:root{
  --blue:#0B3C5D;
  --purple:#5B2D8B;
  --accent:#1FA971;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:Inter,system-ui;
  background:#F8FAFC;
  color:#020617;
  line-height:1.7;
}

/* HEADER */
.site-header{
  position:fixed;
  top:0;
  width:100%;
  background:rgba(255,255,255,.8);
  backdrop-filter:blur(14px);
  box-shadow:0 20px 60px rgba(0,0,0,.15);
  z-index:1000;
}

.nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 48px;
}

.nav img{width:42px}

/* HERO */
.hero{
  min-height:100vh;
  background:linear-gradient(135deg,var(--blue),var(--purple));
  display:flex;
  justify-content:center;
  align-items:center;
  color:#fff;
}

.hero-inner{
  text-align:center;
  max-width:900px;
}

.hero h1{
  font-size:clamp(44px,6vw,78px);
  font-weight:800;
}

.btn{
  display:inline-block;
  margin-top:32px;
  padding:18px 44px;
  border-radius:999px;
  background:var(--accent);
  color:#02140C;
  font-weight:700;
  text-decoration:none;
  box-shadow:0 16px 40px rgba(31,169,113,.6);
  transition:.5s cubic-bezier(.2,.8,.2,1);
}
.btn:hover{
  transform:translateY(-6px);
}

/* CARD */
.card{
  background:#fff;
  padding:36px;
  border-radius:24px;
  box-shadow:0 30px 80px rgba(0,0,0,.2);
  margin:32px auto;
  max-width:800px;
}

/* ANIMATION */
.reveal{
  opacity:0;
  transform:translateY(60px);
  transition:1.2s cubic-bezier(.2,.8,.2,1);
}
.reveal.show{
  opacity:1;
  transform:none;
}