:root{--bg:#fff6e8;--card:#fff;--ink:#2d2a32;--muted:#6b6470;--line:#e9dcc8;--tomato:#e8553e;--teal:#1f8a84;--sun:#ffc93c;--green:#2f9a4a;--red:#c62828;--radius:16px;color:var(--ink);background:var(--bg);font-family:Nunito,Trebuchet MS,system-ui,sans-serif;line-height:1.4}*{box-sizing:border-box}body{background:radial-gradient(circle at 10% 0%, #ffe3c2 0, transparent 40%), radial-gradient(circle at 100% 100%, #d9f0c4 0, transparent 40%), var(--bg);min-height:100vh;margin:0}h1,h2{margin:0 0 8px;line-height:1.15}h1{font-size:1.8rem}h2{font-size:1.15rem}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}:focus-visible{outline-offset:2px;outline:4px solid #3a86ff}.sr-only{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.small{color:var(--muted);margin:4px 0 8px;font-size:.9rem}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.btn{border:3px solid var(--ink);min-height:48px;box-shadow:0 4px 0 var(--ink);background:#fff;border-radius:14px;padding:10px 18px;font-weight:800;transition:transform 80ms,box-shadow 80ms}.btn:active:not(:disabled){box-shadow:0 1px 0 var(--ink);transform:translateY(3px)}.btn.big{min-height:60px;padding:10px 24px;font-size:1.2rem}.btn.run{background:var(--green);color:#fff}.btn.stop,.btn.danger{background:var(--red);color:#fff}.btn.ghost{box-shadow:none;border-color:var(--line);background:0 0}.page{max-width:1000px;margin:0 auto;padding:16px}.brand{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.brand-button{text-align:left;background:0 0;border:0;align-items:center;gap:10px;font-size:1.4rem;font-weight:900;display:flex}.brand-button small{color:var(--tomato);letter-spacing:.08em;text-transform:uppercase;font-size:.85rem;display:block}.brand nav{gap:8px;display:flex}.card{background:var(--card);border:3px solid var(--line);border-radius:var(--radius);margin-bottom:16px;padding:20px}.hero{background:linear-gradient(135deg,#fff 0%,#fff1dc 100%)}.hero h1{color:var(--tomato);font-size:2.2rem}.nick-form label{margin:16px 0 8px;font-weight:800;display:block}.nick-form input{min-width:200px;min-height:52px;font:inherit;border:3px solid var(--ink);border-radius:14px;flex:1;padding:8px 14px;font-size:1.2rem}.form-error{color:var(--red);font-weight:700}.player-list{flex-wrap:wrap;gap:10px;display:flex}.player-chip{border:3px solid var(--line);background:#fff;border-radius:999px;align-items:center;gap:8px;min-height:56px;padding:6px 14px 6px 8px;font-weight:800;display:flex}.player-chip small{color:var(--muted);font-weight:600}.about{background:#f2f8ea;border-color:#cfe3b8}.volunteer-link{color:var(--muted);background:0 0;border:0;min-height:44px;margin:24px auto 0;text-decoration:underline;display:block}.customize-grid{grid-template-columns:auto 1fr;align-items:center;gap:24px;margin:12px 0 20px;display:grid}.preview{background:#f3e6d2;border-radius:24px;padding:20px}.options{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.option{border:3px solid var(--line);background:#fff;border-radius:12px;align-items:center;gap:8px;min-height:48px;padding:6px 14px;font-weight:700;display:flex}.option.picked{border-color:var(--ink);background:#fff3c9}.option.picked:after{content:"✓"}.swatch{border:2px solid var(--ink);border-radius:50%;width:22px;height:22px}.map-head{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.map-head div{flex:1}.map-head p{color:var(--muted);margin:0;font-weight:700}.stages{gap:14px;margin:0;padding:0;list-style:none;display:grid}.stages li:nth-child(2n){padding-left:12%}.stage-card{border:3px solid var(--ink);text-align:left;width:100%;box-shadow:0 5px 0 var(--ink);background:#fff;border-radius:20px;align-items:center;gap:16px;padding:14px 18px;display:flex}.stage-card.next{background:#fff3c9;animation:1.6s ease-in-out infinite pulse}.stage-card.done{background:#e6f5dd}.stage-card.locked{box-shadow:none;border-style:dashed}.stage-badge{border:3px solid var(--ink);background:var(--sun);border-radius:50%;flex:none;place-items:center;width:52px;height:52px;font-size:1.4rem;font-weight:900;display:grid}.stage-card.done .stage-badge{background:var(--green);color:#fff}.stage-text{display:grid}.stage-text small{color:var(--muted);font-weight:700}.stage-text strong{font-size:1.25rem}@keyframes pulse{50%{transform:scale(1.02)}}.leaderboard table{border-collapse:collapse;width:100%}.leaderboard th,.leaderboard td{text-align:left;border-bottom:2px solid var(--line);padding:8px 10px}.leaderboard tr.leader{background:#fff3c9}.leaderboard tr.me{outline-offset:-3px;outline:3px solid #3a86ff}.lb-player{align-items:center;gap:8px;font-weight:800;display:flex}.tag{background:var(--ink);color:#fff;border-radius:999px;padding:2px 8px;font-size:.75rem}.rank,.score{font-weight:900}.volunteer .row{margin:16px 0}.confirm{border:3px solid var(--red);border-radius:12px;flex-wrap:wrap;align-items:center;gap:8px;width:100%;padding:12px;display:flex}.confirm p{width:100%;margin:0 0 4px;font-weight:700}.game{max-width:1280px;margin:0 auto;padding:12px 16px 24px}.game-top{align-items:center;gap:16px;display:flex}.game-title{flex:1}.game-title h1{margin:0}.stage-num{color:var(--tomato);text-transform:uppercase;letter-spacing:.08em;font-size:.85rem;font-weight:800}.best-pill{border:3px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;font-weight:800}.goal{border:3px solid var(--sun);background:#fff3c9;border-radius:14px;margin:10px 0 14px;padding:12px 16px;font-size:1.15rem}.game-main{grid-template-columns:minmax(0,1.1fr) minmax(340px,1fr);align-items:start;gap:20px;display:grid}.board-wrap{position:sticky;top:12px}.note{color:var(--muted);margin:10px 0 0;font-size:.95rem}.board{border:5px solid var(--ink);border-radius:18px;margin:0 auto;display:grid;position:relative;overflow:hidden;box-shadow:0 8px #2d2a3240}.tile{border:1px dashed #2d2a3226;position:relative}.tile.spot{box-shadow:inset 0 0 0 4px #ffc93ce6}.tile-art{width:100%;height:100%;position:absolute;inset:0}.tile-label{border:2px solid var(--ink);white-space:nowrap;background:#ffffffeb;border-radius:8px;padding:0 6px;font-size:clamp(.6rem,1.3vw,.85rem);font-weight:800;position:absolute;bottom:4px;left:50%;transform:translate(-50%)}.robot{z-index:2;pointer-events:none;transition:left .45s ease-in-out,top .45s ease-in-out;position:absolute}.robot-shake,.robot-body{width:100%;height:100%}.robot-body{padding:6%;transition:transform .35s ease-in-out}.robot-body svg{filter:drop-shadow(0 4px 2px #00000040);width:100%;height:100%}.robot-shake.bump{animation:.4s shake}@keyframes shake{20%,60%{transform:translate(-8%)}40%,80%{transform:translate(8%)}}.carry-bubble{border:2px solid var(--ink);background:#fff;border-radius:999px;padding:2px;display:flex;position:absolute;top:-8%;right:-8%}.carry-bubble svg{width:clamp(18px,3vw,30px);height:clamp(18px,3vw,30px)}.valve-wheel{transition:transform .6s ease-out}.valve-wheel.on{transform:rotate(180deg)}.grow{transform-box:fill-box;transform-origin:bottom;animation:.6s ease-out grow}@keyframes grow{0%{transform:scale(.4)}}.panel{background:var(--card);border:3px solid var(--line);border-radius:var(--radius);flex-direction:column;min-height:480px;max-height:calc(100vh - 150px);padding:14px 16px;display:flex}.panel h2{justify-content:space-between;align-items:baseline;margin:10px 0 6px;display:flex}.count{color:var(--muted);font-size:.95rem}.checklist{gap:2px;font-weight:700;display:grid}.check{align-items:center;gap:8px;display:flex}.check .box{border:3px solid var(--ink);background:#fff;border-radius:8px;place-items:center;width:24px;height:24px;font-weight:900;display:grid}.check.done{color:var(--green)}.check.done .box{background:var(--green);border-color:var(--green);color:#fff}.carrying{color:var(--muted);flex-wrap:wrap;align-items:center;gap:6px;margin-top:6px;display:flex}.carry-item{color:var(--ink);align-items:center;gap:4px;display:inline-flex}.palette{grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:10px;display:grid}.block-btn{border:3px solid var(--ink);color:#fff;min-height:66px;box-shadow:0 4px 0 var(--ink);border-radius:16px;flex-direction:column;align-items:center;gap:2px;padding:6px;font-size:1rem;font-weight:900;display:flex}.block-btn:active:not(:disabled){box-shadow:0 1px 0 var(--ink);transform:translateY(3px)}.block-btn .cmd-icon{width:28px;height:28px}.cmd-forward{background:#3a86ff}.cmd-left{background:#9b5de5}.cmd-right{background:#d9480f}.cmd-action{background:#2f9a4a}.cmd-repeat{background:#1f8a84}.program{border:3px dashed var(--line);background:#faf4ea;border-radius:14px;flex-wrap:wrap;flex:auto;align-content:flex-start;gap:8px;min-height:64px;margin:0;padding:10px;list-style:none;display:flex;overflow-y:auto}.program .empty{color:var(--muted);align-self:center}.chip{border:3px solid var(--ink);background:#fff;border-radius:12px;align-items:center;gap:4px;min-height:44px;padding:4px 10px 4px 6px;font-size:.95rem;font-weight:800;display:inline-flex}.chip .cmd-icon{width:22px;height:22px}.chip:disabled{opacity:1;cursor:default}.chip .num{background:var(--ink);color:#fff;border-radius:8px;place-items:center;min-width:24px;height:24px;font-size:.8rem;display:grid}.chip.selected{background:#dbe9ff;outline:3px solid #3a86ff}.chip.active{background:var(--sun);transform:scale(1.1)}.chip.failed{border-color:var(--red);background:#ffd6d6;border-style:dashed}.chip.failed:after{content:"⚠";color:var(--red)}.loop{border:3px solid var(--teal);background:#dff3f1;border-radius:14px;flex-wrap:wrap;align-items:center;gap:6px;padding:6px;display:flex}.loop.open{border-style:dashed;box-shadow:0 0 0 4px #1f8a8440}.loop-body{border-left:4px solid var(--teal);flex-wrap:wrap;align-items:center;gap:6px;padding-left:8px;display:flex}.loop-empty{color:var(--teal);font-size:.9rem;font-weight:700}.small-btn{min-height:40px;padding:4px 12px}.edit-bar{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.status{border-radius:12px;min-height:48px;margin:10px 0;padding:10px 14px;font-weight:800}.status.hint{color:#2b4c8c;background:#eef4ff}.status.info{background:#fff3c9}.status.good{color:#1f6b33;background:#e6f5dd}.status.error{color:#8e1c10;background:#ffe1dc}.controls{flex-wrap:wrap;gap:10px;display:flex}.controls .run,.controls .stop{flex:1}.modal-backdrop{z-index:10;background:#2d2a328c;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.modal{border:4px solid var(--ink);text-align:center;background:#fff;border-radius:24px;width:min(520px,100%);max-height:100%;padding:24px;animation:.35s ease-out pop;overflow-y:auto}.stars{color:var(--sun);-webkit-text-stroke:2px var(--ink);letter-spacing:.15em;font-size:2.6rem}.done-list{color:var(--green);margin:0 0 12px;padding:0;font-weight:800;list-style:none}.stat-row{justify-content:center;gap:12px;display:flex}.stat-row div{background:#faf4ea;border-radius:14px;padding:10px 18px;display:grid}.stat-row span{color:var(--muted);font-size:.9rem;font-weight:700}.stat-row b{font-size:2rem}.celebrate{color:var(--tomato);font-size:1.1rem;font-weight:800}.lesson{text-align:left;background:#eef4ff;border-radius:12px;padding:12px}.modal-buttons{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}@keyframes pop{0%{opacity:0;transform:scale(.85)}}@media (width<=860px){.game-main{grid-template-columns:1fr}.board-wrap{position:static}.panel{min-height:0;max-height:none}.board{max-width:560px}.customize-grid{grid-template-columns:1fr;justify-items:center}.stages li:nth-child(2n){padding-left:0}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}