* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: #222;
    background: #fff;
}

a { color: #0066cc; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 12px 24px;
    border-bottom: 1px solid #e0e0e0;
    background: #fff;
}

#logo {
    font-weight: 600;
    font-size: 16px;
    color: #222;
    white-space: nowrap;
}

#mainnav {
    display: flex;
    gap: 8px;
}

#mainnav ul {
    display: flex;
    gap: 8px;
    list-style: none;
}

#mainnav a {
    padding: 4px 12px;
    border-radius: 4px;
    color: #444;
    font-size: 14px;
}

#mainnav a:hover { background: #f0f0f0; text-decoration: none; }
#mainnav a.active { background: #0066cc; color: #fff; }

/* Layout */
.page-container {
    display: flex;
    min-height: calc(100vh - 50px);
}

.sidebar {
    width: 260px;
    flex-shrink: 0;
    border-right: 1px solid #e0e0e0;
    padding: 16px;
    overflow-y: auto;
}

/* nav inside aside — same styles as old .sidebar-content */
.sidebar-content ul { list-style: none; }
.sidebar-content a {
    display: block;
    padding: 4px 20px;
    color: #444;
    font-size: 14px;
}
.sidebar-content a:hover { background: #f5f5f5; text-decoration: none; }
.sidebar-content a.active { color: #0066cc; font-weight: 600; }

.sidebar-content ul ul a { padding-left: 36px; }
.sidebar-content ul ul ul a { padding-left: 52px; }

/* Content */
.container {
    flex: 1;
    padding: 32px 40px;
    max-width: 760px;
}

/* article.content — semantic main content area */
article.content h1 { font-size: 1.8em; margin-bottom: 16px; }
article.content h2 { font-size: 1.4em; margin: 24px 0 12px; }
article.content h3 { font-size: 1.1em; margin: 20px 0 8px; }
article.content p  { margin-bottom: 12px; }
article.content ul, article.content ol { margin: 8px 0 12px 24px; }
article.content li { margin-bottom: 4px; }

article.content pre {
    background: #f6f6f6;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 12px 16px;
    overflow-x: auto;
    margin: 12px 0;
}

article.content code {
    font-family: ui-monospace, monospace;
    font-size: 13px;
    background: #f0f0f0;
    padding: 1px 4px;
    border-radius: 3px;
}

article.content pre code {
    background: none;
    padding: 0;
}

article.content table {
    border-collapse: collapse;
    width: 100%;
    margin: 12px 0;
}
article.content th, article.content td {
    border: 1px solid #ddd;
    padding: 6px 12px;
    text-align: left;
}
article.content th { background: #f5f5f5; }

article.content img { max-width: 100%; }

article.content blockquote {
    border-left: 3px solid #ccc;
    padding-left: 16px;
    color: #666;
    margin: 12px 0;
}

/* Visually hidden (screen-reader only) */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Search */
#searchbtn { position: relative; margin-left: auto; }
#searchfield {
    padding: 5px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    width: 200px;
}
#autocomplete {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    min-width: 280px;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,.1);
}
.search-results-list { list-style: none; }
.search-results-list li a {
    display: block;
    padding: 8px 12px;
    text-decoration: none;
    color: #222;
}
.search-results-list li a:hover,
.search-results-list li.hover a { background: #f0f0f0; }
.search-title { display: block; font-size: 14px; font-weight: 600; color: #0066cc; }
.search-snippet { display: block; font-size: 12px; color: #666; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-snippet mark { background: #fff3b0; color: inherit; font-style: normal; }

/* Notice bar */
.not-ready {
    background: #fffbe6;
    border-top: 1px solid #ffe58f;
    padding: 8px 24px;
    font-size: 13px;
    color: #666;
}