@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Bruno+Ace&display=swap');

body {
    font-family: 'Share Tech Mono', monospace;
    background-color: #0f172a;
    color: #e2e8f0;
    overflow-x: hidden
}

.font-brain {
    font-family: 'Bruno Ace', cursive
}

.neural-bg {
    background: #000;
    min-height: 100vh;
    position: relative;
    overflow: hidden
}

.node {
    position: absolute;
    background: white;
    border-radius: 50%;
    box-shadow: 0 0 10px white, 0 0 20px #a855f7
}

.connection {
    position: absolute;
    height: 1px;
    background: rgba(168, 85, 247, 0.3);
    transform-origin: left center
}

.synapse-pulse {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #a855f7;
    border-radius: 50%;
    box-shadow: 0 0 5px #a855f7;
    filter: blur(1px)
}

.mind-interface {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid #a855f7;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.2)
}

.brain-pulse {
    animation: brainPulse 3s infinite
}

@keyframes brainPulse {
    0% {
        box-shadow: 0 0 20px rgba(168, 85, 247, 0.2)
    }

    50% {
        box-shadow: 0 0 40px rgba(168, 85, 247, 0.5)
    }

    100% {
        box-shadow: 0 0 20px rgba(168, 85, 247, 0.2)
    }
}

.question-node {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 4px solid #d8b4fe;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: radial-gradient(circle at 30% 30%, #3b0764, #0f172a);
    position: relative;
    z-index: 10;
    box-shadow: 0 0 30px rgba(216, 180, 254, 0.3)
}

.answer-node {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 2px solid #a855f7;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: #1e1b4b;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    z-index: 10
}

.answer-node:hover {
    transform: scale(1.1);
    background: #3b0764;
    border-color: #d8b4fe;
    box-shadow: 0 0 20px #d8b4fe
}

.answer-node.correct {
    background: #22c55e;
    border-color: #4ade80;
    box-shadow: 0 0 30px #22c55e
}

.answer-node.wrong {
    background: #ef4444;
    border-color: #fca5a5;
    box-shadow: 0 0 30px #ef4444
}

.timer-bar {
    height: 4px;
    background: #334155;
    border-radius: 2px;
    overflow: hidden
}

.timer-fill {
    height: 100%;
    background: linear-gradient(90deg, #a855f7, #d8b4fe);
    width: 100%;
    transition: width 0.1s linear
}