/* General body style */
body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background-color: #0b0b0b; /* dark starfield */
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

/* Starfield background using pseudo-element */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: radial-gradient(white, transparent) repeat;
    background-size: 2px 2px;
    animation: starMove 60s linear infinite;
    z-index: -1;
    opacity: 0.6;
}

@keyframes starMove {
    from { background-position: 0 0; }
    to { background-position: -2000px -2000px; }
}

/* Game container */
#gameContainer {
    display: flex;
    align-items: flex-start;
    margin-top: 20px;
    transform-origin: top center;
    margin: 0 auto;
}

/* Canvas */
#gameCanvas {
    background: linear-gradient(145deg, #1c1c1c, #2a2a2a); /* dark gradient */
    border-radius: 15px; /* rectangle with rounded corners */
    border: 2px solid #555;
}

/* Game title */
h1 {
    text-align: center;
    font-size: 36px;
    color: #00ffff;
    margin-top: 20px;
}

/* Buttons container */
#buttonsContainer {
    margin-top: 20px;
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

/* Buttons style */
#startBtn, #restartBtn, #pauseBtn {
    padding: 10px 30px;
    font-size: 20px;
    border: none;
    border-radius: 10px;
    background-color: #00ffff;
    color: #121212;
    cursor: pointer;
    transition: all 0.3s ease;
}

/* Start & Restart hover */
#startBtn:hover, #restartBtn:hover, #pauseBtn:hover {
    transform: scale(1.05);
}

/* Lock style for pause button when disabled */
#pauseBtn:disabled {
    background-color: #ff5050;
    color: #fff;
    font-size: 22px; /* make lock button bigger */
    box-shadow: 0 0 15px #ff5050, 0 0 30px #ff8080;
}

/* Scoreboard curved card on top-right */
#scoreboard {
    margin-left: 40px; /* space from canvas */
    padding: 20px 25px;
    border-radius: 25px;
    border: 2px solid #00ffff;
    box-shadow: 0 0 15px #00ffff20 inset;
    text-align: left;
    align-self: flex-start;
    width: 220px;
}

/* Score items */
#scoreboard p {
    margin: 10px 0;
}

/* Ball pseudo animation */
@keyframes ballGlow {
    0% { box-shadow: 0 0 3px #00ffff50; }
    50% { box-shadow: 0 0 8px #00ffff50; }
    100% { box-shadow: 0 0 3px #00ffff50; }
}

.ball {
    animation: ballGlow 1s infinite alternate;
}

/* 📱 Mobile */
@media (max-width: 600px) {
    #gameContainer {
        transform: scale(0.5); /* 50% */
    }
}

/* 📲 Tablet */
@media (min-width: 601px) and (max-width: 1024px) {
    #gameContainer {
        transform: scale(0.8); /* 80% */
    }
}

/* 💻 Desktop */
@media (min-width: 1025px) and (max-width: 1920px) {
    #gameContainer {
        transform: scale(0.9); /* 90% */
    }
}

/* 📺 TV / Very large screens */
@media (min-width: 1921px) {
    #gameContainer {
        transform: scale(0.9); /* 90% */
    }
}