body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #ffffff;
  color: #111;
}

.nav {
  display: flex;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid #eee;
}

.nav a {
  color: #111;
  text-decoration: none;
  margin-left: 14px;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}

.hero h1 { margin: 0 0 10px; }
.hero p { color: #444; }

.btn {
  display: inline-block;
  padding: 10px 16px;
  background: #111;
  color: #fff;
  border-radius: 10px;
  text-decoration: none;
  margin-right: 10px;
}

.btn.secondary {
  background: transparent;
  color: #111;
  border: 1px solid #ddd;
}

.card {
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.tile {
  border: 1px solid #eee;
  border-radius: 12px;
  overflow: hidden;
}

.tile img, .tile video {
  width: 100%;
  display: block;
}

.tile p {
  margin: 0;
  padding: 10px 12px;
  color: #444;
}