body {
    position: relative;
    background-color: transparent !important;
    color: white;
    margin: 0;
    font-family: Calibri, sans-serif, 'Times New Roman';
    padding: 50px 20px;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0; 

    background: linear-gradient(rgba(0,0,0,0.4),rgba(0,0,0,0.4)), url("/img/background_hraci.jpg");

    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    z-index: -100; 
    
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    will-change: transform;
}

/* === NADPIS === */

.nadpis-hraci {
    text-align: center;
    font-size: 3em;
    margin-bottom: 50px;
    letter-spacing: 2px;
}

/* === MAIN === */

.hraci-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1200px; 
    margin: 0 auto; 
}

.karta-hrace {
    background-color: #d88a36c0;
    border-radius: 8px;
    padding: 12px 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    color: white;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    transition: transform 0.2s, box-shadow 0.2s; 
}

.karta-hrace:hover {
    transform: translateY(-5px); 
    box-shadow: 0 8px 15px rgba(216, 137, 54, 0.4);
}

.karta-hrace img {
    width: 32px;
    height: 32px;
    border-radius: 4px;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center; 
    padding: 15px 20px;
    border-radius: 8px; 
    color: white; 
    text-decoration: none; 
    font-weight: 700;
    font-size: 0.9em;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.4);
    height: 40px;
    transition: transform 0.2s, filter 0.2s; 
    z-index: 10;
    background: rgba(255, 255, 255, 0.1); 
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(5px);
    max-width: 200px;
    margin: 20px auto 40px auto;
}

.btn:hover {
    transform: translateY(-4px); 
    filter: brightness(1.15);
}

/* === Responzivita === */

@media (max-width: 950px) {
    .hraci-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 500px) {
    .hraci-grid { grid-template-columns: 1fr; } 
}