:root{
  --sky-top:#12131f; --sky-bot:#20222f;
  --ink:oklch(0.9 0.02 275); --muted:oklch(0.7 0.02 275); --faint:oklch(0.55 0.02 275);
  --line:oklch(0.34 0.02 275); --accent:oklch(0.82 0.05 90);
  --cel:oklch(0.93 0.03 95); --cel-glow:oklch(0.88 0.05 95 / 0.35); --stars:0.85;
  --serif: Georgia, "Songti SC", "Noto Serif CJK SC", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Menlo", ui-monospace, monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--sans);color:#1a1a1a;background:#fff;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}

.sky{position:fixed;inset:0;z-index:-3;background:linear-gradient(180deg,var(--sky-top),var(--sky-bot));transition:background 1.2s ease}
.stars{position:fixed;top:-12vh;left:0;right:0;height:140vh;z-index:-3;opacity:var(--stars);transition:opacity 1.2s ease;pointer-events:none;will-change:transform}
.star{position:absolute;border-radius:50%;background:#fff;animation:tw ease-in-out infinite}
@keyframes tw{0%,100%{opacity:.35}50%{opacity:1}}
.skyfield{position:fixed;top:0;left:0;right:0;height:520px;overflow:hidden;pointer-events:none;z-index:-2;will-change:transform}
.cel{position:absolute;width:82px;height:82px;border-radius:50%;transition:left 1.2s ease,top 1.2s ease,background 1.2s ease}
.cel.sun{background:var(--cel);box-shadow:0 0 74px 24px var(--cel-glow)}
.cel.moon{background:var(--cel);filter:drop-shadow(0 0 16px var(--cel-glow))}

.wrap{position:relative;max-width:920px;margin:0 auto;padding:84px 52px 128px;color:var(--ink);transition:color 1.2s ease}

.hero{margin-bottom:78px;max-width:34em}
.idrow{display:flex;align-items:center;gap:28px;margin-bottom:30px}
.avatar-btn{position:relative;display:block;flex:none;width:120px;height:120px;margin:0;padding:0;border:0;background:none;border-radius:50%;cursor:pointer;outline:none;-webkit-tap-highlight-color:transparent}
.avatar-btn::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:1.5px solid var(--ink);opacity:0;transform:scale(.88);transition:opacity .28s ease,transform .28s ease}
.avatar-btn:hover::after,.avatar-btn:focus-visible::after{opacity:.42;transform:scale(1)}
.avatar{width:120px;height:120px;border-radius:50%;object-fit:cover;display:block;box-shadow:0 3px 26px rgba(0,0,0,.22);transition:opacity .35s ease}
.av-articles{display:none}
.wrap.mode-articles .av-products{display:none}
.wrap.mode-articles .av-articles{display:block}

.name{font-family:var(--serif);font-size:48px;line-height:1.02;font-weight:600;margin:0;color:var(--ink);letter-spacing:.01em}
.name-articles{display:none}
.wrap.mode-articles .name-products{display:none}
.wrap.mode-articles .name-articles{display:inline}

@keyframes fadein{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.about{font-family:var(--serif);font-size:22px;line-height:1.72;color:var(--muted);margin:0;max-width:28em}
.about.articles{display:none}
.wrap.mode-articles .about.products{display:none}
.wrap.mode-articles .about.articles{display:block}
.wrap.mode-products .about.products,.wrap.mode-articles .about.articles{animation:fadein .4s ease}
.social{display:flex;flex-wrap:wrap;gap:24px;margin-top:28px;font-size:13.5px;letter-spacing:.03em}
.social a{color:var(--accent);text-decoration:none}
.social a:hover{opacity:.66}

.wrap.mode-products .block-articles{display:none}
.wrap.mode-articles .block-products,.wrap.mode-articles .block-worknotes{display:none}
.block{margin-top:66px}

.stitle{font-family:var(--serif);font-size:27px;font-weight:600;color:var(--ink);margin:0 0 30px;letter-spacing:.02em}

.entry{position:relative;display:flex;justify-content:space-between;align-items:baseline;gap:32px;padding:10px 0;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none}
.entry:last-of-type{border-bottom:none}
.entry::before{content:"";position:absolute;left:0;top:50%;width:14px;height:1.5px;background:var(--accent);opacity:0;transform:translateY(-50%) scaleX(0);transform-origin:left center;transition:opacity .24s ease,transform .24s cubic-bezier(.2,.7,.3,1)}
.entry:hover::before{opacity:1;transform:translateY(-50%) scaleX(1)}
.entry .title{flex:1;font-family:var(--serif);font-size:17.5px;line-height:1.5;color:var(--ink);transition:transform .24s cubic-bezier(.2,.7,.3,1),color .2s ease}
.entry:hover .title{transform:translateX(24px);color:var(--accent)}
.entry .date{color:var(--faint);font-size:12px;white-space:nowrap;font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;transition:color .2s ease}
.entry:hover .date{color:var(--muted)}
.more{background:none;border:0;color:var(--accent);cursor:pointer;padding:22px 0 0;font-size:13px;letter-spacing:.04em}
.more:hover{opacity:.66}

.products{position:relative;padding-left:2px}
.products::before{content:"";position:absolute;left:5px;top:9px;bottom:12px;width:1.5px;background:linear-gradient(var(--line),transparent);background:var(--line)}
.product{position:relative;padding:0 0 32px 34px}
.product:last-child{padding-bottom:0}
.product::before{content:"";position:absolute;left:0;top:7px;width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--cel-glow);transition:box-shadow .25s ease,transform .25s ease}
.product:hover::before{transform:scale(1.15);box-shadow:0 0 0 6px var(--cel-glow)}
.phead{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.product .title{font-weight:600;font-family:var(--serif);font-size:21px;color:var(--ink);line-height:1.3}
.product .status{border:1px solid var(--line);border-radius:999px;padding:2px 10px;font-size:11.5px;color:var(--muted);letter-spacing:.03em;line-height:1.5}
.product .plink{margin-left:auto;color:var(--accent);text-decoration:none;font-size:12.5px;letter-spacing:.03em;white-space:nowrap}
.product .plink:hover{opacity:.66}
.product .desc{color:var(--muted);font-size:15px;line-height:1.74;margin:9px 0 0;max-width:50em}

footer{margin-top:84px;padding-top:26px;border-top:1px solid var(--line);color:var(--faint);font-size:12.5px;letter-spacing:.03em;display:flex;justify-content:space-between;align-items:baseline;gap:20px;flex-wrap:wrap}
footer .social{margin-top:0;font-size:12.5px}

@media (max-width:640px){
  .wrap{padding:60px 24px 96px}
  .hero{margin-bottom:56px}
  .idrow{gap:20px;margin-bottom:24px}
  .name{font-size:36px}
  .about{font-size:19px}
  .avatar-btn,.avatar{width:96px;height:96px}
  .block{margin-top:52px}
  .entry:hover .title{transform:translateX(18px)}
  .skyfield{height:440px}
}