/* Shared site header: wordmark (links home) + primary nav. Used on every page. */

.masthead {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--rule);
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.wordmark {
    font-family: 'Fraunces', serif;
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: 0.01em;
    color: var(--ink);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

/* The logo is a full-bleed square, so round its corners like an app icon. */
.wordmark-logo {
    display: block;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    margin-right: 10px;
}

.wordmark span { color: var(--accent); }

.site-nav {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.site-nav a {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-faint);
    text-decoration: none;
    display: inline-block;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease;
}

.site-nav a:hover { color: var(--accent); }

.site-nav a[aria-current] {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

@media (max-width: 480px) {
    .site-nav { gap: 14px; }
    .site-nav a { letter-spacing: 0.02em; }
}