/* --- Variablen & Reset (Clean Service Palette) --- */
:root {
    /* Farben */
    --color-primary: #0275d8;   /* Service Blau */
    --color-primary-dark: #025aa5;
    --color-bg: #ffffff;        /* Reinweiß */
    --color-light-gray: #f8f9fa; /* Sehr helles Grau für Sektionen */
    --color-text: #495057;      /* Dunkelgrau Text */
    --color-heading: #212529;   /* Fast Schwarz Heading */
    --color-border: #dee2e6;
    
    /* Font */
    --font-heading: 'Roboto Slab', serif; /* Solide, vertrauenswürdig */
    --font-body: 'Open Sans', sans-serif; /* Sehr gut lesbar */
    
    /* Layout */
    --header-height: 70px;
    --top-bar-height: 40px;
    --container-width: 1100px;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    padding-top: calc(var(--header-height) + var(--top-bar-height));
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; border-radius: 4px; }

/* --- Layout --- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Top Bar --- */
.top-bar {
    background-color: var(--color-heading);
    color: #fff;
    height: var(--top-bar-height);
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1001;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
}
.top-bar-inner {
    display: flex;
    justify-content: space-between;
    width: 100%;
}
.contact-info span, .service-area span { margin-right: 15px; }
.divider { color: #666; margin: 0 5px; }

/* --- Header --- */
.main-header {
    background-color: var(--color-bg);
    height: var(--header-height);
    position: fixed;
    top: var(--top-bar-height); left: 0; right: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
}

.header-content {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: 1px;
}
.fix-part { color: var(--color-primary); }
.icon { font-size: 1.2rem; }

.navbar ul { display: flex; gap: 30px; }
.navbar a {
    font-weight: 600;
    color: var(--color-text);
    font-size: 1rem;
    padding: 5px 0;
}
.navbar a:hover, .navbar a.active { color: var(--color-primary); border-bottom: 2px solid var(--color-primary); }

.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.mobile-menu-btn span { display: block; width: 25px; height: 3px; background-color: var(--color-heading); }

.mobile-menu-overlay {
    position: fixed; top: calc(var(--header-height) + var(--top-bar-height)); left: 0; width: 100%; height: 0;
    background-color: var(--color-bg);
    overflow: hidden;
    transition: 0.3s;
    z-index: 999;
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
}
.mobile-menu-overlay nav { padding: 20px; text-align: center; }
.mobile-menu-overlay li { margin-bottom: 15px; }
.mobile-menu-overlay a { font-weight: 600; color: var(--color-heading); }

/* --- Hero --- */
.hero {
    position: relative;
    height: 70vh;
    display: flex;
    align-items: center;
    color: var(--color-bg);
}
.hero-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
}
.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(33, 37, 41, 0.6); /* Dunkler Filter */
    z-index: 0;
}
.hero-content { position: relative; z-index: 1; max-width: 700px; text-align: left; }

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #fff;
}
.hero p { font-size: 1.2rem; margin-bottom: 30px; color: #f8f9fa; }
.hero-buttons { display: flex; gap: 15px; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 12px 25px;
    font-weight: 600;
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
    transition: 0.2s;
    font-size: 1rem;
    border: 2px solid transparent;
}
.btn-lg { padding: 15px 35px; }

.btn-primary { background-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background-color: var(--color-primary-dark); }

.btn-white-outline { background: transparent; border-color: #fff; color: #fff; }
.btn-white-outline:hover { background: #fff; color: var(--color-heading); }

.full-width { width: 100%; }

/* --- Sections --- */
.section { padding: 80px 0; }
.text-center { text-align: center; }
.bg-light-blue { background-color: #e3f2fd; }
.bg-grey { background-color: var(--color-light-gray); }
.bg-dark { background-color: var(--color-heading); color: #fff; }

.section-title { margin-bottom: 50px; }
.section-title h2 { font-family: var(--font-heading); font-size: 2.2rem; color: var(--color-heading); margin-bottom: 10px; }
.section-title p { color: #6c757d; max-width: 600px; margin: 0 auto; }

/* --- Grid & Cards --- */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }

.service-card {
    background: #fff;
    padding: 30px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    text-align: center;
    transition: 0.3s;
}
.service-card:hover { 
    box-shadow: 0 10px 20px rgba(0,0,0,0.05); 
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.icon-wrapper { font-size: 2.5rem; margin-bottom: 15px; background: #e3f2fd; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 15px auto; }
.service-card h3 { margin-bottom: 10px; color: var(--color-heading); }

/* --- Split Layout --- */
.split-layout { display: flex; gap: 50px; align-items: center; }
.split-layout.reverse { flex-direction: row-reverse; }
.text-content, .image-content { flex: 1; }

.check-list li { margin-bottom: 10px; padding-left: 25px; position: relative; }
.check-list li::before { content: '✔'; color: var(--color-primary); position: absolute; left: 0; font-weight: bold; }

/* --- Values --- */
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-top: 40px; }
.value-item h4 { color: var(--color-primary); margin-bottom: 10px; font-family: var(--font-heading); }

/* --- Testimonials --- */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.testimonial-card { 
    background: #fff; 
    padding: 25px; 
    border: 1px solid var(--color-border);
    border-radius: 4px;
}
.stars { color: #ffc107; margin-bottom: 10px; }
.testimonial-card p { font-style: italic; color: #495057; margin-bottom: 15px; font-size: 0.95rem; }
.author strong { display: block; color: var(--color-heading); font-size: 0.9rem; }
.author span { font-size: 0.8rem; color: #6c757d; }

/* --- Contact & Forms --- */
.contact-wrapper { display: grid; grid-template-columns: 1fr 1.5fr; gap: 50px; }
.contact-card { background: var(--color-heading); color: #fff; padding: 40px; border-radius: 4px; }
.contact-card h2 { color: #fff; margin-bottom: 20px; }
.info-block { margin-top: 30px; }
.info-block h3 { font-size: 1rem; color: var(--color-primary); margin-bottom: 5px; text-transform: uppercase; }
.info-block a { color: #fff; font-weight: bold; }

.contact-form-container { background: #fff; padding: 40px; border: 1px solid var(--color-border); border-radius: 4px; }
.clean-form .form-group { margin-bottom: 20px; }
label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 0.9rem; }
input, select, textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}
input:focus, select:focus, textarea:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 3px rgba(2, 117, 216, 0.2); }

/* --- Privacy --- */
.policy-container { max-width: 800px; margin: 0 auto; padding: 60px 20px; }
.blue-line { border: 0; height: 2px; background: var(--color-primary); margin: 20px 0; width: 50px; }

/* --- Footer --- */
.main-footer { background-color: var(--color-light-gray); padding: 60px 0 20px; border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-col h3 { font-family: var(--font-heading); color: var(--color-heading); margin-bottom: 15px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col a:hover { color: var(--color-primary); text-decoration: underline; }
.footer-bottom { border-top: 1px solid #dee2e6; padding-top: 20px; text-align: center; font-size: 0.85rem; color: #6c757d; }

/* --- Responsive --- */
@media (max-width: 900px) {
    .top-bar-inner { flex-direction: column; gap: 5px; text-align: center; justify-content: center; }
    body { padding-top: calc(var(--header-height) + 60px); }
    
    .navbar, .header-btn { display: none; }
    .mobile-menu-btn { display: flex; }
    
    .hero-content h1 { font-size: 2.5rem; }
    .split-layout, .contact-wrapper { display: flex; flex-direction: column; }
    .image-content img { margin-bottom: 20px; }
}