:root{
  --bg:#071025;
  --panel:#0b1220;
  --muted:#94a3b8;
  --accent:#7c3aed;
  --glass: rgba(255,255,255,0.04);
  --radius:12px;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial;background:linear-gradient(180deg,#071025 0%,#0f1724 100%);color:#e6eef8}
.app{min-height:100vh;display:grid;grid-template-columns:260px 1fr;gap:22px;padding:24px;align-items:start}

/* SIDEBAR */
.sidebar{background:linear-gradient(180deg, rgba(124,58,237,0.08), transparent);backdrop-filter: blur(6px);padding:20px;border-radius:16px;color:var(--muted);box-shadow:0 6px 30px rgba(2,6,23,0.6)}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:18px}
.avatar{width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#06b6d4);display:flex;align-items:center;justify-content:center;font-weight:700;color:white}
.brand h1{font-size:16px;color:#fff}
.subtitle{font-size:12px;color:var(--muted)}
.nav-link{display:block;padding:10px;border-radius:10px;color:var(--muted);text-decoration:none;font-weight:600;margin-bottom:6px}
.nav-link:hover{background:var(--glass);color:#fff}
.nav-link.active{background:linear-gradient(90deg,rgba(124,58,237,0.14),rgba(6,182,212,0.06));color:#fff}
.hint{font-size:13px;color:var(--muted);margin-top:12px}

/* MAIN */
.main{padding:20px}
.main-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:12px}
.title{color:#fff}
.actions{display:flex;gap:10px}
.btn{background:var(--accent);color:#fff;padding:8px 12px;border-radius:10px;border:none;cursor:pointer;font-weight:600}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06)}

/* hero */
.hero{display:flex;gap:20px;align-items:center;padding:18px;background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);border-radius:12px;margin-bottom:18px}
.hero .intro{flex:1}
.hero-photo img{width:120px;height:120px;object-fit:cover;border-radius:12px;border:2px solid rgba(255,255,255,0.03)}
.chip{display:inline-block;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,0.02);color:var(--muted);font-size:13px;margin-right:8px}

/* embed */
.embed{width:100%;height:360px;border:none;margin:12px 0;border-radius:10px}

/* certificates layout */
.cert-list{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px}
.certificate{
  display:flex;
  gap:14px;
  align-items:center;
  width:100%;
  max-width:760px;
  padding:12px;
  border-radius:12px;
  background:linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.01));
  border:1px solid rgba(255,255,255,0.03);
  box-shadow:0 6px 18px rgba(2,6,23,0.55);
}
.certificate-img{width:120px;height:80px;object-fit:cover;border-radius:8px;flex-shrink:0}
.certificate-content h3{margin:0 0 6px 0;font-size:16px}
.certificate-content p{margin:0;color:var(--muted);font-size:13px}
.certificate-content a{color:var(--accent);text-decoration:none;font-weight:600}

/* badges row */
.badges-row{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}
.badges{height:150px;object-fit:contain;background:transparent;padding:6px;border-radius:8px;justify-content: flex-start;}

/* lightbox */
.lightbox{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(2,6,23,0.85);z-index:9999}
.lightbox img{max-width:95%;max-height:85%;border-radius:10px}

/* animations */
.fade-in-up{opacity:0;transform:translateY(8px);animation:fadeUp .45s forwards ease-out}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

/* responsive */
@media (max-width:1000px){
  .app{grid-template-columns:1fr;padding:14px}
  .certificate{max-width:100%}
  .certificate-img{width:110px;height:72px}
}