body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

.nav {
  display: flex;
  justify-content: space-between;
  padding: 20px;
  background: #111827;
}

.logo {
  font-weight: bold;
  font-size: 20px;
}

a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
}

/* BUTTONS */
.btn {
  padding: 10px 15px;
  background: #334155;
  border-radius: 5px;
  display: inline-block;
}

.primary {
  background: #2563eb;
}

/* HERO (FULL BACKGROUND VERSION) */
.hero {
  position: relative;
  height: 80vh;
  background: url("../images/hero.png") center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
}

.hero-content {
  position: relative;
  max-width: 900px;
  padding: 20px;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  opacity: 0.9;
}

/* GRIDS */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.card {
  background: #1f2937;
  padding: 20px;
  border-radius: 8px;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 40px;
}