body {
    margin: 0;
    font-family: sans-serif;
    background: #1c1c1c;
    color: #eee;
}

/* Horní lišta */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #2d2d2d;
    padding: 12px 20px;
    border-bottom: 1px solid #444;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 20px;
    font-weight: bold;
}

.menu, .footer-menu {
    display: flex;
    gap: 20px;
}

.menu a,
.footer-menu a {
    color: #ccc;
    text-decoration: none;
    font-size: 14px;
}

.menu a:hover,
.footer-menu a:hover {
    color: white;
}

/* Sekce / prázdná okna */
.section {
    width: 100%;
    padding: 80px 40px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Střídání barev sekcí */
.section:nth-child(even) {
    background: #222;
}

.section:nth-child(odd) {
    background: #181818;
}

/* Obsah uvnitř sekcí */
.section-content {
    max-width: 900px;
    width: 100%;
    text-align: center;
    border: 1px solid #444;
    border-radius: 10px;
    padding: 40px;
    background: #2b2b2b;
}

/* Placeholder pro obrázek/video */
.placeholder {
    width: 100%;
    height: 250px;
    background: #444;
    border-radius: 8px;
    margin-bottom: 20px;
}

/* Footer */
footer {
    background: #2d2d2d;
    padding: 20px;
    border-top: 1px solid #444;
    text-align: center;
}