/* ============================================
   Engagement System Styles
   ============================================ */

/* Stats Widget */
.stats-widget {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 2px solid var(--primary);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.stats-widget.pulse {
    animation: widgetPulse 0.5s ease;
}

@keyframes widgetPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.stats-widget.minimized .stats-content {
    display: none;
}

.stats-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.stats-icon {
    font-size: 1.5rem;
}

.stats-title {
    flex: 1;
    margin-left: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stats-minimize {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.stats-minimize:hover {
    background: var(--bg-tertiary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.level-progress {
    margin-top: 1rem;
}

.progress-bar {
    background: var(--bg-tertiary);
    height: 10px;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    height: 100%;
    border-radius: 5px;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    display: block;
}

/* Daily Challenge Banner */
.daily-challenge-banner {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(236, 72, 153, 0.1));
    border: 2px solid var(--warning);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 2rem;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.daily-challenge-banner.completed {
    border-color: var(--success);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(6, 182, 212, 0.1));
}

.challenge-content {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
}

.challenge-icon {
    font-size: 2.5rem;
}

.challenge-info {
    flex: 1;
}

.challenge-title {
    font-weight: 700;
    color: var(--warning);
    margin-bottom: 0.25rem;
}

.challenge-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.challenge-progress-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.progress-bar-small {
    flex: 1;
    background: var(--bg-tertiary);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
}

.progress-label-small {
    font-size: 0.8rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.challenge-reward {
    text-align: center;
}

.reward-amount {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--warning);
}

.reward-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Level Up Notification */
.level-up-notification {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    z-index: 10000;
    background: var(--bg-secondary);
    border: 3px solid var(--success);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.level-up-notification.show {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.level-up-content {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.level-up-icon {
    font-size: 4rem;
    animation: rotate360 1s ease;
}

@keyframes rotate360 {
    from { transform: rotate(0deg) scale(0); }
    to { transform: rotate(360deg) scale(1); }
}

.level-up-text h3 {
    font-size: 1.8rem;
    color: var(--success);
    margin-bottom: 0.5rem;
}

.level-up-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Achievement Popup */
.achievement-popup {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    background: var(--bg-secondary);
    border: 2px solid var(--warning);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    transform: translateX(500px);
    opacity: 0;
    transition: all 0.5s ease;
}

.achievement-popup.show {
    transform: translateX(0);
    opacity: 1;
}

.achievement-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.achievement-icon-large {
    font-size: 3rem;
    animation: bounce 0.5s ease;
}

.achievement-unlocked {
    color: var(--warning);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.achievement-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.achievement-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.achievement-reward {
    font-size: 0.9rem;
    color: var(--success);
    font-weight: 600;
}

/* Exit Intent Modal */
.exit-intent-modal .modal-content {
    animation: shakeModal 0.5s ease;
}

@keyframes shakeModal {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.exit-incentive {
    margin: 2rem 0;
}

.incentive-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.incentive-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.incentive-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.incentive-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Session Progress Bar */
.session-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--bg-tertiary);
    z-index: 9999;
}

.session-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    width: 0%;
    transition: width 1s linear;
}

/* Responsive Engagement Styles */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .challenge-content {
        grid-template-columns: auto 1fr;
    }
    
    .challenge-reward {
        grid-column: 2;
        text-align: right;
        margin-top: 0.5rem;
    }
    
    .level-up-content {
        flex-direction: column;
        text-align: center;
    }
    
    .achievement-popup {
        right: 10px;
        left: 10px;
        max-width: calc(100% - 20px);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .stat-value {
        font-size: 1.2rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .challenge-icon {
        font-size: 2rem;
    }
}