:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-bg: #f5f6fa;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* Header & Navigation */
header {
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    width: 250px;
    height: auto;
    padding: 10px 0;
    object-fit: scale-down;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-color);
    margin-left: 2rem;
    transition: color 0.3s;
}

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

/* Skip to content link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--secondary-color);
    color: white;
    padding: 8px;
    z-index: 1100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    z-index: 1001;
}

.mobile-nav-toggle:focus {
    outline: 2px solid var(--secondary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.9)),
                url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 0 1rem;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #2980b9;
}

/* Services Section */
.services {
    padding: 5rem 1rem;
    background-color: var(--light-bg);
}

.services h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* About Section */
.about {
    padding: 5rem 1rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* Contact Section */
.contact {
    padding: 5rem 1rem;
    background-color: var(--light-bg);
}

.contact h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.contact-form textarea {
    height: 150px;
}

.contact-form button {
    padding: 1rem;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.contact-form button:hover {
    background-color: #2980b9;
}

/* Certifications Section */
.certifications {
    padding: 5rem 1rem;
    background-color: white;
    max-width: 1200px;
    margin: 0 auto;
}

.certifications h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    width: 100%;
}

.cert-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.cert-card:hover {
    transform: translateY(-5px);
}

.cert-card img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 1.5rem;
    padding: 1rem;
}

.cert-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.cert-card p {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-color);
}

/* Responsive Design für die Zertifikatssektion */
@media (max-width: 1200px) {
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
        margin: 0 auto;
    }
}

@media (max-width: 600px) {
    .cert-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .cert-card img {
        width: 100px;
        height: 100px;
    }
}


/* Form Status Styles */
#formStatus {
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 5px;
    display: none;
}

#formStatus.success {
    display: block;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

#formStatus.error {
    display: block;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Cookie Consent Banner */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    display: none;
    z-index: 1050;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
}

.cookie-consent.active {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.cookie-consent p {
    flex: 1;
    margin: 0;
    min-width: 200px;
}

.cookie-buttons {
    display: flex;
    gap: 0.5rem;
}

.cookie-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.cookie-accept {
    background-color: var(--secondary-color);
    color: white;
}

.cookie-accept:hover {
    background-color: #2980b9;
}

.cookie-decline {
    background-color: transparent;
    color: white;
    border: 1px solid white;
}

.cookie-decline:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 3rem 1rem 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 70%;
        max-width: 300px;
        background: white;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        padding: 2rem 0;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        z-index: 1000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        margin: 0;
        font-size: 1.2rem;
    }
    
    .logo img {
        width: 200px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .logo img {
        width: 180px;
    }
}