/* Základní nastavení */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a3a5f; 
    --accent-color: #e67e22; /* Oranžová pro industriální nádech */
    --text-color: #333;
    --light-bg: #f8f9fa;
    --dark-bg: #1e272e;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigace */
.navbar {
    background: var(--white);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 2rem;
    font-weight: 600;
    transition: color 0.3s;
}

.nav-links li a:hover {
    color: var(--accent-color);
}

/* Hero */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://czii.cz/herobackground.png?auto=format&fit=crop&q=80&w=1470') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    margin: 10px;
    transition: 0.3s;
}

.btn.primary {
    background: var(--accent-color);
    color: var(--white);
}

.btn.secondary {
    border: 2px solid var(--white);
    color: var(--white);
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* Sekce */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 40px;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--accent-color);
    margin: 10px auto;
}

.dark-bg {
    background: var(--dark-bg);
    color: var(--white);
}

.subtitle {
    text-align: center;
    margin-bottom: 50px;
    color: #aaa;
}

/* Karty služeb */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: rgba(255,255,255,0.05);
    padding: 40px;
    border-radius: 8px;
    border-top: 4px solid var(--accent-color);
}

.service-card h3 {
    margin-bottom: 20px;
}

.service-card ul {
    list-style: none;
}

.service-card ul li {
    margin-bottom: 8px;
}

/* Kontakt */
.contact-box {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
    background: var(--light-bg);
    padding: 40px;
    border-radius: 8px;
}

.contact-link {
    display: block;
    margin-top: 15px;
    font-size: 1.2rem;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 700;
}

footer {
    padding: 40px 0;
    background: #111;
    color: #666;
    text-align: center;
}

/* Responzivita */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-content h1 { font-size: 2.2rem; }
}
