:root{
  --bg:#ffffff;
  --text:#111318;
  --text-muted:#5b616e;
  --border:#e9eaed;
  --maxw:680px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --radius:18px;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
a{color:inherit;text-decoration:none}

/* ---------- header ---------- */
.site-header{padding:22px 0}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;font-size:17px;letter-spacing:-.01em}
.dot{width:10px;height:10px;border-radius:50%;background:#e5417f}

/* ---------- intro ---------- */
.intro{padding:8px 0 34px}
.intro h1{font-size:30px;font-weight:800;letter-spacing:-.02em;margin:0 0 12px}
.intro p{color:var(--text-muted);font-size:16px;max-width:56ch;margin:0}

/* ---------- post list / cards ---------- */
.post-list{display:flex;flex-direction:column;gap:38px;padding-bottom:60px}
.post-card{display:block}
.post-card .cover{
  height:220px;border-radius:var(--radius);position:relative;overflow:hidden;
  display:flex;align-items:flex-start;justify-content:flex-end;padding:16px;
  transition:transform .18s ease;
}
.post-card:hover .cover{transform:translateY(-2px)}
.cover-date{
  background:rgba(255,255,255,.92);color:#111;font-size:12.5px;font-weight:700;
  padding:6px 12px;border-radius:20px;
}
.cover-icon{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;opacity:.95}
.cover-icon svg{width:96px;height:96px}
.post-card h2{font-size:21px;font-weight:800;letter-spacing:-.01em;margin:16px 0 4px}
.post-card p{color:var(--text-muted);font-size:15px;margin:0}

/* ---------- single article ---------- */
.single{padding-bottom:70px}
.single-cover{
  height:260px;border-radius:var(--radius);margin:10px 0 26px;position:relative;overflow:hidden;
  display:flex;align-items:flex-start;justify-content:flex-end;padding:18px;
}
.single-cover .cover-icon.large svg{width:140px;height:140px}
.single h1{font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0 0 8px}
.single-subtitle{color:var(--text-muted);font-size:17px;margin:0 0 18px}
.single-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--text-muted);
  border-bottom:1px solid var(--border);padding-bottom:20px;margin-bottom:28px;flex-wrap:wrap}
.tag{background:#f2f3f5;padding:3px 10px;border-radius:12px;font-weight:600}

.content{font-size:17.5px;line-height:1.75}
.content h2{font-size:23px;font-weight:800;margin-top:38px;letter-spacing:-.01em}
.content h3{font-size:19px;font-weight:700;margin-top:28px}
.content p{margin:16px 0}
.content ul,.content ol{padding-left:22px}
.content li{margin:6px 0}
.content strong{font-weight:700}
.content em{font-style:italic}
.content pre{
  background:#161821;color:#e5e7eb;padding:18px;border-radius:12px;overflow-x:auto;
  font-family:var(--mono);font-size:13.5px;line-height:1.6;margin:22px 0;
}
.content code{
  background:#f2f3f5;color:#111;padding:2px 6px;border-radius:5px;
  font-family:var(--mono);font-size:.88em;
}
.content pre code{background:none;color:inherit;padding:0}
.content blockquote{
  border-left:3px solid #111;margin:24px 0;padding:2px 20px;color:var(--text-muted);font-style:italic;
}
.content img{border-radius:12px;margin:20px 0;max-width:100%}

.single-footer{margin-top:40px;padding-top:20px;border-top:1px solid var(--border);font-weight:700}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--border);padding:44px 0 30px;margin-top:20px}
.subscribe{display:flex;gap:16px;align-items:center;margin-bottom:34px}
.avatar{width:52px;height:52px;border-radius:50%;background:#111}
.sub-label{font-size:13px;color:var(--text-muted);margin-bottom:8px;font-weight:600}
.sub-form{display:flex;gap:8px}
.sub-form input{
  border:1px solid var(--border);border-radius:8px;padding:9px 12px;font-size:14px;width:220px;
}
.sub-form button{
  background:#111;color:#fff;border:none;border-radius:8px;padding:9px 16px;font-weight:700;
  font-size:14px;cursor:pointer;
}
.social-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.social-row>span{font-size:13px;color:var(--text-muted);font-weight:600}
.social-links{display:flex}
.social-links a{margin-right:16px}
.social-links a:last-child{margin-right:0}
.social-links a{font-size:13.5px;font-weight:700}
.copyright{font-size:12.5px;color:var(--text-muted)}

@media (max-width:600px){
  .intro h1{font-size:26px}
  .single h1{font-size:27px}
  .post-card .cover{height:190px}
  .sub-form{flex-direction:column}
  .sub-form input{width:100%}
}