@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--radius-sm:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.relative{position:relative}.sticky{position:sticky}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.grid{display:grid}.hidden{display:none}.rounded{border-radius:.25rem}}:root{--bg:#0a0e1a;--bg-2:#0d1426;--term-fill:#14203a;--panel:#111b32;--panel-edge:#1f2c4b;--line:#1c2742;--ink:#e8edf9;--ink-soft:#9fabc9;--ink-faint:#66739a;--rail:#4dd6c4;--accent:#5eead4;--accent-2:#a78bfa;--lit:#5eead4;--class:#a78bfa;--escape:#fbbf24;--anchor:#fb7daf;--dot:#8ab4e8;--m1:#34d399;--m2:#38bdf8;--bad:#fb7185;--radius:16px;--radius-sm:10px;--shadow:0 24px 60px -34px #000000d9;--font-ui:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, "JetBrains Mono", "SF Mono", "Fira Code", "Cascadia Code", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body{margin:0}body{min-block-size:100dvh;color:var(--ink);font-family:var(--font-ui);background-color:var(--bg);background-image:radial-gradient(120% 80% at 12% -10%,var(--accent),transparent 60%),radial-gradient(120% 90% at 100% 0%,var(--accent-2),transparent 55%),linear-gradient(var(--bg) 0%,var(--bg-2) 100%)}@supports (color:color-mix(in lab,red,red)){body{background-image:radial-gradient(120% 80% at 12% -10%,color-mix(in oklab,var(--accent) 12%,transparent),transparent 60%),radial-gradient(120% 90% at 100% 0%,color-mix(in oklab,var(--accent-2) 14%,transparent),transparent 55%),linear-gradient(var(--bg) 0%,var(--bg-2) 100%)}}body{-webkit-font-smoothing:antialiased;background-attachment:fixed}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}.lab{flex-direction:column;gap:1.25rem;inline-size:min(1180px,100% - 2rem);margin-inline:auto;padding-block:clamp(1.25rem,4vh,2.5rem) 4rem;display:flex}.lab__grid{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:1.25rem;display:grid}@media(max-width:880px){.lab__grid{grid-template-columns:1fr}}.panel{background:var(--panel)}@supports (color:color-mix(in lab,red,red)){.panel{background:color-mix(in oklab,var(--panel) 92%,transparent)}}.panel{border:1px solid var(--panel-edge);border-radius:var(--radius);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);padding:1.1rem 1.2rem 1.3rem}.panel__title{letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 .7rem;font-size:.72rem;font-weight:700}.masthead{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.masthead__brand{align-items:center;gap:.85rem;display:flex}.masthead__mark{block-size:48px;inline-size:48px;font-family:var(--font-mono);color:var(--bg);background:linear-gradient(140deg,var(--accent),var(--accent-2));box-shadow:0 0 26px -6px var(--accent);border-radius:14px;place-items:center;font-size:1.35rem;font-weight:700;display:grid}@supports (color:color-mix(in lab,red,red)){.masthead__mark{box-shadow:0 0 26px -6px color-mix(in oklab,var(--accent) 70%,transparent)}}.masthead__title{letter-spacing:-.01em;margin:0;font-size:1.55rem}.masthead__tag{color:var(--ink-soft);margin:.15rem 0 0;font-size:.9rem}.legend{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel);flex-wrap:wrap;gap:.4rem .9rem;margin:0;padding:.55rem .75rem;list-style:none;display:flex}@supports (color:color-mix(in lab,red,red)){.legend{background:color-mix(in oklab,var(--panel) 70%,transparent)}}.legend__item{color:var(--ink-soft);align-items:center;gap:.4rem;font-size:.78rem;display:inline-flex}.legend__dot{background:currentColor;border:1.5px solid;border-radius:4px;block-size:11px;inline-size:11px}@supports (color:color-mix(in lab,red,red)){.legend__dot{background:color-mix(in oklab,currentColor 16%,transparent)}}.legend__dot--lit{color:var(--lit)}.legend__dot--class{color:var(--class)}.legend__dot--escape{color:var(--escape)}.legend__dot--anchor{color:var(--anchor);border-radius:50%}.legend__dot--group{color:var(--accent-2);border-style:dashed}.re-field{border:1px solid var(--panel-edge);border-radius:var(--radius-sm);background:var(--bg);font-family:var(--font-mono);align-items:center;gap:.35rem;padding:.55rem .7rem;transition:border-color .18s,box-shadow .18s;display:flex}.re-field:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent)}@supports (color:color-mix(in lab,red,red)){.re-field:focus-within{box-shadow:0 0 0 3px color-mix(in oklab,var(--accent) 22%,transparent)}}.re-field__slash{color:var(--ink-faint);font-size:1.15rem}.re-field__input{min-inline-size:0;color:var(--accent);font:inherit;background:0 0;border:0;flex:1;font-size:1rem}.re-field__input::placeholder{color:var(--ink-faint)}.re-field__input:focus{outline:none}.re-field__input[aria-invalid=true]{color:var(--bad)}.re-field__flags{color:var(--ink-soft);white-space:nowrap;font-size:.85rem}.flags{flex-wrap:wrap;gap:.4rem;margin-block-start:.7rem;display:flex}.flag{border:1px solid var(--panel-edge);border-radius:var(--radius-sm);background:var(--bg);block-size:2.1rem;inline-size:2.1rem;color:var(--ink-soft);font-family:var(--font-mono);cursor:pointer;font-size:.95rem;font-weight:600;transition:background .15s,color .15s,border-color .15s}.flag:hover{border-color:var(--accent);color:var(--ink)}.flag[aria-pressed=true]{background:linear-gradient(140deg,var(--accent),var(--accent-2));color:var(--bg);border-color:#0000}.error{border-radius:var(--radius-sm);border:1px solid var(--bad);margin:.85rem 0 0;padding:.6rem .75rem}@supports (color:color-mix(in lab,red,red)){.error{border:1px solid color-mix(in oklab,var(--bad) 45%,transparent)}}.error{background:var(--bad)}@supports (color:color-mix(in lab,red,red)){.error{background:color-mix(in oklab,var(--bad) 16%,transparent)}}.error{color:var(--bad)}@supports (color:color-mix(in lab,red,red)){.error{color:color-mix(in oklab,var(--bad) 60%,white)}}.error{font-family:var(--font-mono);font-size:.85rem}.examples{flex-wrap:wrap;gap:.45rem;display:flex}.example{border:1px solid var(--panel-edge);background:var(--bg);color:var(--ink-soft);cursor:pointer;border-radius:999px;padding:.4rem .75rem;font-size:.82rem;transition:background .15s,color .15s,border-color .15s}.example:hover{border-color:var(--accent-2);color:var(--ink);background:var(--accent-2)}@supports (color:color-mix(in lab,red,red)){.example:hover{background:color-mix(in oklab,var(--accent-2) 16%,transparent)}}.subject__head{justify-content:space-between;align-items:center;gap:.75rem;display:flex}.summary{font-family:var(--font-mono);border:1px solid var(--line);color:var(--ink-soft);white-space:nowrap;border-radius:999px;padding:.25rem .6rem;font-size:.8rem}.summary[data-state=ok]{color:var(--m1)}@supports (color:color-mix(in lab,red,red)){.summary[data-state=ok]{color:color-mix(in oklab,var(--m1) 65%,white)}}.summary[data-state=ok]{border-color:var(--m1)}@supports (color:color-mix(in lab,red,red)){.summary[data-state=ok]{border-color:color-mix(in oklab,var(--m1) 45%,transparent)}}.summary[data-state=ok]{background:var(--m1)}@supports (color:color-mix(in lab,red,red)){.summary[data-state=ok]{background:color-mix(in oklab,var(--m1) 14%,transparent)}}.summary[data-state=error]{color:var(--bad)}@supports (color:color-mix(in lab,red,red)){.summary[data-state=error]{color:color-mix(in oklab,var(--bad) 60%,white)}}.summary[data-state=error]{border-color:var(--bad)}@supports (color:color-mix(in lab,red,red)){.summary[data-state=error]{border-color:color-mix(in oklab,var(--bad) 45%,transparent)}}.summary[data-state=error]{background:var(--bad)}@supports (color:color-mix(in lab,red,red)){.summary[data-state=error]{background:color-mix(in oklab,var(--bad) 14%,transparent)}}.subject__input{border:1px solid var(--panel-edge);border-radius:var(--radius-sm);background:var(--bg);inline-size:100%;color:var(--ink);font-family:var(--font-mono);resize:vertical;margin-block-start:.4rem;padding:.7rem .8rem;font-size:.92rem;line-height:1.6;transition:border-color .18s,box-shadow .18s}.subject__input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent);outline:none}@supports (color:color-mix(in lab,red,red)){.subject__input:focus{box-shadow:0 0 0 3px color-mix(in oklab,var(--accent) 20%,transparent)}}.subject__sub{color:var(--ink-soft);margin:1rem 0 .45rem;font-size:.78rem;font-weight:600}.subject__hint{color:var(--ink-faint);font-weight:400}.highlight{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--bg);min-block-size:3.2rem;max-block-size:16rem;font-family:var(--font-mono);white-space:pre-wrap;word-break:break-word;color:var(--ink-soft);padding:.7rem .8rem;font-size:.92rem;line-height:1.7;overflow:auto}.hl{color:#eafff6;background:var(--m1);border-radius:5px;padding:.06em .12em}@supports (color:color-mix(in lab,red,red)){.hl{background:color-mix(in oklab,var(--m1) 26%,transparent)}}.hl{box-shadow:inset 0 -2px 0 var(--m1)}.hl[data-alt="1"]{color:#e8f6ff;background:var(--m2)}@supports (color:color-mix(in lab,red,red)){.hl[data-alt="1"]{background:color-mix(in oklab,var(--m2) 26%,transparent)}}.hl[data-alt="1"]{box-shadow:inset 0 -2px 0 var(--m2)}.hl[data-empty=true]{box-shadow:inset 2px 0 0 var(--escape);padding-inline:0}.groups{flex-direction:column;gap:.35rem;display:flex}.groups__empty{color:var(--ink-faint);margin:0;font-size:.85rem}.group-row{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel);align-items:baseline;gap:.6rem;padding:.35rem .55rem;display:flex}@supports (color:color-mix(in lab,red,red)){.group-row{background:color-mix(in oklab,var(--panel) 60%,transparent)}}.group-row{font-family:var(--font-mono);font-size:.85rem}.group-row__name{min-inline-size:3.2rem;color:var(--accent-2);flex:none;font-weight:600}.group-row__value{color:var(--ink);word-break:break-word}.group-row__value[data-empty=true]{color:var(--ink-faint)}.diagram-panel__hint{color:var(--ink-faint);margin:-.4rem 0 .7rem;font-size:.82rem}.diagram-pane{border:1px solid var(--line);border-radius:var(--radius-sm);background:radial-gradient(100% 120% at 0 0,var(--accent),transparent 50%),var(--bg);padding:.4rem;overflow:auto}@supports (color:color-mix(in lab,red,red)){.diagram-pane{background:radial-gradient(100% 120% at 0 0,color-mix(in oklab,var(--accent) 8%,transparent),transparent 50%),var(--bg)}}.diagram-pane{max-block-size:60vh}.rr-svg{display:block}.rr-rail{fill:none;stroke:var(--rail);stroke-width:2px;stroke-linecap:round;stroke-linejoin:round}.rr-cap{fill:var(--rail)}.rr-term rect{fill:var(--term-fill);stroke-width:1.6px}.rr-term text{fill:var(--ink);font-family:var(--font-mono);font-size:13px}.rr-lit rect{stroke:var(--lit);fill:var(--lit)}@supports (color:color-mix(in lab,red,red)){.rr-lit rect{fill:color-mix(in oklab,var(--lit) 10%,var(--term-fill))}}.rr-class rect{stroke:var(--class);fill:var(--class)}@supports (color:color-mix(in lab,red,red)){.rr-class rect{fill:color-mix(in oklab,var(--class) 12%,var(--term-fill))}}.rr-escape rect{stroke:var(--escape);fill:var(--escape)}@supports (color:color-mix(in lab,red,red)){.rr-escape rect{fill:color-mix(in oklab,var(--escape) 12%,var(--term-fill))}}.rr-anchor rect{stroke:var(--anchor);fill:var(--anchor)}@supports (color:color-mix(in lab,red,red)){.rr-anchor rect{fill:color-mix(in oklab,var(--anchor) 14%,var(--term-fill))}}.rr-dot rect{stroke:var(--dot);fill:var(--dot)}@supports (color:color-mix(in lab,red,red)){.rr-dot rect{fill:color-mix(in oklab,var(--dot) 12%,var(--term-fill))}}.rr-group{fill:var(--accent-2)}@supports (color:color-mix(in lab,red,red)){.rr-group{fill:color-mix(in oklab,var(--accent-2) 6%,transparent)}}.rr-group{stroke:var(--accent-2)}@supports (color:color-mix(in lab,red,red)){.rr-group{stroke:color-mix(in oklab,var(--accent-2) 55%,transparent)}}.rr-group{stroke-width:1.3px;stroke-dasharray:5 4}.rr-group-label{fill:var(--ink-faint);font-family:var(--font-mono);font-size:11px}.rr-rep{fill:var(--ink-soft);font-family:var(--font-mono);font-size:11px}.rr-rep-bg{fill:var(--panel);stroke:var(--line);stroke-width:1px}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}