/* Farbschema basierend auf dem Logo */
:root {
    --primary-blue: #0d3289; /* Das Blau aus deinem Logo */
    --light-bg: #f4f7f9;
    --text-dark: #333;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    scroll-behavior: smooth;
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 0 20px;
}

/* Skip Link für Barrierefreiheit */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-blue);
    color: white;
    padding: 8px;
    z-index: 1001;
    transition: top 0.3s;
}

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

a:focus, button:focus, input:focus, textarea:focus {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Fix für Anchor-Links: Verhindert, dass der Sticky-Header die Überschriften überdeckt */
section[id] {
    scroll-margin-top: 80px;
}

/* Header & Navigation */
header {
    background: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--primary-blue);
}

.logo img {
    height: 40px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-dark);
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--primary-blue);
}

/* Mobile Menu Toggle (Hidden by default) */
.nav-toggle { display: none; }
.nav-toggle-label {
    display: none;
    cursor: pointer;
    padding: 10px;
}
.nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after {
    display: block;
    background: var(--text-dark);
    height: 2px;
    width: 25px;
    position: relative;
}
.nav-toggle-label span::before { content: ''; position: absolute; top: 8px; }
.nav-toggle-label span::after { content: ''; position: absolute; bottom: 8px; }

/* Hero Bereich */
.hero {
    background: var(--primary-blue);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    background: var(--white);
    color: var(--primary-blue);
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    margin-top: 20px;
    transition: transform 0.2s;
}

.btn:hover {
    transform: scale(1.05);
}

/* Über uns */
.about-content {
    max-width: 850px;
    margin: 0 auto 60px;
    text-align: center;
    font-size: 1.1rem;
}

.about-content p {
    margin-bottom: 20px;
}

/* Leistungen */
.section-title {
    text-align: center;
    margin: 60px 0 40px;
    font-size: 2rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.service-card {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 10px;
    border-bottom: 4px solid var(--primary-blue);
}

/* Kontakt */
.contact-section {
    background: #e9ecef;
    padding: 60px 0;
}

.contact-section a {
    color: var(--primary-blue);
    text-decoration: underline;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.hours-table td {
    padding: 5px 10px 5px 0;
}

footer {
    text-align: center;
    padding: 20px 0;
    background: var(--text-dark);
    color: var(--white);
}

.footer-links {
    margin-top: 10px;
    font-size: 0.8rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    margin: 0 5px;
}

.map-container {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    line-height: 0;
}

/* Back to Top Button */
.back-to-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-blue);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 1000;
}

.back-to-top-btn.show {
    opacity: 1;
    visibility: visible;
}

/* Mobil-Optimierung */
@media (max-width: 768px) {
    .grid { grid-template-columns: 1fr; }
    
    .nav-toggle-label { display: block; }
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        padding: 20px;
    }
    .nav-menu li { margin: 10px 0; }
    .nav-menu li a { margin-left: 0; }
    .nav-toggle:checked ~ .nav-menu { display: flex; }
}