/* ============================================
   IKIbrain — Docs
   Caricato solo sulle pagine /docs/*
   ============================================ */

/* --- Docs Hub (pagina indice) --- */
.docs-section {
    padding: 3rem 0 4rem;
}

.docs-hub {
    padding: 3rem 0 5rem;
}

.docs-hub__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

.docs-hub__card {
    display: flex;
    flex-direction: column;
    padding: 2rem 1.75rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg);
    text-decoration: none;
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.docs-hub__card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--dark);
}

.docs-hub__icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    line-height: 1;
}

.docs-hub__card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.4rem;
}

.docs-hub__card p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
    flex: 1;
}

.docs-hub__card .docs-hub__arrow {
    margin-top: 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: color var(--transition);
}

.docs-hub__card:hover .docs-hub__arrow {
    color: var(--dark);
}

/* Override padding di default delle section (style.css: 5rem → 1rem) */
.docs-section section {
    padding: 1rem 0;
}

/* --- Pagine dettaglio docs --- */

/* Sostituisce il page-hero: aggiunge padding top direttamente alla sezione */
.docs-page {
    padding-top: calc(var(--nav-height) + 2.5rem);
    padding-bottom: 4rem;
}

/* Header compatto nel colonna contenuto */
.docs-page-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1.5px solid var(--border);
}

.docs-breadcrumb {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
    letter-spacing: 0.01em;
}

.docs-breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.docs-breadcrumb a:hover {
    color: var(--dark);
}

.docs-breadcrumb .sep {
    margin: 0 0.35em;
    opacity: 0.5;
}

.docs-page-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin-bottom: 0.35rem;
    color: var(--darker);
}

.docs-page-header .docs-lead {
    font-size: 0.92rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.6;
}

/* --- Article layout (2 colonne) --- */
.ikibrain-docs {
    display: flex;
    gap: 2.5rem;
    align-items: flex-start;
}

.ikibrain-docs-sidebar {
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--nav-height) + 24px);
    align-self: flex-start;
    max-height: calc(100vh - var(--nav-height) - 40px);
    overflow-y: auto;
}

.ikibrain-docs-sidebar .nav-link {
    font-size: 0.84rem;
    padding: 0.28rem 0.75rem;
    color: var(--text-light);
    border-radius: var(--radius);
    line-height: 1.5;
}

.ikibrain-docs-sidebar .nav-link:hover {
    background: var(--bg-alt);
    color: var(--dark);
}

.ikibrain-docs-sidebar .nav-link.active {
    background: #f0f0f0;
    color: var(--dark);
    font-weight: 600;
}

.ikibrain-docs-nav-section {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    padding: 0 0.75rem 0.2rem;
    margin-top: 1.5rem;
}

.ikibrain-docs-sidebar .ikibrain-docs-nav-section:first-child {
    margin-top: 0;
}

.ikibrain-docs-content {
    flex: 1;
    min-width: 0;
}

.ikibrain-docs-content section {
    scroll-margin-top: calc(var(--nav-height) + 24px);
}

.docs-section section.mt-5 {
    margin-top: 1rem !important;
}

.ikibrain-docs-content h3 {
    font-size: 1.25rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.ikibrain-docs-content h3::before {
    content: '';
    display: inline-block;
    width: 9px;
    height: 9px;
    background: var(--darker);
    border-radius: 1px;
    margin-right: 0.55rem;
    vertical-align: middle;
    position: relative;
    top: -2px;
}

.ikibrain-docs-content h3:first-of-type {
    margin-top: 0;
}

.ikibrain-docs-content h4 {
    font-size: 1.05rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: #E6B800;
}

.ikibrain-docs-note {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    background: var(--bg-alt);
}

.ikibrain-docs-tip {
    border-left: 3px solid #3b82f6;
    background: #eff6ff;
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    margin: 1rem 0;
}

.ikibrain-docs-warning {
    border-left: 3px solid var(--accent-hover);
    background: #fffbeb;
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    margin: 1rem 0;
}

/* --- Responsive --- */
@media (max-width: 991px) {
    .docs-hub__grid {
        grid-template-columns: 1fr;
        max-width: 480px;
    }

    .ikibrain-docs {
        flex-direction: column;
    }

    .ikibrain-docs-sidebar {
        width: 100%;
        position: static;
        max-height: none;
        overflow-y: visible;
        display: none;
    }
}