:root{
  --bg:#0d0f13;
  --bg-raised:#12151a;
  --line:#1e242c;
  --fg:#e6ebf0;
  --fg-dim:#8a94a1;
  --fg-faint:#787f88;
  --accent:#00acd7;
  --accent-dim:#0a3a48;
  --tag-bg:#152029;
  --code-bg:#090b0e;
}

*{box-sizing:border-box;}
html{background:var(--bg);}
body{
  background:var(--bg);
  color:var(--fg);
  font-family:'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;
  margin:0;
  padding:0 20px;
  display:flex;
  flex-direction:column;
  align-items:center;
}
/* Flex items default to min-width:auto, so a long unbreakable line inside
   a code block would otherwise force this item (and the page) wider than
   the viewport instead of scrolling inside its own `pre`. */
body > *{min-width:0; width:100%;}

a{color:inherit;}
img{max-width:100%;}

/* ---- header ---- */
header.site{
  max-width:720px; width:100%;
  padding:34px 0 22px;
  border-bottom:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:16px;
  flex-wrap:wrap;
}
.brand h1{
  margin:2px 0 0;
  font-size:22px;
  font-weight:800;
  letter-spacing:-.01em;
}
.brand h1 a{text-decoration:none; color:var(--fg);}
.brand p{margin:6px 0 0; font-size:12.5px; color:var(--fg-dim);}

nav.site{display:flex; gap:2px; flex-wrap:wrap;}
nav.site a{
  font-size:12px;
  color:var(--fg-dim);
  text-decoration:none;
  padding:7px 10px;
  border-radius:6px;
}
nav.site a:hover{background:var(--bg-raised); color:var(--fg);}
nav.site a.rss{color:var(--accent);}
nav.site a.active{color:var(--fg);}
nav.site a.lang-switch{border:1px solid var(--line);}
nav.site a.lang-switch:hover{border-color:var(--accent); color:var(--accent);}

.search-toggle{
  font-family:inherit;
  font-size:12px;
  color:var(--fg-dim);
  background:none;
  border:none;
  cursor:pointer;
  padding:7px 10px;
  border-radius:6px;
}
.search-toggle:hover{background:var(--bg-raised); color:var(--fg);}

/* ---- search overlay ---- */
.search-overlay{
  position:fixed; inset:0;
  background:rgba(5,7,9,.7);
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding:12vh 16px 16px;
  z-index:100;
}
.search-overlay[hidden]{display:none;}
.search-panel{
  width:100%; max-width:560px;
  max-height:70vh;
  display:flex;
  flex-direction:column;
  background:var(--bg-raised);
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:0 20px 60px rgba(0,0,0,.5);
  overflow:hidden;
}
.search-field{
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  flex:none;
}
.search-icon{color:var(--fg-faint); font-size:14px;}
#search-input{
  flex:1;
  background:none;
  border:none;
  outline:none;
  font-family:inherit;
  font-size:14px;
  color:var(--fg);
}
#search-input::placeholder{color:var(--fg-faint);}
#search-close{
  background:none;
  border:none;
  color:var(--fg-faint);
  cursor:pointer;
  font-size:13px;
  padding:4px;
}
#search-close:hover{color:var(--fg);}

.search-results{overflow-y:auto; padding:6px;}
.search-result{
  display:flex;
  flex-direction:column;
  gap:3px;
  padding:10px;
  border-radius:8px;
  text-decoration:none;
}
.search-result:hover, .search-result:focus{background:var(--bg);}
.search-result .title{font-size:13.5px; font-weight:600; color:var(--fg);}
.search-result .excerpt{font-size:12px; color:var(--fg-dim); line-height:1.5;}
.search-result .excerpt mark{background:var(--tag-bg); color:var(--accent); border-radius:3px; padding:0 2px;}
.search-empty, .search-loading{padding:20px 16px; font-size:12.5px; color:var(--fg-faint); text-align:center;}

@media (max-width:480px){
  .search-overlay{padding:8vh 12px 12px;}
}

main{max-width:720px; width:100%; padding:28px 0 10px;}

.section-label{
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--fg-faint);
  margin:0 0 14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.section-label::after{content:""; flex:1; height:1px; background:var(--line);}

/* ---- post list ---- */
ul.post-list{list-style:none; margin:0 0 8px; padding:0; display:flex; flex-direction:column;}
.post-row{
  padding:15px 4px;
  border-bottom:1px solid var(--line);
  display:grid;
  grid-template-columns:96px 1fr;
  gap:14px;
}
.post-row:first-child{padding-top:2px;}
.post-row .date{font-size:11.5px; color:var(--fg-faint); padding-top:2px; white-space:nowrap;}
.post-row .title{
  font-size:18px;
  font-weight:600;
  text-decoration:none;
  color:var(--fg);
}
.post-row .title:hover{color:var(--accent);}
.post-row .excerpt{margin:5px 0 8px; font-size:14.5px; color:var(--fg-dim); line-height:1.55;}
.tags{display:flex; gap:6px; flex-wrap:wrap;}
.tag{
  font-size:10.5px;
  color:var(--accent);
  background:var(--tag-bg);
  border:1px solid var(--accent-dim);
  border-radius:999px;
  padding:2px 9px;
  text-decoration:none;
}

@media (max-width:480px){
  .post-row{grid-template-columns:1fr;}
  .post-row .date{order:2; padding-top:0;}
}

.pager{display:flex; justify-content:center; align-items:center; gap:14px; margin:6px 0 4px;}
.pager span, .pager a{font-size:11.5px; color:var(--fg-faint); text-decoration:none;}
.pager a:hover{color:var(--accent);}

/* ---- single article / page ---- */
/* No border-top here: article.post always sits directly under header.site,
   which already draws the divider line below the nav. */
article.post{
  max-width:720px; width:100%;
  padding:38px 0 10px;
}
.post-crumb{font-size:11.5px; color:var(--fg-faint); margin-bottom:14px;}
.post-crumb a{color:var(--accent); text-decoration:underline; text-decoration-color:var(--accent-dim); text-underline-offset:2px;}
.post-crumb a:hover{text-decoration-color:var(--accent);}
article.post h2.post-title{
  font-size:26px;
  font-weight:800;
  margin:0 0 18px;
  letter-spacing:-.01em;
}
.post-meta{margin-bottom:18px; display:flex; align-items:center; gap:12px; flex-wrap:wrap;}
.post-byline-avatar{
  width:40px; height:40px; border-radius:50%; flex:none;
  background:linear-gradient(135deg,#00acd7,#0a3a48);
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:14px; color:#0d0f13;
  overflow:hidden; text-decoration:none;
}
.post-byline-avatar img{width:100%; height:100%; object-fit:cover;}
.post-byline-info{display:flex; flex-direction:column; gap:2px;}
.post-byline-name{font-size:13.5px; font-weight:700; color:var(--fg); text-decoration:none;}
.post-byline-name:hover{color:var(--accent);}
.post-byline-meta{font-size:12px; color:var(--fg-dim);}
.post-byline-meta span{margin-left:5px;}

.post-content, article.post p{font-size:18px; line-height:1.65; color:#c7cfd8; margin:0 0 16px; overflow-wrap:break-word;}
.post-content h3, .post-content h4, .post-content h5, .post-content h6{
  color:var(--fg); line-height:1.35; font-weight:700; letter-spacing:-.01em;
  margin:28px 0 12px;
  scroll-margin-top:20px;
}
.post-content h3{font-size:22px;}
.post-content h4{font-size:19.5px;}
.post-content h5{font-size:18.5px;}
.post-content h6{font-size:18px;}
.post-content a{color:var(--accent); text-decoration:underline; text-decoration-color:var(--accent-dim); text-underline-offset:3px;}
.post-content a:hover{text-decoration-color:var(--accent);}

.post-content .headerlink{
  margin-left:8px;
  color:var(--fg-faint);
  text-decoration:none;
  font-weight:400;
  opacity:0;
}
.post-content h3:hover .headerlink,
.post-content h4:hover .headerlink,
.post-content h5:hover .headerlink,
.post-content h6:hover .headerlink,
.post-content .headerlink:focus{
  opacity:1;
}
.post-content .headerlink:hover{color:var(--accent);}
.post-content blockquote{
  margin:0 0 16px; padding:2px 16px;
  border-left:3px solid var(--accent-dim);
  color:var(--fg-dim);
}
.post-content ul, .post-content ol{color:#c7cfd8; line-height:1.75; padding-left:22px;}
.post-content img{border-radius:8px; display:block; margin:8px auto;}

/* ---- tables ---- */
.post-content .table-wrap{overflow-x:auto; margin:0 0 20px;}
.post-content table{
  border-collapse:collapse;
  width:100%;
  font-size:13px;
  margin:0;
}
.post-content th, .post-content td{
  border:1px solid var(--line);
  padding:8px 12px;
  text-align:left;
  white-space:nowrap;
}
.post-content thead th{
  background:var(--bg-raised);
  color:var(--fg);
  font-weight:600;
  font-size:11.5px;
  text-transform:uppercase;
  letter-spacing:.04em;
}
.post-content tbody tr:nth-child(even){background:rgba(255,255,255,.02);}

.post-content code, article.post p code{
  background:var(--tag-bg); color:var(--accent);
  padding:1px 6px; border-radius:4px; font-size:14px;
  font-family:'JetBrains Mono', monospace;
}

.post-content pre, .highlight pre, pre{
  position:relative;
  font-family:'JetBrains Mono', monospace;
  font-size:14px;
  line-height:1.7;
  background:var(--code-bg);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:8px;
  padding:16px 18px;
  overflow-x:auto;
  margin:0 0 18px;
  white-space:pre;
}
.post-content pre code{background:none; color:var(--fg); padding:0;}

.copy-btn{
  position:absolute; top:8px; right:8px;
  font-family:'JetBrains Mono', monospace;
  font-size:10.5px;
  background:var(--bg-raised);
  color:var(--fg-dim);
  border:1px solid var(--line);
  border-radius:6px;
  padding:4px 9px;
  cursor:pointer;
}
.copy-btn:hover{color:var(--fg); border-color:var(--accent);}
.copy-btn.copied{color:var(--accent); border-color:var(--accent-dim);}

/* Pygments token colors, kept subtle to match the accent palette */
.highlight .k, .highlight .kc, .highlight .kd, .highlight .kn,
.highlight .kp, .highlight .kr, .highlight .kt, .highlight .ow { color:var(--accent); font-weight:600; }
.highlight .c, .highlight .c1, .highlight .cm, .highlight .cp, .highlight .cs { color:var(--fg-faint); font-style:italic; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sc,
.highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sr,
.highlight .ss, .highlight .sx { color:#9fd88b; }
.highlight .m, .highlight .mf, .highlight .mh, .highlight .mi, .highlight .mo { color:#d8b56f; }
.highlight .nb, .highlight .nc, .highlight .ne, .highlight .nf, .highlight .nn { color:#7fc4e0; }
.highlight .nd, .highlight .nt { color:var(--accent); }
.highlight .n, .highlight .na, .highlight .nl, .highlight .nv, .highlight .nx, .highlight .no { color:var(--fg); }
.highlight .o, .highlight .p { color:var(--fg-dim); }
.highlight .err { color:#e06c75; }

.post-tags{display:flex; gap:6px; flex-wrap:wrap; margin:22px 0 26px;}

.updown{
  display:grid; grid-template-columns:1fr 1fr; gap:10px;
  border-top:1px solid var(--line); padding-top:18px; margin-bottom:30px;
}
.updown a{
  text-decoration:none; font-size:12px; color:var(--fg-dim);
  border:1px solid var(--line); border-radius:8px; padding:10px 12px;
  display:flex; flex-direction:column; gap:4px;
}
.updown a:hover{border-color:var(--accent); color:var(--fg);}
.updown .lbl{color:var(--fg-faint); font-size:10.5px; text-transform:uppercase; letter-spacing:.08em;}
.updown a.next{text-align:right; align-items:flex-end; grid-column:2;}
.updown a.prev{grid-column:1;}

@media (max-width:480px){
  .updown{grid-template-columns:1fr;}
  .updown a.next{text-align:left; align-items:flex-start; grid-column:1;}
}

.discuss{margin-bottom:34px;}
.discuss .section-label{margin-bottom:16px;}

/* ---- simple list pages: archives, tags, categories, authors ---- */
.simple-list{list-style:none; margin:0; padding:0;}
.simple-list dt{font-size:11.5px; color:var(--fg-faint); margin-top:14px;}
.simple-list dd{margin:4px 0 0; padding:0;}
.simple-list dd a{font-size:16px; text-decoration:none; color:var(--fg);}
.simple-list dd a:hover{color:var(--accent);}

.tag-cloud{display:flex; flex-wrap:wrap; gap:8px; padding:10px 0;}
.tag-cloud a{
  font-size:12px; text-decoration:none; color:var(--accent);
  background:var(--tag-bg); border:1px solid var(--accent-dim);
  border-radius:999px; padding:3px 11px;
}

.entry-list{list-style:none; margin:0; padding:0;}
.entry-list li{padding:12px 4px; border-bottom:1px solid var(--line); font-size:16px;}
.entry-list li a{text-decoration:none; color:var(--fg);}
.entry-list li a:hover{color:var(--accent);}
.entry-list li .count{color:var(--fg-faint); font-size:12px;}

/* ---- footer ---- */
footer.site{
  max-width:720px; width:100%;
  border-top:1px solid var(--line);
  padding:28px 0 40px;
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  justify-content:space-between;
}
.bio{display:flex; gap:12px; max-width:480px;}
.bio .who b{color:var(--fg);}
.bio p{font-size:13.5px; color:var(--fg-dim); line-height:1.6; margin:4px 0 8px;}
.bio .links a{font-size:12px; color:var(--accent); text-decoration:none; margin-right:14px;}
.bio .links a:hover{text-decoration:underline;}
.avatar{
  width:44px; height:44px; border-radius:8px; flex:none;
  background:linear-gradient(135deg,#00acd7,#0a3a48);
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:16px; color:#0d0f13;
  overflow:hidden;
}
.avatar img{width:100%; height:100%; object-fit:cover;}
.copyline{font-size:11px; color:var(--fg-faint); align-self:flex-end;}