/* =============================================================================
   Help Center — full-page documentation browser
   ============================================================================= */

.help-layout {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    height: calc(100vh - var(--bf-header-height));
}

/* ---- Sidebar (search + navigation tree) ---------------------------------- */
.help-sidebar {
    border-right: 1px solid var(--bf-gray-200);
    background: var(--bf-gray-50);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.help-sidebar-search {
    padding: 14px 14px 10px;
    border-bottom: 1px solid var(--bf-gray-200);
    position: sticky;
    top: 0;
    background: var(--bf-gray-50);
    z-index: 1;
}

.help-nav {
    overflow-y: auto;
    padding: 8px 6px 40px;
    flex: 1 1 auto;
    min-height: 0;
}

.help-nav-section { margin-bottom: 14px; }

.help-nav-heading {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--bf-gray-500);
    padding: 6px 12px;
}

.help-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.help-nav-link {
    display: block;
    padding: 5px 12px;
    font-size: 13.5px;
    color: var(--bf-gray-700);
    text-decoration: none;
    border-radius: var(--bf-radius);
    border-left: 2px solid transparent;
}

.help-nav-link:hover {
    background: var(--bf-gray-100);
    color: var(--bf-primary);
}

.help-nav-link.active {
    background: var(--bf-gray-100);
    color: var(--bf-primary);
    border-left-color: var(--bf-primary);
    font-weight: 600;
}

/* ---- Content pane -------------------------------------------------------- */
.help-main {
    overflow-y: auto;
    min-width: 0;
}

.help-content-wrap {
    max-width: 860px;
    margin: 0 auto;
    padding: 28px 40px 80px;
}

.help-toolbar { margin-bottom: 18px; }

.help-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 12.5px;
    color: var(--bf-gray-500);
}

.help-breadcrumb a { color: var(--bf-gray-600); text-decoration: none; }
.help-breadcrumb a:hover { color: var(--bf-primary); }
.help-breadcrumb .active { color: var(--bf-gray-800); font-weight: 600; }
.help-crumb-sep { font-size: 10px; color: var(--bf-gray-400); }

.help-placeholder { padding: 40px 0; }

/* ---- Search results ------------------------------------------------------ */
.help-results { padding: 28px 40px 80px; max-width: 860px; margin: 0 auto; }
.help-results-title { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
.help-results-list { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }

.help-result {
    display: block;
    padding: 12px 16px;
    border: 1px solid var(--bf-gray-200);
    border-radius: var(--bf-radius);
    text-decoration: none;
    background: var(--bf-gray-50);
    transition: border-color var(--bf-transition-fast), background var(--bf-transition-fast);
}
.help-result:hover { border-color: var(--bf-primary); background: var(--bf-gray-100); }
.help-result-title { font-weight: 600; color: var(--bf-primary); font-size: 15px; }
.help-result-section { font-size: 11px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--bf-gray-500); margin: 2px 0; }
.help-result-snippet { font-size: 13px; color: var(--bf-gray-600); line-height: 1.5; }
.help-results-empty { padding: 30px 0; }

/* ---- Markdown typography (rendered docs) --------------------------------- */
.markdown-body {
    color: var(--bf-gray-800);
    font-size: 15px;
    line-height: 1.7;
    word-wrap: break-word;
}

.markdown-body h1 { font-size: 30px; font-weight: 700; margin: 0 0 16px; line-height: 1.25; }
.markdown-body h2 {
    font-size: 22px; font-weight: 700; margin: 34px 0 14px; padding-bottom: 6px;
    border-bottom: 1px solid var(--bf-gray-200); line-height: 1.3;
}
.markdown-body h3 { font-size: 18px; font-weight: 600; margin: 26px 0 10px; }
.markdown-body h4 { font-size: 15.5px; font-weight: 600; margin: 20px 0 8px; }
.markdown-body p { margin: 0 0 14px; }
.markdown-body ul, .markdown-body ol { margin: 0 0 14px; padding-left: 26px; }
.markdown-body li { margin: 4px 0; }
.markdown-body a { color: var(--bf-primary); text-decoration: none; }
.markdown-body a:hover { text-decoration: underline; }

.markdown-body code {
    font-family: var(--bf-font-mono);
    font-size: 0.86em;
    background: var(--bf-gray-100);
    color: var(--bf-danger);
    padding: 2px 6px;
    border-radius: var(--bf-radius);
}

.markdown-body pre {
    background: var(--bf-gray-100);
    border: 1px solid var(--bf-gray-200);
    border-radius: var(--bf-radius);
    padding: 14px 16px;
    overflow-x: auto;
    margin: 0 0 16px;
}
.markdown-body pre code { background: none; color: var(--bf-gray-800); padding: 0; font-size: 13px; }

.markdown-body blockquote {
    margin: 0 0 16px;
    padding: 10px 16px;
    border-left: 4px solid var(--bf-primary);
    background: var(--bf-gray-50);
    color: var(--bf-gray-700);
    border-radius: 0 var(--bf-radius) var(--bf-radius) 0;
}
.markdown-body blockquote p:last-child { margin-bottom: 0; }

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 18px;
    font-size: 14px;
    display: block;
    overflow-x: auto;
}
.markdown-body th, .markdown-body td {
    border: 1px solid var(--bf-gray-200);
    padding: 8px 12px;
    text-align: left;
}
.markdown-body th { background: var(--bf-gray-100); font-weight: 600; }
.markdown-body tr:nth-child(even) td { background: var(--bf-gray-50); }

.markdown-body img { max-width: 100%; height: auto; }
.markdown-body hr { border: 0; border-top: 1px solid var(--bf-gray-200); margin: 26px 0; }

/* ---- Navbar Help dropdown ------------------------------------------------ */
.bf-help-menu { min-width: 300px; padding-bottom: 8px; }
.bf-help-menu .dropdown-header { font-weight: 600; }
.bf-help-menu form { margin: 0; }

/* ---- Responsive ---------------------------------------------------------- */
@media (max-width: 860px) {
    .help-layout { grid-template-columns: 1fr; height: auto; }
    .help-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--bf-gray-200);
        max-height: 40vh;
    }
    .help-main { overflow: visible; }
    .help-content-wrap, .help-results { padding: 20px; }
}