:root{--ink:#30323a;--muted:#6d7079;--paper:#fffaf8;--line:#eadfe4;--aqua:#55b9c7;--aqua-deep:#278e9d;--aqua-soft:#dff7f8;--green:#46a06d;--green-soft:#e0f5e8;--coral:#d66d86;--coral-soft:#ffe3e8;--amber:#d5a642;--amber-soft:#fdf0d7;--violet:#8178bd;--violet-soft:#ece9f8}
*{box-sizing:border-box}html{background:var(--paper);scroll-behavior:smooth}body{background:radial-gradient(circle at 7% 10%,rgba(206,244,248,.86),transparent 26%),radial-gradient(circle at 94% 15%,rgba(253,240,215,.92),transparent 27%),var(--paper);color:var(--ink);font-family:"Source Sans 3",system-ui,sans-serif;margin:0;min-height:100vh}body.city{background:radial-gradient(circle at 8% 12%,rgba(224,245,232,.9),transparent 27%),radial-gradient(circle at 94% 14%,rgba(236,233,248,.9),transparent 28%),var(--paper)}body.court{background:radial-gradient(circle at 7% 10%,rgba(255,227,232,.85),transparent 25%),radial-gradient(circle at 94% 14%,rgba(253,240,215,.88),transparent 27%),var(--paper)}button,a{font:inherit}button{cursor:pointer}.sr-only{clip:rect(0,0,0,0);clip-path:inset(50%);height:1px;overflow:hidden;position:absolute;white-space:nowrap;width:1px}
.topbar{align-items:center;backdrop-filter:blur(18px);background:rgba(255,250,248,.92);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;padding:11px clamp(16px,4vw,54px);position:sticky;top:0;z-index:30}.brand{align-items:center;color:var(--ink);display:inline-flex;gap:11px;text-decoration:none}.brand-mark{align-items:center;background:linear-gradient(135deg,#30323a,#4a4d59);border-radius:10px;display:inline-flex;flex-shrink:0;gap:3px;height:44px;justify-content:center;position:relative;width:44px}.eye{background:#fff;border-radius:50%;display:inline-block;height:10px;position:relative;width:10px}.eye::after{background:#30323a;border-radius:50%;content:"";height:3px;left:3px;position:absolute;top:3px;width:3px}.lens{border:2px solid #FED3D9;border-radius:50%;display:inline-block;height:11px;margin-left:1px;position:relative;width:11px}.lens::after{background:var(--coral-soft);border-radius:3px;content:"";height:7px;position:absolute;right:-5px;top:6px;transform:rotate(-42deg);width:2px}.brand-copy strong,.brand-copy small{display:block;line-height:1.05;color:var(--muted);font-size:11px;font-weight:400;margin-top:1px}.brand-copy strong{font-family:Nunito,sans-serif;font-size:18px;font-weight:700;letter-spacing:0;color:var(--ink)}.brand-copy small{color:var(--muted);font-size:11px;margin-top:4px}.back{border:1px solid var(--line);border-radius:10px;color:var(--muted);font-weight:700;padding:8px 13px;text-decoration:none}.back:hover{background:#fff;color:var(--ink)}
main{margin:auto;max-width:1180px;padding:25px clamp(12px,3vw,30px) 64px}.hero{margin:0 auto 17px;max-width:920px;text-align:center}.eyebrow{color:var(--aqua-deep);font:900 12px Nunito,sans-serif;letter-spacing:.11em;text-transform:uppercase}.city .eyebrow{color:#2e8152}.court .eyebrow{color:#a64b61}h1{font:900 clamp(28px,5vw,44px)/1.08 Nunito,sans-serif;margin:8px 0}h1 em{color:var(--coral);font-style:normal}.hero p{color:var(--muted);font-size:17px;line-height:1.5;margin:0}.pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:11px}.pill{background:#ffffffcc;border:1px solid var(--line);border-radius:999px;color:#5e6068;font-size:13px;font-weight:700;padding:6px 11px}
.game-shell{background:#ffffffed;border:1px solid var(--line);border-radius:25px;box-shadow:0 22px 58px rgba(58,57,74,.12);min-height:650px;overflow:hidden;position:relative}.game-shell:fullscreen{background:var(--paper);overflow:auto}.toolbar{align-items:center;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding:12px 16px}.stats,.tools{display:flex;flex-wrap:wrap;gap:7px}.stat{background:#fff;border:1px solid var(--line);border-radius:11px;color:var(--muted);display:grid;font-size:10px;line-height:1;min-width:86px;padding:7px 10px;text-transform:uppercase}.stat strong{color:var(--ink);font:900 16px Nunito,sans-serif;margin-top:5px;text-transform:none}.tool{background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--ink);font-weight:800;min-height:40px;padding:8px 12px}.tool:hover{border-color:var(--aqua)}.progress{background:#f0e9ec;height:7px}.progress i{background:linear-gradient(90deg,var(--aqua),var(--green));display:block;height:100%;transition:width .35s;width:0}.court .progress i{background:linear-gradient(90deg,var(--coral),var(--violet))}
.phase-track{display:grid;grid-template-columns:repeat(3,1fr);margin:13px 18px 0}.phase-step{align-items:center;color:#9a9296;display:flex;font-size:12px;font-weight:800;gap:7px;justify-content:center;padding:7px}.phase-step b{align-items:center;background:#f4eef0;border:1px solid var(--line);border-radius:50%;display:flex;height:26px;justify-content:center;width:26px}.phase-step.active{color:#26727d}.phase-step.active b{background:var(--aqua-soft);border-color:#a9dde3}.phase-step.done{color:#2e8152}.phase-step.done b{background:var(--green-soft);border-color:#afd8be}.court .phase-step.active{color:#99445a}.court .phase-step.active b{background:var(--coral-soft);border-color:#efbac5}
.play{display:grid;gap:13px;padding:13px clamp(12px,3vw,24px) 25px}.mission{align-items:center;background:linear-gradient(135deg,var(--violet-soft),#fff);border:1px solid #ded8ef;border-radius:17px;display:flex;gap:13px;padding:12px 15px}.city .mission{background:linear-gradient(135deg,var(--green-soft),#fff);border-color:#c8e6d2}.court .mission{background:linear-gradient(135deg,var(--coral-soft),#fff);border-color:#efc5cd}.mission-icon{align-items:center;background:#fff;border:1px solid #ded8ef;border-radius:13px;display:flex;font-size:24px;height:48px;justify-content:center;min-width:48px}.mission small,.mission strong{display:block}.mission small{color:var(--violet);font:900 10px Nunito,sans-serif;letter-spacing:.1em;text-transform:uppercase}.city .mission small{color:var(--green)}.court .mission small{color:var(--coral)}.mission strong{font:900 clamp(16px,2.5vw,20px)/1.25 Nunito,sans-serif;margin-top:3px}.workbench{display:grid;gap:14px;grid-template-columns:minmax(0,1.35fr) minmax(290px,.65fr)}
.board{background:linear-gradient(180deg,#edf9fb,#fbfdfd);border:1px solid #cfe8ec;border-radius:20px;min-height:390px;overflow:hidden;padding:48px 18px 18px;position:relative}.city .board{background:linear-gradient(180deg,#edf8f1,#fbfdfc);border-color:#cce5d5}.court .board{background:linear-gradient(180deg,#fff1f4,#fffaf8);border-color:#efcbd2}.board::before{background-image:linear-gradient(#dcecef 1px,transparent 1px),linear-gradient(90deg,#dcecef 1px,transparent 1px);background-size:28px 28px;content:"";inset:0;opacity:.72;position:absolute}.board>*{position:relative;z-index:1}.board-tag{background:#ffffffdf;border:1px solid #d5e7e9;border-radius:999px;color:#4f7278;font-size:12px;font-weight:800;left:12px;padding:5px 10px;position:absolute;top:10px;z-index:2}.target-number{align-items:center;background:#fff;border:2px solid var(--aqua);border-radius:18px;box-shadow:0 10px 30px rgba(39,142,157,.12);display:flex;flex-direction:column;height:105px;justify-content:center;margin:0 auto 18px;width:150px}.target-number small{color:var(--muted);font-size:12px;font-weight:800;text-transform:uppercase}.target-number strong{font:900 44px Nunito,sans-serif;line-height:1}.array-wrap{align-items:center;display:flex;justify-content:center;min-height:205px}.array-model{align-items:center;display:flex;gap:18px;justify-content:center}.area-plan-wrap{align-items:center;display:flex;gap:24px;justify-content:center;min-height:205px}.dimension-frame{align-items:center;display:grid;grid-template-columns:auto auto;grid-template-rows:auto auto;justify-items:center}.edge-label{background:var(--ink);border-radius:999px;color:#fff;font:900 14px Nunito,sans-serif;padding:5px 10px}.edge-label.invalid-edge{background:#a64b61}.edge-top{grid-column:2;grid-row:1;margin-bottom:7px}.edge-side{grid-column:1;grid-row:2;margin-right:7px}.area-rectangle{align-items:center;background:linear-gradient(135deg,#b9e8d0,#74c99d);border:3px solid #32835b;border-radius:10px;box-shadow:inset 0 0 0 5px rgba(255,255,255,.32),0 8px 18px rgba(46,129,82,.14);display:flex;flex-direction:column;grid-column:2;grid-row:2;justify-content:center;max-width:300px}.area-rectangle strong{color:#185d3a;font:900 clamp(16px,3vw,25px) Nunito,sans-serif}.area-rectangle small{color:#246e43;font-weight:800}.area-rectangle.incomplete-area{background:linear-gradient(135deg,#fce9be,#f4c768);border-color:#b88420}.area-remainder{align-items:center;background:var(--coral-soft);border:2px dashed var(--coral);border-radius:14px;color:#99445a;display:flex;flex-direction:column;justify-content:center;min-height:88px;min-width:105px;padding:12px}.area-remainder strong{font:900 22px Nunito,sans-serif}.area-remainder span{font-size:13px;font-weight:800}.dot-array{--unit-size:21px;background:#ffffffad;border:2px solid #9ed8df;border-radius:14px;display:grid;gap:6px;grid-template-columns:repeat(var(--array-cols),var(--unit-size));justify-content:center;max-width:100%;padding:10px}.dot-array.wide-array{--unit-size:14px;gap:4px;padding:8px}.dot-array.incomplete-base{border-color:var(--amber)}.unit-dot{background:var(--aqua);border:2px solid #fff;border-radius:7px;box-shadow:0 2px 5px rgba(48,50,58,.13);height:var(--unit-size);width:var(--unit-size)}.unit-dot.leftover{background:var(--coral);transform:rotate(7deg)}.leftover-zone{align-items:center;background:var(--coral-soft);border:2px dashed var(--coral);border-radius:14px;display:flex;flex-direction:column;gap:8px;justify-content:center;min-height:82px;min-width:92px;padding:10px}.leftover-zone strong{color:#99445a;font:900 12px Nunito,sans-serif;text-transform:uppercase}.leftover-dots{display:flex;flex-wrap:wrap;gap:5px;justify-content:center;max-width:70px}.array-caption{background:#fff;border:1px solid var(--line);border-radius:999px;font-weight:900;margin:12px auto 0;max-width:max-content;padding:7px 12px;text-align:center}.evidence-strip{display:flex;flex-wrap:wrap;gap:7px;justify-content:center;margin-top:12px}.evidence-chip{background:#fff;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-weight:800;padding:6px 10px}.evidence-chip.found{background:var(--green-soft);border-color:#afd8be;color:#246e43}
.controls{background:#fff;border:1px solid var(--line);border-radius:18px;display:flex;flex-direction:column;min-height:390px;padding:16px}.controls h2{font:900 18px/1.3 Nunito,sans-serif;margin:0 0 6px}.controls>p{color:var(--muted);font-size:14px;line-height:1.45;margin:0 0 14px}.choice-list,.number-buttons{display:grid;gap:9px}.choice{background:#f9f7f8;border:2px solid transparent;border-radius:11px;color:var(--ink);font-weight:800;min-height:48px;padding:10px 12px;text-align:left}.choice:hover,.number-button:hover{background:var(--aqua-soft)}.choice.selected{background:var(--aqua-soft);border-color:var(--aqua);color:#246c76}.choice.correct,.number-button.discovered{background:var(--green-soft);border-color:var(--green);color:#246e43}.choice.wrong{background:var(--coral-soft);border-color:var(--coral);color:#99445a}.choice:disabled{cursor:default}.number-buttons{grid-template-columns:repeat(4,1fr)}.number-button{background:#f9f7f8;border:2px solid transparent;border-radius:11px;font:900 17px Nunito,sans-serif;min-height:46px}.number-button.active{background:var(--aqua-soft);border-color:var(--aqua)}.check{background:var(--coral);border:0;border-radius:12px;color:white;font-weight:900;margin-top:12px;min-height:47px;width:100%}.city .check{background:var(--green)}.court .check{background:var(--violet)}.check:disabled{cursor:not-allowed;opacity:.5}.case-note{background:var(--amber-soft);border:1px solid #ead39e;border-radius:12px;color:#76591f;font-size:13px;line-height:1.45;margin-top:auto;padding:11px}.case-note strong{display:block;font:900 12px Nunito,sans-serif;margin-bottom:2px;text-transform:uppercase}
.stone-options{display:grid;gap:10px}.stone-model{background:#ffffffd9;border:1px solid #cfe8ec;border-radius:13px;margin:auto;max-width:100%;padding:13px 16px}.stone-model>strong{color:#4f7278;display:block;font:900 12px Nunito,sans-serif;margin-bottom:8px;text-align:center}.stone-layout{align-items:center;display:flex;gap:10px;justify-content:center}.stone-grid{--stone-size:22px;display:grid;gap:5px;justify-content:center}.stone-grid.wide{--stone-size:10px;gap:2px}.stone{background:linear-gradient(135deg,#8178bd,#5f579c);border:2px solid #fff;border-radius:50%;box-shadow:0 2px 4px rgba(48,50,58,.2);height:var(--stone-size);width:var(--stone-size)}.stone-outside{align-items:center;color:#99445a;display:flex;flex-direction:column;font-size:10px;font-weight:800;gap:3px}.stone-outside .stone{--stone-size:20px;background:var(--coral);transform:rotate(8deg)}.stone-tray{--stone-size:21px;align-content:center;background:#ffffffc7;border:2px dashed #b8b0dc;border-radius:18px;display:flex;flex-wrap:wrap;gap:3px 7px;justify-content:center;margin:0 auto;max-width:280px;min-height:155px;padding:17px 20px;transform:rotate(-1deg)}.stone-tray .stone:nth-child(3n){transform:translateY(7px) rotate(12deg)}.stone-tray .stone:nth-child(4n){transform:translate(-5px,-4px) rotate(-9deg)}.stone-tray .stone:nth-child(5n){transform:translate(4px,3px) scale(.92)}.stone-tray .stone:nth-child(7n){transform:translate(-2px,8px) scale(1.08)}.arrangement-buttons{grid-template-columns:repeat(3,1fr)}
.garden-result{align-items:center;background:var(--green-soft);border:2px solid #afd8be;border-radius:18px;display:flex;flex-direction:column;gap:7px;justify-content:center;margin:0 auto;min-height:145px;padding:18px;text-align:center}.garden-result span{color:#246e43;font-weight:800}.garden-result b{font:900 clamp(24px,4vw,34px) Nunito,sans-serif}.garden-result em{color:#246e43;font-style:normal;font-weight:800}.garden-result.empty{background:#ffffffc7;border-color:#cfe8ec}.garden-result.empty span{color:var(--muted);font-size:14px}.garden-result.invalid{background:var(--coral-soft);border-color:#efbac5}.garden-result.invalid span,.garden-result.invalid em{color:#99445a}.garden-buttons{grid-template-columns:repeat(3,1fr)}
.bottom{align-items:center;display:flex;gap:12px}.feedback{align-items:center;background:#f7f4f5;border:1px solid var(--line);border-radius:13px;color:var(--muted);display:flex;flex:1;gap:10px;min-height:58px;padding:10px 13px}.feedback.good{background:var(--green-soft);border-color:#afd8be;color:#246e43}.feedback.bad{background:var(--coral-soft);border-color:#efbac5;color:#99445a}.feedback b{align-items:center;background:#fff;border-radius:50%;display:flex;flex:0 0 30px;height:30px;justify-content:center}.next{background:var(--green);border:0;border-radius:11px;color:#fff;display:none;font-weight:900;min-height:48px;padding:9px 17px}.next.show{display:block}
.layer{align-items:center;background:rgba(255,250,248,.97);display:none;inset:0;justify-content:center;padding:20px;position:absolute;text-align:center;z-index:15}.layer.show{display:flex}.modal{max-width:640px}.modal-icon{align-items:center;background:var(--aqua-soft);border:1px solid #b6e3e8;border-radius:22px;display:flex;font-size:38px;height:78px;justify-content:center;margin:0 auto 15px;width:78px}.city .modal-icon{background:var(--green-soft);border-color:#b9dec6}.court .modal-icon{background:var(--coral-soft);border-color:#efbac5}.modal h2{font:900 clamp(25px,4vw,35px)/1.15 Nunito,sans-serif;margin:0 0 10px}.modal p{color:var(--muted);font-size:16px;line-height:1.55;margin:0 auto 17px}.steps{display:grid;gap:7px;margin:0 auto 18px;max-width:560px;text-align:left}.step{align-items:center;background:#fff;border:1px solid var(--line);border-radius:11px;display:flex;gap:10px;padding:9px 11px}.step b{align-items:center;background:var(--violet-soft);border-radius:50%;color:var(--violet);display:flex;flex:0 0 27px;height:27px;justify-content:center}.start{background:var(--coral);border:0;border-radius:12px;color:#fff;font-weight:900;min-height:47px;padding:10px 18px}.city .start{background:var(--green)}.court .start{background:var(--violet)}.summary{display:grid;gap:8px;grid-template-columns:repeat(3,1fr);margin:17px 0}.summary span{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 6px}.summary strong{display:block;font:900 18px Nunito,sans-serif}
.number-line{display:grid;grid-template-columns:repeat(13,1fr);margin:72px 2px 0;position:relative}.number-line::before{background:var(--ink);content:"";height:4px;left:2%;position:absolute;right:2%;top:30px}.line-stop{align-items:center;background:transparent;border:0;display:flex;flex-direction:column;font-weight:800;gap:6px;min-width:0;padding:0;position:relative}.line-stop::before{background:#fff;border:3px solid #8f939c;border-radius:50%;content:"";height:18px;margin-top:21px;transition:transform .18s,background .18s,border-color .18s;width:18px;z-index:1}.line-stop.pending:hover::before,.line-stop.pending:focus-visible::before{border-color:var(--aqua);box-shadow:0 0 0 5px var(--aqua-soft);transform:scale(1.12)}.line-stop.revealed::before{transform:scale(1.12)}.line-stop.route-a::before{background:var(--aqua-soft);border-color:var(--aqua)}.line-stop.route-b::before{box-shadow:0 0 0 5px var(--amber-soft);border-color:var(--amber)}.line-stop.both::before{background:var(--green);border-color:#fff;box-shadow:0 0 0 4px var(--green)}.line-stop small{font-size:11px}.route-legend{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:38px}.route-legend span{background:#fff;border:1px solid var(--line);border-radius:999px;font-weight:800;padding:7px 10px}.route-card{background:#fff;border:1px solid var(--line);border-radius:16px;margin:0 auto 14px;max-width:520px;padding:15px;text-align:center}.route-card strong{display:block;font:900 24px Nunito,sans-serif}.route-card span{color:var(--muted);display:block}.route-card small{color:#2e8152;display:block;font-weight:900;margin-top:7px}
.docket{display:grid;gap:13px;place-items:center}.case-number{background:var(--violet);border-radius:999px;color:#fff;font:900 12px Nunito,sans-serif;letter-spacing:.08em;padding:6px 11px;text-transform:uppercase}.claim{background:#fff;border:2px solid var(--coral);border-radius:18px;box-shadow:0 12px 30px rgba(214,109,134,.12);font:900 clamp(20px,3.3vw,30px)/1.3 Nunito,sans-serif;max-width:680px;padding:23px;text-align:center}.evidence-model{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.evidence-model span{background:#fff;border:1px solid var(--line);border-radius:11px;font-weight:800;padding:8px 11px}.verdict-row{display:grid;gap:9px;grid-template-columns:1fr 1fr}.verdict{border:2px solid transparent;border-radius:12px;font-weight:900;min-height:52px}.verdict.true{background:var(--green-soft);color:#246e43}.verdict.false{background:var(--coral-soft);color:#99445a}.verdict.selected{border-color:var(--ink)}
.series-nav{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:17px auto 0}.series-nav a{background:#fff;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px;font-weight:800;padding:7px 11px;text-decoration:none}.series-nav a[aria-current="page"]{background:var(--ink);color:#fff}footer{align-items:center;border-top:1px solid #eadfe4;color:#6d7079;display:flex;flex-wrap:wrap;font-size:13px;gap:14px 22px;justify-content:center;padding:17px}footer a{color:inherit;text-decoration:none}footer a:hover{color:var(--ink)}
.choice-lock{align-items:center;background:#f3f6f5;border:2px dashed #c8d6d1;border-radius:13px;color:var(--muted);display:flex;flex-direction:column;gap:4px;justify-content:center;min-height:174px;padding:20px;text-align:center}.choice-lock b{font-size:25px}.choice-lock strong{color:var(--ink);font:900 16px Nunito,sans-serif}.choice-lock span{font-size:13px;line-height:1.4}.number-line.compact{margin-top:34px}
.line-stop.both::before{background:#dfff00;border-color:#317744;box-shadow:0 0 0 5px rgba(223,255,0,.32),0 0 20px 7px rgba(137,255,44,.75)}.line-stop.both.new-common::before{animation:common-glow .58s ease-out 2}.line-stop.both small{color:#34723f;font-weight:900}.route-legend .route-active{border-color:var(--ink);box-shadow:0 0 0 3px rgba(48,50,58,.1);color:var(--ink)}
@keyframes common-glow{0%{filter:brightness(1);transform:scale(1.1)}55%{filter:brightness(1.2);transform:scale(1.55)}100%{filter:brightness(1);transform:scale(1.12)}}
@media(prefers-reduced-motion:reduce){.line-stop.both.new-common::before{animation:none}}
@media(max-width:900px){.workbench{grid-template-columns:1fr}.controls{min-height:0}.board{min-height:350px}}
@media(max-width:680px){.number-line{grid-template-columns:repeat(7,1fr)!important;margin-top:20px}.number-line::before{display:none}.line-stop::before{margin-top:0}.line-stop:nth-child(n+8){margin-top:18px}.route-legend{margin-top:22px}.summary{grid-template-columns:1fr}.dot-array{gap:4px}.unit-dot{height:18px;width:18px}}
@media(max-width:540px){.brand-copy small{display:none}.back{font-size:12px;padding:7px 9px}main{padding:19px 8px 44px}.hero p{font-size:15px}.game-shell{border-radius:17px}.toolbar{padding:9px}.stat{min-width:70px;padding:6px 8px}.stat strong{font-size:14px}.phase-track{margin:10px 5px 0}.phase-step{font-size:10px;gap:4px}.phase-step b{height:23px;width:23px}.play{padding:10px 7px 16px}.mission{padding:10px}.mission-icon{height:43px;min-width:43px}.controls{padding:13px}.bottom{align-items:stretch;flex-direction:column}.next{width:100%}.number-buttons{grid-template-columns:repeat(3,1fr)}.board{padding-left:8px;padding-right:8px}.target-number{height:86px;width:125px}.target-number strong{font-size:36px}.area-plan-wrap{gap:10px}.area-rectangle{max-width:240px}.area-remainder{min-width:84px;padding:8px}.edge-label{font-size:12px;padding:4px 8px}.dot-array{--unit-size:15px}.dot-array.wide-array{--unit-size:10px;gap:2px;padding:6px}}
.area-rectangle{max-width:none}