:root {
    --neon-blue: #00f3ff;
    --neon-pink: #bc13fe;
    --neon-red: #ff0055;
    --neon-green: #00ff88;
    --glass: rgba(15, 23, 42, 0.95);
}

* { box-sizing: border-box; font-family: 'Poppins', sans-serif; }

body {
    background: #050a14;
    color: white;
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; margin: 0; overflow: hidden;
}

.grid-bg {
    position: fixed; width: 200%; height: 200%;
    background: linear-gradient(rgba(0,243,255,0.1) 1px, transparent 1px), 
                linear-gradient(90deg, rgba(0,243,255,0.1) 1px, transparent 1px);
    background-size: 40px 40px;
    transform: perspective(500px) rotateX(60deg);
    animation: gridMove 5s linear infinite;
    z-index: -1; top: -50%; left: -50%;
}
@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(40px); }
}

.card {
    background: var(--glass); padding: 2rem; border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.1); width: 95%; max-width: 600px;
    text-align: center; box-shadow: 0 0 40px rgba(0,243,255,0.1);
}

h1 { font-family: 'Orbitron'; text-shadow: 0 0 10px var(--neon-pink); margin-bottom: 20px; }
h2 { margin: 20px 0; font-size: 1.3rem; }

input, select {
    width: 100%; padding: 12px; margin: 5px 0;
    background: rgba(0,0,0,0.6); border: 1px solid var(--neon-blue);
    color: white; border-radius: 8px; font-size: 1rem; text-align: center;
}

.settings-grid {
    display: grid; grid-template-columns: 1fr 2fr; 
    gap: 10px; text-align: left; align-items: center; margin: 15px 0;
}

.btn {
    width: 100%; padding: 15px;
    background: linear-gradient(45deg, var(--neon-blue), var(--neon-pink));
    border: none; color: white; font-weight: bold;
    border-radius: 50px; cursor: pointer;
    font-size: 1.1rem; margin-top: 10px; transition: 0.2s; font-family: 'Orbitron';
}
.btn:active { transform: scale(0.95); }
.btn-opt { background: rgba(255,255,255,0.05); border: 2px solid rgba(255,255,255,0.1); margin-top: 10px; }

.player-list { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 20px; }
.player-tag {
    background: rgba(255,255,255,0.1); padding: 5px 15px;
    border-radius: 20px; font-size: 0.9rem; border: 1px solid var(--neon-blue);
}

.options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }
.hidden { display: none !important; }

/* FEEDBACK COLORS */
.correct { background: var(--neon-green) !important; color: black !important; transform: scale(1.02); }
.wrong { background: var(--neon-red) !important; opacity: 0.6; }