body {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  background: #1e1e1e;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 10;
  padding: 0.5rem 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  height: 60px;
  align-items: center;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background: linear-gradient(to bottom, #444, #222);
  color: white;
  border: 1px solid #000;
  border-radius: 6px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
  box-shadow: inset 0 0 4px #000;
  line-height: 1;
  height: 40px;
}

.main-nav a:hover {
  background: linear-gradient(to bottom, #555, #333);
}

.main-footer {
  padding: 1rem;
  background-color: #222;
  color: #fff;
  text-align: center;
  position: fixed;
  bottom: 0;
  width: 100%;
}

.main-content {
  flex: 1 0 auto;
  padding-top: 70px;
  padding-bottom: 70px;
}