:root{
  --bg:#E7E5DF; --card:#fff; --ink:#16171B; --sub:#54565C; --muted:#9A9CA2;
  --line:#D7D5CD; --line2:#D2D0C8; --accent:#4292C6; --accent-dark:#2A6E99;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,monospace;
  --head:'Space Grotesk',system-ui,sans-serif;
  --body:'IBM Plex Sans',system-ui,sans-serif;
  --maxw:1040px;
}
*{box-sizing:border-box;}
html{width:100%;min-height:100%;-webkit-text-size-adjust:100%;}
body{width:100%;min-width:0;min-height:100vh;min-height:100svh;margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;display:flex;flex-direction:column;}
::selection{background:var(--accent);color:#fff;}
img{max-width:100%;}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
main.wrap{flex:1 0 auto;}

/* ---------- header ---------- */
.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:1000;padding:24px 0 8px;background:var(--bg);}
.header-inner{background:var(--card);border:1.5px solid var(--ink);border-radius:16px;box-shadow:0 2px 0 var(--ink);padding:12px 16px;display:flex;align-items:center;justify-content:space-between;position:relative;}
.logo{display:flex;align-items:center;text-decoration:none;}
.logo img{height:46px;width:auto;display:block;}
.nav{display:flex;align-items:center;gap:28px;}
.nav a{text-decoration:none;color:var(--ink);font-size:15px;}
.nav a:hover,.nav a.active{color:var(--accent);}
.nav-toggle{display:none;}
.hamburger{display:none;}

/* ---------- intro ---------- */
.intro{padding:36px 4px 8px;max-width:660px;}
.intro h1{font-family:var(--head);font-weight:600;font-size:42px;line-height:1.08;letter-spacing:-0.01em;margin:0 0 16px;text-wrap:balance;}
.intro p{font-size:17px;color:var(--sub);margin:0 0 22px;line-height:1.6;}
.social{display:flex;gap:12px;}
.btn{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--ink);border-radius:999px;padding:9px 16px;font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);background:var(--card);text-decoration:none;transition:background .12s,color .12s;}
.btn:hover{background:var(--ink);color:#fff;}

/* ---------- section label ---------- */
.list-head{display:flex;align-items:baseline;justify-content:space-between;border-top:1.5px solid var(--ink);padding-top:18px;margin-top:34px;}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;}
.list-head .more{color:var(--accent);text-decoration:none;font-family:var(--mono);font-size:12px;letter-spacing:.08em;}

/* ---------- post list ---------- */
.post-list{display:flex;flex-direction:column;}
.post-row{display:grid;grid-template-columns:110px minmax(0,1fr) auto;gap:26px;align-items:baseline;padding:17px 12px;border-bottom:1px solid var(--line);color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent;}
.post-row > *,.arch-row > *{min-width:0;}
.post-row .date{font-family:var(--mono);font-size:13px;color:var(--muted);}
.post-row .title{font-family:var(--head);font-weight:600;font-size:18.5px;color:inherit;text-decoration:none;transition:background .12s,color .12s,box-shadow .12s;overflow-wrap:anywhere;-webkit-box-decoration-break:clone;box-decoration-break:clone;}
.title-link{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent;}
.title-link:visited{color:inherit;}
.title-link:hover,.title-link:focus,.title-link:active{background:var(--accent);color:#fff;text-decoration:none;box-shadow:0 0 0 4px var(--accent);border-radius:4px;outline:none;}
.tags{display:flex;gap:7px;flex-wrap:wrap;justify-self:end;max-width:100%;}
.tag{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--sub);border:1px solid var(--line2);border-radius:999px;padding:3px 10px;text-decoration:none;overflow-wrap:anywhere;}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:96px;flex-shrink:0;}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:18px;padding-bottom:40px;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted);overflow-wrap:anywhere;}
.footer-inner a{color:var(--muted);text-decoration:none;}
.footer-inner a:hover{color:var(--accent);}

/* ---------- archive ---------- */
.page-head{padding:34px 4px 0;}
.page-head h1{font-family:var(--head);font-weight:600;font-size:34px;margin:0 0 6px;}
.page-head p{margin:0;color:var(--sub);font-size:16px;}
.filters{display:flex;flex-wrap:wrap;gap:9px;padding:22px 4px 0;}
.chip{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink);background:var(--card);border:1.5px solid var(--ink);border-radius:999px;padding:6px 14px;text-decoration:none;}
.chip:hover,.chip.active{background:var(--accent);border-color:var(--accent);color:#fff;}
.chip.all{background:var(--ink);color:#fff;}
.chip.all:hover,.chip.all.active{background:var(--ink);border-color:var(--ink);}
.tag-group{padding-top:30px;scroll-margin-top:20px;}
.tag-group h2{font-family:var(--mono);font-size:13px;letter-spacing:.06em;text-transform:uppercase;font-weight:500;border-bottom:1.5px solid var(--ink);padding-bottom:10px;margin:0 0 6px;display:flex;gap:10px;align-items:baseline;}
.tag-group h2 .count{color:var(--muted);font-size:12px;}
.arch-row{display:grid;grid-template-columns:110px minmax(0,1fr);gap:26px;align-items:baseline;padding:13px 12px;border-bottom:1px solid var(--line);color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent;}
.arch-row .date{font-family:var(--mono);font-size:13px;color:var(--muted);}
.arch-row .title{font-family:var(--head);font-weight:600;font-size:17px;color:inherit;text-decoration:none;transition:background .12s,color .12s,box-shadow .12s;overflow-wrap:anywhere;-webkit-box-decoration-break:clone;box-decoration-break:clone;}
.post-row .title-link:hover,.post-row .title-link:focus,.post-row .title-link:active,.arch-row .title-link:hover,.arch-row .title-link:focus,.arch-row .title-link:active{background:var(--accent);color:#fff;text-decoration:none;box-shadow:0 0 0 4px var(--accent);border-radius:4px;outline:none;}

/* ---------- article ---------- */
.article{max-width:760px;margin:0 auto;padding:30px 4px 0;}
.back{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);text-decoration:none;}
.back:hover{color:var(--accent);}
.article .tags{justify-self:start;margin:16px 0 14px;}
.article .tags .tag:first-child{background:var(--accent);border-color:var(--accent);color:#fff;}
.article h1{font-family:var(--head);font-weight:600;font-size:38px;line-height:1.12;letter-spacing:-0.01em;margin:0 0 14px;text-wrap:balance;}
.article .meta{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding-bottom:22px;border-bottom:1.5px solid var(--ink);}

.prose{min-width:0;font-size:17px;line-height:1.75;color:#2C2D31;overflow-wrap:break-word;}
.prose h2{font-family:var(--head);font-weight:600;font-size:23px;color:var(--ink);margin:34px 0 8px;}
.prose h3{font-family:var(--head);font-weight:600;font-size:19px;color:var(--ink);margin:26px 0 6px;}
.prose p{margin:18px 0;}
.prose ul,.prose ol{margin:14px 0;padding-left:20px;}
.prose li{margin:6px 0;}
.prose a{color:var(--accent-dark);}
.prose :not(pre) > code{font-family:var(--mono);font-size:14px;background:#ECEAE3;color:var(--accent-dark);padding:2px 6px;border-radius:5px;}
.prose blockquote{margin:20px 0;border-left:3px solid var(--accent);background:var(--card);padding:14px 18px;border-radius:0 8px 8px 0;color:var(--ink);font-size:15px;line-height:1.6;}
.prose blockquote p{margin:0;}
.prose img{border-radius:8px;}
.prose hr{border:none;border-top:1px solid var(--line);margin:30px 0;}
.prose table{display:block;width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;overflow-x:auto;}
.prose th,.prose td{text-align:left;padding:9px 14px;border-bottom:1px solid var(--line);}
.prose thead th{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink);border-bottom:1.5px solid var(--ink);}
.prose tbody tr:hover{background:var(--card);}
.prose td{color:#2C2D31;}

/* code blocks (rouge / kramdown) */
.highlight,.prose pre{background:#16171B;color:#E6E6E6;border-radius:10px;padding:20px 22px;overflow-x:auto;margin:18px 0;font-family:var(--mono);font-size:13.5px;line-height:1.7;}
.highlight pre{margin:0;padding:0;background:none;overflow:visible;}
.highlight code,.prose pre code{font-family:var(--mono);background:none;padding:0;color:inherit;border:none;}
.highlight .c,.highlight .c1,.highlight .cm,.highlight .cs{color:#7E8088;font-style:italic;}
.highlight .k,.highlight .kt,.highlight .kd,.highlight .kc,.highlight .kr,.highlight .kn{color:#6EB6E0;}
.highlight .s,.highlight .s1,.highlight .s2,.highlight .se,.highlight .sb,.highlight .sc,.highlight .sd{color:#9FE88D;}
.highlight .mi,.highlight .mf,.highlight .m,.highlight .il,.highlight .mh,.highlight .mo{color:#9FE88D;}
.highlight .nf,.highlight .nx,.highlight .na{color:#E6E6E6;}
.highlight .nb,.highlight .bp,.highlight .nc,.highlight .nn{color:#6EB6E0;}
.highlight .o,.highlight .ow,.highlight .p{color:#C9CBD0;}
.highlight .nt{color:#6EB6E0;}
.highlight .err{color:#ff6b6b;}

.article-nav{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:34px;padding:18px 0 0;font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--muted);}

/* ---------- mobile ---------- */
@media (max-width:640px){
  .wrap{padding:0 16px;}
  .site-header{padding:16px 0 4px;}
  .header-inner{border-radius:14px;padding:10px 12px;}
  .logo img{height:40px;}
  .hamburger{display:flex;flex-direction:column;gap:4px;padding:6px;cursor:pointer;}
  .hamburger span{width:22px;height:2px;background:var(--ink);display:block;}
  .nav{display:none;position:absolute;top:calc(100% + 8px);right:0;left:0;background:var(--card);border:1.5px solid var(--ink);border-radius:14px;box-shadow:0 2px 0 var(--ink);flex-direction:column;align-items:stretch;gap:0;padding:6px;z-index:30;}
  .nav a{padding:11px 12px;border-radius:9px;font-family:var(--mono);font-size:13px;text-transform:uppercase;letter-spacing:.06em;}
  .nav a:hover{background:var(--bg);}
  .nav-toggle:checked ~ .nav{display:flex;}
  .intro{padding:24px 2px 4px;}
  .intro h1{font-size:28px;}
  .intro p{font-size:15px;}
  .social{gap:9px;}
  .social .btn{flex:1;justify-content:center;padding:9px;font-size:11.5px;}
  .list-head{margin-top:24px;}
  .post-row{grid-template-columns:1fr;gap:7px;padding:13px 4px;}
  .post-row .date{font-size:11.5px;}
  .post-row .title{font-size:16px;}
  .tags{justify-self:start;}
  .arch-row{grid-template-columns:1fr;gap:3px;padding:10px 4px;}
  .page-head h1{font-size:26px;}
  .article{padding:18px 2px 0;}
  .article h1{font-size:24px;}
  .prose{font-size:15.5px;}
  .prose h2{font-size:19px;}
  .highlight,.prose pre{padding:16px;font-size:12px;}
  .site-footer{margin-top:72px;}
  .footer-inner{flex-direction:row;gap:10px;align-items:center;justify-content:space-between;padding-top:22px;padding-bottom:32px;}
  .footer-inner span:last-child{margin-left:auto;text-align:right;}
}