/* DC Bau Berlin - Modern Construction Website Styles */

:root {
    --primary-color: #4a90e2;
    --secondary-color: #6ba3d1;
    --accent-color: #b3d9f2;
    --text-color: #333;
    --bg-color: #e8f4f8;
    --white: #ffffff;
    --dark: #2c5aa0;
}

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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

/* Navigation */
nav {
    background: var(--primary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 1rem;
}

nav a:hover {
    color: var(--accent-color);
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

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

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

section {
    margin-bottom: 4rem;
}

section h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

section h3 {
    color: var(--secondary-color);
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(74, 144, 226, 0.7), rgba(107, 163, 209, 0.7)),
                url('../images/dc-profi-mosaic.jpg') center/cover;
    color: var(--white);
    padding: 6rem 2rem;
    text-align: center;
    margin: -3rem -2rem 3rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s, transform 0.2s;
    font-weight: 600;
    margin: 0.5rem;
}

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

.btn-secondary {
    background: transparent;
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-card ul {
    list-style: none;
    padding-left: 0;
}

.service-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--accent-color);
}

.service-card li:last-child {
    border-bottom: none;
}

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.gallery img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
    object-fit: cover;
    min-height: 250px;
}

.gallery img:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* Stats Section */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
    text-align: center;
}

.stat-item {
    padding: 2rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    color: var(--text-color);
    margin-top: 0.5rem;
}

/* Contact Section */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.contact-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

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

/* Footer */
footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 2rem;
    text-align: center;
    margin-top: 4rem;
}

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

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 2rem;
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    section h2 {
        font-size: 2rem;
    }
}