@import "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&family=Space+Grotesk:wght@500;600;700&display=swap";@layer components,utilities;@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;--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;-webkit-text-decoration:inherit;-webkit-text-decoration: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}}:root{--baby:#fadadd;--hot:#ff69b4;--lilac:#c8a2c8;--paper:#fff;--soft:#fff7fa;--ink:#333;--muted:#6d6570;--line:#333;--track:#f7eef4;--panel:#fff;--code-line:#f4ecf2;--shadow:#333;--radius:12px}*{box-sizing:border-box}html,body{color:var(--ink);background:#fff;margin:0}button,select,input{font:inherit}button{color:inherit}button:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--hot);outline-offset:2px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app{--background:#fff;--foreground:#333;background:linear-gradient(#c8a2c817 1px,transparent 1px),linear-gradient(90deg,#c8a2c817 1px,transparent 1px),var(--background);min-height:100vh;color:var(--foreground);background-size:28px 28px;padding:0 clamp(16px,3vw,44px) 24px;font-family:Space Grotesk,system-ui,sans-serif;transition:background-color .2s,color .2s}.app.dark{--background:#171419;--foreground:#fff8fc;--paper:#211d23;--soft:#2a2229;--ink:#fff8fc;--muted:#cbbfc9;--line:#fff8fc;--track:#211c22;--panel:#211d23;--code-line:#332a32;--shadow:#0c090d}.site-header{border-bottom:2px solid var(--line);justify-content:space-between;align-items:center;gap:24px;min-height:86px;display:flex}.brand-lockup,.header-actions,.panel-heading>div,.player-buttons{align-items:center;display:flex}.brand-lockup{gap:14px}.brand-mark{border:2px solid var(--line);background:var(--baby);width:46px;height:46px;box-shadow:4px 4px 0 var(--shadow);color:#333;border-radius:8px;place-content:center;font:700 10px/1.05 JetBrains Mono,monospace;display:grid;transform:rotate(-2deg)}.brand-mark span{display:block}.eyebrow,.control-label,.stats span,.code-meta,footer,.line-label,.keyboard-hint{text-transform:uppercase;letter-spacing:.08em;font-family:JetBrains Mono,monospace}.eyebrow{color:var(--hot);margin:0 0 2px;font-size:11px;font-weight:700}h1{letter-spacing:-.055em;margin:0;font-size:clamp(25px,3vw,36px);line-height:.95}.header-actions{gap:14px}.keyboard-hint{color:var(--muted);font-size:10px}kbd{border:1.5px solid var(--line);background:var(--panel);min-width:23px;height:22px;color:var(--ink);border-bottom-width:3px;border-radius:4px;place-items:center;padding:0 5px;font-size:10px;display:inline-grid}.icon-button,.square-button,.action-button,.play-button{border:2px solid var(--line);background:var(--panel);cursor:pointer;border-radius:8px;transition:transform .12s,box-shadow .12s,background .12s}.icon-button:hover,.square-button:hover:not(:disabled),.action-button:hover,.play-button:hover{box-shadow:0 3px 0 var(--shadow);transform:translateY(-2px)}.icon-button{place-items:center;width:42px;height:42px;display:grid}.control-panel{border:2px solid var(--line);border-radius:var(--radius);background:var(--panel);justify-content:space-between;align-items:end;gap:12px;margin:20px 0 14px;padding:12px;display:flex}.control-group{gap:6px;min-width:0;display:grid}.control-label{color:var(--muted);font-size:10px;font-weight:700}.segment{flex-wrap:wrap;gap:4px;display:flex}.segment button{border:1.5px solid var(--line);cursor:pointer;background:0 0;border-radius:7px;min-height:36px;padding:7px 13px;font-family:JetBrains Mono,monospace;font-size:12px;font-weight:600}.segment button:hover{background:var(--soft)}.segment button.is-selected{background:var(--hot);color:#29232a;box-shadow:inset 0 -3px #3333333d}.action-button{white-space:nowrap;align-items:center;gap:8px;min-height:40px;padding:8px 14px;font-family:JetBrains Mono,monospace;font-size:12px;font-weight:700;display:inline-flex}.stats{border:2px solid var(--line);border-radius:var(--radius);background:var(--panel);grid-template-columns:.8fr 1fr .8fr 1.35fr;display:grid;overflow:hidden}.stats>div{border-right:2px solid var(--line);flex-direction:column;justify-content:center;gap:3px;min-height:68px;padding:10px 14px;display:flex}.stats>div:last-child{border-right:0}.stats span{color:var(--muted);font-size:9px;font-weight:700}.stats strong{font:700 clamp(18px,2vw,24px)/1 Space Grotesk,sans-serif}.stats small{color:var(--muted);font-size:.55em}.workspace{grid-template-columns:minmax(330px,.82fr) minmax(460px,1.18fr);align-items:stretch;gap:14px;margin-top:14px;display:grid}.panel{border:2px solid var(--line);border-radius:var(--radius);background:var(--panel);min-width:0;overflow:hidden}.panel-heading{border-bottom:2px solid var(--line);justify-content:space-between;align-items:center;gap:10px;min-height:58px;padding:10px 13px;display:flex}.panel-heading>div{gap:10px}.panel-heading h2{letter-spacing:-.03em;margin:0;font-size:18px}.panel-number{border:1.5px solid var(--line);background:var(--lilac);color:#29232a;border-radius:6px;place-items:center;width:30px;height:30px;font:700 11px JetBrains Mono,monospace;display:grid}.status-badge{border:1.5px solid var(--line);background:var(--soft);text-transform:uppercase;border-radius:999px;padding:6px 9px;font:700 10px JetBrains Mono,monospace}.status-badge--compare{background:var(--baby)}.status-badge--swap{background:var(--hot);color:#29232a}.status-badge--done,.status-badge--sorted{background:var(--lilac);color:#29232a}.track{background:linear-gradient(90deg,transparent 49.6%,#33333329 49.6%,#33333329 50.4%,transparent 50.4%),var(--track);height:426px;position:relative;overflow:hidden}.track:before,.track:after{content:"";opacity:.35;background:repeating-linear-gradient(to bottom,var(--hot) 0 22px,transparent 22px 38px);width:6px;position:absolute;top:0;bottom:0}.track:before{left:3%}.track:after{right:3%}.chequered-line{border-block:2px solid var(--line);background-color:#fff;background-image:linear-gradient(45deg,#333 25%,#0000 25% 75%,#333 75%),linear-gradient(45deg,#333 25%,#0000 25% 75%,#333 75%);background-position:0 0,9px 9px;background-size:18px 18px;height:18px;position:absolute;top:16px;left:0;right:0}.line-label{color:var(--muted);white-space:nowrap;font-size:8px;position:absolute;top:39px;left:50%;transform:translate(-50%)}.grid-slot{color:var(--muted);font:700 10px JetBrains Mono,monospace;position:absolute;transform:translate(-100%,20px)}.car-position{width:58px;transition:left .42s cubic-bezier(.2,.8,.2,1),top .42s cubic-bezier(.2,.8,.2,1);position:absolute;transform:translate(-50%)}.car{filter:drop-shadow(0 4px #33333338);width:58px;transition:transform .18s,filter .18s;position:relative}.car svg{width:100%;height:82px;display:block;overflow:visible}.car-body{fill:var(--baby);stroke:var(--line);stroke-width:2.4px;stroke-linejoin:round}.car-shadow{fill:#3333332e}.car-wing{fill:var(--hot);stroke:var(--line);stroke-width:2.2px}.car-tyre{fill:var(--line)}.car-cockpit{fill:var(--lilac);stroke:var(--line);stroke-width:2px}.car text{fill:#29232a;font:700 16px JetBrains Mono,monospace}.car--compare{filter:drop-shadow(0 0 7px var(--hot));transform:scale(1.1)}.car--compare .car-body{fill:#fff0a8}.car--swap{filter:drop-shadow(0 0 8px var(--hot));transform:scale(1.12)rotate(2deg)}.car--swap .car-body{fill:var(--hot)}.car--current .car-body{fill:var(--lilac)}.car--sorted{filter:drop-shadow(0 4px #33333338)}.car--sorted .car-body{fill:#bde8d0}.sorted-flag{z-index:3;border:1.5px solid var(--line);color:#29232a;background:#bde8d0;border-radius:50%;place-items:center;width:24px;height:24px;display:grid;position:absolute;top:-3px;right:-4px}.panel-heading--code .segment{flex-wrap:nowrap}.panel-heading--code .segment button{min-height:31px;padding:5px 9px;font-size:10px}.code-meta{border-bottom:1.5px solid var(--line);min-height:31px;color:var(--muted);justify-content:space-between;gap:10px;padding:7px 13px;font-size:9px;font-weight:700;display:flex}.code-render{background:var(--paper);height:395px;overflow:auto}.code-render pre{min-height:100%;background:var(--paper)!important;white-space:pre-wrap!important;word-break:break-word!important;margin:0!important;padding:13px 0!important;font-family:JetBrains Mono,monospace!important;font-size:clamp(12px,1.08vw,14px)!important;line-height:1.72!important}.code-render code{counter-reset:line;display:block}.code-render .line{width:100%;min-height:1.72em;padding:0 22px 0 52px;transition:background .12s;display:inline-block;position:relative}.code-render .line:before{counter-increment:line;content:counter(line);text-align:right;color:#9d939b;border-right:1px solid #786e7847;width:38px;padding-right:10px;position:absolute;left:0}.code-render .line.is-active{background:linear-gradient(90deg,var(--hot) 0 5px,var(--code-line) 5px 100%);font-weight:600}.code-render .line.is-active:before{color:var(--ink)}.code-loading{background:var(--paper);height:395px;color:var(--muted);padding:20px;font:13px JetBrains Mono,monospace}.player{border:2px solid var(--line);border-radius:var(--radius);background:var(--panel);grid-template-columns:auto 1fr auto;align-items:center;gap:18px;margin-top:14px;padding:11px 12px;display:grid}.player-buttons{gap:7px}.square-button{place-items:center;width:39px;height:39px;display:grid}.square-button:disabled{opacity:.35;cursor:not-allowed}.play-button{background:var(--hot);color:#29232a;justify-content:center;align-items:center;gap:8px;min-width:95px;min-height:41px;padding:8px 15px;font-weight:700;display:inline-flex}.scrubber input{width:100%;accent-color:var(--hot);cursor:pointer}.speed-control{text-transform:uppercase;align-items:center;gap:8px;font:700 10px JetBrains Mono,monospace;display:flex}.speed-control select{border:1.5px solid var(--line);background:var(--panel);height:36px;color:var(--ink);border-radius:6px;padding:0 25px 0 8px}footer{color:var(--muted);justify-content:center;gap:28px;padding:15px 2px 0;font-size:9px;font-weight:700;display:flex}footer span:before{content:"•";color:var(--hot);margin-right:8px}@media (width<=900px){.keyboard-hint{display:none}.workspace{grid-template-columns:minmax(290px,.8fr) minmax(410px,1.2fr)}}@media (width<=759px){.app{padding-inline:12px}.site-header{min-height:75px}.control-panel{flex-direction:column;align-items:stretch}.action-button{justify-content:center}.stats{grid-template-columns:1fr 1fr}.stats>div:nth-child(2){border-right:0}.stats>div:nth-child(-n+2){border-bottom:2px solid var(--line)}.workspace{grid-template-columns:1fr}.track{height:426px}.code-render,.code-loading{height:auto;min-height:340px;max-height:430px}.player{z-index:20;box-shadow:0 5px 0 var(--shadow);grid-template-columns:1fr auto;gap:12px;position:sticky;bottom:8px}.player-buttons{grid-column:1/-1;justify-content:center}.scrubber{order:3}.speed-control{order:4}footer{flex-wrap:wrap;gap:8px 18px}}@media (width<=460px){.eyebrow{font-size:9px}.brand-mark{width:41px;height:41px}.segment button{flex:1;padding-inline:8px}.control-panel .segment{grid-template-columns:1fr 1fr;display:grid}.panel-heading--code{flex-direction:column;align-items:flex-start}.panel-heading--code .segment{width:100%}.panel-heading--code .segment button{flex:1}.code-meta{font-size:8px}.car-position{width:54px}.player{padding:9px}.square-button{width:36px}.play-button{min-width:88px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}