/* Custom Neon Theme */
:root {
    --neon-blue: #00f3ff;
    --neon-purple: #bc13fe;
    --neon-pink: #ff0055;
    --neon-green: #0aff00;
    --neon-yellow: #ffdd00;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #050505;
}

.font-orbitron {
    font-family: 'Orbitron', sans-serif;
}

/* Background Grid */
.bg-grid {
    background-image: 
        linear-gradient(rgba(20, 20, 30, 0.8) 1px, transparent 1px),
        linear-gradient(90deg, rgba(20, 20, 30, 0.8) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.2;
}

/* Neon Text Colors */
.text-neon-blue { color: var(--neon-blue); text-shadow: 0 0 10px var(--neon-blue); }
.text-neon-purple { color: var(--neon-purple); text-shadow: 0 0 10px var(--neon-purple); }
.text-neon-pink { color: var(--neon-pink); text-shadow: 0 0 10px var(--neon-pink); }
.text-neon-green { color: var(--neon-green); text-shadow: 0 0 10px var(--neon-green); }
.text-neon-yellow { color: var(--neon-yellow); text-shadow: 0 0 10px var(--neon-yellow); }
.text-neon-cyan { color: var(--neon-blue); text-shadow: 0 0 15px var(--neon-blue); }

/* Backgrounds */
.bg-neon-blue { background-color: var(--neon-blue); box-shadow: 0 0 15px var(--neon-blue); }
.bg-neon-pink { background-color: var(--neon-pink); box-shadow: 0 0 15px var(--neon-pink); }
.bg-neon-green { background-color: var(--neon-green); box-shadow: 0 0 15px var(--neon-green); }
.bg-neon-yellow { background-color: var(--neon-yellow); box-shadow: 0 0 15px var(--neon-yellow); }

/* Option Cards */
.option-card {
    position: relative;
    background: rgba(30, 30, 40, 0.6);
    border: 2px solid #333;
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: default;
}

.option-card.active {
    border-color: var(--neon-blue);
    background: rgba(0, 243, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.2);
}

.option-card.correct {
    border-color: var(--neon-green);
    background: rgba(10, 255, 0, 0.2);
    box-shadow: 0 0 30px var(--neon-green);
    transform: scale(1.02);
}

.option-card.wrong {
    opacity: 0.5;
    transform: scale(0.95);
    filter: grayscale(0.8);
}

.option-key {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    margin-right: 20px;
    color: #555;
    transition: color 0.3s;
}

.option-card.active .option-key { color: var(--neon-blue); }
.option-card.correct .option-key { color: var(--neon-green); }

.option-text {
    font-size: 1.8rem;
    font-weight: 700;
    z-index: 10;
}

.option-progress {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.05);
    z-index: 0;
    transition: width 0.5s ease;
}

/* Leaderboard Items */
.leaderboard-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.05);
    padding: 12px 16px;
    border-radius: 8px;
    border-left: 4px solid transparent;
    transition: all 0.3s;
}

.leaderboard-item:nth-child(1) { border-color: var(--neon-yellow); background: rgba(255, 221, 0, 0.1); transform: scale(1.05); font-weight: bold; }
.leaderboard-item:nth-child(2) { border-color: silver; }
.leaderboard-item:nth-child(3) { border-color: #cd7f32; }

/* Animations */
@keyframes pulse-glow {
    0%, 100% { filter: brightness(100%) drop-shadow(0 0 5px var(--neon-blue)); }
    50% { filter: brightness(150%) drop-shadow(0 0 20px var(--neon-blue)); }
}