/* Interactive Learning Components Styles */

/* Physics Simulation Container */
.simulation-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.simulation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.simulation-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.simulation-title::before {
    content: '🔬';
    font-size: 1.5rem;
}

.simulation-canvas {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    margin-bottom: 1rem;
}

.simulation-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.simulation-controls button {
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.simulation-controls button:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.simulation-controls .start-btn {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.simulation-controls .stop-btn {
    background: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

/* Video Embed Container */
.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    margin: 2rem 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
}

.video-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.video-header::before {
    content: '📹';
    font-size: 1.3rem;
}

.video-description {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Interactive Diagram */
.diagram-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
    text-align: center;
}

.diagram-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.diagram-caption {
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
}

/* Concept Card */
.concept-card {
    background: linear-gradient(135deg, var(--card-bg), var(--bg-secondary));
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.concept-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.concept-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.concept-title::before {
    content: '💡';
    font-size: 1.5rem;
}

.concept-content {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.concept-formula {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    color: var(--primary-color);
    text-align: center;
    border: 1px solid var(--border-color);
}

/* Interactive Example Box */
.example-box {
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
}

.example-header {
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.example-problem {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.example-solution {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), transparent);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 1rem;
    border-radius: 8px;
    color: var(--text-secondary);
}

.example-solution strong {
    color: var(--success-color);
}

/* Practice Problem */
.practice-problem {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
}

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

.problem-number {
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.problem-difficulty {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.problem-difficulty.easy {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.problem-difficulty.medium {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.problem-difficulty.hard {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.problem-statement {
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.show-solution-btn {
    padding: 0.5rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.show-solution-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.problem-solution {
    display: none;
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
}

.problem-solution.visible {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* Tab Container for Different Content Types */
.content-tabs {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin: 2rem 0;
    overflow: hidden;
}

.tab-buttons {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.tab-button:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab-button.active {
    color: var(--primary-color);
    background: var(--card-bg);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
}

.tab-content {
    padding: 2rem;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .simulation-container,
    .video-wrapper,
    .diagram-container,
    .concept-card,
    .practice-problem {
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .simulation-controls {
        flex-direction: column;
    }
    
    .simulation-controls button {
        width: 100%;
    }
    
    .tab-buttons {
        flex-direction: column;
    }
    
    .tab-button {
        text-align: left;
        border-bottom: 1px solid var(--border-color);
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}