@font-face{font-family:"Pretendard";src:url(../fonts/Pretendard-Regular.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Pretendard";src:url(../fonts/Pretendard-Bold.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Geist Mono";src:url(../fonts/GeistMono-Regular.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Geist Mono";src:url(../fonts/GeistMono-Medium.woff2) format("woff2");font-weight:500;font-display:swap}

:root{
  --bg:#fff;--fg:#111;--mute:#8d8d8d;--fg0:#111;--mute0:#8d8d8d;--line:#e3e3e3;--hl:#d9e8fb;--thumb:#f4f4f4;--hover:#f6f9fd;
  --sans:"Pretendard",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --mono:"Geist Mono","Pretendard",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--fg);font-size:13px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,video{display:block;max-width:100%;height:auto}
::selection{background:var(--hl)}

/* dark mode: white text, near-black picture mats (light mode is unchanged) */
html[data-theme="dark"]{--bg:#111;--fg:#fff;--mute:#9a9a9a;--fg0:#fff;--mute0:#9a9a9a;--line:#2a2a2a;--hl:#24477a;--thumb:#050505;--hover:#1a1d22;color-scheme:dark}
body,.lab,.col,.work img,.idx a,.toc a{transition:background-color .25s ease,color .25s ease,border-color .25s ease}
@media (prefers-reduced-motion:reduce){body,.lab,.col,.work img,.idx a,.toc a{transition:none}}

.tools{display:flex;align-items:center;gap:12px}
.theme{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;padding:0;color:var(--mute);border-radius:50%}
@media (hover:hover){.theme:hover{color:var(--fg);background:var(--hl)}}
.theme:active{color:var(--fg)}
.theme svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.theme .i-sun{display:none}
.eye{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;padding:0;color:var(--mute);border-radius:50%}
@media (hover:hover){.eye:hover{color:var(--fg);background:var(--hl)}}
.eye:active{color:var(--fg)}
.eye svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.eye .i-eye-off{display:none}
html.sig-on .eye .i-eye{display:none}
html.sig-on .eye .i-eye-off{display:block}
html.sig-on .eye{color:var(--fg)}
html[data-theme="dark"] .theme .i-moon{display:none}
html[data-theme="dark"] .theme .i-sun{display:block}
:focus-visible{outline:2px solid #4b8bdc;outline-offset:2px}

/* language switching: English is the default */
html[lang="en"] [data-l="ko"],html[lang="ko"] [data-l="en"]{display:none!important}

.skip{position:absolute;left:-999px;top:0;background:var(--bg);padding:8px 12px;z-index:10}
.skip:focus{left:8px;top:8px}

.m{font-family:var(--mono);font-size:11px;letter-spacing:.01em;text-transform:uppercase;font-weight:400}
.mute{color:var(--mute)}
.u{text-decoration:underline;text-underline-offset:3px}
a.u:hover,.menu a:hover,.link:hover{background:var(--hl)}
.pill{display:inline-block;background:var(--hl);border-radius:20px;padding:1px 8px;font-family:var(--mono);font-size:10px;text-transform:uppercase;margin-left:6px;vertical-align:1px}

/* frame */
.cols{display:grid;grid-template-columns:25% 46% 29%}
.col{border-left:1px solid var(--line);padding:0 14px 40px;min-width:0}
.col.left{border-left:0}
.lab{flex:none;height:50px;padding-top:14px;border-bottom:1px solid var(--line);margin:0 -14px;padding-left:14px;padding-right:14px;display:flex;justify-content:space-between;align-items:flex-start;gap:12px;background:var(--bg);position:sticky;top:0;z-index:3}
.brand{display:flex;align-items:center;gap:8px;height:22px}
.lab .name{text-decoration:none}
.lab .name:hover{background:var(--hl)}
.lang{display:flex;gap:6px;align-items:center;white-space:nowrap}
.lang button{padding:0 2px;color:var(--mute);text-transform:uppercase}
html[lang="en"] .lang [data-set-lang="en"],html[lang="ko"] .lang [data-set-lang="ko"]{color:var(--fg);text-decoration:underline;text-underline-offset:3px}
.lang .sep{color:var(--mute)}

.col.left{display:flex;flex-direction:column}
.menu{padding-top:14px;display:flex;flex-direction:column}
.menu a{text-decoration:none;width:max-content}
.menu a[aria-current="page"]{text-decoration:underline;text-underline-offset:3px}
.menu .gap{height:12px}
.intro{margin-top:26px}
.intro p{margin-bottom:12px}
.clock{margin-top:auto;padding-top:28px;color:var(--mute)}
.block-title{margin-top:26px}

/* works cards (home) */
.work{padding:14px 0 18px;border-bottom:1px solid var(--line)}
.work a.cover{display:block;text-decoration:none}
.work img{width:100%;height:auto;aspect-ratio:3/2;object-fit:contain;background:var(--thumb);padding:5%}
.work .row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:10px}
.work .t{font-family:var(--mono);font-size:11px;text-transform:uppercase}
.work .t a{text-decoration:none}
.work .t a:hover{background:var(--hl)}
.work .d{font-size:12px;line-height:1.45}
.work .d i{display:block}

/* work page */
.winfo h1{font-size:22px;line-height:1.2;font-weight:700;letter-spacing:-.02em;margin:8px 0}
.winfo p{margin:0 0 14px}
.fig{padding:0 0 12px}
.fig:first-of-type{padding-top:14px}
.fig video{width:100%;background:#000}
.pager{display:flex;gap:16px;margin-top:22px}

/* index (right column) */
.idx a{display:grid;grid-template-columns:34px 1fr 40px;padding:6px 0;border-bottom:1px solid var(--line);text-decoration:none;font-size:12.5px}
.idx a:hover{background:var(--hover)}
.idx a[aria-current="page"]{background:var(--hl);margin:0 -14px;padding-left:14px;padding-right:14px}
.idx a span:first-child,.idx a span:last-child{font-family:var(--mono);font-size:11px;color:var(--mute)}
.idx a span:last-child{text-align:right}

/* cv */
.cv-sec{padding:14px 0 6px;border-bottom:1px solid var(--line)}
.cv-sec>h2{margin-bottom:10px}
.cv-row{display:grid;grid-template-columns:92px 1fr;gap:10px;font-size:12px;line-height:1.4;margin-bottom:8px}
.cv-row.range{align-items:center}
.cv-row .y{font-family:var(--mono);font-size:11px;color:var(--mute);text-transform:uppercase}
.cv-more{padding:14px 0}

/* prose pages */
.prose{max-width:640px;padding-top:18px}
.prose p{margin-bottom:14px;font-size:14px;line-height:1.65}
.prose h2{font-weight:400}
.prose .lead{font-size:20px;line-height:1.35;letter-spacing:-.01em}
.essay{padding:18px 0 26px;border-bottom:1px solid var(--line)}
.essay h2{font-size:17px;font-weight:700;line-height:1.35;letter-spacing:-.01em;margin:6px 0 4px}
.essay .by{margin-bottom:16px}
.essay .notes{margin-top:18px;color:var(--mute);font-size:12px}
.essay .notes p{font-size:12px;margin-bottom:4px;line-height:1.5}
.toc a{display:block;padding:6px 0;border-bottom:1px solid var(--line);text-decoration:none;font-size:12.5px}
.toc a:hover{background:var(--hover)}


/* desktop: each column scrolls on its own */
@media (min-width:960px){
  html,body{height:100%;overflow:hidden}
  .cols{height:100vh}
  .col{height:100vh;overflow-y:auto;overscroll-behavior:contain}
}

/* mobile: one column, name + language stay on top */
@media (max-width:959px){
  .cols{display:block}
  .col{border-left:0;border-bottom:1px solid var(--line);padding-bottom:24px}
  .col.left{display:contents}
  .lab{height:auto;min-height:52px;padding-bottom:12px;margin:0;padding-left:14px;padding-right:14px;border-bottom:1px solid var(--line)}
  .col.mid>.lab,.col.right>.lab{position:static;height:48px;margin:0 -14px}
  .menu,.intro,.winfo,.clock{padding-left:14px;padding-right:14px}
  .menu{flex-direction:row;flex-wrap:wrap;gap:6px 16px;padding-top:12px;padding-bottom:14px;border-bottom:4px double var(--line)}
  .col.left>.lab{border-top:1px solid var(--line)}
  .menu .gap{display:none}
  .clock{display:none}                                   /* no clock on mobile */
  .col.left>:nth-last-child(2):not(.menu){padding-bottom:20px;border-bottom:1px solid var(--line)}
  .work .row{grid-template-columns:1fr}
  .cv-row{grid-template-columns:78px 1fr}
  .col.right.idx-only{display:none}
}
.to-top{display:none}
@media (max-width:959px){
  .to-top{display:flex;align-items:center;justify-content:center;position:fixed;right:16px;bottom:16px;width:44px;height:44px;border-radius:50%;background:var(--bg);border:1px solid var(--line);color:#b0b0b0;z-index:20;opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}
  .to-top.show{opacity:1;visibility:visible}
  .to-top:active{background:var(--hl)}
  html[data-theme="dark"] .to-top{color:#7c7c7c}
}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}

/* text pages made in the admin */
.prose h3{font-size:15px;font-weight:700;line-height:1.4;letter-spacing:-.01em;margin:24px 0 8px}
.lockform{display:flex;gap:8px;max-width:360px;margin:6px 0 12px}
.lockform input{flex:1;min-width:0;font:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--fg);border-radius:0;background:var(--bg);color:var(--fg)}
.lockform button{border:1px solid var(--fg);border-radius:30px;padding:0 16px;white-space:nowrap}
@media (hover:hover){.lockform button:hover{background:var(--hl)}}
.lockbox [hidden]{display:none!important}
.lockerr{color:#c0392b;min-height:1.4em}
.lockhint{margin-bottom:8px}

/* mobile: a bento (3x3 dots) button next to the name opens the menu from anywhere on a long page */
.bento,.bento-panel{display:none}
@media (max-width:959px){
  .bento{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;padding:0;color:var(--mute);border-radius:50%}
  .bento svg{width:13px;height:13px;fill:currentColor}
  .bento[aria-expanded="true"]{color:var(--fg);background:var(--hl)}
  .bento-panel{display:flex;flex-direction:column;position:absolute;left:0;right:0;top:calc(100% + 7px);z-index:4;background:var(--bg);border-bottom:1px solid var(--line);padding:4px 14px 14px;box-shadow:0 10px 18px -12px rgba(0,0,0,.35)}
  .bento-panel[hidden]{display:none}
  .bento-panel a{display:block;padding:10px 0;border-bottom:1px solid var(--line);text-decoration:none}
  .bento-panel a[aria-current="page"]{text-decoration:underline;text-underline-offset:3px}
  .bento-panel .gap{height:10px}
  .bento-panel a:last-child{border-bottom:0}
}