:root{
  --bg:#0b0d12;
  --panel:#111522;
  --text:#e8ecf1;
  --muted:#a8b0bd;
  --border:rgba(255,255,255,.10);
  --accent:#7dd3fc;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --radius: 18px;
}

:root[data-theme="light"]{
  --bg:#f7f8fb;
  --panel:#ffffff;
  --text:#0b1020;
  --muted:#4e5a6d;
  --border:rgba(10,16,32,.12);
  --accent:#2563eb;
  --shadow: 0 12px 40px rgba(10,16,32,.12);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(125,211,252,.12), transparent 60%),
              radial-gradient(900px 500px at 90% 10%, rgba(37,99,235,.10), transparent 55%),
              var(--bg);
  color:var(--text);
}

.container{max-width:980px;margin:0 auto;padding:24px}

.site-header{
  position:sticky;top:0;z-index:10;
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--bg) 75%, transparent);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;
}

.logo{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--panel);border:1px solid var(--border);
  color:var(--text);text-decoration:none;font-weight:800;
  box-shadow: var(--shadow);
}

.nav{display:flex;gap:10px;align-items:center}
.nav a{
  color:var(--muted);text-decoration:none;
  padding:10px 12px;border-radius:12px;
}
.nav a.active,.nav a:hover{
  color:var(--text);
  background: color-mix(in oklab, var(--panel) 75%, transparent);
  border:1px solid var(--border);
}

.hero{padding:34px 0 18px}
.eyebrow{color:var(--muted);margin:0 0 8px}
h1{font-size: clamp(34px, 4.2vw, 54px);line-height:1.05;margin:0 0 12px}
.accent{color:var(--accent)}
.lead{color:var(--muted);font-size:1.05rem;max-width:70ch}

.hero-actions{display:flex;gap:12px;margin:18px 0 8px;flex-wrap:wrap}

.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:14px;
  margin:18px 0 10px;
}
.card{
  grid-column: span 12;
  background: color-mix(in oklab, var(--panel) 90%, transparent);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:18px;
  box-shadow: var(--shadow);
}
.card h2, .card h3{margin:0 0 8px}
.card p{margin:0 0 10px;color:var(--muted)}
.small{font-size:.9rem}

@media (min-width: 860px){
  .card{grid-column: span 4}
  .projects .card{grid-column: span 4}
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:14px;
  background:var(--accent);color:#001018;
  text-decoration:none;font-weight:700;border:1px solid transparent;
  cursor:pointer;
}
.btn.ghost{
  background: transparent;
  color: var(--text);
  border:1px solid var(--border);
}
.btn:hover{filter:brightness(1.02)}
.btn:active{transform: translateY(1px)}

.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.chip{
  padding:6px 10px;border-radius:999px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 70%, transparent);
  color: var(--muted);
  font-size:.9rem;
}

.list{margin:0;padding-left:18px;color:var(--muted)}
.links{display:flex;flex-direction:column;gap:8px}
.links a{color:var(--text);text-decoration:none}
.links a:hover{text-decoration:underline}

.page-head{padding:16px 0 0}
.form{display:grid;gap:10px}
label{display:grid;gap:6px;color:var(--muted);font-size:.95rem}
input,textarea{
  width:100%;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 80%, transparent);
  color:var(--text);
  outline:none;
}
input:focus,textarea:focus{border-color: color-mix(in oklab, var(--accent) 70%, var(--border))}

.card-actions{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap}

.footer{
  border-top:1px solid var(--border);
  padding:18px 24px;
  color:var(--muted);
  text-align:center;
}

.hero-profile {
  display: grid;
  gap: 24px;
}

.profile-pic {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--border);
  box-shadow: var(--shadow);
}

@media (min-width: 860px) {
  .hero-profile {
    grid-template-columns: 180px 1fr;
    align-items: center;
  }
}