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

body {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
}

#gameCanvas {
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
    background: #87CEEB;
}

/* Sterowanie - mały pasek na dole ekranu */
#ui {
    position: fixed;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    align-items: flex-end;
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.6);
    pointer-events: none;
    user-select: none;
}

.controls {
    background: rgba(0, 0, 0, 0.35);
    padding: 6px 12px;
    border-radius: 8px;
}

.controls h3 {
    margin-bottom: 3px;
    font-size: 11px;
    color: #FFD93D;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.controls p {
    margin: 2px 0;
    font-size: 11px;
    line-height: 1.5;
    opacity: 0.9;
    white-space: nowrap;
}

kbd {
    background: rgba(255, 255, 255, 0.15);
    padding: 0 4px;
    border-radius: 3px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    font-family: monospace;
    font-size: 10px;
}