body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: #333;
    background: #fff;
}
.header {
    background: #C8102E;
    color: #fff;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}
.cta-button {
    background: #FFDD00;
    color: #000;
    padding: 10px 15px;
    text-decoration: none;
    margin-left: 10px;
}
.cta-messenger {
    background: #0084FF;
    color: #fff;
}
.hero {
    position: relative;
    height: 400px;
    overflow: hidden;
}
.slider {
    position: relative;
    width: 100%;
    height: 100%;
}
.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    display: none;
    text-align: center;
}
.slide.active {
    display: block;
}
.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
}
.slide h1 {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    background: rgba(0,0,0,0.5);
    padding: 10px;
}
.obszar {
    background: #FFDD00;
    text-align: center;
    padding: 10px;
    font-weight: bold;
}
.haslo {
    color: #C8102E;
    font-weight: bold;
    font-size: 1.5em;
    text-align: center;
}