:root{
  --bg-1: #0b0f14;
  --bg-2: #0f1720;
  --glass: rgba(255,255,255,0.04);
  --muted: #9aa4b2;
  --accent: #6ee7b7;
  --card-radius: 14px;
  --max-width: 900px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Courier New", monospace;
  color-scheme: dark;
}

*{box-sizing:border-box}
html,body,#app{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: radial-gradient(1000px 600px at 10% 10%, rgba(108,99,255,0.06), transparent 8%),
              radial-gradient(800px 500px at 90% 90%, rgba(102,232,255,0.02), transparent 8%),
              linear-gradient(180deg,var(--bg-1), var(--bg-2));
  -webkit-font-smoothing:antialiased;
  color:#e6eef6;
  padding:28px;
  display:flex;
  align-items:flex-start;
  justify-content:center;
}

/* Layout */
#app{
  width:100%;
  max-width:1200px;
  display:grid;
  grid-template-columns: 300px 1fr;
  gap:28px;
  align-items:start;
}

/* Sidebar */
#sidebar{
  position:sticky;
  top:28px;
  align-self:start;
  height: calc(100vh - 56px);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-radius: var(--card-radius);
  padding:14px;
  display:flex;
  flex-direction:column;
  backdrop-filter: blur(8px) saturate(120%);
  border: 1px solid rgba(255,255,255,0.03);
  box-shadow: 0 6px 20px rgba(2,6,23,0.6);
}

/* Header */
.site-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin-bottom:12px;
}
#site-title{
  font-weight:600;
  color:var(--accent);
  text-decoration:none;
  letter-spacing:0.6px;
  font-size:1.05rem;
}
#toggle-list{
  background:none;
  border:0;
  color:var(--muted);
  font-size:1.1rem;
  cursor:pointer;
}

/* Post list */
#post-list{
  overflow:auto;
  padding-right:8px;
  flex:1;
}
.post-item{
  display:block;
  padding:10px 8px;
  border-radius:8px;
  color: #dbe9f0;
  text-decoration:none;
  margin-bottom:6px;
  font-size:0.95rem;
  transition: background .12s, transform .06s;
}
.post-item .meta{display:block;font-size:0.82rem;color:var(--muted)}
.post-item:hover{background: rgba(255,255,255,0.02); transform:translateY(-1px)}

/* Content area */
#content{
  min-height:60vh;
  display:flex;
  align-items:flex-start;
  justify-content:center;
}
#post{
  width:100%;
  max-width:var(--max-width);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  padding:32px;
  border-radius:18px;
  backdrop-filter: blur(10px) saturate(120%);
  border:1px solid rgba(255,255,255,0.03);
  box-shadow: 0 10px 40px rgba(2,6,23,0.65);
}

/* Meta */
#post-title{margin:0 0 6px 0;font-size:1.8rem}
.submeta{color:var(--muted);font-size:0.9rem;margin-bottom:18px}

/* Prose */
.prose{line-height:1.6;color:#dbe9f0}
.prose h2, .prose h3, .prose h4{color:#f5fbff;margin-top:1.2rem}
.prose p{margin:0 0 1rem 0}
.prose img{max-width:100%;border-radius:10px}
.prose pre{background: rgba(0,0,0,0.45); padding:12px;border-radius:10px; overflow:auto; font-family:var(--mono); font-size:0.9rem}
.prose code{background: rgba(255,255,255,0.02); padding:0.15rem 0.35rem; border-radius:6px; font-family:var(--mono); font-size:0.92rem}
.prose blockquote{border-left:3px solid rgba(255,255,255,0.04); padding-left:12px; color:var(--muted)}

/* Post actions */
.post-actions{display:flex;gap:8px;margin-top:18px}
.post-actions button{
  background:transparent;color:var(--accent);border:1px solid rgba(110,231,183,0.12); padding:8px 12px;border-radius:8px;cursor:pointer;font-weight:600
}

/* Footer */
.sidebar-footer{text-align:center;color:var(--muted);font-size:0.82rem;padding-top:10px}

/* Responsive */
@media (max-width:880px){
  #app{grid-template-columns: 1fr; padding:18px}
  #sidebar{order:2; position:relative; height:auto}
  #toggle-list{display:inline-block}
}