/* ==========================================================================
   Site Navigation — shared fixed header used on every page.
   Slides out of view on scroll-down, fades back in on scroll-up.
   Load this AFTER styles/style.css.
   ========================================================================== */

body {
    padding-top: 74px;
}

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 20px;
    background: rgba(8, 8, 8, 0.75);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--light-gray);
    transition: transform 0.35s ease, opacity 0.35s ease;
    transform: translateY(0);
    opacity: 1;
}

.site-nav.nav-hidden {
    transform: translateY(-100%);
    opacity: 0;
}

.site-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #FFF;
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    padding: 9px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-nav-link:hover {
    color: var(--primary-blue);
}

.site-nav-link.active {
    color: var(--secondary-orange);
    border-color: var(--primary-blue);
    box-shadow: 0 0 14px rgba(5, 155, 255, 0.35);
}

.site-nav-link.active:hover {
    color: var(--secondary-orange);
}

.site-nav-brand {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
}

.site-nav-logo {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    object-fit: contain;
}

@media (max-width: 480px) {
    .site-nav {
        gap: 2px;
        padding: 12px 8px;
    }
    .site-nav-link {
        padding: 8px 12px;
        font-size: 0.75rem;
    }
    .site-nav-logo {
        width: 16px;
        height: 16px;
    }
}