/* Libronox — design system (tokens + reusable components).
 * Extracted from libronox-graph-mockup.html per the design-system doc §8. Every page imports
 * this; graph-only rules live in graph.css. NO colour literals in components — only var(--…).
 * Fonts (load in <head>): Newsreader (serif titles) + Inter (UI). */

/* ───────────────────────── tokens / themes ───────────────────────── */
:root{
  --serif:"Newsreader",Georgia,serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --r:13px; --sidew:60px; --trayw:300px;
}
/* Night = Observatory + Indigo (the night face — a toggle, not the default) */
[data-theme="observatory"]{
  --bg:#0a0b12; --bg2:#0e1019; --panel:#161a29; --panel2:#1c2133; --line:#272c40;
  --ink:#e9ebf4; --mut:#9398ad; --mut2:#646a82; --accent:#7c83ff; --accent2:#a78bfa;
  --edge:#2c3150; --glow:#7c83ff66; --badgeink:#0a0b12; --shadow:0 18px 50px #0008; --shadow-sm:0 8px 22px #0006;
  --ok:#56d6a0; --warn:#e0a35b; --bad:#f0728f; --grad:linear-gradient(180deg,#161a29,#0f111b);
}
/* Day = Ink + Amber (the public face — landing and app default to it) */
[data-theme="ink"]{
  --bg:#ece5d6; --bg2:#e4dcc9; --panel:#f7f2e8; --panel2:#efe8d8; --line:#d6cab1;
  --ink:#211c14; --mut:#6c6253; --mut2:#9b917c; --accent:#e0a35b; --accent2:#f0c483;
  --edge:#cabfa4; --glow:#e0a35b44; --badgeink:#3a2c12; --shadow:0 16px 40px #6b5c3a22; --shadow-sm:0 6px 16px #6b5c3a16;
  --ok:#2f8f6a; --warn:#c98a36; --bad:#c2536e; --grad:linear-gradient(180deg,#f7f2e8,#efe7d6);
}
[data-theme="slate"]{
  --bg:#0f1419; --bg2:#131a21; --panel:#172029; --panel2:#1d2832; --line:#293742;
  --ink:#e7eef4; --mut:#8a97a4; --mut2:#5c6a77; --accent:#3fb6c6; --accent2:#63d2df;
  --edge:#2b3a45; --glow:#3fb6c655; --badgeink:#08191c; --shadow:0 18px 50px #0009; --shadow-sm:0 8px 22px #0007;
  --ok:#46c7a0; --warn:#e0a35b; --bad:#f0728f; --grad:linear-gradient(180deg,#172029,#10161c);
}
[data-theme="forest"]{
  --bg:#0a110e; --bg2:#0d1712; --panel:#122019; --panel2:#172a20; --line:#243a2e;
  --ink:#e8efe9; --mut:#8aa599; --mut2:#5d7468; --accent:#e0a35b; --accent2:#f0c483;
  --edge:#25392e; --glow:#e0a35b44; --badgeink:#14110a; --shadow:0 18px 50px #0009; --shadow-sm:0 8px 22px #0007;
  --ok:#5fc98f; --warn:#e0a35b; --bad:#f0728f; --grad:linear-gradient(180deg,#122019,#0d1611);
}
[data-theme="mono"]{
  --bg:#0c0c0d; --bg2:#101011; --panel:#161617; --panel2:#1d1d1f; --line:#2b2b2e;
  --ink:#ededee; --mut:#8f8f95; --mut2:#5c5c61; --accent:#d9d4ca; --accent2:#f0ebe0;
  --edge:#2c2c30; --glow:#d9d4ca22; --badgeink:#0c0c0d; --shadow:0 18px 50px #000b; --shadow-sm:0 8px 22px #0008;
  --ok:#8fae9d; --warn:#c9b079; --bad:#c99a9a; --grad:linear-gradient(180deg,#161617,#101011);
}

/* ───────────────────────── base ───────────────────────── */
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.55 var(--sans);-webkit-font-smoothing:antialiased;
  transition:background .3s,color .3s}
button{font:inherit;cursor:pointer;border:0;color:var(--ink);background:transparent}
a{color:var(--accent2);text-decoration:none}
input,textarea,select{font:inherit}
.app{display:flex;height:100vh;overflow:hidden}
.mut{color:var(--mut)} .mut2{color:var(--mut2)}
.mono{font-family:var(--mono)} .serif{font-family:var(--serif)}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* ───────────────────────── rail (the side menu — collapsible, labelled) ───────────────────────── */
.rail{width:var(--sidew);flex:none;background:var(--bg2);border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:4px;padding:14px 9px;transition:width .18s;overflow:hidden}
.rail.expanded{width:214px}
.railtop{display:flex;align-items:center;gap:10px;min-height:32px;margin-bottom:12px}
.rail:not(.expanded) .railtop{justify-content:center}
/* the orb mark — sun by day / moon by night (a quiet pun on "nox") */
.orb,.rail .logo{position:relative;overflow:hidden;border-radius:50%;flex:none;
  background:radial-gradient(circle at 35% 30%,var(--accent2),var(--accent));box-shadow:0 0 18px var(--glow)}
.rail .logo{width:26px;height:26px;cursor:pointer}
.orb::after,.rail .logo::after{content:"";position:absolute;inset:0;border-radius:50%}
/* night: pale moon disc with a soft indigo crescent hugging one edge */
[data-theme="observatory"] .orb,[data-theme="observatory"] .rail .logo,
[data-theme="observatory"] #player .pcover{background:radial-gradient(circle at 36% 30%,#fff,#cfd4ea)}
[data-theme="observatory"] .rail .logo::after{box-shadow:inset -6px 1.6px 2.6px 0 var(--accent)}
[data-theme="observatory"] .orb::after{box-shadow:inset -.34em .09em .07em 0 var(--accent)}

/* day/night toggle in the top bar (the signature one-brand-two-faces moment) */
.ttog{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:var(--panel);
  display:grid;place-items:center;cursor:pointer;flex:none}
.ttog:hover{border-color:var(--accent)}
.ttog .orb{width:15px;height:15px;box-shadow:none}
.railbrand{font-family:var(--serif);font-size:17px;font-weight:500;white-space:nowrap;letter-spacing:.2px}
.rail:not(.expanded) .logo,.rail:not(.expanded) .railbrand{display:none}
.railtoggle{width:32px;height:32px;border-radius:9px;color:var(--mut);display:grid;place-items:center;font-size:16px;flex:none}
.railtoggle:hover{color:var(--ink);background:var(--panel2)}
.rail.expanded .railtoggle{margin-left:auto}
.rail>button{display:flex;align-items:center;gap:12px;width:100%;height:42px;border-radius:10px;color:var(--mut);padding:0 8px}
.rail:not(.expanded)>button{justify-content:center;padding:0}
.rail button[data-route].on{background:var(--panel2);color:var(--ink)}
.rail>button:hover{color:var(--ink)}
.rail .ri{width:26px;text-align:center;font-size:17px;flex:none;display:inline-flex;align-items:center;justify-content:center}
.rail .ri svg{width:19px;height:19px;fill:currentColor;display:block}
.rail .rl{font-size:14px;white-space:nowrap}
.rail:not(.expanded) .rl{display:none}
.railsp{margin-top:auto}

/* ───────────────────────── main / top bar ───────────────────────── */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:14px;padding:12px 18px;border-bottom:1px solid var(--line);background:var(--bg2)}
.title{font-family:var(--serif);font-size:20px;font-weight:500;letter-spacing:.2px;white-space:nowrap}
.title small{font-family:var(--sans);font-size:12px;color:var(--mut);margin-left:9px;letter-spacing:0}
.search{flex:1;max-width:440px;position:relative}
.search input{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:999px;color:var(--ink);
  padding:10px 14px 10px 38px;outline:none;font-size:14px}
.search input:focus{border-color:var(--accent)}
.search .mag{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--mut2);font-size:14px}

/* segmented toggles */
.seg{display:flex;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.seg button{padding:8px 13px;color:var(--mut);font-size:13px}
.seg button.on{background:var(--panel2);color:var(--ink)}
.atlasgen{display:inline-flex;align-items:center;gap:6px;height:35px;padding:0 15px;border-radius:10px;font-size:13px;font-weight:600;
  color:var(--ink);background:color-mix(in srgb,var(--accent) 26%,var(--panel));
  border:1px solid color-mix(in srgb,var(--accent) 45%,var(--line))}
.atlasgen:hover{background:color-mix(in srgb,var(--accent) 38%,var(--panel));border-color:color-mix(in srgb,var(--accent) 60%,var(--line))}
.seg2{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:10px 0 0}
.seg2 button{background:transparent;color:var(--mut);border:0;padding:5px 11px;font-size:12px;cursor:pointer}
.seg2 button.on{background:var(--accent);color:var(--badgeink)}

/* theme / accent swatches (Settings reuses these directly) */
.themes{display:flex;gap:6px;align-items:center}
.sw{width:22px;height:22px;border-radius:50%;border:2px solid var(--line);cursor:pointer;padding:0}
.sw.on{border-color:var(--ink)}
/* swatch previews show each theme's page colour */
.sw[data-t="ink"]{background:#ece5d6}
.sw[data-t="observatory"]{background:#0a0b12}
.sw[data-t="slate"]{background:#0f1419}
.sw[data-t="forest"]{background:#0a110e}
.sw[data-t="mono"]{background:#0c0c0d}
.ac{width:18px;height:18px;border-radius:50%;border:2px solid var(--line);cursor:pointer;padding:0;color:var(--mut2);
  font-size:11px;line-height:1;display:grid;place-items:center}
.ac.on{border-color:var(--ink)}
.lbl{color:var(--mut2);font-size:11px}

/* ───────────────────────── buttons / inputs ───────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);
  background:var(--panel2);color:var(--ink);border-radius:9px;padding:8px 13px;font-size:13px;font-weight:600;cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--accent)}
.btn.pri{background:var(--accent);border-color:transparent;color:var(--badgeink);box-shadow:var(--shadow-sm)}
.btn.pri:hover{filter:brightness(1.04);border-color:transparent}
.btn.sm{padding:6px 11px;font-size:12.5px}
.btn:disabled{opacity:.4;cursor:default}
.gen{margin-top:14px;width:100%;background:var(--accent);color:var(--badgeink);border:0;border-radius:10px;
  padding:11px;font-size:13.5px;font-weight:700;cursor:pointer;box-shadow:var(--shadow-sm)}
.gen:hover{filter:brightness(1.04)}
.gen:disabled{opacity:.4;cursor:default}
.fin{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:9px;color:var(--ink);
  padding:9px 11px;font-size:13px;font-family:var(--sans)}
.fin:focus{outline:none;border-color:var(--accent2)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:7px;margin:4px 0 14px}
.chip{border:1px solid var(--line);background:var(--panel2);color:var(--ink);border-radius:999px;padding:6px 11px;font-size:12.5px;cursor:pointer}
.chip:hover{border-color:var(--accent2)}
.chip.on{background:var(--accent);border-color:transparent;color:var(--badgeink)}

/* ───────────────────────── detail panel ───────────────────────── */
.detail{position:absolute;top:14px;right:14px;width:300px;max-height:calc(100% - 28px);overflow:auto;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow);z-index:30;display:none}
.detail.on{display:block}
.detail .dx{position:absolute;top:9px;right:12px;color:var(--mut2);cursor:pointer;font-size:14px;line-height:1}
.detail h3{margin:0 22px 3px 0;font-size:16.5px;font-weight:600}
.detail h3.r{font-family:var(--serif);font-weight:500;font-size:19px}
.dbrief{color:var(--mut);font-size:13px;margin:0 0 10px;line-height:1.5}
.dcount{display:flex;gap:13px;color:var(--mut2);font-family:var(--mono);font-size:11px;margin:0 0 10px;padding-bottom:11px;border-bottom:1px solid var(--line)}
.dlong{color:var(--ink);font-size:12.5px;line-height:1.6;margin:0 0 14px;opacity:.88}
.dplaybig{display:block;width:100%;margin:12px 0 8px;border:1px solid transparent;background:var(--accent);
  color:var(--badgeink);box-shadow:var(--shadow-sm);border-radius:9px;padding:9px;font-size:13px;font-weight:600;cursor:pointer}
.dplaybig:hover{filter:brightness(1.06)}
.optvoice{display:flex;flex-wrap:wrap;gap:6px}
.optvoice button{border:1px solid var(--line);background:var(--panel2);color:var(--mut);border-radius:8px;padding:7px 12px;font-size:12.5px;cursor:pointer}
.optvoice button.on{background:color-mix(in srgb,var(--accent) 18%,var(--panel2));color:var(--ink);border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.dbtns{display:flex;gap:7px}
.dbtns button{flex:1;border:1px solid var(--line);background:var(--panel2);color:var(--ink);border-radius:9px;padding:8px 3px;font-size:12px;font-weight:600;cursor:pointer}
.dbtns button#dSave.on{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 55%,var(--line));background:color-mix(in srgb,var(--accent) 14%,var(--panel2))}
.dbtns button:hover{border-color:var(--accent2)}
.dbtns .pri{background:var(--accent);border-color:transparent;color:var(--badgeink);box-shadow:var(--shadow-sm)}
.prop{font-size:12.5px;line-height:1.55;margin:12px 0 0;padding:10px 12px;border-radius:9px;background:var(--panel2);border:1px solid var(--line);color:var(--ink)}
.prop b{color:var(--accent)}
.nudge{font-size:12px;line-height:1.55;margin:10px 0 0;padding:10px 12px;border-radius:9px;
  background:color-mix(in srgb,var(--warn) 14%,transparent);border:1px solid color-mix(in srgb,var(--warn) 45%,transparent);color:var(--ink);display:none}
.nudge.on{display:block}

/* ───────────────────────── modal ───────────────────────── */
#scrim{position:fixed;inset:0;background:#0009;backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;z-index:50;padding:20px}
#scrim.on{display:flex}
#mcard{background:var(--panel);border:1px solid var(--line);border-radius:16px;max-width:440px;width:100%;max-height:80vh;overflow:auto;padding:22px;box-shadow:var(--shadow)}
.mtitle{font-family:var(--serif);font-weight:500;margin:0 0 2px;font-size:19px}
.rv{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
.rv:last-of-type{border-bottom:0}
.rvp{flex:none;width:30px;height:30px;border-radius:8px;background:var(--accent2);color:var(--badgeink);display:grid;place-items:center;font-size:12px;cursor:pointer}
.mlabel{font-size:11px;color:var(--mut2);font-family:var(--mono);margin-bottom:6px}

/* ───────────────────────── toast ───────────────────────── */
#toast{position:absolute;left:50%;bottom:18px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:var(--bg);
  font-size:12.5px;font-weight:600;padding:9px 15px;border-radius:999px;box-shadow:var(--shadow);opacity:0;transition:.3s;pointer-events:none;z-index:60;max-width:82%;text-align:center}
#toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* ───────────────────────── list-view indent guides (file-tree rails) ───────────────────────── */
.guide{position:relative;width:22px;flex:none;align-self:stretch}
.guide.pipe::before,.guide.tee::before,.guide.ell::before{content:'';position:absolute;left:11px;width:1.5px;background:var(--mut2);opacity:.45}
.guide.pipe::before,.guide.tee::before{top:0;bottom:0}
.guide.ell::before{top:0;height:50%}
.guide.tee::after,.guide.ell::after{content:'';position:absolute;left:11px;top:50%;width:11px;height:1.5px;background:var(--mut2);opacity:.45}

/* ───────────────────────── tooltip (design-system §6) ───────────────────────── */
.tip{position:relative;display:inline-grid;place-items:center;width:15px;height:15px;border-radius:50%;
  border:1px solid var(--line);color:var(--mut2);font-size:10px;font-style:normal;cursor:help;flex:none}
.tip:hover,.tip:focus{border-color:var(--accent2);color:var(--accent2);outline:none}
.tip::after{content:attr(data-tip);position:absolute;bottom:135%;left:50%;transform:translateX(-50%);
  width:max-content;max-width:220px;background:var(--ink);color:var(--bg);font-size:11.5px;line-height:1.45;
  font-weight:500;padding:7px 9px;border-radius:8px;box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transition:opacity .15s;z-index:70}
.tip:hover::after,.tip:focus::after{opacity:1}

/* ───────────────────────── page scaffolding (side-menu pages) ─────────────────────────
   Pages absolutely fill the .content region (inset:0) so they always occupy the full height
   regardless of flexbox height quirks (Firefox/Qutebrowser). Scroll pages overflow:auto;
   the graph canvas overrides to a flex column with hidden overflow. */
.page{position:absolute;inset:0;overflow:auto}
.pagewrap{max-width:980px;margin:0 auto;padding:26px 28px 60px}
.page-canvas{overflow:hidden;display:flex;flex-direction:column}
.phead{margin:0 0 4px;font-family:var(--serif);font-weight:500;font-size:24px}
.psub{color:var(--mut);font-size:14px;margin:0 0 22px}
.sect{margin:28px 0 12px;font-size:12px;color:var(--mut2);font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase;
  display:flex;align-items:center;gap:8px}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(248px,1fr))}
.hscroll{display:flex;gap:14px;overflow-x:auto;padding-bottom:6px}
.hscroll .card{min-width:260px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px;cursor:pointer;transition:border-color .15s,transform .1s,box-shadow .2s}
.card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-2px)}
.card .ct{font-family:var(--serif);font-weight:500;font-size:17px;margin:0 0 5px;line-height:1.25}
.card .cd{color:var(--mut);font-size:13px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .cmeta{display:flex;gap:12px;margin-top:12px;color:var(--mut2);font-size:11px;font-family:var(--mono);flex-wrap:wrap}
.tagcr,.tagai{padding:1px 7px;border-radius:999px;font-size:10px;letter-spacing:.02em}
.tagcr{color:var(--mut);background:var(--panel2)}
.tagai{color:var(--ink);background:color-mix(in srgb,var(--accent) 22%,var(--panel))}
.card.brief{border-color:color-mix(in srgb,var(--accent) 30%,var(--line));display:flex;flex-direction:column}
.card.brief .btn{align-self:flex-start}
.auds{display:flex;gap:8px;flex-wrap:wrap}
.auds .aud{font-size:13px;padding:6px 12px}
.tiers3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tcard{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 18px 20px;display:flex;flex-direction:column}
.tcard.cur{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 30%,transparent)}
.tcard .tname{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut2)}
.tcard .tprice{font-family:var(--serif);font-size:26px;font-weight:500;margin:6px 0 2px}
.tcard .tprice small{font-family:var(--sans);font-size:13px;color:var(--mut2);font-weight:400}
.tcard .tperks{list-style:none;padding:0;margin:13px 0 16px;display:flex;flex-direction:column;gap:7px}
.tcard .tperks li{font-size:13px;color:var(--mut);padding-left:16px;position:relative;line-height:1.35}
.tcard .tperks li::before{content:"–";position:absolute;left:2px;color:var(--accent)}
.tcard .btn{margin-top:auto;text-align:center}
@media(max-width:760px){.tiers3{grid-template-columns:1fr}}
.davail{font-size:12px;color:var(--mut);margin:12px 0 2px;line-height:1.5}
.davail b{color:var(--ink);font-weight:600}
.row{display:flex;align-items:center;gap:10px}
.listrow{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--line);border-radius:11px;margin-bottom:9px;background:var(--panel)}
.listrow .lr-t{flex:1;min-width:0;font-weight:600;font-size:14px}
.listrow .lr-sub{color:var(--mut);font-size:12.5px}
.pill{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--line);border-radius:999px;padding:3px 9px;font-size:11px;font-family:var(--mono);color:var(--mut)}
.pill.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 55%,transparent);background:color-mix(in srgb,var(--ok) 12%,transparent)}
.pill.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 50%,transparent);background:color-mix(in srgb,var(--bad) 10%,transparent)}
.pill.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 50%,transparent);background:color-mix(in srgb,var(--warn) 12%,transparent)}
.empty{color:var(--mut2);font-size:14px;text-align:center;padding:56px 20px;line-height:1.7}
.skel{background:linear-gradient(90deg,var(--panel) 25%,var(--panel2) 37%,var(--panel) 63%);background-size:400% 100%;
  animation:shimmer 1.3s infinite;border-radius:var(--r);height:118px}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:-100% 0}}
.field{margin:16px 0}
.field label{display:block;font-size:12.5px;color:var(--mut);margin-bottom:7px}
.field select,.field input{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--line);border-radius:10px;color:var(--ink);padding:10px 12px;outline:none}
.field select:focus,.field input:focus{border-color:var(--accent)}

@media(max-width:820px){.themes .lbl{display:none}}
/* mobile: force the rail to a slim icon strip so navigation still works (rather than hiding it),
   and let pages breathe with tighter padding. The player compresses via index.html's own query. */
@media(max-width:760px){
  .rail,.rail.expanded{width:54px;padding:12px 7px}
  .rail .railbrand,.rail .logo,.rail .rl,.rail .railtoggle{display:none}
  .rail>button{justify-content:center;padding:0}
  .pagewrap{padding:20px 16px 60px}
  .top{padding:10px 14px;gap:10px}
  .title small{display:none}
  .detail{width:auto;left:10px;right:10px}
}
