*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family: Arial, sans-serif;
}

body{
  background:#0f172a;
  color:white;
}

/* NAVBAR */
.navbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 40px;
  background:rgba(0,0,0,0.4);
  position:fixed;
  width:100%;
  top:0;
  z-index:10;
}

.logo{
  font-weight:bold;
  font-size:1.3rem;
  color:#38bdf8;
}

nav a{
  margin-left:20px;
  text-decoration:none;
  color:white;
  transition:0.3s;
}

nav a:hover{
  color:#38bdf8;
}

/* HERO */
.hero{
  height:100vh;
  background:linear-gradient(135deg,#0ea5e9,#6366f1);
  display:flex;
  justify-content:center;
  align-items:center;
  text-align:center;
  position:relative;
}

.overlay{
  position:absolute;
  width:100%;
  height:100%;
  background:rgba(0,0,0,0.35);
}

.hero-content{
  position:relative;
  z-index:2;
}

.hero h1{
  font-size:3rem;
  margin-bottom:15px;
}

.hero p{
  font-size:1.2rem;
  opacity:0.9;
  margin-bottom:25px;
}

.btn{
  display:inline-block;
  padding:12px 25px;
  background:#38bdf8;
  color:white;
  text-decoration:none;
  border-radius:30px;
  transition:0.3s;
}

.btn:hover{
  background:#0ea5e9;
}

/* CARDS */
.cards{
  display:flex;
  gap:20px;
  justify-content:center;
  padding:60px 20px;
  flex-wrap:wrap;
  background:#111827;
}

.card{
  background:#1f2937;
  padding:25px;
  border-radius:15px;
  width:260px;
  text-align:center;
  transition:0.3s;
}

.card:hover{
  transform:translateY(-5px);
  background:#273449;
}

.card h3{
  margin-bottom:10px;
  color:#38bdf8;
}

/* FOOTER */
footer{
  text-align:center;
  padding:20px;
  background:#0b1120;
  color:#94a3b8;
}
.whatsapp{
  position:fixed;
  bottom:20px;
  right:20px;
  background:#25D366;
  color:white;
  width:55px;
  height:55px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:28px;
  text-decoration:none;
  box-shadow:0 5px 15px rgba(0,0,0,0.3);
  transition:0.3s;
}

.whatsapp:hover{
  transform:scale(1.1);
}
font-family: 'Poppins', sans-serif;
.hero-content{
  animation:fadeUp 1s ease;
}

@keyframes fadeUp{
  from{
    opacity:0;
    transform:translateY(20px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}