@font-face{font-family:Silkscreen;src:url('/assets/silkscreen-400.woff2') format('woff2');font-weight:400;font-display:swap}@font-face{font-family:Silkscreen;src:url('/assets/silkscreen-700.woff2') format('woff2');font-weight:700;font-display:swap}@font-face{font-family:Space;src:url('/assets/space-grotesk-400.woff2') format('woff2');font-weight:400;font-display:swap}@font-face{font-family:Space;src:url('/assets/space-grotesk-500.woff2') format('woff2');font-weight:500;font-display:swap}
:root{color-scheme:dark;--bg:#000;--surface:#0b0c0b;--text:#f0eee5;--muted:#aaa99f;--line:#292b27;--accent:#eedb78;--accent-dim:#a79542;--max:1320px;--nav-layer:10;--toast-layer:20}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);color:var(--text);font:18px/1.6 Space,Arial,sans-serif}button,input{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:default}a,button,input,summary{touch-action:manipulation}img{max-width:100%;height:auto;display:block}::selection{background:var(--accent);color:#000}[hidden]{display:none!important}:focus-visible{outline:2px solid var(--accent);outline-offset:6px}.wrap{width:min(var(--max),calc(100% - 112px));margin-inline:auto}.pixel{font-family:Silkscreen,monospace;line-height:1.5;font-weight:400}.skip{position:fixed;top:12px;left:12px;z-index:var(--toast-layer);background:var(--accent);color:#000;padding:12px;transform:translateY(-160%)}.skip:focus{transform:none}.site-header{position:sticky;top:0;background:#000;border-bottom:1px solid #20211e;z-index:var(--nav-layer)}.nav{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{font-family:Silkscreen,monospace;font-size:23px;letter-spacing:-1.2px;white-space:nowrap;display:flex;gap:9px;align-items:center}.brand .suffix{color:var(--accent)}.brand-symbol{display:grid;place-items:center;width:28px;height:28px;background:var(--accent);color:#000;font:20px/1 Silkscreen;box-shadow:3px 3px 0 #5f552d;margin-right:5px}.nav-links{display:flex;align-items:center;gap:34px;font-size:14px}.nav-links a:hover{color:var(--accent)}.saved-nav{background:transparent;border:1px solid var(--line);padding:10px 15px;color:var(--text);white-space:nowrap;font-size:13px;display:flex;align-items:center;gap:9px}.saved-nav:hover,.saved-nav[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}.saved-number{color:var(--accent);font-size:12px;line-height:1;padding:3px 5px;background:#262218}.hero{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:38px;min-height:610px;padding-block:72px 66px}.hero-copy{max-width:760px}.eyebrow{font:12px/1.6 Silkscreen,monospace;color:var(--muted);margin:0 0 26px}.hero h1{font:400 clamp(28px,2.7vw,40px)/1.46 Silkscreen,monospace;letter-spacing:-1.15px;margin:0 0 27px}.hero h1 span{color:var(--accent)}.hero-description{font-size:19px;line-height:1.75;max-width:580px;margin:0;color:var(--muted)}.hero-description strong{font-weight:500;color:var(--text)}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:34px}.button{border:0;display:inline-flex;align-items:center;justify-content:center;gap:22px;padding:16px 23px;color:#000;background:var(--accent);font:13px/1.5 Silkscreen,monospace;box-shadow:4px 4px 0 var(--accent-dim);white-space:nowrap;transition:transform .16s,box-shadow .16s}.button:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--accent-dim)}.button:active{transform:translate(3px,3px);box-shadow:1px 1px 0 var(--accent-dim)}.text-action{font-size:15px;background:none;border:0;color:var(--muted);padding:12px 0;white-space:nowrap}.text-action:hover{color:var(--text)}.text-action span{margin-left:9px;color:var(--accent)}.hero-art{position:relative;min-height:410px;display:flex;justify-content:center;align-items:center;isolation:isolate}.hero-art img{width:95%;max-width:500px;aspect-ratio:4/3;object-fit:contain;image-rendering:pixelated}.pixel-star{position:absolute;width:5px;height:5px;background:var(--accent);opacity:.75;z-index:-1;box-shadow:0 -5px 0 var(--accent),0 5px 0 var(--accent),-5px 0 0 var(--accent),5px 0 0 var(--accent)}.star-a{left:9%;top:12%}.star-b{right:5%;bottom:16%;transform:scale(.6)}.star-c{left:23%;bottom:5%;transform:scale(.4)}.star-d{right:19%;top:8%;transform:scale(.4);opacity:.5}.hero-art:after{content:'';width:38%;height:7px;position:absolute;bottom:16px;left:31%;background:#252021;box-shadow:8px 7px 0 #131010,-8px 0 0 #131010;z-index:-1}.library{padding:51px 0 83px;border-top:1px solid var(--line)}.section-title{font:400 clamp(20px,1.8vw,26px)/1.5 Silkscreen,monospace;letter-spacing:-.5px;margin:0 0 13px}.section-subtitle{font-size:17px;color:var(--muted);margin:0 0 32px}.tools{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:32px}.filters{display:flex;gap:7px;flex-wrap:wrap}.filter{font-size:13px;border:1px solid transparent;padding:9px 13px;background:transparent;color:var(--muted);transition:border-color .15s,color .15s}.filter:hover{color:var(--text);border-color:#4a4c44}.filter[aria-pressed=true]{background:var(--accent);color:#000;border-color:var(--accent)}.search{position:relative;width:270px;flex-shrink:0}.search input{width:100%;background:transparent;color:var(--text);border:1px solid var(--line);padding:10px 14px;font-size:14px;height:43px}.search input::placeholder{color:#aaa99f}.search input:focus{border-color:var(--accent);outline-offset:3px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.result-count{color:var(--muted);font-size:13px;margin:0 0 22px}.feature{display:grid;grid-template-columns:.85fr 1.15fr;min-height:265px;border:1px solid #48412d;background:#0e0e0a;position:relative;margin-bottom:28px;transition:border-color .18s}.feature:hover{border-color:var(--accent)}.feature-art{display:flex;align-items:center;justify-content:center;background:#121009;border-right:1px solid #332f20}.feature-art img{width:310px;image-rendering:pixelated;aspect-ratio:160/112}.feature-copy{padding:32px 42px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.feature-label{font:12px/1.5 Silkscreen,monospace;color:var(--accent);margin:0 0 13px}.meta{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:13px;margin:0 0 11px}.meta span+span:before{content:'/';margin-right:13px;color:#68685c}.feature h3{font:500 28px/1.3 Space,Arial,sans-serif;margin:0 0 13px}.feature p{margin:0 0 19px;font-size:16px;color:var(--muted);max-width:450px}.lesson-link{display:inline-flex;align-items:center;gap:20px;color:var(--accent);font:12px/1.5 Silkscreen,monospace}.stretch-link:after{content:'';position:absolute;inset:0}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.lesson-card{position:relative;border:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;transition:border-color .18s,transform .18s}.lesson-card:hover{border-color:#68695b;transform:translateY(-3px)}.card-art{height:190px;display:grid;place-items:center;border-bottom:1px solid #232520;background:#090c0d}.lesson-card[data-category=Mente] .card-art{background:#11110d}.lesson-card[data-category=Naturaleza] .card-art{background:#090f0b}.lesson-card[data-category=Tecnología] .card-art{background:#0d100d}.lesson-card[data-id=que-es-un-agujero-negro] .card-art{background:#0f0b09}.card-art img{width:235px;height:165px;image-rendering:pixelated;object-fit:contain}.card-copy{padding:24px 27px 27px;flex:1;display:flex;flex-direction:column;align-items:flex-start}.card-copy h3{font:500 22px/1.3 Space,Arial,sans-serif;margin:0 0 13px;max-width:320px}.card-copy>p{font-size:15px;line-height:1.65;color:var(--muted);margin:0 0 23px;flex:1}.card-status{margin-left:auto;color:var(--accent);font-size:11px;white-space:nowrap}.empty{border:1px dashed #5e5945;padding:50px 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var(--line);padding:31px 0}.footer-content{display:flex;justify-content:space-between;gap:30px;align-items:center}.footer-content .brand{font-size:16px}.footer-content p{font-size:13px;color:var(--muted);margin:0}.footer-content a:last-child{font-size:13px;color:var(--muted)}.footer-content a:last-child:hover{color:var(--accent)}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);z-index:var(--toast-layer);color:var(--text);background:#191b13;border:1px solid var(--accent);font-size:14px;padding:12px 22px;box-shadow:4px 4px 0 #5f552d;max-width:calc(100% - 32px);width:max-content;text-align:center}.article-wrap{width:min(1040px,calc(100% - 112px));margin:auto}.back-link{display:inline-flex;gap:12px;font-size:14px;color:var(--muted);margin-top:40px}.back-link:hover{color:var(--accent)}.article-hero{display:grid;grid-template-columns:1fr 280px;gap:50px;align-items:center;padding:39px 0 43px;border-bottom:1px solid var(--line)}.article-hero h1{font:400 29px/1.5 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@media(min-width:1550px){.hero{min-height:665px;gap:60px}.hero h1{font-size:39px}.hero-art img{max-width:510px}.hero-description{max-width:560px}}
@media(max-width:1100px){.wrap,.article-wrap{width:calc(100% - 64px)}.hero{grid-template-columns:1.2fr 1fr;gap:15px;min-height:540px;padding-block:55px}.hero h1{font-size:30px;letter-spacing:-.8px}.hero-description{font-size:17px}.hero-art{min-height:340px}.hero-actions{gap:22px}.button{font-size:11px;padding:15px 18px;gap:16px}.nav-links{gap:22px}.brand{font-size:20px}.tools{align-items:flex-start;flex-direction:column;gap:15px}.search{width:100%}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-copy{padding:28px}.feature h3{font-size:25px}.about-grid{gap:45px}.about h2{font-size:20px}.article-hero{grid-template-columns:1fr 210px;gap:20px}.article-hero h1{font-size:25px}.article-art img{width:210px}.article-hero .intro{font-size:18px}}
@media(max-width:767px){html{scroll-padding-top:85px}.wrap,.article-wrap{width:calc(100% - 40px)}.nav{height:70px;gap:14px}.brand{font-size:17px;letter-spacing:-1px;gap:4px}.brand-symbol{width:20px;height:22px;font-size:15px;margin-right:3px}.nav-links>a{display:none}.saved-nav{font-size:11px;gap:6px;padding:8px 10px}.saved-number{font-size:10px}.hero{display:flex;flex-direction:column;gap:25px;align-items:stretch;padding:37px 0 40px;min-height:0}.eyebrow{font-size:9px;margin-bottom:19px}.hero h1{font-size:clamp(19px,5.5vw,29px);line-height:1.5;letter-spacing:-.6px;margin-bottom:20px}.hero-description{font-size:16px;line-height:1.8;max-width:570px}.hero-actions{gap:20px;margin-top:26px}.hero-actions .button{font-size:10px;padding:14px 15px;gap:13px}.text-action{font-size:13px}.hero-art{min-height:245px;width:100%;max-width:400px;margin:0 auto}.hero-art img{width:92%;max-width:355px;aspect-ratio:4/3}.hero-art:after{bottom:4px}.star-a{top:9%;left:5%}.library{padding:35px 0 45px}.section-title{font-size:19px;letter-spacing:-.5px}.section-subtitle{font-size:15px;margin-bottom:24px}.tools{gap:19px;margin-bottom:24px}.filters{gap:3px}.filter{font-size:12px;padding:8px 10px}.search{width:100%}.result-count{margin-bottom:17px}.feature{grid-template-columns:1fr;min-height:0;margin-bottom:22px}.feature-art{border-right:0;border-bottom:1px solid #332f20;height:190px}.feature-art img{width:265px}.feature-copy{padding:25px}.feature-label{font-size:10px;margin-bottom:13px}.feature h3{font-size:24px}.feature p{font-size:15px;margin-bottom:19px}.lesson-grid{grid-template-columns:1fr;gap:22px}.card-art{height:187px}.card-art img{width:240px;height:168px}.card-copy{padding:23px 25px 26px}.card-copy h3{font-size:23px;max-width:100%}.card-copy>p{font-size:15px}.about{padding:40px 0 48px}.about-grid{grid-template-columns:1fr;gap:33px}.about h2{font-size:19px;margin-bottom:19px;max-width:500px}.about-copy p{font-size:16px}.faq summary{font-size:15px}.faq p{font-size:14px}.site-footer{padding:25px 0}.footer-content{flex-wrap:wrap;gap:14px}.footer-content .brand{width:100%;font-size:16px}.footer-content p{font-size:12px}.footer-content a:last-child{font-size:12px;margin-left:auto}.article-hero{grid-template-columns:1fr;padding-top:27px;gap:15px}.article-hero h1{font-size:23px;line-height:1.5}.article-art{grid-row:1;display:flex;justify-content:center}.article-art img{width:230px;height:160px;object-fit:contain}.article-hero .intro{font-size:18px}.article-content{margin-top:32px;margin-bottom:50px}.article-content h2{font-size:24px}.article-content p{font-size:18px;line-height:1.8}.example{padding:23px}.example h2{font-size:13px}.example p{font-size:16px}.takeaway h2{font-size:14px}.takeaway p{font-size:20px}.quiz{padding:24px 21px}.quiz h2{font-size:15px}.quiz legend{font-size:17px}.quiz label{font-size:15px;padding:11px}.next-lesson{flex-direction:column;align-items:flex-start;gap:13px}.article-controls{gap:11px}.outline-button{font-size:12px;padding:10px 13px}.empty{padding:36px 20px}.empty h3{font-size:16px}.empty p{font-size:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.lesson-card:hover,.button:hover{transform:none}}