/* ============================================
   EPR GAMES PAGE STYLES
   Quantum Portal - Interactive Entanglement Challenges
   ============================================ */

/* Challenge Boxes */
.challenges-section {
    margin: 40px 0;
}

.challenge-box {
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid var(--quantum-cyan);
    border-radius: 12px;
    padding: 35px;
    margin: 40px 0;
    transition: all 0.3s ease;
}

.challenge-box:hover {
    border-color: var(--quantum-green);
    box-shadow: 0 0 40px rgba(0, 255, 166, 0.2);
}

.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.challenge-header h3 {
    color: var(--quantum-cyan);
    font-size: 1.5rem;
}

.challenge-difficulty {
    font-size: 0.9rem;
    font-weight: bold;
}

.challenge-difficulty .easy { color: var(--quantum-green); }
.challenge-difficulty .medium { color: var(--quantum-yellow); }
.challenge-difficulty .hard { color: #ff6b35; }
.challenge-difficulty .expert { color: var(--quantum-magenta); }

.challenge-description {
    line-height: 1.7;
    margin: 20px 0;
    opacity: 0.9;
}

.game-instructions-box {
    margin: 20px 0;
}

.game-instructions-box ol {
    margin: 10px 0 0 20px;
}

.game-instructions-box li {
    margin: 8px 0;
}

/* Game Areas */
.game-area {
    margin-top: 30px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border: 1px solid rgba(0, 255, 255, 0.2);
}

.game-area canvas {
    width: 100%;
    max-width: 700px;
    border: 2px solid var(--quantum-cyan);
    border-radius: 4px;
    display: block;
    margin: 0 auto;
    background: rgba(0, 0, 0, 0.5);
}

.game-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 25px 0;
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
}

.game-stats > div {
    font-family: 'Orbitron', monospace;
    font-size: 1rem;
}

.game-stats span {
    color: var(--quantum-cyan);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Bell Test Game */
.detector-display {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 30px;
    align-items: center;
    margin: 30px 0;
}

.detector-box {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--quantum-green);
    border-radius: 8px;
    padding: 25px;
    text-align: center;
}

.detector-box h4 {
    color: var(--quantum-green);
    margin-bottom: 20px;
}

.angle-control {
    margin: 20px 0;
}

.angle-control label {
    display: block;
    color: var(--quantum-yellow);
    margin-bottom: 10px;
}

.angle-control input[type="range"] {
    width: 100%;
    margin: 10px 0;
}

input[type="range"] {
    -webkit-appearance: none;
    height: 6px;
    background: rgba(0, 255, 255, 0.2);
    outline: none;
    border-radius: 3px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--quantum-cyan);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--quantum-cyan);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--quantum-cyan);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--quantum-cyan);
}

.result-display {
    margin: 20px 0;
    font-size: 2rem;
    font-weight: bold;
    font-family: 'Orbitron', monospace;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-display.detected {
    color: var(--quantum-green);
}

.result-display.not-detected {
    color: var(--quantum-magenta);
}

.entangled-pair-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.pair-source {
    font-size: 2rem;
    animation: sourcePulse 2s ease-in-out infinite;
}

@keyframes sourcePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.photon-beam {
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent, 
        var(--quantum-cyan), 
        transparent);
    animation: beamPulse 1.5s linear infinite;
}

@keyframes beamPulse {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

.beam-left {
    transform: rotate(180deg);
}

/* Teleportation Game */
.teleport-display {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 30px;
    align-items: center;
    margin: 30px 0;
}

.alice-box, .bob-box {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--quantum-cyan);
    border-radius: 8px;
    padding: 25px;
    text-align: center;
}

.alice-box h4, .bob-box h4 {
    color: var(--quantum-cyan);
    margin-bottom: 20px;
}

.state-selector, .gate-selector {
    margin: 20px 0;
}

.state-selector select, .gate-selector select {
    width: 100%;
    padding: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: var(--quantum-cyan);
    border: 1px solid var(--quantum-cyan);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
}

.qubit-viz {
    width: 100px;
    height: 100px;
    margin: 20px auto;
    border-radius: 50%;
    background: radial-gradient(circle, var(--quantum-magenta), transparent);
    animation: qubitSpin 3s linear infinite;
}

@keyframes qubitSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.epr-channel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.channel-label {
    color: var(--quantum-yellow);
    font-size: 0.9rem;
    font-weight: bold;
}

.entanglement-viz {
    width: 80px;
    height: 80px;
    border: 3px dashed var(--quantum-yellow);
    border-radius: 50%;
    animation: rotateEntanglement 4s linear infinite;
}

@keyframes rotateEntanglement {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.protocol-steps {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.measurement-result, .verification {
    margin: 20px 0;
    padding: 15px;
    border-radius: 6px;
    min-height: 50px;
}

.verification.success {
    background: rgba(0, 255, 166, 0.2);
    border: 2px solid var(--quantum-green);
    color: var(--quantum-green);
}

.verification.failure {
    background: rgba(255, 0, 110, 0.2);
    border: 2px solid var(--quantum-magenta);
    color: var(--quantum-magenta);
}

/* QKD Game */
.qkd-settings {
    margin: 20px 0;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
}

.qkd-settings label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.qkd-settings input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.transmission-log {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--quantum-cyan);
    border-radius: 6px;
    padding: 20px;
    min-height: 200px;
    max-height: 300px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    margin: 20px 0;
}

.transmission-log::-webkit-scrollbar {
    width: 8px;
}

.transmission-log::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
}

.transmission-log::-webkit-scrollbar-thumb {
    background: var(--quantum-cyan);
    border-radius: 4px;
}

.key-display {
    margin: 30px 0;
}

.key-box {
    background: rgba(0, 255, 166, 0.1);
    border: 2px solid var(--quantum-green);
    border-radius: 8px;
    padding: 25px;
    text-align: center;
}

.key-box h4 {
    color: var(--quantum-green);
    margin-bottom: 20px;
}

.key-box #secretKey {
    font-family: 'Courier New', monospace;
    font-size: 1.3rem;
    color: var(--quantum-yellow);
    padding: 15px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    word-break: break-all;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.key-stats {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

/* Network Canvas for Swapping */
#networkCanvas {
    cursor: crosshair;
}

.network-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.network-info {
    display: flex;
    justify-content: space-around;
    margin: 20px 0;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
}

.network-info > div {
    font-family: 'Orbitron', monospace;
}

.network-info span {
    color: var(--quantum-cyan);
    font-weight: bold;
}

/* Quiz Styles */
.quiz-question {
    font-size: 1.2rem;
    line-height: 1.7;
    margin: 25px 0;
    padding: 25px;
    background: rgba(0, 255, 255, 0.1);
    border-left: 4px solid var(--quantum-cyan);
    border-radius: 4px;
}

.quiz-options {
    display: grid;
    gap: 15px;
    margin: 25px 0;
}

.quiz-option {
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 255, 255, 0.3);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.quiz-option:hover:not(.selected):not(.disabled) {
    border-color: var(--quantum-cyan);
    background: rgba(0, 255, 255, 0.1);
    transform: translateX(10px);
}

.quiz-option.selected {
    border-color: var(--quantum-yellow);
    background: rgba(255, 255, 0, 0.1);
}

.quiz-option.correct {
    border-color: var(--quantum-green);
    background: rgba(0, 255, 166, 0.2);
}

.quiz-option.incorrect {
    border-color: var(--quantum-magenta);
    background: rgba(255, 0, 110, 0.2);
}

.quiz-option.disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.quiz-feedback {
    margin: 25px 0;
    padding: 20px;
    border-radius: 8px;
    line-height: 1.7;
    min-height: 60px;
}

.quiz-feedback.correct {
    background: rgba(0, 255, 166, 0.2);
    border: 2px solid var(--quantum-green);
    color: var(--quantum-green);
}

.quiz-feedback.incorrect {
    background: rgba(255, 0, 110, 0.2);
    border: 2px solid var(--quantum-magenta);
    color: var(--quantum-magenta);
}

/* Leaderboard */
.leaderboard-section {
    margin: 60px 0;
}

.leaderboard-box {
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--quantum-yellow);
    border-radius: 12px;
    padding: 35px;
}

.leaderboard-box h3 {
    color: var(--quantum-yellow);
    text-align: center;
    margin-bottom: 30px;
}

.leaderboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.score-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid rgba(0, 255, 255, 0.3);
    text-align: center;
}

.score-label {
    color: var(--quantum-cyan);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.score-value {
    color: var(--quantum-yellow);
    font-size: 1.5rem;
    font-weight: bold;
    font-family: 'Orbitron', monospace;
}

/* Controls */
.controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
    flex-wrap: wrap;
}

/* Responsive Design */
@media (max-width: 768px) {
    .challenge-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .detector-display,
    .teleport-display {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .photon-beam {
        transform: rotate(90deg);
        width: 50px;
    }
    
    .protocol-steps {
        flex-direction: column;
    }
    
    .network-controls {
        flex-direction: column;
    }
    
    .leaderboard-grid {
        grid-template-columns: 1fr;
    }
}