:root {
    --bg-color: #050505;
    --primary-color: #00f3ff; /* Cyan */
    --secondary-color: #ff00ff; /* Magenta */
    --text-color: #ffffff;
    --font-main: 'Outfit', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow: hidden;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    background: radial-gradient(circle at center, #1a1a1a 0%, #000000 100%);
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    justify-content: center;
    align-items: center;
}

.screen {
    text-align: center;
    pointer-events: auto;
    background: rgba(0, 0, 0, 0.85);
    padding: 3rem;
    border: 1px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    z-index: 10;
}

.hidden {
    display: none !important;
}

.logo {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
    text-shadow: 0 0 10px var(--primary-color), 0 0 20px var(--primary-color);
    letter-spacing: 4px;
}

p {
    margin-bottom: 2rem;
    font-size: 1.2rem;
    color: #cccccc;
}

.neon-btn {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-family: var(--font-main);
    font-weight: 700;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.1);
}

.neon-btn:hover {
    background: var(--primary-color);
    color: #000;
    box-shadow: 0 0 20px var(--primary-color), 0 0 40px var(--primary-color);
}

#hud {
    position: absolute;
    top: 2rem;
    left: 2rem;
    font-size: 1.5rem;
    font-weight: 700;
    text-shadow: 0 0 5px var(--secondary-color);
}

/* Glitch Effect */
.glitch {
    position: relative;
    font-size: 3rem;
    font-weight: 700;
    color: var(--secondary-color);
    text-shadow: 0 0 10px var(--secondary-color);
    margin-bottom: 1rem;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    left: 2px;
    text-shadow: -1px 0 #ff0000;
    clip: rect(24px, 550px, 90px, 0);
    animation: glitch-anim-2 3s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -1px 0 #00ff00;
    clip: rect(85px, 550px, 140px, 0);
    animation: glitch-anim 2.5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(17px, 9999px, 94px, 0); }
    20% { clip: rect(56px, 9999px, 6px, 0); }
    40% { clip: rect(23px, 9999px, 47px, 0); }
    60% { clip: rect(98px, 9999px, 12px, 0); }
    80% { clip: rect(45px, 9999px, 86px, 0); }
    100% { clip: rect(32px, 9999px, 53px, 0); }
}

@keyframes glitch-anim-2 {
    0% { clip: rect(12px, 9999px, 92px, 0); }
    20% { clip: rect(87px, 9999px, 54px, 0); }
    40% { clip: rect(26px, 9999px, 91px, 0); }
    60% { clip: rect(33px, 9999px, 34px, 0); }
    80% { clip: rect(76px, 9999px, 12px, 0); }
    100% { clip: rect(4px, 9999px, 67px, 0); }
}