:root{
  --bg:#070b14;
  --bg2:#0b1220;
  --card:rgba(17,27,51,.78);
  --border:rgba(120,150,255,.18);
  --text:#eaf0ff;
  --muted:#b7c7ff;
  --muted2:#8aa7ff;
  --accent:#2d6bff;
  --accent2:#19c37d;
  --shadow: 0 18px 50px rgba(0,0,0,.45);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 450px at 20% 10%, rgba(45,107,255,.25), transparent 60%),
    radial-gradient(700px 380px at 85% 20%, rgba(25,195,125,.14), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}

a{color:inherit;text-decoration:none}
.container{max-width:1040px;margin:0 auto;padding:26px 18px}

.nav{
  position:sticky; top:0; z-index:10;
  display:flex; align-items:center; justify-content:space-between;
  gap:14px;
  padding:14px 16px;
  margin:10px 0 18px;
  border:1px solid var(--border);
  border-radius:calc(var(--radius) + 8px);
  background: rgba(10,16,31,.55);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}

.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:850;
  letter-spacing:.2px;
}
.brand .dot{
  width:10px;height:10px;border-radius:999px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  box-shadow: 0 0 0 6px rgba(45,107,255,.12);
}

.menu{display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end}
.menu a{
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--muted);
  transition: transform .08s ease, background .15s ease, border-color .15s ease;
}
.menu a:hover{transform: translateY(-1px); background: rgba(45,107,255,.10)}
.menu a.active{
  background: linear-gradient(135deg, rgba(45,107,255,.95), rgba(45,107,255,.65));
  border-color: rgba(45,107,255,.75);
  color:#fff;
}

.hero{
  padding:26px;
  border:1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(17,27,51,.82), rgba(17,27,51,.58));
  box-shadow: var(--shadow);
}

h1{margin:0 0 10px; font-size: clamp(28px, 3.2vw, 40px); line-height:1.1}
h2{margin:0 0 8px; font-size: 18px}
p{margin:10px 0 0; line-height:1.7; color:var(--muted)}
.small{margin-top:14px; font-size:13px; color:var(--muted2)}

.row{display:flex; gap:12px; flex-wrap:wrap; align-items:center; margin-top:16px}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  background: linear-gradient(135deg, var(--accent), rgba(45,107,255,.75));
  color:#fff;
  padding:12px 14px;
  border-radius: 14px;
  font-weight:850;
  border:1px solid rgba(45,107,255,.65);
  box-shadow: 0 16px 35px rgba(45,107,255,.18);
  transition: transform .08s ease, filter .15s ease;
}
.btn:hover{transform: translateY(-1px); filter: brightness(1.05)}

.btn.secondary{
  background: rgba(255,255,255,.06);
  border:1px solid var(--border);
  color:var(--muted);
  box-shadow:none;
}

.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:14px;
  margin-top:14px;
}

.card{
  grid-column: span 4;
  padding:18px;
  border:1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(17,27,51,.55);
  box-shadow: 0 10px 25px rgba(0,0,0,.22);
}

.card p{margin-top:8px}

@media (max-width: 960px){
  .card{grid-column: span 6}
}
@media (max-width: 640px){
  .nav{flex-direction:column; align-items:stretch}
  .menu{justify-content:flex-start}
  .card{grid-column: span 12}
}

/* Form */
label{display:block;margin:12px 0 6px;color:var(--muted)}
.input{
  width:100%;
  padding:12px 12px;
  border-radius: 14px;
  border:1px solid var(--border);
  background: rgba(10,16,31,.55);
  color:var(--text);
  outline:none;
}
.input:focus{border-color: rgba(45,107,255,.75); box-shadow: 0 0 0 6px rgba(45,107,255,.12)}