/* nav.css */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    transition: background var(--transition-slow), backdrop-filter var(--transition-slow),
        border-bottom-color var(--transition-slow);
    border-bottom: 1px solid transparent;
}

.nav.scrolled {
    background: rgba(7, 11, 20, 0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom-color: var(--border);
}

.nav-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.nav-logo-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(0.85);
    }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition);
}

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Mobile hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

/* Mobile menu overlay */
.nav-mobile {
    display: none;
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-nav) - 1);
    background: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.nav-mobile.open {
    display: flex;
    opacity: 1;
    transform: none;
}

.nav-mobile a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

@media (max-width: 768px) {

    .nav-links,
    .nav-cta .btn-ghost {
        display: none;
    }

    .nav-hamburger {
        display: flex;
    }
}