:root {
    --accent: #00b894;
    --blue: #0984e3;
    --text: #222;
    --bg-overlay: rgba(255,255,255,0.92);
    --max-width: 800px;
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  body {
    font-family: system-ui, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: url('background.webp') center/cover no-repeat fixed;
    margin: 0;
    padding: 0;
  }

  .content-frame {
    background: var(--bg-overlay);
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 3rem 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  }

  h1, h2, h3 {
    color: #111;
  }

  header, main, footer {
    margin-bottom: 2rem;
  }

  header h1 {
    font-size: 2rem;
    margin-bottom: 0.8em;
    text-align: center;
  }

  header p {
    max-width: 700px;
    margin: 0 auto 1.5em;
    text-align: center;
  }

  header ul {
    list-style: none;
    padding: 0;
    margin: 1.5em auto;
    max-width: 600px;
    text-align: left;
  }

  header li {
    margin-bottom: 0.4em;
    position: relative;
    padding-left: 1.2em;
  }

  header li::before {
    content: "✔";
    color: var(--accent);
    position: absolute;
    left: 0;
  }

  .btn {
    display: inline-block;
    margin-top: 1.5em;
    padding: 0.8em 1.6em;
    background-color: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 184, 148, 0.25);
  }

  main h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }

  main h3 {
    font-size: 1.1rem;
    margin-top: 2rem;
    margin-bottom: 0.5rem;
  }

  section { margin-bottom: 3rem; }
  section p { margin-bottom: 1rem; }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
  }

  .header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
  
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .logo img {
    height: clamp(40px, 6vw, 60px);
    width: auto;
    display: block;
  }
    
  .main-nav {
    display: flex;
    gap: 1.5rem;
  }

  .main-nav a {
    text-decoration: none;
    font-size: 0.95rem;
    color: #222;
    opacity: 0.85;
  }

  .main-nav a:hover {
    opacity: 1;
  }
  
  .main-nav .cta-link {
    font-weight: 500;
  }
  
  .hp {
    display: none;
  }
  
  .contact-form {
    max-width: 500px;
    margin: 3rem auto;
    display: grid;
    gap: 1.5rem;
  }

  .contact-form label {
    display: grid;
    gap: 0.5rem;
  }

  .contact-form input,
  .contact-form textarea {
    padding: 0.6rem;
    font: inherit;
    border: 1px solid #ccc;
    border-radius: 4px;
  }

  .contact-form button {   
    margin-top: 1rem;
    padding: 0.6rem;
    border: 1px solid #ccc;
    border-radius: 10px;
    
  }
  
  .service-list {
    list-style: none;
    padding-left: 0;
    margin-top: 1.2rem;
  }

  .service-list li {
    position: relative;
    padding-left: 1.4rem;
    margin-bottom: 0.6rem;
  }

  .service-list li::before {
    content: "–";
    position: absolute;
    left: 0;
    opacity: 0.6;
  }

  footer {
    text-align: center;
    font-size: 0.9em;
    color: #666;
    background: rgba(255,255,255,0.85);
    border-radius: 10px;
    padding: 20px 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  }

  footer a {
    color: inherit;
    text-decoration: none;
  }

  footer a:hover {
    text-decoration: underline;
  }

  /* sanftes Einblenden beim Laden */
  [data-fade] {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s forwards;
  }

  @keyframes fadeIn {
    to { opacity: 1; transform: none; }
  }

  [data-delay="1"] { animation-delay: 0.2s; }
  [data-delay="2"] { animation-delay: 0.4s; }
  [data-delay="3"] { animation-delay: 0.6s; }
  [data-delay="4"] { animation-delay: 0.8s; }

  /* 🌙 Dark Mode */
  @media (prefers-color-scheme: dark) {
    body {
      color: #eee;
      background: url('background.webp') center/cover no-repeat fixed, #111;
    }

    .content-frame {
      background: rgba(20, 20, 20, 0.9);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    }

    h1, h2, h3 {
      color: #fff;
    }

    a {
      color: #81ecec;
    }

    .btn {
      background-color: #00cec9;
      color: #111;
    }

    .btn:hover {
      box-shadow: 0 6px 12px rgba(0, 206, 201, 0.25);
    }

    footer {
      background: rgba(25,25,25,0.9);
      color: #ccc;
    }

    footer a {
      color: #81ecec;
    }
    
    .site-header {
      background: rgba(15, 15, 15, 0.85);
    }

    .main-nav a {
      color: #f0f0f0;
    }
  }
  
  .subtle {
    font-size: 0.9rem;
    opacity: 0.75;
    margin-top: 1.5rem;
  }

  .backlink {
    margin-top: 2rem;
  }

  .backlink a {
    text-decoration: none;
    opacity: 0.8;
  }

  .backlink a:hover {
    opacity: 1;
  }

  @media (max-width: 600px) {
    .main-nav {
      gap: 1rem;
      font-size: 0.9rem;
    }
  }