/* ── Series ──────────────────────────────────────────────── */
.series-box {
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    background: var(--accent-dim);
    padding: 1rem 1.25rem;
    margin-bottom: 2rem;
}

.series-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.65rem;
}

.series-list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: series-counter;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.series-item {
    counter-increment: series-counter;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding-left: 1.5rem;
    position: relative;
}

.series-item::before {
    content: counter(series-counter) ".";
    position: absolute;
    left: 0;
    color: var(--text-dim);
}

.series-item a {
    color: var(--text);
    text-decoration: none;
}

.series-item a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.series-item.series-current .series-item-title {
    color: var(--accent);
    font-weight: 500;
}

/* ── Series prev/next nav ────────────────────────────────── */
.series-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.series-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    max-width: 45%;
    text-decoration: none;
}

.series-nav-next {
    text-align: right;
    margin-left: auto;
}

.series-nav-dir {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.series-nav-title {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text);
    transition: color 0.2s;
}

.series-nav-link:hover .series-nav-title {
    color: var(--accent);
}