.simulation-engine{height:100dvh;display:flex;flex-direction:column;background:var(--dark-bg);overflow:hidden}.sim-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-6);background:var(--dark-surface);border-bottom:.0625rem solid var(--dark-border);height:3.75rem;flex-shrink:0}.sim-header-left{display:flex;align-items:center;gap:var(--space-4)}.sim-title-group{display:flex;flex-direction:column;gap:.125rem}.sim-title{font-size:var(--text-lg);font-weight:var(--font-semibold);color:var(--white);line-height:1.2}.mode-indicator{display:inline-flex;align-items:center;gap:var(--space-1);font-size:var(--text-xs);color:var(--mode-color);font-weight:var(--font-medium)}.sim-header-center{display:flex;align-items:center;gap:var(--space-4)}.mode-switcher{display:flex;gap:var(--space-1);padding:var(--space-1);background:var(--dark-surface-2);border-radius:var(--radius-lg)}.mode-btn{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.25rem;background:transparent;border:none;border-radius:var(--radius-md);color:var(--dark-text-muted);cursor:pointer;transition:all var(--transition-fast)}.mode-btn:hover{background:#ffffff0d;color:var(--white)}.mode-btn.active.mode-primary{background:var(--primary);color:var(--white)}.mode-btn.active.mode-accent{background:var(--accent);color:var(--dark-bg)}.mode-btn.active.mode-success{background:var(--success);color:var(--white)}.sim-header-right{display:flex;align-items:center;gap:var(--space-3)}.score-badge,.level-badge{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:var(--dark-surface-2);border-radius:var(--radius-lg);font-size:var(--text-sm)}.score-badge{background:#ff9a4426;border:.0625rem solid rgba(255,154,68,.3)}.score-label{color:var(--dark-text-muted)}.score-value{color:var(--accent);font-weight:var(--font-bold)}.level-badge{color:var(--primary-light);font-weight:var(--font-medium)}.header-btn{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;background:transparent;border:none;color:var(--dark-text-muted);cursor:pointer;border-radius:var(--radius-lg);transition:all var(--transition-fast)}.header-btn:hover{background:var(--glass-bg);color:var(--white)}.sim-content{flex:1;display:flex;overflow:hidden}.sim-canvas-area{flex:1;position:relative;display:flex;flex-direction:column;background:linear-gradient(180deg,var(--dark-bg) 0%,rgba(46,125,153,.05) 100%)}.sim-canvas-wrapper{flex:1;position:relative;overflow:hidden}.sim-playback{position:absolute;bottom:var(--space-6);left:50%;transform:translate(-50%);display:flex;gap:var(--space-2);padding:var(--space-2);background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl)}.playback-btn{display:flex;align-items:center;justify-content:center;width:3rem;height:3rem;background:var(--dark-surface-2);border:.0625rem solid var(--dark-border);border-radius:var(--radius-lg);color:var(--white);cursor:pointer;transition:all var(--transition-fast)}.playback-btn:hover{background:var(--primary);border-color:var(--primary)}.playback-btn.main{width:3.5rem;height:3.5rem;background:var(--primary);border-color:var(--primary);border-radius:var(--radius-full)}.playback-btn.main.pause{background:var(--accent);border-color:var(--accent)}.sim-control-panel{width:21.25rem;background:var(--dark-surface);border-left:.0625rem solid var(--dark-border);display:flex;flex-direction:column;overflow:hidden}@media(max-width:992px){.sim-control-panel{width:18.75rem}.mode-switcher{display:none}}@media(max-width:768px){.sim-header{flex-wrap:wrap;height:auto;padding:var(--space-3);gap:var(--space-3)}.sim-content{flex-direction:column}.sim-canvas-area{min-height:50vh}.sim-control-panel{width:100%;max-height:40vh}.score-badge,.level-badge{display:none}.sim-playback{bottom:var(--space-2);transform:translate(-50%) scale(.9)}}@media(max-width:992px)and (orientation:landscape){.sim-content{flex-direction:row}.sim-canvas-area{min-height:100%}.sim-control-panel{width:250px;height:100%;border-left:1px solid var(--dark-border);border-top:none}.sim-header{height:50px;padding:var(--space-2)}.sim-title-group{display:none}}.is-fullscreen{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.is-fullscreen .sim-header{position:absolute;top:0;left:0;right:0;z-index:var(--z-modal);background:linear-gradient(180deg,#0f172ae6,#0f172a00);border-bottom:none;transform:translateY(-100%);opacity:0;transition:all var(--transition-normal)}.is-fullscreen.simulation-engine:hover .sim-header{transform:translateY(0);opacity:1}.challenge-complete-card{background:#0f172ae6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:24px;padding:2.5rem;position:relative;display:flex;flex-direction:column;align-items:center;gap:1.5rem;max-width:400px;margin:0 auto;border:1px solid rgba(255,255,255,.1);box-shadow:0 25px 50px -12px #0009}.trophy-container{position:relative;display:flex;justify-content:center;align-items:center;padding:1rem}.glow-effect{position:absolute;width:60px;height:60px;border-radius:50%;filter:blur(20px);opacity:.3;z-index:-1;animation:pulse 2s infinite ease-in-out}@keyframes pulse{0%{transform:scale(1);opacity:.3}50%{transform:scale(1.5);opacity:.5}to{transform:scale(1);opacity:.3}}h2{color:#f7fafc;font-size:1.5rem;text-align:center;margin:0}.score-summary{display:flex;flex-direction:column;align-items:center;gap:.5rem}.score-main{display:flex;align-items:baseline;gap:.5rem}.score-value{font-size:3rem;font-weight:800;line-height:1;background:-webkit-linear-gradient(45deg,#F6E05E,#D69E2E);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.score-total{font-size:1.25rem;color:#a0aec0}.rank-badge{padding:.25rem .75rem;border:2px solid;border-radius:9999px;font-weight:600;text-transform:uppercase;font-size:.75rem;letter-spacing:.05em}.save-status-container{min-height:30px;display:flex;align-items:center;justify-content:center;width:100%}.status-item{display:flex;align-items:center;gap:.5rem;font-size:.875rem;font-weight:500}.status-item.saving{color:#63b3ed}.status-item.saved{color:#48bb78}.status-item.error{color:#fc8181}.status-item.warning{color:#f6ad55}.status-item .spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.action-buttons{display:flex;gap:1rem;margin-top:1rem;width:100%}button{flex:1;padding:.75rem;border-radius:12px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:.5rem;cursor:pointer;transition:all .2s;font-size:.9rem;border:none}.btn-primary{background:linear-gradient(135deg,#4299e1,#3182ce);color:#fff;box-shadow:0 4px 6px -1px #4299e166}.btn-primary:hover{filter:brightness(1.1);transform:translateY(-1px)}.btn-secondary{background:#ffffff1a;color:#e2e8f0;border:1px solid rgba(255,255,255,.1)}.btn-secondary:hover{background:#ffffff26}:root{--sim-color-physics: #3B82F6;--sim-color-physics-glow: rgba(59, 130, 246, .4);--sim-color-mathematics: #8B5CF6;--sim-color-mathematics-glow: rgba(139, 92, 246, .4);--sim-color-chemistry: #10B981;--sim-color-chemistry-glow: rgba(16, 185, 129, .4);--sim-color-biology: #F59E0B;--sim-color-biology-glow: rgba(245, 158, 11, .4);--sim-color-economics: #EF4444;--sim-color-economics-glow: rgba(239, 68, 68, .4);--sim-color-smp: #6366F1;--sim-color-smp-glow: rgba(99, 102, 241, .4);--sim-color-sd: #06B6D4;--sim-color-sd-glow: rgba(6, 182, 212, .4);--sim-panel-bg: rgba(15, 23, 42, .82);--sim-panel-bg-subtle: rgba(255, 255, 255, .04);--sim-panel-border: rgba(255, 255, 255, .09);--sim-panel-border-hover: rgba(255, 255, 255, .2);--sim-blur: blur(16px);--sim-text-heading: #F8FAFC;--sim-text-body: #E2E8F0;--sim-text-muted: #94A3B8;--sim-text-dim: #64748B;--sim-radius-sm: 8px;--sim-radius-md: 12px;--sim-radius-lg: 16px;--sim-radius-pill: 9999px;--sim-shadow-panel: 0 10px 30px -5px rgba(0, 0, 0, .5), inset 0 1px 0 rgba(255, 255, 255, .08);--sim-shadow-button: 0 4px 14px rgba(0, 0, 0, .25)}.sqs-panel{background:var(--sim-panel-bg);backdrop-filter:var(--sim-blur);-webkit-backdrop-filter:var(--sim-blur);border:1px solid var(--sim-panel-border);border-radius:var(--sim-radius-md);box-shadow:var(--sim-shadow-panel);transition:border-color .2s ease,box-shadow .2s ease}.sqs-panel:hover{border-color:var(--sim-panel-border-hover)}.sqs-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--sim-radius-pill);font-size:.75rem;font-weight:600;letter-spacing:.03em;text-transform:uppercase;background:#ffffff12;border:1px solid rgba(255,255,255,.12);color:var(--sim-text-heading)}.sqs-unit{font-size:.78rem;color:var(--sim-text-muted);font-weight:500;margin-left:3px}.sqs-value{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:600;color:#38bdf8}.sqs-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.25rem;margin-bottom:.75rem;gap:1rem;z-index:20;border-radius:var(--sim-radius-md);position:relative}.sqs-header-left{display:flex;align-items:center;gap:1rem;min-width:0}.sqs-btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--sim-radius-sm);background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:var(--sim-text-body);cursor:pointer;transition:all .2s 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rgba(255,255,255,.08)}.sqs-meta-item{display:flex;align-items:center;gap:5px;font-size:.78rem;color:var(--sim-text-muted)}.sqs-stars{display:flex;align-items:center;gap:2px}.sqs-star-filled{color:#fbbf24;fill:#fbbf24}.sqs-star-empty{color:#ffffff26}.sqs-header-actions{display:flex;align-items:center;gap:.5rem}.sqs-btn-action{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--sim-radius-sm);background:#ffffff0f;border:1px solid rgba(255,255,255,.1);color:var(--sim-text-body);font-size:.8rem;font-weight:500;cursor:pointer;transition:all .2s ease}.sqs-btn-action:hover{background:#ffffff1f;border-color:#ffffff40;color:#fff}.sqs-btn-info{background:#3b82f61f;border-color:#3b82f64d;color:#93c5fd}.sqs-btn-info:hover{background:#3b82f640;border-color:#3b82f680;color:#fff}@media(max-width:768px){.sqs-header{flex-direction:column;align-items:stretch;padding:.75rem}.sqs-header-right{justify-content:space-between;border-top:1px solid 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180px);overflow-y:auto;padding-right:2px}.sqs-sidebar::-webkit-scrollbar{width:5px}.sqs-sidebar::-webkit-scrollbar-track{background:transparent}.sqs-sidebar::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:4px}.sqs-sidebar-controls{padding:1rem;display:flex;flex-direction:column;gap:1rem}.sqs-bottom-insight-wrap{margin-top:.25rem}@media(max-width:1024px){.sqs-main-grid{grid-template-columns:1fr}.sqs-stage-container{min-height:400px}.sqs-sidebar{max-height:none}}@media(max-width:640px){.sqs-simulation-shell{padding:.5rem}.sqs-stage-container{min-height:320px}}:root{--z-canvas: 1;--z-canvas-overlay: 20000000;--z-panels: 30000000;--z-handles: 35000000;--z-floating: 40000000;--z-header: 45000000;--z-bottom-drawer: 50000000;--z-modals: 60000000}.adaptive-sim-shell{position:relative;width:100vw;height:100dvh;max-height:100dvh;display:flex;flex-direction:column;background-color:#040914;background-image:radial-gradient(ellipse at 50% -10%,rgba(14,116,144,.22) 0%,transparent 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16px;min-width:0}.adaptive-title-stack{display:flex;flex-direction:column;min-width:0}.adaptive-meta-row{display:flex;align-items:center;gap:6px;font-size:.68rem;letter-spacing:.03em;font-weight:600;text-transform:uppercase}.adaptive-subject-pill{display:inline-flex;align-items:center;gap:4px;padding:1px 7px;border-radius:9999px;border:1px solid}.adaptive-pill-icon{font-size:.75rem}.meta-sep{color:#475569;font-size:.65rem}.adaptive-grade-pill{color:#cbd5e1}.adaptive-topic-pill{color:#94a3b8;font-weight:500;text-transform:none}.adaptive-main-title{margin:0;font-size:.95rem;font-weight:700;color:#f8fafc;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.adaptive-header-right{display:flex;align-items:center;gap:8px;flex-shrink:0}.adaptive-toggle-btn{display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 10px;border-radius:8px;background:#ffffff0a;border:1px solid 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1fr;gap:8px;font-size:12px;margin-bottom:12px}.live-metrics-grid .lbl{color:#94a3b8;margin-right:6px}.live-metrics-grid .val{color:#fff;font-family:ui-monospace,SFMono-Regular,monospace}.status-badge-result{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;font-size:12px;font-weight:600}.status-badge-result.success{background:#10b98126;border:1px solid #10b981;color:#6ee7b7}.status-badge-result.pending{background:#f59e0b26;border:1px solid #f59e0b;color:#fde047}.detail-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-top:8px}.action-load-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:8px;background:#ffffff14;border:1px solid rgba(255,255,255,.15);color:#e2e8f0;font-size:12px;font-weight:600;cursor:pointer;transition:all .15s ease}.action-load-btn:hover{background:#ffffff26;color:#fff}.action-sim-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;background:var(--fs3d-cyan);border:none;color:#04101e;font-size:12.5px;font-weight:700;cursor:pointer;box-shadow:0 0 16px #00e5ff66;transition:all .15s ease}.action-sim-btn:hover{background:#38bdf8;box-shadow:0 0 20px #38bdf899}.fs3d-theory-card{background:#0f172ab3;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:12px 14px}.theory-header{display:flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:#fff;margin-bottom:6px}.theory-text{font-size:12.5px;color:#cbd5e1;line-height:1.5;margin:0}.fs3d-theory-formula-card{background:#00e5ff14;border:1px solid rgba(0,229,255,.3);border-radius:12px;padding:12px 14px}.formula-tag{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--fs3d-cyan);font-weight:700;margin-bottom:4px}.formula-math{font-size:15px;font-weight:800;color:#fff;font-family:ui-monospace,SFMono-Regular,monospace;margin-bottom:4px}.formula-desc{font-size:11.5px;color:#94a3b8;margin:0}@media(max-width:1200px){.fs3d-panel{width:260px}.fs3d-left-panel.collapsed{transform:translate(-280px)}.fs3d-right-panel.collapsed{transform:translate(280px)}.fs3d-bottom-pressure-card{width:500px}}@media(max-width:900px){.fs3d-bottom-pressure-wrapper,.fs3d-subtitle{display:none}}