header {
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    background-color: rgb(0 0 0 / 70%);
    position: relative;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

/* Desktop menu items - hidden by default, shown when menu is active */
nav a {
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: all 0.3s ease;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0;
    transform: translateY(-10px);
    display: none;
}

/* Show menu items when active */
nav.menu-active a {
    opacity: 1;
    transform: translateY(0);
    display: block;
}

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

/* Hamburger Menu - Always Visible */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    margin-right: auto;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Hamburger animation when active */
.menu-active .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.menu-active .hamburger span:nth-child(2) {
    opacity: 0;
}

.menu-active .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Desktop Styles - Show menu as overlay */
@media (min-width: 769px) {
    nav.menu-active {
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgb(0 0 0 / 95%);
        border-top: 1px solid var(--border);
        padding: var(--spacing-md);
    }
    
    nav.menu-active a {
        text-align: center;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--border);
        width: 100%;
    }
    
    nav.menu-active a:last-child {
        border-bottom: none;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    nav {
        padding: var(--spacing-sm);
    }
    
    nav.menu-active {
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgb(0 0 0 / 95%);
        border-top: 1px solid var(--border);
        padding: var(--spacing-sm);
    }
    
    nav.menu-active a {
        display: block;
        padding: var(--spacing-sm);
        border: 1px solid var(--border);
        margin-bottom: var(--spacing-xs);
        text-align: center;
        width: 100%;
    }
    
    nav.menu-active a:last-child {
        margin-bottom: 0;
    }
    
    nav.menu-active a:hover {
        background: var(--accent);
        color: var(--bg-primary);
    }
}

/* Ensure proper spacing for mobile */
@media (max-width: 480px) {
    nav a {
        font-size: 0.85rem;
        padding: 0.875rem var(--spacing-sm);
    }
}