/* Header/banner */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: #1f2833;
  color: #c5c6c7;
}

.logo a {
  font-size: 1.5rem;
  font-weight: bold;
  color: #66fcf1;
}

.site-nav ul {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a:focus {
  color: #66fcf1;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: #66fcf1;
  transition: width 0.2s;
}

.site-nav a:hover::after,
.site-nav a:focus::after {
  width: 100%;
}

/* Hero */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: #0b0c10;
  color: #66fcf1;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.125rem;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.875rem;
  background: #1f2833;
  color: #c5c6c7;
}