/* Continuous Control Docs — house dark theme
   Tokens match the Continuous collateral system (setup-guide.html, marketing/slides). */

:root{
  --brand:#8B5CF6; --brand-hi:#A78BFA; --brand-soft:rgba(139,92,246,.14);
  --ink:#fff; --muted:rgba(255,255,255,.68); --faint:rgba(255,255,255,.42);
  --canvas:#060E1A; --panel:#0B1626; --panel-hi:#0E1C30;
  --hair:rgba(255,255,255,.09); --line:#1C2E42;
  --cc-hair:rgba(139,92,246,.32); --cc-box:rgba(139,92,246,.09);
  --good:#34D399; --warn:#FBBF24; --sf:#00A1E0; --ns:#F4AF3D;
  --font:"DM Sans","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"DM Mono",ui-monospace,"Fira Code",monospace;
  --topbar-h:56px; --sidebar-w:272px; --toc-w:220px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html:focus-within{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

body{
  margin:0;font-family:var(--font);color:var(--ink);font-size:15px;line-height:1.65;
  background:
    radial-gradient(ellipse 70% 40% at 50% -5%,rgba(139,92,246,.13),transparent 60%),
    var(--canvas);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}

a{color:var(--brand-hi);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
:focus-visible{outline:2px solid var(--brand-hi);outline-offset:2px;border-radius:3px}

/* ---------- Topbar ---------- */
.topbar{
  position:fixed;inset:0 0 auto 0;height:var(--topbar-h);z-index:60;
  display:flex;align-items:center;gap:14px;padding:0 20px;
  background:rgba(6,14,26,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--hair);
}
.topbar .burger{
  display:none;background:none;border:1px solid var(--hair);border-radius:8px;color:var(--ink);
  width:34px;height:34px;font-size:16px;cursor:pointer;line-height:1;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand img.lockup{height:34px;display:block;filter:brightness(0) invert(1)}
.brand .docs-chip{
  font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--brand-hi);
  border:1px solid var(--cc-hair);background:var(--cc-box);border-radius:999px;padding:3px 10px;
}
.topbar .spacer{flex:1}
.topbar .ver{font-family:var(--mono);font-size:11.5px;color:var(--faint)}

/* ---------- Shell ---------- */
.shell{display:block;padding-top:var(--topbar-h)}

/* ---------- Sidebar ---------- */
.sidebar{
  position:fixed;top:var(--topbar-h);bottom:0;left:0;width:var(--sidebar-w);z-index:50;
  overflow-y:auto;overscroll-behavior:contain;
  padding:18px 14px 40px 20px;border-right:1px solid var(--hair);
  background:linear-gradient(180deg,rgba(11,22,38,.5),rgba(6,14,26,0) 220px);
  scrollbar-width:thin;scrollbar-color:var(--line) transparent;
}
.sidebar .filter{
  width:100%;margin:0 0 16px;padding:8px 11px;border-radius:8px;
  border:1px solid var(--hair);background:var(--panel);color:var(--ink);
  font-family:var(--font);font-size:13px;
}
.sidebar .filter::placeholder{color:var(--faint)}
.sidebar .filter:focus{outline:none;border-color:var(--cc-hair)}
.nav-sec{margin:0 0 6px}
.nav-sec>button.sec-head{
  display:flex;align-items:center;justify-content:space-between;width:100%;
  background:none;border:none;cursor:pointer;padding:8px 8px 8px 6px;
  color:var(--faint);font-family:var(--font);font-size:11px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
}
.nav-sec>button.sec-head:hover{color:var(--muted)}
.nav-sec .chev{transition:transform .18s ease;font-size:10px}
.nav-sec.closed .chev{transform:rotate(-90deg)}
.nav-sec ul{list-style:none;margin:0 0 10px;padding:0}
.nav-sec.closed ul{display:none}
.nav-sec li a{
  display:block;padding:5.5px 10px;margin:1px 0;border-radius:7px;
  color:var(--muted);font-size:13.5px;line-height:1.4;border-left:2px solid transparent;
}
.nav-sec li a:hover{color:var(--ink);background:rgba(255,255,255,.04);text-decoration:none}
.nav-sec li a.active{
  color:var(--brand-hi);background:var(--cc-box);
  border-left:2px solid var(--brand);border-top-left-radius:0;border-bottom-left-radius:0;
}
.nav-hit-hidden{display:none!important}

/* ---------- Content ---------- */
.doc{
  margin-left:var(--sidebar-w);padding:44px 48px 90px;
  max-width:calc(var(--sidebar-w) + 800px);
}
@media (min-width:1280px){
  .doc{margin-right:calc(var(--toc-w) + 24px)}
}
.eyebrow{
  font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-hi);margin:0 0 10px;
}
h1{font-size:30px;line-height:1.2;font-weight:700;letter-spacing:-.015em;margin:0 0 12px}
.lede{font-size:16.5px;color:var(--muted);margin:0 0 28px;max-width:64ch}
h2{
  font-size:20px;font-weight:700;letter-spacing:-.01em;margin:44px 0 12px;
  padding-top:26px;border-top:1px solid var(--hair);
}
h2:first-of-type{border-top:none;padding-top:0}
h3{font-size:16px;font-weight:700;margin:28px 0 8px}
p{margin:0 0 14px;max-width:72ch}
ul,ol{margin:0 0 14px;padding-left:22px}
li{margin:0 0 6px;max-width:68ch}
strong{font-weight:700;color:var(--ink)}
hr{border:none;border-top:1px solid var(--hair);margin:32px 0}

code{
  font-family:var(--mono);font-size:.86em;color:#D9D2FF;
  background:rgba(139,92,246,.10);border:1px solid rgba(139,92,246,.16);
  border-radius:5px;padding:1px 5px;white-space:nowrap;
}
pre{
  background:var(--panel);border:1px solid var(--hair);border-radius:10px;
  padding:16px 18px;overflow-x:auto;margin:0 0 18px;line-height:1.6;
}
pre code{background:none;border:none;padding:0;white-space:pre;color:#CFE0F4;font-size:12.5px}
pre .c{color:var(--faint)} pre .k{color:var(--brand-hi)} pre .s{color:#7DD3A8} pre .n{color:#F0B45C}

table{border-collapse:collapse;width:100%;margin:0 0 20px;font-size:13.5px;display:block;overflow-x:auto}
th{
  text-align:left;color:var(--faint);font-size:11px;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;padding:8px 14px 8px 0;border-bottom:1px solid var(--line);
}
td{padding:9px 14px 9px 0;border-bottom:1px solid var(--hair);vertical-align:top;color:var(--muted)}
td:first-child{color:var(--ink)}
td code{white-space:nowrap}

/* Callouts */
.note,.tip,.warn-box{
  border:1px solid var(--hair);border-left:3px solid var(--brand);
  background:var(--panel);border-radius:0 10px 10px 0;padding:13px 16px;margin:0 0 18px;
  font-size:14px;color:var(--muted);
}
.note b:first-child,.tip b:first-child,.warn-box b:first-child{color:var(--ink)}
.tip{border-left-color:var(--good)}
.warn-box{border-left-color:var(--warn)}

/* Figures / screenshots */
figure{margin:0 0 22px}
figure img{
  max-width:100%;border:1px solid var(--hair);border-radius:10px;display:block;
  box-shadow:0 14px 40px rgba(0,0,0,.35);
}
figcaption{font-size:12.5px;color:var(--faint);margin-top:8px}
.diagram{margin:6px 0 24px}
.diagram svg{max-width:100%;height:auto;display:block}

/* Cards (home + section landings) */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:12px;margin:0 0 22px}
.card{
  display:block;background:var(--panel);border:1px solid var(--hair);border-radius:12px;
  padding:16px 16px 14px;color:var(--ink);transition:border-color .15s ease,transform .15s ease;
}
.card:hover{border-color:var(--cc-hair);text-decoration:none;transform:translateY(-1px)}
.card .t{font-weight:700;font-size:14.5px;margin:0 0 5px;display:flex;align-items:center;gap:8px}
.card .d{font-size:13px;color:var(--muted);line-height:1.5}

/* Stub marker (Phase 1 only) */
.stub{
  border:1px dashed var(--cc-hair);background:var(--cc-box);border-radius:10px;
  padding:12px 16px;margin:26px 0;font-size:13.5px;color:var(--muted);
}
.stub b{color:var(--brand-hi)}

/* Prev / next */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:56px}
.pager a{
  border:1px solid var(--hair);background:var(--panel);border-radius:12px;padding:13px 16px;
  color:var(--ink);display:block;transition:border-color .15s ease;
}
.pager a:hover{border-color:var(--cc-hair);text-decoration:none}
.pager .lbl{font-size:11px;color:var(--faint);letter-spacing:.1em;text-transform:uppercase;font-weight:700}
.pager .ttl{font-size:14px;font-weight:600;margin-top:3px;color:var(--brand-hi)}
.pager a.next{text-align:right}
.pager a.spacer-cell{visibility:hidden}

/* ---------- Right rail TOC ---------- */
.toc{
  display:none;position:fixed;top:calc(var(--topbar-h) + 44px);right:22px;width:var(--toc-w);
  max-height:calc(100vh - var(--topbar-h) - 80px);overflow-y:auto;font-size:12.5px;
}
@media (min-width:1280px){.toc{display:block}}
.toc .toc-head{
  font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);
  margin:0 0 8px;
}
.toc ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--hair)}
.toc li a{display:block;color:var(--muted);padding:3.5px 0 3.5px 12px;border-left:2px solid transparent;margin-left:-1px;line-height:1.45}
.toc li a:hover{color:var(--ink);text-decoration:none}
.toc li a.active{color:var(--brand-hi);border-left-color:var(--brand)}
.toc li.h3 a{padding-left:24px;font-size:12px}

/* ---------- Mobile ---------- */
@media (max-width:900px){
  .topbar .burger{display:block}
  .sidebar{transform:translateX(-105%);transition:transform .2s ease;background:var(--canvas);width:min(310px,86vw);box-shadow:24px 0 60px rgba(0,0,0,.5)}
  body.nav-open .sidebar{transform:none}
  .doc{margin-left:0;padding:30px 20px 70px}
  .pager{grid-template-columns:1fr}
  .pager a.next{text-align:left}
}