header {
    background:
        linear-gradient(135deg, rgba(229, 170, 30, 0.94) 0%, rgba(192, 189, 21, 0.9) 100%),
        url("../img/dump_truck.jpg") center/cover no-repeat;
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: #332d20;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.3s, color 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
    color: #0d47a1;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}