html {
  scroll-padding-top: var(--header-h, 90px);
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #d8e3e3;
  color: #6FC2BB;
  width: 100%;
  padding: 10px 40px;
  box-sizing: border-box;
}
header.is-scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}
header h1 {
  font-size: 22px;
  font-weight: bold;
  color: #6FC2BB;
  z-index: 2;
}
.petsmart {
  font-family: 'Roboto', sans-serif;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2;
}

.logo {
  width: 50px;
  height: auto;
  z-index: 2;
}

nav {
  display: flex;
  gap: 0px;
  z-index: 2;
  position: relative;
}

nav a {
  text-decoration: none;
  color: #6FC2BB;
  font-weight: bold;
  font-family: 'Roboto', sans-serif;
  transition: color 0.3s ease;
  font-weight: bold;
  padding: 10px 30px;
  border-radius: 4px;
  z-index: 2;
}

nav a:hover, nav a.active {
  background: #6FC2BB;
  color: white;
  align-items: center;
  z-index: 2;
}

@media (prefers-reduced-motion: no-preference) {
  nav a {
    transition: color 0.3s ease, background-color 0.3s ease;
  }
}