:root{ --primary:#274cdb; --accent:#7c3aed; }
body{font-family:Poppins,Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.shadow-hover{transition:transform .2s, box-shadow .2s}
.shadow-hover:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(39,76,219,.15)}
.bg-dark{background:#0b1220 !important}
.gradient-bg{position:absolute;inset:0;z-index:0;background:
  radial-gradient(800px 400px at 10% -10%, rgba(39,76,219,.25), transparent 60%),
  radial-gradient(700px 400px at 90% 0%, rgba(124,58,237,.22), transparent 60%),
  radial-gradient(600px 500px at 60% 120%, rgba(14,165,233,.18), transparent 60%);}
section > .container, .container > *{position:relative;z-index:1}
.btn-primary{background-image:linear-gradient(135deg,var(--primary),var(--accent));border:0}
.btn-outline-light{border-color:#cbd5e1;color:#f0f4ff}
.lead.text-light-emphasis{color:#c7d2fe !important}