:root {
    --primary-color: #0f0;
    /* Alien Green */
    --secondary-color: #b0f;
    /* Plasma Purple */
    --accent-color: #f00;
    /* Danger Red */
    --bg-color: #050510;
    /* Deep Space */
    --ui-bg: rgba(0, 20, 0, 0.7);
    --font-main: 'Rajdhani', sans-serif;
    --font-pixel: 'Press Start 2P', cursive;
}

body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-color);
    font-family: var(--font-main);
    color: white;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, #101020 0%, #000 100%);
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    box-shadow: 0 0 50px rgba(0, 255, 0, 0.1);
    border: 2px solid #222;
    box-sizing: border-box;
}

#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

#top-ui,
#bottom-ui {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    width: 100%;
    box-sizing: border-box;
    pointer-events: none;
    z-index: 5;
}

.stat-box {
    background: var(--ui-bg);
    padding: 10px 20px;
    border: 1px solid var(--primary-color);
    border-radius: 5px;
    font-family: var(--font-pixel);
    font-size: 12px;
    line-height: 1.6;
    color: #fff;
    text-shadow: 0 0 5px var(--primary-color);
    min-width: 150px;
}

#player-stat {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

#minion-stat {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
    text-shadow: 0 0 5px var(--secondary-color);
}

#enemy-stat {
    border-color: var(--accent-color);
    color: var(--accent-color);
    text-shadow: 0 0 5px var(--accent-color);
}

#cooldown-bar-container {
    position: absolute;
    top: 80px;
    /* Below Mothership */
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 10px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #333;
    border-radius: 5px;
    overflow: hidden;
}

#cooldown-bar {
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    transform-origin: left;
    transform: scaleX(1);
    transition: transform 0.1s linear;
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
    z-index: 10;
}

.screen.active {
    opacity: 1;
    pointer-events: auto;
}

h1 {
    font-family: var(--font-pixel);
    font-size: 48px;
    margin: 0 0 20px 0;
    color: var(--primary-color);
    text-shadow: 0 0 20px var(--primary-color), 2px 2px 0px #fff;
    text-align: center;
    line-height: 1.5;
}

.subtitle {
    font-size: 24px;
    letter-spacing: 5px;
    color: var(--secondary-color);
    margin-bottom: 40px;
    text-shadow: 0 0 10px var(--secondary-color);
}

.instruction,
.controls {
    font-size: 18px;
    margin: 10px 0;
    opacity: 0.8;
    text-align: center;
    line-height: 1.6;
}

button {
    margin-top: 40px;
    padding: 15px 40px;
    font-family: var(--font-pixel);
    font-size: 16px;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.2);
}

button:hover {
    background: var(--primary-color);
    color: #000;
    box-shadow: 0 0 30px rgba(0, 255, 0, 0.8);
    transform: scale(1.05);
}

#game-over-screen h1 {
    color: var(--accent-color);
    text-shadow: 0 0 20px var(--accent-color);
}

#stock-ready {
    color: yellow;
    animation: blink 0.5s infinite alternate;
}

@keyframes blink {
    from {
        opacity: 0.5;
    }

    to {
        opacity: 1;
        text-shadow: 0 0 10px yellow;
    }
}