@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Noto+Sans+KR:wght@400;500;600;700;800;900&display=swap');

:root{--ink:#171717;--paper:#f7f4ee;--white:#fff;--muted:#716e68;--line:#d9d4cb;--coral:#ff5a36;--yellow:#ffd84d;--blue:#5ca9ff;--green:#73c987;--violet:#a98be8;--max:1180px;--mono:'DM Mono',monospace;--sans:'Noto Sans KR',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}.container{width:min(calc(100% - 48px),var(--max));margin:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip-link{position:fixed;top:-80px;left:20px;background:var(--ink);color:#fff;padding:10px 18px;z-index:100}.skip-link:focus{top:20px}.eyebrow{font:500 12px/1.3 var(--mono);letter-spacing:.13em;text-transform:uppercase;margin:0 0 20px}.eyebrow.light{color:var(--yellow)}em{font-style:normal;color:var(--coral)}h1,h2,h3,blockquote{word-break:keep-all;overflow-wrap:normal}.title-line{display:block}
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,244,238,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav-wrap{height:82px;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:12px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;background:var(--coral);font:900 25px/1 var(--sans);transform:rotate(-3deg)}.brand-copy{display:flex;flex-direction:column;line-height:1.1}.brand-copy strong{font-size:18px}.brand-copy small{font:500 9px var(--mono);letter-spacing:.17em;margin-top:5px}.main-nav{display:flex;gap:7px;align-items:center}.main-nav a{font:500 12px var(--mono);padding:12px 15px;border-radius:100px;transition:.2s}.main-nav a:hover,.main-nav a.active{background:var(--ink);color:#fff}.nav-toggle{display:none;border:0;background:none;width:42px;height:42px;padding:10px}.nav-toggle>span:not(.sr-only){display:block;height:2px;background:var(--ink);margin:5px 0}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border:1px solid var(--ink);font-size:14px;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}.button:hover{transform:translate(-3px,-3px);box-shadow:4px 4px 0 var(--ink)}.button-primary{background:var(--coral)}.button-ghost{background:transparent}.button-light{background:var(--yellow);color:var(--ink)}.button-disabled{background:#ded9d0;color:#777;border-color:#aaa;cursor:default}.button-disabled:hover{transform:none;box-shadow:none}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.section{padding:112px 0}.section-heading{display:flex;justify-content:space-between;gap:80px;align-items:flex-end;margin-bottom:55px}.section-heading h2,.spotlight-copy h2,.split-content h2,.mini-cta h2,.centered-copy h2,.profile-copy h2,.interest-section h2{font-size:clamp(36px,5vw,60px);line-height:1.12;letter-spacing:-.045em;margin:0}.section-heading>p{max-width:430px;color:var(--muted);margin:0}.section-dark{background:var(--ink);color:#fff}
.hero{min-height:720px;padding:82px 0 70px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:65px}.hero h1,.page-hero h1,.demo-hero h1,.contact-hero h1{font-size:clamp(58px,7vw,94px);line-height:1.03;letter-spacing:-.065em;margin:0}.hero-lead{font-size:18px;max-width:590px;color:#5f5c57;margin:28px 0 0}.hero-meta{display:flex;gap:42px;margin-top:55px;padding-top:25px;border-top:1px solid var(--line)}.hero-meta div{display:flex;gap:9px;align-items:baseline}.hero-meta strong{font:500 24px var(--mono)}.hero-meta span{font:500 10px var(--mono);color:var(--muted);letter-spacing:.1em}.portrait-card{position:relative;height:520px;background:var(--yellow);border:1px solid var(--ink);overflow:hidden;box-shadow:12px 12px 0 var(--ink)}.code-window{position:absolute;z-index:3;left:8%;top:22%;width:84%;background:#202020;color:#e9e5dc;border:1px solid var(--ink);box-shadow:8px 8px 0 var(--coral);transform:rotate(-2deg)}.window-dots{height:38px;border-bottom:1px solid #555;display:flex;align-items:center;gap:7px;padding:0 14px}.window-dots i{width:9px;height:9px;border-radius:50%;background:var(--coral)}.window-dots i:nth-child(2){background:var(--yellow)}.window-dots i:nth-child(3){background:var(--green)}.code-window pre{margin:0;padding:29px 27px 35px;font:15px/1.85 var(--mono);white-space:pre-wrap}.code-window pre span{color:var(--blue)}.code-window pre b{color:var(--yellow);font-weight:400}.code-window pre em{color:var(--violet)}.orbit{position:absolute;border:2px solid var(--ink);border-radius:50%}.orbit-one{width:420px;height:180px;left:-70px;bottom:-20px;transform:rotate(18deg)}.orbit-two{width:350px;height:350px;right:-180px;top:-180px}.floating-tag{position:absolute;display:grid;place-items:center;background:#fff;border:1px solid var(--ink);font:700 18px var(--mono);box-shadow:5px 5px 0 var(--ink);z-index:4}.tag-python{width:68px;height:68px;right:18px;top:22px;transform:rotate(8deg)}.tag-braces{width:78px;height:58px;left:18px;bottom:25px;transform:rotate(-8deg);background:var(--blue)}.floating-note{position:absolute;right:19px;bottom:25px;background:var(--coral);border-radius:50%;width:98px;height:98px;display:grid;place-items:center;text-align:center;font:700 12px/1.35 var(--mono);transform:rotate(8deg);z-index:4}.ticker{overflow:hidden;background:var(--coral);border-block:1px solid var(--ink);padding:13px 0;white-space:nowrap}.ticker div{font:500 13px var(--mono);letter-spacing:.12em;text-align:center}.ticker span{margin:0 26px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card{position:relative;min-height:465px;padding:28px;border:1px solid var(--ink);display:flex;flex-direction:column;transition:.25s}.feature-card:hover{transform:translateY(-7px);box-shadow:8px 8px 0 var(--ink)}.feature-book{background:#ffe6dc}.feature-apps{background:#e0edff}.feature-video{background:#ebe3ff}.card-number{position:absolute;right:25px;top:23px;font:500 13px var(--mono)}.feature-icon{height:145px;display:grid;place-items:center;margin:20px 0 25px;font:800 42px var(--mono);border:1px solid var(--ink);background:#fff;transform:rotate(-2deg)}.feature-apps .feature-icon{background:var(--blue);transform:rotate(2deg)}.feature-video .feature-icon{background:var(--violet);border-radius:50%;width:145px;margin-inline:auto}.feature-card h3{font-size:27px;letter-spacing:-.03em;margin:0 0 10px}.feature-card>p:not(.eyebrow){color:#5d5954;margin:0}.text-link{margin-top:auto;padding-top:25px;border-top:1px solid rgba(0,0,0,.25);font:500 12px var(--mono)}.spotlight-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;align-items:center}.spotlight-copy p:not(.eyebrow){color:#bdb8b0;font-size:17px;margin:25px 0 35px;max-width:490px}.spotlight-image{position:relative;background:#eee;padding:24px;transform:rotate(2deg)}.spotlight-image img{width:100%;aspect-ratio:1;object-fit:cover}.image-sticker{position:absolute;right:-25px;bottom:-25px;width:115px;height:115px;border-radius:50%;background:var(--coral);color:var(--ink);display:grid;place-items:center;text-align:center;font:700 12px var(--mono);transform:rotate(-8deg)}.manifesto blockquote{font-size:clamp(38px,6vw,76px);line-height:1.25;letter-spacing:-.055em;margin:30px 0 80px;max-width:1050px}.manifesto-points{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}.manifesto-points>div{padding:34px 38px 0 0;border-right:1px solid var(--line)}.manifesto-points>div+div{padding-left:38px}.manifesto-points>div:last-child{border:0}.manifesto-points span,.chapter>span{font:500 11px var(--mono);color:var(--coral)}.manifesto-points h3{font-size:21px;margin:22px 0 7px}.manifesto-points p{color:var(--muted);margin:0}
.page-hero{padding:105px 0;border-bottom:1px solid var(--line)}.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:100px;align-items:center}.page-hero p:not(.eyebrow){font-size:18px;color:var(--muted);max-width:620px}.compact-hero{padding-bottom:80px}.compact-hero .container>p:last-child{font-size:18px;color:var(--muted);max-width:600px;margin-top:25px}.book-hero{background:#f3ece3}.book-object{height:500px;position:relative;perspective:900px}.book-cover{position:absolute;inset:15px 35px 45px 35px;background:var(--yellow);border:1px solid var(--ink);padding:35px;display:flex;flex-direction:column;transform:rotateY(-12deg) rotateZ(2deg);box-shadow:-12px 12px 0 #e5b92f,12px 20px 0 rgba(0,0,0,.15)}.book-cover small{font:500 10px var(--mono);letter-spacing:.15em}.book-cover strong{font-size:54px;line-height:1.05;margin-top:55px;letter-spacing:-.06em}.book-cover>span{font-size:12px;margin-top:12px}.book-code{margin:auto 0 15px;font:700 38px var(--mono);color:var(--coral)}.book-cover>b{font-size:14px}.chapter-list{border-top:1px solid var(--ink)}.chapter{display:grid;grid-template-columns:120px 1fr 100px;gap:25px;align-items:center;padding:32px 12px;border-bottom:1px solid var(--line)}.chapter h3{font-size:22px;margin:0 0 4px}.chapter p{margin:0;color:var(--muted)}.chapter>b{text-align:right;font:500 11px var(--mono)}.section-paper{background:#e9e4db}.split-content{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.check-list>div{display:flex;gap:20px;padding:25px 0;border-bottom:1px solid #c4beb4}.check-list span{display:grid;place-items:center;flex:0 0 38px;height:38px;background:var(--coral);border-radius:50%}.check-list p{margin:0;color:var(--muted)}.check-list strong{display:block;color:var(--ink);font-size:18px;margin-bottom:3px}.resource-banner{background:var(--coral);border:1px solid var(--ink);padding:55px;display:flex;align-items:center;justify-content:space-between;gap:40px;box-shadow:10px 10px 0 var(--ink)}.resource-banner h2{font-size:42px;margin:0}.resource-banner p:not(.eyebrow){margin:8px 0 0}
.apps-section{padding-top:65px}.app-catalog{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.app-card{min-height:410px;border:1px solid var(--ink);padding:28px;display:flex;flex-direction:column}.app-card:first-child{grid-column:span 2;min-height:390px}.accent-coral{background:#ffe0d7}.accent-blue{background:#dcecff}.accent-green{background:#dff3e3}.accent-violet{background:#eae2fa}.accent-yellow{background:#fff0b2}.app-card-top{display:flex;align-items:center;gap:9px;font:500 11px var(--mono)}.app-card-top b{margin-left:auto}.status-dot{width:8px;height:8px;border-radius:50%;background:#777}.status-dot.is-live{background:#20a64a;box-shadow:0 0 0 4px rgba(32,166,74,.15)}.app-symbol{font:800 clamp(44px,7vw,80px) var(--mono);margin:auto 0 25px}.app-card h2{font-size:34px;margin:0}.app-card>p{color:#5e5b56;max-width:600px}.app-card-bottom{display:flex;justify-content:space-between;border-top:1px solid rgba(0,0,0,.25);padding-top:18px;margin-top:auto;font:500 11px var(--mono)}.app-card-bottom a{font-weight:700}.coming-soon{color:#777}.mini-cta{text-align:center}.mini-cta p:not(.eyebrow){color:#aaa}.mini-cta .button{margin-top:22px}
.demo-hero{padding:65px 0 55px;border-bottom:1px solid var(--line)}.back-link{font:500 11px var(--mono)}.demo-title-row{display:flex;justify-content:space-between;align-items:flex-end;margin-top:55px}.demo-count{display:flex;align-items:center;gap:15px;border-left:1px solid var(--line);padding-left:30px}.demo-count strong{font:500 48px var(--mono);color:var(--coral)}.demo-count span{font:500 10px/1.4 var(--mono)}.demo-section{padding-top:65px}.demo-grid{display:grid;grid-template-columns:1.1fr .9fr;border:1px solid var(--ink);background:#fff}.wordcloud-panel{padding:35px;background:#e7e2d9}.wordcloud-panel img{width:100%;aspect-ratio:1;object-fit:cover;border:1px solid var(--ink)}.input-panel{padding:55px 45px}.step-label{font:500 11px var(--mono);color:var(--coral)}.input-panel h2{font-size:42px;line-height:1.18;margin:20px 0 14px}.input-panel>p{color:var(--muted)}.notice{padding:12px 15px;margin:20px 0;font-size:13px;border:1px solid}.notice-error{background:#ffe2dc;color:#9a1f08}.notice-success{background:#dcf5e2;color:#156629}.word-form{margin:35px 0}.word-form label{display:block;font-size:12px;font-weight:700;margin-bottom:8px}.form-row{display:flex}.form-row input{min-width:0;flex:1;border:1px solid var(--ink);border-right:0;background:#faf8f3;padding:0 16px;outline:0}.form-row input:focus{box-shadow:inset 0 0 0 2px var(--coral)}.form-row .button:hover{transform:none;box-shadow:none}.qr-block{display:flex;align-items:center;gap:18px;padding-top:25px;border-top:1px solid var(--line)}.qr-block img{width:80px;height:80px}.qr-block p{font-size:12px;color:var(--muted);margin:0}.qr-block strong{display:block;color:var(--ink);font-size:14px}.privacy-note{font-size:11px!important}.how-it-works{padding:70px 0;background:var(--yellow);border-block:1px solid var(--ink)}.process-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:35px}.process-grid>div{padding-right:35px}.process-grid>div+div{padding-left:35px;border-left:1px solid rgba(0,0,0,.3)}.process-grid b{font:500 12px var(--mono)}.process-grid h3{font-size:21px;margin:15px 0 5px}.process-grid p{margin:0;color:#5d5748}
.video-hero{background:#e9e1fa}.video-stage{border:1px solid var(--ink);background:var(--ink);padding:14px;box-shadow:10px 10px 0 var(--coral);transform:rotate(2deg)}.video-screen{aspect-ratio:16/10;background:var(--violet);display:grid;place-items:center;position:relative;text-align:center}.video-screen span{position:absolute;width:80px;height:80px;border-radius:50%;display:grid;place-items:center;background:var(--coral);font-size:28px}.video-screen b{font:800 46px/1 var(--mono);opacity:.23}.video-caption{color:#fff;padding:12px 8px 0;font:500 11px var(--mono)}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.video-card{border-bottom:1px solid var(--ink);padding-bottom:25px}.video-thumb{aspect-ratio:16/10;border:1px solid var(--ink);padding:20px;position:relative;margin-bottom:24px}.video-thumb span{font:500 11px var(--mono)}.video-thumb b{position:absolute;right:20px;bottom:16px;text-align:right;font:800 38px/1 var(--mono)}.thumb-one{background:var(--yellow)}.thumb-two{background:var(--blue)}.thumb-three{background:var(--coral)}.video-card h3{font-size:22px;margin:0 0 6px}.video-card>p:last-child{color:var(--muted)}.newsletter-section{background:#e7e2d9}.centered-copy{text-align:center;max-width:740px}.centered-copy>p:not(.eyebrow){color:var(--muted)}.centered-copy .button{margin-top:20px}
.about-hero{padding-bottom:80px}.about-intro h1{max-width:1050px}.about-lead{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px;margin:55px 0 0 32%}.about-lead p{margin:0!important}.profile-section{background:#e6edf7}.profile-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:100px;align-items:center}.profile-art{height:500px;background:var(--blue);border:1px solid var(--ink);position:relative;overflow:hidden;box-shadow:12px 12px 0 var(--ink)}.profile-monogram{font:900 370px/.95 var(--sans);position:absolute;left:10px;bottom:-40px;color:var(--yellow);text-shadow:2px 2px 0 var(--ink)}.profile-label,.profile-year{position:absolute;background:var(--coral);padding:12px;font:700 11px/1.3 var(--mono);border:1px solid var(--ink)}.profile-label{right:20px;top:20px}.profile-year{left:20px;top:20px;background:#fff}.profile-copy>p:not(.eyebrow){font-size:17px;color:#5a5c61}.signature{font:italic 38px cursive;margin-top:30px;transform:rotate(-5deg)}.interest-section{background:var(--ink);color:#fff}.interest-grid{display:grid;grid-template-columns:repeat(2,1fr);margin-top:50px}.interest-grid>div{padding:35px;border-top:1px solid #555}.interest-grid>div:nth-child(odd){border-right:1px solid #555}.interest-grid span{font:500 11px var(--mono);color:var(--yellow)}.interest-grid h3{font-size:24px;margin:30px 0 8px}.interest-grid p{color:#aaa;margin:0}.created-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.created-grid a{min-height:300px;padding:30px;border:1px solid var(--ink);display:flex;flex-direction:column;transition:.2s}.created-grid a:nth-child(1){background:#fff0b5}.created-grid a:nth-child(2){background:#ffe0d8}.created-grid a:nth-child(3){background:#dfeeff}.created-grid a:hover{transform:translateY(-5px);box-shadow:7px 7px 0 var(--ink)}.created-grid b{font:500 11px var(--mono)}.created-grid h3{font-size:24px;margin:auto 0 8px}.created-grid p{color:var(--muted)}.created-grid span{font:500 11px var(--mono);border-top:1px solid rgba(0,0,0,.25);padding-top:15px}
.contact-hero{min-height:680px;padding:110px 0}.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:70px}.contact-hero .contact-title{font-size:clamp(48px,4.7vw,66px);line-height:1.14}.contact-grid>div:first-child>p:last-child{font-size:18px;color:var(--muted);max-width:520px}.contact-list{border-top:1px solid var(--ink)}.contact-list>a,.contact-pending{display:grid;grid-template-columns:140px 1fr 30px;align-items:center;padding:30px 5px;border-bottom:1px solid var(--line)}.contact-list>a:hover strong{color:var(--coral)}.contact-list span{font:500 10px var(--mono)}.contact-list strong{min-width:0;font-size:20px;transition:.2s}.contact-list b{text-align:right}.contact-pending{color:#8a8680}.contact-note{background:var(--coral);padding:35px 0;border-block:1px solid var(--ink)}.contact-note .container{display:flex;gap:100px}.contact-note span{font:500 11px var(--mono)}.contact-note p{margin:0}.not-found{min-height:650px;display:grid;place-items:center;text-align:center;padding:80px 0}.not-found>div>strong{font:900 clamp(130px,25vw,300px)/.8 var(--mono);color:var(--coral)}.not-found h1{font-size:40px;line-height:1.2}.not-found p{color:var(--muted)}
.site-footer{background:var(--ink);color:#fff;padding:75px 0 25px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:90px}.brand-footer .brand-mark{color:var(--ink)}.footer-grid>div:first-child>p{max-width:480px;color:#aaa;margin-top:25px}.footer-links{display:flex;flex-direction:column;gap:10px}.footer-links strong{font:500 11px var(--mono);color:var(--yellow);margin-bottom:12px}.footer-links a{color:#bbb;font-size:14px}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid #444;margin-top:65px;padding-top:22px;display:flex;justify-content:space-between;color:#777;font:400 10px var(--mono)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}.reveal.is-visible{opacity:1;transform:none}.reveal-delay{transition-delay:.12s}.reveal-delay-2{transition-delay:.24s}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.reveal{opacity:1;transform:none;transition:none}}
@media(max-width:900px){.container{width:min(calc(100% - 32px),var(--max))}.nav-toggle{display:block}.main-nav{display:none;position:absolute;left:16px;right:16px;top:72px;background:var(--paper);border:1px solid var(--ink);padding:12px;box-shadow:6px 6px 0 var(--ink);flex-direction:column;align-items:stretch}.main-nav.is-open{display:flex}.main-nav a{text-align:center}.hero{padding-top:55px}.hero-grid,.page-hero-grid,.spotlight-grid,.split-content,.profile-grid,.contact-grid{grid-template-columns:1fr}.hero-art{order:-1}.portrait-card{height:390px}.hero-grid{gap:60px}.section{padding:80px 0}.feature-grid,.video-grid,.created-grid{grid-template-columns:1fr}.feature-card{min-height:420px}.section-heading{display:block}.section-heading>p{margin-top:20px}.spotlight-grid,.page-hero-grid,.profile-grid,.contact-grid{gap:55px}.app-catalog{grid-template-columns:1fr}.app-card:first-child{grid-column:auto}.demo-grid{grid-template-columns:1fr}.manifesto-points{grid-template-columns:1fr}.manifesto-points>div,.manifesto-points>div+div{padding:28px 0;border-right:0;border-bottom:1px solid var(--line)}.about-lead{margin-left:0}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:span 2}.book-object{height:430px}}
@media(max-width:600px){.nav-wrap{height:70px}.brand-mark{width:36px;height:36px}.brand-copy strong{font-size:16px}.hero h1,.page-hero h1,.demo-hero h1,.contact-hero h1{font-size:48px}.contact-hero .contact-title{font-size:40px}.hero-art{margin-inline:5px}.portrait-card{height:330px}.code-window pre{font-size:11px;padding:20px}.floating-note{width:75px;height:75px;font-size:9px}.hero-meta{gap:18px;justify-content:space-between}.hero-meta div{display:block}.hero-meta span{display:block}.feature-icon{height:115px}.section-heading h2,.spotlight-copy h2,.split-content h2,.mini-cta h2,.centered-copy h2,.profile-copy h2,.interest-section h2{font-size:36px}.resource-banner{display:block;padding:35px}.resource-banner .button{margin-top:25px}.chapter{grid-template-columns:75px 1fr}.chapter>b{display:none}.demo-title-row{display:block}.demo-count{margin-top:30px;border-left:0;border-top:1px solid var(--line);padding:18px 0 0}.input-panel{padding:38px 24px}.input-panel h2{font-size:34px}.form-row{display:block}.form-row input{height:52px;width:100%;border-right:1px solid var(--ink);border-bottom:0}.form-row .button{width:100%}.process-grid,.interest-grid{grid-template-columns:1fr}.process-grid>div,.process-grid>div+div{padding:25px 0;border-left:0;border-top:1px solid rgba(0,0,0,.25)}.interest-grid>div:nth-child(odd){border-right:0}.about-lead{grid-template-columns:1fr;gap:15px}.profile-art{height:390px}.profile-monogram{font-size:290px}.contact-list>a,.contact-pending{grid-template-columns:95px 1fr 20px}.contact-list strong{font-size:14px;word-break:break-all}.contact-note .container{display:block}.contact-note p{margin-top:12px}.footer-grid{grid-template-columns:1fr;gap:35px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* YouTube channel */
.youtube-channel-hero{background:#eee8df;overflow:hidden}.channel-profile{position:relative;min-height:500px;display:grid;place-items:center}.channel-profile>img{position:relative;z-index:2;width:min(360px,78%);aspect-ratio:1;border-radius:50%;object-fit:cover;border:2px solid var(--ink);box-shadow:12px 12px 0 var(--coral)}.profile-rings{position:absolute;width:480px;height:480px;border:2px solid var(--ink);border-radius:50%}.profile-rings:before,.profile-rings:after{content:"";position:absolute;border:1px solid var(--ink);border-radius:50%}.profile-rings:before{inset:30px}.profile-rings:after{inset:-38px}.youtube-badge{position:absolute;z-index:3;right:2%;top:12%;padding:13px 16px;background:var(--coral);border:1px solid var(--ink);box-shadow:5px 5px 0 var(--ink);font:700 11px var(--mono);transform:rotate(7deg)}.channel-handle{position:absolute;z-index:3;left:0;bottom:8%;display:flex;flex-direction:column;background:var(--yellow);border:1px solid var(--ink);padding:14px 20px;transform:rotate(-3deg)}.channel-handle strong{font-size:16px}.channel-handle span{font:500 10px var(--mono);margin-top:3px}.channel-story{padding:90px 0;background:var(--ink);color:#fff}.story-grid{display:grid;grid-template-columns:170px 1.2fr .8fr;gap:55px;align-items:start}.story-grid blockquote{font-size:clamp(30px,4.5vw,54px);line-height:1.3;letter-spacing:-.04em;margin:0}.story-copy{color:#aaa;font-size:16px}.story-copy p:first-child{margin-top:0}.youtube-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.youtube-video-card{border:1px solid var(--ink);background:#fff;transition:.25s}.youtube-video-card:hover{transform:translateY(-6px);box-shadow:8px 8px 0 var(--ink)}.youtube-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#ddd;border-bottom:1px solid var(--ink)}.youtube-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.youtube-video-card:hover .youtube-thumb img{transform:scale(1.04)}.play-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:62px;height:62px;border-radius:50%;background:var(--coral);border:1px solid var(--ink);box-shadow:4px 4px 0 var(--ink);padding-left:4px}.youtube-thumb>b{position:absolute;left:12px;bottom:12px;padding:6px 9px;background:var(--yellow);border:1px solid var(--ink);font:500 9px var(--mono)}.youtube-card-copy{padding:25px}.youtube-card-copy h3{font-size:22px;line-height:1.35;margin:0 0 8px}.youtube-card-copy>p:not(.eyebrow){color:var(--muted);font-size:14px;min-height:68px}.youtube-card-copy>span{display:block;border-top:1px solid var(--line);padding-top:16px;margin-top:22px;font:500 11px var(--mono)}.channel-more{text-align:center;margin-top:45px}.youtube-topics{background:var(--ink);color:#fff}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:40px}.topic-grid>div{padding:10px 40px 10px 0}.topic-grid>div+div{padding-left:40px;border-left:1px solid #4a4a4a}.topic-grid span{font:500 11px var(--mono);color:var(--coral)}.topic-grid h3{font-size:25px;margin:25px 0 8px}.topic-grid p{color:#aaa;margin:0}.youtube-subscribe{background:#e5ded4}.subscribe-card{display:flex;align-items:center;justify-content:space-between;gap:50px;padding:55px;background:var(--yellow);border:1px solid var(--ink);box-shadow:10px 10px 0 var(--ink)}.subscribe-card h2{font-size:clamp(34px,5vw,56px);line-height:1.15;letter-spacing:-.045em;margin:0}.subscribe-card p:not(.eyebrow){color:#5d5748;max-width:650px}
@media(max-width:900px){.story-grid{grid-template-columns:1fr}.youtube-video-grid{grid-template-columns:1fr}.youtube-video-card{display:grid;grid-template-columns:.9fr 1.1fr}.youtube-thumb{height:100%;aspect-ratio:auto}.youtube-card-copy>p:not(.eyebrow){min-height:0}.subscribe-card{display:block}.subscribe-card .button{margin-top:25px}}
@media(max-width:600px){.channel-profile{min-height:390px}.profile-rings{width:340px;height:340px}.channel-handle{left:2%;bottom:2%}.youtube-badge{right:0}.youtube-video-card{display:block}.youtube-thumb{aspect-ratio:16/10}.topic-grid{grid-template-columns:1fr}.topic-grid>div,.topic-grid>div+div{padding:27px 0;border-left:0;border-top:1px solid #4a4a4a}.subscribe-card{padding:35px 25px}}

/* Book section navigation and preface */
.book-subnav{position:sticky;top:82px;z-index:40;background:rgba(247,244,238,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--ink)}.book-subnav-inner{min-height:60px;display:flex;align-items:center;gap:8px}.book-subnav-label{font:500 10px var(--mono);letter-spacing:.13em;margin-right:20px;color:var(--muted)}.book-subnav a{padding:10px 16px;border:1px solid transparent;font:500 12px var(--mono);white-space:nowrap}.book-subnav a:hover,.book-subnav a.active{background:var(--ink);color:#fff}.book-subnav .book-code-link{margin-left:auto;border-left:1px solid var(--line);padding-left:25px}.preface-section{background:#fbf9f5}.preface-layout{display:grid;grid-template-columns:280px minmax(0,760px);justify-content:space-between;gap:90px}.preface-aside{align-self:start;position:sticky;top:175px;border-top:3px solid var(--ink);padding-top:25px}.preface-aside h2{font-size:58px;letter-spacing:-.055em;margin:0 0 30px}.preface-aside>span,.preface-aside>b{display:block}.preface-aside>span{color:var(--muted);font-size:14px}.preface-aside>b{font:500 11px var(--mono);margin-top:9px}.preface-copy{font-size:18px;line-height:2;color:#45423e}.preface-copy p{margin:0 0 32px}.preface-copy strong{color:var(--ink)}.preface-lead{font-size:26px!important;line-height:1.65!important;letter-spacing:-.025em;color:var(--ink);padding-bottom:35px;border-bottom:1px solid var(--line)}.preface-callout{margin:55px 0;padding:38px 42px;background:var(--yellow);border:1px solid var(--ink);box-shadow:8px 8px 0 var(--ink)}.preface-callout span{display:block;font:500 10px var(--mono);margin-bottom:18px}.preface-callout strong{font-size:27px;line-height:1.5;letter-spacing:-.025em}.preface-closing{font-size:21px;font-weight:600;color:var(--ink);padding-top:32px;border-top:1px solid var(--ink)}.book-apps-hero{background:#e7eef8}.book-hero+.preface-section{border-top:1px solid var(--line)}
@media(max-width:900px){.book-subnav{top:70px}.book-subnav-inner{overflow-x:auto}.book-subnav-label{display:none}.book-subnav .book-code-link{margin-left:0}.preface-layout{grid-template-columns:1fr;gap:45px}.preface-aside{position:static;display:grid;grid-template-columns:1fr auto;align-items:end}.preface-aside .eyebrow{grid-column:1/-1}.preface-aside h2{margin:0}.preface-copy{max-width:none}}
@media(max-width:600px){.book-subnav .container{width:100%;padding:0 12px}.book-subnav a{padding:10px 12px}.book-subnav .book-code-link{display:none}.preface-aside{display:block}.preface-aside h2{font-size:44px;margin-bottom:15px}.preface-copy{font-size:16px;line-height:1.9}.preface-lead{font-size:21px!important}.preface-callout{padding:28px 24px;margin:42px 0;box-shadow:6px 6px 0 var(--ink)}.preface-callout strong{font-size:21px}.preface-closing{font-size:18px}}

/* Advanced book app note */
.advanced-note{background:var(--yellow);border-bottom:1px solid var(--ink);padding:26px 0}.advanced-note .container{display:grid;grid-template-columns:210px 1fr;gap:40px;align-items:start}.advanced-note span{font:500 10px var(--mono);letter-spacing:.12em;padding-top:5px}.advanced-note p{margin:0;color:#514b3d}.advanced-note strong{display:block;color:var(--ink);font-size:18px;margin-bottom:3px}.app-catalog:has(.app-card:only-child){grid-template-columns:1fr}.app-catalog .app-card:only-child{grid-column:auto;min-height:430px}
@media(max-width:600px){.advanced-note .container{grid-template-columns:1fr;gap:8px}.advanced-note strong{font-size:16px}}

/* Practice app preview */
.app-preview{width:min(280px,55vw);aspect-ratio:1;margin:42px 0 28px;background:#fff;border:1px solid var(--ink);padding:12px;box-shadow:8px 8px 0 var(--ink);transform:rotate(-1.5deg);overflow:hidden}.app-preview img{width:100%;height:100%;object-fit:cover}.app-preview span{width:100%;height:100%;display:grid;place-items:center;font:800 54px var(--mono)}

/* YouTube hero message */
.youtube-channel-hero .page-hero-grid{grid-template-columns:1.15fr .85fr;gap:70px}.youtube-channel-hero .youtube-hero-title{font-size:clamp(48px,4.8vw,68px);line-height:1.12;letter-spacing:-.055em;max-width:720px}.youtube-hero-title span,.youtube-hero-title em{display:block}.youtube-channel-hero .page-hero-grid>div:first-child>p:not(.eyebrow){max-width:680px}
@media(max-width:900px){.youtube-channel-hero .page-hero-grid{grid-template-columns:1fr}.youtube-channel-hero .youtube-hero-title{max-width:760px}}
@media(max-width:600px){.youtube-channel-hero .youtube-hero-title{font-size:44px;line-height:1.17}.youtube-hero-title span,.youtube-hero-title em{display:inline}.youtube-hero-title span:after{content:" "}}


/* Book app showcase redesign */
.apps-section{padding:84px 0 110px;background:#f2eee7}.app-catalog{display:grid;grid-template-columns:1fr;gap:30px}.app-card,.app-card:first-child,.app-catalog .app-card:only-child{grid-column:auto;min-height:0;padding:38px;border:1px solid var(--ink);box-shadow:12px 12px 0 var(--ink)}.app-card-top{padding-bottom:28px;border-bottom:1px solid rgba(0,0,0,.3);font:500 11px var(--mono)}.app-live-state{display:flex;align-items:center;gap:10px}.app-card-top>b{font:500 11px var(--mono);letter-spacing:.08em}.app-card-layout{display:grid;grid-template-columns:minmax(320px,.9fr) minmax(0,1.1fr);gap:72px;align-items:center;padding-top:44px}.app-visual{min-width:0}.app-preview{width:100%;max-width:470px;aspect-ratio:1;margin:0;background:#fff;border:1px solid var(--ink);padding:16px;box-shadow:10px 10px 0 var(--ink);transform:rotate(-1.2deg);overflow:hidden}.app-preview img{width:100%;height:100%;object-fit:cover}.app-preview-caption{display:flex;gap:14px;align-items:center;margin:24px 0 0;color:#625d57;font-size:13px}.app-preview-caption span,.app-kicker{font:500 10px var(--mono);letter-spacing:.1em}.app-preview-caption span{color:var(--ink)}.app-card-content{display:flex;flex-direction:column;min-width:0}.app-kicker{margin:0 0 18px;color:#6c625d}.app-card-content h2{font-size:clamp(48px,5vw,68px);line-height:1.05;letter-spacing:-.055em;margin:0}.app-description{max-width:620px;margin:25px 0 0;color:#514d48;font-size:17px;line-height:1.85}.app-feature-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}.app-feature-list span{padding:9px 13px;background:rgba(255,255,255,.55);border:1px solid rgba(0,0,0,.35);font:500 11px var(--mono)}.app-card-actions{margin-top:42px;padding-top:28px;border-top:1px solid rgba(0,0,0,.3)}.app-availability{display:flex;align-items:center;gap:10px;margin-bottom:16px;font:500 11px var(--mono)}.app-availability i{display:block;flex:0 0 auto}.app-launch-button{min-height:68px;width:100%;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:var(--coral);border:1px solid var(--ink);box-shadow:6px 6px 0 var(--ink);font-size:17px;font-weight:800;transition:transform .2s,box-shadow .2s}.app-launch-button b{font:500 28px var(--mono)}.app-launch-button:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 var(--ink)}
@media(max-width:900px){.app-card-layout{grid-template-columns:1fr;gap:52px}.app-preview{max-width:540px}.app-card-content{max-width:680px}}
@media(max-width:600px){.apps-section{padding:52px 0 78px}.app-card,.app-card:first-child,.app-catalog .app-card:only-child{padding:22px;box-shadow:7px 7px 0 var(--ink)}.app-card-top{padding-bottom:20px}.app-card-layout{padding-top:30px;gap:38px}.app-preview{padding:10px;box-shadow:6px 6px 0 var(--ink)}.app-preview-caption{display:block;font-size:12px}.app-preview-caption span{display:block;margin-bottom:4px}.app-card-content h2{font-size:44px}.app-description{font-size:15px;line-height:1.75}.app-feature-list{display:grid;grid-template-columns:repeat(2,1fr)}.app-feature-list span{text-align:center;padding:9px 6px}.app-card-actions{margin-top:32px;padding-top:24px}.app-launch-button{min-height:64px;padding:0 19px;font-size:16px;box-shadow:5px 5px 0 var(--ink)}}