/* sandbox hub design system. No framework, no inline styles (the CSP forbids them).
   Tokens first; components below are built only from tokens so light/dark stay in sync. */
:root{
  --bg:#f5f5f9; --surface:#fff; --surface-2:#f0f0f6; --border:#e1e1ea; --border-strong:#cfcfdb;
  --text:#16161c; --muted:#5b5b6b; --faint:#8a8a9a;
  --primary:#5a3df0; --primary-hover:#4a2fd6; --primary-soft:#efecff; --on-primary:#fff;
  --ok:#0e7a4b; --ok-soft:#e5f6ee; --warn:#94560a; --warn-soft:#fdf1de; --bad:#bf2a20; --bad-soft:#fdeceb; --info:#2457c5; --info-soft:#e9effc;
  --shadow:0 1px 2px rgba(20,20,40,.06),0 4px 14px rgba(20,20,40,.05);
  --r:12px; --r-sm:8px; --gap:1rem;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0e0e13; --surface:#16161d; --surface-2:#1e1e27; --border:#2a2a35; --border-strong:#3a3a48;
  --text:#ececf3; --muted:#a2a2b4; --faint:#74748a;
  --primary:#8a74ff; --primary-hover:#a08dff; --primary-soft:#241f45; --on-primary:#0e0e13;
  --ok:#4cc38a; --ok-soft:#10261c; --warn:#e8b05a; --warn-soft:#2a2112; --bad:#ff7b72; --bad-soft:#2d1514; --info:#7da2ff; --info-soft:#14203d;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 18px rgba(0,0,0,.25);
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-underline-offset:2px}a:hover{color:var(--primary-hover)}
h1{font-size:1.6rem;line-height:1.25;margin:0 0 .25rem;letter-spacing:-.01em}
h2{font-size:1.02rem;margin:0 0 .75rem;letter-spacing:-.005em}
h3{font-size:.95rem;margin:0 0 .4rem}
p{margin:.4rem 0}
code,pre,kbd{font-family:var(--mono);font-size:.86em}
code{background:var(--surface-2);border-radius:6px;padding:.1rem .35rem}
pre{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-sm);padding:.7rem .85rem;margin:0;overflow:auto}
:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 55%,transparent);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px;top:.5rem;background:var(--primary);color:var(--on-primary);padding:.5rem .8rem;border-radius:8px;z-index:100}
.skip:focus{left:.5rem}
.wrap{max-width:1040px;margin:0 auto;padding:0 1.1rem}
main.wrap{padding-top:1.6rem;padding-bottom:4rem}
.muted,.sub{color:var(--muted)}.faint{color:var(--faint)}.sub{margin:0 0 1.1rem}
.mono{font-family:var(--mono)}.nowrap{white-space:nowrap}.right{text-align:right}
.hidden{display:none!important}

/* ---- header --------------------------------------------------------------- */
.top{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.top-in{display:flex;align-items:center;gap:1.2rem;height:58px}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:700;color:var(--text);text-decoration:none;letter-spacing:-.01em}
.brand svg{width:24px;height:24px;color:var(--primary)}
.brand .tag{font-size:.7rem;font-weight:600;background:var(--primary-soft);color:var(--primary);padding:.1rem .45rem;border-radius:99px}
.tabs{display:flex;gap:.25rem;margin-right:auto;overflow-x:auto}
.tabs a{color:var(--muted);text-decoration:none;padding:.4rem .75rem;border-radius:8px;font-weight:550;white-space:nowrap}
.tabs a:hover{background:var(--surface-2);color:var(--text)}
.tabs a.on{background:var(--primary-soft);color:var(--primary)}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer;padding:.4rem .7rem;border:1px solid var(--border);border-radius:99px;color:var(--muted);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block}
.menu summary::-webkit-details-marker{display:none}
.menu[open] summary{background:var(--surface-2)}
.menu-pop{position:absolute;right:0;top:calc(100% + 6px);min-width:190px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);box-shadow:var(--shadow);padding:.35rem;display:flex;flex-direction:column}
.menu-pop a,.menu-pop button{background:none;border:0;text-align:left;color:var(--text);padding:.5rem .65rem;border-radius:6px;font:inherit;cursor:pointer;text-decoration:none;width:100%}
.menu-pop a:hover,.menu-pop button:hover{background:var(--surface-2)}
.menu-pop form{margin:0}

/* ---- page head / cards ------------------------------------------------------- */
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}
.back{display:inline-block;margin-bottom:.6rem;color:var(--muted);text-decoration:none}.back:hover{color:var(--text)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:1.1rem 1.25rem;box-shadow:var(--shadow);margin-bottom:var(--gap)}
.card.flat{box-shadow:none}
.card > :last-child{margin-bottom:0}
.card.danger{border-color:color-mix(in srgb,var(--bad) 35%,var(--border))}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:.8rem;margin-bottom:.7rem}.card-head h2{margin:0}
.grid{display:grid;gap:var(--gap)}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.auto{grid-template-columns:repeat(auto-fill,minmax(310px,1fr))}
@media(max-width:820px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.g2,.g3{grid-template-columns:1fr}.g4{grid-template-columns:1fr 1fr;gap:.6rem}.g4>.stat:first-child,.g4>.stat:last-child:nth-child(odd){grid-column:1/-1}.stat{padding:.75rem .85rem}.stat .v{font-size:1.2rem}.top-in{gap:.6rem}.brand span:not(.tag){display:none}.menu summary{max-width:132px;padding:.35rem .6rem}.toasts{top:62px;right:.6rem;left:.6rem;max-width:none}.page-head .btn{width:100%}main.wrap{padding-top:1.1rem}}
.row{display:flex;gap:.7rem;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}.stack>*+*{margin-top:.6rem}

/* ---- buttons ------------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;border:1px solid transparent;border-radius:9px;padding:.55rem 1rem;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;line-height:1.2;transition:background .12s,border-color .12s,transform .05s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:var(--on-primary)}.btn-primary:hover{background:var(--primary-hover);color:var(--on-primary)}
.btn-secondary{background:var(--surface);border-color:var(--border-strong);color:var(--text)}.btn-secondary:hover{background:var(--surface-2);color:var(--text)}
.btn-ghost{background:transparent;color:var(--muted)}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}
.btn-danger{background:var(--bad);color:#fff}.btn-danger:hover{filter:brightness(.92);color:#fff}
.btn-danger-quiet{background:transparent;border-color:color-mix(in srgb,var(--bad) 40%,var(--border));color:var(--bad)}.btn-danger-quiet:hover{background:var(--bad-soft)}
.btn-sm{padding:.34rem .65rem;font-size:.86rem;border-radius:8px}
.btn[disabled],.btn[aria-busy=true]{opacity:.6;cursor:not-allowed}
.linkbtn{background:none;border:0;padding:0;color:var(--primary);font:inherit;cursor:pointer;text-decoration:underline}
form.inline{display:inline;margin:0}

/* ---- pills / chips / badges ---------------------------------------------------------- */
.pill{display:inline-flex;align-items:center;gap:.4rem;padding:.12rem .65rem;border-radius:99px;font-size:.82rem;font-weight:600;border:1px solid var(--border);color:var(--muted);background:var(--surface-2);white-space:nowrap}
.pill .dot{width:8px;height:8px;border-radius:50%;background:var(--faint)}
.pill.s-running{color:var(--ok);background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}.pill.s-running .dot{background:var(--ok);animation:pulse 2s infinite}
.pill.s-starting,.pill.s-stopping{color:var(--warn);background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 30%,transparent)}.pill.s-starting .dot,.pill.s-stopping .dot{background:var(--warn);animation:pulse 1s infinite}
.pill.s-failed{color:var(--bad);background:var(--bad-soft);border-color:color-mix(in srgb,var(--bad) 30%,transparent)}.pill.s-failed .dot{background:var(--bad)}
.badge{display:inline-block;padding:.05rem .5rem;border-radius:6px;font-size:.76rem;font-weight:600;background:var(--surface-2);color:var(--muted);border:1px solid var(--border)}
.badge.ok{color:var(--ok);background:var(--ok-soft);border-color:transparent}.badge.warn{color:var(--warn);background:var(--warn-soft);border-color:transparent}.badge.bad{color:var(--bad);background:var(--bad-soft);border-color:transparent}.badge.accent{color:var(--primary);background:var(--primary-soft);border-color:transparent}
.chip{display:inline-flex;flex-direction:column;align-items:flex-start;gap:0;padding:.4rem .75rem;border:1px solid var(--border-strong);border-radius:10px;background:var(--surface);color:var(--text);font:inherit;cursor:pointer;text-align:left}
.chip small{color:var(--muted);font-size:.76rem}.chip:hover{border-color:var(--primary)}
.chip[aria-pressed=true]{border-color:var(--primary);background:var(--primary-soft);box-shadow:inset 0 0 0 1px var(--primary)}
.chips{display:flex;gap:.5rem;flex-wrap:wrap;margin:.4rem 0 .6rem}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@keyframes spin{to{transform:rotate(360deg)}}
.spin{display:inline-block;width:14px;height:14px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .8s linear infinite;vertical-align:-2px}

/* ---- stats / meters ------------------------------------------------------------------ */
.stat{padding:1rem 1.1rem;margin:0}
.stat .k{color:var(--muted);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.stat .v{font-size:1.5rem;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.stat .s{color:var(--muted);font-size:.85rem}
.meter{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden;margin:.45rem 0 .3rem;border:1px solid var(--border)}
.meter-fill{display:block;height:100%;width:0;background:var(--primary);border-radius:99px;transition:width .5s}
.meter.low .meter-fill{background:var(--warn)}.meter.out .meter-fill{background:var(--bad)}

/* ---- forms --------------------------------------------------------------------------------- */
label,.label{display:block;font-weight:600;margin:.9rem 0 .25rem}
.field:first-child label{margin-top:0}
input[type=text],input[type=email],input[type=password],input[type=number],input:not([type]),select,textarea{width:100%;padding:.6rem .75rem;border:1px solid var(--border-strong);border-radius:9px;background:var(--surface);color:var(--text);font:inherit;transition:border-color .12s,box-shadow .12s}
input:hover,select:hover,textarea:hover{border-color:var(--faint)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 25%,transparent)}
input[aria-invalid=true]{border-color:var(--bad)}
input:disabled{background:var(--surface-2);color:var(--faint)}
textarea{min-height:6.5rem;font-family:var(--mono);font-size:.85rem;resize:vertical}
input[type=checkbox],input[type=radio]{width:1.05rem;height:1.05rem;accent-color:var(--primary);margin:0}
.hint{color:var(--muted);font-size:.86rem;margin:.3rem 0 0;min-height:1.2em}
.hint.ok{color:var(--ok)}.hint.bad,.err{color:var(--bad)}
.input-row{display:flex;gap:.5rem}.input-row input{flex:1}
.pw{position:relative}.pw input{padding-right:4.2rem}.pw button{position:absolute;right:.35rem;top:50%;transform:translateY(-50%)}
.check{display:flex;gap:.6rem;align-items:flex-start;font-weight:500;margin:.5rem 0}
.check input{margin-top:.2rem;flex:none}
.check small{display:block;color:var(--muted);font-weight:400}
.unl{display:flex;align-items:center;gap:.4rem;font-weight:500;color:var(--muted);margin:.3rem 0 0}
.unl input{width:auto}
.strength{height:4px;border-radius:99px;background:var(--surface-2);margin-top:.4rem;overflow:hidden}.strength span{display:block;height:100%;width:0;background:var(--bad);transition:width .2s,background .2s}
.strength.s2 span{background:var(--warn)}.strength.s3 span,.strength.s4 span{background:var(--ok)}

/* radio cards (work without JS; :has() reveals dependent options) */
.choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.6rem}
.choice{position:relative;margin:0;font-weight:500;cursor:pointer}
.choice input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.choice .face{display:block;border:1px solid var(--border-strong);border-radius:10px;padding:.7rem .8rem;background:var(--surface);height:100%;transition:border-color .12s,background .12s}
.choice .face b{display:block}.choice .face small{color:var(--muted);font-weight:400;display:block;margin-top:.1rem}
.choice:hover .face{border-color:var(--primary)}
.choice input:checked + .face{border-color:var(--primary);background:var(--primary-soft);box-shadow:inset 0 0 0 1px var(--primary)}
.choice input:focus-visible + .face{outline:3px solid color-mix(in srgb,var(--primary) 55%,transparent);outline-offset:2px}
.choice input:disabled + .face{opacity:.55;cursor:not-allowed;background:var(--surface-2)}
.when-gpu{display:none}
form:has(input[name=gpu]:not([value="0"]):checked) .when-gpu{display:block}
.keylist{display:flex;flex-direction:column;gap:.45rem}
.keyopt{display:flex;gap:.7rem;align-items:flex-start;border:1px solid var(--border);border-radius:10px;padding:.6rem .75rem;margin:0;font-weight:500;cursor:pointer;background:var(--surface)}
.keyopt:has(input:checked){border-color:var(--primary);background:var(--primary-soft)}
.keyopt input{margin-top:.2rem}.keyopt .fp{display:block;color:var(--muted);font:400 .78rem var(--mono);word-break:break-all}

/* ---- two-column builder ------------------------------------------------------------------------ */
.cols{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:1.2rem;align-items:start}
.sticky{position:sticky;top:76px}
@media(max-width:900px){.cols{grid-template-columns:1fr}.sticky{position:static}}
.step{display:flex;gap:.65rem;align-items:center;margin-bottom:.5rem}.step h2{margin:0}
.step .n{width:24px;height:24px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-weight:700;font-size:.8rem;flex:none}
dl.kv{display:grid;grid-template-columns:auto 1fr;gap:.35rem .9rem;margin:0}dl.kv dt{color:var(--muted)}dl.kv dd{margin:0;word-break:break-word}
.summary dl{margin:.4rem 0 .9rem}
.estimate{border-radius:var(--r-sm);padding:.6rem .75rem;font-size:.88rem;background:var(--surface-2);border:1px solid var(--border);margin:.6rem 0}
.estimate.ok{background:var(--ok-soft);border-color:transparent;color:var(--ok)}.estimate.warn{background:var(--warn-soft);border-color:transparent;color:var(--warn)}.estimate.bad{background:var(--bad-soft);border-color:transparent;color:var(--bad)}

/* ---- box cards ----------------------------------------------------------------------------------- */
.box{display:flex;flex-direction:column;gap:.7rem;margin:0}
.box header{display:flex;justify-content:space-between;align-items:center;gap:.6rem}
.box-name{font-weight:700;font-size:1.05rem;color:var(--text);text-decoration:none;overflow:hidden;text-overflow:ellipsis}.box-name:hover{color:var(--primary)}
.specs{display:flex;gap:.35rem;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.specs li{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.8rem;background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:.05rem .5rem;color:var(--muted)}
.live{font-size:.88rem;margin:0;color:var(--muted)}.live.ok{color:var(--ok)}.live.warn{color:var(--warn)}.live.bad{color:var(--bad)}
.connect{display:flex;align-items:center;gap:.4rem;background:var(--surface-2);border:1px solid var(--border);border-radius:9px;padding:.25rem .3rem .25rem .7rem}
.connect code{background:none;padding:0;flex:1;white-space:normal;overflow-wrap:anywhere;font-size:.77rem;line-height:1.35}
.box footer{display:flex;gap:.5rem;align-items:center;margin-top:auto}
.empty{text-align:center;padding:2.4rem 1rem}.empty svg{width:56px;height:56px;color:var(--faint);margin-bottom:.5rem}.empty h2{font-size:1.15rem}.empty p{max-width:420px;margin:.4rem auto 1rem}
.banner{display:flex;gap:.75rem;align-items:flex-start;border-radius:var(--r);padding:.85rem 1rem;margin:0 0 var(--gap);border:1px solid var(--border);background:var(--surface-2)}
.banner.ok{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 25%,transparent)}.banner.info,.banner.warn{background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 25%,transparent)}.banner.bad{background:var(--bad-soft);border-color:color-mix(in srgb,var(--bad) 25%,transparent)}
.banner div>b:first-child{display:block}.banner p{margin:.15rem 0 0;color:var(--muted)}
.cmd{display:flex;gap:.5rem;align-items:center}.cmd pre{flex:1}
.timeline{list-style:none;margin:0;padding:0}.timeline li{display:flex;gap:.7rem;padding:.4rem 0;border-bottom:1px solid var(--border);font-size:.9rem}.timeline li:last-child{border:0}.timeline time{color:var(--faint);min-width:5.5rem;flex:none}
.onboard ol{list-style:none;padding:0;margin:.4rem 0 0;display:grid;gap:.6rem}
.onboard li{display:flex;gap:.7rem;align-items:flex-start}.onboard .ck{width:24px;height:24px;border-radius:50%;border:2px solid var(--border-strong);display:grid;place-items:center;flex:none;font-size:.8rem;font-weight:700;color:transparent}
.onboard li.done .ck{background:var(--ok);border-color:var(--ok);color:#fff}.onboard li.done b{color:var(--muted);text-decoration:line-through}

/* ---- tables (collapse to labelled cards on phones) -------------------------------------------------- */
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.6rem .5rem;border-bottom:1px solid var(--border);vertical-align:middle}
th{color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}tr:last-child td{border-bottom:0}
@media(max-width:700px){
  table.stack thead{display:none}table.stack tr{display:block;border-bottom:1px solid var(--border);padding:.5rem 0}
  table.stack td{display:flex;justify-content:space-between;gap:1rem;border:0;padding:.2rem .1rem;text-align:right}
  table.stack td::before{content:attr(data-label);color:var(--muted);font-size:.78rem;font-weight:600;text-align:left}
}
.toolbar{display:flex;gap:.6rem;align-items:center;margin-bottom:.8rem;flex-wrap:wrap}.toolbar input{max-width:280px}

/* ---- toasts / dialog / auth -------------------------------------------------------------------------- */
.toasts{position:fixed;top:68px;right:1rem;display:flex;flex-direction:column;gap:.5rem;z-index:60;max-width:min(420px,calc(100vw - 2rem))}
.toast{display:flex;gap:.7rem;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--info);border-radius:10px;padding:.7rem .8rem;box-shadow:var(--shadow);animation:in .2s}
.toast.ok{border-left-color:var(--ok)}.toast.warn,.toast.error{border-left-color:var(--warn)}.toast span{flex:1}
.toast .x{background:none;border:0;color:var(--muted);cursor:pointer;font-size:1.2rem;line-height:1;padding:0 .2rem}
.toast.out{opacity:0;transform:translateX(12px);transition:.25s}
@keyframes in{from{opacity:0;transform:translateY(-6px)}}
dialog{border:1px solid var(--border);border-radius:var(--r);padding:1.3rem 1.4rem;max-width:440px;width:calc(100vw - 2rem);background:var(--surface);color:var(--text);box-shadow:0 20px 60px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(10,10,20,.55);backdrop-filter:blur(2px)}
dialog h2{margin-bottom:.4rem}dialog .actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1.1rem}
.auth{display:grid;grid-template-columns:1.05fr 1fr;gap:2.5rem;align-items:center;min-height:calc(100vh - 190px)}
.auth-art h1{font-size:2.1rem;line-height:1.15;margin-bottom:.8rem}
.auth-art ul{list-style:none;padding:0;margin:1.2rem 0 0;display:grid;gap:.8rem}
.auth-art li{display:flex;gap:.7rem;color:var(--muted)}.auth-art li b{color:var(--text)}
.auth-art .ic{width:34px;height:34px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;flex:none}
.auth-art .ic svg{width:18px;height:18px}
.auth .card{margin:0;padding:1.6rem}
@media(max-width:820px){.auth{grid-template-columns:1fr;gap:1.2rem}.auth-art{display:none}}
.foot{color:var(--faint);font-size:.82rem;padding-bottom:2rem}
.errpage{text-align:center;padding:4rem 1rem}.errpage .code{font-size:4rem;font-weight:800;color:var(--faint);line-height:1}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
.btn-block{width:100%}
.m0{margin:0!important}.mb{margin-bottom:var(--gap)}.mt{margin-top:.9rem}
details summary{cursor:pointer}details[open] summary{margin-bottom:.4rem}
.narrow-card{max-width:420px;margin:3rem auto}.w-sm{max-width:9rem}.row.end{justify-content:flex-end}
input[type=search]{width:100%;padding:.6rem .75rem;border:1px solid var(--border-strong);border-radius:9px;background:var(--surface);color:var(--text);font:inherit}
/* labels inside multi-column grids must all start at the same height (the first-child rule above only fixed cell #1) */
.grid>.field label{margin-top:0}
.w-md{max-width:16rem}