/* Docs — single article with sidebar. */

.esp-docs-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--space-7);
    align-items: start;
}

.esp-docs-sidebar {
    position: sticky;
    top: 96px;
    font-size: var(--fs-sm);
}
.esp-docs-sidebar nav > ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}
.esp-docs-sidebar__group-title {
    display: block;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}
.esp-docs-sidebar__group-title.is-current {
    color: var(--primary);
}
.esp-docs-sidebar__children {
    list-style: none;
    padding-left: 0;
    border-left: 2px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.esp-docs-sidebar__children a {
    display: block;
    padding: 0.4rem 0.75rem;
    color: var(--text-muted);
    border-left: 2px solid transparent;
    margin-left: -2px;
    transition: color var(--duration-fast) var(--ease),
                border-color var(--duration-fast) var(--ease),
                background var(--duration-fast) var(--ease);
}
.esp-docs-sidebar__children a:hover {
    color: var(--text);
}
.esp-docs-sidebar__children a.is-current {
    color: var(--primary);
    border-left-color: var(--primary);
    background: var(--primary-soft);
    font-weight: 600;
}

.esp-docs-article {
    min-width: 0;
}
.esp-docs-article__head {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--border);
}
.esp-docs-article__head h1 {
    margin-top: var(--space-2);
    font-size: var(--fs-h2);
}

@media (max-width: 860px) {
    .esp-docs-layout {
        grid-template-columns: 1fr;
    }
    .esp-docs-sidebar {
        position: static;
        margin-bottom: var(--space-5);
        padding-bottom: var(--space-5);
        border-bottom: 1px solid var(--border);
    }
}