:root{--bg-primary: #0a0e17;--bg-secondary: #111827;--bg-tertiary: #1f2937;--bg-glass: rgba(17, 24, 39, .8);--text-primary: #f9fafb;--text-secondary: #9ca3af;--text-muted: #6b7280;--accent-primary: #3b82f6;--accent-secondary: #8b5cf6;--accent-success: #10b981;--accent-warning: #f59e0b;--accent-danger: #ef4444;--missile-color: #3b82f6;--target-color: #ef4444;--trail-missile: rgba(59, 130, 246, .6);--trail-target: rgba(239, 68, 68, .4);--los-line: rgba(139, 92, 246, .5);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(59, 130, 246, .3);--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .35s ease;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html,body{height:100%;overflow:hidden}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at 20% 20%,rgba(59,130,246,.1) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(139,92,246,.1) 0%,transparent 50%);pointer-events:none;z-index:-1}.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.header{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.05);padding:var(--spacing-sm) var(--spacing-xl);flex-shrink:0;z-index:100}.header-content{max-width:1800px;margin:0 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var(--spacing-sm)}.guidance-info{display:flex;flex-direction:column}.guidance-name{font-weight:600;color:var(--text-primary);font-size:.85rem}.guidance-subtitle{font-size:.75rem;color:var(--text-muted)}.guidance-icon{font-size:1.2rem;background:#ffffff0d;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all var(--transition-base)}.guidance-body{padding:0 var(--spacing-sm) var(--spacing-sm);display:none;border-top:1px solid rgba(255,255,255,.05);background:#0003}.guidance-body p.card-hint{margin:0;font-size:.8rem;color:var(--text-muted);padding-top:var(--spacing-sm);font-style:italic}.guidance-card.active{background:linear-gradient(145deg,#3b82f61a,#11182766);border-color:var(--accent-primary);box-shadow:0 0 15px #3b82f626}.guidance-card.active .guidance-icon{background:var(--accent-primary);color:#fff;transform:scale(1.1);box-shadow:0 0 10px #3b82f666}.guidance-card.active .guidance-name{color:#fff}.guidance-card.active 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rgba(255,255,255,.1);border-radius:var(--radius-sm);font-size:.75rem}.badge-label{color:var(--text-muted);font-weight:500}.badge-value{color:var(--accent-primary);font-weight:600}.range-buttons{margin-top:var(--spacing-xs)}.range-label{display:block;font-size:.65rem;text-transform:uppercase;color:var(--text-muted);margin-bottom:4px}.range-buttons-container{display:flex;gap:4px}.range-btn{flex:1;padding:5px 6px;background:#3b82f61a;border:1px solid rgba(59,130,246,.3);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:.65rem;cursor:pointer;transition:all var(--transition-fast);text-align:center}.range-btn:hover{background:#3b82f633;color:var(--text-primary)}.range-btn.active{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}.pn-constant-control{margin-top:var(--spacing-sm);padding-top:var(--spacing-sm);border-top:1px solid 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label{display:block;font-size:.8125rem;font-weight:500;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.slider-container{display:flex;align-items:center;gap:var(--spacing-sm)}.slider{flex:1;-webkit-appearance:none;appearance:none;height:6px;background:var(--bg-tertiary);border-radius:3px;outline:none;cursor:pointer}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:50%;cursor:pointer;box-shadow:var(--shadow-md);transition:transform var(--transition-fast)}.slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.slider::-moz-range-thumb{width:18px;height:18px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:50%;cursor:pointer;border:none;box-shadow:var(--shadow-md)}.slider-value{min-width:60px;font-family:var(--font-mono);font-size:.8125rem;color:var(--accent-primary);text-align:right}.preset-select{width:100%;padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-tertiary);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-sans);font-size:.875rem;cursor:pointer;transition:all var(--transition-base);appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px 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var(--transition-base)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-glow)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid rgba(255,255,255,.1)}.btn-secondary:hover:not(:disabled){background:#ffffff1a}.btn-icon{font-size:.75rem}.checkbox-group{display:flex;flex-direction:column;gap:var(--spacing-sm)}.checkbox-label{display:flex;align-items:center;gap:var(--spacing-sm);font-size:.8125rem;color:var(--text-secondary);cursor:pointer;transition:color var(--transition-fast)}.checkbox-label:hover{color:var(--text-primary)}.checkbox-label input{display:none}.checkmark{width:18px;height:18px;border:2px solid var(--text-muted);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.checkbox-label input:checked+.checkmark{background:var(--accent-primary);border-color:var(--accent-primary)}.checkbox-label input:checked+.checkmark:after{content:"✓";color:#fff;font-size:.75rem;font-weight:700}.canvas-container{position:relative;background:var(--bg-secondary);border-radius:var(--radius-xl);overflow:hidden;border:1px solid rgba(255,255,255,.05);min-height:0;height:100%}#simulation-canvas{width:100%;height:100%;display:block;cursor:crosshair}.canvas-overlay-top{position:absolute;top:var(--spacing-md);left:var(--spacing-md);pointer-events:none}.playback-controls{display:flex;align-items:center;gap:var(--spacing-md)}.btn-icon-round{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.1);background:#ffffff0d;color:var(--text-primary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 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li{position:relative;padding-left:var(--spacing-lg);margin-bottom:var(--spacing-xs);color:var(--text-secondary)}.explanation-content li:before{content:"→";position:absolute;left:0;color:var(--accent-primary)}.explanation-content .pro{color:var(--accent-success)}.explanation-content .con{color:var(--accent-danger)}.explanation-content .highlight{background:#3b82f633;padding:2px 6px;border-radius:var(--radius-sm);color:var(--accent-primary)}.scenarios{display:flex;flex-direction:column;gap:var(--spacing-sm);margin:var(--spacing-md) 0}.success,.failure{padding:var(--spacing-md);border-radius:var(--radius-md);font-size:.875rem}.success{background:#22c55e1a;border:1px solid rgba(34,197,94,.2)}.failure{background:#ef44441a;border:1px solid rgba(239,68,68,.2)}.success strong{color:var(--accent-success);display:block;margin-bottom:var(--spacing-xs)}.failure strong{color:var(--accent-danger);display:block;margin-bottom:var(--spacing-xs)}.success ul,.failure ul{margin:0;padding-left:var(--spacing-lg)}.success li,.failure li{margin-bottom:var(--spacing-xs);color:var(--text-secondary)}.success li:before{content:"✓";color:var(--accent-success)}.failure li:before{content:"✗";color:var(--accent-danger)}@media(max-width:1400px){.main-content{grid-template-columns:300px 1fr 320px}.main-content.sidebar-collapsed{grid-template-columns:300px 1fr 48px}}@media(max-width:960px){.main-content{grid-template-columns:1fr;grid-template-rows:auto 1fr auto}.main-content.sidebar-collapsed{grid-template-columns:1fr}.sidebar{flex-direction:row;flex-wrap:wrap;gap:var(--spacing-md)}.sidebar .panel{flex:1;min-width:300px}.canvas-container{min-height:400px}.sidebar-toggle{display:none}}@media(max-width:768px){.header-content{flex-direction:column;align-items:flex-start;gap:var(--spacing-xs)}.main-content{padding:var(--spacing-md);gap:var(--spacing-md)}.sidebar .panel{min-width:100%}.guidance-selector{display:grid;grid-template-columns:repeat(2,1fr)}}@keyframes 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var(--transition-fast);flex-shrink:0}.sidebar-toggle:hover{background:#3b82f633;border-color:var(--accent-primary);color:var(--text-primary)}.sidebar-toggle-icon{font-size:.875rem;line-height:1;transition:transform var(--transition-base)}.explanation-panel.collapsed .panel{padding:var(--spacing-sm);display:none}.explanation-panel.collapsed .preset-info-panel{display:flex!important;height:auto;min-height:48px;padding:0;background:transparent;border:none;overflow:visible}.explanation-panel.collapsed .panel-header{flex-direction:column;margin-bottom:0;padding-bottom:0;border-bottom:none;padding:var(--spacing-sm) 0;align-items:center;width:100%}.explanation-panel.collapsed .panel-title,.explanation-panel.collapsed .explanation-content{display:none}.explanation-panel.collapsed .sidebar-toggle-icon{transform:rotate(180deg)}.explanation-panel.collapsed 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0}.formula-box{background:var(--bg-tertiary);border:1px solid rgba(59,130,246,.2);border-radius:var(--radius-md);padding:var(--spacing-md);margin:var(--spacing-md) 0;text-align:center}.formula-label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:var(--spacing-sm)}.formula-content{font-family:var(--font-mono);font-size:1rem;color:var(--accent-primary);padding:var(--spacing-sm) 0}.formula-note{font-size:.8rem;color:var(--text-muted);margin-top:var(--spacing-sm);font-style:italic}.formula-note small{display:block;margin-top:var(--spacing-xs);font-size:.75rem}.accordion{border:1px solid rgba(255,255,255,.05);border-radius:var(--radius-md);margin:var(--spacing-sm) 0;background:#ffffff05;overflow:hidden}.accordion-header{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);font-weight:600;font-size:.9rem;color:var(--text-primary);cursor:pointer;transition:background 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