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

body {
  background: #0f0f0f;
  color: #ffffff;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: white;
}

header {
  background: #000;
  padding: 20px 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  color: #e63946;
}

nav a {
  margin-left: 20px;
  font-weight: 500;
}

.hero {
  height: 90vh;
  background: linear-gradient(rgba(0,0,0,.7), rgba(0,0,0,.7)),
  url("https://images.unsplash.com/photo-1534438327276-14e5300c3a48") center/cover;
  display: flex;
  align-items: center;
  padding: 0 60px;
}

.hero h2 {
  font-size: 48px;
}

.hero p {
  margin: 20px 0;
  max-width: 500px;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  background: #e63946;
  border-radius: 5px;
  font-weight: bold;
}

.section {
  padding: 60px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: #1c1c1c;
  padding: 25px;
  border-radius: 10px;
}

.card h3 {
  margin-bottom: 10px;
  color: #e63946;
}

footer {
  background: #000;
  text-align: center;
  padding: 20px;
  margin-top: 50px;
}

.whatsapp {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #25d366;
  color: white;
  padding: 15px 18px;
  border-radius: 50%;
  font-size: 22px;
}

@media(max-width: 768px) {
  header {
    flex-direction: column;
  }

  .hero h2 {
    font-size: 32px;
  }

  .section {
    padding: 30px;
  }
}