Fix footer logo to match header style

- Use same text logo as header (Navier Instruments)
- Adjusted font size to 1.5rem
- White text with green accent for dark background

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

theme/footer.php

@@ -7,13 +7,11 @@
                     <!-- Brand Column -->
                     <div class="footer-brand">
                         <div class="footer-logo">
-                            <?php if (has_custom_logo()) : ?>
-                                <?php the_custom_logo(); ?>
-                            <?php else : ?>
+                            <a href="<?php echo esc_url(home_url('/')); ?>" rel="home">
                                 <span class="footer-logo-text">
                                     Navier<span>Instruments</span>
                                 </span>
-                            <?php endif; ?>
+                            </a>
                         </div>
                         <p>
                             <?php echo esc_html(get_theme_mod('navier_footer_description', __('Spécialiste du prélèvement d\'air en milieu industriel et laboratoire. Innovation, qualité et éco-responsabilité au service de votre santé.', 'navier-instruments'))); ?>

theme/style.css

@@ -1106,7 +1106,7 @@ img {
 
 .footer-logo-text {
     font-family: var(--font-heading);
-    font-size: 1.25rem;
+    font-size: 1.5rem;
     font-weight: 700;
     color: var(--navier-white);
 }
@@ -1115,6 +1115,10 @@ img {
     color: var(--navier-secondary);
 }
 
+.footer-logo a {
+    text-decoration: none;
+}
+
 .footer-brand p {
     font-size: 0.9375rem;
     line-height: 1.7;