:root{
  --deep:#020617;
  --navy:#06152b;
  --royal:#1f4ed8;
  --sky:#38bdf8;
  --gold:#f6d365;
  --white:#ffffff;
  --silver:#dbeafe;
  --glass:rgba(255,255,255,0.08);
}

/* RESET */
*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family:Arial, Helvetica, sans-serif;
  background:#f8fafc;
}

/* HEADER */
header{
  position:sticky;
  top:0;
  z-index:999;
  backdrop-filter:blur(14px);
  background:
    linear-gradient(135deg,
    rgba(2,6,23,0.92),
    rgba(6,21,43,0.94),
    rgba(30,58,138,0.90));
  border-bottom:1px solid rgba(255,255,255,0.07);
  box-shadow:0 12px 30px rgba(0,0,0,0.25);
}

/* glowing line */
header::after{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,
    transparent,
    var(--sky),
    var(--gold),
    transparent);
}

/* WRAP */
.nav-wrap{
  max-width:1400px;
  margin:auto;
  padding:0 28px;
  height:84px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

/* LOGO */
.logo{
  display:flex;
  align-items:center;
  gap:14px;
  text-decoration:none;
}

.logo-icon{
  width:52px;
  height:52px;
  border-radius:16px;
  background:linear-gradient(135deg,var(--sky),var(--royal),var(--gold));
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:24px;
  font-weight:900;
  box-shadow:0 10px 25px rgba(56,189,248,0.25);
}

.logo-text{
  display:flex;
  flex-direction:column;
  line-height:1.05;
}

.logo-text strong{
  font-size:24px;
  color:#fff;
  letter-spacing:1px;
}

.logo-text span{
  color:var(--silver);
  font-size:12px;
  letter-spacing:1.4px;
  text-transform:uppercase;
}

/* DESKTOP MENU */
nav ul{
  list-style:none;
  display:flex;
  align-items:center;
  gap:10px;
}

nav a{
  color:#fff;
  text-decoration:none;
  padding:12px 16px;
  border-radius:14px;
  font-size:15px;
  font-weight:600;
  transition:0.30s ease;
}

nav a:hover{
  background:var(--glass);
  transform:translateY(-2px);
}

/* CTA */
.portal-btn{
  margin-left:10px;
  padding:13px 20px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--sky),var(--royal));
  color:#fff !important;
  box-shadow:0 12px 25px rgba(31,78,216,0.35);
}

.portal-btn:hover{
  transform:translateY(-3px) scale(1.03);
}

/* MOBILE BUTTON */
.menu-btn{
  display:none;
  background:none;
  border:none;
  color:#fff;
  font-size:30px;
  cursor:pointer;
}

/* MOBILE MENU */
.mobile-menu{
  display:none;
  padding:15px 20px 25px;
  border-top:1px solid rgba(255,255,255,0.06);
}

.mobile-menu a{
  display:block;
  color:#fff;
  text-decoration:none;
  padding:14px 16px;
  margin-top:10px;
  border-radius:14px;
  background:rgba(255,255,255,0.05);
  font-weight:600;
}

.mobile-menu .portal-btn-mobile{
  background:linear-gradient(135deg,var(--sky),var(--royal));
}

/* RESPONSIVE */
@media(max-width:980px){

  nav{
    display:none;
  }

  .menu-btn{
    display:block;
  }

  .nav-wrap{
    height:76px;
    padding:0 18px;
  }

  .logo-text strong{
    font-size:21px;
  }

  .logo-icon{
    width:46px;
    height:46px;
    font-size:20px;
  }
}