.mb-tools-container {
    max-width: 800px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

.mb-tool {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.mb-tool:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.tool-header {
    padding: 20px;
    cursor: pointer;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
    position: relative;
    transition: background-color 0.3s ease;
}

.tool-header:hover {
    background: #e9ecef;
}

.tool-title {
    margin: 0 0 8px 0;
    font-size: 1.25em;
    font-weight: 600;
    color: #333;
}

.tool-description {
    margin: 0;
    color: #666;
    font-size: 0.9em;
}

.expand-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5em;
    font-weight: 300;
    color: #666;
    transition: transform 0.3s ease;
}

.mb-tool.active .expand-icon {
    transform: translateY(-50%) rotate(45deg);
}

.tool-content {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.mb-tool.active .tool-content {
    padding: 20px;
    max-height: 2000px;
}

.input-group {
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.input-group label {
    flex: 0 0 100%;
    margin-bottom: 4px;
    font-weight: 500;
    color: #333;
}

.input-group input,
.input-group select {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    min-width: 120px;
}

.unit-label {
    padding: 0 12px;
    font-weight: 500;
    color: #666;
    min-width: 60px;
}

.conversion-row {
    display: flex;
    gap: 16px;
}

.conversion-row .input-group {
    flex: 1;
}

.unit-toggle,
.weight-toggle,
.distance-toggle,
.width-toggle {
    margin-bottom: 16px;
}

.toggle-buttons {
    display: inline-flex;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
}

.toggle-btn,
.load-toggle,
.dimension-toggle {
    padding: 8px 16px;
    border: none;
    background: #f8f9fa;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.toggle-btn.active,
.load-toggle.active,
.dimension-toggle.active {
    background: #008345;
    color: white;
}

.toggle-btn:hover,
.load-toggle:hover,
.dimension-toggle:hover {
    background: #e9ecef;
}

.toggle-btn.active:hover,
.load-toggle.active:hover,
.dimension-toggle.active:hover {
    background: #006633;
}

.calculate-btn {
    background: #008345;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
    width: 100%;
    margin-top: 8px;
}

.calculate-btn:hover {
    background: #006633;
}

.result {
    margin-top: 20px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 4px;
    border-left: 4px solid #008345;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.input-disabled {
    background-color: #f8f9fa;
    color: #6c757d;
    cursor: not-allowed;
}

/* Responsive Design */
@media (max-width: 768px) {
    .conversion-row {
        flex-direction: column;
        gap: 0;
    }
    
    .input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .input-group input,
    .input-group select {
        flex: none;
        width: 100%;
    }
    
    .unit-label {
        align-self: flex-start;
        padding: 8px 0;
    }
}