/* --- Header Container --- */
.main-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: all 0.3s ease;
    background: transparent;
}

.main-header.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    padding: var(--space-xs) 0;
}

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

/* Logo */
.logo img {
    height: 48px;
}

/* Navigation */
.navbar {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    color: var(--color-white);
    font-weight: 500;
    font-size: 0.95rem;
    opacity: 0.9;
}

.nav-link:hover {
    opacity: 1;
    color: var(--color-accent);
}

.main-header.scrolled .nav-link {
    color: var(--color-primary);
}

.main-header.scrolled .nav-link:hover {
    color: var(--color-accent);
}

/* Contact Button in Nav */
.btn-contact {
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-contact:hover {
    background-color: #c90500;
    transform: translateY(-1px);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 1100;
}

.bar {
    width: 28px;
    height: 2px;
    background-color: var(--color-white);
    transition: 0.3s;
    border-radius: 2px;
}

.main-header.scrolled .bar {
    background-color: var(--color-primary);
}