/* Smart Reading Progress Tracker Styles */

/* Progress Container */
.reading-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    pointer-events: none;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Main Progress Bar */
.reading-progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    overflow: hidden;
    transition: all 0.3s ease;
}

.reading-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    border-radius: 0 2px 2px 0;
    position: relative;
}

.reading-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3));
    animation: shimmer 2s infinite;
}

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

/* Reading Time Indicator */
.reading-time-indicator {
    position: absolute;
    top: 8px;
    right: 20px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    animation: slideInFromTop 0.5s ease;
}

.reading-time-indicator:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.reading-time-icon {
    font-size: 14px;
}

/* Reading Stats Indicator */
.reading-stats-indicator {
    position: absolute;
    top: 8px;
    left: 20px;
    background: rgba(103, 126, 234, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    animation: slideInFromTop 0.5s ease 0.2s both;
}

.reading-percentage {
    font-size: 14px;
}

/* Completion State */
.reading-progress-bar.reading-completed .reading-progress-fill {
    background: linear-gradient(90deg, #4caf50, #8bc34a);
    animation: completionPulse 0.6s ease;
}

@keyframes completionPulse {
    0% { transform: scaleY(1); }
    50% { transform: scaleY(1.5); }
    100% { transform: scaleY(1); }
}

/* Completion Notification */
.reading-completion-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1001;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: none;
}

.reading-completion-notification.show {
    transform: translateX(0);
    opacity: 1;
}

.completion-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 200px;
}

.completion-icon {
    font-size: 20px;
    margin-bottom: 4px;
}

.completion-text {
    font-weight: 600;
    font-size: 14px;
}

.completion-stats {
    font-size: 12px;
    opacity: 0.8;
}

/* Animations */
@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .reading-time-indicator,
    .reading-stats-indicator {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        margin: 8px;
        display: inline-block;
    }
    
    .reading-progress-container {
        padding-bottom: 50px;
    }
    
    .reading-completion-notification {
        bottom: 10px;
        right: 10px;
        left: 10px;
        transform: translateY(100px);
    }
    
    .reading-completion-notification.show {
        transform: translateY(0);
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .reading-progress-bar {
        background: rgba(0, 0, 0, 0.3);
    }
    
    .reading-time-indicator {
        background: rgba(255, 255, 255, 0.1);
        color: white;
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .reading-progress-fill,
    .reading-time-indicator,
    .reading-stats-indicator,
    .reading-completion-notification {
        animation: none;
        transition: none;
    }
}

/* Print Styles */
@media print {
    .reading-progress-container,
    .reading-completion-notification {
        display: none !important;
    }
}

/* Hover Effects for Desktop */
@media (hover: hover) {
    .reading-progress-bar:hover {
        height: 6px;
    }
    
    .reading-progress-bar:hover .reading-progress-fill {
        box-shadow: 0 0 20px rgba(103, 126, 234, 0.6);
    }
}

/* Loading State */
.reading-progress-bar.loading .reading-progress-fill {
    background: linear-gradient(90deg, #f0f0f0, #e0e0e0);
    animation: loadingShimmer 1.5s infinite;
}

@keyframes loadingShimmer {
    0% { background-position: -200px 0; }
    100% { background-position: 200px 0; }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .reading-progress-fill {
        background: #000;
    }
    
    .reading-time-indicator,
    .reading-stats-indicator {
        background: #000;
        color: #fff;
        border: 2px solid #fff;
    }
}