:root{
  --blue:#3d65ae;
  --green:#56b48c;
  --yellow:#ffea64;

  --bg:#0f1115;
  --card:#ffffff;
  --text:#ffffff;
  --text-dark:#000000;
  --muted:rgba(255,255,255,.75);

  --radius:16px;
  --max:980px;
  --shadow:0 10px 30px rgba(0,0,0,.25);

  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  font-family:var(--font);
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(61,101,174,.35), transparent 55%),
    radial-gradient(900px 500px at 85% 0%, rgba(255,234,100,.25), transparent 60%),
    #0f1115;
  color:var(--text);
  line-height:1.55;
}

.container{
  max-width:var(--max);
  margin:0 auto;
  padding:0 18px;
}

/* Header */
.header{
  padding:28px 0 14px;
  border-bottom:1px solid rgba(255,255,255,.15);
}

.header h1{
  margin:0;
  font-size:1.6rem;
  letter-spacing:.2px;
}

.subtitle{
  margin:6px 0 0;
  color:var(--muted);
}

/* Hero */
.hero{
  padding:32px 0 18px;
}

.tagline{
  margin:0 0 18px;
  max-width:75ch;
  font-size:1.05rem;
  color:var(--muted);
}

.meta{
  margin:14px 0 0;
  font-size:.95rem;
  color:var(--muted);
}

/* Titles */
h2{
  margin:34px 0 14px;
  font-size:1.3rem;
}

h3{
  margin:4px 0 10px;
}

/* Grid & cards */
.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}

.card{
  background:var(--card);
  color:var(--text-dark);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
  border-top:4px solid var(--blue);
}

.card:nth-child(2){
  border-top-color:var(--green);
}

.card:nth-child(3){
  border-top-color:var(--yellow);
}

.card ul{
  margin:0;
  padding-left:18px;
  color:#333;
}

/* Lists */
ol{
  margin:0;
  padding-left:18px;
  color:var(--muted);
}

/* CTA */
.cta{
  display:inline-block;
  padding:13px 18px;
  border-radius:14px;
  background:var(--green);
  color:#000;
  font-weight:700;
  text-decoration:none;
}

.cta:hover{
  opacity:.95;
}

.cta-final{
  margin:28px 0 46px;
}

/* Footer */
.footer{
  border-top:1px solid rgba(255,255,255,.15);
  padding:20px 0;
  background:rgba(0,0,0,.2);
}

.footer p{
  margin:0;
  text-align:center;
  font-size:.92rem;
  color:var(--muted);
}

/* Responsive */
@media (max-width:920px){
  .grid{
    grid-template-columns:1fr;
  }
}
/* NAV */
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}

.brand h1{ margin:0; }

.nav{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}

.nav a{
  color:var(--muted);
  text-decoration:none;
  padding:10px 10px;
  border-radius:12px;
}

.nav a:hover{
  background:rgba(255,255,255,.10);
  color:var(--text);
}

.nav a.active{
  color:var(--text);
  border:1px solid rgba(255,255,255,.20);
}

.nav-cta{
  background:var(--yellow);
  color:#000 !important;
  font-weight:700;
}

/* Responsive nav */
@media (max-width: 920px){
  .header-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .nav{
    width:100%;
  }
}