/* ScormProof v2. Lab notebook kept in public. Three inks: ink, rule blue, margin red. */
@font-face{font-family:"Archivo";src:url(/fonts/archivo-var.woff2) format("woff2");font-weight:100 900;font-stretch:62% 125%;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(/fonts/jetbrainsmono-var.woff2) format("woff2");font-weight:400 700;font-display:swap}
:root{
  --paper:#f5f7fb;--sheet:#fff;--ink:#141c2e;--ink-2:#414b60;--ink-3:#5a6478;
  --rule:#d5dfee;--rule-2:#6f86ab;--blue:#2747a0;--red:#c0281b;--red-wash:#fbe9e7;
  --sans:"Archivo",ui-sans-serif,sans-serif;--mono:"JetBrains Mono",ui-monospace,monospace;
  --margin:clamp(16px,4vw,56px);--max:1180px;--grid:24px;
  --ease:cubic-bezier(.16,1,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scrollbar-color:var(--rule-2) var(--paper);accent-color:var(--red)}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--sans);font-stretch:100%;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:3px}
a:not(.btn):not(.nl):not(.skip):hover{color:var(--ink);text-decoration-thickness:2px}
img,svg{display:block;max-width:100%}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;z-index:10}
.skip:focus{left:8px}
.skip:hover{color:#fff}

/* margin rule: two thin red lines down the page, notebook style */
@media (min-width:960px){
  body{background-image:linear-gradient(90deg,transparent calc(var(--rule-x) - 4px),var(--red) calc(var(--rule-x) - 4px),var(--red) calc(var(--rule-x) - 3px),transparent calc(var(--rule-x) - 3px),transparent var(--rule-x),var(--red) var(--rule-x),var(--red) calc(var(--rule-x) + 1px),transparent calc(var(--rule-x) + 1px));--rule-x:max(28px,calc((100vw - var(--max)) / 2 - 28px))}
}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--margin)}
h1,h2,h3{font-family:var(--sans);line-height:1.08;margin:0;text-wrap:balance;color:var(--ink)}
h1{font-size:clamp(2.4rem,5.6vw,4.4rem);font-weight:780;font-stretch:112%;letter-spacing:-.025em}
h2{font-size:clamp(1.55rem,2.6vw,2rem);font-weight:720;font-stretch:108%;letter-spacing:-.015em}
h3{font-size:1.2rem;font-weight:700;font-stretch:104%}
p{margin:0 0 1em;max-width:68ch;text-wrap:pretty}
.lead{font-size:1.2rem;line-height:1.5;color:var(--ink-2);max-width:56ch}
.small,.muted{font-size:.88rem;color:var(--ink-3)}
.num,.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:.92em;letter-spacing:-.01em}
table,.num{font-variant-numeric:tabular-nums}

/* header */
.top{border-bottom:1px solid var(--rule);background:color-mix(in srgb,var(--paper) 92%,transparent);position:sticky;top:0;z-index:5;backdrop-filter:blur(6px)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;font-stretch:118%;font-size:1.18rem;letter-spacing:-.02em}
.brand:hover{color:var(--ink)}
.brand svg{width:26px;height:26px;flex:none}
.nav nav{display:flex;gap:4px;align-items:center}
.nav nav a{color:var(--ink);text-decoration:none;padding:8px 12px;font-weight:550;font-size:.96rem}
.nav nav a:hover{background:var(--sheet);box-shadow:inset 0 0 0 1px var(--rule)}
.nav nav a[aria-current=page]{box-shadow:inset 0 -2px 0 var(--red)}
.nav nav a.nl{background:var(--ink);color:#fff}
.nav nav a.nl:hover{background:var(--red);color:#fff;box-shadow:none}
@media (max-width:640px){.nav{height:auto;padding-top:10px;padding-bottom:10px;flex-wrap:wrap;gap:6px}.nav nav{width:100%;justify-content:space-between}.nav nav a{padding:6px 8px;font-size:.92rem}.top{position:static}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;background:var(--ink);color:#fff;border:1px solid var(--ink);font:650 1rem/1 var(--sans);font-stretch:106%;text-decoration:none;cursor:pointer;transition:background .18s var(--ease),border-color .18s var(--ease)}
.btn:hover{background:var(--red);border-color:var(--red);color:#fff}
.btn.line{background:transparent;color:var(--ink)}
.btn.line:hover{background:var(--sheet);color:var(--ink);border-color:var(--ink)}
.btn[disabled]{background:var(--rule);border-color:var(--rule);color:var(--ink-2);cursor:not-allowed}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:start;padding:clamp(48px,8vw,104px) 0 clamp(56px,8vw,112px)}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 82%,var(--red-wash) 82%)}
.hero .lead{margin-top:24px}
.find{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px;align-items:stretch;max-width:560px}
.find label{flex:1 1 260px;display:flex;flex-direction:column;gap:6px;font-size:.86rem;font-weight:600;color:var(--ink-2)}
.find input{min-height:48px}
.find .btn{align-self:flex-end}
.find + p{margin-top:18px}
@media (max-width:880px){.hero{grid-template-columns:1fr}}

/* the sheet: quadrille paper, only where it rules data */
.sheet{background-color:var(--sheet);background-image:linear-gradient(var(--rule) 1px,transparent 1px),linear-gradient(90deg,var(--rule) 1px,transparent 1px);background-size:var(--grid) var(--grid);background-position:-1px -1px;border:1px solid var(--rule-2);box-shadow:0 1px 0 var(--rule),0 18px 40px -28px rgba(20,28,46,.45);padding:var(--grid)}
.entry-h{display:flex;justify-content:space-between;align-items:baseline;gap:12px;background:var(--sheet);margin:calc(var(--grid) * -1) calc(var(--grid) * -1) var(--grid);padding:12px var(--grid);border-bottom:1px solid var(--ink)}
.entry-no{font-family:var(--mono);font-weight:700;font-size:.9rem;color:var(--red)}
.entry-h .small{margin:0}
.sheet h2,.sheet h3{background:var(--sheet);display:inline}
.sheet .kvs{background:var(--sheet)}
.ledger{width:100%;border-collapse:collapse;background:var(--sheet);font-size:.94rem;margin-top:12px}
.ledger th,.ledger td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--rule);vertical-align:middle}
.ledger thead th{font-size:.78rem;font-weight:700;font-stretch:112%;color:var(--ink-2);border-bottom:1px solid var(--ink);letter-spacing:.02em}
.ledger tbody th{font-weight:600}
.witness{display:flex;gap:12px;align-items:flex-end;margin-top:var(--grid);background:var(--sheet);padding-top:8px;font-size:.88rem;color:var(--ink-2)}
.witness span.line{flex:1;border-bottom:1px solid var(--ink);height:1.3em}

/* states: claim marks and the empty rule box */
.c{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.c::before{content:"";width:10px;height:10px;flex:none;border:1.5px solid currentColor}
.c.yes::before{background:currentColor}
.c.part::before{background:linear-gradient(135deg,currentColor 50%,transparent 50%)}
.c.unk,.c.na,.c.nc{color:var(--ink-3)}
.c.na::before{border-style:dotted}
.c.nc::before{border-style:dashed}
.c.no{color:var(--red)}
.c.no::before{background:linear-gradient(45deg,transparent 45%,currentColor 45%,currentColor 55%,transparent 55%)}
.box{display:inline-flex;align-items:center;gap:8px;color:var(--ink-3);font-size:.9em;white-space:nowrap}
.box::before{content:"";width:22px;height:16px;flex:none;border:1px solid var(--rule-2);background:var(--sheet)}
.box.pass{color:var(--blue)}
.box.pass::before{background:var(--blue);border-color:var(--blue)}

/* home sections */
.band{padding:clamp(56px,8vw,104px) 0;border-top:1px solid var(--rule)}
.band > h2{max-width:22ch}
.band > p.lead{margin-top:14px}
.bench{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:0;margin-top:36px;border-top:1px solid var(--ink);border-left:1px solid var(--rule)}
.bench a{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:12px;row-gap:4px;padding:14px 16px;border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);text-decoration:none;color:var(--ink);background:var(--sheet);transition:background .15s var(--ease)}
.bench a:hover{background:var(--paper)}
.bench .entry-no{grid-row:1/3;padding-top:2px;font-size:.8rem}
.bench b{font-weight:650}
.bench .box{font-size:.8rem}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,5vw,80px);margin-top:12px}
.two h3{margin-bottom:10px}
@media (max-width:760px){.two{grid-template-columns:1fr}}
.cats{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;padding:0;list-style:none}
.cats a{display:inline-flex;gap:10px;align-items:center;padding:10px 16px;border:1px solid var(--rule-2);background:var(--sheet);color:var(--ink);text-decoration:none;font-weight:550}
.cats a:hover{border-color:var(--ink)}
.cats .num{color:var(--ink-3)}
.signup-band{display:grid;grid-template-columns:minmax(0,1.2fr) auto;gap:32px;align-items:end}
@media (max-width:760px){.signup-band{grid-template-columns:1fr}}

/* page heads */
.phead{padding:clamp(40px,6vw,72px) 0 28px}
.phead .lead{margin-top:16px}
.crumb{font-size:.9rem;color:var(--ink-3);margin-bottom:18px}
.crumb a{color:var(--ink-2)}

/* tools database */
.filters{display:grid;grid-template-columns:2fr repeat(3,1.2fr) 1.1fr;gap:14px 16px;align-items:end;padding:18px 20px;border:1px solid var(--rule-2);background:var(--sheet)}
.filters label{display:flex;flex-direction:column;gap:6px;font-size:.82rem;font-weight:650;color:var(--ink-2);font-stretch:106%}
.filters .checks{display:flex;gap:18px;grid-column:1/-1;flex-wrap:wrap;align-items:center}
.filters .checks label{flex-direction:row;align-items:center;gap:8px;font-size:.92rem;font-weight:500;color:var(--ink)}
.filters .checks button{margin-left:auto}
input,select,textarea{font:inherit;font-size:1rem;color:var(--ink);background:var(--sheet);border:1px solid var(--rule-2);border-radius:0;padding:10px 12px;min-height:44px;width:100%}
input[type=checkbox]{width:18px;height:18px;min-height:0;padding:0}
input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--red);outline-offset:0;border-color:var(--ink)}
.linkbtn{background:none;border:0;padding:6px 0;font:inherit;font-size:.92rem;color:var(--blue);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
@media (max-width:980px){.filters{grid-template-columns:1fr 1fr}.filters label:first-child{grid-column:1/-1}}
@media (max-width:520px){.filters{grid-template-columns:1fr}}
.count{margin:22px 0 10px;font-size:.92rem;color:var(--ink-2)}
.rows{border-top:1px solid var(--ink)}
.row{display:grid;grid-template-columns:52px minmax(0,2.2fr) minmax(0,1.5fr) minmax(0,1.1fr) 92px;gap:20px;padding:20px 0;border-bottom:1px solid var(--rule);align-items:start}
.row h2{font-size:1.2rem;font-stretch:106%;font-weight:700;letter-spacing:-.01em}
.row h2 a{color:var(--ink);text-decoration:none}
.row h2 a:hover{color:var(--blue);text-decoration:underline}
.row p{margin:6px 0 0;font-size:.95rem;color:var(--ink-2)}
.row .cat{font-size:.84rem;color:var(--ink-3);margin:2px 0 0}
.row ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:5px;font-size:.88rem}
.row .k{display:block;font-size:.76rem;font-weight:650;color:var(--ink-3);margin-bottom:6px;font-stretch:108%}
.row .money{text-align:right}
.row .money b{font-family:var(--mono);font-weight:600;font-size:1.05rem}
.row .entry-no{padding-top:4px}
.rowhead{display:grid;grid-template-columns:52px minmax(0,2.2fr) minmax(0,1.5fr) minmax(0,1.1fr) 92px;gap:20px;padding:10px 0;font-size:.76rem;font-weight:700;color:var(--ink-2);font-stretch:110%}
.rowhead span:last-child{text-align:right}
@media (max-width:860px){
  .rowhead{display:none}
  .row{grid-template-columns:44px 1fr 1fr;gap:12px 16px}
  .row > div:nth-child(2){grid-column:2/-1}
  .row > div:nth-child(3){grid-column:2/3}
  .row > div:nth-child(4){grid-column:3/4}
  .row .money{grid-column:2/-1;text-align:left;display:flex;gap:10px;align-items:baseline}
  .row .money .k{margin:0}
}
.empty{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;padding:32px;margin-top:8px;border:1px dashed var(--rule-2);background:var(--sheet)}
.empty::before{content:"";width:56px;height:40px;border:1px solid var(--rule-2)}
.empty h2{font-size:1.25rem;margin-bottom:8px}
.empty p{margin:0 0 10px;color:var(--ink-2)}

/* tool page */
.tool-h{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:clamp(28px,5vw,64px);align-items:start;padding:clamp(36px,5vw,64px) 0 clamp(40px,5vw,64px)}
.tool-h h1{font-size:clamp(2.3rem,5vw,4rem)}
.tool-h .lead{margin-top:16px}
.tool-h .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
@media (max-width:860px){.tool-h{grid-template-columns:1fr}}
.facts{display:grid;grid-template-columns:auto 1fr;gap:10px 16px;margin:0;background:var(--sheet);font-size:.94rem}
.facts dt{color:var(--ink-3);font-weight:600;font-size:.84rem;padding-top:2px}
.facts dd{margin:0}
.sec{padding:clamp(36px,5vw,56px) 0;border-top:1px solid var(--rule);display:grid;grid-template-columns:minmax(200px,.8fr) minmax(0,2fr);gap:clamp(20px,4vw,56px)}
.sec > h2{font-size:1.45rem}
.sec .note{margin-top:0}
@media (max-width:860px){.sec{grid-template-columns:1fr}}
.t{width:100%;border-collapse:collapse;font-size:.96rem;background:var(--sheet);border:1px solid var(--rule)}
.t th,.t td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--rule);vertical-align:top}
.t thead th{font-size:.8rem;font-weight:700;color:var(--ink-2);border-bottom:1px solid var(--ink);font-stretch:110%}
.t tbody th{font-weight:600;white-space:nowrap}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.kv{display:grid;grid-template-columns:minmax(140px,auto) 1fr;gap:12px 24px;margin:0}
.kv dt{color:var(--ink-3);font-weight:600;font-size:.9rem;padding-top:2px}
.kv dd{margin:0;max-width:62ch}
@media (max-width:520px){.kv{grid-template-columns:1fr;gap:2px}.kv dd{margin-bottom:12px}}
.note{border:1px solid var(--ink);background:var(--sheet);padding:16px 20px;margin:24px 0;max-width:68ch}
.note.warn{border-color:var(--red);background:var(--red-wash)}
.note p:last-child{margin:0}
.src{font-size:.88rem;color:var(--ink-3);margin-top:14px;overflow-wrap:anywhere}

/* prose pages */
.prose{max-width:70ch;padding-bottom:72px}
.prose h2{margin:44px 0 12px;font-size:1.5rem}
.prose li{margin-bottom:8px}
.list{list-style:none;padding:0;margin:0 0 72px;border-top:1px solid var(--ink);max-width:760px}
.list li{border-bottom:1px solid var(--rule)}
.list a{display:flex;justify-content:space-between;gap:16px;padding:18px 0;color:var(--ink);text-decoration:none;font-weight:600;font-size:1.1rem}
.list a:hover{color:var(--blue)}
.list .small{font-weight:400}
.stack{display:grid;gap:16px;max-width:560px;margin-bottom:72px}
.stack label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.92rem}
.signup{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;max-width:560px;margin-top:24px}
.signup label{flex:1 1 260px;display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.92rem}

/* footer */
.foot{border-top:1px solid var(--ink);margin-top:0;padding:40px 0 56px;background:var(--sheet);font-size:.92rem;color:var(--ink-2)}
.foot .cols{display:grid;grid-template-columns:1.4fr 1fr;gap:32px}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 20px;justify-content:flex-end}
.foot nav a{color:var(--ink)}
@media (max-width:700px){.foot .cols{grid-template-columns:1fr}.foot nav{justify-content:flex-start}}

/* one authored moment: claims ink in on the hero sheet */
@media (prefers-reduced-motion:no-preference){
  .inkin tbody tr{animation:ink .6s var(--ease) both}
  .inkin tbody tr:nth-child(2){animation-delay:.08s}.inkin tbody tr:nth-child(3){animation-delay:.16s}.inkin tbody tr:nth-child(4){animation-delay:.24s}.inkin tbody tr:nth-child(5){animation-delay:.32s}
  @keyframes ink{from{opacity:.55;transform:translateY(3px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media print{.top,.foot,.filters{display:none}body{background:#fff}}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.legend{display:flex;flex-wrap:wrap;gap:6px 18px;margin:0 0 14px}
.legend .c{font-size:.84rem}
@media (min-width:861px){.row .k{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.row ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 12px}.row .box{margin-top:4px}}
.hero{grid-template-columns:minmax(0,1.55fr) minmax(320px,1fr)}
.hero h1{font-size:clamp(2.4rem,5vw,4rem)}
@media (max-width:880px){.hero{grid-template-columns:1fr}}
.two{margin-top:28px}
@media (max-width:640px){.bench{grid-template-columns:repeat(2,minmax(0,1fr))}.bench a{grid-template-columns:1fr;padding:12px}.bench .entry-no{grid-row:auto}}
.sheet-t{font-size:1.2rem;font-stretch:104%}