/* JSON formatter JSN-11. Instrument Sheet chassis, accent #B5552E (rust). */
:root{
  --paper:#EDE9E2;
  --ink:#1E1D1B;
  --panel:#DEDACF;
  --line:#B7B0A2;
  --chassis:#2A2924;
  --accent:#B5552E;
  --on-accent:#EDE9E2;          /* paper on rust is 4.0:1: only LARGE type sits directly on the slab */
  --on-accent-ink:#1E1D1B;      /* everything small on the slab sits on a paper field as ink */
  --field:#EDE9E2;              /* the paper fields on the slab, fixed in both schemes */
  --field-dim:#DEDACF;
  --font-ui:"Familjen Grotesk",system-ui,sans-serif;
  --font-spec:"Martian Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
}
@media (prefers-color-scheme:dark){
  :root{--paper:#1E1D1B;--ink:#EDE9E2;--panel:#2A2924;--line:#4A473F;--chassis:#111}
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-ui);font-size:1rem;line-height:1.55;overflow-x:hidden}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button{font:inherit;color:inherit}
h1,h2,h3,p,dl,dd,ol,ul,figure,pre,fieldset{margin:0}
fieldset{padding:0;border:0;min-width:0}
legend{padding:0}
[hidden]{display:none!important}
code{font-family:var(--font-spec);font-size:.8em}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* label strip */
.strip{max-width:1120px;margin:0 auto;padding:18px 32px 0;display:flex;justify-content:space-between;align-items:baseline;font-family:var(--font-spec);font-size:.75rem;font-weight:500;letter-spacing:.02em;border-bottom:1px solid var(--line)}
.strip-maker{text-decoration:none;padding-bottom:12px}
.strip-maker:hover{text-decoration:underline;text-underline-offset:3px}
.strip-code{padding-bottom:12px}

/* page */
.wrap{max-width:1120px;margin:0 auto;padding:40px 32px 0}
.title{font-size:4.5rem;font-weight:600;line-height:1;letter-spacing:-.01em;margin-bottom:16px}
.lede{font-size:1.125rem;max-width:62ch;margin-bottom:28px}
.lede strong{font-weight:600}
.subhead{font-size:1.375rem;font-weight:500;line-height:1.25}
.section-head{font-size:2rem;font-weight:600;line-height:1.1;margin:40px 0 14px}

/* the rust slab: the one accent shape. Stamp, actions, both panes and the query all sit on it */
.hero{position:relative;background:var(--accent);color:var(--on-accent);padding:28px 40px 32px}
.hero::before,.hero::after,.hero>.ticks::before,.hero>.ticks::after{content:"";position:absolute;width:14px;height:14px;border:0 solid var(--on-accent);pointer-events:none;z-index:2}
.hero::before{top:0;left:0;border-top-width:1px;border-left-width:1px}
.hero::after{top:0;right:0;border-top-width:1px;border-right-width:1px}
.hero>.ticks::before{bottom:0;left:0;border-bottom-width:1px;border-left-width:1px}
.hero>.ticks::after{bottom:0;right:0;border-bottom-width:1px;border-right-width:1px}

/* the stamp: the verdict, enormous, and the count beside it */
.stamp{margin-bottom:22px}
.stamp-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 28px}
.stamp-word{font-size:7rem;font-weight:600;line-height:.9;letter-spacing:-.02em;display:inline-block;transform-origin:50% 100%}
.stamp-meta{font-family:var(--font-spec);font-size:1.5rem;font-weight:500;letter-spacing:.02em;white-space:pre;line-height:1.1}
.stamp-word.is-flip{animation:stamp-flip .32s var(--ease)}
@keyframes stamp-flip{0%{transform:rotateX(90deg);opacity:.2}60%{transform:rotateX(-12deg);opacity:1}100%{transform:none}}
.stamp-meta.is-snap{animation:meta-snap .26s var(--ease)}
@keyframes meta-snap{0%{transform:translateX(-10px);opacity:0}100%{transform:none;opacity:1}}
.verdict{font-size:1.5rem;font-weight:500;line-height:1.25;max-width:60ch;margin-top:14px;min-height:1.25em}

/* actions row */
.actions{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;margin-bottom:22px}
.act-group{display:flex;flex-wrap:wrap;gap:8px;align-items:stretch}
.seg{display:inline-flex}
.seg-btn{padding:11px 14px;min-width:44px;border:1px solid var(--on-accent);border-left-width:0;background:transparent;color:var(--on-accent);font-weight:500;line-height:1.2;cursor:pointer;border-radius:0;font-size:1.0625rem}
.seg-btn:first-child{border-left-width:1px}
.seg-btn:hover{background:rgba(237,233,226,.14)}
.seg-btn[aria-checked="true"]{background:var(--on-accent);color:var(--on-accent-ink)}
.seg-btn:focus-visible{outline:2px solid var(--on-accent);outline-offset:3px;position:relative;z-index:1}

/* the bench: two equal panes */
.bench{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 22px;align-items:stretch}
.pane{min-width:0;display:flex;flex-direction:column;position:relative}
.pane-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 12px;min-height:44px;padding:6px 10px 6px 14px;background:var(--field);color:var(--on-accent-ink);border-bottom:1px solid var(--line)}
.pane-label{font-family:var(--font-spec);font-size:.75rem;font-weight:500;letter-spacing:.02em;white-space:pre}
.pane-tools{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.pane-body{position:relative;flex:1;min-height:0;display:flex;flex-direction:column;background:var(--field);color:var(--on-accent-ink)}

/* the fields: paper on the slab, ink text, spec face because it is machine text */
.field-text,.field-out{display:block;width:100%;min-height:380px;height:100%;margin:0;color:var(--on-accent-ink);background:var(--field);border:0;border-radius:0;padding:12px 14px;font-family:var(--font-spec);font-size:.8125rem;line-height:1.5;letter-spacing:0;overflow:auto;tab-size:4}
.field-text{resize:vertical;white-space:pre}
.field-text::placeholder{color:#1E1D1B;opacity:.55;font-family:var(--font-ui);font-size:1.0625rem}
.field-text:focus-visible{outline:2px solid var(--on-accent-ink);outline-offset:-2px}
.field-out{white-space:pre;max-height:640px}
.field-out.is-wrap{white-space:pre-wrap;overflow-wrap:anywhere}
.field-out:empty::before{content:attr(data-empty);font-family:var(--font-ui);font-size:1.0625rem;line-height:1.45;color:#1E1D1B;opacity:.55;white-space:normal;display:block;max-width:34ch}
.field-out.is-stale{opacity:.45}
.pane-body.is-over .field-text{outline:2px dashed var(--on-accent-ink);outline-offset:-4px}

/* the bloom: each line slides into its indent, top to bottom */
.field-out.is-bloom .ln{display:inline-block;animation:bloom .34s var(--ease) both;animation-delay:min(calc(var(--i) * 4ms), 360ms)}
@keyframes bloom{0%{opacity:0;transform:translateX(calc(var(--d) * -1ch))}100%{opacity:1;transform:none}}
.field-out.is-reveal{animation:reveal .3s var(--ease)}
@keyframes reveal{0%{clip-path:inset(0 0 100% 0)}100%{clip-path:inset(0)}}

/* progress rule along the top of the output */
.rule{position:absolute;top:0;left:0;right:0;height:3px;background:transparent;z-index:2}
.rule i{display:block;height:100%;width:0;background:var(--on-accent-ink);transition:width .25s var(--ease)}
.rule.is-done i{transition:width .15s var(--ease),opacity .4s ease .3s;opacity:0}
.busy{position:absolute;top:10px;right:14px;margin:0;font-size:.9375rem;font-weight:500;color:var(--on-accent-ink)}

/* the error strip: ink on the paper field, the caret line snaps in */
.errstrip{position:absolute;left:0;right:0;top:0;z-index:3;margin:0;padding:12px 14px 14px;background:var(--on-accent-ink);color:var(--field);display:grid;gap:8px;grid-template-columns:1fr auto;align-items:start}
.err-msg{grid-column:1;font-size:1.0625rem;font-weight:500;line-height:1.3}
.errstrip .btn{grid-column:2;grid-row:1}
.err-line{grid-column:1 / -1;font-family:var(--font-spec);font-size:.8125rem;line-height:1.5;white-space:pre;overflow-x:auto;margin:0;padding:8px 10px;background:var(--accent);color:var(--field)}
.err-line .caret{display:block;transform-origin:0 50%}
.errstrip.is-snap .caret{animation:snap .22s var(--ease) both}
@keyframes snap{0%{transform:scaleX(0)}100%{transform:none}}
.err-hint{grid-column:1 / -1;font-size:.9375rem;line-height:1.4;opacity:.9}

/* tree view */
.tree{flex:1;min-height:380px;max-height:640px;overflow:auto;padding:10px 14px;font-size:.9375rem;line-height:1.45}
.node{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 8px;padding:1px 0}
.node-kids{padding-left:22px;border-left:1px solid var(--line)}
.node.is-closed+.node-kids{display:none}
.tg{width:18px;height:18px;padding:0;border:1px solid var(--on-accent-ink);background:transparent;color:inherit;font-family:var(--font-spec);font-size:.6875rem;line-height:1;cursor:pointer;border-radius:0;align-self:center;flex:0 0 auto}
.tg:hover{background:var(--field-dim)}
.tg:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.tg-spacer{width:18px;flex:0 0 auto}
.nk{font-weight:500}
.nk::after{content:":"}
.nv{font-family:var(--font-spec);font-size:.8125rem;overflow-wrap:anywhere}
.nv.is-str{font-style:normal}
.nb{font-family:var(--font-spec);font-size:.6875rem;letter-spacing:.02em;padding:1px 6px;border:1px solid var(--line);white-space:pre}
.more{margin:6px 0 4px 26px}

/* query */
.query{margin-top:16px}
.query-bar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:0 14px;background:var(--field);color:var(--on-accent-ink);padding:0 14px 0 14px;min-height:46px}
.query-label{font-family:var(--font-spec);font-size:.75rem;font-weight:500;letter-spacing:.02em}
.query-input{width:100%;min-width:0;height:46px;border:0;background:transparent;color:inherit;font-family:var(--font-spec);font-size:.875rem;padding:0;border-radius:0}
.query-input::placeholder{color:#1E1D1B;opacity:.5}
.query-input:focus-visible{outline:none}
.query-bar:focus-within{outline:2px solid var(--on-accent-ink);outline-offset:-2px}
.query-meta{font-family:var(--font-spec);font-size:.75rem;font-weight:500;letter-spacing:.02em;white-space:pre}
.query-out{margin:0;border-top:1px solid var(--line);background:var(--field);color:var(--on-accent-ink);font-family:var(--font-spec);font-size:.8125rem;line-height:1.5;padding:10px 14px;max-height:260px;overflow:auto;white-space:pre}
.query-out.is-err{font-family:var(--font-ui);font-size:1rem}

/* buttons */
.btn{position:relative;display:inline-block;padding:12px 18px;border:1px solid var(--ink);background:var(--paper);color:var(--ink);font-weight:500;line-height:1.2;cursor:pointer;border-radius:0;text-decoration:none}
.btn:hover{background:var(--panel)}
.btn:disabled{opacity:.45;cursor:default}
.btn.is-done{background:var(--ink);color:var(--paper)}
.btn-small{padding:7px 12px;font-size:.9375rem}
/* on the slab: the primary is ink-filled with the corner ticks on hover; the rest paper-filled */
.btn-primary{background:var(--on-accent-ink);border-color:var(--on-accent-ink);color:var(--on-accent);padding-left:22px;padding-right:22px;font-size:1.0625rem}
.btn-primary:hover{background:var(--on-accent-ink)}
.btn-primary .ticks{position:absolute;inset:0;pointer-events:none}
.btn-primary::before,.btn-primary::after,.btn-primary .ticks::before,.btn-primary .ticks::after{content:"";position:absolute;width:14px;height:14px;border:0 solid var(--on-accent);opacity:0;pointer-events:none}
.btn-primary::before{top:-6px;left:-6px;border-top-width:1px;border-left-width:1px}
.btn-primary::after{top:-6px;right:-6px;border-top-width:1px;border-right-width:1px}
.btn-primary .ticks::before{bottom:-6px;left:-6px;border-bottom-width:1px;border-left-width:1px}
.btn-primary .ticks::after{bottom:-6px;right:-6px;border-bottom-width:1px;border-right-width:1px}
.btn-primary:hover::before,.btn-primary:hover::after,.btn-primary:hover .ticks::before,.btn-primary:hover .ticks::after,
.btn-primary:focus-visible::before,.btn-primary:focus-visible::after,.btn-primary:focus-visible .ticks::before,.btn-primary:focus-visible .ticks::after{opacity:1}
.btn-primary:focus-visible{outline-color:var(--on-accent);outline-offset:4px}
.btn-primary.is-busy{opacity:.7}
.btn-paper{background:var(--on-accent);border-color:var(--on-accent);color:var(--on-accent-ink);font-size:1.0625rem}
.btn-paper:hover{background:#DEDACF}
.btn-paper[aria-pressed="true"]{background:var(--on-accent-ink);border-color:var(--on-accent-ink);color:var(--on-accent)}
.btn-paper:focus-visible{outline:2px solid var(--on-accent);outline-offset:3px}
.btn-paper.btn-small{font-size:.9375rem}
/* inside a paper head: ink outline */
.btn-ink{background:var(--field);border-color:#1E1D1B;color:#1E1D1B}
.btn-ink:hover{background:#DEDACF}
.btn-ink:focus-visible,.btn-ink:has(input:focus-visible){outline:2px solid #1E1D1B;outline-offset:2px}
.btn-ink.is-done{background:#1E1D1B;color:#EDE9E2}
.btn-fill{background:#1E1D1B;border-color:#1E1D1B;color:#EDE9E2}
.btn-fill:hover{background:#1E1D1B}
.btn-fill:focus-visible{outline:2px solid #1E1D1B;outline-offset:2px}
.btn-fill.is-done{background:var(--accent);border-color:var(--accent);color:#EDE9E2}
label.btn{cursor:pointer}

/* reading line */
.reading{font-family:var(--font-spec);font-size:.75rem;font-weight:500;letter-spacing:.02em;white-space:pre;margin:12px 0 0;overflow-x:auto}

/* under the slab: notes on the left, options on the right */
.under{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px 32px;margin-top:28px;align-items:start}
.left{grid-column:span 7;min-width:0;display:grid;gap:22px}
.controls{grid-column:span 5;min-width:0}
.tabnotes p{max-width:62ch;margin:10px 0 0}
.tabnotes .subhead{margin-bottom:4px}

/* controls panel */
.panel{position:relative;border:1px solid var(--line);background:var(--panel);padding:24px 28px 28px;display:grid;gap:22px}
.field{min-width:0}
.field>label,.field legend{display:block;font-weight:500;margin-bottom:10px}
.field-note{font-size:.9375rem;margin-top:8px}
.keys{display:grid;gap:4px}
.keys div{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:6px 0;border-top:1px solid var(--line)}
.keys div:last-child{border-bottom:1px solid var(--line)}
.keys dt{font-weight:400}
.keys dd{font-weight:500}
.checks{display:flex;flex-direction:column;gap:6px}
.field .check{display:flex;align-items:center;gap:10px;margin:0;font-weight:400;cursor:pointer;line-height:1.3}
.check input{width:18px;height:18px;margin:0;flex:0 0 auto;accent-color:var(--accent);cursor:pointer}
.check input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* notes */
.notes{display:grid;grid-template-columns:repeat(12,minmax(0,1fr))}
.notes>*{grid-column:span 8}
.notes p{max-width:68ch;margin-bottom:14px}

.foot{max-width:1120px;margin:0 auto;padding:20px 32px 40px;font-size:.875rem;opacity:.8}
.foot p{max-width:70ch}

/* narrow screens */
@media (max-width:960px){
  .notes>*{grid-column:span 12}
  .under{grid-template-columns:1fr}
  .left,.controls{grid-column:span 1}
  .controls{order:1}
  .left{order:2}
  .stamp-word{font-size:5.5rem}
}
@media (max-width:760px){
  .bench{grid-template-columns:1fr;gap:16px 0}
  .field-text,.field-out,.tree{min-height:240px}
  .field-out,.tree{max-height:420px}
}
@media (max-width:640px){
  .strip{padding:14px 16px 0}
  .wrap{padding:28px 16px 0}
  .title{font-size:2.75rem}
  .lede{font-size:1rem}
  .hero{padding:20px 16px 22px}
  .stamp-word{font-size:4.25rem}
  .stamp-meta{font-size:1.25rem}
  .verdict{font-size:1.5rem;margin-top:10px}
  .actions{gap:10px 12px;margin-bottom:16px}
  .btn-paper{font-size:1rem;padding:10px 13px}
  .pane-head{padding:6px 8px 6px 12px}
  .query-bar{grid-template-columns:auto minmax(0,1fr);padding:0 12px}
  .query-meta{grid-column:1 / -1;padding-bottom:8px}
  .errstrip{grid-template-columns:1fr}
  .errstrip .btn{grid-column:1;grid-row:auto;justify-self:start}
  .panel{padding:20px 16px 22px;gap:20px}
  .section-head{font-size:1.625rem}
  .foot{padding:16px 16px 32px}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}