bd3c45;--border:#deded4;--input:#c9c9b9;--ring:#d5b900;--radius:.75rem}*{box-sizing:border-box}html{font-size:16px}body{background:var(--background);color:var(--foreground);margin:0;font-family:Arial,Helvetica,sans-serif}button{cursor:pointer}:is(button:focus-visible,textarea:focus-visible){outline-offset:2px;outline:3px solid #90a7ff}.app-shell{min-height:100vh}.topbar{border-bottom:1px solid var(--border);background:#fff;justify-content:space-between;align-items:center;gap:24px;height:74px;padding:0 clamp(18px,3.5vw,52px);display:flex}.brand{letter-spacing:-.02em;white-space:nowrap;align-items:center;gap:14px;font-size:17px;font-weight:800;display:flex}.brand-mark{color:#fff;width:49px;height:39px;font:700 15px var(--font-mono);letter-spacing:-.08em;background:#152542;border-radius:11px;place-items:center;display:grid}.header-progress{color:#54647d;white-space:nowrap;align-items:center;gap:15px;font-size:14px;font-weight:700;display:flex}.header-progress [data-slot=progress]{background:#e8eef9;width:114px;height:7px}.workspace{grid-template-columns:minmax(290px,340px) minmax(0,1fr);min-height:calc(100vh - 74px);display:grid}.navigation{color:#eaf0ff;background:#142441;padding:34px 20px 28px clamp(20px,3.3vw,50px)}.nav-intro{padding:6px 16px 20px 0}.eyebrow{color:#8ba8ff;letter-spacing:.16em;font-size:12px;font-weight:800;display:block}.nav-intro h1{letter-spacing:-.045em;margin:15px 0 12px;font-size:31px;line-height:1.13}.nav-intro p{color:#b4c1d8;max-width:260px;margin:0;font-size:15px;line-height:1.55}.nav-section{border-top:1px solid #344461;margin-top:17px;padding-top:17px}.nav-section-title{align-items:center;gap:12px;padding:0 10px 11px 0;display:flex}.nav-section-title>span{font:700 13px var(--font-mono);color:#91a8d2}.nav-section-title strong{font-size:15px;display:block}.nav-section-title small{color:#9cadc8;margin-top:3px;font-size:12px;display:block}.exercise-list{gap:3px;display:grid}.exercise-link{text-align:left;color:#c7d3e9;background:0 0;border:0;border-radius:11px;align-items:center;gap:10px;width:100%;min-height:43px;padding:10px;font-size:14px;font-weight:600;display:flex}.exercise-number{color:#96a8c5;font:700 12px var(--font-mono);place-items:center;min-width:25px;display:grid}.exercise-link.active .exercise-number{color:#3157dc}.exercise-number.done{color:#fff;background:#2fa982;border-radius:50%;width:23px;height:23px}.link-chevron{opacity:.5;flex:none;margin-left:auto}.nav-footnote{color:#9cadc8;margin:26px 12px 0 0;font-size:12px;line-height:1.5}.lesson{width:min(100%,1010px);margin:0 auto;padding:38px clamp(24px,5vw,82px) 50px}.lesson-topline{color:#697b98;justify-content:space-between;align-items:center;gap:15px;font-size:14px;font-weight:700;display:flex}.topic-label{color:#3157dc;font-family:var(--font-mono);background:#e3eaff;border-radius:100px;align-items:center;gap:8px;padding:8px 12px;display:inline-flex}.lesson-heading{justify-content:space-between;gap:20px;margin:32px 0 8px;display:flex}.eyebrow.dark{color:#4c68d9;font-size:12px}.lesson-heading h2{letter-spacing:-.045em;margin:10px 0 0;font-size:clamp(29px,3.5vw,42px);line-height:1.16}.large-number{font:800 clamp(48px,6vw,75px) var(--font-mono);color:#e4eaf5;line-height:.9}.prompt{color:#3d4c66;max-width:800px;margin:19px 0;font-size:17px;line-height:1.58}.example{background:#e8eefb;border-left:4px solid #617be9;border-radius:0 10px 10px 0;flex-wrap:wrap;align-items:center;gap:13px;margin-bottom:30px;padding:13px 17px;display:flex}.example span{letter-spacing:.12em;color:#4964c6;font-size:11px;font-weight:800}.example code{font:600 14px/1.5 var(--font-mono);overflow-wrap:anywhere}.editor-heading{justify-content:space-between;align-items:center;gap:15px;margin-bottom:12px;display:flex}.editor-heading>div{align-items:center;gap:11px;display:flex}.editor-icon{color:#3157dc;background:#dfe8ff;border-radius:10px;place-items:center;width:36px;height:36px;display:grid}.editor-heading h3{margin:0 0 3px;font-size:18px}.editor-heading p{color:#64728a;margin:0;font-size:13px}.file-name{font:13px var(--font-mono);color:#8190a7}.editor-wrap{background:#15223a;border-radius:14px;overflow:hidden;box-shadow:0 14px 32px #23365119}.editor-bar{color:#b9c6de;height:39px;font:12px var(--font-mono);border-bottom:1px solid #33415a;align-items:center;gap:8px;padding:0 18px;display:flex}.editor-dot{background:#edae67;border-radius:50%;width:8px;height:8px}.editor-hint{color:#8192b0;margin-left:auto}.code-input[data-slot=textarea]{width:100%;min-height:235px;max-height:550px;box-shadow:none;color:#e9f0ff;resize:vertical;font:15px/1.65 var(--font-mono);tab-size:2;white-space:pre;field-sizing:fixed;background:#15223a;border:0;border-radius:0;padding:20px 22px;display:block;overflow:auto}.code-input:focus-visible{outline-offset:-2px;outline:2px solid #6888ff}.actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;display:flex}.check-button{background:#3359e8;min-height:43px;padding:0 20px;font-size:14px;font-weight:800}.reset-button{color:#64738a;font-size:14px}.result{border-radius:12px;margin-top:18px;padding:17px 18px;font-size:15px;line-height:1.5}.result p{margin:4px 0 0}.result small{margin-top:8px;font-size:13px;display:block}.result-good{color:#116049;background:#e0f5ec;border:1px solid #a6dfc8;gap:12px;display:flex}.result-icon{color:#fff;background:#2d9b75;border-radius:50%;flex:none;place-items:center;width:27px;height:27px;display:grid}.result-wrong{color:#733747;background:#fff0ef;border:1px solid #f0bfc1}.result code{font-family:var(--font-mono);overflow-wrap:anywhere}.help-grid{grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;display:grid}.hint-card,.syntax-card{border:1px solid var(--border);background:#fff;border-radius:14px;min-width:0;padding:19px}.card-title{color:#8c5b0c;align-items:center;gap:9px;font-size:15px;display:flex}.hint-card p,.syntax-card p{color:#65748d;margin:11px 0 15px;font-size:14px;line-height:1.5}.hint-card ol{color:#44536f;margin:12px 0 15px 20px;padding:0;font-size:14px;line-height:1.5}.hint-card li+li{margin-top:8px}.hint-button{color:#5c471d;border-color:#e8d9b9;font-size:13px}.syntax-title{letter-spacing:.1em;color:#556b9d;font-size:11px;font-weight:800}.syntax-card pre{color:#344878;font:13px/1.5 var(--font-mono);background:#eef2f9;border-radius:8px;margin:12px 0 0;padding:13px;overflow:auto}.syntax-card p{margin-bottom:0}.lesson-bottom{justify-content:flex-end;margin-top:24px;display:flex}.next-button{color:#3157dc;border-color:#bac9f2;font-size:14px}@media (max-width:900px){.workspace{grid-template-columns:260px minmax(0,1fr)}.navigation{padding-left:18px}.lesson{padding-left:30px;padding-right:30px}.help-grid{grid-template-columns:1fr}}@media (max-width:700px){.topbar{height:65px;padding:0 16px}.brand{gap:9px;font-size:14px}.brand-mark{width:42px;height:36px;font-size:13px}.header-progress{gap:8px;font-size:12px}.header-progress [data-slot=progress]{width:50px}.workspace{display:block}.navigation{padding:18px 16px 14px}.nav-intro{padding:0 0 8px}.nav-intro h1{margin:6px 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