/* Kronos X member documentation, design system.
   Self-contained: no web fonts, no CDN, no external requests. */

:root {
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --bg-code: #0f172a;
  --ink: #16212e;
  --ink-soft: #55657a;
  --ink-faint: #8496ab;
  --rule: #e2e8f0;
  --accent: #0b5cad;
  --accent-soft: #e8f1fb;
  --good: #0e7d4f;
  --warn: #a2650a;
  --bad: #c02a1f;
  --sidebar-w: 268px;
  --toc-w: 208px;
  --radius: 8px;
  --mono: ui-monospace, "Cascadia Mono", Consolas, "SF Mono", Menlo, monospace;
  --sans: "Segoe UI", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

html[data-theme="dark"] {
  --bg: #0d1420;
  --bg-alt: #141d2b;
  --bg-code: #05090f;
  --ink: #e6edf6;
  --ink-soft: #a8b8cc;
  --ink-faint: #7386a0;
  --rule: #22304a;
  --accent: #66aef5;
  --accent-soft: #14263d;
  --good: #4ade80;
  --warn: #fbbf24;
  --bad: #f87171;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- topbar */

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 16px;
  height: 60px; padding: 0 20px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--rule);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; color: var(--ink); font-size: 15.5px; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand svg { display: block; }
/* Perpetuals wordmark: two variants, one per background tone. The theme toggle
   stamps data-theme on :root, so the correct one is shown without any script. */
.brand-mark { display: block; height: 15px; width: auto; }
.brand-dark { display: none; }
:root[data-theme="dark"] .brand-light { display: none; }
:root[data-theme="dark"] .brand-dark { display: block; }
.brand .rule { width: 1px; height: 17px; background: var(--rule); }
.brand .ver { font: 600 10.5px/1 var(--sans); color: var(--ink-soft);
  letter-spacing: .02em; white-space: nowrap; }
.brand .env { font: 600 10.5px/1 var(--sans); letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft); padding: 4px 7px; border-radius: 5px; }
.topbar .spacer { flex: 1; }
.topbar nav { display: flex; gap: 4px; }
.topbar nav a {
  padding: 7px 11px; border-radius: 6px; color: var(--ink-soft);
  font-size: 14px; font-weight: 500;
}
.topbar nav a:hover { background: var(--bg-alt); color: var(--ink); text-decoration: none; }
.topbar nav a.active { color: var(--accent); background: var(--accent-soft); }

.iconbtn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border: 1px solid var(--rule); border-radius: 7px;
  background: var(--bg); color: var(--ink-soft); cursor: pointer; padding: 0;
}
.iconbtn:hover { color: var(--ink); border-color: var(--ink-faint); }

.searchbox {
  position: relative; width: 260px;
}
.searchbox input {
  width: 100%; height: 34px; padding: 0 10px 0 32px;
  border: 1px solid var(--rule); border-radius: 7px;
  background: var(--bg-alt); color: var(--ink); font: 14px var(--sans);
}
.searchbox input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.searchbox svg { position: absolute; left: 9px; top: 9px; color: var(--ink-faint); }
.searchbox kbd {
  position: absolute; right: 8px; top: 8px; font: 11px var(--mono);
  color: var(--ink-faint); border: 1px solid var(--rule); border-radius: 4px; padding: 1px 5px;
  background: var(--bg);
}
.results {
  position: absolute; top: 40px; left: 0; right: 0; max-height: 60vh; overflow-y: auto;
  background: var(--bg); border: 1px solid var(--rule); border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(15, 30, 55, .16); display: none; z-index: 50;
}
.results.open { display: block; }
.results a { display: block; padding: 9px 12px; border-bottom: 1px solid var(--rule); color: var(--ink); }
.results a:last-child { border-bottom: 0; }
.results a:hover, .results a.sel { background: var(--accent-soft); text-decoration: none; }
.results .r-page { display: block; font-size: 11.5px; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .05em; }
.results .r-empty { padding: 14px; color: var(--ink-faint); font-size: 14px; }

/* ---------------------------------------------------------------- layout */

.shell { display: grid; grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w); gap: 0; align-items: start; }

.sidebar {
  position: sticky; top: 60px; height: calc(100vh - 60px); overflow-y: auto;
  border-right: 1px solid var(--rule); padding: 22px 14px 60px;
}
.sidebar h4 {
  margin: 18px 0 6px; padding: 0 10px; font-size: 11px; letter-spacing: .09em;
  text-transform: uppercase; color: var(--ink-faint); font-weight: 700;
}
.sidebar h4:first-child { margin-top: 0; }
.sidebar a {
  display: block; padding: 6px 10px; border-radius: 6px;
  color: var(--ink-soft); font-size: 14px; line-height: 1.45;
}
.sidebar a:hover { background: var(--bg-alt); color: var(--ink); text-decoration: none; }
.sidebar a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

.content { padding: 34px 44px 100px; min-width: 0; max-width: 900px; }
.content > section { scroll-margin-top: 76px; }

.toc { position: sticky; top: 60px; height: calc(100vh - 60px); overflow-y: auto; padding: 30px 18px 60px; }
.toc b { display: block; font-size: 11px; letter-spacing: .09em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 8px; }
.toc a { display: block; padding: 4px 0 4px 10px; font-size: 13px; color: var(--ink-soft); border-left: 2px solid var(--rule); }
.toc a:hover { color: var(--ink); text-decoration: none; }
.toc a.active { color: var(--accent); border-left-color: var(--accent); font-weight: 550; }
.toc a.lvl3 { padding-left: 22px; font-size: 12.5px; }

/* ---------------------------------------------------------------- text */

h1 { font-size: 32px; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 10px; }
h2 { font-size: 22px; letter-spacing: -0.01em; margin: 44px 0 12px; padding-top: 6px; }
h3 { font-size: 16.5px; margin: 28px 0 8px; }
h4 { font-size: 14.5px; margin: 20px 0 6px; }
p, li { color: var(--ink); max-width: 76ch; }
li { margin: 4px 0; }
.lede { font-size: 17px; line-height: 1.65; color: var(--ink-soft); max-width: 72ch; margin-bottom: 22px; }
.anchor { color: var(--ink-faint); opacity: 0; margin-left: 8px; font-weight: 400; text-decoration: none; }
h2:hover .anchor, h3:hover .anchor { opacity: 1; }

hr { border: 0; border-top: 1px solid var(--rule); margin: 40px 0; }

/* ---------------------------------------------------------------- code */

code {
  font: 13px/1.5 var(--mono);
  background: var(--bg-alt); border: 1px solid var(--rule);
  border-radius: 4px; padding: 1px 5px; color: var(--ink);
}
pre {
  margin: 0; padding: 16px 18px; overflow-x: auto;
  background: var(--bg-code); border-radius: var(--radius);
  font: 13px/1.65 var(--mono); color: #d5e2f2;
}
pre code { background: none; border: 0; padding: 0; color: inherit; font-size: 13px; }
.codewrap { position: relative; margin: 14px 0; }
.copybtn {
  position: absolute; top: 9px; right: 9px; padding: 4px 9px;
  font: 500 11.5px var(--sans); color: #a8bdd6;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
  border-radius: 5px; cursor: pointer; opacity: 0; transition: opacity .12s;
}
.codewrap:hover .copybtn { opacity: 1; }
.copybtn:hover { background: rgba(255,255,255,.16); color: #fff; }
.copybtn.done { color: #6ee7a8; border-color: #6ee7a8; }

/* syntax tint */
.tok-key { color: #8fd3ff; }
.tok-str { color: #a5e6a5; }
.tok-num { color: #f9c96b; }
.tok-com { color: #6f8199; font-style: italic; }

.tabs { display: flex; gap: 2px; margin: 14px 0 0; border-bottom: 1px solid var(--rule); }
.tabs button {
  padding: 7px 13px; border: 0; background: none; cursor: pointer;
  font: 500 13.5px var(--sans); color: var(--ink-soft);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tabs button:hover { color: var(--ink); }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }
.tabpanel { display: none; }
.tabpanel.active { display: block; }
.tabpanel .codewrap { margin-top: 0; border-top-left-radius: 0; }

/* ---------------------------------------------------------------- tables */

.tablewrap { overflow-x: auto; margin: 14px 0 20px; border: 1px solid var(--rule); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th {
  text-align: left; background: var(--bg-alt); padding: 9px 13px;
  font-size: 11px; letter-spacing: .07em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 700; border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}
td { padding: 9px 13px; border-bottom: 1px solid var(--rule); vertical-align: top; color: var(--ink); }
tr:last-child td { border-bottom: 0; }
td code { font-size: 12.5px; }
td.nowrap { white-space: nowrap; }

/* ---------------------------------------------------------------- callouts */

.note, .warn-box, .danger, .tip {
  margin: 18px 0; padding: 13px 16px; border-radius: var(--radius);
  border-left: 3px solid var(--accent); background: var(--accent-soft); font-size: 14.5px;
}
.note p:last-child, .warn-box p:last-child, .danger p:last-child, .tip p:last-child { margin-bottom: 0; }
.note p:first-child, .warn-box p:first-child, .danger p:first-child, .tip p:first-child { margin-top: 0; }
.warn-box { border-left-color: var(--warn); background: color-mix(in srgb, var(--warn) 9%, transparent); }
.danger { border-left-color: var(--bad); background: color-mix(in srgb, var(--bad) 9%, transparent); }
.tip { border-left-color: var(--good); background: color-mix(in srgb, var(--good) 9%, transparent); }
.note b:first-child, .warn-box b:first-child, .danger b:first-child, .tip b:first-child { display: inline; }

/* ---------------------------------------------------------------- badges */

.m {
  display: inline-block; min-width: 52px; text-align: center;
  font: 700 10.5px/1 var(--mono); letter-spacing: .04em;
  padding: 5px 7px; border-radius: 4px; color: #fff; margin-right: 8px;
  vertical-align: middle;
}
.m-get { background: #0e7d4f; }
.m-post { background: #0b5cad; }
.m-put { background: #a2650a; }
.m-del { background: #c02a1f; }
.m-ws { background: #6b3fa0; }
.m-fix { background: #0f766e; }

.pill {
  display: inline-block; font: 600 11.5px var(--sans); padding: 2px 8px;
  border-radius: 20px; border: 1px solid var(--rule); color: var(--ink-soft);
}
.pill.ok { color: var(--good); border-color: color-mix(in srgb, var(--good) 40%, transparent); }
.pill.no { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, transparent); }

.ep {
  display: flex; align-items: center; gap: 2px; flex-wrap: wrap;
  font: 13.5px var(--mono); background: var(--bg-alt);
  border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 10px 13px; margin: 16px 0 8px;
}
.ep .path { font-weight: 600; }

/* ---------------------------------------------------------------- cards */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(232px, 1fr)); gap: 14px; margin: 22px 0; }
.card {
  display: block; padding: 17px 18px; border: 1px solid var(--rule);
  border-radius: var(--radius); background: var(--bg); color: var(--ink);
  transition: border-color .12s, transform .12s;
}
.card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.card b { display: block; font-size: 15px; margin-bottom: 4px; }
.card span { font-size: 13.5px; color: var(--ink-soft); line-height: 1.55; display: block; }

.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }

.kv { display: grid; grid-template-columns: 168px 1fr; gap: 6px 16px; font-size: 14px; margin: 14px 0; }
.kv dt { color: var(--ink-faint); font-weight: 600; }
.kv dd { margin: 0; }

footer.site {
  border-top: 1px solid var(--rule); margin-top: 60px; padding: 26px 0 0;
  color: var(--ink-faint); font-size: 13px;
}
footer.site a { color: var(--ink-soft); }

/* ---------------------------------------------------------------- responsive */

.menubtn { display: none; }

@media (max-width: 1180px) {
  .shell { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 900px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed; top: 60px; left: 0; width: 280px; background: var(--bg);
    transform: translateX(-100%); transition: transform .18s; z-index: 30;
    box-shadow: 0 8px 32px rgba(15,30,55,.14);
  }
  .sidebar.open { transform: none; }
  .menubtn { display: inline-flex; }
  .content { padding: 26px 20px 80px; }
  .topbar nav { display: none; }
  .searchbox { width: 170px; }
  .searchbox kbd { display: none; }
}

@media print {
  .topbar, .sidebar, .toc, .copybtn { display: none; }
  .shell { grid-template-columns: 1fr; }
  .content { max-width: none; padding: 0; }
  pre { background: #f4f6fa; color: #16212e; border: 1px solid #dde3ec; }
}