nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: padding var(--transition-normal);
}

.nav-container {
    max-width: 850px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-6);
    background: var(--bg-nav);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--nav-border);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

/* Logo "ZH ." style */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.logo span {
    color: var(--text-primary);
}

.logo-dot {
    color: var(--accent-orange) !important;
    margin-left: 2px;
}

/* Nav Menu Links matching portfolio style */
.nav-links {
    display: none;
    list-style: none;
    align-items: center;
    gap: var(--space-6);
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: color var(--transition-fast);
    padding: var(--space-1) 0;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Navbar Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Minimalist Theme Toggle */
.theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

.theme-toggle:hover {
    color: var(--text-primary);
}

/* Mobile Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 18px;
    height: 12px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: var(--radius-full);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
}

/* Slide out mobile drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: var(--space-20) var(--space-6) var(--space-6) var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    transition: right var(--transition-slow);
}

.mobile-drawer.active {
    right: 0;
}

.mobile-drawer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.mobile-drawer-links a {
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    display: block;
    padding: var(--space-2) 0;
}

.mobile-drawer-links a:hover {
    color: var(--accent-orange);
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.drawer-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Responsive adjustment */
@media (min-width: 768px) {
    nav {
        padding: var(--space-6) 0;
    }
    .nav-links {
        display: flex;
    }
    .hamburger {
        display: none;
    }
}