:root{
  --bg:#f4f3ef;
  --paper:#fbfaf7;
  --ink:#0b0b0a;
  --text:#2b2a27;
  --muted:#6b6964;
  --line:#dcd9d1;
  --soft:#e9e7e1;
  --dark:#111110;
  --dark-2:#1c1c1a;
  --dark-line:#2e2e2b;
  --dark-text:#a9a7a0;
  --sans:"SUIT Variable","SUIT","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  --mono:"Geist Mono","JetBrains Mono",ui-monospace,"Courier New",monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  --wrap:1180px;
  --gut:40px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:110px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.7 var(--sans);word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--ink);color:var(--bg);padding:8px 14px;border-radius:999px}
.skip:focus{left:12px}
main{min-height:70vh;outline:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.narrow{max-width:760px;margin:0 auto;padding:0 var(--gut)}

/* mono label */
.tag{display:inline-flex;align-items:center;gap:8px;font:500 11px/1 var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:7px 12px;background:var(--paper)}
.mono{font:500 11px/1.4 var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 22px;border-radius:999px;font:700 15px/1 var(--sans);letter-spacing:-.01em;transition:transform .3s var(--ease),background-color .2s ease,color .2s ease,border-color .2s ease}
.btn i{font-style:normal;transition:transform .3s var(--ease)}
.btn:hover i{transform:translate(2px,-2px)}
.btn-dark{background:var(--ink);color:var(--bg)}
.btn-dark:hover{background:#2a2a28}
.btn-line{border:1px solid var(--line);background:var(--paper)}
.btn-line:hover{border-color:var(--ink)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* header */
.top{position:fixed;inset:14px 0 auto;z-index:50;padding:0 var(--gut);pointer-events:none}
.top-bar{pointer-events:auto;max-width:var(--wrap);margin:0 auto;height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 12px 0 18px;background:rgba(251,250,247,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(220,217,209,.8);border-radius:18px;box-shadow:0 6px 24px -14px rgba(0,0,0,.25)}
.menu-btn{width:36px;height:36px;display:grid;place-content:center;gap:5px}
.menu-btn span{display:block;width:20px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .35s var(--ease)}
.menu-btn[aria-expanded="true"] span:first-child{transform:translateY(3.3px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:last-child{transform:translateY(-3.3px) rotate(-45deg)}
.wordmark{font:820 19px/1 var(--sans);letter-spacing:-.05em}
.top-right{display:flex;justify-content:flex-end;align-items:center;gap:8px}
.search-btn{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;font-size:14px;font-weight:600;background:var(--paper);transition:border-color .2s ease}
.search-btn:hover{border-color:var(--ink)}
.search-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.menu{pointer-events:auto;max-width:var(--wrap);margin:8px auto 0;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:8px;display:grid;grid-template-columns:repeat(4,1fr);gap:6px;box-shadow:0 18px 40px -24px rgba(0,0,0,.35);opacity:0;transform:translateY(-8px);transition:opacity .25s ease,transform .4s var(--ease)}
.menu.open{opacity:1;transform:none}
.menu a{display:flex;flex-direction:column;gap:6px;padding:22px 20px;border-radius:12px;transition:background-color .2s ease}
.menu a:hover,.menu a[aria-current="page"]{background:var(--soft)}
.menu b{font:780 22px/1 var(--sans);letter-spacing:-.04em}
.menu span{font:500 10.5px/1 var(--mono);letter-spacing:.1em;color:var(--muted)}

/* hero */
.hero{padding-top:190px}
.hero h1{margin:34px 0 0;font:820 clamp(46px,7.4vw,104px)/1.04 var(--sans);letter-spacing:-.072em}
.hero h1 .l{display:block}
.hero h1 .l2{padding-left:clamp(0px,11vw,170px)}
.hero-foot{margin-top:72px;padding:30px 0 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:40px}
.hero-foot p{margin:0;max-width:480px;color:var(--muted);font-size:15px}
.hero-actions{display:flex;gap:8px;flex-shrink:0}

/* workbench (dark) */
.bench{margin:120px auto 0;max-width:calc(var(--wrap) + 40px);padding:0 20px}
.bench-card{background:var(--dark);color:#f4f3ef;border-radius:32px;padding:84px 60px 60px;box-shadow:0 30px 60px -40px rgba(0,0,0,.6)}
.bench-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:56px}
.bench-head .mono{color:var(--dark-text)}
.bench-head h2{margin:16px 0 0;font:760 clamp(38px,5vw,62px)/1.02 var(--sans);letter-spacing:-.06em}
.bench-head p{margin:0;color:var(--dark-text);font-size:14px}
.bench-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.bcard{position:relative;display:flex;flex-direction:column;min-height:340px;padding:26px 28px 24px;background:var(--dark-2);border:1px solid var(--dark-line);border-radius:20px;overflow:hidden;transition:border-color .25s ease,transform .5s var(--ease)}
.bcard:hover{border-color:#55554f;transform:translateY(-3px)}
.bcard .mono{color:var(--dark-text)}
.bcard-meta{color:#d8d6cf;margin-top:6px}
.bcard-cover{position:absolute;inset:0;z-index:0;opacity:.32;transition:opacity .4s ease,transform 1.1s var(--ease)}
.bcard-cover img{width:100%;height:100%;object-fit:cover}
.bcard:hover .bcard-cover{opacity:.45;transform:scale(1.03)}
.bcard>*:not(.bcard-cover){position:relative;z-index:1}
.bcard h3{margin:auto 0 12px;font:780 clamp(30px,3.4vw,44px)/1.08 var(--sans);letter-spacing:-.055em}
.bcard p{margin:0;color:var(--dark-text);font-size:14px;max-width:440px}
.bcard-foot{display:flex;justify-content:space-between;align-items:center;margin-top:26px;padding-top:18px;border-top:1px solid var(--dark-line);font-size:14px;font-weight:700}
.bcard-foot i{font-style:normal;transition:transform .3s var(--ease)}
.bcard:hover .bcard-foot i{transform:translate(3px,-3px)}

/* section head + rows */
.sec{padding-top:140px}
.sec-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.sec-head h2{margin:0;font:780 clamp(32px,4vw,46px)/1.1 var(--sans);letter-spacing:-.055em}
.rows a{display:grid;grid-template-columns:120px 1fr 260px;align-items:center;gap:24px;padding:38px 0;border-bottom:1px solid var(--line);transition:padding .45s var(--ease)}
.rows a:hover{padding-left:12px}
.rows h3{margin:0;font:780 clamp(26px,3vw,36px)/1.15 var(--sans);letter-spacing:-.05em}
.rows .desc{color:var(--muted);font-size:14px;text-align:right}

/* page head */
.page-head{padding-top:170px}
.page-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid var(--line)}
.page-head h1{margin:56px 0 0;font:820 clamp(48px,7vw,92px)/1.04 var(--sans);letter-spacing:-.07em}
.page-head .lead{margin:26px 0 0;color:var(--muted);max-width:460px;font-size:15px}

/* project list */
.plist{margin-top:80px;border-top:1px solid var(--line)}
.pitem{display:grid;grid-template-columns:170px 1fr;gap:30px;padding:46px 0;border-bottom:1px solid var(--line)}
.pitem .mono{padding-top:10px;line-height:1.6}
.pitem h2{margin:0;font:780 clamp(30px,3.6vw,42px)/1.1 var(--sans);letter-spacing:-.055em}
.pitem p{margin:16px 0 0;color:var(--muted);font-size:15px;max-width:520px}
.pitem .chips{margin-top:18px}
.pitem .more{display:inline-flex;gap:6px;margin-top:22px;font-weight:700;font-size:14px;border-bottom:1.5px solid var(--ink);padding-bottom:2px}
.pitem .more i{font-style:normal;transition:transform .3s var(--ease)}
.pitem:hover .more i{transform:translate(2px,-2px)}
.pcover{margin-top:24px;border-radius:16px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:var(--soft)}
.pcover img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.pitem:hover .pcover img{transform:scale(1.03)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;height:30px;padding:0 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;font-weight:600;background:var(--paper);color:var(--text);transition:background-color .2s ease,color .2s ease,border-color .2s ease}
button.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.status{display:inline-flex;align-items:center;gap:6px}
.status::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}

/* log list */
.lib{margin-top:70px}
.lib-head{display:flex;justify-content:space-between;padding-bottom:12px;border-bottom:2px solid var(--ink)}
.lib-tools{padding:22px 0 26px;border-bottom:1px solid var(--line);display:grid;gap:18px}
.field-label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}
.search{display:flex;align-items:center;gap:10px;height:50px;padding:0 18px;border-radius:12px;background:var(--soft);border:1px solid transparent;transition:border-color .2s ease,background-color .2s ease}
.search:focus-within{border-color:var(--ink);background:var(--paper)}
.search svg{width:16px;height:16px;fill:none;stroke:var(--muted);stroke-width:1.8;stroke-linecap:round;flex-shrink:0}
.search input{flex:1;border:0;background:none;font:500 15px var(--sans);color:var(--ink);outline:none;min-width:0}
.lib-count{font-size:13px;color:var(--muted);margin:0}
.litem{display:grid;grid-template-columns:70px 1fr 120px 24px;gap:24px;align-items:start;padding:34px 0;border-bottom:1px solid var(--line);transition:background-color .25s ease}
.litem:hover h2{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px}
.litem .num{font:500 12px/1 var(--mono);color:var(--muted);padding-top:8px}
.litem h2{margin:10px 0 0;font:760 clamp(22px,2.4vw,28px)/1.25 var(--sans);letter-spacing:-.045em}
.litem p{margin:10px 0 0;color:var(--muted);font-size:14px;max-width:560px}
.litem .date{font:500 12px/1 var(--mono);color:var(--muted);padding-top:8px;text-align:right}
.litem .arrow{padding-top:4px;font-size:18px;transition:transform .3s var(--ease)}
.litem:hover .arrow{transform:translateX(4px)}
.empty{padding:60px 0;text-align:center;color:var(--muted)}

/* article */
.article{padding-top:150px}
.art-top{display:flex;justify-content:space-between;align-items:center;gap:16px}
.back{display:inline-flex;gap:6px;font-size:14px;font-weight:700}
.back i{font-style:normal;transition:transform .3s var(--ease)}
.back:hover i{transform:translateX(-3px)}
.article h1{margin:40px 0 0;font:820 clamp(36px,5vw,56px)/1.14 var(--sans);letter-spacing:-.06em}
.article .lead{margin:22px 0 0;font-size:17px;color:var(--muted)}
.quick{margin-top:40px;background:var(--soft);border-radius:16px;padding:22px 26px}
.quick b{display:block;font-size:14px;margin-bottom:10px}
.quick dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:14px}
.quick dt{color:var(--muted)}
.quick dd{margin:0;font-weight:600}
.quick dd a{border-bottom:1px solid currentColor}
.art-cover{margin-top:40px;border-radius:18px;overflow:hidden;border:1px solid var(--line)}
.prose{margin-top:56px;font-size:16.5px;line-height:1.85;color:var(--text)}
.prose h2{margin:72px 0 18px;font:760 24px/1.35 var(--sans);letter-spacing:-.04em;color:var(--ink);display:flex;gap:14px;align-items:baseline}
.prose h2 .n{font:500 14px/1 var(--mono);color:var(--muted)}
.prose h3{margin:44px 0 12px;font:740 19px/1.4 var(--sans);letter-spacing:-.03em;color:var(--ink)}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px}
.prose li{margin:6px 0}
.prose li::marker{color:var(--muted)}
.prose a{border-bottom:1px solid currentColor}
.prose strong{font-weight:760;color:var(--ink)}
.prose code{font:500 .86em var(--mono);background:var(--soft);padding:2px 6px;border-radius:6px}
.prose pre{margin:24px 0;background:var(--dark);color:#e9e7e1;border-radius:14px;padding:20px 22px;overflow-x:auto;font:500 13.5px/1.7 var(--mono)}
.prose pre code{background:none;padding:0;font:inherit}
.prose blockquote{margin:24px 0;padding:4px 0 4px 20px;border-left:2px solid var(--ink);color:var(--muted)}
.prose figure{margin:32px 0}
.prose figure img{border-radius:14px;border:1px solid var(--line)}
.prose figcaption{margin-top:10px;font-size:13px;color:var(--muted)}
.prose .video{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:var(--dark);margin:32px 0}
.prose .video iframe,.prose .video video{position:absolute;inset:0;width:100%;height:100%;border:0}
.prose hr{border:0;border-top:1px solid var(--line);margin:48px 0}
.art-next{margin-top:96px;border-top:1px solid var(--line)}
.art-next a{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:28px 0;border-bottom:1px solid var(--line)}
.art-next b{font:760 20px/1.3 var(--sans);letter-spacing:-.04em}

/* about */
.about-body{margin-top:70px;display:grid;grid-template-columns:170px 1fr;gap:30px;padding-top:40px;border-top:1px solid var(--line)}
.about-body .prose{margin-top:0;font-size:18px}
.about-body + .about-body{margin-top:0}

/* footer */
.foot{padding:150px 20px 20px}
.foot-card{max-width:calc(var(--wrap) + 40px);margin:0 auto;background:var(--dark);color:#f4f3ef;border-radius:32px;padding:64px 60px 36px}
.foot-word{display:inline-block;font:820 clamp(44px,6vw,76px)/1 var(--sans);letter-spacing:-.07em}
.foot-row{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-top:22px}
.foot-row p{margin:0;color:var(--dark-text);font-size:14px}
.foot-links{display:flex;flex-wrap:wrap;gap:6px 24px;font:500 11px/1 var(--mono);letter-spacing:.1em}
.foot-links a{color:var(--dark-text);transition:color .2s ease}
.foot-links a:hover{color:#fff}
.foot-copy{margin:56px 0 0;padding-top:22px;border-top:1px solid var(--dark-line);color:#77756f;font:500 11px/1 var(--mono);letter-spacing:.06em}

/* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:calc(var(--i,0)*70ms)}
.rv.in{opacity:1;transform:none}
.hero h1 .l{opacity:0;transform:translateY(.35em);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease)}
.hero h1 .l2{transition-delay:.12s}
.ready .hero h1 .l{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .rv,.hero h1 .l{opacity:1;transform:none}
}

@media (max-width:1100px){
  :root{--gut:32px}
  .bench-card,.foot-card{padding-left:40px;padding-right:40px}
  .rows a{grid-template-columns:80px 1fr}
  .rows .desc{display:none}
}
@media (max-width:720px){
  :root{--gut:20px}
  body{font-size:15.5px}
  .top{inset:10px 0 auto;padding:0 12px}
  .top-bar{height:54px;padding:0 8px 0 10px;border-radius:16px}
  .search-btn span{display:none}
  .search-btn{width:38px;padding:0;justify-content:center}
  .top-right .btn-sm{padding:0 13px}
  .wordmark{font-size:17px}
  .menu{grid-template-columns:1fr 1fr}
  .menu a{padding:18px 16px}
  .hero{padding-top:140px}
  .hero h1 .l2{padding-left:0}
  .hero-foot{flex-direction:column;gap:24px;margin-top:48px}
  .bench{margin-top:84px;padding:0 10px}
  .bench-card{padding:52px 20px 20px;border-radius:24px}
  .bench-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:34px}
  .bench-grid{grid-template-columns:1fr}
  .bcard{min-height:280px;padding:22px 20px 20px}
  .sec{padding-top:96px}
  .rows a{grid-template-columns:44px 1fr;padding:28px 0}
  .page-head{padding-top:130px}
  .page-head h1{margin-top:40px}
  .pitem{grid-template-columns:1fr;gap:12px;padding:36px 0}
  .pitem .mono{padding-top:0}
  .litem{grid-template-columns:1fr 20px;gap:8px 12px;padding:26px 0}
  .litem .num{display:none}
  .litem .date{grid-column:1;grid-row:1;text-align:left;padding-top:0}
  .litem>div{grid-column:1}
  .litem .arrow{grid-column:2;grid-row:1/3;align-self:center}
  .article{padding-top:120px}
  .prose{font-size:16px}
  .about-body{grid-template-columns:1fr;gap:14px}
  .about-body .prose{font-size:16.5px}
  .foot{padding:110px 10px 10px}
  .foot-card{padding:44px 22px 26px;border-radius:24px}
  .foot-row{flex-direction:column;align-items:flex-start}
}