/* ============================================================
   MIRR Documentation — Zero-Dependency Static Site
   Design system: Mission Control Dark
   Colors: Ouroboros triad — Cyan #00E5FF, Violet #8B5CF6, Green #22C55E
   ============================================================ */

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

:root {
  /* Ouroboros triad */
  --cyan:     #00E5FF;
  --violet:   #8B5CF6;
  --green:    #22C55E;

  /* Mission Control palette */
  --bg:       #0b1020;
  --bg-nav:   #080c14;
  --bg-card:  #0d1521;
  --bg-code:  #060a12;
  --text:     #b0bec5;
  --text-bright: #e2e8f0;
  --text-dim: #64748b;
  --border:   #1c2534;
  --accent:   #4db8d9;

  /* Callouts */
  --note-bg:    #1a3a5c;
  --note-border:#4db8d9;
  --warn-bg:    #5c4a11;
  --warn-border:#d69e2e;
  --err-bg:     #5c1a1a;
  --err-border: #e05252;
  --tip-bg:     #134e2a;
  --tip-border: #22c55e;

  /* Typography */
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, monospace;

  /* Layout */
  --nav-width:  260px;
  --max-content: 860px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

/* Skip navigation link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.5rem 1rem;
  background: var(--cyan);
  color: var(--bg);
  font-weight: 700;
  border-radius: 0 0 6px 6px;
  text-decoration: none;
}
.skip-link:focus {
  top: 0;
}

/* ============================================================
   Layout — CSS Grid, sidebar + content
   ============================================================ */

.site {
  display: grid;
  grid-template-columns: var(--nav-width) 1fr;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

.site-header {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .logo {
  width: 36px;
  height: 36px;
}

.site-header h1 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 0.08em;
}

.site-header h1 span {
  font-weight: 400;
  color: var(--text-dim);
  margin-left: 0.5rem;
  font-size: 0.85rem;
  letter-spacing: normal;
}

.site-header .github-link {
  margin-left: auto;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--mono);
}

.site-header .github-link:hover {
  color: var(--cyan);
}

/* Sidebar nav */
.site-nav {
  grid-row: 2;
  background: var(--bg-nav);
  border-right: 1px solid var(--border);
  padding: 1.5rem 0;
  position: sticky;
  top: 56px;
  height: calc(100vh - 56px);
  overflow-y: auto;
  scrollbar-width: none;
}
.site-nav::-webkit-scrollbar { display: none; }

.site-nav a {
  display: block;
  padding: 0.45rem 1.5rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  border-left: 3px solid transparent;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.site-nav a:hover {
  color: var(--text-bright);
  background: var(--bg-card);
  border-left-color: var(--cyan);
}

.site-nav a.active {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--bg-card);
  font-weight: 600;
}

.site-nav .paper-link {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.site-nav .paper-link a {
  color: var(--violet);
  font-weight: 600;
}

.site-nav .paper-link a:hover {
  color: var(--cyan);
  border-left-color: var(--violet);
}

/* Content wrapper — holds optional TOC aside + main */
.content-wrapper {
  grid-row: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 2rem;
  min-height: calc(100vh - 120px);
  overflow-x: clip;
}
.content-with-toc {
  max-width: none;
}
.page-toc-container {
  order: 2;
  position: sticky;
  top: 80px;
  align-self: start;
  max-height: 40vh;
  overflow-y: auto;
  scrollbar-width: none;
  margin-bottom: 1.5rem;
}
.page-toc-container:hover { scrollbar-width: thin; }
.page-toc-container::-webkit-scrollbar { width: 6px; background: transparent; }
.page-toc-container::-webkit-scrollbar-thumb { background: transparent; border-radius: 4px; }
.page-toc-container:hover::-webkit-scrollbar-thumb { background: rgba(148,163,184,.2); }
@media (min-width: 1100px) {
  .content-wrapper:has(.page-toc-container) {
    grid-template-columns: 1fr 220px;
  }
  .page-toc-container {
    max-height: calc(100vh - 100px);
    margin-bottom: 0;
  }
}

/* Main content */
.site-content {
  padding: 2.5rem 3rem;
  max-width: calc(var(--max-content) + 6rem);
  overflow-x: hidden;
}

.site-footer {
  grid-column: 1 / -1;
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* ============================================================
   Typography
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
  color: var(--text-bright);
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

h1 { font-size: 1.75rem; margin-top: 0; }
h2 { font-size: 1.35rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; }
h3 { font-size: 1.1rem; }
h4 { font-size: 0.95rem; }

p { margin-bottom: 1rem; max-width: 70ch; }

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

a:hover {
  color: var(--cyan);
  text-decoration: underline;
}

strong { color: var(--text-bright); }

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li { margin-bottom: 0.3rem; }

/* ============================================================
   Code
   ============================================================ */

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-code);
  color: var(--accent);
  padding: 0.15em 0.35em;
  border-radius: 3px;
}
/* Inside code blocks, let syntax highlighting control color */
pre code {
  color: var(--text-bright);
  background: none;
  padding: 0;
  font-size: 0.85rem;
}

pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  scrollbar-width: thin;
  margin-bottom: 1.25rem;
  line-height: 1.5;
}
pre::-webkit-scrollbar { width: 6px; height: 6px; background: transparent; }
pre::-webkit-scrollbar-thumb { background: rgba(148,163,184,.2); border-radius: 4px; }


/* ============================================================
   Tables
   ============================================================ */

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

th {
  text-align: left;
  font-weight: 700;
  color: var(--text-bright);
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--border);
  background: var(--bg-card);
}

td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

tr:hover td {
  background: var(--bg-card);
}

/* ============================================================
   Callouts
   ============================================================ */

.callout {
  border-left: 3px solid;
  border-radius: 4px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.callout-title {
  font-weight: 700;
  margin-bottom: 0.25rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.callout.note     { background: var(--note-bg); border-color: var(--note-border); }
.callout.note .callout-title { color: var(--note-border); }
.callout.warning  { background: var(--warn-bg); border-color: var(--warn-border); }
.callout.warning .callout-title { color: var(--warn-border); }
.callout.important { background: var(--err-bg); border-color: var(--err-border); }
.callout.important .callout-title { color: var(--err-border); }
.callout.tip      { background: var(--tip-bg); border-color: var(--tip-border); }
.callout.tip .callout-title { color: var(--tip-border); }

/* ============================================================
   Hero (home page)
   ============================================================ */

.mirr-hero {
  text-align: center;
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.mirr-hero .mirr-hero-logo {
  width: 128px;
  height: 128px;
  margin-bottom: 1rem;
}

.mirr-hero .mirr-hero-title {
  font-size: 2rem;
  letter-spacing: 0.15em;
  margin-bottom: 0.25rem;
}

.mirr-hero .mirr-tagline {
  color: var(--text-dim);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.mirr-hero .mirr-subline {
  color: var(--text-dim);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.mirr-hero .mirr-status-bar {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.8rem;
  font-family: var(--mono);
  color: var(--text-dim);
}

.mirr-hero .mirr-status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.mirr-hero .mirr-status-dot.green  { background: var(--green); }
.mirr-hero .mirr-status-dot.amber  { background: #f59e0b; }
.mirr-hero .mirr-status-dot.blue   { background: var(--cyan); }

/* Feature cards */
.mirr-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.mirr-feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  text-align: center;
}

.mirr-feature-card h3 {
  margin-top: 0;
  font-size: 1rem;
}
.mirr-feature-card:nth-child(1) h3 code { color: var(--cyan); }    /* signal — cyan */
.mirr-feature-card:nth-child(2) h3 code { color: var(--green); }   /* guard — green */
.mirr-feature-card:nth-child(3) h3 code { color: var(--violet); }  /* reflex — violet */

.mirr-feature-card .icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.mirr-feature-card p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0;
}

/* ============================================================
   Responsive
   ============================================================ */

.menu-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.8rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .site {
    grid-template-columns: 1fr;
  }

  .mirr-features {
    grid-template-columns: 1fr;
  }

  .site-nav {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
    display: none;
  }

  .site-nav.open {
    display: block;
  }

  .site-content {
    padding: 1.5rem 1rem;
  }

  .menu-toggle {
    display: block;
  }
}

@media (min-width: 769px) {
  .menu-toggle {
    display: none;
  }
}

/* ============================================================
   Print
   ============================================================ */

@media print {
  .site-nav,
  .site-header,
  .site-footer,
  .menu-toggle { display: none; }

  .site { display: block; }
  .site-content { padding: 0; max-width: 100%; }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  a { color: #000; text-decoration: underline; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; }

  pre, code {
    background: #f5f5f5;
    border: 1px solid #ccc;
  }

  .callout { background: #f5f5f5 !important; border-color: #ccc !important; }
  .callout .callout-title { color: #000; }

  .mirr-kw, .mirr-signal { color: #0077b6; }
  .mirr-guard, .mirr-type { color: #2d6a4f; }
  .mirr-reflex, .mirr-dir { color: #6a0dad; }
  .mirr-num, .mirr-bool { color: #b45309; }
  .mirr-op, .mirr-name { color: #000; }
  .mirr-cmt { color: #555; }
  .mirr-tmpl { color: #b45309; }
  .mirr-ann { color: #6a0dad; }
  .mirr-tag { color: #9d174d; }

  th { background: #eee; color: #000; }
  strong { color: #000; }
  code { color: #0077b6; }
  .page-toc a { color: #333; }

  .hl-kw, .hl-fn { color: #0077b6; }
  .hl-type { color: #2d6a4f; }
  .hl-str, .hl-num { color: #b45309; }
  .hl-cmt { color: #555; }
  .hl-var { color: #6a0dad; }
  .hl-op { color: #000; }

  td { word-break: break-all; }
}

/* ===== MIRR syntax highlighting — Ouroboros triad ===== */
.mirr-kw     { color: #00E5FF; font-weight: 600; }   /* General keywords (cyan) */
.mirr-signal { color: #00E5FF; font-weight: 600; }   /* Signal construct (cyan) */
.mirr-guard  { color: #22C55E; font-weight: 600; }   /* Guard construct (green) */
.mirr-reflex { color: #8B5CF6; font-weight: 600; }   /* Reflex construct (violet) */
.mirr-dir    { color: #8B5CF6; }
.mirr-type   { color: #22C55E; }
.mirr-num    { color: #f59e0b; }
.mirr-bool   { color: #f59e0b; }
.mirr-op     { color: #94a3b8; }
.mirr-cmt    { color: #6b7280; font-style: italic; }
.mirr-name   { color: #f1f5f9; }
.mirr-tmpl   { color: #fb923c; }
.mirr-ann    { color: #c084fc; font-style: italic; }
.mirr-tag    { color: #f472b6; }

/* ===== Generic syntax highlighting (bash, rust, json, toml, asm, lisp) ===== */
.hl-kw   { color: #00E5FF; font-weight: 600; }  /* keywords — cyan */
.hl-type { color: #22C55E; }                      /* types — green */
.hl-str  { color: #fbbf24; }                      /* strings — amber */
.hl-num  { color: #f59e0b; }                      /* numbers/booleans — orange */
.hl-cmt  { color: #6b7280; font-style: italic; }  /* comments — dim */
.hl-var  { color: #c084fc; }                       /* variables — violet */
.hl-fn   { color: #34d399; }                       /* functions/commands — mint */
.hl-op   { color: #94a3b8; }                       /* operators — slate */
/* ===== Per-page TOC ===== */
.page-toc {
  font-size: 0.8rem;
  padding-left: 1rem;
  border-left: 1px solid var(--border, rgba(148,163,184,.12));
}
.page-toc .toc-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin: 0 0 0.5rem;
  padding: 0;
  border: none;
}
.page-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.page-toc li { margin-bottom: 0.15rem; }
.page-toc .toc-h3 { padding-left: 0.75rem; }
.page-toc a { color: var(--text-dim, #b0bec5); text-decoration: none; display: block; padding: 0.2rem 0; }
.page-toc a:hover { color: var(--accent, #00E5FF); }
.page-toc a.active { color: var(--accent, #00E5FF); font-weight: 600; }

/* ===== Hero enhancement ===== */
.mirr-hero { position: relative; isolation: isolate; }
.mirr-hero > * { position: relative; z-index: 1; }
.mirr-hero .mirr-hero-title {
  background: linear-gradient(135deg, #00E5FF, #8B5CF6, #22C55E);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mirr-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,229,255,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.mirr-hero .mirr-hero-logo {
  filter: drop-shadow(0 0 24px rgba(0, 229, 255, 0.15));
}

/* ===== Search widget (in header bar) ===== */
.search-container {
  position: relative;
  flex: 1;
  max-width: 320px;
  margin-right: 1rem;
  z-index: 100;
}
.search-input {
  width: 100%;
  padding: 0.4rem 0.75rem;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-bright);
  font-size: 0.85rem;
  font-family: var(--mono);
}
.search-input::placeholder { color: var(--text-dim); }
.search-input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 2px rgba(0,229,255,.15); }
.search-results {
  list-style: none; padding: 0; margin: 0;
  position: absolute; top: 100%; left: 0; right: 0; z-index: 100;
  background: var(--bg-nav);
  border: 1px solid var(--border);
  border-radius: 6px;
  max-height: 320px; overflow-y: auto;
  scrollbar-width: thin;
}
.search-results::-webkit-scrollbar { width: 6px; background: transparent; }
.search-results::-webkit-scrollbar-thumb { background: rgba(148,163,184,.2); border-radius: 4px; }
.search-results:empty { display: none; }
.search-results li { padding: 0.5rem 0.75rem; border-bottom: 1px solid rgba(148,163,184,.08); }
.search-results li:last-child { border-bottom: none; }
.search-results li:hover { background: var(--bg-code); }
.search-results a { color: var(--text-bright); text-decoration: none; display: block; }
.search-results .sr-title { display: block; font-size: 0.8rem; font-weight: 600; }
.search-results .sr-snippet { display: block; font-size: 0.72rem; color: var(--text-dim); margin-top: 0.1rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }