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

        :root {
            --background-color: #f5f5f5;
            --text-color: #333;
            --highlight-color: #77d6ff;
            --dark-bg: #ffffff;
            --border-color: #e0e0e0;
            --success-color: #4caf50;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
            background-color: var(--background-color);
            color: var(--text-color);
            line-height: 1.6;
        }

        /* Navigation */
        /* nav {
            position: fixed;
            top: 0;
            width: 100%;
            background-color: var(--dark-bg);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            z-index: 1000;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
        }

        .nav-logo img {
            height: 60px;
            width: auto;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            color: var(--text-color);
            text-decoration: none;
            font-size: 1.2rem;
            transition: color 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--highlight-color);
        }

        @media (max-width: 1111px) {
            .nav-links {
                gap: 1rem;
                font-size: 0.9rem;
            }
            
            .nav-container {
                padding: 1rem;
            }
            .hero {
                padding: 6rem 12rem;
            }
        } */

        /* Hero Section */
        .hero {
            margin-top: 70px;
            padding: 6rem 10vw;
            background: linear-gradient(135deg, var(--dark-bg) 0%, #fafafa 100%);
            display: flex;
            align-items: center;
            gap: 4rem;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            flex: 1;
            text-align: left;
            z-index: 10;
        }

        .hero-portrait {
            flex: 1;
            display: flex;
            justify-content: flex-end;
            align-items: flex-end;
            position: relative;
            min-height: 500px;
        }

        .hero-portrait img {
            margin:auto;
            max-width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: 50%;
            aspect-ratio: 1;
            max-width: 400px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        }

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-color);
        }

        .hero h1 .highlight {
            color: var(--highlight-color);
        }

        .hero p {
            font-size: 1.1rem;
            color: #666;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .cta-primary {
            display: inline-block;
            background-color: var(--highlight-color);
            color: var(--dark-bg);
            padding: 1rem 2.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            border: 2px solid var(--highlight-color);
            cursor: pointer;
        }

        .cta-primary:hover {
            background-color: transparent;
            color: var(--highlight-color);
            box-shadow: 0 8px 24px rgba(119, 214, 255, 0.3);
        }

        @media (max-width: 1111px) {
            .hero {
                padding: 4rem 1.5rem;
                margin-top: 60px;
                flex-direction: column;
                gap: 2rem;
                text-align: center;
            }

            .hero-content {
                text-align: center;
            }

            .hero-portrait {
                min-height: 350px;
                justify-content: center;
                border-radius:100%;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero p {
                font-size: 1rem;
            }
        }

        /* About Section */
        .about {
            padding: 6rem 2rem;
            background-color: var(--dark-bg);
            border-top: 1px solid var(--border-color);
        }

        .about-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .about h2 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: var(--text-color);
        }

        .about p {
            font-size: 1.1rem;
            color: #666;
            margin-bottom: 1.5rem;
            line-height: 1.8;
        }

        /* Services Section */
        .services {
            padding: 6rem 2rem;
            background-color: var(--background-color);
        }

        .services-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .services h2 {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 3rem;
            color: var(--text-color);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .service-card > p {
          text-align: left;
        }
        .service-card {
            background-color: var(--dark-bg);
            padding: 2rem;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .service-card:hover {
            box-shadow: 0 8px 24px rgba(119, 214, 255, 0.15);
            border-color: var(--highlight-color);
            transform: translateY(-4px);
        }

        .service-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--text-color);
        }

        .service-card p {
            color: #666;
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .service-list {
            list-style: none;
            margin-bottom: 1.5rem;
        }

        .service-list li {
            color: #666;
            padding: 0.5rem 0;
            display: flex;
            align-items: center;
            text-align: left;
        }

        .service-list li:before {
            content: "✓";
            color: var(--highlight-color);
            font-weight: bold;
            margin-right: 0.75rem;
        }

        .cta-secondary {
            display: inline-block;
            background-color: var(--dark-bg);
            color: var(--highlight-color);
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            border: 2px solid var(--highlight-color);
            transition: all 0.3s ease;
            cursor: pointer;
            font-size: 0.95rem;
        }

        .cta-secondary:hover {
            background-color: var(--highlight-color);
            color: var(--dark-bg);
        }

        /* CTA Section */
        .cta-section {
            margin-top: 70px;
            padding: 4rem 2rem;
            background-color: var(--dark-bg);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }

        .cta-section-container {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: var(--text-color);
        }

        .cta-section p {
            font-size: 1.1rem;
            color: #666;
            margin-bottom: 2rem;
        }

        /* Footer / Imprint */
        footer {
            background-color: var(--dark-bg);
            border-top: 1px solid var(--border-color);
            padding: 4rem 2rem 2rem;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }

        .footer-section h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: var(--text-color);
        }

        .footer-section p, .footer-section a {
            color: #666;
            text-decoration: none;
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .footer-section a:hover {
            color: var(--highlight-color);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 2rem;
            text-align: center;
            color: #999;
            font-size: 0.9rem;
        }

        .footer-bottom p {
            margin: 0.5rem 0;
        }

        /* Utility Classes */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        @media (max-width: 1111px) {
            .services-grid {
                grid-template-columns: 1fr;
            }

            .footer-content {
                grid-template-columns: 1fr;
            }
        }


/* Base styles (mobile-first: up to 600px) */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  font-size:large;
  color: #333;
  --background_header: white;
  --color_header: rgb(61, 61, 61);
  --background_content: rgb(227, 213, 201);
  --color_content: rgb(61, 61, 61);
  --header-v-padding: 0.5rem;
  --highlight-color: #77d6ff;
  --transition-dur: 500ms;
  background-color: var(--background_header);
  text-align:center;
}

header {
  position: fixed;
  left: 0px;
  top:0px;
  width: 100%;
  padding: 1.2rem 0rem;
  text-align: center;
  background: #fff;
  box-shadow: 0 0.5em 1.5em rgba(0,0,0,0.2);
  z-index:9999;
}

header h1 {
  margin: 0;
  font-size: 1.4rem;
}

nav {
  text-align: center;
}

nav a {
  display: inline-block;
  margin: 0.3rem 0.5rem;
  font-size: 0.85rem;
}

.container {
  padding: 1.5rem 1rem;
  padding-top:9rem;
  margin:auto;
}

.services {
  grid-template-columns: 1fr; /* single column on small screens */
}

.footer-item {
  display: block;
  margin: 0.5rem 0;
}

.menu-toggle {
  display: none;
  font-size: 1.8rem;
  background: none;
  border: none;
  cursor: pointer;
}
p{
  text-align:justify;
}
#menu_inline{
  width:100%;
  display:none;
}
#menu_burger{
  width:100%;
  display:inline;
}
details>summary {
  list-style-type: none;
  font-size: x-large;
  margin-bottom: -10px;
}
nav{
  text-align:center;
  position:absolute;
  bottom:calc(-1*var(--header-v-padding));
  left:0px;
  display:inline-block;
  width:100%;
  border-radius:15px;
  list-style-type: none;
}
nav>ul{
  display: inline-flex;
  flex-grow: 1;
  width: 100%;
  background-color:var(--background_header);
  border: 1px solid black;
  color: white;
  text-transform: uppercase;
  margin:0px;
  box-sizing: border-box;
  padding:0rem 0rem;
  bottom: 8px;
}
nav>ul>li>a:link {
  color:black;
  font-weight:bold;
  text-decoration: none;
}

nav>ul>li>a:visited {
  color:black;
  font-weight:bold;
  text-decoration: none;
}

nav>ul>li>a:hover {
  color:black;
  font-weight:bold;
  text-decoration: underline;
}

nav>ul>li>a:active {
  color:black;
  font-weight:bold;
  text-decoration: none;
}
details{
  text-align:right;
  position:absolute;
  right:0px;
  top:25%;
  display:inline-block;
  padding-right:4em;
  border-radius:15px;
  list-style-type: none;
}
details>ul{
  display: inline-flex;
  flex-grow: 1;
  width: 100vw;
  background-color:var(--background_header);
  padding-right: 5px;
  border: 1px solid black;
  color: white;
  padding-right: 20px;
  text-transform: uppercase;
  position:relative;
  left:4em;
}
details>ul>li>a:link {
  color:black;
  font-weight:bold;
  text-decoration: none;
}

details>ul>li>a:visited {
  color:black;
  font-weight:bold;
  text-decoration: none;
}

/* details>ul>li>a:hover {
  font-weight:bold;
  text-decoration: underline;
} */

details>ul>li>a:active {
  color:black;
  font-weight:bold;
  text-decoration: none;
}

.menu-item{
  user-select: none;
  list-style-type: none;
  flex-grow:1;
  text-align: center;
  border-radius:1em;
  color: black;
}
li.menu-item:hover{
  color: var(--highlight-color);
  -webkit-transition: color var(--transition-dur) linear;
  -ms-transition: color var(--transition-dur) linear;
  transition: color var(--transition-dur) linear;
}

cite{
  font-family:serif;
  font-size:x-large;
  display:inline-block;
  max-width:85%;
  text-align:left;
  font-weight: bold;
  margin:5rem;
}
cite::after{
  content: "\"";
}
cite::before{
  content: "\"";
}
    .card {
      border: 1px solid #ddd;
      padding: 1rem;
      border-radius: 8px;
      background: #f9f9f9;
      margin:2rem;
    }

    .cta {
      background: #0f172a;
      color: white;
      padding: 2rem;
      text-align: center;
      border-radius: 8px;
    }
    .cta>p{
      text-align:center;
    }

      .btn {
      display: inline-block;
      margin-top: 1rem;
      padding: 0.6rem 1.2rem;
      background: #3b82f6;
      color: white;
      text-decoration: none;
      border-radius: 5px;
    }

    .btn:hover {
      background: var(--highlight-color);
    }
    .portrait{
      border-radius: 100%;
      width:10rem;
      margin:auto;
    }

@media only screen and (max-width: 1111px) {
  header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    padding: 0.8rem 1rem;
    border-radius:0px;
  }
  header h1 {
    display: none; /* optional: hide title if logo replaces it */
  }

  header img {
    max-height: 40px;
    width: auto;
  }
  .container{
    padding-top: 4rem;
  }

  nav a {
    margin: 0 0.4rem;
    font-size: 0.8rem;
  }
}

/* Small devices (600px and up) */
@media only screen and (min-width: 600px) {

  .container {
  }

  .services {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* Medium devices (1111px and up) */
@media only screen and (min-width: 1111px) {
  .section{
    scroll-margin-top: 80px; /* match your header height */
  }
  #menu_inline{
    display:inline-block
  }
  #menu_burger{
    display:none
  }
  header h1 {
    font-size: 1.8rem;
  }

  nav a {
    font-size: 0.95rem;
  }

  .container {
    max-width: 720px;
  }

  .services {
    grid-template-columns: repeat(2, minmax(250px, 1fr));
  }
}


/* Large devices (992px and up) */
@media only screen and (min-width: 1111px) {
  nav>ul{
    padding: 0rem 20%;
    text-align: center;
    box-sizing: border-box;
    width:100vw;
    left:0px;
  }
  header h1 {
    font-size: 2rem;
  }

  .container {
    max-width: 960px;
  }

  .services {
    grid-template-columns: repeat(3, 1fr);
  }
}


/* Extra large devices (1200px and up) */
@media only screen and (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }

  .services {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}