/* ============================================================================
   Ignitor Docs — shell styles (Ember Dark).
   Three-zone layout (sidebar · content · on-this-page), MS Learn-style.
   Theme variables mirror the landing (index.html) so docs and site match.
   This file is authored by hand; build_docs.py only copies it to docs/assets/.
   ============================================================================ */

:root, :root[data-theme="ember"] {
  --bg:        #14110E;
  --bg-elev:   #1E1A15;
  --bg-elev2:  #2A2017;
  --text:      #ECE6DD;
  --muted:     #9A9186;
  --line:      #33291F;
  --accent:    #FF8A2B;
  --accent-2:  #F4A93C;
  --btn-grad:  linear-gradient(135deg, #FF7A18, #F4A93C);
  --on-accent: #1A1206;
  --glow:      0 6px 30px rgba(255, 138, 43, .30);
  --sidebar-w: 264px;
  --toc-w:     220px;
  --header-h:  56px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---- Screenshots / figures -------------------------------------------- */
figure.doc-shot { margin: 26px 0 10px; }
figure.doc-shot img {
  width: 100%; border: 1px solid var(--line); border-radius: 12px;
  background: var(--bg-elev); box-shadow: 0 18px 44px rgba(0, 0, 0, .38);
}
figure.doc-shot figcaption {
  margin-top: 10px; color: var(--muted); font-size: 13.5px; text-align: center;
}
figure.doc-diagram { margin: 26px 0 10px; }
figure.doc-diagram svg {
  display: block; width: 100%; max-width: 720px; margin: 0 auto;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--bg-elev); padding: 12px 0;
}
figure.doc-diagram figcaption {
  margin-top: 10px; color: var(--muted); font-size: 13.5px; text-align: center;
}

/* ---- Top bar ---------------------------------------------------------- */
.doc-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  display: flex; align-items: center; gap: 16px;
  padding: 0 20px;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.doc-header .brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 16px; color: var(--text);
}
.doc-header .brand:hover { text-decoration: none; }
.doc-header .brand .spark { font-size: 19px; }
.doc-header .brand .sub { color: var(--muted); font-weight: 600; font-size: 13px; }
.doc-header .spacer { flex: 1; }
.doc-header .site-link { color: var(--muted); font-size: 13.5px; }
.doc-header .site-link:hover { color: var(--text); text-decoration: none; }

/* language switch (mirrors landing) */
.lang { display: flex; gap: 4px; }
.lang a {
  display: inline-flex; align-items: center; gap: 5px; line-height: 1;
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  border-radius: 8px; padding: 5px 9px; font-size: 12.5px; font-weight: 600;
  text-decoration: none; transition: color .12s, background .12s, border-color .12s;
}
.lang a:hover { color: var(--text); border-color: var(--accent); text-decoration: none; }
.lang a.active { color: var(--on-accent); background: var(--btn-grad); border-color: transparent; }

/* mobile sidebar toggle (hidden on desktop) */
.menu-toggle {
  display: none; background: transparent; border: 1px solid var(--line);
  color: var(--text); border-radius: 8px; padding: 5px 10px; font-size: 16px;
  cursor: pointer;
}

/* ---- Layout grid ------------------------------------------------------ */
.doc-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  max-width: 1440px; margin: 0 auto;
  align-items: start;
}

/* ---- Left: navigation tree -------------------------------------------- */
.doc-nav {
  position: sticky; top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 26px 14px 40px 20px;
  border-right: 1px solid var(--line);
}
.doc-nav .nav-section { margin-bottom: 18px; }
.doc-nav .nav-section > .sec-title {
  font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); font-weight: 700; padding: 4px 10px; margin-bottom: 4px;
}
.doc-nav ul { list-style: none; }
.doc-nav li a {
  display: block; color: var(--text); font-size: 14px;
  padding: 6px 10px; border-radius: 8px; border-left: 2px solid transparent;
  transition: background .1s, color .1s;
}
.doc-nav li a:hover { background: var(--bg-elev); text-decoration: none; }
.doc-nav li a.active {
  color: var(--accent); background: var(--bg-elev);
  border-left-color: var(--accent); font-weight: 600;
}

/* Collapsible token list hanging under the Effect tokens nav entry. */
.doc-nav details.nav-sub { margin: 2px 0 4px 14px; }
.doc-nav details.nav-sub > summary {
  cursor: pointer; list-style: none;
  font-size: 12px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--muted); padding: 4px 10px; border-radius: 8px;
  user-select: none;
}
.doc-nav details.nav-sub > summary::before { content: "▸ "; }
.doc-nav details.nav-sub[open] > summary::before { content: "▾ "; }
.doc-nav details.nav-sub > summary:hover { background: var(--bg-elev); color: var(--text); }
.doc-nav .nav-tokens { border-left: 1px solid var(--line); margin-left: 12px; }
.doc-nav .nav-tokens li a.nav-token { padding: 2.5px 10px; border-left: none; }
.doc-nav .nav-tokens code {
  font-size: 12px; background: none; border: none; padding: 0;
  color: var(--accent-2);
}
.doc-nav .nav-tokens li a.nav-token:hover code { color: var(--accent); }

/* Token row anchors (#tok-<VERB>): keep the row clear of the sticky header,
   and flash the token that was navigated to. */
.doc-content code[id^="tok-"] { scroll-margin-top: calc(var(--header-h) + 14px); }
.doc-content code[id^="tok-"]:target {
  color: var(--accent); border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

/* ---- Center: content -------------------------------------------------- */
.doc-main { padding: 26px 44px 80px; min-width: 0; }
.breadcrumb { font-size: 12.5px; color: var(--muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .sep { margin: 0 7px; opacity: .6; }

.untranslated {
  background: var(--bg-elev2); border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 10px 14px; margin-bottom: 22px;
  font-size: 13.5px; color: var(--muted);
}

/* article typography */
.doc-content h1 { font-size: clamp(28px, 4vw, 38px); line-height: 1.18; letter-spacing: -.01em; margin-bottom: 8px; }
.doc-content h2 { font-size: 24px; margin: 38px 0 12px; padding-top: 8px; border-top: 1px solid var(--line); }
.doc-content h3 { font-size: 18px; margin: 26px 0 8px; }
.doc-content h4 { font-size: 15.5px; margin: 20px 0 6px; color: var(--accent-2); }
.doc-content p { margin: 12px 0; }
.doc-content ul, .doc-content ol { margin: 12px 0 12px 26px; }
.doc-content li { margin: 5px 0; }
.doc-content strong { color: #FBF6EE; }

/* anchor on hover for headings */
.doc-content h2, .doc-content h3 { scroll-margin-top: calc(var(--header-h) + 16px); }
.headerlink { opacity: 0; margin-left: 8px; color: var(--muted); font-weight: 400; text-decoration: none; }
.doc-content h2:hover .headerlink, .doc-content h3:hover .headerlink { opacity: 1; }

/* code */
.doc-content code {
  font-family: "Cascadia Code", "Consolas", ui-monospace, monospace;
  font-size: .88em; background: var(--bg-elev2); color: #FFD9A8;
  padding: 2px 6px; border-radius: 5px;
}
.doc-content pre {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: 10px; padding: 16px 18px; overflow-x: auto; margin: 16px 0;
}
.doc-content pre code { background: none; color: var(--text); padding: 0; font-size: 13px; }

/* tables */
.doc-content table { border-collapse: collapse; width: 100%; margin: 18px 0; font-size: 14px; }
.doc-content th, .doc-content td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
.doc-content th { background: var(--bg-elev); font-size: 12.5px; letter-spacing: .03em; text-transform: uppercase; color: var(--muted); }
.doc-content tr:nth-child(even) td { background: color-mix(in srgb, var(--bg-elev) 50%, transparent); }

/* blockquote / callout */
.doc-content blockquote {
  background: var(--bg-elev); border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0; padding: 12px 16px; margin: 18px 0; color: var(--text);
}
.doc-content blockquote p { margin: 6px 0; }

/* prev / next */
.prevnext { display: flex; gap: 14px; margin-top: 54px; }
.prevnext a {
  flex: 1; border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px;
  background: var(--bg-elev); color: var(--text); transition: border-color .12s, transform .12s;
}
.prevnext a:hover { border-color: var(--accent); transform: translateY(-1px); text-decoration: none; }
.prevnext .pn-label { display: block; font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.prevnext .pn-title { font-weight: 600; }
.prevnext .next { text-align: right; }

.edit-link { margin-top: 30px; font-size: 13px; }
.edit-link a { color: var(--muted); }
.edit-link a:hover { color: var(--accent); }

/* ---- Right: on this page --------------------------------------------- */
.doc-toc {
  position: sticky; top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto; padding: 30px 20px 40px 8px;
}
.doc-toc .toc-title {
  font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); font-weight: 700; margin-bottom: 10px;
}
.doc-toc ul { list-style: none; }
.doc-toc ul ul { margin-left: 12px; }
.doc-toc li a {
  display: block; color: var(--muted); font-size: 13px;
  padding: 4px 10px; border-left: 2px solid transparent; transition: color .1s, border-color .1s;
}
.doc-toc li a:hover { color: var(--text); text-decoration: none; }
.doc-toc li a.active { color: var(--accent); border-left-color: var(--accent); }

/* ---- Responsive ------------------------------------------------------- */
@media (max-width: 1100px) {
  .doc-layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .doc-toc { display: none; }
}
@media (max-width: 820px) {
  .menu-toggle { display: inline-flex; }
  .doc-layout { grid-template-columns: 1fr; }
  .doc-nav {
    position: fixed; top: var(--header-h); left: 0; width: 280px; max-width: 86vw;
    background: var(--bg); z-index: 40; transform: translateX(-105%);
    transition: transform .18s ease; box-shadow: 0 0 40px rgba(0,0,0,.5);
  }
  body.nav-open .doc-nav { transform: translateX(0); }
  .doc-main { padding: 22px 20px 64px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}