body {
    font-family: 'Inter', sans-serif;
    transition: overflow 0.3s ease;
    overflow-x: hidden;
}
/* Fonty */
.font-press-start { font-family: 'Press Start 2P', cursive; }
.font-vt323 { font-family: 'VT323', monospace; }
.font-silkscreen { font-family: 'Silkscreen', cursive; }
.font-bungee { font-family: 'Bungee', cursive; }

/* Herní okno */
.game-window {
    aspect-ratio: 4 / 3;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    border: 4px solid #1f2937;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.2), 0 4px 6px -2px rgba(0,0,0,0.1);
    position: relative;
    background: none;
    padding: 0;
    text-align: inherit;
    overflow: hidden;
}
.game-window:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3), 0 10px 10px -5px rgba(0,0,0,0.2);
}

/* Aktivní herní okno */
.game-window.active {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 50;
    border: none;
    border-radius: 0;
    aspect-ratio: auto;
    transform: none;
    background-color: #111827;
    display: flex;
    flex-direction: column;
    justify-content: center; /* Vertikální centrování canvasu */
    align-items: center;     /* Horizontální centrování canvasu */
    cursor: default;
}

.game-window h2 { transition: opacity 0.3s ease; }
.game-window canvas { 
    display: none; 
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    max-width: 100%;
    /* Canvas se nesmí roztahovat víc, než dovolí JS, jinak se deformuje */
}

.game-window.active h2 { display: none; }
.game-window.active .leaderboard { display: none; }
.game-window.active canvas { display: block; }
.game-window.active .controls-hint { display: flex; }
.game-window.active .close-btn { display: flex; }

/* Leaderboard */
.leaderboard { display: none; width: 100%; padding: 0 1rem; }
.leaderboard h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.leaderboard-list li {
    font-size: 1rem; padding: 4px 8px;
    display: flex; justify-content: space-between;
    border-radius: 4px; margin-bottom: 2px;
    background-color: rgba(255,255,255,0.1);
    backdrop-filter: blur(2px);
}
.leaderboard-list li:nth-child(odd) { background-color: rgba(255,255,255,0.05); }

/* Odpočet */
.countdown-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    display: flex; justify-content: center; align-items: center;
    font-size: 8rem; color: white; 
    text-shadow: 4px 4px 0 #000;
    z-index: 60; pointer-events: none; opacity: 0; transition: opacity 0.2s ease-in-out;
}

/* Barvy */
#snake-window { background-color: #a3e635; }
#pong-window { background-color: #60a5fa; }
#breakout-window { background-color: #facc15; }
#dino-window { background-color: #d1d5db; }
#invaders-window { background-color: #4c1d95; }
#tetris-window { background-color: #fca5a5; }

.noselect {
    -webkit-touch-callout: none; -webkit-user-select: none;
    -khtml-user-select: none; -moz-user-select: none;
    -ms-user-select: none; user-select: none;
}

/* --- OVLÁDACÍ BUBLINA (UPRAVENO) --- */
.controls-hint {
    display: none;
    position: absolute;
    /* Změna z bottom na top */
    top: 20px; 
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8); /* Tmavší pozadí pro lepší čitelnost */
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    padding: 8px 20px;
    border-radius: 30px; /* Více kulaté */
    font-family: 'VT323', monospace;
    font-size: 1.3rem;
    gap: 15px;
    align-items: center;
    pointer-events: none;
    white-space: nowrap;
    z-index: 90; /* Pod close buttonem, ale nad hrou */
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.key-icon {
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 6px;
    padding: 2px 8px;
    background: rgba(255,255,255,0.15);
    font-family: sans-serif;
    font-size: 0.9rem;
    font-weight: bold;
}

/* Close Button */
.close-btn {
    display: none;
    position: absolute;
    top: 20px;
    left: 20px;
    background: #ef4444;
    color: white;
    font-family: 'Bungee', cursive;
    font-size: 1.2rem;
    padding: 8px 16px;
    border-radius: 8px;
    border: 2px solid white;
    cursor: pointer;
    z-index: 101;
    box-shadow: 0 4px 0 #991b1b;
    transition: all 0.1s;
    text-transform: uppercase;
    align-items: center;
    gap: 8px;
}
.close-btn:active { transform: translateY(4px); box-shadow: none; }

/* Mute Button */
#mute-button {
    position: fixed; top: 20px; right: 20px; z-index: 200;
    background: rgba(0,0,0,0.6); color: white;
    border: 2px solid white; border-radius: 50%;
    width: 44px; height: 44px; font-size: 20px;
    cursor: pointer; display: flex; justify-content: center; align-items: center;
    transition: all 0.2s;
}
#mute-button:hover { background: rgba(0,0,0,0.8); transform: scale(1.1); }

/* Touch Controls */
#touch-controls {
    display: none;
    position: fixed; bottom: 20px; left: 0; width: 100%;
    padding: 0 20px; box-sizing: border-box; z-index: 100;
    justify-content: space-between; align-items: flex-end;
    pointer-events: none;
}
#touch-controls button {
    pointer-events: auto;
    width: 60px; height: 60px; font-size: 24px;
    border: 3px solid #1f2937; background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%; color: #1f2937; font-family: 'Press Start 2P', cursive;
    backdrop-filter: blur(4px);
    active: scale(0.9);
    transition: transform 0.1s;
    box-shadow: 0 4px 0 #000;
}
#touch-controls button:active { transform: translateY(4px); box-shadow: 0 0 0 #000; }
#d-pad { display: grid; grid-template-columns: repeat(3, 60px); grid-template-rows: repeat(2, 60px); grid-gap: 10px; }
#btn-left { grid-column: 1; grid-row: 2; }
#btn-up { grid-column: 2; grid-row: 1; }
#btn-down { grid-column: 2; grid-row: 2; }
#btn-right { grid-column: 3; grid-row: 2; }
#btn-action { width: 80px; height: 80px; font-size: 30px; border-radius: 50%; background-color: #ef4444; color: white; border-color: #991b1b; }

@media (max-width: 768px) {
    #touch-controls { display: flex; }
    .controls-hint { display: none !important; }
    .game-window.active { justify-content: flex-start; padding-top: 60px; }
    .game-window.active canvas { max-height: 55vh; }
    .close-btn { top: 10px; left: 10px; padding: 6px 12px; font-size: 1rem; }
    #mute-button { top: 10px; right: 10px; }
}