:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:#f7f7f2;--surface:#fff;--surface-soft:#f0f1ec;--surface-glass:#ffffffb8;--header-background:#f7f7f2e0;--ink:#111318;--ink-soft:#30343d;--muted:#656a74;--line:#dcded7;--line-strong:#c9ccc4;--accent:#4f5eea;--accent-dark:#3f4bd3;--accent-soft:#eceeff;--dark:#111318;--dark-soft:#1a1d24;--success:#177547;--primary-action:#111318;--primary-action-ink:#fff;--primary-action-hover:#3f4bd3;--primary-action-hover-ink:#fff;--selection:#ccd1ff;--focus-ring:#4f5eea7a;--success-surface:#e8f6ee;--success-line:#bcdac8;--success-text:#17633f;--warning-surface:#fff9e9;--warning-line:#e8d9b9;--warning-text:#785616;--danger-surface:#fff7f4;--danger-line:#ead4ce;--danger-text:#a44732;--code-background:#111318;--code-surface:#171a20;--code-line:#2b303b;--code-text:#eff1f5;--code-muted:#9ca3af;--code-success:#78dda1;--code-danger:#ff9b86;--code-accent:#aeb5ff;--radius-small:10px;--radius-medium:18px;--radius-large:28px;--shadow-small:0 8px 24px #1113180f;--shadow-large:0 24px 80px #1113181f;--font-sans:Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"SFMono-Regular", Consolas, "Liberation Mono", monospace}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--background:#0d0f14;--surface:#151820;--surface-soft:#1b1f29;--surface-glass:#151820c2;--header-background:#0d0f14e0;--ink:#f3f5f7;--ink-soft:#d6dae2;--muted:#9ca4b1;--line:#292f3a;--line-strong:#3a424f;--accent:#8f98ff;--accent-dark:#aeb5ff;--accent-soft:#222849;--success:#66d49a;--primary-action:#f3f5f7;--primary-action-ink:#0d0f14;--primary-action-hover:#8f98ff;--primary-action-hover-ink:#0d0f14;--selection:#3d477b;--focus-ring:#8f98ff94;--success-surface:#132a20;--success-line:#28553e;--success-text:#7bddaa;--warning-surface:#30250e;--warning-line:#655124;--warning-text:#f4cd75;--danger-surface:#321b18;--danger-line:#714037;--danger-text:#ff9f8a;--shadow-small:0 10px 30px #0000003d;--shadow-large:0 28px 90px #00000061}*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:96px}body{background:var(--background);color:var(--ink);font-family:var(--font-sans);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}button,input,textarea,select,summary{font:inherit}img,svg{max-width:100%;display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.035em;line-height:1.08}h1{font-size:clamp(3rem,7vw,6.2rem)}h2{font-size:clamp(2rem,4vw,3.6rem)}h3{font-size:1.25rem}code,pre{font-family:var(--font-mono)}::selection{background:var(--selection);color:var(--ink)}:focus-visible{outline:3px solid var(--focus-ring);outline-offset:3px}.skip-link{z-index:1000;background:var(--primary-action);color:var(--primary-action-ink);border-radius:8px;padding:10px 16px;transition:transform .16s;position:fixed;top:16px;left:16px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.shell{width:min(1180px,100% - 40px);margin-inline:auto}.narrow-shell{width:min(850px,100% - 40px)}.section{padding:104px 0}.section-soft{background:var(--surface-soft);border-block:1px solid var(--line)}.eyebrow{color:var(--accent-dark);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;font-size:.875rem;font-weight:800;line-height:1.35}.button{border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:12px 19px;font-weight:750;line-height:1.2;transition:transform .16s,background .16s,border-color .16s,color .16s;display:inline-flex}.button:hover{transform:translateY(-2px)}.button-primary,.button-small{background:var(--primary-action);color:var(--primary-action-ink)}.button-primary:hover,.button-small:hover{background:var(--primary-action-hover);color:var(--primary-action-hover-ink)}.button-secondary{border-color:var(--line-strong);background:var(--surface-glass);color:var(--ink)}.button:disabled{cursor:not-allowed;opacity:.45;transform:none}.button-secondary:hover{border-color:var(--ink);background:var(--surface)}.button-small{min-height:40px;padding:9px 16px;font-size:.9rem}.text-link{color:var(--ink);align-items:center;gap:7px;font-weight:780;display:inline-flex}.text-link:hover{color:var(--accent-dark)}.site-header{z-index:100;border-bottom:1px solid var(--line);background:var(--header-background);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:28px;min-height:74px;display:flex}.brand-link{flex:none}.brand-mark-wrap{align-items:center;gap:11px;display:inline-flex}.brand-mark{background:var(--code-background);width:40px;height:40px;color:var(--code-text);font-family:var(--font-mono);letter-spacing:-.16em;border-radius:12px;justify-content:center;align-items:center;gap:1px;font-size:.72rem;font-weight:800;display:inline-flex;box-shadow:inset 0 0 0 1px #ffffff1f}.brand-mark-slash{color:#8a94ff}.brand-copy{flex-direction:column;line-height:1.05;display:flex}.brand-copy strong{letter-spacing:-.02em;font-size:.97rem}.brand-copy small{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin-top:5px;font-size:.66rem;font-weight:700}.desktop-nav{align-items:center;gap:28px;margin-left:auto;display:flex}.desktop-nav a{color:var(--ink-soft);font-size:.92rem;font-weight:680}.desktop-nav a:hover{color:var(--accent-dark)}.header-actions{align-items:center;gap:10px;display:flex}.theme-toggle{cursor:pointer;border:1px solid var(--line-strong);background:var(--surface-glass);width:42px;height:42px;color:var(--ink-soft);border-radius:50%;flex:none;place-items:center;transition:border-color .16s,background .16s,color .16s,transform .16s;display:inline-grid;position:relative;overflow:hidden}.theme-toggle:hover{border-color:var(--accent);background:var(--surface);color:var(--accent-dark);transform:rotate(5deg)}.theme-icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:19px;height:19px;transition:opacity .18s,transform .22s;position:absolute}.theme-icon-moon{opacity:0;transform:rotate(-40deg)scale(.55)}:root[data-theme=dark] .theme-icon-sun{opacity:0;transform:rotate(45deg)scale(.55)}:root[data-theme=dark] .theme-icon-moon{opacity:1;transform:rotate(0)scale(1)}.mobile-menu{display:none;position:relative}.mobile-menu summary{cursor:pointer;border:1px solid var(--line-strong);background:var(--surface);text-align:center;border-radius:999px;min-width:58px;padding:8px 12px;font-size:.86rem;font-weight:750;list-style:none}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu nav{border:1px solid var(--line);background:var(--surface);min-width:190px;box-shadow:var(--shadow-large);border-radius:16px;padding:10px;display:grid;position:absolute;top:calc(100% + 12px);right:0}.mobile-menu nav a{border-radius:10px;padding:11px 12px;font-weight:700}.mobile-menu nav a:hover{background:var(--surface-soft)}.hero{padding-top:76px;overflow:hidden}.hero-grid{grid-template-columns:minmax(0,1.1fr) minmax(390px,.9fr);align-items:center;gap:clamp(56px,8vw,108px);display:grid}.announcement{border:1px solid var(--line);background:var(--surface-glass);color:var(--ink-soft);border-radius:999px;align-items:center;gap:9px;margin-bottom:28px;padding:8px 12px;font-size:.8rem;font-weight:740;display:inline-flex}.announcement-dot{background:var(--accent);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 5px #5968f61c}.hero h1{letter-spacing:-.065em;max-width:780px;margin-bottom:28px;font-size:clamp(3.15rem,6.6vw,6rem)}.hero h1 span{color:var(--accent)}.hero-description{max-width:700px;color:var(--muted);margin-bottom:32px;font-size:clamp(1.08rem,1.7vw,1.3rem);line-height:1.58}.hero-actions{flex-wrap:wrap;gap:12px;display:flex}.hero-footnote{color:var(--muted);margin-top:17px;margin-bottom:0;font-size:.84rem}.terminal-card{border-radius:var(--radius-large);background:var(--dark);color:#f4f5f7;box-shadow:var(--shadow-large);border:1px solid #2e333f;position:relative;overflow:hidden}.terminal-card:before{content:"";filter:blur(80px);pointer-events:none;background:#5968f638;border-radius:50%;width:260px;height:260px;position:absolute;inset:-100px auto auto -100px}.terminal-bar{background:#171a20;border-bottom:1px solid #2a2f3a;align-items:center;gap:7px;min-height:52px;padding:0 18px;display:flex}.terminal-bar>span{background:#454b58;border-radius:50%;width:9px;height:9px}.terminal-bar>span:first-child{background:#ff6d67}.terminal-bar>span:nth-child(2){background:#f6c451}.terminal-bar>span:nth-child(3){background:#5cd28b}.terminal-bar small{color:#8f96a6;font-family:var(--font-mono);margin-left:8px;font-size:.7rem}.terminal-body{min-height:320px;padding:40px 34px;position:relative}.terminal-line{font-family:var(--font-mono);align-items:center;gap:12px;margin-bottom:20px;font-size:clamp(.84rem,1.3vw,.96rem);line-height:1.45;display:flex}.terminal-command{color:#f4f5f7}.terminal-command>span:first-child{color:#8a94ff}.terminal-success{color:#b9c0ca}.terminal-success>span:first-child{color:#5cd28b}.terminal-accent{color:#aeb5ff;font-weight:750}.terminal-cursor{background:#8893ff;width:8px;height:17px;margin-left:-6px;animation:1s step-end infinite cursor-blink;display:inline-block}.terminal-note{color:#aeb4c0;text-align:center;background:#171a20;border-top:1px solid #2a2f3a;padding:18px 28px;font-size:.82rem}@keyframes cursor-blink{50%{opacity:0}}.proof-strip{border-top:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin-top:90px;padding-top:28px;display:grid}.proof-strip div{border-right:1px solid var(--line);align-items:baseline;gap:11px;padding:0 24px;display:flex}.proof-strip div:first-child{padding-left:0}.proof-strip div:last-child{border-right:0}.proof-strip strong{letter-spacing:-.04em;font-size:1.55rem}.proof-strip span{color:var(--muted);font-size:.88rem}.section-heading{grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);align-items:end;gap:64px;margin-bottom:48px;display:grid}.section-heading h2{max-width:780px;margin-bottom:0}.section-heading>p{max-width:500px;color:var(--muted);margin-bottom:5px;font-size:1.04rem}.compact-heading{align-items:start}.course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.course-card{--course-accent:var(--accent);border:1px solid var(--line);border-radius:var(--radius-medium);background:var(--surface);flex-direction:column;min-height:350px;padding:26px;transition:transform .18s,box-shadow .18s,border-color .18s;display:flex;position:relative;overflow:hidden;box-shadow:0 1px #11131808}.course-card:hover{z-index:2;border-color:var(--line-strong);box-shadow:var(--shadow-small);transform:translateY(-5px)}.course-card-featured{background:linear-gradient(#fff 0%,#f4f5ff 100%);border-color:#5968f66b}.course-card-featured:after{content:"";z-index:-1;border-radius:inherit;filter:blur(14px);opacity:.38;background:linear-gradient(135deg,#5968f659,#0000 45%);position:absolute;inset:-1px}.course-accent-violet{--course-accent:#805ad5}.course-accent-cyan{--course-accent:#087f8c}.course-accent-green{--course-accent:#248257}.course-accent-amber{--course-accent:#a96008}.course-accent-rose{--course-accent:#b14663}.course-card-topline{justify-content:space-between;align-items:center;margin-bottom:30px;display:flex}.course-symbol{background:color-mix(in srgb, var(--course-accent) 12%, var(--surface));width:46px;height:46px;color:var(--course-accent);font-family:var(--font-mono);letter-spacing:-.03em;border-radius:13px;justify-content:center;align-items:center;font-size:.8rem;font-weight:850;display:inline-flex}.status{background:var(--surface-soft);color:var(--muted);letter-spacing:.04em;text-transform:uppercase;border-radius:999px;padding:6px 9px;font-size:.68rem;font-weight:800}.status-available{background:var(--success-surface);color:var(--success-text)}.status-in-progress{background:var(--warning-surface);color:var(--warning-text)}.course-card .eyebrow{color:var(--course-accent)}.course-card h3{margin-bottom:13px;font-size:1.45rem}.course-card>p:not(.eyebrow){color:var(--muted);margin-bottom:25px}.course-meta{border-top:1px solid var(--line);color:var(--muted);gap:18px;margin-top:auto;padding-top:20px;font-size:.78rem;font-weight:700;display:flex}.course-card .text-link{margin-top:17px;font-size:.9rem}.method-grid{grid-template-columns:minmax(280px,.78fr) minmax(0,1.22fr);gap:clamp(60px,10vw,130px);display:grid}.method-intro{align-self:start;position:sticky;top:116px}.method-intro h2{margin-bottom:24px;font-size:clamp(2.25rem,4vw,3.5rem)}.method-intro>p:not(.eyebrow){color:var(--muted);margin-bottom:24px;font-size:1.06rem}.steps-list{border-top:1px solid var(--line-strong)}.learning-step{border-bottom:1px solid var(--line-strong);grid-template-columns:72px minmax(0,1fr);gap:16px;padding:35px 0;display:grid}.step-number{color:var(--accent);font-family:var(--font-mono);font-size:.78rem;font-weight:800}.learning-step h3{margin-bottom:9px;font-size:1.7rem}.learning-step p{max-width:570px;color:var(--muted);margin-bottom:0}.section-dark{background:var(--dark);color:#fff}.beta-grid{grid-template-columns:minmax(0,1fr) minmax(380px,.8fr);align-items:start;gap:clamp(60px,9vw,130px);display:grid}.eyebrow-light{color:#99a3ff}.beta-grid h2{margin-bottom:24px}.beta-grid>div>p:not(.eyebrow){color:#afb5c0;max-width:650px;margin-bottom:0;font-size:1.06rem}.beta-roadmap{border-top:1px solid #343944;margin:0;padding:0;list-style:none}.beta-roadmap li{border-bottom:1px solid #343944;grid-template-columns:64px minmax(0,1fr);align-items:center;gap:16px;padding:24px 0;display:grid}.beta-roadmap>li>span{color:#8e99ff;font-family:var(--font-mono);font-size:1.25rem;font-weight:800}.beta-roadmap div{flex-direction:column;display:flex}.beta-roadmap strong{font-size:.98rem}.beta-roadmap small{color:#8d94a1;margin-top:4px}.open-source-card{border-radius:var(--radius-large);background:linear-gradient(135deg,#fff,#eef0ff);border:1px solid #5968f652;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:60px;padding:clamp(36px,6vw,70px);display:grid;position:relative;overflow:hidden}.open-source-card:after{content:"</>";color:#5968f614;font-family:var(--font-mono);letter-spacing:-.18em;pointer-events:none;font-size:12rem;font-weight:900;position:absolute;bottom:-52px;right:-18px}.open-source-card>*{z-index:1;position:relative}.open-source-card h2{max-width:760px;margin-bottom:18px;font-size:clamp(2rem,4vw,3.45rem)}.open-source-card p:not(.eyebrow){max-width:670px;color:var(--muted);margin-bottom:0}.open-source-actions{gap:11px;display:grid}.repo-star-section{border-top:1px solid var(--line);background:radial-gradient(circle at 18% 25%, #5968f621, transparent 30%), var(--background);padding:74px 0}.repo-star-card{border:1px solid var(--code-line);border-radius:var(--radius-large);background:radial-gradient(circle at 78% 20%, #707cff36, transparent 28%), linear-gradient(135deg, var(--code-background), #171b27);color:var(--code-text);box-shadow:var(--shadow-large);grid-template-columns:92px minmax(0,1fr) minmax(220px,auto);align-items:center;gap:30px;padding:42px;display:grid;position:relative;overflow:hidden}.repo-star-card:after{color:#8f98ff0f;content:"★";pointer-events:none;font-size:17rem;line-height:1;position:absolute;bottom:-96px;right:-38px}.repo-star-card>*{z-index:1;position:relative}.repo-star-symbol{color:#aeb5ff;background:#8f98ff1f;border:1px solid #aeb5ff42;border-radius:24px;place-items:center;width:82px;height:82px;display:grid;transform:rotate(-5deg)}.repo-star-symbol svg{fill:currentColor;width:38px}.repo-star-copy .eyebrow{color:#aeb5ff;margin-bottom:10px}.repo-star-copy h2{margin-bottom:12px;font-size:clamp(1.8rem,3.4vw,3rem)}.repo-star-copy>p:not(.eyebrow){color:#b9c0cc;max-width:650px;margin-bottom:17px}.repo-star-copy ul{color:#969eac;flex-wrap:wrap;gap:8px 18px;margin:0;padding:0;font-size:.75rem;font-weight:750;list-style:none;display:flex}.repo-star-copy li:before{color:#71d99e;content:"✓";margin-right:7px}.repo-star-action{justify-items:center;gap:11px;display:grid}.repo-star-button{color:#111318;white-space:nowrap;background:#f4f5f7;border:1px solid #ffffff29;border-radius:999px;justify-content:center;align-items:center;gap:9px;min-height:52px;padding:13px 19px;font-weight:820;line-height:1.2;transition:transform .16s,background .16s;display:inline-flex}.repo-star-button:hover{background:#aeb5ff;transform:translateY(-2px)}.repo-star-button svg{fill:currentColor;width:18px}.repo-star-action small{color:#8f97a5;text-align:center;max-width:210px;font-size:.7rem}.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:66px 0 26px}.footer-grid{grid-template-columns:minmax(0,1fr) auto;gap:90px;padding-bottom:50px;display:grid}.footer-brand>p{max-width:480px;color:var(--muted);margin-top:20px;margin-bottom:0}.footer-links{grid-template-columns:repeat(2,minmax(130px,1fr));gap:60px;display:grid}.footer-links>div{align-content:start;gap:10px;display:grid}.footer-links strong{text-transform:uppercase;letter-spacing:.08em;margin-bottom:5px;font-size:.82rem}.footer-links a{color:var(--muted)}.footer-links a:hover{color:var(--accent-dark)}.footer-bottom{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;gap:24px;padding-top:22px;font-size:.78rem;display:flex}.footer-bottom p{margin-bottom:0}.page-hero{padding-top:92px;padding-bottom:92px}.page-hero h1{letter-spacing:-.06em;margin-bottom:26px;font-size:clamp(3rem,7vw,5.4rem)}.page-hero p:not(.eyebrow){max-width:750px;color:var(--muted);margin-bottom:32px;font-size:1.18rem}.level-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.level-card{border:1px solid var(--line);border-radius:var(--radius-medium);background:var(--surface);min-height:190px;padding:23px}.level-card>span{color:var(--accent-dark);font-family:var(--font-mono);margin-bottom:24px;font-size:.72rem;font-weight:800;display:inline-block}.level-card h3{margin-bottom:10px;font-size:1.25rem}.level-card p{color:var(--muted);margin-bottom:0;font-size:.9rem}.breadcrumb{color:var(--muted);margin-bottom:32px;font-size:.9375rem;font-weight:720;display:inline-flex}.breadcrumb:hover{color:var(--accent-dark)}.course-hero{--course-accent:var(--accent);background:linear-gradient(180deg, color-mix(in srgb, var(--course-accent) 7%, var(--background)), var(--background));border-bottom:1px solid var(--line)}.course-title-row{align-items:center;gap:22px;display:flex}.course-title-row h1{letter-spacing:-.06em;margin-bottom:18px;font-size:clamp(3rem,7vw,5.2rem)}.course-title-row .eyebrow{color:var(--course-accent)}.course-symbol-large{border-radius:20px;flex:none;width:74px;height:74px;font-size:1.05rem}.course-lead{max-width:760px;color:var(--muted);font-size:1.15rem}.course-summary{border-block:1px solid var(--line);color:var(--muted);flex-wrap:wrap;gap:32px;margin:32px 0;padding:20px 0;font-size:.86rem;display:flex}.course-summary span{align-items:baseline;gap:6px;display:flex}.course-summary strong{color:var(--ink);font-size:1.05rem}.mapped-note{border:1px solid var(--line);background:var(--surface-glass);color:var(--muted);border-radius:12px;margin:8px 0 0;padding:11px 14px;font-size:.88rem;display:inline-block}.course-progress-section{border-top:1px solid var(--line)}.foundation-progress-panel{border:1px solid var(--line);border-radius:var(--radius-large);background:var(--surface);box-shadow:var(--shadow-small);padding:28px}.foundation-progress-panel-header h2{margin-bottom:8px;font-size:clamp(1.6rem,2.8vw,2.2rem)}.foundation-progress-text{color:var(--muted);margin:9px 0 18px;font-size:1.125rem;line-height:1.6}.foundation-progress-bar{background:var(--surface-soft);border-radius:999px;width:100%;height:10px;overflow:hidden}.foundation-progress-bar span{border-radius:inherit;background:var(--accent);height:100%;transition:width .18s;display:block}.foundation-progress-list{gap:10px;margin:16px 0 0;padding:0;list-style:none;display:grid}.foundation-progress-item{border:1px solid var(--line);background:var(--surface-soft);border-radius:12px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:13px;min-height:64px;padding:12px;display:grid}.foundation-progress-item.state-locked{opacity:.68}.foundation-progress-item-copy{align-items:flex-start;gap:12px;min-width:0;display:flex}.foundation-lesson-number{border:1px solid var(--line-strong);background:var(--surface);width:42px;height:42px;color:var(--accent-dark);border-radius:11px;flex:0 0 42px;place-items:center;font-size:1.125rem;font-weight:800;display:grid}.foundation-lesson-link{color:var(--ink);text-underline-offset:3px;margin-bottom:4px;font-weight:760;text-decoration:underline;display:inline-block}.foundation-lesson-link:hover{color:var(--accent-dark)}.foundation-lesson-locked{color:var(--muted);margin-bottom:4px;font-weight:760;display:inline-block}.foundation-progress-item small{color:var(--muted);margin-top:2px;display:block}.course-levels{gap:72px;display:grid}.level-heading{grid-template-columns:90px minmax(0,1fr);gap:22px;margin-bottom:30px;display:grid}.level-heading>span{color:var(--accent-dark);font-family:var(--font-mono);padding-top:8px;font-size:.76rem;font-weight:800}.level-heading h2{margin-bottom:8px;font-size:2rem}.level-heading p{color:var(--muted);margin-bottom:0}.lesson-list{border-top:1px solid 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var(--line-strong);background:var(--background);width:48px;height:48px;color:var(--accent-dark);font-family:var(--font-mono);border-radius:50%;justify-content:center;align-items:center;font-size:.68rem;font-weight:850;display:inline-flex}.practice-stepper li>div{padding:11px 0 18px}.practice-stepper strong{margin-bottom:4px;display:block}.practice-stepper p{color:var(--muted);margin:0}.expected-output{border:1px solid var(--success-line);background:var(--success-surface);border-radius:13px;justify-content:space-between;align-items:center;gap:20px;padding:17px 19px;display:flex}.expected-output span{color:var(--success-text);letter-spacing:.08em;text-transform:uppercase;font-size:.7rem;font-weight:850}.expected-output code{font-weight:750}.mistake-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:11px;margin-top:30px;display:grid}.mistake-grid article{border:1px solid 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