:root{
  --bg:#0b0f14;
  --panel:#0f1720;
  --muted:#9aa5b1;
  --accent:#00a3ff; /* cyber blue */
  --glass: rgba(255,255,255,0.04);
  --radius:14px;
  --transition: all .28s cubic-bezier(.22,.9,.29,1);
  --maxw:1100px;
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:linear-gradient(180deg,#06080a 0%, #0b0f14 100%);
  color:#e6eef6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}

/* container */
.container{max-width:var(--maxw);margin:0 auto;padding:28px;}

/* header */
.site-header{
  backdrop-filter: blur(6px);
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(6,8,10,0.6), rgba(6,8,10,0.35));
  border-bottom:1px solid rgba(255,255,255,0.03);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;}
.brand h1{margin:0;font-size:1.05rem;letter-spacing:0.6px}
.tagline{margin:3px 0 0;font-size:.78rem;color:var(--muted)}
.nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-weight:600}
.nav a:hover{color:var(--accent);transform:translateY(-2px);transition:var(--transition)}

/* hero */
.hero{display:flex;gap:32px;align-items:center;padding:48px 0}
.hero-left{flex:1;max-width:640px}
.hero-right{width:220px;display:flex;align-items:center;justify-content:center}
.hero-right img{
  width:180px;height:180px;border-radius:999px;object-fit:cover;border:4px solid rgba(255,255,255,0.04);
  box-shadow:0 8px 30px rgba(0,0,0,0.6);transition:transform .6s cubic-bezier(.22,.9,.29,1);
}
.hero-right img:hover{transform:rotate(-6deg) scale(1.02)}
h2{font-size:2.1rem;margin:0 0 12px}
.accent{color:var(--accent)}
.lead{color:var(--muted);font-size:1.05rem;margin:0 0 18px}

/* buttons */
.btn{display:inline-block;padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:700}
.btn.primary{background:linear-gradient(135deg,var(--accent),#38c8ff);color:#03101a;box-shadow:0 8px 30px rgba(0,163,255,0.12)}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--muted)}
.btn:hover{transform:translateY(-4px);transition:var(--transition)}

/* quick skills */
.quick-skills{display:flex;gap:10px;list-style:none;padding:0;margin:20px 0 0}
.quick-skills li{background:var(--glass);padding:8px 12px;border-radius:999px;color:var(--muted);font-weight:600}

/* about */
.about{padding:40px 0}
.about h3{margin:0 0 12px}
.skills-grid{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}
.skill{background:rgba(255,255,255,0.03);padding:10px 14px;border-radius:12px;color:var(--muted);font-weight:700}

/* projects */
.projects{padding:40px 0}
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.project-card{background:linear-gradient(180deg,rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:18px;border-radius:12px;border:1px solid rgba(255,255,255,0.03);transition:var(--transition)}
.project-card:hover{transform:translateY(-8px);box-shadow:0 15px 40px rgba(0,0,0,0.6)}
.project-card h4{margin:0 0 8px}
.proj-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.proj-tags span{background:rgba(255,255,255,0.03);padding:6px 10px;border-radius:999px;font-size:.85rem}

/* contact */
.contact{padding:40px 0}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.contact-card{background:rgba(255,255,255,0.02);padding:14px;border-radius:12px}
.contact-card a{color:var(--accent);text-decoration:none}

/* footer */
.site-footer{border-top:1px solid rgba(255,255,255,0.03);padding:18px 0;margin-top:20px;text-align:center;color:var(--muted)}

/* responsive */
@media (max-width:900px){
  .hero{flex-direction:column-reverse;gap:18px;padding:28px 0}
  .hero-right{width:160px}
  .hero-right img{width:140px;height:140px}
  .header-inner{flex-direction:column;align-items:flex-start;gap:12px}
}

.contact-btn {
  background-color: #0077ff; /* cyber blue */
  color: white;
  padding: 10px 20px;
  text-decoration: none;
  border-radius: 8px;
  transition: 0.3s ease;
}

.contact-btn:hover {
  background-color: #005fcb;
}