:root{
  --gray:#c0c0c0;          /* window surface */
  --gray-l:#dfdfdf;        /* light bevel */
  --gray-d:#808080;        /* dark bevel */
  --gray-2:#b8b8b8;
  --black:#0a0a0a;
  --white:#ffffff;
  --ink:#0a0a0a;
  --ink-2:#2a2a2a;
  --ink-3:#555555;
  --desk:#8a8a8a;          /* desktop */
  --pixel:"Galmuri11","Pretendard",monospace;
  --pixel-b:"Galmuri11",monospace;
  --pixel-lg:"Galmuri14","Galmuri11",monospace;
  --sans:"Pretendard",system-ui,sans-serif;

  /* Win9x bevels */
  --out: inset -1px -1px 0 #0a0a0a, inset 1px 1px 0 #ffffff, inset -2px -2px 0 #808080, inset 2px 2px 0 #dfdfdf;
  --in:  inset -1px -1px 0 #ffffff, inset 1px 1px 0 #808080, inset -2px -2px 0 #dfdfdf, inset 2px 2px 0 #0a0a0a;
  --press: inset 1px 1px 0 #0a0a0a, inset -1px -1px 0 #ffffff, inset 2px 2px 0 #808080, inset -2px -2px 0 #dfdfdf;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden}
body{
  font-family:var(--sans);
  background:var(--desk);
  color:var(--ink);
  font-size:14.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
  cursor:default;user-select:none;
}

#desktop::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:radial-gradient(rgba(0,0,0,.13) 1px, transparent 1.4px);
  background-size:20px 20px;
}
#bg{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0}

/* ---------- Boot ---------- */
#boot{position:fixed;inset:0;z-index:9999;background:#0a0a0a;display:flex;align-items:center;justify-content:center;transition:opacity .5s ease}
#boot.gone{opacity:0;pointer-events:none}
.boot-inner{text-align:center;color:#fff}
.boot-brand{font-family:var(--pixel);font-size:38px;letter-spacing:2px}
.boot-brand .cursor{animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.boot-bar{width:260px;height:16px;margin:26px auto 12px;background:#2a2a2a;box-shadow:var(--in)}
.boot-fill{height:100%;width:0;background:repeating-linear-gradient(90deg,#fff 0 9px,#0a0a0a 9px 11px);animation:boot 2s steps(20) forwards}
@keyframes boot{to{width:100%}}
.boot-text{font-family:var(--pixel);font-size:11px;letter-spacing:3px;color:#9a9a9a}

/* ---------- Desktop ---------- */
#desktop{position:relative;z-index:2;height:100%;width:100%}

#icons{position:absolute;top:24px;left:22px;display:flex;flex-direction:column;gap:20px;z-index:3}
.icon{
  background:none;border:none;font-family:var(--pixel);font-size:11px;letter-spacing:.5px;color:#fff;
  text-shadow:1px 1px 0 #000;display:flex;flex-direction:column;align-items:center;gap:8px;width:84px;cursor:pointer;padding:6px 4px;
}
.icon .ico{width:42px;height:42px;object-fit:contain;image-rendering:pixelated}
.icon:hover .ico{filter:brightness(1.1) drop-shadow(0 0 2px rgba(255,255,255,.5))}
.icon:hover span{background:#000080;color:#fff;text-shadow:none;padding:0 2px}

/* ---------- Windows ---------- */
.window{
  position:absolute;background:var(--gray);padding:3px;
  box-shadow:var(--out), 3px 3px 6px rgba(0,0,0,.35);
  display:flex;flex-direction:column;overflow:hidden;max-width:92vw;
}
.window.minimized{display:none!important}

.titlebar{
  display:flex;align-items:center;gap:8px;
  background:#0a0a0a;
  color:#fff;padding:5px 4px 5px 10px;cursor:grab;flex:0 0 auto;
}
.titlebar:active{cursor:grabbing}
.title{flex:1;font-family:var(--pixel);font-size:12px;letter-spacing:1px;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ctrls{display:flex;gap:3px}
.ctrls button{
  width:20px;height:18px;background:var(--gray);color:#000;font-size:10px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--out);border:none
}
.ctrls button:active{box-shadow:var(--press)}

.window-body{padding:22px 24px;overflow:auto;max-height:70vh;background:var(--gray)}
.window-body::-webkit-scrollbar{width:16px}
.window-body::-webkit-scrollbar-track{background:var(--gray);box-shadow:var(--in)}
.window-body::-webkit-scrollbar-thumb{background:var(--gray);box-shadow:var(--out)}

.overline{font-family:var(--pixel);font-size:10px;letter-spacing:1.5px;color:var(--ink-3);margin-bottom:9px}

/* ---------- About ---------- */
.about-body{display:flex;gap:24px}
.about-text{flex:1}
.name{font-family:var(--pixel-lg);font-size:42px;font-weight:700;letter-spacing:0;line-height:1.1;color:var(--ink)}
.name-en{font-family:var(--pixel);font-size:13px;letter-spacing:3px;color:var(--ink-3);margin-top:6px}
.role{font-family:var(--pixel-b);font-size:16px;font-weight:700;letter-spacing:0;margin-top:16px}
.muted{color:var(--ink-3);font-size:13px;margin-bottom:18px}
.kv{list-style:none;background:var(--gray);box-shadow:var(--in);padding:10px 14px}
.kv li{display:flex;gap:12px;padding:6px 0;font-size:13px}
.kv li+li{border-top:1px dotted #9a9a9a}
.kv .k{font-family:var(--pixel);font-size:10px;letter-spacing:1px;color:var(--ink-3);min-width:58px;padding-top:2px}
.kv .v{color:var(--ink)}
.kv a.v{color:#000080;text-decoration:underline;text-underline-offset:2px}
.about-side{width:148px;text-align:center}
.avatar{width:120px;height:120px;display:flex;align-items:center;justify-content:center;background:var(--gray);box-shadow:var(--in);margin:0 auto}
.avatar img{width:74px;height:74px;object-fit:contain;image-rendering:pixelated}
.hint{font-size:12px;color:var(--ink-3);margin-top:14px;line-height:1.5}

/* ---------- Skills ---------- */
.skill-group{margin-bottom:20px}
.skill-group:last-child{margin-bottom:0}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chips span{font-family:var(--pixel);background:var(--gray);box-shadow:var(--out);padding:5px 11px;font-size:11px;color:var(--ink)}
.chips span:active{box-shadow:var(--press)}
.tool-icons{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.tool-icons img{width:30px;height:30px;object-fit:contain;background:var(--gray);box-shadow:var(--out);padding:4px}

/* ---------- Projects ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.proj-cat{grid-column:1/-1;font-family:var(--pixel);font-size:10px;letter-spacing:1.5px;color:var(--ink-3);margin-top:12px;padding-bottom:7px;border-bottom:1px solid #9a9a9a}
.proj-cat:first-child{margin-top:0}
.proj-card{background:var(--gray);box-shadow:var(--out);padding:14px;cursor:pointer}
.proj-card:hover{background:#cfcfcf}
.proj-card:active{box-shadow:var(--press)}
.proj-card .ico{width:34px;height:34px;object-fit:contain;image-rendering:pixelated;margin-bottom:11px;display:block}
.proj-card h4{font-family:var(--pixel-b);font-size:13px;font-weight:700;margin-bottom:5px;letter-spacing:0}
.proj-card p{font-size:12px;color:var(--ink-3);line-height:1.4}
.proj-card .tag{display:inline-block;margin-top:10px;font-family:var(--pixel);font-size:9px;letter-spacing:.5px;color:var(--ink-2);background:var(--gray);box-shadow:var(--in);padding:3px 7px}

/* ---------- Project detail ---------- */
#pdBody .pd-head{display:flex;align-items:center;gap:13px;margin-bottom:6px}
#pdBody .pd-ico{width:40px;height:40px;object-fit:contain;image-rendering:pixelated}
#pdBody h3{font-family:var(--pixel-b);font-size:17px;font-weight:700;letter-spacing:0}
#pdBody .pd-sub{color:var(--ink-3);font-size:13.5px;margin-bottom:12px}
#pdBody .stack{display:flex;flex-wrap:wrap;gap:6px;margin:13px 0}
#pdBody .stack span{background:var(--gray);box-shadow:var(--out);padding:3px 9px;font-size:11.5px}
#pdBody p.desc{font-size:14px;line-height:1.7;color:var(--ink-2);margin-bottom:16px}

/* ---------- Buttons / links ---------- */
.link-btn{
  display:inline-flex;align-items:center;gap:9px;background:var(--gray);color:var(--ink);text-decoration:none;
  padding:10px 16px;font-family:var(--pixel);font-size:12px;font-weight:400;box-shadow:var(--out)
}
.link-btn:active{box-shadow:var(--press)}
.link-btn i{width:16px;text-align:center}

/* ---------- Contact ---------- */
.contact-body{display:flex;flex-direction:column;gap:11px}
.contact-lead{font-family:var(--pixel-b);font-size:15px;font-weight:700;margin-bottom:5px}

/* ---------- Resume (paper, sunken) ---------- */
.resume-body{background:#fff;box-shadow:var(--in);color:var(--ink);margin:0;padding:24px 26px}
.clean-link{display:block;text-align:center;background:#0a0a0a;color:#fff;font-family:var(--pixel);font-size:11px;
  text-decoration:none;padding:8px;margin-bottom:18px;box-shadow:var(--out)}
.clean-link:hover{background:#000080}
@media print{.clean-link{display:none!important}}
.resume-head{border-bottom:2px solid var(--ink);padding-bottom:14px;margin-bottom:16px}
.resume-head h1{font-family:var(--pixel-lg);font-size:28px;font-weight:700;letter-spacing:0}
.resume-head h1 span{font-family:var(--pixel);font-size:12px;letter-spacing:2px;color:var(--ink-3);margin-left:8px}
.resume-role{font-size:13.5px;margin-top:5px}
.resume-contact{font-size:11.5px;color:var(--ink-3);margin-top:7px}
.resume-sec{margin-top:18px}
.resume-sec h2{font-family:var(--pixel);font-size:11px;letter-spacing:1.5px;color:var(--ink);border-bottom:1px solid #c9c9c9;padding-bottom:5px;margin-bottom:10px}
.resume-sec p{font-size:13px;line-height:1.7;color:var(--ink-2)}
.resume-sec ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.resume-sec li{font-size:13px;line-height:1.55}
.resume-sec li b{font-weight:700}
.resume-sec li span{color:var(--ink-3);font-size:12px}

/* ---------- Taskbar ---------- */
#taskbar{
  position:absolute;bottom:0;left:0;right:0;height:42px;z-index:500;
  background:var(--gray);box-shadow:inset 0 1px 0 #fff, inset 0 2px 0 var(--gray-l);
  display:flex;align-items:center;gap:6px;padding:4px 6px
}
#startBtn{
  display:flex;align-items:center;gap:7px;background:var(--gray);color:var(--ink);
  font-family:var(--pixel);font-size:12px;letter-spacing:.5px;font-weight:700;
  padding:6px 12px;cursor:pointer;box-shadow:var(--out);height:32px
}
#startBtn:active{box-shadow:var(--press)}
.start-ico{width:18px;height:18px;object-fit:contain;image-rendering:pixelated}
#taskItems{flex:1;display:flex;gap:5px;overflow:hidden;padding:0 4px}
.task-item{
  background:var(--gray);color:var(--ink);font-family:var(--pixel);font-size:10px;letter-spacing:.5px;
  padding:0 12px;cursor:pointer;white-space:nowrap;max-width:180px;overflow:hidden;text-overflow:ellipsis;
  height:32px;display:flex;align-items:center;box-shadow:var(--out);min-width:130px
}
.task-item.active{box-shadow:var(--press);background:#cacaca}
#clock{font-family:var(--pixel);font-size:12px;letter-spacing:.5px;color:var(--ink);padding:0 12px;height:32px;display:flex;align-items:center;box-shadow:var(--in)}

/* ---------- CRT monitor overlay ---------- */
.crt{position:fixed;inset:0;z-index:99999;pointer-events:none;overflow:hidden}
.crt-scan{position:absolute;inset:0;
  background:repeating-linear-gradient(0deg, rgba(0,0,0,.17) 0 1px, transparent 1px 3px);
  mix-blend-mode:multiply;opacity:.55;animation:crtflicker .14s steps(2) infinite}
.crt-roll{position:absolute;left:0;right:0;height:140px;top:-140px;
  background:linear-gradient(180deg, transparent, rgba(255,255,255,.06) 45%, rgba(255,255,255,.03) 60%, transparent);
  animation:crtroll 6.5s linear infinite}
.crt-vignette{position:absolute;inset:0;
  background:radial-gradient(130% 130% at 50% 50%, transparent 52%, rgba(0,0,0,.30) 84%, rgba(0,0,0,.62) 100%);
  box-shadow:inset 0 0 150px rgba(0,0,0,.45), inset 0 0 46px rgba(0,0,0,.40)}
@keyframes crtflicker{0%{opacity:.50}100%{opacity:.62}}
@keyframes crtroll{0%{top:-140px}100%{top:100%}}
@media(prefers-reduced-motion:reduce){.crt-scan,.crt-roll{animation:none}}

/* ---------- Mobile ---------- */
@media(max-width:760px){
  #icons{flex-direction:row;flex-wrap:wrap;top:12px;left:12px;right:12px;gap:12px}
  .icon{width:72px}
  .window{left:3vw!important;width:94vw!important}
  .about-body{flex-direction:column-reverse}
  .about-side{width:100%}
  .proj-grid{grid-template-columns:1fr}
}

/* ---------- Print ---------- */
@media print{
  body{overflow:visible;background:#fff}
  .crt,#boot,#icons,#taskbar,.titlebar,#desktop::before,#desktop>.window:not(#resume){display:none!important}
  #resume{position:static!important;width:100%!important;padding:0!important;box-shadow:none!important}
  .resume-body{max-height:none!important;box-shadow:none!important;padding:0!important}
}