/* Styles pour le header */
.header {
    background-color: var(--dark-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1030;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    display: flex;
    align-items: center;
}

.navbar-brand img {
    margin-right: 0.5rem;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: white !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 80%;
}

.navbar-nav .nav-link.active {
    color: var(--accent-color) !important;
}

.navbar-nav .nav-link.active::after {
    width: 80%;
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.1);
}

.navbar-toggler:focus {
    box-shadow: none;
    border-color: var(--accent-color);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}