:root{color-scheme:light;--relay-bg:#edf3ee;--relay-paper:#fbfcf7;--relay-ink:#193e32;--relay-muted:#61766a;--relay-line:#cfddd1;--relay-grid:#dae6da;--relay-cell:#edf2e6;--relay-track:#99b29f;--relay-rail:#f8faf1;--relay-green:#28604d;--relay-bright:#d6e8d7;--relay-orange:#b54129;--relay-parcel:#d88859;--relay-note:#f8f2e3;--relay-note-line:#e1d7bf;--relay-white:#fff;--ui-content-width:1200px;font-family:'Avenir Next',Avenir,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--relay-ink);background:var(--relay-bg)}
:root[data-theme="dark"]{color-scheme:dark;--relay-bg:#16231e;--relay-paper:#203129;--relay-ink:#e6eee0;--relay-muted:#a4b7a7;--relay-line:#3a5042;--relay-grid:#344b3c;--relay-cell:#273d2e;--relay-track:#718777;--relay-rail:#b8c8b7;--relay-green:#a8d6b7;--relay-bright:#2c503b;--relay-orange:#f49b78;--relay-parcel:#e9a373;--relay-note:#2f3126;--relay-note-line:#515541;--relay-white:#15251c}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark;--relay-bg:#16231e;--relay-paper:#203129;--relay-ink:#e6eee0;--relay-muted:#a4b7a7;--relay-line:#3a5042;--relay-grid:#344b3c;--relay-cell:#273d2e;--relay-track:#718777;--relay-rail:#b8c8b7;--relay-green:#a8d6b7;--relay-bright:#2c503b;--relay-orange:#f49b78;--relay-parcel:#e9a373;--relay-note:#2f3126;--relay-note-line:#515541;--relay-white:#15251c}}
*{box-sizing:border-box}body{--ink:var(--relay-ink);--paper:var(--relay-paper);--line:var(--relay-line);--accent:var(--relay-orange);margin:0;min-width:280px;min-height:100dvh}button,a,textarea{-webkit-tap-highlight-color:transparent}button,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{cursor:default;opacity:.48}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid var(--relay-orange);outline-offset:4px}h1,h2,h3,p{margin:0}main:focus{outline:none}button{touch-action:manipulation}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;left:18px;top:-70px;padding:13px 20px;background:var(--relay-paper);z-index:100}.skip:focus{top:10px}.loading,.no-script{margin:50px auto;padding:24px;max-width:700px;line-height:1.7}.ui-game-toolbar{background:var(--relay-bg)}.ui-game-toolbar-inner{border-bottom:1px solid var(--relay-line)}.relay-app{max-width:1296px;margin:auto;padding:36px max(48px,env(safe-area-inset-right)) 24px max(48px,env(safe-area-inset-left))}.relay-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:30px}.relay-heading h1{font-size:clamp(32px,4.1vw,56px);font-weight:800;letter-spacing:-2.4px;line-height:1.08}.relay-heading h1>span{color:var(--relay-orange)}.relay-heading>div>p{font-size:15px;color:var(--relay-muted);margin-top:10px}.relay-nav{display:flex;gap:8px;flex-shrink:0}.button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:10px;background:transparent;border:1px solid var(--relay-line);border-radius:12px;color:var(--relay-ink);padding:10px 17px;font-size:14px;font-weight:650;line-height:1.3;transition:background .15s,transform .15s,border-color .15s}.button:hover:not(:disabled){background:var(--relay-bright);border-color:var(--relay-track)}.button:active:not(:disabled){transform:translateY(1px)}.button.primary{background:var(--relay-green);border-color:var(--relay-green);color:var(--relay-white)}.button.primary:hover:not(:disabled){filter:brightness(1.08);background:var(--relay-green)}.daily-button{background:var(--relay-bright);border-color:transparent}.help-button{width:44px;padding:0;border-radius:50%;font-size:20px}.text-button{min-height:44px;display:inline-flex;align-items:center;gap:8px;border:0;background:none;color:var(--relay-muted);font-size:13px;font-weight:600;padding:8px 0;cursor:pointer}.text-button:hover{color:var(--relay-ink);text-decoration:underline}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:32px;align-items:start}.play-panel{min-width:0;background:var(--relay-paper);border:1px solid var(--relay-line);border-radius:24px;padding:28px 32px 12px;box-shadow:0 8px 24px #16372104}.board-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:20px}.route-group{font-size:12px;font-weight:650;letter-spacing:.5px;color:var(--relay-muted);margin-bottom:5px}.board-heading h2{font-size:23px;line-height:1.3;letter-spacing:-.6px}.turn-counter{display:flex;flex-direction:column;align-items:center;min-width:65px}.turn-counter strong{font-size:34px;font-variant-numeric:tabular-nums;font-weight:700;line-height:1.1;letter-spacing:-1px}.turn-counter span{font-size:11px;color:var(--relay-muted);margin-top:3px}.route-itinerary{display:flex;gap:10px;align-items:center;font-size:12px;font-weight:650;max-width:400px;margin:0 auto 22px}.itinerary-line{flex:1;min-width:8px;height:1px;background:var(--relay-line)}.itinerary-stop{display:flex;align-items:center;justify-content:center;border:1px solid var(--relay-line);width:25px;height:25px;border-radius:50%;font-variant-numeric:tabular-nums}.itinerary-stop.done{background:var(--relay-green);color:var(--relay-white);border-color:var(--relay-green)}.itinerary-origin{color:var(--relay-orange)}.board{position:relative;max-width:540px;margin:0 auto;isolation:isolate}.board-rows{display:flex;flex-direction:column;gap:5px}.track-row{display:grid;grid-template-columns:minmax(0,1fr) 46px;gap:12px;position:relative;align-items:center}.row-tiles{display:grid;grid-template-columns:repeat(var(--columns),minmax(0,1fr));gap:5px;position:relative;border-radius:12px}.track-cell{position:relative;aspect-ratio:1;background:var(--relay-cell);border:1px solid var(--relay-grid);border-radius:10px;transition:background .15s;min-width:0}.track{width:100%;height:100%;display:block;overflow:visible;transform-origin:50% 50%}.track path{fill:none;stroke-linecap:butt;stroke-linejoin:round}.rail-bed{stroke:var(--relay-track);stroke-width:29}.rail-line{stroke:var(--relay-rail);stroke-width:10}.connected .rail-bed{stroke:var(--relay-green)}.connected .rail-line{stroke:var(--relay-paper)}.track-cell.connected{background:var(--relay-bright)}.rotate-row{border:1px solid var(--relay-line);border-radius:50%;width:46px;height:46px;min-width:44px;min-height:44px;background:var(--relay-paper);color:var(--relay-green);display:grid;place-items:center;font-size:30px;line-height:1;transition:background .15s,transform .15s}.rotate-row span{transform:translateY(-1px)}.rotate-row:hover:not(:disabled){background:var(--relay-green);color:var(--relay-white)}.track-row:has(.rotate-row:hover:not(:disabled)) .track-cell,.track-row:focus-within .track-cell{box-shadow:inset 0 0 0 2px var(--relay-green)}.track-row.hinted .track-cell{box-shadow:inset 0 0 0 2px var(--relay-orange)}.track-row.hinted .rotate-row{border-color:var(--relay-orange);color:var(--relay-orange);background:var(--relay-note)}.turned{animation:quarter-turn .22s ease-out}@keyframes quarter-turn{from{transform:rotate(-90deg)}to{transform:rotate(0)}}.garden-dot{position:absolute;inset:40%;border-radius:50%;background:var(--relay-grid);box-shadow:8px 4px 0 -2px var(--relay-track)}.endpoint,.stop-marker{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:1}.endpoint{width:31px;height:31px;display:grid;place-items:center;border-radius:8px;background:var(--relay-cell);box-shadow:0 0 0 4px var(--relay-cell)}.parcel-box{position:relative;display:block;width:25px;height:24px;background:var(--relay-parcel);border:2px solid #aa5a31;border-radius:5px;box-shadow:0 3px 0 #793b2020}.parcel-box::before{content:'';position:absolute;top:0;left:8px;width:5px;height:10px;background:#ffe9bd}.parcel-box::after{content:'';position:absolute;bottom:4px;left:4px;width:7px;height:3px;border-radius:1px;background:#ffe9bd}.finish-flag{width:21px;height:25px;position:relative;border-left:3px solid var(--relay-green);margin-left:7px}.finish-flag::after{content:'';position:absolute;left:0;top:0;width:18px;height:13px;background:var(--relay-green);clip-path:polygon(0 0,100% 0,78% 50%,100% 100%,0 100%)}.stop-marker{width:29px;height:29px;display:grid;place-items:center;border-radius:50%;background:var(--relay-note);color:var(--relay-ink);border:2px solid var(--relay-orange);font-size:14px;font-weight:750;box-shadow:0 0 0 3px var(--relay-cell)}.stop-marker.collected{background:var(--relay-orange);color:var(--relay-white)}.board-status{min-height:48px;display:flex;align-items:center;justify-content:center;line-height:1.45;text-align:center;font-size:13px;color:var(--relay-muted);padding:12px 0 8px}.board-status.ready{color:var(--relay-green);font-weight:650}.game-actions{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:2px}.dispatch{min-width:180px;min-height:48px}.secondary-actions{display:flex;gap:7px}.secondary-actions .button{padding-inline:12px}.hint-active{border-color:var(--relay-orange)}.board-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px;font-size:11px;color:var(--relay-muted)}.board-bottom .text-button{font-size:12px}.delivery-note{position:relative;background:var(--relay-note);border:1px solid var(--relay-note-line);border-radius:18px;padding:24px;overflow:hidden;margin-top:16px}.delivery-note::after{content:'';display:block;position:absolute;top:0;right:0;border-style:solid;border-width:0 26px 26px 0;border-color:transparent var(--relay-bg) var(--relay-note-line) transparent}.note-header{display:flex;gap:13px;align-items:center;margin-bottom:30px}.note-header>span:last-child{font-size:10px;letter-spacing:1.6px;line-height:1.6;color:var(--relay-muted)}.note-header strong{font-size:11px;color:var(--relay-ink);letter-spacing:.8px}.parcel-emblem{width:43px;height:43px;display:grid;place-items:center;background:var(--relay-note);border:1px solid var(--relay-note-line);border-radius:12px}.delivery-note h2{font-size:26px;line-height:1.25;letter-spacing:-.6px;margin-bottom:12px}.delivery-note>p{font-size:13px;line-height:1.8;color:var(--relay-muted)}.quick-rules{list-style:none;padding:0;margin:24px 0}.quick-rules li{display:flex;gap:12px;align-items:baseline;margin:20px 0}.quick-rules li>span{font-size:10px;font-weight:700;color:var(--relay-orange)}.quick-rules strong{font-size:13px;line-height:1.5}.quick-rules p{font-size:12px;line-height:1.75;color:var(--relay-muted);margin-top:5px}.note-progress{border-top:1px dashed var(--relay-note-line);padding-top:20px;margin-top:20px;font-size:12px;color:var(--relay-muted)}.progress-dots{display:grid;grid-template-columns:repeat(12,1fr);gap:5px;margin:12px 0}.progress-dots i{aspect-ratio:1;border-radius:3px;background:var(--relay-note-line)}.progress-dots i.done{background:var(--relay-green)}.personal-best{font-size:12px!important;margin-top:12px}.daily-note{border-top:1px dashed var(--relay-note-line);padding-top:14px;font-size:11px!important}.relay-footer{display:flex;align-items:center;gap:22px;margin-top:20px;font-size:12px;color:var(--relay-muted);line-height:1.6}.relay-footer>span{margin-right:auto;max-width:700px}.relay-footer a,.relay-footer button{min-height:44px;display:inline-flex;align-items:center;flex-shrink:0}.toast{position:fixed;z-index:100;bottom:max(24px,env(safe-area-inset-bottom));left:50%;transform:translate(-50%,10px);background:var(--relay-ink);color:var(--relay-paper);padding:13px 20px;border-radius:14px;max-width:min(90vw,540px);width:max-content;font-size:14px;line-height:1.5;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}.toast.visible{opacity:1;transform:translate(-50%,0)}dialog{width:min(560px,calc(100vw - 32px));max-height:85dvh;padding:30px;border-radius:22px;border:1px solid var(--relay-line);background:var(--relay-paper);color:var(--relay-ink);box-shadow:0 24px 80px #0003}dialog::backdrop{background:#10251dcc;backdrop-filter:blur(4px)}dialog h2{font-size:26px;letter-spacing:-.7px;line-height:1.25;padding-right:38px;margin:4px 0 16px}dialog h3{font-size:16px;margin:22px 0 7px}dialog p{font-size:14px;line-height:1.75;color:var(--relay-muted);margin:8px 0 16px}.dialog-close{position:absolute;right:14px;top:14px;width:44px;padding:0;font-size:24px;border:0}.dialog-actions{display:flex;gap:10px;margin-top:22px;justify-content:flex-end}.daily-card{width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:7px;text-align:left;padding:18px;border:1px solid var(--relay-line);border-radius:12px;background:var(--relay-bright);color:var(--relay-ink);margin:18px 0}.daily-card span{font-size:12px;color:var(--relay-muted)}.level-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:7px}.level-button{min-width:0;min-height:54px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border-radius:10px;background:var(--relay-cell);color:var(--relay-ink);border:1px solid var(--relay-line);font-variant-numeric:tabular-nums;font-size:16px;font-weight:650}.level-button span{font-size:10px;color:var(--relay-muted)}.level-button.is-complete{background:var(--relay-bright);border-color:var(--relay-track)}.level-button[aria-current]{outline:2px solid var(--relay-orange);outline-offset:1px}.chapter>p{margin-bottom:12px;font-size:12px}.help-example{display:flex;align-items:center;justify-content:center;gap:18px;background:var(--relay-cell);border-radius:12px;padding:20px 8px;color:var(--relay-green);font-family:monospace;font-size:27px}.help-example b{color:var(--relay-orange)}textarea{display:block;width:100%;resize:vertical;border:1px solid var(--relay-line);border-radius:12px;color:var(--relay-ink);background:var(--relay-bg);padding:14px;font-size:14px;line-height:1.6;margin:14px 0}.travelling-parcel{position:absolute;left:0;top:0;z-index:4;transition:transform 85ms linear;pointer-events:none}.travelling-parcel .parcel-box{transform:translate(-50%,-50%);box-shadow:0 3px 12px #0005}.result-panel{display:grid;grid-template-columns:42px 1fr;gap:10px 14px;padding:18px 0 6px;border-top:1px solid var(--relay-line)}.delivered-stamp{width:40px;height:40px;border:2px solid var(--relay-green);border-radius:50%;display:grid;place-items:center;color:var(--relay-green);font-size:25px}.result-panel h3{font-size:23px;margin:0 0 6px;letter-spacing:-.4px}.result-panel p{font-size:12px;line-height:1.6;color:var(--relay-muted)}.result-actions{grid-column:1/-1;display:flex;gap:9px;margin-top:8px}.result-actions .primary{flex:1}.result-panel>.text-button{grid-column:1/-1;justify-content:center}.result-panel~.board-bottom{display:none}
@media(min-width:1300px){.game-layout{grid-template-columns:minmax(0,760px) 300px;gap:40px;justify-content:space-between}.play-panel{padding:28px 46px 12px}.board{max-width:530px}}
@media(max-width:1000px){.relay-app{padding:28px 32px 20px}.game-layout{grid-template-columns:minmax(0,1fr) 245px;gap:22px}.play-panel{padding:22px 22px 10px}.delivery-note{padding:20px}.delivery-note h2{font-size:23px}.game-actions{flex-wrap:wrap}.dispatch{flex:1}.secondary-actions{flex:1}.secondary-actions .button{flex:1}.relay-heading h1{font-size:40px}}
@media(max-width:760px){.relay-app{padding:22px max(18px,env(safe-area-inset-right)) 18px max(18px,env(safe-area-inset-left))}.relay-heading{align-items:flex-start;flex-direction:column;gap:18px;margin-bottom:20px}.relay-heading h1{font-size:38px;letter-spacing:-1.6px}.relay-heading>div>p{font-size:13px;margin-top:7px}.relay-nav{width:100%;gap:8px}.relay-nav>.button:not(.help-button){flex:1}.game-layout{display:block}.play-panel{padding:22px 22px 10px;border-radius:20px}.delivery-note{margin-top:22px;padding:22px}.note-header{margin-bottom:18px}.quick-rules{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:12px 0}.quick-rules li{margin:8px 0}.note-progress{margin-top:10px}.progress-dots{max-width:230px}.relay-footer{flex-wrap:wrap;gap:4px 20px;margin-top:13px}.relay-footer>span{flex-basis:100%;font-size:11px}.board-heading h2{font-size:22px}.board-status{font-size:12px}.game-actions{gap:9px}.dispatch{flex-basis:100%;min-height:48px}.secondary-actions{flex-basis:100%}.board-bottom{font-size:10px}.board-bottom .text-button{font-size:11px}}
@media(max-width:420px){.relay-heading h1{font-size:34px}.play-panel{padding:17px 13px 7px}.board-heading{margin-bottom:17px}.track-row{grid-template-columns:minmax(0,1fr) 44px;gap:7px}.rotate-row{width:44px;height:44px}.row-tiles,.board-rows{gap:3px}.track-cell{border-radius:7px}.board-status{padding-top:12px}.route-itinerary{margin-bottom:16px;gap:7px}.board-heading h2{font-size:20px}.turn-counter{min-width:60px}.turn-counter strong{font-size:30px}.endpoint{width:23px;height:23px;box-shadow:0 0 0 2px var(--relay-cell)}.endpoint .parcel-box{width:21px;height:21px}.endpoint .parcel-box::before{left:6px;width:4px}.stop-marker{width:23px;height:23px;font-size:11px;border-width:1.5px;box-shadow:0 0 0 2px var(--relay-cell)}.finish-flag{transform:scale(.8)}.quick-rules{display:block}.delivery-note{padding:20px}.level-grid{grid-template-columns:repeat(4,1fr)}dialog{padding:24px 20px}.result-actions{flex-wrap:wrap}.result-actions .button{flex-basis:100%}.result-panel h3{font-size:20px}.help-example{font-size:22px;gap:10px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.entry-port,.exit-port{position:absolute;top:50%;z-index:2;width:9px;height:13px;transform:translateY(-50%);background:var(--relay-orange);clip-path:polygon(0 0,100% 50%,0 100%)}.entry-port{left:-6px}.exit-port{right:-6px;background:var(--relay-green)}
.progress-dots{grid-template-columns:repeat(10,1fr)}
.board-dense .track-cell{min-height:44px;width:100%}
.board-dense .track{position:absolute;inset:0}
.board-dense .track-row{align-items:stretch}
.board-dense .rotate-row{align-self:center}
.route-itinerary[data-stops="4"],.route-itinerary[data-stops="5"]{gap:5px}
.route-itinerary[data-stops="4"] .itinerary-line,.route-itinerary[data-stops="5"] .itinerary-line{min-width:4px}
.route-itinerary .itinerary-stop{flex-shrink:0}
.level-grid{grid-template-columns:repeat(auto-fit,minmax(44px,1fr))}
@media(max-width:420px){
  .board-dense .track-cell{border-radius:5px}
  .board[data-size="8"] .endpoint{width:16px;height:18px;box-shadow:0 0 0 1px var(--relay-cell)}
  .board[data-size="8"] .endpoint .parcel-box{transform:scale(.72)}
  .board[data-size="8"] .finish-flag{transform:scale(.6);margin-left:3px}
  .board[data-size="8"] .stop-marker{width:19px;height:19px;font-size:10px;border-width:1px;box-shadow:0 0 0 1px var(--relay-cell)}
  .route-itinerary[data-stops="4"],.route-itinerary[data-stops="5"]{gap:3px;font-size:11px}
  .route-itinerary[data-stops="4"] .itinerary-stop,.route-itinerary[data-stops="5"] .itinerary-stop{width:22px;height:22px}
  .level-grid{grid-template-columns:repeat(4,minmax(44px,1fr))}
}
/* Keep the loading paragraph's margin inside main and reserve the toolbar border. */
#main{display:flow-root}
.ui-game-toolbar{min-height:calc(var(--ui-toolbar-height) + 1px)}