/* ─── Unified Top Navigation Bar ─── */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px 40px;
    z-index: 9000;
    transition: all 0.3s ease;
    box-sizing: border-box;
    line-height: 1.7;
    font-family: 'Outfit', sans-serif;
}
.top-nav * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
.nav-logo {
    position: absolute;
    left: 40px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 1.4rem;
    transition: transform 0.2s;
}
.nav-logo:hover {
    transform: scale(1.05);
}
.nav-logo img {
    width: 32px;
    height: 32px;
}
.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}
.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    transition: color 0.2s;
}
.nav-links a:hover {
    color: var(--primary);
}
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    background: var(--brand-gradient);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}
.nav-links a:hover::after {
    width: 100%;
}
body.rtl .top-nav {
    font-family: 'Vazirmatn', sans-serif;
}
body.rtl .nav-logo {
    left: auto;
    right: 40px;
}
@media (max-width: 768px) {
    .top-nav {
        padding: 15px;
        justify-content: flex-end;
    }
    .nav-logo {
        left: 15px;
    }
    body.rtl .nav-logo {
        left: auto;
        right: 15px;
    }
    .nav-logo span {
        display: none;
    }
    .nav-links {
        gap: 15px;
    }
    .nav-links a {
        font-size: 0.9rem;
    }
}
@media (max-width: 480px) {
    .nav-links {
        gap: 10px;
    }
    .nav-links a {
        font-size: 0.8rem;
    }
}