:root{
  --bg: #0b0f17;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.08);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --border: rgba(255,255,255,.12);
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --radius: 16px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  line-height:1.55;
}

.container{
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 18px;
}

/* premium subtle background */
.site-bg{
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 450px at 10% 10%, rgba(99,102,241,.18), transparent 55%),
    radial-gradient(800px 400px at 90% 20%, rgba(34,197,94,.12), transparent 60%),
    radial-gradient(700px 380px at 50% 90%, rgba(236,72,153,.10), transparent 60%);
  filter: blur(0px);
  z-index: -1;
}

/* Topbar */
.topbar{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(11,15,23,.62);
  border-bottom: 1px solid var(--border);
}

.topbar-inner{
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  text-decoration:none;
  color: var(--text);
}

.brand-mark{
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  font-weight: 800;
  letter-spacing: .4px;
  background: linear-gradient(135deg, rgba(99,102,241,.95), rgba(34,197,94,.85));
  box-shadow: 0 10px 30px rgba(99,102,241,.18);
}

.brand-name{
  font-weight: 800;
  letter-spacing: .2px;
}

/* Nav */
.nav{
  display:flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
  border-radius: 999px;
}

.nav a{
  text-decoration:none;
  color: var(--muted);
  padding: 9px 14px;
  border-radius: 999px;
  transition: .18s ease;
  font-weight: 600;
  font-size: 14px;
}

.nav a:hover{
  color: var(--text);
  background: rgba(255,255,255,.06);
}

.nav a.active{
  color: var(--text);
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.10);
}

/* Buttons */
.topbar-cta{
  display:flex;
  gap: 10px;
  align-items:center;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  text-decoration:none;
  font-weight: 700;
  font-size: 14px;
  border: 1px solid transparent;
  transition: .18s ease;
  white-space: nowrap;
}

.btn-ghost{
  color: var(--text);
  background: rgba(255,255,255,.04);
  border-color: var(--border);
}
.btn-ghost:hover{
  background: rgba(255,255,255,.07);
}

.btn-primary{
  color: #0b0f17;
  background: linear-gradient(135deg, rgba(99,102,241,1), rgba(34,197,94,1));
  box-shadow: 0 12px 32px rgba(99,102,241,.20);
}
.btn-primary:hover{
  transform: translateY(-1px);
  box-shadow: 0 16px 46px rgba(99,102,241,.26);
}

/* Footer */
.footer{
  margin-top: 70px;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,.03);
}

.footer-grid{
  padding: 42px 0;
  display:grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 24px;
}

.footer-col h4{
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: .2px;
  text-transform: uppercase;
  color: rgba(255,255,255,.86);
}

.footer-col a{
  display:block;
  color: var(--muted);
  text-decoration:none;
  padding: 6px 0;
  transition: .15s ease;
}
.footer-col a:hover{
  color: var(--text);
  transform: translateX(2px);
}

.footer-brand{
  display:flex;
  align-items:center;
  gap: 10px;
  margin-bottom: 10px;
}

.muted{ color: var(--muted); }
.small{ font-size: 13px; }

.social{
  display:flex;
  gap: 10px;
  margin-top: 14px;
}

.social-btn{
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
  transition: .18s ease;
}
.social-btn:hover{
  background: rgba(255,255,255,.08);
  transform: translateY(-1px);
}
.social-btn svg{
  width: 18px;
  height: 18px;
  fill: rgba(255,255,255,.85);
}

.footer-bottom{
  padding: 16px 0 28px;
  display:flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 980px){
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .nav{ display:none; } /* simplu acum; dacă vrei facem meniu mobil în pasul următor */
}

@media (max-width: 560px){
  .topbar-inner{ height:auto; padding: 14px 0; flex-wrap: wrap; }
  .footer-grid{ grid-template-columns: 1fr; }
  .footer-bottom{ flex-direction: column; }
}