:root{
  --text:#111;
  --muted:#666;
  --link:#0a66c2;
  --border:#e6e6e6;
  --bg:#ffffff;
  --chip:#f5f5f7;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  min-height:100vh;
}

a{color:var(--link); text-decoration:none}
a:hover{text-decoration:underline}

.container{
  max-width:1100px;
  margin:0 auto;
  padding:28px 18px 56px;
}

.topnav{
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 0 18px;
  border-bottom:1px solid var(--border);
  margin-bottom:26px;
}

.brand{
  font-weight:700;
  margin-right:auto;
}

.nav a{
  color:var(--muted);
  padding:8px 10px;
  border-radius:10px;
}
.nav a.active{
  color:var(--text);
  background:var(--chip);
  font-weight:600;
}

.grid{
  display:grid;
  grid-template-columns: 270px 1fr;
  gap:28px;
}

.card{
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  position:sticky;
  top:18px;
  height:fit-content;
}

.avatar{
  width:110px;
  height:110px;
  border-radius:999px;
  background:linear-gradient(135deg,#f2f2f2,#dcdcdc);
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:14px;
}

.avatar img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.h1{
  font-size:26px;
  margin:0 0 4px;
}

.sub{
  color:var(--muted);
  margin:0 0 12px;
  font-size:14px;
}

.meta{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:12px;
  font-size:14px;
  color:var(--muted);
}
.meta span{
  display:flex;
  gap:8px;
  align-items:center;
}

.chips{display:flex; flex-wrap:wrap; gap:8px; margin:10px 0 18px}
.chip{
  background:var(--chip);
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
}

.main h2{
  margin:0 0 10px;
  font-size:22px;
}
.main p{margin:0 0 12px}

.item{
  border-top:1px solid var(--border);
  padding-top:14px;
  margin-top:14px;
}
.item h3{
  margin:0 0 6px;
  font-size:16px;
}
.small{color:var(--muted); font-size:14px}
.small ul{margin:0; padding-left:18px}
.small li{margin:10px 0}

/* Project demo images */
.demo-img{
  display:block;
  width:100%;
  max-width:800px;
  height:auto;
  border:1px solid var(--border);
  border-radius:8px;
  margin:10px 0;
}

/* Lucide icon tuning */
.meta i{
  width:16px;
  height:16px;
  stroke-width:1.8;
  flex:0 0 auto;
}

@media (max-width: 860px){
  .grid{grid-template-columns:1fr}
  .card{position:relative; top:0}
}

/* Prevent long lines from looking "cut off" */
.small, .small li, .small p{
  overflow-wrap:anywhere;
  word-break:break-word;
}

@media (max-width: 768px) {
  .container {
    padding: 16px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .topnav .nav a {
    padding: 6px 10px;
    font-size: 14px;
  }
}

/* Keep layout aligned across pages (avoid scrollbar width shift) */
html { 
  overflow-y: scroll; 
  scrollbar-gutter: stable;
}