/* Nodes & Systems Practice Test. Everything is scoped to .ns-pt so theme styles cannot reach in, and these cannot leak out.
   Layout: a drafting sheet. Deep title band, cool paper ground, 1px ruled plates, one question per sheet with a mono title block. */

@font-face{font-family:"NS Bricolage";src:url("fonts/bricolage-grotesque-latin-wght-normal.woff2") format("woff2");font-weight:200 800;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"NS Jakarta";src:url("fonts/plus-jakarta-sans-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"NS Jakarta";src:url("fonts/plus-jakarta-sans-latin-ext-400-normal.woff2") format("woff2");font-weight:400;font-display:swap;unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"NS Jakarta";src:url("fonts/plus-jakarta-sans-latin-600-normal.woff2") format("woff2");font-weight:600 800;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"NS Plex Mono";src:url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"NS Plex Mono";src:url("fonts/ibm-plex-mono-latin-ext-400-normal.woff2") format("woff2");font-weight:400 500;font-display:swap;unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"NS Plex Mono";src:url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

.ns-pt,.ns-pt-body{
  --paper:#EDEEE7;--sheet:#F6F6F1;--ink:#0B1724;--ink2:#3C4A57;--deep:#07121F;
  --rule:#C9CDC4;--survey:#8A949B;--red:#C2401F;--on-red:#FFFFFF;--verd:#2C6A5E;--ochre:#8A6516;
  --on-deep:#ECEDE6;--on-deep2:#AEB8C0;--deep-rule:#24364A;
  --f-disp:"NS Bricolage","Arial Narrow",system-ui,sans-serif;
  --f-body:"NS Jakarta",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"NS Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){
  .ns-pt:not(.ns-pt-embed),.ns-pt-body{
    --paper:#0B1622;--sheet:#101E2C;--ink:#ECEDE6;--ink2:#AEB8C0;--deep:#050D17;
    --rule:#24364A;--survey:#6E7A84;--red:#E8673F;--on-red:#0B1622;--verd:#5FB3A1;--ochre:#D9AE52;color-scheme:dark}
}
body.ns-pt-body{margin:0;background:var(--paper);min-height:100vh;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body.ns-pt-body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:20;background:var(--deep)}

.ns-pt{background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.6;text-align:left;-webkit-text-size-adjust:100%}
.ns-pt *,.ns-pt *::before,.ns-pt *::after{box-sizing:border-box}
.ns-pt p,.ns-pt h1,.ns-pt h2,.ns-pt h3,.ns-pt figure,.ns-pt dl,.ns-pt dd{margin:0}
.ns-pt h1,.ns-pt h2,.ns-pt h3{font-family:var(--f-disp);color:var(--ink);text-wrap:balance;text-transform:none}
.ns-pt h1{font-weight:800;letter-spacing:-.035em;line-height:.92;font-size:clamp(2.4rem,1.2rem + 4.6vw,5rem)}
.ns-pt h2{font-weight:750;letter-spacing:-.025em;line-height:1;font-size:clamp(1.6rem,1.2rem + 1.6vw,2.4rem)}
.ns-pt h3{font-weight:700;letter-spacing:-.012em;line-height:1.15;font-size:clamp(1.15rem,1rem + .6vw,1.4rem)}
.ns-pt a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.ns-pt :focus-visible{outline:2px solid var(--red);outline-offset:3px}
.ns-pt .mono{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;font-weight:500}
.ns-pt .wrap{max-width:1240px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.ns-pt .boot,.ns-pt .ns-pt-boot{padding:48px 16px;color:var(--ink2)}
.ns-pt .sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* band */
.ns-pt .band{background:var(--deep);color:var(--on-deep);position:sticky;top:env(safe-area-inset-top,0px);z-index:15;border-bottom:1px solid var(--deep-rule)}
.ns-pt-embed .band{display:none}
.admin-bar .ns-pt .band{top:calc(env(safe-area-inset-top,0px) + 32px)}
@media (max-width:782px){.admin-bar .ns-pt .band{top:env(safe-area-inset-top,0px)}}
.ns-pt .band .wrap{display:flex;align-items:center;gap:16px;min-height:56px;padding-block:8px;flex-wrap:wrap}
.ns-pt .mark{display:flex;align-items:center;gap:10px;font-family:var(--f-disp);font-weight:800;font-stretch:88%;font-size:1.25rem;line-height:1.2;letter-spacing:-.02em;white-space:nowrap;color:var(--on-deep);text-decoration:none}
.ns-pt .who{max-width:28ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:560px){.ns-pt .who{display:none}}
.ns-pt .mark svg{flex:none;width:24px;height:21.19px;display:block;transform:translateY(.04em)}
.ns-pt .ctx{color:var(--on-deep2);margin-left:auto;display:flex;gap:12px 16px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.ns-pt .timer{font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-size:1.15rem;font-weight:500;color:var(--on-deep);letter-spacing:.02em}
.ns-pt .timer.low{color:#F08A66}
.ns-pt .net{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:#F0C766}

/* buttons */
.ns-pt .btn{display:inline-flex;align-items:center;justify-content:center;font:600 .95rem/1 var(--f-body);padding:13px 20px;border-radius:2px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;text-decoration:none;text-transform:none;letter-spacing:normal;box-shadow:none;transition:background .15s,color .15s,border-color .15s;min-height:44px}
.ns-pt .btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.ns-pt .btn.primary{background:var(--red);border-color:var(--red);color:var(--on-red)}
.ns-pt .btn.primary:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.ns-pt .btn.small{padding:9px 14px;font-size:.85rem;min-height:40px}
.ns-pt .btn[disabled]{opacity:.45;cursor:not-allowed}
.ns-pt .btn[disabled]:hover{background:transparent;color:var(--ink)}
.ns-pt .btn.primary[disabled]:hover{background:var(--red);color:var(--on-red);border-color:var(--red)}
.ns-pt .btn.warn{border-color:var(--red);color:var(--red);background:transparent}
.ns-pt .btn.warn:hover{background:var(--red);color:var(--on-red)}
.ns-pt .band .btn{border-color:var(--on-deep2);color:var(--on-deep)}
.ns-pt .band .btn:hover{background:var(--on-deep);color:var(--deep)}
.ns-pt .band .btn.warn{border-color:#F08A66;color:#F08A66}
.ns-pt .band .btn.warn:hover{background:#F08A66;color:var(--deep)}
.ns-pt .linkbtn{background:none;border:0;padding:0;font:inherit;color:inherit;text-decoration:underline;text-underline-offset:3px;cursor:pointer;min-height:0}

/* layout */
.ns-pt .plate{border-top:1px solid var(--ink);padding-top:16px;display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap}
.ns-pt .plate .mono{color:var(--ink2)}
.ns-pt main{display:block;padding-block:48px 112px}
.ns-pt .stack{display:grid;gap:48px}
.ns-pt .lead{font-size:clamp(1.05rem,1rem + .3vw,1.2rem);color:var(--ink2);max-width:62ch}
.ns-pt .note{font-size:.875rem;color:var(--ink2);max-width:70ch}
.ns-pt .row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.ns-pt .alert{border:1px solid var(--red);border-left-width:4px;padding:12px 16px;background:var(--sheet);color:var(--ink);max-width:72ch}
.ns-pt .banner{border:1px solid var(--ink);background:var(--sheet);padding:16px 20px;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.ns-pt .acct{display:flex;gap:8px 16px;flex-wrap:wrap;color:var(--ink2);font-size:.9rem}

/* home */
.ns-pt .home-top{display:grid;gap:24px;padding-top:8px}
.ns-pt .setup{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);column-gap:48px;row-gap:32px;align-items:start}
.ns-pt .setup-form{display:contents}
.ns-pt .setup-form > *{grid-column:1}
.ns-pt .cond{grid-column:2;grid-row:1 / span 2;align-self:stretch;display:flex;flex-direction:column}
@media (max-width:900px){.ns-pt .setup{grid-template-columns:minmax(0,1fr)}.ns-pt .cond{grid-column:1;grid-row:auto}}
.ns-pt fieldset{border:0;margin:0;padding:0;display:grid;gap:12px;min-width:0}
.ns-pt legend{padding:0;margin-bottom:12px;color:var(--ink2)}
.ns-pt .choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--rule)}
@media (max-width:520px){.ns-pt .choices{grid-template-columns:minmax(0,1fr)}}
.ns-pt .choice{position:relative;display:grid;gap:6px;padding:20px;cursor:pointer;border-right:1px solid var(--rule);background:var(--paper);margin:0}
.ns-pt .choice:last-child{border-right:0}
@media (max-width:520px){.ns-pt .choice{border-right:0;border-bottom:1px solid var(--rule)}.ns-pt .choice:last-child{border-bottom:0}}
.ns-pt .choice input{position:absolute;opacity:0;pointer-events:none}
.ns-pt .choice .ct{font-family:var(--f-disp);font-weight:700;font-size:1.25rem;letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
.ns-pt .choice .ct::before{content:"";width:14px;height:14px;border:1.5px solid var(--ink);border-radius:50%;flex:none}
.ns-pt .choice .cd{font-size:.9rem;color:var(--ink2)}
.ns-pt .choice:has(input:checked){background:var(--sheet);box-shadow:inset 0 0 0 2px var(--ink)}
.ns-pt .choice:has(input:checked) .ct::before{background:var(--red);border-color:var(--red);box-shadow:inset 0 0 0 3px var(--sheet)}
.ns-pt .choice:has(input:focus-visible){outline:2px solid var(--red);outline-offset:-2px}
.ns-pt select,.ns-pt input[type=text],.ns-pt input[type=email]{font:inherit;font-size:1rem;color:var(--ink);background:var(--sheet);border:1.5px solid var(--ink);border-radius:2px;padding:10px 12px;max-width:100%;min-height:44px;box-shadow:none;line-height:1.3}
.ns-pt input[type=checkbox]{accent-color:var(--red);width:18px;height:18px;margin:0}
.ns-pt .cond-h{display:flex;justify-content:space-between;gap:12px;margin-bottom:12px;color:var(--ink2)}
.ns-pt .spec{flex:1;margin:0;border:1px solid var(--rule);background:var(--sheet);display:grid;grid-template-columns:auto 1fr;grid-auto-rows:1fr}
.ns-pt .spec dt,.ns-pt .spec dd{margin:0;padding:12px 20px;border-bottom:1px solid var(--rule);display:flex;align-items:center}
.ns-pt .spec dt{color:var(--ink2)}
.ns-pt .spec dd{font-variant-numeric:tabular-nums;font-weight:600}
.ns-pt .spec > :nth-last-child(-n+2){border-bottom:0}
.ns-pt .entry{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--rule)}
@media (max-width:720px){.ns-pt .entry{grid-template-columns:minmax(0,1fr)}}
.ns-pt .entry > div{padding:24px;display:grid;gap:16px;align-content:start;background:var(--sheet)}
.ns-pt .entry > div + div{border-left:1px solid var(--rule)}
@media (max-width:720px){.ns-pt .entry > div + div{border-left:0;border-top:1px solid var(--rule)}}

/* tables */
.ns-pt .tbl-wrap{overflow-x:auto}
.ns-pt table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums;margin:0;border:0;background:transparent}
.ns-pt th,.ns-pt td{text-align:left;padding:10px 12px;border:0;border-bottom:1px solid var(--rule);vertical-align:middle;background:transparent;color:var(--ink)}
.ns-pt th{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;font-weight:500;color:var(--ink2);border-bottom:1px solid var(--ink)}
.ns-pt td.num,.ns-pt th.num{text-align:right}
.ns-pt .empty{padding:20px 0;color:var(--ink2)}

/* exam */
.ns-pt .exam{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;align-items:start;padding-block:32px 112px}
@media (max-width:960px){.ns-pt .exam{grid-template-columns:minmax(0,1fr);gap:24px}}
.ns-pt .sheet{background:var(--sheet);border:1px solid var(--rule);min-width:0}
.ns-pt .titleblock{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--rule)}
.ns-pt .titleblock > div{padding:10px 16px;border-right:1px solid var(--rule)}
.ns-pt .titleblock > div:last-child{border-right:0;margin-left:auto}
.ns-pt .titleblock .k{display:block;color:var(--ink2);font-size:.66rem}
.ns-pt .titleblock .v{font-family:var(--f-mono);font-size:.82rem;font-weight:500}
.ns-pt .qbody{padding:24px;display:grid;gap:24px}
@media (max-width:520px){.ns-pt .qbody{padding:16px}}
.ns-pt .stem{font-size:1.05rem;max-width:68ch}
.ns-pt .ask{font-weight:600}
.ns-pt .case{border:1px solid var(--rule);background:var(--paper)}
.ns-pt .case summary{padding:12px 16px;cursor:pointer;display:flex;justify-content:space-between;gap:12px;list-style:none}
.ns-pt .case summary::-webkit-details-marker{display:none}
.ns-pt .case summary::after{content:"Hide";font-family:var(--f-mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink2)}
.ns-pt .case:not([open]) summary::after{content:"Show"}
.ns-pt .case .cbody{padding:0 16px 16px;display:grid;gap:12px;font-size:.95rem;max-width:72ch}
.ns-pt .case ul,.ns-pt .fb ul,.ns-pt .steps ul{margin:0;padding-left:18px;display:grid;gap:6px;list-style:disc}
.ns-pt .opts{display:grid;border-top:1px solid var(--rule)}
.ns-pt .opt{display:grid;grid-template-columns:minmax(0,1fr) auto;border-bottom:1px solid var(--rule)}
.ns-pt .opt label{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;padding:14px 12px;cursor:pointer;align-items:start;margin:0;font-weight:400}
.ns-pt .opt input{position:absolute;opacity:0;pointer-events:none}
.ns-pt .key{font-family:var(--f-mono);font-weight:500;font-size:.85rem;width:30px;height:30px;display:grid;place-items:center;border:1.5px solid var(--ink);border-radius:2px;flex:none}
.ns-pt .opt.single .key{border-radius:50%}
.ns-pt .opt:has(input:checked){background:var(--paper);box-shadow:inset 3px 0 0 var(--ink)}
.ns-pt .opt:has(input:checked) .key{background:var(--ink);color:var(--sheet)}
.ns-pt .opt:has(input:focus-visible){outline:2px solid var(--red);outline-offset:-2px}
.ns-pt .opt.struck .ot{text-decoration:line-through;text-decoration-color:var(--red);color:var(--survey)}
.ns-pt .strike{background:none;border:0;border-left:1px solid var(--rule);color:var(--ink2);padding:0 14px;cursor:pointer;font-family:var(--f-mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;min-width:64px}
.ns-pt .strike:hover{color:var(--red)}
.ns-pt .opt.is-correct{box-shadow:inset 4px 0 0 var(--verd)}
.ns-pt .opt.is-correct .key{border-color:var(--verd);background:var(--verd);color:var(--sheet)}
.ns-pt .opt.is-wrong{box-shadow:inset 4px 0 0 var(--red)}
.ns-pt .opt.is-wrong .key{border-color:var(--red);background:var(--red);color:var(--on-red)}
.ns-pt .locked .opt label{cursor:default}
.ns-pt .tag{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;padding:2px 6px;border:1px solid currentColor;border-radius:2px;white-space:nowrap}
.ns-pt .tag.ok{color:var(--verd)}
.ns-pt .tag.no{color:var(--red)}
.ns-pt .tag.flag{color:var(--ochre)}
.ns-pt .match{display:grid;border-top:1px solid var(--rule)}
.ns-pt .mrow{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:16px;padding:12px 0;border-bottom:1px solid var(--rule);align-items:center}
@media (max-width:640px){.ns-pt .mrow{grid-template-columns:minmax(0,1fr);gap:8px}}
.ns-pt .mrow select{width:100%}
.ns-pt .mrow.ok select,.ns-pt .pd select.ok{border-color:var(--verd)}
.ns-pt .mrow.no select,.ns-pt .pd select.no{border-color:var(--red)}
.ns-pt .pd{font-size:1.1rem;line-height:2.4;max-width:72ch}
.ns-pt .pd select{font-size:1rem;padding:6px 8px;margin:0 2px;min-height:0}
.ns-pt .calc{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.ns-pt .calc input{font-family:var(--f-mono);font-size:1.15rem;width:14ch;font-variant-numeric:tabular-nums}
.ns-pt .qtable{border:1px solid var(--rule);background:var(--paper);max-width:640px}
.ns-pt .qtable th,.ns-pt .qtable td{padding:8px 12px}
.ns-pt .fig{border:1px solid var(--rule);background:var(--paper);padding:16px;display:grid;gap:10px}
.ns-pt .fig .figh{display:flex;justify-content:space-between;gap:12px;color:var(--ink2)}
.ns-pt .fig svg{width:100%;height:auto;display:block;max-width:640px}
.ns-pt .legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.85rem;color:var(--ink2)}
.ns-pt .legend span{display:inline-flex;align-items:center;gap:6px}
.ns-pt .legend i{width:22px;height:0;border-top:2px solid;display:inline-block}
.ns-pt .board{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border:1px solid var(--rule);overflow-x:auto}
@media (max-width:640px){.ns-pt .board{grid-template-columns:repeat(5,minmax(96px,1fr))}}
.ns-pt .colbtn{background:var(--sheet);border:0;border-right:1px solid var(--rule);border-radius:0;padding:12px 10px;text-align:left;cursor:pointer;display:grid;gap:8px;align-content:start;color:var(--ink);font:inherit;min-height:180px;text-transform:none;letter-spacing:normal}
.ns-pt .colbtn:last-child{border-right:0}
.ns-pt .colbtn:hover{background:var(--paper);color:var(--ink)}
.ns-pt .colbtn .cn{font-family:var(--f-disp);font-weight:700;font-size:1.05rem}
.ns-pt .colbtn .cm{font-family:var(--f-mono);font-size:.68rem;color:var(--ink2);text-transform:uppercase;letter-spacing:.04em;line-height:1.5}
.ns-pt .cards{display:flex;flex-wrap:wrap;gap:4px}
.ns-pt .cards b{width:16px;height:12px;border:1px solid var(--ink2);display:block}
.ns-pt .colbtn[aria-checked="true"]{box-shadow:inset 0 0 0 2px var(--ink);background:var(--paper)}
.ns-pt .colbtn.is-correct{box-shadow:inset 0 0 0 2px var(--verd)}
.ns-pt .colbtn.is-wrong{box-shadow:inset 0 0 0 2px var(--red)}
.ns-pt .fb{border-top:2px solid var(--ink);padding-top:16px;display:grid;gap:12px;max-width:72ch}
.ns-pt .fb.ok{border-top-color:var(--verd)}
.ns-pt .fb.no{border-top-color:var(--red)}
.ns-pt .fb .fh{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.ns-pt .fb ul{color:var(--ink2)}
.ns-pt .yours{font-size:.9rem;color:var(--ink2)}
.ns-pt .qnav{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 24px;border-top:1px solid var(--rule)}
@media (max-width:520px){.ns-pt .qnav{padding:16px}}
.ns-pt .qnav .row{gap:8px}
.ns-pt .side{display:grid;gap:16px;position:sticky;top:calc(env(safe-area-inset-top,0px) + 88px)}
@media (max-width:960px){.ns-pt .side{position:static}}
.ns-pt .grid-nav{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:6px}
.ns-pt .nb{position:relative;font-family:var(--f-mono);font-size:.8rem;padding:8px 0;border:1px solid var(--rule);background:var(--sheet);color:var(--ink);cursor:pointer;border-radius:2px;font-variant-numeric:tabular-nums;min-height:36px;text-transform:none;letter-spacing:normal}
.ns-pt .nb:hover{border-color:var(--ink);background:var(--sheet);color:var(--ink)}
.ns-pt .nb.ans{background:var(--ink);color:var(--sheet);border-color:var(--ink)}
.ns-pt .nb.cur{outline:2px solid var(--red);outline-offset:1px}
.ns-pt .nb.flg::after{content:"";position:absolute;top:2px;right:2px;width:6px;height:6px;background:var(--ochre)}
.ns-pt .nb.ok{background:var(--verd);border-color:var(--verd);color:var(--sheet)}
.ns-pt .nb.no{background:transparent;border-color:var(--red);color:var(--red)}
.ns-pt .keyline{display:grid;gap:6px;font-size:.8rem;color:var(--ink2)}
.ns-pt .keyline span{display:flex;align-items:center;gap:8px}
.ns-pt .sw{width:12px;height:12px;border:1px solid var(--rule);display:inline-block}

/* review, break, results */
.ns-pt .tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.ns-pt .tile{border:0;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);border-radius:0;padding:14px;background:var(--sheet);text-align:left;cursor:pointer;font:inherit;color:var(--ink);display:grid;gap:6px;text-transform:none;letter-spacing:normal}
.ns-pt .tile:hover{background:var(--paper);color:var(--ink)}
.ns-pt .score{display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:end}
@media (max-width:640px){.ns-pt .score{grid-template-columns:minmax(0,1fr);gap:16px}}
.ns-pt .big{font-family:var(--f-disp);font-weight:800;font-size:clamp(4rem,2rem + 8vw,8rem);line-height:.85;letter-spacing:-.04em;font-variant-numeric:tabular-nums lining-nums}
.ns-pt .big small{font-size:.35em;letter-spacing:-.01em;color:var(--ink2)}
.ns-pt .band-chip{display:inline-block;font-family:var(--f-mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;padding:3px 8px;border:1px solid currentColor;border-radius:2px;white-space:nowrap}
.ns-pt .b-above{color:var(--verd)}.ns-pt .b-target{color:var(--ink)}.ns-pt .b-below{color:var(--ochre)}.ns-pt .b-needs{color:var(--red)}
.ns-pt .bar{height:6px;background:var(--rule);min-width:80px;position:relative}
.ns-pt .bar i{position:absolute;inset:0 auto 0 0;background:var(--ink)}
.ns-pt .cols3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
@media (max-width:900px){.ns-pt .cols3{grid-template-columns:minmax(0,1fr)}}
.ns-pt .steps{list-style:none;margin:0;padding:0;counter-reset:st;display:grid;border-top:1px solid var(--ink)}
.ns-pt .steps > li{counter-increment:st;display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;padding-block:20px;border-bottom:1px solid var(--rule);margin:0}
.ns-pt .steps > li::before{content:counter(st,decimal-leading-zero);font-family:var(--f-mono);font-size:.85rem;color:var(--red);padding-top:4px}
.ns-pt .steps .sb{display:grid;gap:10px;min-width:0}
.ns-pt .steps .shd{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.ns-pt .steps ul{max-width:72ch}
.ns-pt .rv{border-top:1px solid var(--rule);padding-block:24px;display:grid;gap:16px}
.ns-pt .rv .rvh{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.ns-pt .filter{display:flex;border:1px solid var(--ink);width:max-content;max-width:100%;flex-wrap:wrap}
.ns-pt .filter button{font:600 .85rem/1 var(--f-body);padding:10px 14px;background:transparent;border:0;border-right:1px solid var(--ink);border-radius:0;color:var(--ink);cursor:pointer;min-height:40px;text-transform:none;letter-spacing:normal}
.ns-pt .filter button:last-child{border-right:0}
.ns-pt .filter button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.ns-pt .brk{max-width:640px;display:grid;gap:24px;padding-block:72px}
.ns-pt .brk .big{font-size:clamp(3.5rem,2rem + 6vw,6rem)}
.ns-pt .gate{max-width:560px;display:grid;gap:20px}
.ns-pt .gate label{display:grid;gap:8px}
.ns-pt .gate .chk{display:flex;gap:10px;align-items:flex-start;font-size:.95rem}
.ns-pt .teaser{border:1px solid var(--ink);background:var(--sheet)}
.ns-pt .teaser .th{padding:12px 16px;border-bottom:1px solid var(--rule);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.ns-pt .install{position:fixed;left:max(16px,env(safe-area-inset-left,0px));right:max(16px,env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:30;max-width:520px;margin:0 auto;background:var(--deep);color:var(--on-deep);border:1px solid var(--deep-rule);padding:16px;display:grid;gap:10px}
.ns-pt .install p{color:var(--on-deep2);font-size:.9rem}
.ns-pt .install strong{color:var(--on-deep)}
.ns-pt .install .btn{border-color:var(--on-deep2);color:var(--on-deep)}
.ns-pt .install .btn.primary{background:var(--red);border-color:var(--red);color:var(--on-red)}

.ns-pt-embed{background:transparent;margin-top:12px}
.ns-pt-embed main{padding-block:16px 48px}
.ns-pt-embed .wrap{padding-left:0;padding-right:0;max-width:1100px;margin:0}

@media (prefers-reduced-motion:reduce){.ns-pt *{transition:none!important;scroll-behavior:auto!important}}