:root{--bg:#212121;--surface:#282828;--fg:#f6f6f6;--muted:#9c9c9c;--line:#383838;--line-strong:#4a4a4a;--font-pixel:"Bytesized", "Courier New", monospace;--font-mono:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--step:steps(3)}*,:before,:after{box-sizing:border-box}html{background:var(--bg);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;scrollbar-color:var(--line-strong) var(--bg)}body{font-synthesis:none;font-family:var(--font-mono);color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-size:.95rem;line-height:1.75;overflow-x:clip}::selection{background:var(--fg);color:var(--bg)}:focus-visible{outline:2px dashed var(--fg);outline-offset:3px}img{max-width:100%;display:block}a{color:inherit}.wrap{width:min(100% - 3rem,68rem);margin-inline:auto}.wrap--narrow{width:min(100% - 3rem,44rem);margin-inline:auto}main{min-height:60vh}.px{font-family:var(--font-pixel);letter-spacing:.02em}.label{font-family:var(--font-pixel);text-transform:uppercase;color:var(--muted);letter-spacing:.15em;font-size:.8rem}.site-header{z-index:10;background:color-mix(in srgb, var(--bg) 85%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0}.site-header__inner{justify-content:space-between;align-items:center;gap:1rem;padding-block:.85rem;display:flex}.brand{font-family:var(--font-pixel);text-transform:uppercase;align-items:center;gap:.65rem;font-size:1.25rem;font-weight:700;text-decoration:none;display:flex}.brand svg{color:var(--fg)}.brand:hover svg{animation:bob .5s var(--step) infinite}.site-nav{gap:.35rem;display:flex}.site-nav a{font-family:var(--font-pixel);text-transform:uppercase;color:var(--muted);align-items:center;padding:.35rem .7rem;font-size:1rem;text-decoration:none;display:inline-flex}.site-nav a:hover{color:var(--bg);background:var(--fg)}.site-nav a[aria-current=page]{color:var(--fg)}.site-nav a[aria-current=page]:hover{color:var(--bg);background:var(--fg)}.hero{border-bottom:1px solid var(--line);padding-block:7rem 5rem;position:relative;overflow:hidden}.hero:before{content:"";background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);opacity:.5;pointer-events:none;background-size:32px 32px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(90% 90% at 50% 0,#000 20%,#0000 75%);mask-image:radial-gradient(90% 90% at 50% 0,#000 20%,#0000 75%)}.hero__inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:3rem 4rem;display:flex;position:relative}.hero .label{font-size:1rem}.hero__title{font-family:var(--font-pixel);text-transform:uppercase;letter-spacing:.02em;margin:.75rem 0 1.25rem;font-size:clamp(2.6rem,8vw,5rem);font-weight:700;line-height:1.05}.hero__tagline{max-width:34rem;color:var(--muted);margin:0 0 2.25rem}.hero__tagline strong{color:var(--fg);font-weight:500}.hero__cloud{color:var(--fg);animation:bob 1.2s var(--step) infinite;flex-shrink:0}@keyframes bob{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.cursor{animation:1.1s step-end infinite blink}@keyframes blink{50%{opacity:0}}@media (prefers-reduced-motion:reduce){.hero__cloud,.cursor,.brand:hover svg,.marquee__track{animation:none}}.btn-row{flex-wrap:wrap;gap:1rem;display:flex}.btn{--btn-fill:var(--fg);--btn-hover:#c9c9c9;--btn-text:var(--bg);font-family:var(--font-pixel);text-transform:uppercase;background:var(--btn-fill);color:var(--btn-text);clip-path:polygon(0 6px,3px 6px,3px 3px,6px 3px,6px 0,calc(100% - 6px) 0,calc(100% - 6px) 3px,calc(100% - 3px) 3px,calc(100% - 3px) 6px,100% 6px,100% calc(100% - 6px),calc(100% - 3px) calc(100% - 6px),calc(100% - 3px) calc(100% - 3px),calc(100% - 6px) calc(100% - 3px),calc(100% - 6px) 100%,6px 100%,6px calc(100% - 3px),3px calc(100% - 3px),3px calc(100% - 6px),0 calc(100% - 6px));padding:.85rem 1.7rem;font-size:.95rem;font-weight:700;line-height:1.4;text-decoration:none;display:inline-block}.btn:hover{background:var(--btn-hover)}.btn--ghost{--btn-fill:var(--line);--btn-hover:#4a4a4a;--btn-text:var(--fg)}.marquee{border-bottom:1px solid var(--line);-webkit-user-select:none;user-select:none;padding-block:.7rem;overflow:hidden}.marquee__track{width:max-content;animation:30s linear infinite marquee;display:flex}.marquee span{font-family:var(--font-pixel);text-transform:uppercase;color:var(--muted);white-space:nowrap;padding-right:3rem;font-size:1rem}@keyframes marquee{to{transform:translate(-50%)}}.section{padding-block:4.5rem}.section__head{justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:2.5rem;display:flex}.section__title{font-family:var(--font-pixel);text-transform:uppercase;margin:0;font-size:1.3rem;font-weight:700}.section__title:before{content:"// ";color:var(--muted)}.all-link{font-family:var(--font-pixel);text-transform:uppercase;color:var(--muted);white-space:nowrap;font-size:.8rem;text-decoration:none}.all-link:hover{color:var(--bg);background:var(--fg)}.post-grid{grid-template-columns:repeat(auto-fill,minmax(17rem,1fr));gap:1.25rem;display:grid}.post-list{flex-direction:column;gap:1.25rem;display:flex}.post-card{--card-pad:1.5rem;border:1px solid var(--line);background:var(--surface);padding:var(--card-pad);transition:transform .15s var(--step), box-shadow .15s var(--step), border-color .15s var(--step);flex-direction:column;display:flex;position:relative}.post-card:before{content:"";z-index:1;width:16px;height:16px;color:var(--line);pointer-events:none;background:repeating-conic-gradient(currentColor 0% 25%,#0000 0% 50%) 0 0/4px 4px;position:absolute;top:0;right:0}.post-card:has(.card-cover):before{color:var(--fg);opacity:.6}.post-card:hover{border-color:var(--fg);box-shadow:4px 4px 0 var(--fg);transform:translate(-4px,-4px)}.post-card:hover:before{color:var(--fg)}.post-card__top{border-bottom:1px dashed var(--line);justify-content:space-between;align-items:baseline;gap:.75rem;margin-bottom:1rem;padding-bottom:.8rem;display:flex}.post-card__num{color:var(--muted);font-size:.75rem}.post-card:hover .post-card__num{color:var(--fg)}.post-card__date{color:var(--muted);letter-spacing:.05em;font-size:.72rem}.post-card__title{font-family:var(--font-pixel);margin:0 0 .5rem;font-size:1.35rem;font-weight:700;line-height:1.3}.post-card__title a{text-decoration:none}.post-card__title a:after{content:"";position:absolute;inset:0}.post-card__desc{color:var(--muted);margin:0 0 1.25rem;font-size:.85rem}.post-card__foot{border-top:1px dashed var(--line);justify-content:space-between;align-items:center;gap:.75rem;margin-top:auto;padding-top:.8rem;display:flex}.post-card__read{text-transform:uppercase;color:var(--muted);white-space:nowrap;font-size:.72rem}.post-card:hover .post-card__read{color:var(--fg)}.card-cover{margin:calc(-1 * var(--card-pad)) calc(-1 * var(--card-pad)) 1.25rem;border-bottom:1px solid var(--line);position:relative;overflow:hidden}.card-cover img,.cover-frame img{aspect-ratio:16/9;object-fit:cover;filter:grayscale()contrast(1.08);width:100%;height:auto;display:block}.card-cover:after,.cover-frame:after{content:"";opacity:.22;pointer-events:none;background:repeating-conic-gradient(#212121 0% 25%,#0000 0% 50%) 0 0/4px 4px;position:absolute;inset:0}.post-card:hover .card-cover img{filter:grayscale()contrast(1.12)brightness(1.08)}.cover-frame{border:1px solid var(--line);margin:0 0 2.5rem;position:relative;overflow:hidden}.cover-frame img{aspect-ratio:21/9}.tag-row{flex-wrap:wrap;gap:.4rem;display:flex}.tag{font-family:var(--font-pixel);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);border:1px solid var(--line);padding:.15rem .45rem;font-size:.68rem}.about-strip{border-top:1px solid var(--line);padding-block:3.5rem}.about-strip__inner{flex-wrap:wrap;align-items:center;gap:2rem;display:flex}.about-strip p{max-width:40rem;color:var(--muted);margin:0}.about-strip strong{color:var(--fg);font-weight:500}.page-head{border-bottom:1px solid var(--line);margin-bottom:3rem;padding-block:4.5rem 3rem}.page-head__title{font-family:var(--font-pixel);text-transform:uppercase;margin:.75rem 0 0;font-size:clamp(1.8rem,5vw,2.8rem);font-weight:700;line-height:1.2}.page-head__meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:.75rem 1.5rem;margin-top:1.25rem;font-size:.78rem;display:flex}.back-link{font-family:var(--font-pixel);text-transform:uppercase;color:var(--muted);font-size:.8rem;text-decoration:none}.back-link:hover{color:var(--bg);background:var(--fg)}.prose{color:#d6d6d6;padding-bottom:5rem}.prose>:first-child{margin-top:0}.prose h2,.prose h3{font-family:var(--font-pixel);text-transform:uppercase;color:var(--fg);margin:2.75rem 0 1rem;font-weight:700;line-height:1.4}.prose h2{font-size:1.15rem}.prose h3{font-size:.95rem}.prose h2:before{content:"## ";color:var(--muted)}.prose h3:before{content:"### ";color:var(--muted)}.prose a{color:var(--fg);text-underline-offset:3px;text-decoration:underline;-webkit-text-decoration-color:var(--line-strong);text-decoration-color:var(--line-strong)}.prose a:hover{background:var(--fg);color:var(--bg);text-decoration:none}.prose strong{color:var(--fg)}.prose code{font-family:var(--font-mono);border:1px solid var(--line);background:#303030;padding:.1em .35em;font-size:.85em}.prose pre{border:1px solid var(--line);margin:1.5rem 0;padding:1.1rem 1.3rem;font-size:.82rem;line-height:1.7;overflow-x:auto;background:#1b1b1b!important}.prose pre code{font-size:inherit;background:0 0;border:0;padding:0}.prose blockquote{border-left:3px solid var(--fg);color:var(--muted);margin:1.5rem 0;padding:.25rem 0 .25rem 1.25rem}.prose blockquote p{margin:.5rem 0}.prose ul,.prose ol{padding-left:1.5rem}.prose li{margin-block:.35rem}.prose li::marker{color:var(--muted)}.prose hr{background:repeating-conic-gradient(var(--line) 0% 25%, transparent 0% 50%) 0 0 / 5px 5px;border:0;height:10px;margin:2.5rem 0}.prose img{border:1px solid var(--line);filter:grayscale()}.prose table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.85rem}.prose th,.prose td{border:1px solid var(--line);text-align:left;padding:.5rem .8rem}.prose th{font-family:var(--font-pixel);text-transform:uppercase;color:var(--muted);font-size:.75rem}.post-footer{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;padding-block:2rem 4rem;display:flex}.site-footer{border-top:1px solid var(--line)}.site-footer__inner{color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding-block:2rem;font-size:.78rem;display:flex}.site-footer__brand{font-family:var(--font-pixel);text-transform:uppercase;color:var(--fg);align-items:center;gap:.6rem;font-size:.8rem;display:flex}.site-footer a{color:var(--muted)}.site-footer a:hover{color:var(--bg);background:var(--fg)}.notfound{text-align:center;flex-direction:column;align-items:center;gap:1.5rem;padding-block:7rem;display:flex}.notfound__code{font-family:var(--font-pixel);margin:0;font-size:clamp(3rem,10vw,6rem);font-weight:700;line-height:1}.course-grid{grid-template-columns:repeat(auto-fill,minmax(19rem,1fr));gap:1.25rem;display:grid}.course-card{--card-pad:1.75rem;padding:var(--card-pad);flex-direction:column;display:flex}.course-card__meta{align-items:center;gap:.75rem;margin-bottom:.4rem;display:flex}.course-card__stats{color:var(--muted);font-size:.72rem}.tag--level{color:var(--fg);border-color:var(--line-strong)}.course-card__cta{text-transform:uppercase;color:var(--muted);margin-top:auto;padding-top:.75rem;font-size:.75rem}.post-card:hover .course-card__cta{color:var(--fg)}.syllabus{padding-block:1rem 5rem}.syllabus__section{margin-top:2.5rem}.syllabus__name{text-transform:uppercase;color:var(--muted);margin:0 0 1rem;font-size:.85rem;font-weight:700}.syllabus__name:before{content:"▸ ";color:var(--fg)}.syllabus__list{border:1px solid var(--line);background:var(--surface);margin:0;padding:0;list-style:none}.syllabus__list li+li{border-top:1px solid var(--line)}.syllabus__item{align-items:baseline;gap:1.25rem;padding:1rem 1.25rem;text-decoration:none;display:flex}.syllabus__item:hover{background:var(--fg);color:var(--bg)}.syllabus__item:hover .syllabus__num,.syllabus__item:hover .syllabus__desc,.syllabus__item:hover .syllabus__go{color:var(--bg)}.syllabus__num{color:var(--muted);flex-shrink:0;font-size:.8rem}.syllabus__body{flex-direction:column;flex-grow:1;gap:.15rem;display:flex}.syllabus__title{font-family:var(--font-pixel);font-size:.82rem;font-weight:700}.syllabus__desc{color:var(--muted);font-size:.78rem}.syllabus__go{color:var(--muted);flex-shrink:0}.lesson-nav{grid-template-columns:1fr 1fr;gap:1.25rem;padding-block:1rem 5rem;display:grid}@media (width<=40rem){.lesson-nav{grid-template-columns:1fr}}.lesson-nav__link{border:1px solid var(--line);background:var(--surface);transition:transform .15s var(--step), box-shadow .15s var(--step), border-color .15s var(--step);flex-direction:column;gap:.4rem;padding:1.25rem 1.5rem;text-decoration:none;display:flex}.lesson-nav__link:hover{border-color:var(--fg);box-shadow:4px 4px 0 var(--fg);transform:translate(-4px,-4px)}.lesson-nav__link--next{text-align:right;align-items:flex-end}.lesson-nav__title{font-size:.82rem;font-weight:700}.donate-hero{border-bottom:1px solid var(--line);text-align:center;padding-block:6rem 4rem;position:relative;overflow:hidden}.donate-hero:before{content:"";background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);opacity:.5;pointer-events:none;background-size:32px 32px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 90% at 50% 100%,#000 20%,#0000 75%);mask-image:radial-gradient(70% 90% at 50% 100%,#000 20%,#0000 75%)}.donate-hero__inner{flex-direction:column;align-items:center;gap:1rem;display:flex;position:relative}.donate-hero__title{font-family:var(--font-pixel);text-transform:uppercase;margin:.5rem 0 0;font-size:clamp(2.2rem,7vw,4rem);font-weight:700;line-height:1.1}.donate-hero__text{max-width:36rem;color:var(--muted);font-family:var(--font-pixel);margin:.5rem 0 0;font-size:1.05rem}.donate-card .post-card__desc{font-family:var(--font-pixel);font-size:1rem}.earth__copy p{font-family:var(--font-pixel);font-size:1.1rem}.donate-grid{grid-template-columns:repeat(auto-fill,minmax(19rem,1fr));align-items:start;gap:1.25rem;display:grid}.donate-card{flex-direction:column;align-items:flex-start;gap:0;padding:1.75rem;display:flex}.donate-card:hover{box-shadow:none;transform:none}.donate-card .btn{margin-top:auto}.coin-cta__box{text-align:center;border:1px solid var(--line-strong);background:var(--surface);box-shadow:8px 8px 0 var(--line);flex-direction:column;align-items:center;gap:.9rem;padding:3.5rem 2rem;display:flex;position:relative;overflow:hidden}.coin-cta__box:before{content:"";background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);opacity:.45;pointer-events:none;background-size:24px 24px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(65% 90%,#000 10%,#0000 70%);mask-image:radial-gradient(65% 90%,#000 10%,#0000 70%)}.coin-cta__box>*{position:relative}.coin-cta__title{font-family:var(--font-pixel);text-transform:uppercase;margin:0;font-size:clamp(1.5rem,4.5vw,2.2rem);font-weight:700;line-height:1.2}.coin-cta__text{max-width:34rem;color:var(--muted);margin:0;font-size:.9rem}.coin-cta__btns{justify-content:center;margin-top:.75rem}.earth{--earth-bg:#6d9886;--earth-ink:#1c2f27;--earth-muted:#2e4c41;background:var(--earth-bg);color:var(--earth-ink);padding-block:4.5rem;position:relative}.earth:before,.earth:after{content:"";background:repeating-conic-gradient(var(--earth-ink) 0% 25%, transparent 0% 50%) 0 0 / 16px 16px;opacity:.35;height:16px;position:absolute;left:0;right:0}.earth:before{top:0}.earth:after{bottom:0}.earth__inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:3rem;display:flex}.earth__copy{max-width:30rem}.earth__label{color:var(--earth-muted);font-size:1rem}.earth__title{font-family:var(--font-pixel);text-transform:uppercase;margin:.75rem 0 1rem;font-size:clamp(1.4rem,4vw,2rem);font-weight:700;line-height:1.25}.earth__copy p{color:var(--earth-muted);margin:0 0 1rem}.earth__copy strong{color:var(--earth-ink);border-bottom:2px solid var(--earth-ink)}.receipt{color:#212121;width:21rem;max-width:100%;font-family:var(--font-pixel);text-align:left;filter:drop-shadow(5px 5px #1c2f2759);background:#f6f6f6;flex-shrink:0;padding:1.25rem 1.25rem 1.4rem;font-size:.95rem;line-height:1.7;display:block;position:relative;transform:rotate(1.5deg)}.receipt:before,.receipt:after{content:"";height:6px;position:absolute;left:0;right:0}.receipt:before{background:conic-gradient(from 135deg at 50% 0%, #f6f6f6 90deg, transparent 0) 0 0 / 12px 6px repeat-x;bottom:100%}.receipt:after{background:conic-gradient(from 315deg at 50% 100%, #f6f6f6 90deg, transparent 0) 0 0 / 12px 6px repeat-x;top:100%}.receipt__title{text-align:center;text-transform:uppercase;font-size:1.05rem;font-weight:700;display:block}.receipt hr{border:0;border-top:1px dashed #212121;margin:.6rem 0}.receipt__row{text-transform:uppercase;justify-content:space-between;gap:1rem;display:flex}.receipt__total{font-weight:700}.receipt__note{text-align:center;color:#3d3d3d;margin-top:.7rem;font-size:1rem;line-height:1.6;display:block}.receipt__barcode-clip{margin-top:.6rem;overflow:hidden}.receipt__barcode{text-align:center;color:#212121;transform-origin:50%;font-family:"Libre Barcode 39",cursive;font-size:2.6rem;font-weight:400;line-height:1;transform:scaleX(2)}.earth ::selection{background:var(--earth-ink);color:var(--earth-bg)}@media (width<=40rem){.wrap,.wrap--narrow{width:min(100% - 2rem,68rem)}.site-header__inner{gap:.5rem}.brand{gap:.45rem;font-size:1.05rem}.site-nav{gap:.1rem}.site-nav a{padding:.3rem .4rem;font-size:.85rem}.hero{text-align:center;padding-block:4rem 3.5rem}.hero__inner{justify-content:center;gap:2.5rem}.hero__tagline{margin-inline:auto}.hero .btn-row{justify-content:center}.hero__cloud{width:160px;height:auto}.section{padding-block:3rem}.section__head{margin-bottom:1.75rem}.page-head{margin-bottom:2rem;padding-block:3rem 2.25rem}.btn-row{gap:.75rem}.btn{padding:.75rem 1.1rem;font-size:.85rem}.coin-cta__box{box-shadow:5px 5px 0 var(--line);padding:2.5rem 1.25rem 2.75rem}.coin-cta__btns{flex-direction:column;align-items:stretch;width:100%;max-width:17rem}.coin-cta__btns .btn{text-align:center}.donate-hero{padding-block:4rem 3rem}.earth{padding-block:3.5rem}.earth__inner{text-align:center;flex-direction:column;gap:2rem}.earth__copy strong{border-bottom-width:1px}.receipt{margin-inline:auto}.about-strip__inner{text-align:center;flex-direction:column;gap:1.5rem}.site-footer__inner{text-align:center;flex-direction:column;align-items:center;gap:.6rem;padding-block:1.75rem}.syllabus__item{gap:.85rem;padding:.9rem 1rem}.terminal__body{padding:1.1rem 1rem;font-size:.76rem}}.duo{grid-template-columns:1fr 1.1fr;align-items:start;gap:3rem;display:grid}@media (width<=56rem){.duo{grid-template-columns:1fr}}.doing{margin:0;padding:0;list-style:none}.doing li{align-items:flex-start;gap:1.2rem;padding:1.2rem 0;display:flex}.doing li+li{border-top:1px dashed var(--line)}.doing__icon{width:2.8rem;height:2.8rem;font-family:var(--font-pixel);border:1px solid var(--line-strong);background:var(--surface);flex-shrink:0;place-items:center;font-size:.72rem;font-weight:700;display:grid}.doing__title{font-family:var(--font-pixel);text-transform:uppercase;font-size:.82rem;font-weight:700;display:block}.doing p{color:var(--muted);margin:.25rem 0 0;font-size:.82rem}.terminal{border:1px solid var(--line-strong);background:var(--surface)}.terminal__bar{border-bottom:1px solid var(--line);align-items:center;gap:.45rem;padding:.65rem .95rem;display:flex}.terminal__dot{background:var(--line-strong);width:9px;height:9px}.terminal__title{color:var(--muted);margin-left:auto;font-size:.7rem}.terminal__body{padding:1.3rem 1.5rem;font-size:.82rem;line-height:2}.terminal__body p{margin:0}.terminal__prompt{color:var(--muted);-webkit-user-select:none;user-select:none}.terminal__out{color:var(--muted);padding-left:1.15rem}