:root {
            --primary-color: #1a365d;
            --secondary-color: #2d3748;
            --accent-color: #d69e2e;
            --light-color: #f7fafc;
            --dark-color: #2d3748;
            --success-color: #38a169;
            --font-main: 'Helvetica Neue', Arial, sans-serif;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: var(--font-main);
            line-height: 1.6;
            color: var(--dark-color);
            background-color: var(--light-color);
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* Header Styles */
        header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 1rem 0;
            position: relative;
            overflow: hidden;
        }
        
        .header-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 1rem 0;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
        }
        
        .logo-icon {
            margin-right: 10px;
            color: var(--accent-color);
        }
        
        .header-tagline {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-bottom: 1rem;
        }
        
        /* Navigation */
        nav {
            background-color: var(--secondary-color);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.8rem 0;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            width: 100%;
            justify-content: space-around;
        }
        
        .nav-links li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: background-color 0.3s;
        }
        
        .nav-links li a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(26, 54, 93, 0.8), rgba(45, 55, 72, 0.9)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%231a365d"/><path d="M0,0 L100,100 M100,0 L0,100" stroke="%23d69e2e" stroke-width="1"/></svg>');
            background-size: cover;
            color: white;
            padding: 3rem 0;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 2.2rem;
            margin-bottom: 1rem;
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        
        .cta-button {
            display: inline-block;
            background-color: var(--accent-color);
            color: var(--primary-color);
            padding: 0.8rem 2rem;
            border-radius: 4px;
            text-decoration: none;
            font-weight: bold;
            transition: all 0.3s;
        }
        
        .cta-button:hover {
            background-color: #ecc94b;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }
        
        /* Section Styles */
        section {
            padding: 3rem 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 2rem;
            color: var(--primary-color);
            position: relative;
        }
        
        .section-title:after {
            content: '';
            display: block;
            width: 80px;
            height: 3px;
            background-color: var(--accent-color);
            margin: 0.5rem auto;
        }
        
        /* Profile Section */
        .profile {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            padding: 2rem;
            margin-bottom: 2rem;
        }
        
        .profile-header {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 2rem;
        }
        
        .profile-image {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background-color: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            border: 4px solid var(--accent-color);
        }
        
        .profile-image span {
            font-size: 3rem;
            color: var(--secondary-color);
        }
        
        .profile-name {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .profile-title {
            color: var(--secondary-color);
            font-style: italic;
        }
        
        .profile-content {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        
        @media (min-width: 768px) {
            .profile-content {
                grid-template-columns: 1fr 1fr;
            }
        }
        
        .profile-item h3 {
            color: var(--primary-color);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
        }
        
        .profile-item h3 i {
            margin-right: 10px;
            color: var(--accent-color);
        }
        
        /* Expertise Section */
        .expertise-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        
        @media (min-width: 768px) {
            .expertise-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (min-width: 992px) {
            .expertise-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        .expertise-card {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            padding: 1.5rem;
            transition: transform 0.3s;
        }
        
        .expertise-card:hover {
            transform: translateY(-5px);
        }
        
        .expertise-icon {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }
        
        .expertise-card h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        
        /* German Elements */
        .german-flag {
            display: inline-block;
            width: 20px;
            height: 12px;
            background: linear-gradient(to bottom, 
                black 0%, black 33%, 
                red 33%, red 66%, 
                gold 66%, gold 100%);
            margin-right: 8px;
            vertical-align: middle;
        }
        
        .german-element {
            border-left: 0px solid var(--accent-color);
            padding-left: 1rem;
            margin: 1.5rem 0;
            font-style: italic;
        }
        
        /* Community Section */
        .community {
            background-color: var(--primary-color);
            color: white;
            text-align: center;
        }
        
        .community .section-title {
            color: white;
        }
        
        .community .section-title:after {
            background-color: var(--accent-color);
        }
        
        .community-content {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .community-features {
            list-style: none;
            margin-bottom: 2rem;
        }
        
        .community-features li {
            margin-bottom: 1rem;
            display: flex;
            align-items: flex-start;
            justify-content: center;
        }
        
        .community-features li i {
            color: var(--accent-color);
            margin-right: 10px;
            margin-top: 5px;
        }
        
        /* Footer */
        footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 2rem 0;
            text-align: center;
        }
        
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .footer-links {
            display: flex;
            list-style: none;
            margin: 1.5rem 0;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .footer-links li {
            margin: 0 1rem;
        }
        
        .footer-links a {
            color: white;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: var(--accent-color);
            text-decoration: underline;
        }
        
        .copyright {
            margin-top: 1rem;
            opacity: 0.8;
            font-size: 0.9rem;
        }
        
        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 1000;
            overflow-y: auto;
        }
        
        .modal-content {
            background-color: white;
            margin: 5% auto;
            padding: 2rem;
            border-radius: 8px;
            width: 90%;
            max-width: 700px;
            color: var(--dark-color);
            position: relative;
        }
        
        .close-button {
            position: absolute;
            top: 1rem;
            right: 1.5rem;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--secondary-color);
        }
        
        .modal h2 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        
        .modal-section {
            margin-bottom: 1.5rem;
        }
        
        .modal-section h3 {
            color: var(--primary-color);
            margin-bottom: 0.8rem;
        }