/* ============================================================
   GammaOS Nano wiki - bright spectrum theme
   ============================================================ */
:root{
  --spectrum: linear-gradient(90deg,#ff3ca6 0%,#8b3cff 28%,#2b6bff 52%,#12c9e6 74%,#37e29a 100%);
  --spectrum-soft: linear-gradient(120deg,rgba(255,60,166,.16),rgba(139,60,255,.14),rgba(43,107,255,.12),rgba(18,201,230,.12),rgba(55,226,154,.14));

  --bg:#f7f7fc;
  --bg-2:#ffffff;
  --panel:#ffffff;
  --panel-2:#f2f1fa;
  --ink:#17151f;
  --ink-soft:#4a4860;
  --ink-faint:#7c7a92;
  --line:#e7e5f2;
  --line-strong:#d8d5ea;
  --accent:#7b2ff7;
  --accent-2:#2b6bff;
  --accent-ink:#6d28d9;
  --pink:#ff3ca6;
  --cyan:#0bb6d6;
  --green:#1eb877;
  --amber:#e0930b;
  --code-bg:#f2f1fa;
  --shadow:0 1px 2px rgba(24,20,40,.05),0 8px 24px rgba(60,40,120,.07);
  --shadow-lg:0 12px 40px rgba(60,40,120,.14);
  --radius:14px;
  --radius-sm:9px;
  --sidebar-w:270px;
  --toc-w:210px;
  --topbar-h:60px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-head:'Space Grotesk','Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
html[data-theme="dark"]{
  --bg:#0c0b12;
  --bg-2:#131120;
  --panel:#16142099;
  --panel-2:#1b1930;
  --ink:#ecebf7;
  --ink-soft:#b4b1cc;
  --ink-faint:#847fa2;
  --line:#262238;
  --line-strong:#332d4a;
  --accent:#b58bff;
  --accent-2:#6ea8ff;
  --accent-ink:#c4a6ff;
  --code-bg:#171528;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 16px 50px rgba(0,0,0,.5);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--topbar-h) + 16px)}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font);font-size:15.5px;line-height:1.68;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(60% 55% at 88% -8%,rgba(139,60,255,.12),transparent 60%),
    radial-gradient(55% 50% at -5% 8%,rgba(43,107,255,.10),transparent 60%),
    radial-gradient(50% 40% at 60% 108%,rgba(55,226,154,.08),transparent 60%);
}
a{color:var(--accent-ink);text-decoration:none}
a:hover{text-decoration:underline}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px;z-index:200}
.skip:focus{left:12px;top:10px}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:60;height:var(--topbar-h);
  display:flex;align-items:center;gap:16px;padding:0 20px;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--spectrum);opacity:.9}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-head);font-weight:600;font-size:18px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-text b{font-weight:700}
.brand-mark{
  width:28px;height:28px;border-radius:8px;flex:0 0 auto;object-fit:cover;
  box-shadow:0 3px 10px rgba(0,0,0,.35);border:1px solid var(--line-strong);
  background:#0a0a0f;
}

.search{position:relative;flex:1;max-width:440px;margin:0 auto}
#search-input{
  width:100%;height:38px;border-radius:10px;border:1px solid var(--line-strong);
  background:var(--bg-2);color:var(--ink);padding:0 14px;font-size:14.5px;font-family:var(--font);
  transition:border-color .15s,box-shadow .15s;
}
#search-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
.search-results{
  position:absolute;top:46px;left:0;right:0;max-height:60vh;overflow:auto;
  background:var(--bg-2);border:1px solid var(--line-strong);border-radius:12px;box-shadow:var(--shadow-lg);padding:6px;z-index:80;
}
.search-results a{display:block;padding:9px 12px;border-radius:8px;color:var(--ink)}
.search-results a:hover,.search-results a.active{background:var(--panel-2);text-decoration:none}
.search-results .sr-group{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-ink);font-weight:600}
.search-results .sr-title{font-weight:600}
.search-results .sr-snip{font-size:12.5px;color:var(--ink-faint);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.search-results .sr-empty{padding:14px;color:var(--ink-faint)}
.search-results mark{background:color-mix(in srgb,var(--pink) 30%,transparent);color:inherit;border-radius:3px;padding:0 2px}

.topbar-actions{display:flex;align-items:center;gap:10px}
.ghost-btn{
  border:1px solid var(--line-strong);border-radius:9px;padding:7px 13px;color:var(--ink-soft);
  font-size:13.5px;font-weight:500;background:var(--bg-2);
}
.ghost-btn:hover{border-color:var(--accent);color:var(--accent-ink);text-decoration:none}
.theme-btn{width:38px;height:38px;border-radius:9px;border:1px solid var(--line-strong);background:var(--bg-2);cursor:pointer;display:grid;place-items:center}
.theme-ico{width:16px;height:16px;border-radius:50%;background:var(--spectrum)}
html[data-theme="dark"] .theme-ico{background:radial-gradient(circle at 65% 35%,#fff 0 45%,transparent 46%),var(--accent)}
.menu-toggle{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:6px}
.menu-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- layout ---------- */
.layout{display:flex;align-items:flex-start;max-width:1400px;margin:0 auto}
.sidebar{
  position:sticky;top:var(--topbar-h);width:var(--sidebar-w);flex:0 0 var(--sidebar-w);
  height:calc(100vh - var(--topbar-h));overflow-y:auto;padding:22px 14px 60px;border-right:1px solid var(--line);
}
.nav-home{
  display:flex;align-items:center;gap:9px;font-weight:600;color:var(--ink);padding:8px 12px;border-radius:9px;margin-bottom:10px;
}
.nav-home:hover{background:var(--panel-2);text-decoration:none}
.nav-home.active{background:var(--spectrum-soft);color:var(--accent-ink)}
.nav-home-mark{color:var(--accent)}
.nav-group{margin:16px 0 2px}
.nav-group-title{font-family:var(--font-head);font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint);font-weight:600;padding:0 12px 6px}
.nav-group ul{list-style:none;margin:0;padding:0}
.nav-group li a{
  display:flex;align-items:center;gap:9px;padding:7px 12px;border-radius:9px;color:var(--ink-soft);font-size:14.3px;font-weight:500;
  border-left:2.5px solid transparent;
}
.nav-group li a:hover{background:var(--panel-2);color:var(--ink);text-decoration:none}
.nav-group li a.active{
  background:var(--panel-2);color:var(--accent-ink);border-left-color:var(--accent);
}
.nav-ico{font-size:15px;width:18px;text-align:center;filter:grayscale(.1)}

/* ---------- main / prose ---------- */
main{flex:1;min-width:0;padding:0 0 60px}
.prose{display:grid;grid-template-columns:minmax(0,1fr) var(--toc-w);gap:40px;max-width:1000px;margin:0 auto;padding:34px 34px 0}
.prose.no-toc{grid-template-columns:minmax(0,1fr);max-width:820px}
.article{min-width:0}

.article h1,.article h2,.article h3,.article h4{font-family:var(--font-head);line-height:1.22;color:var(--ink);font-weight:600}
.article h1{font-size:2.15rem;margin:.2em 0 .5em;letter-spacing:-.01em}
.article h2{font-size:1.5rem;margin:2.1em 0 .55em;padding-top:.5em;border-top:1px solid var(--line)}
.article h2:first-of-type{border-top:0;padding-top:0}
.article h3{font-size:1.18rem;margin:1.6em 0 .4em}
.article h4{font-size:1.02rem;margin:1.3em 0 .3em;color:var(--ink-soft)}
.article h2 .headerlink,.article h3 .headerlink{opacity:0;margin-left:.4em;color:var(--accent);font-weight:400;text-decoration:none}
.article h2:hover .headerlink,.article h3:hover .headerlink{opacity:.7}
.article p,.article li{color:var(--ink)}
.article ul,.article ol{padding-left:1.3em}
.article li{margin:.3em 0}
.article li::marker{color:var(--accent)}
.article strong{font-weight:600}
.lead{font-size:1.16rem;line-height:1.6;color:var(--ink-soft)}

/* code */
code{font-family:var(--font-mono);font-size:.86em;background:var(--code-bg);border:1px solid var(--line);border-radius:6px;padding:.12em .4em}
pre{background:var(--code-bg);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;overflow:auto;box-shadow:var(--shadow)}
pre code{background:none;border:0;padding:0;font-size:13.2px;line-height:1.6}
.codehilite{margin:1.1em 0}

kbd{
  font-family:var(--font-head);font-size:.8em;font-weight:600;
  background:var(--bg-2);border:1px solid var(--line-strong);border-bottom-width:2px;border-radius:6px;padding:.15em .5em;color:var(--ink);
  box-shadow:0 1px 0 var(--line-strong);white-space:nowrap;
}

/* tables */
.article table{width:100%;border-collapse:separate;border-spacing:0;margin:1.3em 0;font-size:14px;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow)}
.article thead th{background:var(--panel-2);font-family:var(--font-head);font-weight:600;text-align:left;color:var(--ink);font-size:13px;letter-spacing:.01em}
.article th,.article td{padding:9px 13px;border-bottom:1px solid var(--line);vertical-align:top}
.article tbody tr:last-child td{border-bottom:0}
.article tbody tr:nth-child(even){background:color-mix(in srgb,var(--panel-2) 45%,transparent)}
.article td code{white-space:nowrap}

/* links in prose get spectrum underline on hover */
.article a{background-image:var(--spectrum);background-size:0% 2px;background-repeat:no-repeat;background-position:0 100%;transition:background-size .2s}
.article a:hover{text-decoration:none;background-size:100% 2px}

/* images / screenshots */
.article img{max-width:100%;border-radius:var(--radius);display:block}
.article p > img,.shotframe img{
  border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);margin:1.2em auto;background:#000;
}
figure{margin:1.4em 0;text-align:center}
figure img{margin:0 auto}
figcaption{font-size:13px;color:var(--ink-faint);margin-top:.6em}

/* callouts via blockquote and .note/.tip/.warn */
blockquote{margin:1.2em 0;padding:12px 16px;border-left:3px solid var(--accent);background:var(--panel-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink-soft)}
blockquote p{margin:.3em 0}

/* shortcut / hint boxes authored with attr_list: {: .callout .tip } */
.callout{margin:1.3em 0;padding:14px 16px 14px 48px;border-radius:var(--radius-sm);position:relative;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow)}
.callout::before{position:absolute;left:15px;top:13px;font-size:18px}
.callout p:first-child{margin-top:0}.callout p:last-child{margin-bottom:0}
.callout.tip{border-color:color-mix(in srgb,var(--green) 40%,var(--line));background:color-mix(in srgb,var(--green) 7%,var(--panel))}
.callout.tip::before{content:"💡"}
.callout.note{border-color:color-mix(in srgb,var(--accent-2) 40%,var(--line));background:color-mix(in srgb,var(--accent-2) 7%,var(--panel))}
.callout.note::before{content:"ℹ️"}
.callout.warn{border-color:color-mix(in srgb,var(--amber) 45%,var(--line));background:color-mix(in srgb,var(--amber) 9%,var(--panel))}
.callout.warn::before{content:"⚠️"}

/* ---------- TOC ---------- */
.toc-col{position:relative}
.toc{position:sticky;top:calc(var(--topbar-h) + 24px);font-size:13.3px;border-left:1px solid var(--line);padding-left:16px}
.toc-title{font-family:var(--font-head);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);font-weight:600;margin-bottom:8px}
.toc ul{list-style:none;margin:0;padding:0}
.toc ul ul{padding-left:12px}
.toc li a{display:block;padding:3.5px 0;color:var(--ink-faint);border-left:2px solid transparent;padding-left:10px;margin-left:-11px}
.toc li a:hover{color:var(--ink);text-decoration:none}
.toc li a.active{color:var(--accent-ink);border-left-color:var(--accent);font-weight:500}

.page-foot{margin-top:3em;padding-top:1.4em;border-top:1px solid var(--line);color:var(--ink-faint);font-size:13px}

/* ---------- hero ---------- */
.home .prose{max-width:1120px;padding-top:20px}
.hero{position:relative;max-width:1120px;margin:0 auto;padding:60px 34px 30px;overflow:hidden}
.hero-glow{position:absolute;inset:0;z-index:0;background:var(--spectrum-soft);filter:blur(10px);opacity:.9;border-radius:30px}
.hero-inner{position:relative;z-index:1;max-width:640px}
.hero-logo-tile{width:104px;height:104px;border-radius:22px;margin:0 0 22px;display:grid;place-items:center;
  background:radial-gradient(120% 120% at 30% 20%,#1b1930,#0b0a12);
  border:1px solid var(--line-strong);box-shadow:0 12px 40px rgba(123,47,247,.28),0 2px 8px rgba(0,0,0,.4);position:relative}
.hero-logo-tile::after{content:"";position:absolute;inset:-2px;border-radius:24px;padding:2px;background:var(--spectrum);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.7}
.hero-logo-tile img{width:62px;height:62px}
.hero-eyebrow{font-family:var(--font-head);text-transform:uppercase;letter-spacing:.14em;font-size:12.5px;font-weight:600;color:var(--accent-ink);margin:0 0 12px}
.hero-title{font-family:var(--font-head);font-size:3.3rem;line-height:1.05;margin:0 0 16px;letter-spacing:-.02em;font-weight:700}
.grad{background:var(--spectrum);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:1.18rem;color:var(--ink-soft);margin:0 0 26px;max-width:560px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:11px;font-weight:600;font-size:14.5px;border:1px solid var(--line-strong);background:var(--bg-2);color:var(--ink);transition:transform .12s,box-shadow .15s,border-color .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px);border-color:var(--accent);box-shadow:var(--shadow)}
.btn.primary{background:var(--spectrum);border:0;color:#fff;box-shadow:0 6px 20px rgba(123,47,247,.35)}
.btn.primary:hover{box-shadow:0 10px 28px rgba(123,47,247,.45)}
.hero-shots{position:relative;z-index:1;display:flex;gap:16px;justify-content:center;margin-top:44px;flex-wrap:wrap}
.hero-shots .shot{width:230px;max-width:44vw;border-radius:16px;border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);transition:transform .2s}
.hero-shots .shot:hover{transform:translateY(-4px) scale(1.02)}
.shot-a{transform:rotate(-3deg)}.shot-b{transform:translateY(-12px)}.shot-c{transform:rotate(3deg)}
.hero-shots:hover .shot{transform:none}

/* card grid used on home + landing pages (authored as raw HTML) */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;margin:1.6em 0}
.card{display:block;padding:20px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);transition:transform .14s,box-shadow .15s,border-color .15s}
.card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.card h3{margin:.1em 0 .35em;font-size:1.08rem}
.card p{margin:0;color:var(--ink-soft);font-size:13.8px}
.card .card-ico{font-size:22px;display:block;margin-bottom:8px}
.card .card-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--accent-ink);font-weight:600}

/* theme showcase trio */
.theme-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:1.6em 0}
.theme-trio figure{margin:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.theme-trio img{border-radius:0;border:0;margin:0;box-shadow:none;width:100%}
.theme-trio figcaption{padding:12px 14px;text-align:left}
.theme-trio figcaption b{font-family:var(--font-head)}

/* button glyph chips for controls docs */
.btnchip{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 7px;border-radius:7px;background:var(--spectrum-soft);border:1px solid var(--line-strong);font-family:var(--font-head);font-weight:600;font-size:12.5px;color:var(--accent-ink)}

/* embedded UI videos */
.ui-video-fig{margin:1.6em auto;max-width:440px;text-align:center}
.ui-video{width:100%;max-width:440px;aspect-ratio:1/1;border-radius:16px;border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);display:block;margin:0 auto;background:#000}
.ui-video-fig figcaption{font-size:13px;color:var(--ink-faint);margin-top:.7em}
.ui-video-badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent-ink);background:var(--spectrum-soft);border:1px solid var(--line-strong);border-radius:20px;padding:3px 10px;margin-bottom:10px}
.ui-video-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--pink);box-shadow:0 0 0 3px color-mix(in srgb,var(--pink) 25%,transparent)}

hr{border:0;height:1px;background:var(--line);margin:2em 0}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .prose{grid-template-columns:minmax(0,1fr);max-width:820px}
  .toc-col{display:none}
}
@media (max-width:860px){
  .menu-toggle{display:flex}
  .search{max-width:none;order:5;flex-basis:100%}
  .sidebar{
    position:fixed;left:0;top:var(--topbar-h);z-index:70;background:var(--bg-2);
    transform:translateX(-105%);transition:transform .22s;box-shadow:var(--shadow-lg);
  }
  body.nav-open .sidebar{transform:none}
  .nav-scrim{position:fixed;inset:0;top:var(--topbar-h);background:rgba(10,8,20,.45);z-index:65;opacity:0;pointer-events:none;transition:opacity .2s}
  body.nav-open .nav-scrim{opacity:1;pointer-events:auto}
  .topbar-actions .ghost-btn{display:none}
  .hero-title{font-size:2.4rem}
  .theme-trio{grid-template-columns:1fr}
  .prose{padding:24px 18px 0}
  .hero{padding:36px 18px 20px}
}
.nav-scrim{display:none}
@media (max-width:860px){.nav-scrim{display:block}}