:root{
  --bg:#ffffff; --surface:#f7f8fc; --card:#ffffff; --border:#e6e8f0;
  --text:#1a1d2b; --muted:#616a86; --brand:#6d28d9; --brand2:#06b6d4;
  --accent:#8b5cf6; --shadow:0 1px 3px rgba(20,20,50,.06),0 8px 24px rgba(20,20,50,.06);
  --radius:16px; --wrap:1120px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0e1017; --surface:#141824; --card:#171b28; --border:#262c3d;
    --text:#e8eaf2; --muted:#9aa3bd; --brand:#a78bfa; --brand2:#22d3ee; --accent:#a78bfa;
    --shadow:0 1px 3px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}

/* Header */
.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center}
.brand img{display:block;color:var(--text)}
.search{margin-left:auto;flex:0 1 320px}
.search input{width:100%;padding:9px 14px;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--text);font-size:14px}
.search input:focus{outline:2px solid var(--accent);outline-offset:1px}
.mainnav{display:flex;gap:18px;font-weight:600;font-size:14px}
.mainnav a{color:var(--muted)}
.mainnav a:hover{color:var(--text);text-decoration:none}

/* Hero */
.hero{padding:56px 0 32px;text-align:center}
.hero h1{font-size:clamp(32px,5vw,52px);margin:0 0 10px;background:linear-gradient(120deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:18px;margin:0}

.listing-title{font-size:30px;margin:32px 0 4px}
.listing-intro{color:var(--muted);margin:0 0 20px}

/* Grid + cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin:24px 0}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 34px rgba(20,20,50,.12)}
.card-cover img{width:100%;height:170px;object-fit:cover;display:block}
.card-body{padding:18px 20px 20px}
.card-title{font-size:19px;line-height:1.35;margin:0 0 8px}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--brand);text-decoration:none}
.card-excerpt{color:var(--muted);font-size:14.5px;margin:0 0 14px}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--muted)}
.tag{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:2px 10px;color:var(--muted);font-size:12px}
.tag:hover{color:var(--brand);text-decoration:none;border-color:var(--accent)}

/* Article */
.post{max-width:760px;margin:32px auto}
.post-header h1{font-size:clamp(28px,4vw,40px);line-height:1.2;margin:0 0 12px}
.post-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
.post-cover{width:100%;border-radius:var(--radius);margin-bottom:24px}
.prose{font-size:17px}
.prose h2{font-size:26px;margin:36px 0 12px;padding-top:8px}
.prose h3{font-size:21px;margin:28px 0 10px}
.prose p{margin:0 0 18px}
.prose img{border-radius:10px;margin:14px 0;border:1px solid var(--border)}
.prose pre{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px;overflow-x:auto;font-size:14px}
.prose code{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:1px 6px;font-size:.9em}
.prose pre code{background:none;border:none;padding:0}
.prose blockquote{border-left:4px solid var(--accent);margin:18px 0;padding:2px 18px;color:var(--muted)}
.prose table{border-collapse:collapse;width:100%;margin:18px 0;font-size:15px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--border);padding:8px 12px;text-align:left}
.prose a{text-decoration:underline}
.prose a.autolink{text-decoration:none;border-bottom:1px dashed var(--accent);color:var(--brand);font-weight:600}
.prose a.autolink:hover{background:color-mix(in srgb,var(--accent) 12%,transparent);border-bottom-style:solid}

.related{max-width:1120px;margin:48px auto 0;border-top:1px solid var(--border);padding-top:12px}
.related h3{font-size:18px}

/* Pager */
.pager{display:flex;align-items:center;justify-content:center;gap:16px;margin:32px 0}
.page{padding:8px 16px;border:1px solid var(--border);border-radius:999px;background:var(--card);font-size:14px;font-weight:600}
.page:hover{text-decoration:none;border-color:var(--accent)}
.page.disabled{opacity:.4;pointer-events:none}
.page-info{color:var(--muted);font-size:13px}

/* Tags page */
.tagcloud{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}
.tagchip{background:var(--card);border:1px solid var(--border);border-radius:999px;padding:8px 16px;color:var(--text);font-weight:600;font-size:14px}
.tagchip span{color:var(--muted);font-weight:400;margin-left:4px}
.tagchip:hover{border-color:var(--accent);text-decoration:none}

.empty,.notfound{text-align:center;color:var(--muted);padding:60px 0}
.notfound h1{font-size:72px;margin:0;background:linear-gradient(120deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}

/* Footer */
.site-footer{border-top:1px solid var(--border);margin-top:64px;padding:36px 0;text-align:center;color:var(--muted)}
.site-footer p{margin:6px 0}
.foot-brand{margin-bottom:8px}
.foot-links{margin:8px 0;font-size:13.5px;font-weight:600}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--brand)}
/* HTML sitemap page */
.sm-group{margin:26px 0}
.sm-group h2{font-size:19px;margin:0 0 10px;border-bottom:1px solid var(--border);padding-bottom:6px}
.sm-list{columns:2;column-gap:40px;list-style:none;padding:0;margin:0}
.sm-list li{margin:0 0 7px;break-inside:avoid;font-size:14.5px}
@media(max-width:640px){.sm-list{columns:1}}

@media(max-width:640px){
  .mainnav{display:none}
  .search{flex:1}
  .header-inner{gap:12px}
}