/* ============================================
   NAVIGATION MODERNE
   ============================================ */

.navbar-brand {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--blue-cyan), var(--blue-electric));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: 0 0 20px rgba(0, 204, 255, 0.5);
}

.sidebar {
    background: linear-gradient(180deg, rgba(6, 11, 38, 0.97) 0%, rgba(1, 3, 17, 0.98) 100%);
    backdrop-filter: blur(15px);
    border-right: 1px solid rgba(0, 204, 255, 0.35);
    box-shadow: 6px 0 30px rgba(0, 0, 0, 0.6), inset -1px 0 0 rgba(0, 204, 255, 0.1);
}

.nav-scrollable {
    background: transparent;
    padding: 1.25rem 0 1.5rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    padding: 1rem 1.5rem !important;
    margin: 0.5rem 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.85rem;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(180deg, var(--blue-cyan), var(--blue-electric));
    transform: scaleY(0);
    transition: transform 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 204, 255, 0.5);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary) !important;
    transform: translateX(5px);
}

.nav-link:hover::before {
    transform: scaleY(1);
}

.nav-link.active {
    background: linear-gradient(135deg, rgba(0, 204, 255, 0.2), rgba(0, 0, 255, 0.2));
    color: var(--text-primary) !important;
    border-left: 4px solid var(--blue-cyan);
    box-shadow: 0 4px 15px rgba(0, 204, 255, 0.4);
}

.nav-link.active::before {
    transform: scaleY(1);
}

/* Logo devant le nom dans l'en-tête */
.brand-mark {
    width: 1.9rem;
    height: 1.9rem;
    margin-right: 0.7rem;
    vertical-align: -0.5rem;
    filter: drop-shadow(0 0 8px rgba(0, 204, 255, 0.45));
}