/* ==========================================================================
   Series Navigation Styles
   ========================================================================== */

.series-nav {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.series-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.series-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
}

.series-title svg {
    color: var(--cat-color, var(--color-accent));
}

.series-count {
    font-size: 13px;
    color: var(--color-text-muted);
    padding: 2px 10px;
    background: var(--color-bg);
    border-radius: 20px;
}

/* Series List */
.series-list {
    list-style: none;
    counter-reset: series-counter;
    margin-bottom: var(--spacing-lg);
}

.series-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    counter-increment: series-counter;
}

.series-item::before {
    content: counter(series-counter) ".";
    flex-shrink: 0;
    width: 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
}

.series-item.current {
    background: linear-gradient(90deg, var(--cat-color, var(--color-accent)), transparent);
    background-size: 4px 100%;
    background-repeat: no-repeat;
    padding-left: var(--spacing-md);
    margin-left: calc(var(--spacing-md) * -1);
}

.series-item.current::before {
    color: var(--cat-color, var(--color-accent));
    font-weight: 600;
}

.series-item-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}

.series-item-link {
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.series-item-link:hover {
    color: var(--cat-color, var(--color-accent));
}

/* Responsive */