/* =====================================================
   NAVBAR - FIXED: Smooth, No Jitter
   ===================================================== */

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--gradient-nav);
    padding: 0 20px;
    position: sticky;
    top: 62px;
    z-index: 999;
    min-height: 50px;
    /* GPU Acceleration - Proper Way */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 5px;
    width: 100%;
}

.hamburger-btn {
    display: none;
    color: #fff;
    font-size: 22px;
    padding: 12px;
    border-radius: 8px;
    transition: background 0.2s ease;
    /* Prevent layout shift */
    transform: translateZ(0);
}

.hamburger-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.nav-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    /* Smooth scroll for overflow */
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.nav-links li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    position: relative;
    /* Smooth transition - use transform instead of width */
    transition: background 0.2s ease, color 0.2s ease;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: #fff;
    border-radius: 3px 3px 0 0;
    /* Use transform for smooth animation */
    transform: translateX(-50%) scaleX(0);
    transform-origin: center;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
    transform: translateX(-50%) scaleX(1);
    width: 80%;
}

.nav-links li a:hover {
    background: rgba(255, 255, 255, 0.12);
}

.nav-links li a.active {
    background: rgba(255, 255, 255, 0.18);
}

.nav-links li a i {
    font-size: 13px;
    opacity: 0.9;
}

/* Navbar Flag Emoji */
.nav-links li a .nav-flag {
    font-size: 16px;
    line-height: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .main-nav {
        padding: 0 14px;
        top: 56px;
        min-height: 46px;
    }
    
    .hamburger-btn {
        display: flex;
    }
    
    .nav-links li a {
        padding: 12px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .main-nav {
        padding: 0 10px;
        top: 52px;
        min-height: 44px;
    }
    
    .nav-links li a {
        padding: 10px 12px;
        font-size: 12px;
    }
}