/* CSS Reset und Basis Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* CSS Variablen für Farben */
:root {
    --primary-blue: #4A9FD9;
    --primary-blue-dark: #3788c4;
    --primary-blue-light: #6bb5e3;
    --secondary-gray: #6c757d;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #343a40;
    --white: #ffffff;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --sidebar-width: 280px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Sidebar Navigation */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(135deg, #2b5986 0%, #1c5d9e 100%);
    color: var(--white);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header .logo {
    width: 100%;
    height: auto;
    max-width: 240px;
}

.nav-menu {
    list-style: none;
    padding: 20px 0;
    flex: 1;
}

.nav-menu li {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: var(--white);
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    border-left-color: var(--white);
}

.nav-link i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-quick p {
    margin: 5px 0;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.contact-quick i {
    margin-right: 8px;
    width: 16px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 18px;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

/* Sections */
section {
    padding: 80px 0;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--primary-blue);
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-blue);
    margin: 20px auto;
    border-radius: 2px;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
    padding: 100px 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-text h1 {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-gray);
    margin-bottom: 20px;
    font-weight: 300;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--dark-gray);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 159, 217, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* About Section */
.about-section {
    background: var(--white);
}

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

.about-text h3 {
    color: var(--primary-blue);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--dark-gray);
    line-height: 1.8;
}

.qualifications {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 10px;
    margin-top: 40px;
    text-align: left;
}

.qualifications h4 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.qualifications ul {
    list-style: none;
}

.qualifications li {
    margin: 10px 0;
    display: flex;
    align-items: center;
}

.qualifications li i {
    color: var(--success);
    margin-right: 10px;
    width: 20px;
}

/* Services Section */
.services-section {
    background: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.service-icon i {
    font-size: 2rem;
    color: var(--white);
}

.service-card h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--secondary-gray);
    line-height: 1.6;
}

.service-areas {
    text-align: center;
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.service-areas h3 {
    color: var(--primary-blue);
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.service-areas p {
    margin-bottom: 20px;
    color: var(--dark-gray);
    font-size: 1.1rem;
}

.areas {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.area {
    background: var(--primary-blue);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
}

/* Contact Section */
.contact-section {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-card {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    margin-bottom: 30px;
}

.contact-logo {
    max-width: 100%;
    height: auto;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-item i {
    color: var(--primary-blue);
    font-size: 1.2rem;
    margin-top: 5px;
    min-width: 20px;
}

.contact-item h4 {
    color: var(--primary-blue);
    margin-bottom: 5px;
}

.contact-item a {
    color: var(--primary-blue);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    background: var(--light-gray);
    padding: 40px;
    border-radius: 15px;
}

.contact-form h3 {
    color: var(--primary-blue);
    margin-bottom: 30px;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-gray);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--medium-gray);
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Impressum Section */
.impressum-section {
    background: var(--light-gray);
}

.impressum-content {
    max-width: 800px;
    margin: 0 auto;
}

.impressum-info h3,
.impressum-info h4 {
    color: var(--primary-blue);
    margin-top: 30px;
    margin-bottom: 15px;
}

.impressum-info h3 {
    font-size: 1.5rem;
}

.impressum-info h4 {
    font-size: 1.2rem;
}

.impressum-info p {
    margin-bottom: 15px;
    line-height: 1.7;
    color: var(--dark-gray);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    section {
        padding: 60px 0;
    }
    
    section h2 {
        font-size: 2rem;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .areas {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-section {
        padding: 120px 0 60px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-text h1 {
        font-size: 1.8rem;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .hero-content {
        padding: 0 15px;
    }
}