/* Amélioration de la navbar fixe avec fond BLANC */
.welcome-navbar {
    position: sticky !important;
    top: 0 !important;
    z-index: 999 !important;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: saturate(180%) blur(20px) !important;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08) !important;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08) !important;
}

.welcome-navbar.is-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12) !important;
}

/* Texte sombre pour contraste sur fond blanc */
.welcome-navbar .welcome-logo,
.welcome-navbar .welcome-navlinks a,
.welcome-navbar .welcome-burger {
    color: #0f172a !important;
}

.welcome-navbar .welcome-navlinks a:hover {
    color: #2563eb !important;
}

/* Boutons dans la navbar */
.welcome-navbar .welcome-button-primary {
    background: linear-gradient(135deg, #2563eb, #1d4ed8) !important;
    color: #ffffff !important;
    border: none !important;
}

.welcome-navbar .welcome-button-primary:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3) !important;
}

.welcome-navbar .welcome-button-secondary {
    background: rgba(15, 23, 42, 0.05) !important;
    color: #0f172a !important;
    border: 1px solid rgba(15, 23, 42, 0.1) !important;
}

.welcome-navbar .welcome-button-secondary:hover {
    background: rgba(15, 23, 42, 0.08) !important;
    border-color: rgba(15, 23, 42, 0.15) !important;
}