:root{
  --bg: #f3f4f6;
  --card: #ffffff;
  --muted: #6b7280;
  --text: #0f172a;
  --accent: #4CAF50;
  --maxw: 1100px;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(16,24,40,0.06);
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background:var(--bg);
  color:var(--text);
  display:flex;
  flex-direction:column;
  align-items:center;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* header */
.site-header{
  width:100%;
  background:linear-gradient(180deg,var(--card),#f7faf9);
  border-bottom:1px solid rgba(15,23,42,0.04);
}
.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px;
}
.site-title{
  font-weight:700;
  color:var(--accent);
  font-size:1.25rem;
}
.header-controls{display:flex;gap:10px}
.btn.icon{
  background:transparent;border:1px solid rgba(15,23,42,0.06);padding:8px 10px;border-radius:8px;cursor:pointer;font-size:1rem;
}
.btn.icon:hover{transform:translateY(-2px);transition:all .15s ease}

/* main layout */
.container{
  max-width:var(--maxw);
  width:100%;
  display:grid;
  grid-template-columns:2fr 1.6fr 1fr;
  gap:20px;
  padding:28px 18px 80px;
}

/* cards */
.card{
  background:var(--card);
  padding:18px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  border:1px solid rgba(15,23,42,0.03);
}
.bio-card h2, .links-card h2, .profile-card h3 {margin:0 0 10px 0}
.meta{font-size:0.85rem;color:var(--muted);margin-top:8px}

/* profile */
.profile-card{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;padding-top:28px;padding-bottom:28px}
.profile-img{
  width:180px;height:180px;border-radius:50%;object-fit:cover;border:6px solid rgba(76,175,80,0.12);
  box-shadow:0 8px 24px rgba(16,24,40,0.08);
}

/* projects */
.projects-section{margin-top:18px}
.projects-grid{display:flex;flex-direction:column;gap:12px;margin-top:10px}
.project{
  background:linear-gradient(180deg,var(--card),#fbfdff);
  padding:12px;border-radius:10px;border:1px solid rgba(15,23,42,0.04);
  display:flex;gap:12px;align-items:flex-start;
}
.project img{width:86px;height:64px;object-fit:cover;border-radius:8px;flex-shrink:0}
.project .meta{font-size:0.78rem;color:var(--muted);margin-top:6px}

/* links */
.links-icons{display:flex;gap:12px;align-items:center}

/* footer */
footer{width:100%;max-width:var(--maxw);display:flex;justify-content:flex-end;padding:12px 18px 30px}
.counter{background:var(--card);padding:8px 12px;border-radius:10px;border:1px solid rgba(15,23,42,0.04);box-shadow:var(--shadow)}

/* responsive */
@media (max-width:980px){
  .container{grid-template-columns:1fr; padding:18px}
  .profile-img{width:140px;height:140px}
  .header-inner{padding:12px}
}
.dark{
  --bg:#0b0f12;
  --card:#0f1720;
  --muted:#9aa4b2;
  --text:#e6eef6;
}