* { margin: 0; padding: 0; box-sizing: border-box; }

body { 
    font-family: ui-sans-serif, system-ui, -apple-system, sans-serif; 
    background-color: var(--bg-main); 
    color: var(--text-main); 
    min-height: 100vh; 
    display: flex; 
    flex-direction: column;
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* NAVIGATION & FOOTER */
nav, footer { 
    background-color: var(--bg-nav) !important; 
    border-color: var(--border-color) !important; 
    transition: background-color 0.3s ease;
}

nav { border-bottom: 1px solid var(--border-color); padding: 1rem 0; position: relative; z-index: 50; }
footer { border-top: 1px solid var(--border-color); padding: 4rem 0 2rem; margin-top: auto; }

/* TYPOGRAPHIE NAV/FOOTER */
.nav-links a, .nav-btn, footer p, footer a { color: var(--text-muted); text-decoration: none; }
.nav-links a:hover, .nav-btn:hover, footer a:hover { color: var(--violet); }
h1, h2, h3, h4, .text-dark { color: var(--text-main); }

/* LAYOUT */
.max-w-6xl { max-width: 72rem; margin: 0 auto; }
.container { width: 100%; padding: 0 1.5rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.grid { display: grid; }

/* THEME SWITCH */
.theme-switch {
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    border: 1px solid var(--border-color);
    background: var(--bg-nav);
    color: var(--text-main);
    transition: 0.2s;
}
.theme-switch:hover { background: var(--violet-soft); }

/* --- NAVIGATION --- */
nav { 
    background-color: var(--bg-nav); 
    border-bottom: 1px solid var(--border-color); 
    padding: 1rem 0; 
    position: relative; 
    z-index: 50; 
}

.nav-links { display: none; gap: 1.5rem; align-items: center; }
@media (min-width: 768px) { .nav-links { display: flex; } }

/* --- SYSTÈME DE DROPDOWN (Le correctif) --- */
.dropdown { position: relative; display: inline-block; }

.dropdown:hover .dropdown-content { 
    display: block !important; /* Force l'affichage au survol */
}

.nav-btn { 
    display: flex; 
    align-items: center; 
    gap: 0.25rem; 
    cursor: pointer; 
    border: none; 
    background: none; 
    font-size: 0.875rem; 
    font-weight: 700;
    font-family: inherit;
    color: var(--text-muted);
}