:root {
      --c-bg:#0d0d0d; 
      --c-bg-grad:#1a1a1a;
      --c-text:#ffffff;
}

.back-button, .back-button:visited {
    color: white;
    text-decoration: none;
}
body {
      margin: 0;
      font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: #111;
    }

    h1 {
      color:var(--c-text);
      font-family:Bebas Neue;
      letter-spacing:1px;
      font-size:40px;
      text-transform:uppercase;
      text-align: center;
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 16px;
      max-width: 1200px;
      margin: 0 auto 4rem;
      padding: 0 20px;
    }

    .gallery-grid a {
      display: block;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s ease;
    }
    .gallery-grid a:hover {
      transform: translateY(-4px);
    }

    .gallery-grid img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    @media (prefers-color-scheme: dark) {
      body { background: linear-gradient(135deg,var(--c-bg),var(--c-bg-grad)); color: black; }
    }

header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--c-bg);
    padding: 10px 20px;
    top: 0;
    position: sticky;
    z-index: 1000;
    height: 73px;
}

.logo img{
    max-width: 150px;
    padding-top: 5px;
}

.logo h1{
    padding: 5px 10px;
}

nav {
    display: flex;
    justify-content: right;
}

.nav-item{
    padding-right: 30px;
}

.interval{
    padding-right: 30px;
}

.interval a{
    color: white;
    text-decoration: none;
    font-size: 18px;
    padding: 5px 10px;
}

.interval a:hover {
    background-color: #333;
    border-radius: 5px;
}

.nav-item a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    padding: 5px 10px;
}