:root{--sm-grid:#c5cae9;--sm-grid-bg:#f5f7ff;--sm-shape:#5c6bc0;--sm-shape-stroke:#3949ab;--sm-ghost:#5c6bc040;--sm-ghost-stroke:#3949ab8c;--sm-guide:#ff6d00;--sm-accent:#00c853;--sm-panel:#fff;--sm-panel-border:#e0e0e0;--sm-sidebar-w:320px;--sm-text:#263238;--sm-text-muted:#607d8b;--sm-btn-bg:#eceff1;--sm-btn-hover:#cfd8dc;--sm-btn-active:#b0bec5;--sm-radius:18px;--sm-danger:#d32f2f;--sm-star:#f9a825;--sm-ok-fg:#2e7d32;--sm-warn-fg:#b33d00;--sk-accent:var(--sm-shape-stroke)}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{background:var(--sm-grid-bg);color:var(--sm-text);-webkit-tap-highlight-color:transparent;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,sans-serif;overflow:hidden}.screen{display:none}.screen.active{display:flex}.screen [tabindex="-1"]:focus{outline:none}@keyframes fadeUp{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}@keyframes popIn{0%{opacity:0;transform:scale(.88)}to{opacity:1;transform:scale(1)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.intro-screen{text-align:center;background:radial-gradient(circle at 20% 30%, #5c6bc014 0, transparent 40%), radial-gradient(circle at 80% 70%, #00c8530f 0, transparent 35%), var(--sm-grid-bg)}.intro-art{color:var(--sm-shape);margin-bottom:12px;font-size:80px;line-height:1;animation:2.4s ease-in-out infinite float}.intro-screen h1{letter-spacing:-.02em;margin-bottom:6px;font-size:32px;font-weight:800}.intro-sub{color:var(--sm-text-muted);margin-bottom:20px;font-size:15px;line-height:1.7}.intro-tag{background:var(--sm-shape-stroke);color:#fff;letter-spacing:.05em;border-radius:99px;margin-bottom:18px;padding:5px 14px;font-size:14px;font-weight:700;display:inline-block}.intro-card{background:var(--sm-panel);border:2px dashed var(--sm-shape);border-radius:var(--sm-radius);width:100%;max-width:440px;margin-bottom:24px;padding:20px 24px;box-shadow:0 8px 32px #0000000f}.intro-card h3{color:var(--sm-shape-stroke);margin-bottom:10px;font-size:17px;font-weight:700}.intro-card p{color:var(--sm-text-muted);font-size:15px;line-height:1.7}.intro-previews{justify-content:center;gap:28px;margin-bottom:24px;display:flex}.intro-preview{text-align:center;color:var(--sm-text-muted);font-size:14px;font-weight:600}.intro-preview .icon{background:var(--sm-btn-bg);width:60px;height:60px;color:var(--sm-shape-stroke);border-radius:16px;justify-content:center;align-items:center;margin-bottom:6px;font-size:28px;display:flex}.big-btn{min-height:52px;padding:0 32px;font-size:17px}.explore-screen{width:100vw;height:100dvh}.explore-layout{grid-template-columns:1fr var(--sm-sidebar-w);width:100%;height:100%;display:grid}.canvas-zone{padding:calc(var(--sk-stage-top) + 44px) 12px 12px;background-color:var(--sm-grid-bg);background-image:radial-gradient(var(--sm-grid) 1.5px, transparent 1.5px), radial-gradient(var(--sm-grid) 1.5px, transparent 1.5px);background-position:0 0,12px 12px;background-size:24px 24px;justify-content:center;align-items:center;min-width:0;display:flex;position:relative;overflow:hidden}.canvas-zone svg.grid-svg{width:100%;max-width:860px;height:100%;max-height:860px}.mission-indicator{top:calc(var(--sk-stage-top) - 4px);z-index:5;backdrop-filter:blur(6px);color:#fff;background:#263238d9;border:1px solid #fff3;border-radius:14px;align-items:center;gap:8px;min-height:36px;padding:6px 14px;font-size:14px;font-weight:600;display:flex;position:absolute;left:12px}.mission-indicator .num{background:var(--sm-shape);border-radius:50%;justify-content:center;align-items:center;min-width:26px;height:26px;font-size:14px;font-weight:700;display:inline-flex}.mission-indicator .stars{color:#ffd54f;font-size:14px}.sidebar{background:var(--sm-panel);border-left:2px solid var(--sm-panel-border);flex-direction:column;display:flex;overflow-y:auto;box-shadow:-4px 0 24px #0000000f}.side-head{background:linear-gradient(135deg, var(--sm-shape) 0%, #3949ab 100%);color:#fff;flex-shrink:0;padding:16px 20px 14px;position:relative;overflow:hidden}.side-head:after{content:"";background:radial-gradient(circle at 80% -20%,#ffffff26 0,#0000 55%);position:absolute;inset:0}.side-head h2{z-index:1;align-items:center;gap:8px;font-size:20px;font-weight:700;display:flex;position:relative}.side-head .side-sub{opacity:.9;z-index:1;margin-top:2px;font-size:14px;position:relative}.side-body{flex:1;padding:14px 16px 20px}.shape-select{grid-template-columns:1fr 1fr;gap:6px;margin-bottom:14px;display:grid}.shape-opt{border:2px solid var(--sm-panel-border);background:var(--sm-btn-bg);text-align:center;cursor:pointer;min-height:44px;color:var(--sm-text-muted);word-break:keep-all;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:6px 8px;font-family:inherit;font-size:14px;font-weight:700;transition:all .15s;display:flex}.shape-opt:disabled{cursor:not-allowed;opacity:.55}.shape-opt svg{flex-shrink:0;width:24px;height:24px}.shape-opt.active{border-color:var(--sm-shape);color:var(--sm-shape-stroke);background:#5c6bc01a}.ctrl-group{margin-bottom:14px}.ctrl-group-title{color:var(--sm-text-muted);margin-bottom:6px;font-size:14px;font-weight:700}.dpad{grid-template-rows:52px 52px 52px;grid-template-columns:52px 52px 52px;justify-content:center;gap:4px;margin-bottom:6px;display:grid}.dpad-btn{border:1px solid var(--sm-panel-border);background:var(--sm-btn-bg);cursor:pointer;width:52px;height:52px;color:var(--sm-text);border-radius:12px;justify-content:center;align-items:center;font-family:inherit;font-size:22px;font-weight:700;transition:all .1s;display:flex}.dpad-btn:hover{background:var(--sm-btn-hover)}.dpad-btn:disabled,.tf-btn:disabled{opacity:.45;cursor:not-allowed}.dpad-btn:active{background:var(--sm-btn-active);transform:scale(.92)}.dpad-center{color:var(--sm-text-muted);cursor:default;font-size:14px;font-weight:700;background:0 0!important;border:none!important}.transform-btns{grid-template-columns:1fr 1fr;gap:6px;display:grid}.tf-btn{border:1px solid var(--sm-panel-border);background:var(--sm-btn-bg);cursor:pointer;color:var(--sm-text);text-align:left;word-break:keep-all;border-radius:10px;justify-content:center;align-items:center;gap:6px;min-height:48px;padding:8px;font-family:inherit;font-size:14px;font-weight:700;line-height:1.3;transition:all .1s;display:flex}.tf-btn:hover{background:var(--sm-btn-hover)}.tf-btn:active{background:var(--sm-btn-active);transform:scale(.95)}.tf-btn .ic{color:var(--sm-shape-stroke);flex-shrink:0;font-size:18px}.action-btns{margin-top:10px}.mission-actions{margin-bottom:12px}.mission-panel{background:var(--sm-panel);border-radius:var(--sm-radius);border:2px solid var(--sm-panel-border);margin-bottom:10px;padding:14px;animation:.35s popIn}.mission-panel h3{margin-bottom:8px;font-size:15px;font-weight:700}.mission-panel small{margin-top:4px;font-size:14px;display:inline-block}.mission-panel p{color:var(--sm-text-muted);font-size:15px;line-height:1.6}.quiz-choices{flex-direction:column;gap:8px;margin-top:12px;display:flex}.quiz-choice{border:2px solid var(--sm-panel-border);background:var(--sm-btn-bg);cursor:pointer;min-height:48px;color:var(--sm-text);text-align:center;border-radius:12px;padding:12px 14px;font-family:inherit;font-size:15px;font-weight:700;transition:all .15s}.quiz-choice:hover{border-color:var(--sm-shape)}.quiz-choice:disabled{cursor:default}.quiz-choice.correct{border-color:var(--sm-accent);color:var(--sm-ok-fg);background:#00c8531a}.quiz-choice.wrong{border-color:var(--sm-danger);color:var(--sm-danger);background:#ef535014}.quiz-choice.correct:after{content:" ✓"}.quiz-choice.wrong:after{content:" ✗"}.m-feedback{text-align:center;border-radius:12px;margin-top:10px;padding:12px 14px;font-size:15px;line-height:1.6;animation:.3s popIn}.m-feedback.success{color:var(--sm-ok-fg);background:#00c8531a}.m-feedback.warn{color:var(--sm-warn-fg);background:#ff6d001a}.m-feedback.info{color:var(--sm-shape-stroke);background:#5c6bc01a}.progress-bar{background:var(--sm-btn-bg);border-radius:99px;height:6px;margin-bottom:12px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--sm-shape), var(--sm-accent));border-radius:99px;height:100%;transition:width .4s}.move-counter{text-align:center;color:var(--sm-text-muted);margin:0 0 10px;font-size:14px;font-weight:600}.result-screen{text-align:center;background:radial-gradient(circle at 30% 40%, #00c8530f 0, transparent 40%), radial-gradient(circle at 70% 60%, #5c6bc014 0, transparent 35%), var(--sm-grid-bg)}.result-trophy{color:var(--sm-star);margin-bottom:8px;font-size:72px;line-height:1}.result-screen h1{margin-bottom:4px;font-size:28px;font-weight:800}.result-screen .score-text{color:var(--sm-text-muted);margin-bottom:16px;font-size:18px}.result-stars-row{color:var(--sm-star);margin-bottom:20px;font-size:28px}.result-grid{grid-template-columns:repeat(5,1fr);gap:8px;width:100%;max-width:400px;margin-bottom:20px;display:grid}.result-cell{background:var(--sm-panel);border:1px solid var(--sm-panel-border);border-radius:10px;padding:8px 4px;font-size:14px;font-weight:600}.result-cell .num{font-size:15px;font-weight:700}.result-cell .stars{color:var(--sm-star);font-size:14px}.result-summary-box{background:var(--sm-panel);border:1px solid var(--sm-panel-border);border-radius:var(--sm-radius);text-align:left;width:100%;max-width:440px;margin-bottom:20px;padding:20px 24px}.result-summary-box h3{color:var(--sm-shape-stroke);align-items:center;gap:6px;margin-bottom:8px;font-size:15px;font-weight:700;display:flex}.result-summary-box p{color:var(--sm-text-muted);font-size:15px;line-height:1.7}.result-summary-box strong{color:var(--sm-ok-fg)}.result-btns{justify-content:center;width:100%;max-width:440px}@media (width<=800px){body{overflow:auto}.explore-layout{flex-direction:column;height:auto;min-height:100vh;display:flex}.canvas-zone{z-index:40;height:52vh;min-height:320px;padding:calc(var(--sk-stage-top) + 40px) 8px 8px;flex-shrink:0;position:sticky;top:0}.sidebar{border-left:none;border-top:2px solid var(--sm-panel-border)}.dpad-btn{width:48px;height:48px}.dpad{grid-template-rows:48px 48px 48px;grid-template-columns:48px 48px 48px}.intro-screen h1{font-size:26px}.intro-art{font-size:64px}.result-grid{grid-template-columns:repeat(5,1fr)}}