/* Daily GK Quiz - Frontend Styles */
:root {
    --primary: #59a4f0;
    --secondary: #3498db;
    --accent: #e74c3c;
    --success: #27ae60;
    --warning: #f39c12;
    --light: #f8f9fa;
    --dark: #2c3e50;
    --text: #333;
    --text-light: #666;
    --border: #e0e0e0;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

#dgk-quiz-container,
#dgk-leaderboard-container {
    max-width: 900px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--text);
}

/* Loading */
.dgk-quiz-loading,
.dgk-leaderboard-loading {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.dgk-spinner {
    display: inline-flex;
    gap: 10px;
    margin-bottom: 20px;
}

.dgk-spinner-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--secondary);
    animation: dgk-pulse 1.4s infinite ease-in-out both;
}

.dgk-spinner-dot:nth-child(1) { animation-delay: -0.32s; }
.dgk-spinner-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes dgk-pulse {
    0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

/* Quiz Header */
.dgk-quiz-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
    color: white;
    padding: 30px;
    border-radius: var(--radius) var(--radius) 0 0;
    position: relative;
    overflow: hidden;
}

.dgk-quiz-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
}

.dgk-quiz-title {
    font-size: 28px;
    margin: 0 0 10px 0;
    font-weight: 700;
}

.dgk-quiz-description {
    opacity: 0.9;
    margin-bottom: 15px;
    font-size: 16px;
    line-height: 1.5;
}

/* Timer */
.dgk-timer-container {
    background: rgba(255,255,255,0.1);
    padding: 15px 20px;
    border-radius: 8px;
    margin-top: 20px;
    display: inline-flex;
    align-items: center;
    gap: 15px;
}

.dgk-timer-label {
    font-weight: 600;
    font-size: 14px;
}

.dgk-timer {
    font-size: 24px;
    font-weight: 700;
    font-family: 'Courier New', monospace;
    background: rgba(0,0,0,0.2);
    padding: 5px 15px;
    border-radius: 4px;
    min-width: 100px;
    text-align: center;
}

.dgk-timer.warning {
    color: var(--warning);
    animation: dgk-pulse-slow 2s infinite;
}

.dgk-timer.danger {
    color: var(--accent);
    animation: dgk-pulse-fast 1s infinite;
}

@keyframes dgk-pulse-slow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes dgk-pulse-fast {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Question Container */
.dgk-question-container {
    background: white;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* Progress */
.dgk-progress-container {
    background: var(--light);
    padding: 20px 30px;
    border-bottom: 1px solid var(--border);
}

.dgk-progress-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 10px;
}

.dgk-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    border-radius: 3px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.dgk-progress-text {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

/* Question Content */
.dgk-question-content {
    padding: 30px;
}

.dgk-question-number {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.dgk-question-text {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 30px;
    color: var(--text);
    padding: 20px;
    background: var(--light);
    border-radius: 8px;
    border-left: 4px solid var(--secondary);
}

/* Options */
.dgk-options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 30px;
}

.dgk-option {
    padding: 18px;
    border: 2px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    background: white;
}

.dgk-option:hover {
    border-color: var(--secondary);
    background: rgba(52, 152, 219, 0.05);
    transform: translateY(-2px);
}

.dgk-option.selected {
    border-color: var(--secondary);
    background: rgba(52, 152, 219, 0.1);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.15);
}

.dgk-option.correct {
    border-color: var(--success);
    background: rgba(39, 174, 96, 0.1);
    animation: dgk-correct-pop 0.5s ease;
}

.dgk-option.incorrect {
    border-color: var(--accent);
    background: rgba(231, 76, 60, 0.1);
    animation: dgk-shake 0.5s ease;
}

@keyframes dgk-correct-pop {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes dgk-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.dgk-option-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: bold;
    margin-right: 15px;
    flex-shrink: 0;
    font-size: 14px;
}

.dgk-option.correct .dgk-option-label {
    background: var(--success);
}

.dgk-option.incorrect .dgk-option-label {
    background: var(--accent);
}

.dgk-option-text {
    flex-grow: 1;
    font-size: 16px;
    line-height: 1.5;
    padding-top: 4px;
}

/* Explanation */
.dgk-explanation {
    margin-top: 30px;
    padding: 20px;
    background: var(--light);
    border-radius: 8px;
    border-left: 4px solid var(--warning);
    animation: dgk-fade-in 0.5s ease;
}

@keyframes dgk-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.dgk-explanation-title {
    font-weight: 600;
    color: var(--warning);
    margin-bottom: 10px;
    font-size: 16px;
}

.dgk-explanation-content {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
}

/* Navigation */
.dgk-navigation {
    display: flex;
    justify-content: space-between;
    padding: 20px 30px;
    border-top: 1px solid var(--border);
    background: var(--light);
}

/* Buttons */
.dgk-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
}

.dgk-btn-primary {
    background: linear-gradient(135deg, var(--secondary) 0%, #2980b9 100%);
    color: white;
}

.dgk-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.3);
}

.dgk-btn-secondary {
    background: var(--light);
    color: var(--text);
    border: 2px solid var(--border);
}

.dgk-btn-secondary:hover:not(:disabled) {
    border-color: var(--secondary);
    transform: translateY(-2px);
}

.dgk-btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #219653 100%);
    color: white;
}

.dgk-btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(39, 174, 96, 0.3);
}

.dgk-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Student Form */
.dgk-student-form {
    background: white;
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.dgk-student-form h3 {
    margin: 0 0 20px 0;
    color: var(--primary);
    font-size: 20px;
}

.dgk-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.dgk-form-group {
    margin-bottom: 15px;
}

.dgk-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary);
}

.dgk-form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.dgk-form-group input:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Results Container */
.dgk-results-container {
    background: white;
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.dgk-results-title {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 10px;
    font-weight: 700;
}

.dgk-results-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
}

/* Score Circle */
.dgk-score-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
    margin: 0 auto 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.3);
}

.dgk-score-circle::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
    opacity: 0.2;
    z-index: -1;
}

.dgk-percentage {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 5px;
}

.dgk-score-text {
    font-size: 18px;
    opacity: 0.9;
}

/* Score Details */
.dgk-score-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.dgk-detail-card {
    background: var(--light);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary);
}

.dgk-detail-card h4 {
    margin: 0 0 10px 0;
    color: var(--text-light);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.dgk-detail-card p {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary);
}

/* Social Sharing */
.dgk-social-sharing {
    margin: 40px 0;
    padding: 30px;
    background: var(--light);
    border-radius: var(--radius);
}

.dgk-social-sharing h4 {
    margin: 0 0 20px 0;
    color: var(--primary);
    font-size: 18px;
}

.dgk-social-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.dgk-social-btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    min-width: 120px;
    justify-content: center;
}

.dgk-social-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    opacity: 0.9;
}

.dgk-twitter { background: #000000; }
.dgk-facebook { background: #1877f2; }
.dgk-whatsapp { background: #25d366; }
.dgk-telegram { background: #0088cc; }

.dgk-social-icon {
    font-weight: bold;
    font-size: 16px;
}

/* Results Actions */
.dgk-results-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
    flex-wrap: wrap;
}

.dgk-restart-btn,
.dgk-review-btn,
.dgk-leaderboard-btn {
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.dgk-restart-btn {
    background: linear-gradient(135deg, var(--success) 0%, #219653 100%);
    color: white;
}

.dgk-review-btn {
    background: var(--warning);
    color: white;
}

.dgk-leaderboard-btn {
    background: linear-gradient(135deg, var(--primary) 0%, #2c3e50 100%);
    color: white;
}

.dgk-restart-btn:hover,
.dgk-review-btn:hover,
.dgk-leaderboard-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* Review Mode */
.dgk-review-container {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.dgk-review-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
    color: white;
    padding: 25px 30px;
}

.dgk-review-header h2 {
    margin: 0 0 15px 0;
    color: white;
}

.dgk-review-meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    opacity: 0.9;
}

.dgk-review-questions {
    padding: 20px;
}

.dgk-review-question {
    padding: 25px;
    border-bottom: 1px solid var(--border);
}

.dgk-review-question:last-child {
    border-bottom: none;
}

.dgk-user-correct {
    background: linear-gradient(to right, rgba(39, 174, 96, 0.05), transparent);
    border-left: 4px solid var(--success);
}

.dgk-user-incorrect {
    background: linear-gradient(to right, rgba(231, 76, 60, 0.05), transparent);
    border-left: 4px solid var(--accent);
}

.dgk-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.dgk-result-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.dgk-user-correct .dgk-result-badge {
    background: var(--success);
}

.dgk-user-incorrect .dgk-result-badge {
    background: var(--accent);
}

.dgk-review-options {
    margin: 20px 0;
}

.dgk-review-option {
    padding: 15px;
    border: 2px solid var(--border);
    border-radius: 8px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.dgk-correct-answer {
    border-color: var(--success);
    background: rgba(39, 174, 96, 0.1);
}

.dgk-user-answer {
    border-color: var(--accent);
    background: rgba(231, 76, 60, 0.1);
}

.dgk-correct-badge,
.dgk-user-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    margin-left: auto;
}

.dgk-correct-badge {
    background: var(--success);
}

.dgk-user-badge {
    background: var(--accent);
}

.dgk-review-explanation {
    margin-top: 20px;
    padding: 15px;
    background: var(--light);
    border-radius: 8px;
    border-left: 4px solid var(--warning);
}

.dgk-review-explanation h4 {
    margin: 0 0 10px 0;
    color: var(--warning);
    font-size: 16px;
}

.dgk-review-actions {
    padding: 20px;
    background: var(--light);
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Leaderboard */
.dgk-leaderboard-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
    color: white;
    padding: 30px;
    border-radius: var(--radius) var(--radius) 0 0;
    text-align: center;
}

.dgk-leaderboard-header h2 {
    margin: 0 0 15px 0;
    color: white;
}

.dgk-date-selector {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.dgk-date-selector input[type="date"] {
    padding: 10px 15px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    min-width: 200px;
}

.dgk-leaderboard-content {
    padding: 30px;
    background: white;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
}

.dgk-leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.dgk-leaderboard-table th {
    background: var(--light);
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--primary);
    border-bottom: 2px solid var(--border);
}

.dgk-leaderboard-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border);
}

.dgk-leaderboard-table tr:hover {
    background: rgba(52, 152, 219, 0.05);
}

.dgk-rank-1 { background: linear-gradient(to right, rgba(255, 215, 0, 0.1), transparent); }
.dgk-rank-2 { background: linear-gradient(to right, rgba(192, 192, 192, 0.1), transparent); }
.dgk-rank-3 { background: linear-gradient(to right, rgba(205, 127, 50, 0.1), transparent); }

.dgk-rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--secondary);
    color: white;
    font-weight: bold;
    margin-right: 10px;
}

/* MathJax Styling */
.MathJax {
    font-size: 1.1em !important;
}

.mjx-chtml {
    outline: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .dgk-quiz-header {
        padding: 20px;
    }
    
    .dgk-quiz-title {
        font-size: 22px;
    }
    
    .dgk-question-content {
        padding: 20px;
    }
    
    .dgk-question-text {
        font-size: 18px;
        padding: 15px;
    }
    
    .dgk-form-row {
        grid-template-columns: 1fr;
    }
    
    .dgk-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    .dgk-btn {
        width: 100%;
    }
    
    .dgk-results-actions {
        flex-direction: column;
    }
    
    .dgk-results-actions .dgk-btn {
        width: 100%;
    }
    
    .dgk-social-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .dgk-social-btn {
        width: 100%;
        max-width: 250px;
    }
    
    .dgk-date-selector {
        flex-direction: column;
        align-items: center;
    }
    
    .dgk-date-selector input[type="date"] {
        width: 100%;
        max-width: 250px;
    }
    
    .dgk-leaderboard-table {
        display: block;
        overflow-x: auto;
    }
}
/* Add these styles to frontend.css */

.dgk-leaderboard-header-info {
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--secondary);
}

.dgk-leaderboard-header-info h3 {
    margin: 0 0 10px 0;
    color: var(--primary);
    font-size: 18px;
}

.dgk-leaderboard-stats {
    display: flex;
    gap: 15px;
    font-size: 14px;
    color: var(--text-light);
}

.dgk-stat {
    background: white;
    padding: 4px 10px;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.dgk-player-info {
    display: flex;
    flex-direction: column;
}

.dgk-player-time {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 2px;
}

.dgk-score-display {
    display: flex;
    align-items: center;
    gap: 2px;
    font-weight: bold;
}

.dgk-score {
    color: var(--success);
    font-size: 18px;
}

.dgk-total {
    color: var(--text-light);
    font-size: 14px;
}

.dgk-time-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--light);
    border-radius: 12px;
    font-size: 13px;
    font-family: 'Courier New', monospace;
    font-weight: bold;
}

.dgk-accuracy-meter {
    position: relative;
    height: 24px;
    background: var(--light);
    border-radius: 12px;
    overflow: hidden;
}

.dgk-accuracy-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--success), #2ecc71);
    transition: width 0.5s ease;
}

.dgk-accuracy-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 11px;
    font-weight: bold;
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    z-index: 1;
}

.dgk-leaderboard-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.dgk-leaderboard-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.dgk-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-light);
}

.dgk-legend-color {
    width: 15px;
    height: 15px;
    border-radius: 50%;
}

.dgk-rank-1-color { background: linear-gradient(135deg, #FFD700, #FFA500); }
.dgk-rank-2-color { background: linear-gradient(135deg, #C0C0C0, #A9A9A9); }
.dgk-rank-3-color { background: linear-gradient(135deg, #CD7F32, #8B4513); }

.dgk-leaderboard-note {
    background: var(--light);
    padding: 15px;
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

.dgk-leaderboard-note p {
    margin: 5px 0;
}

.dgk-empty-leaderboard {
    text-align: center;
    padding: 50px 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.dgk-empty-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.dgk-empty-leaderboard h3 {
    color: var(--primary);
    margin-bottom: 10px;
}

.dgk-empty-leaderboard p {
    color: var(--text-light);
    margin-bottom: 30px;
    font-size: 16px;
}

.dgk-empty-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Medal styles for top 3 ranks */
.dgk-rank-1 {
    background: linear-gradient(to right, rgba(255, 215, 0, 0.08), transparent);
    border-left: 4px solid #FFD700;
}

.dgk-rank-2 {
    background: linear-gradient(to right, rgba(192, 192, 192, 0.08), transparent);
    border-left: 4px solid #C0C0C0;
}

.dgk-rank-3 {
    background: linear-gradient(to right, rgba(205, 127, 50, 0.08), transparent);
    border-left: 4px solid #CD7F32;
}