:root{color-scheme:dark;--bg:#101719;--ink:#e9e6da;--muted:#9eaead;--line:#344244;--accent:#cbb78f;font-family:Arial,'Noto Sans KR',sans-serif;background:var(--bg);color:var(--ink)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}a{color:inherit;text-underline-offset:5px}button,input,select,textarea{font:inherit}button,select{color:var(--ink);background:#192529;border:1px solid #53625e;border-radius:4px;min-height:48px;padding:12px 19px;cursor:pointer}button:hover,button[aria-pressed=true]{border-color:var(--accent);background:#2b3837}button:active{transform:translateY(1px)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:5px}button:disabled{opacity:.4;cursor:default}header{padding:23px 4vw;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);font-size:12px}header a{text-decoration:none}header b{font-size:18px}header span{color:var(--muted);margin-left:12px;letter-spacing:2px}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;z-index:20;background:var(--bg);padding:15px}main{max-width:1600px;margin:auto}h1,h2,h3,p{margin:0}h1,h2{font-family:Georgia,'Noto Serif KR',serif;font-weight:400;line-height:1.35;word-break:keep-all}h1{font-size:clamp(28px,3.2vw,51px);margin:16px 0}h2{font-size:clamp(28px,3vw,43px);margin:15px 0 30px}p{line-height:1.85;word-break:keep-all}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--accent)}.intro{padding:36px 4vw 0}.intro>p:last-child{color:var(--muted);font-size:14px}.stage{position:relative;padding:0 4vw;min-height:500px}.instrument{width:100%;margin:auto;max-width:1150px}.instrument svg,#detail svg{display:block;width:100%;height:auto;max-height:65dvh;min-height:280px}#turn-area{touch-action:pan-y;outline-offset:-4px}body[data-experiment=fishing-reel] #turn-area,body[data-experiment=projector] #turn-area,body[data-experiment=watch] #turn-area{touch-action:none;cursor:grab}.tools{display:flex;gap:15px;align-items:end;flex-wrap:wrap;padding:0 4vw 20px}.tools label{display:grid;gap:9px;min-width:150px;font-size:12px;color:var(--muted)}input[type=range]{accent-color:var(--accent);min-height:36px;width:100%}output{color:var(--ink);font-variant-numeric:tabular-nums}.primary{background:var(--accent);color:#10201e;border-color:var(--accent)}.feedback{margin:0 4vw;padding:14px 0;border-top:1px solid var(--line);font-size:13px;color:var(--accent);min-height:54px;font-variant-numeric:tabular-nums}.next{display:flex;justify-content:space-between;align-items:center;margin:25px 4vw 40px;padding:20px 0;border-bottom:1px solid var(--line);font-size:14px}.next a{text-decoration:none}.next small{color:var(--muted);font-size:11px}.development{font-size:12px;color:var(--muted);margin:0 4vw 25px}.inside,.making{padding:65px 4vw;border-top:1px solid var(--line);scroll-margin-top:20px}.observation{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:35px}.parts{display:grid;align-content:center;gap:10px}.parts button{text-align:left;line-height:1.5}#record,#part-copy{color:var(--accent);font-size:14px;margin:12px 0;min-height:30px}#part-copy{color:var(--ink);max-width:800px}.limits{font-size:13px;color:var(--muted);max-width:850px;margin:18px 0}.making{display:grid;grid-template-columns:1fr 1.5fr;gap:50px}.making article{margin-bottom:25px}.making h3{font-size:18px;margin-bottom:10px}.making p,.making li{color:var(--muted);font-size:14px}.making ul{padding-left:20px;line-height:2}.sources a{overflow-wrap:anywhere}.review-nav{display:flex;flex-wrap:wrap;gap:12px;padding:24px 4vw;border-top:1px solid var(--line);font-size:13px}.review-nav a[aria-current]{color:var(--accent)}footer{display:flex;justify-content:space-between;gap:30px;padding:35px 4vw;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}footer b{color:var(--ink);font-size:20px}footer p{margin-top:14px}.typing{display:block;width:calc(100% - 8vw);margin:24px 4vw;background:transparent;border:0;border-bottom:1px solid var(--line);resize:vertical;color:var(--ink);padding:14px;font-size:22px;line-height:1.5;min-height:100px}.keybed{display:grid;gap:9px;margin:22px 4vw;padding:30px;border-radius:13px;background:linear-gradient(140deg,#5b6560,#27322e);box-shadow:0 25px 50px #0007}.keyrow{display:flex;justify-content:center;gap:7px}.keyrow button{padding:8px;width:7.3%;min-width:0;box-shadow:0 5px 0 #111a16;background:linear-gradient(#e0e0ce,#b7bfac);color:#23362a;border:1px solid #7b8d7c;font-weight:bold}.keyrow button:active{transform:translateY(4px);box-shadow:0 1px 0 #111a16}.keyrow .space{width:45%}body[data-experiment=keyboard] .stage{display:none}body[data-experiment=camera] .instrument{max-width:1080px}body[data-experiment=watch] .stage{background:radial-gradient(ellipse at center,#2c2b2155,transparent 60%)}body[data-experiment=projector] .stage{background:linear-gradient(90deg,#1b1b18,transparent)}.review-list{max-width:1000px;margin:35px auto;padding:0 25px}.review-list a{display:grid;grid-template-columns:50px 1fr auto;gap:20px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line);text-decoration:none}.review-list small{font-size:12px;color:var(--muted)}.design-sheets{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:25px}.design-sheets img{width:100%;height:auto}.design-sheets a:last-child{grid-column:1/-1}
@media(min-width:1100px){body[data-experiment=watch] .intro{position:absolute;max-width:370px;z-index:1}body[data-experiment=watch] .instrument{max-width:1050px;margin-left:auto;margin-right:0}body[data-experiment=watch] .stage{min-height:580px}body[data-experiment=espresso-machine] .stage{min-height:500px}body[data-experiment=keyboard] .keybed{padding:45px 50px}}
@media(max-width:700px){header{padding:20px}header span{display:none}.intro{padding:28px 20px 0}h1{font-size:29px}.intro>p:last-child{font-size:13px}.stage{padding:0 8px;min-height:0}.instrument svg{max-height:none;min-height:250px}body[data-experiment=watch] .instrument svg{min-height:330px}.tools{padding:0 20px 15px;gap:14px}.tools label{flex:1;min-width:120px}.tools .primary{width:100%}.feedback{margin:0 20px;min-height:70px}.next{margin:15px 20px 30px;display:grid;gap:17px}.development{margin:0 20px 24px}.inside,.making{padding:40px 20px}.observation{display:block}#detail svg{min-height:250px;max-height:none}.parts{grid-template-columns:1fr 1fr;gap:9px}.parts button{padding:10px;font-size:13px}.making{display:block}.making-content{margin-top:35px}footer{padding:28px 20px;display:block}footer>div+div{margin-top:22px}.typing{font-size:19px;margin:20px;width:calc(100% - 40px)}.keybed{margin:20px 9px;padding:15px 8px;gap:6px}.keyrow{gap:4px}.keyrow button{width:9%;min-height:44px;padding:4px;font-size:12px}.design-sheets{grid-template-columns:1fr}.review-list a{grid-template-columns:28px 1fr;gap:12px}.review-list small{grid-column:2}.review-nav{padding:20px;gap:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.primary:hover,.primary:active{background:var(--accent);color:#10201e;filter:brightness(1.08)}

@media(max-width:700px){body[data-experiment=espresso-machine] .instrument svg,body[data-experiment=fishing-reel] .instrument svg{min-height:310px;max-height:46dvh} .keyrow{overflow-x:auto;justify-content:flex-start;padding:0 3px 7px;scrollbar-width:thin}.keyrow button{flex:0 0 44px}.keyrow .space{flex-basis:60%;margin:auto}}

/* Quiet author byline above the series name. */
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