/**
 * SHARED LEARNING MODULE STYLES
 * Used across all learning units
 * Modular and isolated from main site styles
 */

/* Reset for learning module container */
.unit-container * {
    box-sizing: border-box;
}

/* Smooth scrolling within learning modules */
.unit-container {
    scroll-behavior: smooth;
}

/* Common button styles */
.learning-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

/* Responsive design for learning modules */
@media (max-width: 768px) {
    .unit-progress {
        flex-direction: column !important;
        gap: 10px !important;
    }
    
    .simulation-iframe {
        height: 400px !important;
    }
    
    .message {
        max-width: 90% !important;
    }
    
    .chat-input-group {
        flex-direction: column !important;
    }
    
    .chat-input {
        width: 100% !important;
    }
}

@media (max-width: 480px) {
    .unit-container {
        padding: 10px !important;
    }
    
    .simulation-container,
    .observation-section,
    .chat-container {
        padding: 15px !important;
    }
    
    .unit-header {
        padding: 20px !important;
    }
}

/* Accessibility improvements */
.btn:focus,
.chat-input:focus,
.observation-input:focus {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* Loading states */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Error states */
.error-message {
    background: #f44336;
    color: white;
    padding: 15px 20px;
    border-radius: 10px;
    margin: 20px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.error-message::before {
    content: '⚠️';
    font-size: 24px;
}

/* Success states */
.success-message {
    background: #4caf50;
    color: white;
    padding: 15px 20px;
    border-radius: 10px;
    margin: 20px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.success-message::before {
    content: '✅';
    font-size: 24px;
}

/* Print styles - hide interactive elements when printing */
@media print {
    .btn,
    .chat-input-group,
    .simulation-container,
    .back-link {
        display: none !important;
    }
    
    .observation-input {
        border: 1px solid #000 !important;
        background: white !important;
    }
    
    .chat-messages {
        border: 1px solid #000 !important;
        height: auto !important;
    }
}

/* Tooltip styles */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 1000;
}

[data-tooltip]:hover::after {
    opacity: 1;
}