:root{
  --bg:#eef1f4;--panel:#f9fafb;--ink:#16202a;--muted:#5b6b7a;--line:#d3d9df;--field:#ffffff;
  --accent:#2346d6;--accent-ink:#ffffff;--accent-soft:#e3e8fb;
  --warn:#9a4a05;--warn-bg:#fdf0dd;--err:#b3261e;--err-bg:#fbe7e5;--info:#2f5d8a;--info-bg:#e5eef7;
  --term:#16202a;--term-ink:#e6edf3;--term-line:#2c3743;--t-cmd:#8fb3ff;--t-flag:#f2c26b;--t-val:#9fe0b4;--t-op:#c9a7f5;--t-dim:#7d8b99;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --top:58px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#131920;--panel:#1a222b;--ink:#e3e8ee;--muted:#93a1ae;--line:#2c3743;--field:#10161c;
    --accent:#7d9bff;--accent-ink:#0d1530;--accent-soft:#1f2a4a;
    --warn:#f0b35a;--warn-bg:#2b2112;--err:#ff8a80;--err-bg:#2e1715;--info:#8ab8e6;--info-bg:#15222f;
    --term:#0c1116;color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#131920;--panel:#1a222b;--ink:#e3e8ee;--muted:#93a1ae;--line:#2c3743;--field:#10161c;
  --accent:#7d9bff;--accent-ink:#0d1530;--accent-soft:#1f2a4a;
  --warn:#f0b35a;--warn-bg:#2b2112;--err:#ff8a80;--err-bg:#2e1715;--info:#8ab8e6;--info-bg:#15222f;
  --term:#0c1116;color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-padding-top:calc(var(--top) + 12px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.45;
  padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
code,kbd{font-family:var(--mono);font-size:12.5px}
kbd{border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 5px;background:var(--panel);color:var(--muted)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- top bar ---------- */
.top{position:sticky;top:0;z-index:4;padding:10px 0;
  padding-top:calc(env(safe-area-inset-top,0px) + 10px);background:var(--bg);border-bottom:1px solid var(--line)}
/* same width as the page below, so header edges line up with the nav and content */
.topin{max-width:1180px;margin:0 auto;padding:0 22px 0 18px;display:flex;align-items:center;gap:14px}
.brand{font-family:var(--mono);font-weight:600;font-size:20px;letter-spacing:-.01em;display:flex;align-items:center;gap:9px}
.brand img{display:block;border-radius:6px}
.search{flex:1;max-width:440px;display:flex;align-items:center;gap:9px;border:1px solid var(--line);background:var(--field);
  border-radius:9px;padding:8px 10px;color:var(--muted);cursor:pointer;text-align:left;min-height:38px}
.search span{flex:1}
.topright{margin-left:auto;display:flex;align-items:center;gap:10px}
.prof select{min-height:36px;padding:6px 8px;width:auto;max-width:160px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:9px;padding:3px;background:var(--panel);gap:2px;position:relative;isolation:isolate}
.seg .thumb{position:absolute;top:3px;bottom:3px;left:3px;border-radius:6px;background:var(--ink);z-index:-1;transition:transform .3s cubic-bezier(.3,1.3,.5,1),width .3s cubic-bezier(.2,.8,.2,1)}
.seg.has-thumb button.on{background:transparent}
.seg button{transition:color .25s}
.seg button{border:0;background:transparent;padding:6px 12px;border-radius:6px;font-size:14px;color:var(--muted);cursor:pointer;white-space:nowrap}
.seg button.on{background:var(--ink);color:var(--bg);font-weight:500}
.seg.sm button{padding:4px 10px;font-size:13px}
.iconbtn{border:1px solid var(--line);background:var(--panel);border-radius:9px;width:38px;height:38px;display:inline-grid;place-items:center;cursor:pointer;color:var(--muted)}
@media (max-width:820px){
  .topin{flex-wrap:wrap;gap:10px;padding:0 14px}
  .lg{display:none}
  /* one row on phones: profile switching lives in Settings there */
  .prof{display:none}
  .topright{gap:6px}
  .iconbtn{width:36px;height:36px}
  .explain.idle{display:none}
  .search{order:5;flex-basis:100%;max-width:none}
  .search kbd{display:none}
  .seg button{padding:6px 9px}
}

/* ---------- layout ---------- */
.shell{display:grid;grid-template-columns:230px minmax(0,1fr);max-width:1180px;margin:0 auto}
.nav{position:sticky;top:var(--top);isolation:isolate;align-self:start;max-height:calc(100vh - var(--top) - var(--foot));overflow:auto;padding:18px 10px 40px 18px}
.nav{scrollbar-width:none;-ms-overflow-style:none}
.nav::-webkit-scrollbar{display:none}
.ng{margin-top:10px}
.ng:first-of-type{margin-top:0}
.nav .ngh{flex-direction:row;align-items:center;gap:6px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:6px 10px;border-radius:6px}
.nav .ngh:hover{background:none;color:var(--ink)}
.nav .ngh .caret{display:inline-block;width:10px;font-size:13px;line-height:1;transform:rotate(90deg);transition:transform .22s cubic-bezier(.2,.8,.2,1)}
.nav .ngh em{font-style:normal;font-weight:500;margin-left:auto;opacity:0;transition:opacity .2s;font-family:var(--mono);letter-spacing:0}
.ng.closed .ngh .caret{transform:rotate(0)}
.ng.closed .ngh em{opacity:1}
.ngb{display:grid;grid-template-rows:1fr;transition:grid-template-rows .28s cubic-bezier(.2,.8,.2,1),opacity .2s}
.ng.closed .ngb{grid-template-rows:0fr;opacity:0}
.ngi{overflow:hidden;min-height:0}
.nav-ind{position:absolute;top:0;left:0;z-index:0;border-radius:7px;background:var(--accent-soft);opacity:0;pointer-events:none;
  transition:transform .32s cubic-bezier(.2,.8,.2,1),height .32s cubic-bezier(.2,.8,.2,1),opacity .2s}
.nav button[data-cat],.nav .savedbtn{position:relative;z-index:1;transition:color .2s,background-color .2s}
.nav.has-ind button.on{background:transparent}
.nav button{display:flex;flex-direction:column;align-items:flex-start;gap:0;width:100%;border:0;background:none;text-align:left;padding:7px 10px;border-radius:7px;cursor:pointer;font-size:14px}
.nav button small{font-family:var(--mono);font-size:11px;color:var(--muted);font-weight:400}
.nav button:hover{background:var(--panel)}
.nav button.on{background:var(--accent-soft);color:var(--accent);font-weight:500}
.nav .savedbtn{margin-top:14px;border-top:1px solid var(--line);border-radius:0;padding-top:12px}
.main{padding:22px 22px 0;min-width:0}
@media (max-width:820px){
  .shell{grid-template-columns:1fr}
  .nav{position:static;max-height:none;display:flex;gap:6px;overflow-x:auto;padding:10px 14px;border-bottom:1px solid var(--line)}
  .nav .ngh,.nav-ind{display:none}
  .ng,.ngb,.ngi{display:contents}
  .nav button{width:auto;flex:0 0 auto;white-space:nowrap;flex-direction:row;border:1px solid var(--line);background:var(--panel)}
  .nav button small{display:none}
  .nav .savedbtn{margin:0;border-top:1px solid var(--line);border-radius:7px;padding-top:7px}
  .main{padding:18px 14px 0}
}

/* ---------- category view ---------- */
.vhead h1{font-size:22px;margin:0 0 4px;letter-spacing:-.01em}
.vhead p{color:var(--muted);margin:0 0 20px;max-width:62ch}
.row{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}
.lbl{font-size:14px;font-weight:600;margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.chip{border:1px solid var(--line);background:var(--panel);border-radius:99px;padding:7px 13px;font-size:13.5px;cursor:pointer;text-align:left}
.chip:hover{border-color:var(--muted)}
.chip.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:500}
.chip .dz{color:var(--err);margin-left:4px}
.tasktitle{font-size:16px;font-weight:600;margin:0 0 14px}

.basic{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.basic .wide,.fields .wide{grid-column:1/-1}
.f label.t{display:block;font-size:13px;font-weight:500;margin-bottom:6px}
.hint{font-size:12px;color:var(--muted);margin-top:4px}
input[type=text],input[type=number],select{width:100%;font:inherit;font-size:14px;padding:9px 11px;border:1px solid var(--line);border-radius:7px;background:var(--field);color:var(--ink);min-height:42px}
.basic input[type=text]{font-size:15px;min-height:46px}
input.mono{font-family:var(--mono)}
.chk{display:flex;gap:10px;align-items:flex-start;cursor:pointer;font-size:14px;padding-top:4px}
.basic .chk{padding-top:30px}
.basic.days{grid-template-columns:repeat(auto-fill,minmax(70px,1fr))}
.chk input{width:18px;height:18px;margin:1px 0 0;accent-color:var(--accent);flex:0 0 auto}
.badge{display:inline-block;font-size:11px;font-weight:500;padding:1px 7px;border-radius:99px;background:var(--warn-bg);color:var(--warn);margin-left:6px;vertical-align:1px}
.nofields{color:var(--muted);font-size:14px;margin:0}

.advbtn{margin:22px 0 0;border:0;background:none;padding:6px 0;cursor:pointer;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--accent)}
.advbtn .caret{display:inline-block;transition:transform .15s}
.advbtn[aria-expanded="true"] .caret{transform:rotate(90deg)}
.advbtn .count{font-weight:400;color:var(--muted)}
.adv{display:grid;grid-template-rows:0fr;opacity:0;transition:grid-template-rows .3s cubic-bezier(.2,.8,.2,1),opacity .25s,margin .3s;margin-top:0}
.adv.open{grid-template-rows:1fr;opacity:1;margin-top:8px}
.advi{overflow:hidden;min-height:0;border-top:1px solid var(--line)}
.adv h3{font-size:13px;font-weight:600;color:var(--muted);margin:18px 0 10px}
.fields{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}

.notes{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:8px}
.notes:empty{display:none}
.notes li{font-size:13px;padding:9px 11px;border-radius:3px;border-left:3px solid}
.notes .info{background:var(--info-bg);border-color:var(--info)}
.notes .warn{background:var(--warn-bg);border-color:var(--warn)}
.notes .err,.notes .danger{background:var(--err-bg);border-color:var(--err)}
.notes .need{background:var(--panel);border-color:var(--muted);color:var(--muted)}
.preview{margin-top:12px;border:1px solid var(--line);border-radius:9px;padding:10px 12px;background:var(--panel)}
.preview .lbl{font-size:13px;margin-bottom:6px}
.preview .pv{display:flex;gap:10px;align-items:flex-start}
.preview code{flex:1;white-space:pre-wrap;word-break:break-word;font-size:13px}

/* ---------- command dock ---------- */
.dock{position:sticky;bottom:var(--foot);margin:26px -22px 0;padding:12px 22px 12px;background:linear-gradient(to bottom,transparent,var(--bg) 14px);z-index:2}
@media (max-width:820px){.dock{margin:26px -14px 0;padding-left:14px;padding-right:14px}}
.dockin{background:var(--term);border-radius:12px;padding:14px 14px 12px}
.term{color:var(--term-ink);font-family:var(--mono);font-size:15px;line-height:1.6;white-space:pre-wrap;word-break:break-word;max-height:28vh;overflow:auto}
.term .ps{color:var(--t-dim);user-select:none}
.tk-cmd{color:var(--t-cmd);font-weight:600}.tk-flag{color:var(--t-flag)}.tk-val{color:var(--t-val)}.tk-op{color:var(--t-op)}
.term [data-x]{cursor:help;border-radius:3px;text-decoration:underline dotted rgba(230,237,243,.35);text-underline-offset:4px}
.term [data-x]:hover,.term [data-x].hot{background:rgba(143,179,255,.16)}
.explain{color:#b9c4cf;font-size:13px;min-height:20px;margin-top:8px}
.explain b{color:#e6edf3;font-family:var(--mono);font-weight:500}
.dockbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:10px;border-top:1px solid var(--term-line);padding-top:11px}
.dockbar .chk{color:#b9c4cf;font-size:13px;padding:0;margin-right:auto}
.dockbar .chk.off{opacity:.45;cursor:not-allowed}
.btn{border:1px solid #3a4652;background:transparent;color:#e6edf3;padding:8px 14px;border-radius:7px;cursor:pointer;font-size:14px;min-height:38px}
.btn.primary{background:#e6edf3;border-color:#e6edf3;color:#16202a;font-weight:500}
.btn.primary.armed{background:#ff8a80;border-color:#ff8a80}
.lbtn{border:1px solid var(--line);background:var(--field);color:var(--ink);padding:6px 12px;border-radius:7px;cursor:pointer;font-size:13px;min-height:34px}
.lbtn.pri{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:500}
.lnk{border:0;background:none;color:var(--accent);cursor:pointer;font-size:13px;padding:4px}
.lnk.mute{color:var(--muted)}

/* ---------- saved / runbook ---------- */
.saved .tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.saved .tools .sp{margin-right:auto;font-size:13px;color:var(--muted)}
.saved ul{list-style:none;margin:0 0 60px;padding:0;display:grid;gap:8px}
.saved li{border:1px solid var(--line);background:var(--panel);border-radius:9px;padding:10px 12px;display:grid;grid-template-columns:auto 1fr auto;gap:6px 10px;align-items:start}
.saved li input[type=checkbox]{width:18px;height:18px;margin-top:9px;accent-color:var(--accent)}
.saved li .ttl{border:1px solid transparent;background:transparent;padding:6px 6px;min-height:0;font-weight:500;font-size:14px;font-family:var(--sans)}
.saved li .ttl:hover,.saved li .ttl:focus{border-color:var(--line);background:var(--field)}
.saved li code{grid-column:2/4;display:block;overflow-x:auto;white-space:pre;font-size:13px;padding:0 6px 4px}
.saved li .meta{grid-column:2/4;display:flex;flex-wrap:wrap;gap:4px 10px;align-items:center;font-size:12px;color:var(--muted);padding:0 6px}
.saved li .acts{display:flex;gap:2px;align-items:center}
.empty{font-size:14px;color:var(--muted);margin:0;max-width:56ch}
.ostag{font-size:11px;padding:1px 7px;border-radius:99px;background:var(--accent-soft);color:var(--accent);font-weight:500}

/* ---------- dialogs ---------- */
dialog{border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:14px;padding:0;box-shadow:0 20px 60px rgba(0,0,0,.25)}
dialog::backdrop{background:rgba(10,15,20,.45)}
.pal{width:min(620px,calc(100vw - 24px));margin-top:12vh}
.pal input{border:0;border-bottom:1px solid var(--line);border-radius:14px 14px 0 0;font-size:16px;padding:16px 18px;min-height:56px;background:var(--bg)}
.pal input:focus-visible{outline:none}
.pal ul{list-style:none;margin:0;padding:6px;max-height:min(420px,55vh);overflow:auto}
.pal li{display:flex;justify-content:space-between;gap:12px;align-items:baseline;padding:9px 12px;border-radius:8px;cursor:pointer}
.pal li small{color:var(--muted);font-size:12px;white-space:nowrap}
.pal li.on{background:var(--accent-soft)}
.pal li.on span{color:var(--accent)}
.pal li code{font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pal .none{color:var(--muted);cursor:default}
.palfoot{display:flex;gap:16px;padding:9px 16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
@media (max-width:820px){.palfoot{display:none}.pal{margin-top:8vh}}

.sheet{width:min(720px,calc(100vw - 24px));max-height:calc(100vh - 40px)}
.sheethead{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:1}
#setBody{padding:16px 18px 20px}
#setBody h3{font-size:15px;margin:0 0 6px}
#setBody p{color:var(--muted);font-size:14px;margin:0 0 14px}
.profrow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}
.profrow select,.profrow input{width:auto;flex:1;min-width:160px}
.vars{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin:14px 0}
.vars label{display:block;font-family:var(--mono);font-size:12px;font-weight:500;margin-bottom:4px}
.bk{display:grid;gap:18px}
.bk section{border:1px solid var(--line);border-radius:10px;padding:14px}
.bk .acts{display:flex;flex-wrap:wrap;gap:8px}

.toast{position:fixed;left:50%;top:calc(env(safe-area-inset-top,0px) + 16px);transform:translate(-50%,-14px) scale(.96);background:var(--ink);color:var(--bg);padding:8px 16px;border-radius:8px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s,transform .3s cubic-bezier(.3,1.4,.5,1);z-index:20}
.toast.show{opacity:1;transform:translate(-50%,0) scale(1)}
@media (prefers-reduced-motion:reduce){.toast,.advbtn .caret{transition:none}}

/* ---------- product tour ---------- */
.tour-shade{position:fixed;inset:0;z-index:30;background:rgba(10,15,20,.55)}
.tour-shade.hole{background:transparent}
.tour-spot{position:fixed;z-index:31;border-radius:10px;box-shadow:0 0 0 9999px rgba(10,15,20,.55),0 0 0 2px var(--accent);pointer-events:none;transition:all .2s ease}
.tour-pop{position:fixed;z-index:32;width:min(340px,calc(100vw - 24px));background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:16px 16px 12px;box-shadow:0 18px 50px rgba(0,0,0,.3)}
.tour-pop:focus-visible{outline:none}
.tour-pop .step{font-size:12px;color:var(--muted);margin:0 0 6px}
.tour-pop h2{font-size:16px;margin:0 0 6px}
.tour-pop p{font-size:14px;margin:0;color:var(--muted)}
.tour-pop p b,.tour-pop p kbd{color:var(--ink)}
.tour-pop .bar{display:flex;align-items:center;gap:8px;margin-top:14px}
.tour-pop .bar .skip{margin-right:auto}
.tour-dots{display:flex;gap:4px;margin-top:12px}
.tour-dots i{width:6px;height:6px;border-radius:50%;background:var(--line)}
.tour-dots i.on{background:var(--accent)}
@media (prefers-reduced-motion:reduce){.tour-spot{transition:none}}

/* ---------- motion ----------
   Quick, springy, and only where it explains a change. Everything is
   switched off for people who ask for reduced motion.                  */
:root{--ease-out:cubic-bezier(.2,.8,.2,1);--spring:cubic-bezier(.3,1.4,.5,1)}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes pop{from{opacity:0;transform:translateY(6px) scale(.96)}to{opacity:1;transform:none}}
@keyframes glow{0%{background:rgba(143,179,255,.38);box-shadow:0 0 0 2px rgba(143,179,255,.38)}100%{background:transparent;box-shadow:0 0 0 2px transparent}}
@keyframes swap{from{opacity:.25;transform:translateY(4px)}to{opacity:1;transform:none}}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}
@keyframes flash{0%{box-shadow:0 0 0 0 rgba(95,209,140,.55)}100%{box-shadow:0 0 0 14px rgba(95,209,140,0)}}
@keyframes bump{0%{transform:scale(1)}40%{transform:scale(1.6)}100%{transform:scale(1)}}
@keyframes noteIn{from{opacity:0;transform:translateX(-8px)}to{opacity:1;transform:none}}
@keyframes dlg{from{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:none}}
@keyframes fadein{from{opacity:0}to{opacity:1}}

#view.enter .vhead{animation:rise .38s var(--ease-out) both}
#view.enter .row{animation:rise .38s var(--ease-out) .04s both}
#view.enter .chip{animation:pop .34s var(--ease-out) both;animation-delay:calc(60ms + var(--i,0) * 22ms)}
#view.enter .tasktitle,#view.enter .basic,#view.enter .advbtn,#view.enter .nofields{animation:rise .4s var(--ease-out) .12s both}
#view.enter .saved li{animation:rise .36s var(--ease-out) both}
#view.enter .saved li:nth-child(2){animation-delay:.04s}#view.enter .saved li:nth-child(3){animation-delay:.08s}#view.enter .saved li:nth-child(n+4){animation-delay:.12s}

.chip{transition:border-color .15s,background-color .15s,color .15s}
.chip.on{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}
.btn,.lbtn,.iconbtn,.search{transition:transform .15s var(--ease-out),background-color .2s,border-color .2s,color .2s,box-shadow .2s}
.btn:active,.lbtn:active,.iconbtn:active{transform:scale(.95)}
.btn:hover{border-color:#5a6875}
.btn.primary:hover{box-shadow:0 0 0 3px rgba(230,237,243,.15)}
.search:hover{border-color:var(--muted)}
input[type=text],input[type=number],select{transition:border-color .2s,box-shadow .2s}
input[type=text]:focus,input[type=number]:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 20%,transparent);outline:none}
.chk input{transition:transform .15s var(--spring)}
.chk input:checked{transform:scale(1.08)}

.term .fresh{animation:glow .9s var(--ease-out)}
.term.swap{animation:swap .3s var(--ease-out)}
.term .caret{display:inline-block;width:.55em;height:1.1em;margin-left:2px;vertical-align:-.18em;background:var(--t-cmd);opacity:.8;animation:blink 1.1s steps(1) infinite}
.dockin{transition:box-shadow .3s}
.dockin.flash{animation:flash .7s var(--ease-out)}
.btn.done{background:#5fd18c;border-color:#5fd18c;color:#0c2416;animation:pop .3s var(--spring)}
#savedCount.bump{display:inline-block;animation:bump .45s var(--spring);color:var(--accent);font-weight:600}
.notes li.in{animation:noteIn .3s var(--ease-out) both}
#view.enter .preview{animation:rise .3s var(--ease-out)}
.advbtn .caret{transition:transform .25s var(--spring)}

dialog[open]{animation:dlg .22s var(--ease-out)}
dialog[open]::backdrop{animation:fadein .2s ease}
.pal li{transition:background-color .12s}
.tour-pop{animation:dlg .25s var(--ease-out)}

/* theme button: sun and moon trade places */
.themebtn{position:relative;overflow:hidden}
.themebtn svg{position:absolute;inset:0;margin:auto;transition:transform .45s var(--spring),opacity .3s}
.themebtn .moon{transform:translateY(130%) rotate(-60deg);opacity:0}
.themebtn.is-dark .sun{transform:translateY(-130%) rotate(90deg);opacity:0}
.themebtn.is-dark .moon{transform:none;opacity:1}
/* theme switch: a circle grows from the button (View Transitions), else a quick fade */
::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}
::view-transition-new(root){animation:reveal .55s cubic-bezier(.4,0,.2,1)}
@keyframes reveal{from{clip-path:circle(0 at var(--vt-x,50%) var(--vt-y,0))}to{clip-path:circle(var(--vt-r,150vmax) at var(--vt-x,50%) var(--vt-y,0))}}
.theme-fade,.theme-fade *{transition:background-color .3s,color .3s,border-color .3s !important}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .term .caret{animation:none}
}

/* ---------- credit ---------- */
/* a tiny bar pinned to the bottom of the screen; the command bar sits on top of it */
:root{--foot:calc(30px + env(safe-area-inset-bottom,0px))}
body{padding-bottom:var(--foot)}
.credit{position:fixed;left:0;right:0;bottom:0;z-index:3;height:var(--foot);padding:0 16px env(safe-area-inset-bottom,0px);
  display:flex;align-items:center;justify-content:center;gap:6px;
  font-size:12px;color:var(--muted);background:var(--bg);border-top:1px solid var(--line);white-space:nowrap;overflow:hidden}
.credit b{color:var(--ink);font-weight:500}
.credit .tag{overflow:hidden;text-overflow:ellipsis}
.credit .by::before{content:"·";margin-right:6px;opacity:.6}
@media (max-width:420px){.credit{font-size:11px;gap:4px;padding-left:10px;padding-right:10px}.credit .by::before{margin-right:4px}}
@media (max-width:380px){.brand span{display:none}}