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

/* ===== SPOLEČNÉ ===== */
.center-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.content-box {
    background: rgba(0, 0, 0, 0.65);
    padding: 40px 50px;
    border-radius: 18px;
    text-align: center;
    max-width: 720px;
    color: white;
}

.main-title {
    font-size: 36px;
    margin-bottom: 40px;
    font-family: Arial, sans-serif;
}

/* ===== POZADÍ VÝBĚR ===== */
.vyber-background {
    width: 100vw;
    height: 100vh;
    background-image: url("pictures/pz.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    font-family: Arial, sans-serif;
}

/* ===== TLAČÍTKO ===== */
.select-btn {
    padding: 22px 50px;
    font-size: 26px;
    font-weight: bold;
    color: white;
    background: rgba(0, 0, 0, 0.85);
    border: 3px solid white;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.select-btn:hover {
    background: white;
    color: black;
    transform: scale(1.1);
}