/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: var(--z-nav);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(20px) saturate(150%);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    z-index: var(--z-nav);
}

.nav-logo img {
    height: 36px;
    width: auto;
}

.nav-logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Desktop Nav Links */
.nav-links {
    display: none;
    align-items: center;
    gap: var(--space-xl);
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }
}

.nav-link {
    font-family: var(--font-accent);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-brand);
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

/* Hamburger */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 6px;
    z-index: var(--z-nav);
    cursor: pointer;
}

@media (min-width: 1024px) {
    .hamburger {
        display: none;
    }
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu Overlay */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    z-index: calc(var(--z-nav) - 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu .nav-link {
    font-size: var(--text-lg);
    letter-spacing: 0.2em;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-smooth);
}

.mobile-menu.open .nav-link {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu.open .nav-link:nth-child(1) { transition-delay: 100ms; }
.mobile-menu.open .nav-link:nth-child(2) { transition-delay: 150ms; }
.mobile-menu.open .nav-link:nth-child(3) { transition-delay: 200ms; }
.mobile-menu.open .nav-link:nth-child(4) { transition-delay: 250ms; }
.mobile-menu.open .nav-link:nth-child(5) { transition-delay: 300ms; }

.mobile-menu .social-links {
    margin-top: var(--space-2xl);
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-smooth) 400ms;
}

.mobile-menu.open .social-links {
    transform: translateY(0);
    opacity: 1;
}