:root {
  --topbar-bg: #181a1a;
  --topbar-fg: #ffffff;
  --page-bg: #ffffff;
  --content-fg: #30353a;
  --muted: #717880;
  --heading: #1a1d1f;
  --border: #e6e8eb;
  --border-strong: #d4d8dc;
  --link: #2a7ae4;
  --link-hover: #1b5fc0;
  --sidebar-bg: #ffffff;
  --sidebar-heading: #8a9099;
  --nav-active-bg: #eef4ff;
  --nav-active-fg: #1b5fc0;
  --code-bg: #16181d;
  --code-head-bg: #1f232b;
  --code-fg: #e6e8eb;
  --card-bg: #ffffff;
  --primary: #181a1a;

  --m-get: #2bb673;
  --m-post: #2d7ff9;
  --m-put: #f59e0b;
  --m-patch: #14b8a6;
  --m-delete: #ef4444;

  --topbar-h: 56px;
  --subbar-h: 44px;
  --sidebar-w: 290px;
  --aside-w: 460px;
  --content-max: 760px;
  --font: "system-ui", -apple-system, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --mono: "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

[data-theme="dark"] {
  --page-bg: #16181d;
  --content-fg: #c7ccd1;
  --muted: #8a9099;
  --heading: #f1f3f5;
  --border: #2a2e35;
  --border-strong: #353b44;
  --sidebar-bg: #181b20;
  --nav-active-bg: #1f2937;
  --nav-active-fg: #6ea8fe;
  --card-bg: #1b1e24;
  --link: #6ea8fe;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--content-fg);
  background: var(--page-bg);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

/* ---- Top bar ---- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  height: var(--topbar-h);
  background: var(--topbar-bg);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
}
.brand { display: flex; align-items: center; }
.brand:hover { text-decoration: none; }
.brand-logo { height: 26px; width: auto; display: block; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.theme-toggle {
  background: transparent; border: 0; cursor: pointer;
  width: 32px; height: 32px; border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #cfd3d6;
}
.theme-toggle:hover { background: rgba(255,255,255,0.08); }
.theme-icon { width: 16px; height: 16px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ffd86b 0 45%, #c9893b 46% 100%); }
[data-theme="dark"] .theme-icon { background: #cfd3d6; box-shadow: inset -4px -2px 0 0 var(--topbar-bg); }

/* ---- Sub bar ---- */
.subbar {
  position: sticky; top: var(--topbar-h); z-index: 39;
  height: var(--subbar-h);
  background: var(--topbar-bg);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; gap: 14px;
  padding: 0 20px;
}
.version-badge {
  color: #cfd3d6; font-size: 13px; font-weight: 600;
  padding: 3px 8px; border-radius: 5px; background: rgba(255,255,255,0.06);
}
.subbar-tab {
  color: #fff; font-size: 13px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 10px; border-radius: 6px; background: rgba(255,255,255,0.10);
}
.tab-icon { font-family: var(--mono); opacity: .8; font-size: 12px; }

/* ---- Layout ---- */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  align-items: start;
  max-width: 1600px;
  margin: 0 auto;
}
.layout.has-aside {
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--aside-w);
}
.sticky-top { position: sticky; }

/* ---- Sidebar ---- */
.sidebar {
  position: sticky;
  top: calc(var(--topbar-h) + var(--subbar-h));
  height: calc(100vh - var(--topbar-h) - var(--subbar-h));
  overflow-y: auto;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 22px 14px 60px;
}
.nav-group { margin-bottom: 22px; }
.nav-heading {
  text-transform: uppercase; font-size: 11px; font-weight: 700;
  letter-spacing: .06em; color: var(--sidebar-heading);
  padding: 0 10px; margin-bottom: 8px;
}
.nav-list { list-style: none; margin: 0; padding: 0; }
.nav-link {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 6px 10px; border-radius: 7px;
  color: var(--content-fg); font-size: 14px; line-height: 1.35;
}
.nav-link:hover { background: rgba(0,0,0,0.04); text-decoration: none; }
[data-theme="dark"] .nav-link:hover { background: rgba(255,255,255,0.05); }
.nav-link.active { background: var(--nav-active-bg); color: var(--nav-active-fg); font-weight: 600; }
.nav-text { min-width: 0; }
.nav-method {
  font-size: 9px; font-weight: 700; letter-spacing: .03em;
  padding: 2px 5px; border-radius: 4px; color: #fff; flex-shrink: 0;
}

/* method colors */
.method-get, .nav-method.method-get { background: var(--m-get); }
.method-post, .nav-method.method-post { background: var(--m-post); }
.method-put, .nav-method.method-put { background: var(--m-put); }
.method-patch, .nav-method.method-patch { background: var(--m-patch); }
.method-delete, .nav-method.method-delete { background: var(--m-delete); }

/* ---- Content ---- */
.content { padding: 40px 48px 80px; min-width: 0; }
.article { max-width: var(--content-max); }
.page-title { font-size: 30px; font-weight: 700; color: var(--heading); margin: 0 0 20px; line-height: 1.2; }

.endpoint-url {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 18px;
}
.method {
  font-size: 11px; font-weight: 700; color: #fff;
  padding: 4px 9px; border-radius: 5px; letter-spacing: .03em;
}
.endpoint-path {
  font-family: var(--mono); font-size: 14px; color: var(--content-fg);
  word-break: break-all;
}
.endpoint-desc { margin-bottom: 8px; }

/* params */
.params-block { margin-top: 30px; border-top: 1px solid var(--border); padding-top: 6px; }
.params-title { font-size: 18px; font-weight: 700; color: var(--heading); margin: 16px 0 6px; }
.param-row { padding: 14px 0; border-bottom: 1px solid var(--border); }
.param-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.param-name { font-family: var(--mono); font-weight: 600; color: var(--heading); font-size: 14px; }
.param-type { color: var(--muted); font-size: 13px; }
.param-type code, .param-type { font-family: var(--mono); }
.param-required { color: var(--m-delete); font-size: 12px; font-weight: 600; }
.param-meta { color: var(--muted); font-size: 12px; }
.param-meta code, .param-desc code, .param-enum code {
  font-family: var(--mono); background: rgba(0,0,0,0.05); padding: 1px 5px; border-radius: 4px; font-size: 12.5px;
}
[data-theme="dark"] .param-meta code, [data-theme="dark"] .param-desc code { background: rgba(255,255,255,0.08); }
.param-desc { color: var(--content-fg); font-size: 14px; margin-top: 4px; }
.param-enum { font-size: 12.5px; color: var(--muted); margin-top: 5px; }
.param-nested {
  margin: 10px 0 2px 4px; padding-left: 14px; border-left: 2px solid var(--border-strong);
}
.param-nested .param-row:last-child { border-bottom: 0; padding-bottom: 0; }

.responses-block .response-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.resp-status { font-weight: 700; font-family: var(--mono); display: inline-flex; align-items: center; gap: 7px; }
.resp-text { color: var(--muted); font-size: 14px; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--m-get); }
.dot.err { background: var(--m-delete); }
.dot.info { background: var(--m-post); }

/* ---- Code column ---- */
.code-column {
  position: sticky;
  top: calc(var(--topbar-h) + var(--subbar-h));
  max-height: calc(100vh - var(--topbar-h) - var(--subbar-h));
  overflow-y: auto;
  padding: 40px 24px 80px 0;
}
.code-card {
  background: var(--code-bg); border-radius: 10px; overflow: hidden;
  margin-bottom: 20px; border: 1px solid #0d0f13;
}
.code-card-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--code-head-bg); padding: 8px 12px; flex-wrap: wrap;
}
.code-card-title { color: #aeb6c0; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.lang-tabs, .resp-tabs { display: flex; gap: 2px; flex-wrap: wrap; }
.lang-tab, .resp-tab {
  background: transparent; border: 0; cursor: pointer;
  color: #8a929c; font-size: 12.5px; padding: 4px 9px; border-radius: 6px;
  display: inline-flex; align-items: center; gap: 6px; font-family: var(--font);
}
.lang-tab:hover, .resp-tab:hover { color: #fff; background: rgba(255,255,255,0.06); }
.lang-tab.active, .resp-tab.active { color: #fff; background: rgba(255,255,255,0.12); }

.code-panel, .resp-panel { display: none; }
.code-panel.active, .resp-panel.active { display: block; }
pre.code-panel {
  margin: 0; position: relative;
  padding: 14px 14px; overflow-x: auto;
}
pre.code-panel code {
  font-family: var(--mono); font-size: 12.5px; line-height: 1.6; color: var(--code-fg);
  background: transparent; display: block; white-space: pre;
}
.resp-panel { padding: 12px 14px; }
.resp-panel pre.code-panel { padding: 0; }
.resp-desc { color: #aeb6c0; font-size: 12px; margin-bottom: 8px; }
.resp-empty { color: #8a929c; font-size: 13px; }
.copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: rgba(255,255,255,0.1); color: #d7dce1; border: 0; cursor: pointer;
  font-size: 11px; padding: 3px 8px; border-radius: 5px; opacity: 0; transition: opacity .12s;
}
pre.code-panel:hover .copy-btn { opacity: 1; }
.copy-btn:hover { background: rgba(255,255,255,0.2); }
.copy-btn.copied { background: var(--m-get); color: #fff; }

/* ---- Markdown body (guide pages) ---- */
.markdown-body { font-size: 15px; }
.markdown-body h1 { font-size: 26px; }
.markdown-body h2 { font-size: 21px; margin-top: 34px; }
.markdown-body h3 { font-size: 17px; margin-top: 26px; }
.markdown-body h4 { font-size: 15px; margin-top: 22px; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 {
  color: var(--heading); font-weight: 700; line-height: 1.3; scroll-margin-top: 120px;
}
.markdown-body h2 { border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.markdown-body p { margin: 14px 0; }
.markdown-body ul, .markdown-body ol { padding-left: 22px; }
.markdown-body li { margin: 6px 0; }
.markdown-body code {
  font-family: var(--mono); font-size: 13px;
  background: rgba(0,0,0,0.05); padding: 2px 6px; border-radius: 5px;
}
[data-theme="dark"] .markdown-body code { background: rgba(255,255,255,0.08); }
.markdown-body pre {
  background: var(--code-bg); color: var(--code-fg);
  padding: 16px; border-radius: 10px; overflow-x: auto; margin: 18px 0;
}
.markdown-body pre code { background: transparent; padding: 0; font-size: 13px; line-height: 1.6; }
.markdown-body a { word-break: break-word; }
.markdown-body blockquote {
  margin: 16px 0; padding: 12px 16px; border-left: 4px solid var(--m-post);
  background: rgba(45,127,249,0.06); border-radius: 0 8px 8px 0;
}
.markdown-body table {
  border-collapse: collapse; width: 100%; margin: 18px 0; font-size: 14px; display: block; overflow-x: auto;
}
.markdown-body th, .markdown-body td {
  border: 1px solid var(--border); padding: 8px 12px; text-align: left; vertical-align: top;
}
.markdown-body th { background: rgba(0,0,0,0.03); font-weight: 700; color: var(--heading); }
[data-theme="dark"] .markdown-body th { background: rgba(255,255,255,0.04); }
.rm-figure { margin: 22px 0; text-align: center; }
.rm-figure img { max-width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--border); }
.rm-figure figcaption { color: var(--muted); font-size: 13px; margin-top: 8px; }

/* ---- Mobile ---- */
.menu-toggle {
  display: none; position: fixed; top: 11px; left: 12px; z-index: 50;
  width: 34px; height: 34px; border: 0; border-radius: 7px; background: rgba(255,255,255,0.12);
  cursor: pointer; padding: 8px;
}
.menu-toggle span { display: block; height: 2px; background: #fff; margin: 3px 0; border-radius: 2px; }
.sidebar-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.45); z-index: 44;
}
body.nav-open .sidebar-backdrop { display: block; }

@media (max-width: 1180px) {
  .layout.has-aside { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .code-column {
    position: static; max-height: none; overflow: visible;
    grid-column: 2; padding: 0 48px 40px;
  }
}
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .topbar { padding-left: 56px; }
  .layout, .layout.has-aside { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed; top: 0; left: 0; z-index: 45;
    width: 280px; height: 100vh; transform: translateX(-100%);
    transition: transform .2s ease; padding-top: 20px;
  }
  body.nav-open .sidebar { transform: translateX(0); }
  .content, .code-column { padding-left: 20px; padding-right: 20px; }
  .content { padding-top: 24px; }
}