/* ==========================================================================
   2. TOP NAVIGATION BAR SYSTEM (Upper Right Alignment)
   ========================================================================== */
.main-header {
    width: 100%;
    background-color: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Forces the navigation utilities completely to the upper right */
.nav-right {
    margin-left: auto; 
}

.nav-links {
    display: flex;
    gap: 1rem;
    list-style: none;
    align-items: center;
}

.nav-links li a {
    display: inline-block;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    transition: background-color 0.15s, color 0.15s;
}

.nav-links li a:hover {
    background-color: #1e1f20;
    color: var(--text-primary);
}

.nav-links li a.active {
    color: var(--google-link-blue);
    background-color: rgba(138, 180, 248, 0.12);
    font-weight: 700;
}