* { box-sizing: border-box; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; color: #24292f; background: #fff; }
header { background: #f6f8fa; color: #24292f; padding: 16px 24px; border-bottom: 1px solid #d0d7de; }
header .header-inner { display: flex; align-items: center; gap: 14px; max-width: 1120px; margin: 0 auto; }
header .logo { width: 40px; height: 40px; flex: 0 0 auto; }
header h1 { margin: 0; font-size: 22px; color: #24292f; }
header h1 a.brand { color: inherit; text-decoration: none; }
header h1 a.brand:hover { color: #0969da; }
header p { margin: 2px 0 0; font-size: 13px; color: #57606a; }
main .loading { padding: 24px; color: #57606a; }

.layout { display: flex; min-height: calc(100vh - 96px); }

/* ---------- Treeview sidebar ---------- */
nav.sidebar { width: 270px; flex: 0 0 270px; background: #f6f8fa; border-right: 1px solid #d0d7de; padding: 16px 10px 40px; overflow-y: auto; }
nav.sidebar a.home { display: block; font-weight: 600; color: #0969da; text-decoration: none; padding: 8px 10px; border-radius: 6px; font-size: 14px; margin-bottom: 4px; }
nav.sidebar a.home:hover { background: #ddf4ff; }

/* ---------- Search ---------- */
.search-wrap { position: relative; padding: 0 4px 10px; border-bottom: 1px solid #d0d7de; margin-bottom: 10px; }
.search-wrap input { width: 100%; padding: 8px 10px; border: 1px solid #d0d7de; border-radius: 6px; font-size: 13px; font-family: inherit; }
.search-wrap input:focus { outline: none; border-color: #0969da; }
.search-results { position: absolute; left: 4px; right: 4px; top: 100%; z-index: 50; background: #fff; border: 1px solid #d0d7de; border-radius: 6px; box-shadow: 0 6px 16px rgba(0,0,0,.12); max-height: 320px; overflow-y: auto; }
.search-results a { display: flex; gap: 8px; align-items: baseline; padding: 7px 10px; text-decoration: none; border-bottom: 1px solid #f0f0f0; }
.search-results a:hover { background: #ddf4ff; }
.search-results .r-kind { flex: 0 0 auto; font-size: 10px; text-transform: uppercase; letter-spacing: .05em; color: #0969da; background: #ddf4ff; border-radius: 4px; padding: 1px 5px; }
.search-results .r-label { color: #24292f; font-size: 13px; }
.search-results .no-result { padding: 10px; color: #57606a; font-size: 13px; }
.ns-label { font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: #57606a; margin: 14px 10px 6px; }
nav.sidebar details { margin: 2px 0; }
nav.sidebar summary { cursor: pointer; list-style: none; padding: 4px 10px; border-radius: 6px; font-size: 14px; display: flex; align-items: center; gap: 6px; user-select: none; }
nav.sidebar summary::-webkit-details-marker { display: none; }
nav.sidebar summary::before { content: '\25B8'; color: #0969da; font-size: 11px; transition: transform .15s ease; }
nav.sidebar details[open] > summary::before { transform: rotate(90deg); }
nav.sidebar summary:hover { background: #ddf4ff; }
nav.sidebar summary a.cls { color: #24292f; text-decoration: none; }
nav.sidebar summary a.cls.active { color: #0969da; font-weight: 600; }
nav.sidebar details > .tree-branch { padding-left: 26px; border-left: 1px solid #d0d7de; margin-left: 14px; }
nav.sidebar .tree-branch a.meth { display: block; color: #57606a; text-decoration: none; padding: 5px 8px; border-radius: 5px; font-size: 12.5px; line-height: 1.3; }
nav.sidebar .tree-branch a.meth:hover { background: #ddf4ff; color: #0969da; }
nav.sidebar .tree-branch a.meth.active { background: #0969da; color: #fff; font-weight: 600; }

/* ---------- Content ---------- */
main { flex: 1; max-width: 920px; padding: 24px 36px; min-width: 0; }
.breadcrumb { font-size: 13px; color: #57606a; margin-bottom: 12px; }
.breadcrumb a { color: #0969da; text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
h2 { border-bottom: 1px solid #d0d7de; padding-bottom: 6px; }
h3 { margin-top: 28px; }
.overline { color: #57606a; font-size: 13px; }
.declaration { background: #f6f8fa; border: 1px solid #d0d7de; border-radius: 6px; padding: 10px 14px; overflow-x: auto; margin: 8px 0; }
.declaration pre { margin: 0; font-family: Consolas, monospace; font-size: 13px; }
.member { border-top: 1px solid #eaeef2; padding-top: 8px; }
.emphasized { color: #57606a; font-size: 13px; margin-bottom: 2px; }
table { border-collapse: collapse; width: 100%; margin: 8px 0 16px; }
th, td { border: 1px solid #d0d7de; padding: 8px 10px; text-align: left; font-size: 14px; vertical-align: top; }
th { background: #f6f8fa; }
code { font-family: Consolas, monospace; font-size: 13px; }
a { color: #0969da; text-decoration: none; }
a:hover { text-decoration: underline; }
table a { color: #0969da; text-decoration: none; }
table a:hover { text-decoration: underline; }
.card { border: 1px solid #d0d7de; border-radius: 6px; padding: 16px; margin: 12px 0; }
.card h3 { margin: 0 0 6px; }
.card.install { display: block; }
.card.install .install-body { flex: 1; min-width: 0; }
pre { font-family: Consolas, monospace; }
p.back { margin-top: 30px; }
p.back a { color: #0969da; text-decoration: none; }
p.back a:hover { text-decoration: underline; }

/* ---------- Install Tabs & Code Copy Component ---------- */
.install-tabs { margin-top: 12px; }
.nav-tabs { display: flex; flex-wrap: wrap; list-style: none; padding: 0; margin: 0 0 12px 0; border-bottom: 1px solid #d0d7de; gap: 4px; }
.nav-tabs li { margin-bottom: -1px; }
.nav-tabs a { display: inline-block; padding: 6px 12px; font-size: 13px; color: #57606a; text-decoration: none; border: 1px solid transparent; border-top-left-radius: 6px; border-top-right-radius: 6px; background: transparent; font-weight: 500; }
.nav-tabs a:hover { color: #0969da; background: #f6f8fa; border-color: #d0d7de #d0d7de #d0d7de; }
.nav-tabs li.active a { color: #0969da; font-weight: 600; background: #fff; border-color: #d0d7de #d0d7de #fff; }

.tab-pane { display: none; }
.tab-pane.active { display: block; }

.install-script-row { position: relative; margin-bottom: 8px; }
.install-script { position: relative; background: #24292e; color: #f6f8fa; padding: 10px 90px 10px 14px; border-radius: 6px; margin: 0; overflow-x: auto; font-size: 13px; line-height: 1.5; display: flex; align-items: center; justify-content: space-between; }
.install-command-row { font-family: Consolas, Monaco, monospace; word-break: break-all; }

.copy-button { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); display: flex; align-items: center; gap: 6px; }
.package-manager-command-header { font-size: 11px; color: #8b949e; margin-right: 4px; font-family: sans-serif; }
.btn-brand-icon { background: #32383e; border: 1px solid #444c56; color: #c9d1d9; border-radius: 6px; padding: 4px 10px; font-size: 12px; cursor: pointer; display: inline-flex; align-items: center; gap: 4px; transition: all .15s ease; }
.btn-brand-icon:hover { background: #444c56; color: #fff; border-color: #0969da; }
.btn-brand-icon.copied { background: #1f6beb; color: #fff; border-color: #1f6beb; }

.icon-text.alert { padding: 8px 12px; border-radius: 6px; font-size: 12px; margin-top: 8px; line-height: 1.4; display: flex; align-items: flex-start; gap: 8px; }
.alert-brand-info { background: #f0f7ff; border: 1px solid #c8e1ff; color: #0969da; }
.alert-brand-info a { color: #0969da; text-decoration: underline; }
.alert-brand-warning { background: #fff8c5; border: 1px solid #d4a72c; color: #7d4e00; }
.alert-brand-warning a { color: #7d4e00; text-decoration: underline; }

@media (max-width: 768px) {
  .layout { flex-direction: column; }
  nav.sidebar { width: 100%; flex: 0 0 auto; border-right: none; border-bottom: 1px solid #d0d7de; }
  main { padding: 20px; }
}
.version-badge { display: inline-block; margin-top: 6px; font-size: 12px; font-weight: 600; color: #0969da; background: #ddf4ff; border: 1px solid #54aeff; border-radius: 999px; padding: 3px 12px; }

footer { padding: 16px 24px; border-top: 1px solid #d0d7de; font-size: 12px; color: #57606a; background: #f6f8fa; text-align: center; }

.version-controls { display: inline-flex; align-items: center; gap: 6px; margin-left: 16px; font-size: 13px; color: #57606a; }
.version-controls select { padding: 4px 8px; border: 1px solid #d0d7de; border-radius: 6px; background: #fff; font-size: 13px; cursor: pointer; }
.version-controls select:focus { outline: none; border-color: #0969da; }

.since-badge { display: inline-block; margin: 8px 0 4px; font-size: 12px; font-weight: 600; color: #0969da; background: #ddf4ff; border: 1px solid #54aeff; border-radius: 999px; padding: 3px 12px; }

.version-notice { padding: 10px 14px; border: 1px solid #d4a72c; background: #fff8c5; color: #7d4e00; border-radius: 6px; font-size: 13px; margin-bottom: 12px; }

main.filtered > *:not(.version-notice):not(.breadcrumb):not(.since-badge) { display: none; }