:root{--is-mobile: 0;--primary-50: #f0f9ff;--primary-100: #e0f2fe;--primary-200: #bae6fd;--primary-300: #7dd3fc;--primary-400: #38bdf8;--primary-500: #0ea5e9;--primary-600: #0284c7;--primary-700: #0369a1;--primary-800: #075985;--primary-900: #0c4a6e;--primary-950: #082f49;--secondary-50: #faf5ff;--secondary-100: #f3e8ff;--secondary-200: #e9d5ff;--secondary-300: #d8b4fe;--secondary-400: #c084fc;--secondary-500: #a855f7;--secondary-600: #9333ea;--secondary-700: #7c3aed;--secondary-800: #6b21a8;--secondary-900: #581c87;--secondary-950: #3b0764;--accent-gold: #fbbf24;--accent-emerald: #10b981;--accent-rose: #f43f5e;--accent-indigo: #6366f1;--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-300: #cbd5e1;--gray-400: #94a3b8;--gray-500: #64748b;--gray-600: #475569;--gray-700: #334155;--gray-800: #1e293b;--gray-900: #0f172a;--gray-950: #020617;--success-50: #ecfdf5;--success-100: #d1fae5;--success-500: #10b981;--success-600: #059669;--success-700: #047857;--warning-50: #fffbeb;--warning-100: #fef3c7;--warning-500: #f59e0b;--warning-600: #d97706;--warning-700: #b45309;--error-50: #fef2f2;--error-100: #fee2e2;--error-500: #ef4444;--error-600: #dc2626;--error-700: #b91c1c;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", Consolas, monospace;--font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--space-4xl: 6rem;--space-5xl: 8rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / .25);--shadow-glow: 0 0 20px rgb(14 165 233 / .3);--shadow-glow-purple: 0 0 20px rgb(168 85 247 / .3);--shadow-glow-gold: 0 0 20px rgb(251 191 36 / .3);--shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / .06);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--transition-fast: .15s ease-out;--transition-normal: .25s ease-out;--transition-slow: .35s ease-out;--transition-bounce: .3s cubic-bezier(.68, -.55, .265, 1.55);--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal-backdrop: 1040;--z-modal: 1050;--z-popover: 1060;--z-tooltip: 1070;--z-toast: 1080}[data-theme=dark]{--primary-50: #1e3a8a;--primary-100: #1e40af;--primary-200: #1d4ed8;--primary-300: #2563eb;--primary-400: #3b82f6;--primary-500: #3b82f6;--primary-600: #2563eb;--primary-700: #1d4ed8;--primary-800: #dbeafe;--primary-900: #eff6ff;--gray-50: #111827;--gray-100: #1f2937;--gray-200: #374151;--gray-300: #4b5563;--gray-400: #6b7280;--gray-500: #9ca3af;--gray-600: #d1d5db;--gray-700: #e5e7eb;--gray-800: #f3f4f6;--gray-900: #f9fafb}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-sans);line-height:1.6;color:var(--gray-900);background:linear-gradient(135deg,#f8fafc,#e2e8f0,#cbd5e1);min-height:100vh;overflow-x:hidden}[data-theme=dark] body{color:var(--gray-100);background:linear-gradient(135deg,#0f172a,#1e293b,#334155)!important}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;letter-spacing:-.025em;color:var(--gray-900)}[data-theme=dark] h1,[data-theme=dark] h2,[data-theme=dark] h3,[data-theme=dark] h4,[data-theme=dark] h5,[data-theme=dark] h6{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3)}h1{font-size:3.5rem}h2{font-size:2.5rem}h3{font-size:2rem}h4{font-size:1.5rem}h5{font-size:1.25rem}h6{font-size:1.125rem}p{color:var(--gray-700);margin-bottom:var(--space-md)}[data-theme=dark] p{color:#e2e8f0;text-shadow:0 1px 1px rgba(0,0,0,.2)}.scroll-behavior-auto{scroll-behavior:auto!important}.page-hero{padding-top:8rem;padding-bottom:3rem}.page-hero h1{font-size:3.5rem;font-weight:700;margin-bottom:1.5rem;color:var(--primary-600)}.page-hero p{font-size:1.25rem;color:var(--gray-600);max-width:48rem;margin:0 auto;line-height:1.6}[data-theme=dark] .page-hero h1{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3)}[data-theme=dark] .page-hero p{color:#e2e8f0;text-shadow:0 1px 1px rgba(0,0,0,.2)}#loading{position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,var(--primary-600) 0%,var(--secondary-600) 100%);display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);transition:opacity var(--transition-slow),visibility var(--transition-slow)}#loading.hidden{opacity:0;visibility:hidden}.loading-content{text-align:center;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%}.loading-logo{width:120px;height:120px;margin:0 auto var(--space-2xl);display:flex;align-items:center;justify-content:center}.loading-logo-image{width:100%;height:100%;object-fit:contain;animation:pulse 2s ease-in-out infinite;filter:drop-shadow(0 4px 8px rgba(0,0,0,.3))}.loading-text{font-size:1.5rem;font-weight:600;margin-bottom:var(--space-lg);color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.3);text-align:center;width:100%}.loading-content p{margin-bottom:var(--space-lg);color:#ffffffe6;font-size:1.1rem;text-align:center;width:100%}.loading-progress{width:300px;height:4px;background:#ffffff1a;border-radius:var(--radius-full);overflow:hidden;margin:0 auto}.loading-progress-bar{height:100%;background:linear-gradient(90deg,var(--accent-gold) 0%,var(--accent-emerald) 100%);border-radius:var(--radius-full);box-shadow:var(--shadow-glow-gold);animation:progressFill 2s ease-out forwards}@keyframes gradientShift{0%,to{transform:rotate(0)}50%{transform:rotate(180deg)}}@keyframes pulse{}@keyframes progressFill{0%{width:0%}to{width:100%}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse-glow{0%,to{box-shadow:var(--shadow-glow-gold)}50%{box-shadow:0 0 30px #fbbf2480}}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.header{position:fixed;top:0;left:0;right:0;z-index:var(--z-sticky);background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.2);transition:all var(--transition-normal)}[data-theme=dark] .header{background:#0f172afa!important;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.1)}.header.scrolled{background:#fffffffa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-lg);border-bottom-color:var(--primary-200)}[data-theme=dark] .header.scrolled{background:#0f172afa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom-color:var(--primary-700)}.header-content{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-xl);max-width:1400px;margin:0 auto}.logo{display:flex;align-items:center;gap:var(--space-md);font-size:1.75rem;font-weight:800;color:var(--primary-600);text-decoration:none}[data-theme=dark] .logo{background:linear-gradient(135deg,#fff,#f1f5f9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.logo:hover{color:var(--primary-700);transform:translateY(-2px)}.logo:hover .logo-icon{box-shadow:var(--shadow-glow-purple)}.logo-icon{width:90px;height:90px;background:transparent;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;overflow:hidden}.logo-image{width:100%;height:100%;object-fit:contain;border-radius:var(--radius-lg);transform:scale(2.16)}.brand-typography{display:flex;flex-direction:column;margin-left:12px}.brand-title{font-weight:800;font-size:20px;line-height:1;color:var(--gray-900)}.brand-subtitle{font-weight:600;font-size:12px;line-height:1.2;color:var(--gray-600)}[data-theme=dark] .brand-title{color:#fff}[data-theme=dark] .brand-subtitle{color:#cbd5e1}.nav{display:flex;align-items:center;gap:var(--space-xl)}.nav-link{color:var(--gray-700);text-decoration:none;font-weight:500;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);position:relative}[data-theme=dark] .nav-link{color:#e2e8f0;text-shadow:0 1px 1px rgba(0,0,0,.2)}.nav-link:hover{color:var(--primary-600);background:#0ea5e91a;transform:translateY(-1px)}[data-theme=dark] .nav-link:hover{color:#f8fafc;background:#f8fafc1a}.nav-link.active{color:var(--primary-600);background:#0ea5e91a}[data-theme=dark] .nav-link.active{color:#f8fafc;background:#f8fafc1a}.nav-link:after{content:"";position:absolute;bottom:0;left:50%;width:0;height:2px;background:linear-gradient(90deg,var(--primary-500) 0%,var(--secondary-500) 100%);transition:all var(--transition-normal);transform:translate(-50%)}[data-theme=dark] .nav-link:after{background:linear-gradient(90deg,#fff,#f1f5f9)}.nav-link:hover:after,.nav-link.active:after{width:80%}.header-actions{display:flex;align-items:center;gap:var(--space-md)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border:none;border-radius:var(--radius-lg);font-weight:600;font-size:.875rem;text-decoration:none;cursor:pointer;transition:all var(--transition-normal)}.btn-primary{background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-600) 100%);color:#fff;box-shadow:var(--shadow-glow);border:1px solid rgba(255,255,255,.2)}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-700) 100%);transform:translateY(-2px);box-shadow:var(--shadow-glow-purple)}.btn-secondary{background:#fffffff2;color:var(--gray-800);border:1px solid rgba(0,0,0,.1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 8px #0000001a}[data-theme=dark] .btn-secondary{background:#0f172acc;color:#fff;border:1px solid rgba(255,255,255,.1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-secondary:hover{background:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #00000026}[data-theme=dark] .btn-secondary:hover{background:#0f172ae6;transform:translateY(-1px)}.btn-white{background:#fff;color:var(--gray-800);border:1px solid rgba(0,0,0,.1);box-shadow:0 2px 8px #0000001a}.btn-white:hover{background:#f8fafc;transform:translateY(-1px);box-shadow:0 4px 12px #00000026}.btn-outline-white{background:transparent;color:#fff;border:2px solid #ffffff;box-shadow:0 2px 8px #ffffff1a}.btn-outline-white:hover{background:#ffffff1a;transform:translateY(-1px);box-shadow:0 4px 12px #fff3}.btn-outline{background:transparent;color:var(--primary-600, #0284c7);border:2px solid var(--primary-600, #0284c7);box-shadow:0 2px 8px #0284c71a}.btn-outline:hover{background:#0284c71a;transform:translateY(-1px);box-shadow:0 4px 12px #0284c733}[data-theme=dark] .btn-outline{color:var(--primary-400, #38bdf8);border-color:var(--primary-400, #38bdf8)}[data-theme=dark] .btn-outline:hover{background:#38bdf81a}.theme-toggle-btn{display:flex;align-items:center;justify-content:center;transition:all .3s ease;position:relative;min-width:48px}.theme-toggle-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #0003}.theme-toggle-btn .theme-icon{transition:all .3s ease}.theme-toggle-btn:active{transform:scale(.95)}[data-theme=dark] .theme-toggle-btn{background:#ffffff26;border:1px solid rgba(255,255,255,.2);color:#fff}[data-theme=dark] .theme-toggle-btn:hover{background:#ffffff40;border:1px solid rgba(255,255,255,.3)}.btn-lg{padding:var(--space-md) var(--space-2xl);font-size:1rem}.btn-sm{padding:var(--space-xs) var(--space-md);font-size:.75rem}.mobile-menu-toggle{display:none;flex-direction:column;gap:4px;cursor:pointer;padding:var(--space-sm)}.mobile-menu-toggle span{width:24px;height:2px;background:var(--gray-700);transition:all var(--transition-normal)}[data-theme=dark] .mobile-menu-toggle span{background:#fff}.mobile-menu{position:fixed;top:0;right:0;bottom:0;width:100%;max-width:400px;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:var(--z-modal);transform:translate(100%);transition:transform var(--transition-slow)}[data-theme=dark] .mobile-menu{background:#0f172af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.mobile-menu.open{transform:translate(0)}.mobile-menu-content{padding:var(--space-2xl);height:100%;display:flex;flex-direction:column}.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-2xl)}.mobile-menu-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--gray-700);padding:var(--space-sm);border-radius:var(--radius-md);transition:all var(--transition-normal)}[data-theme=dark] .mobile-menu-close{color:#fff}.mobile-menu-close:hover{background:#0000001a}.mobile-nav{display:flex;flex-direction:column;gap:var(--space-md);flex:1}.mobile-nav-link{padding:var(--space-md);border-radius:var(--radius-lg);color:var(--gray-700);text-decoration:none;font-weight:500;transition:all var(--transition-normal)}[data-theme=dark] .mobile-nav-link{color:#fff;text-shadow:0 1px 1px rgba(0,0,0,.2)}.mobile-nav-link:hover{background:#0ea5e91a;color:var(--primary-600)}@media (max-width: 768px){.mobile-nav-link{padding:var(--space-lg);font-size:18px;border-radius:var(--radius-xl);margin-bottom:var(--space-sm)}.mobile-menu-actions{margin-top:auto;padding-top:var(--space-xl)}.mobile-menu-actions .btn{width:100%;margin-bottom:var(--space-md)}.mobile-menu-actions .language-selector{width:100%}.mobile-menu-actions .lang-select{width:100%;padding:var(--space-md);font-size:16px}}#main-app{display:none;min-height:100vh;padding-top:80px}.main-content{min-height:calc(100vh - 80px)}.container{max-width:1400px;margin:0 auto;padding:0 var(--space-xl)}.hero{position:relative;padding:var(--space-4xl) 0}.hero:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#0ea5e90d,#a855f70d);z-index:-1}.hero-content{position:relative;text-align:center;max-width:800px;margin:0 auto}.hero-title{font-size:4rem;font-weight:900;background:linear-gradient(135deg,var(--primary-600) 0%,var(--secondary-600) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-xl);line-height:1.1}.hero-subtitle{font-size:1.25rem;color:#4b5563;margin-bottom:var(--space-2xl);max-width:600px;margin-left:auto;margin-right:auto}[data-theme=dark] .hero-subtitle{color:#fff;text-shadow:0 1px 1px rgba(0,0,0,.2)}[data-theme=dark] .hero-title{-webkit-text-fill-color:#ffffff!important;color:#fff!important;background:none!important;-webkit-background-clip:unset!important;background-clip:unset!important}[data-theme=light] .hero-title{-webkit-text-fill-color:transparent!important;color:transparent!important;background:linear-gradient(135deg,var(--primary-600) 0%,var(--secondary-600) 100%)!important;-webkit-background-clip:text!important;background-clip:text!important}[data-theme=dark] .section-title{color:#fff!important;background:none!important;-webkit-background-clip:unset!important;background-clip:unset!important;-webkit-text-fill-color:#ffffff!important}[data-theme=light] .section-title{color:var(--primary-600)!important;background:none!important;-webkit-background-clip:unset!important;background-clip:unset!important;-webkit-text-fill-color:unset!important}.hero-actions{display:flex;gap:var(--space-lg);justify-content:center;flex-wrap:wrap}.breadcrumbs{background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1);padding:var(--space-sm) 0;margin-bottom:var(--space-lg)}.breadcrumb-list{display:flex;align-items:center;gap:var(--space-xs);list-style:none;margin:0;padding:0;font-size:.875rem}.breadcrumb-item{display:flex;align-items:center;color:var(--text-secondary)}.breadcrumb-item:not(:last-child):after{content:"›";margin-left:var(--space-xs);color:var(--text-muted);font-weight:600}.breadcrumb-link{color:var(--primary-600);text-decoration:none;transition:color var(--transition-normal)}.breadcrumb-link:hover{color:var(--primary-700);text-decoration:underline}.breadcrumb-item.active{color:var(--text-primary);font-weight:500}[data-theme=dark] .breadcrumbs{background:#0003;border-bottom-color:#ffffff1a}[data-theme=dark] .breadcrumb-item{color:#ffffffb3}[data-theme=dark] .breadcrumb-item.active{color:#ffffffe6}[data-theme=dark] .breadcrumb-link{color:var(--primary-400)}[data-theme=dark] .breadcrumb-link:hover{color:var(--primary-300)}.faq-section{padding:var(--space-3xl) 0;background:linear-gradient(135deg,#0ea5e90d,#3b82f60d)}.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:var(--space-lg)}.faq-item{background:#fffc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-xl);padding:var(--space-xl);border:1px solid rgba(255,255,255,.2);box-shadow:0 8px 32px #0000001a;transition:all var(--transition-normal)}.faq-item:hover{transform:translateY(-2px);box-shadow:0 12px 40px #00000026}.faq-question{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0 0 var(--space-md) 0;line-height:1.4}.faq-answer{color:var(--text-secondary);line-height:1.6}.faq-answer p{margin:0;font-size:1rem}[data-theme=dark] .faq-section{background:linear-gradient(135deg,#0ea5e91a,#3b82f61a)}[data-theme=dark] .faq-item{background:#0000004d;border-color:#ffffff1a;box-shadow:0 8px 32px #0000004d}[data-theme=dark] .faq-item:hover{box-shadow:0 12px 40px #0006}[data-theme=dark] .faq-question{color:#ffffffe6}[data-theme=dark] .faq-answer{color:#ffffffb3}.features{padding:var(--space-3xl) 0}.section-header{text-align:center;margin-bottom:var(--space-4xl)}.section-header h2{background:linear-gradient(135deg,var(--primary-600) 0%,var(--secondary-600) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}[data-theme=dark] .section-header h2{color:#fff!important;background:none!important;-webkit-background-clip:unset!important;background-clip:unset!important;-webkit-text-fill-color:#ffffff!important}[data-theme=light] .section-header h2{color:transparent!important;background:linear-gradient(135deg,var(--primary-600) 0%,var(--secondary-600) 100%)!important;-webkit-background-clip:text!important;background-clip:text!important;-webkit-text-fill-color:transparent!important}.section-title{font-size:3rem;font-weight:800;color:var(--primary-600);margin-bottom:var(--space-lg)}.section-subtitle{font-size:1.125rem;color:var(--gray-600);max-width:600px;margin:0 auto}[data-theme=dark] .section-subtitle{color:#e2e8f0;text-shadow:0 1px 1px rgba(0,0,0,.2)}.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-2xl);margin-top:var(--space-2xl);max-width:1100px;margin-left:auto;margin-right:auto}.feature-card{background:#fff;border:1px solid #e5e7eb;border-radius:var(--radius-xl);padding:0;transition:all var(--transition-normal);position:relative;box-shadow:0 4px 6px -1px #0000001a;overflow:hidden}[data-theme=dark] .feature-card{background:#2d2d2d;border:1px solid #404040;box-shadow:0 4px 6px -1px #0000004d}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-glow)}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#0ea5e91a,#a855f71a);border-radius:var(--radius-xl);opacity:0;transition:opacity var(--transition-normal);z-index:-1}.feature-card:hover:before{opacity:1}.feature-icon{width:100%;height:394px;background:transparent;border-radius:0;display:flex;align-items:center;justify-content:center;margin-bottom:0;overflow:hidden;transition:all var(--transition-normal)}.feature-image{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;filter:brightness(1.05) contrast(1.1)}.feature-card:hover .feature-image{filter:brightness(1.1) contrast(1.15) saturate(1.1)}.feature-title{font-size:1.5rem;font-weight:700;margin-bottom:var(--space-lg);color:var(--gray-900);padding:0 var(--space-2xl);padding-top:var(--space-xl);text-align:center}[data-theme=dark] .feature-title{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3);text-align:center}.feature-description{color:#4b5563;line-height:1.7;font-size:1.125rem;padding:0 var(--space-2xl);padding-bottom:var(--space-2xl);text-align:center}[data-theme=dark] .feature-description{color:#e2e8f0;text-align:center}[data-theme=dark] .feature-description{color:#fff;text-shadow:0 1px 1px rgba(0,0,0,.2)}.simulations{padding:var(--space-3xl) 0;background:#f8fafc}[data-theme=dark] .simulations{background:#1f1f1f}.simulations-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:var(--space-2xl);margin-top:var(--space-3xl)}.simulation-card{background:#fff;border:1px solid #e5e7eb;border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition-normal);cursor:pointer;box-shadow:0 2px 4px #0000000d}[data-theme=dark] .simulation-card{background:#2d2d2d;border:1px solid #404040;box-shadow:0 2px 4px #0003}.simulation-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-glow)}.simulation-preview{height:320px;background:var(--primary-100);display:flex;align-items:center;justify-content:center;overflow:hidden}[data-theme=dark] .simulation-preview{background:var(--primary-900)}.simulation-icon{width:100%;height:100%;display:flex;align-items:center;justify-content:center;z-index:1;transition:all var(--transition-normal)}.simulation-icon img{width:100%;height:100%;object-fit:cover;border-radius:0;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;filter:brightness(1.02) contrast(1.05)}.simulation-badge{position:absolute;top:var(--space-md);right:var(--space-md);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);font-size:.75rem;font-weight:600;z-index:2}.simulation-badge.beginner{background:var(--success-100);color:var(--success-700)}.simulation-badge.intermediate{background:var(--warning-100);color:var(--warning-700)}.simulation-badge.advanced{background:var(--error-100);color:var(--error-700)}.simulation-content{padding:var(--space-xl)}.simulation-title{font-size:1.5rem;font-weight:700;margin-bottom:var(--space-md);color:var(--gray-900)}[data-theme=dark] .simulation-title{color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.3)}.simulation-description{color:#4b5563;margin-bottom:var(--space-lg);line-height:1.6}[data-theme=dark] .simulation-description{color:#e2e8f0;text-shadow:0 1px 1px rgba(0,0,0,.2)}.simulation-meta{display:flex;justify-content:space-between;align-items:center}.simulation-category{padding:var(--space-xs) var(--space-md);background:var(--gray-100);color:var(--gray-700);border-radius:var(--radius-full);font-size:.75rem;font-weight:600}[data-theme=dark] .simulation-category{background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.2)}[data-theme=dark] #nucleus-instructions,[data-theme=dark] #nucleus-instructions h5,[data-theme=dark] #nucleus-instructions li,[data-theme=dark] #nucleus-instructions .text-gray-600,[data-theme=dark] .bg-white\/95 h4,[data-theme=dark] .bg-white\/95 .text-gray-800,[data-theme=dark] .bg-white\/95 .text-gray-500,[data-theme=dark] .bg-white\/95 .text-gray-700,[data-theme=dark] [class*=bg-white] h4,[data-theme=dark] [class*=bg-white] .text-gray-800,[data-theme=dark] [class*=bg-white] .text-gray-500,[data-theme=dark] [class*=bg-white] .text-gray-700{color:#fff!important}.simulation-button{opacity:0;transform:translate(10px);transition:all var(--transition-normal)}.simulation-card:hover .simulation-button{opacity:1;transform:translate(0)}@keyframes 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solid rgba(255,255,255,.1);color:#e2e8f0}[data-theme=dark] .bg-gradient-to-br.from-blue-500\/20 .text-blue-600,[data-theme=dark] .bg-gradient-to-br.from-blue-500\/20 .text-blue-500,[data-theme=dark] .bg-gradient-to-br.from-emerald-500\/20 .text-emerald-600,[data-theme=dark] .bg-gradient-to-br.from-emerald-500\/20 .text-emerald-500,[data-theme=dark] .bg-gradient-to-br.from-purple-500\/20 .text-purple-600,[data-theme=dark] .bg-gradient-to-br.from-purple-500\/20 .text-purple-500,[data-theme=dark] .bg-gradient-to-br.from-orange-500\/20 .text-orange-600,[data-theme=dark] .bg-gradient-to-br.from-orange-500\/20 .text-orange-500{color:#fff!important}@media (max-width: 768px){.header-content{padding:var(--space-md)}.nav{display:none}.mobile-menu-toggle{display:flex}.hero-title{font-size:2.5rem}.hero-actions{flex-direction:column;align-items:center}.features-grid,.simulations-grid{grid-template-columns:1fr}.section-title{font-size:2rem}.container{padding:0 var(--space-md)}}@media (max-width: 480px){.hero-title{font-size:2rem}.section-title{font-size:1.75rem}.feature-card,.simulation-card{padding:var(--space-lg)}.feature-icon{height:256px}.simulation-preview{height:240px}}@media (max-width: 768px){canvas{height:60vh!important;min-height:300px!important;max-height:600px!important}.simulation-container canvas,.simulation-wrapper canvas{width:100%!important;height:60vh!important;min-height:300px!important;max-height:600px!important}.feature-icon{height:384px}}@media (max-width: 480px){canvas{height:50vh!important;min-height:250px!important;max-height:500px!important}.simulation-container canvas,.simulation-wrapper canvas{height:50vh!important;min-height:250px!important;max-height:500px!important}.simulation-container{padding:var(--space-sm)}.simulation-controls{flex-direction:column;gap:var(--space-md);padding:var(--space-md)}.simulation-controls .control-group{width:100%}.simulation-controls 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var(--primary-500)}.text-primary{color:var(--primary-600)}.text-secondary{color:var(--secondary-600)}.text-success{color:var(--success-600)}.text-warning{color:var(--warning-600)}.text-error{color:var(--error-600)}.bg-primary{background:var(--primary-600)}.bg-secondary{background:var(--secondary-600)}.bg-success{background:var(--success-600)}.bg-warning{background:var(--warning-600)}.bg-error{background:var(--error-600)}.rounded-sm{border-radius:var(--radius-sm)}.rounded-md{border-radius:var(--radius-md)}.rounded-lg{border-radius:var(--radius-lg)}.rounded-xl{border-radius:var(--radius-xl)}.rounded-2xl{border-radius:var(--radius-2xl)}.rounded-full{border-radius:var(--radius-full)}.shadow-sm{box-shadow:var(--shadow-sm)}.shadow-md{box-shadow:var(--shadow-md)}.shadow-lg{box-shadow:var(--shadow-lg)}.shadow-xl{box-shadow:var(--shadow-xl)}.shadow-2xl{box-shadow:var(--shadow-2xl)}.transition{transition:all var(--transition-normal)}.transition-fast{transition:all 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solid var(--gray-300);border-radius:var(--radius-md);padding:.5rem 2rem .5rem .75rem;font-size:.875rem;font-weight:500;color:var(--gray-700);cursor:pointer;transition:all var(--transition-normal);min-width:120px}.lang-select:hover{background:var(--gray-200);border-color:var(--gray-400)}.lang-select:focus{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 3px #0ea5e91a}.lang-select option{background:var(--gray-50);color:var(--gray-700);padding:.5rem}[data-theme=dark] .lang-select{background:var(--gray-800);border-color:var(--gray-600);color:var(--gray-200)}[data-theme=dark] .lang-select:hover{background:var(--gray-700);border-color:var(--gray-500)}[data-theme=dark] .lang-select option{background:var(--gray-800);color:var(--gray-200)}@media (max-width: 768px){.lang-select{min-width:100px;font-size:.8rem;padding:.4rem 1.5rem .4rem .6rem}}@media (max-width: 480px){.simulation-canvas-container{height:50vh;min-height:250px}.simulation-controls{max-height:35vh}.simulation-meters,.simulation-charts{max-height:25vh}.btn{min-height:40px;min-width:40px;padding:var(--space-sm) var(--space-md);font-size:.9rem}.btn-sm{min-height:36px;min-width:36px;padding:var(--space-xs) var(--space-sm);font-size:.8rem}.controls-content,.meters-content,.charts-content{padding:var(--space-sm)}.control-section h4,.help-section h4{font-size:1rem;margin-bottom:var(--space-sm)}.setting-item,.parameter-item{margin-bottom:var(--space-sm)}.setting-label,.parameter-label{font-size:.9rem;margin-bottom:var(--space-xs)}.setting-value,.parameter-value{font-size:.8rem}}@media (hover: none) and (pointer: coarse){.btn,.nav-link,.mobile-nav-link,.simulation-canvas,input[type=range],select{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}.btn,.nav-link,.mobile-nav-link{min-height:44px;min-width:44px}.btn:active,.nav-link:active,.mobile-nav-link:active{transition:transform .1s ease}.simulation-controls,.simulation-meters,.simulation-charts{-webkit-overflow-scrolling:touch;scroll-behavior:smooth}input[type=text],input[type=number],input[type=email],select,textarea{font-size:16px}}@media (max-width: 768px) and (orientation: landscape){.simulation-main{flex-direction:row;gap:var(--space-md)}.simulation-canvas-container{width:60%;height:80vh}.simulation-controls{width:40%;max-height:80vh}.simulation-meters,.simulation-charts{display:none}.hero{padding:var(--space-2xl) 0}.hero-title{font-size:2rem}}@media (-webkit-min-device-pixel-ratio: 2),(min-resolution: 192dpi){.simulation-canvas{image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media screen and (device-width: 393px) and (device-height: 852px),screen and (width: 393px) and (height: 852px){.header{padding-top:env(safe-area-inset-top);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.footer{padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}.simulation-fullscreen{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:9999;background:var(--gray-900);display:flex;flex-direction:column}.simulation-fullscreen .simulation-canvas-container{flex:1;height:auto;min-height:0;max-height:none}.simulation-fullscreen canvas{width:100%!important;height:100%!important;min-height:0!important;max-height:none!important}.simulation-fullscreen .simulation-controls{position:absolute;bottom:0;left:0;right:0;background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--gray-700);padding:var(--space-md);max-height:40vh;overflow-y:auto}.simulation-fullscreen .fullscreen-toggle{position:absolute;top:var(--space-md);right:var(--space-md);z-index:10000;background:#000000b3;border:none;color:#fff;padding:var(--space-sm);border-radius:var(--radius-full);width:44px;height:44px;display:flex;align-items:center;justify-content:center}.btn,.nav-link,.mobile-nav-link,.simulation-controls button,.simulation-controls input[type=range]{min-height:44px;min-width:44px}.container{padding:0 var(--space-md)}.hero{padding:var(--space-2xl) 0}.hero-title{font-size:2.5rem}.simulations-grid{grid-template-columns:1fr;gap:var(--space-lg)}.simulation-card{border-radius:var(--radius-xl);overflow:hidden}.simulation-main{display:flex;flex-direction:column;height:calc(100vh - 80px);gap:0}.simulation-canvas-container{flex:1;height:60vh;min-height:400px;position:relative}.simulation-controls{flex-shrink:0;max-height:40vh;overflow-y:auto;background:var(--gray-50);border-top:1px solid var(--gray-200);padding:var(--space-md)}[data-theme=dark] .simulation-controls{background:var(--gray-800);border-top-color:var(--gray-700)}.mobile-menu{padding-top:env(safe-area-inset-top)}.mobile-menu-content{height:calc(100vh - env(safe-area-inset-top));display:flex;flex-direction:column}.mobile-nav{flex:1;display:flex;flex-direction:column;gap:var(--space-sm);padding:var(--space-lg)}.mobile-nav-link{padding:var(--space-lg);font-size:18px;border-radius:var(--radius-xl);background:var(--gray-100);transition:all var(--transition-normal)}.mobile-nav-link:hover,.mobile-nav-link.active{background:var(--primary-100);color:var(--primary-700)}[data-theme=dark] .mobile-nav-link{background:var(--gray-800)}[data-theme=dark] .mobile-nav-link:hover,[data-theme=dark] .mobile-nav-link.active{background:var(--primary-900);color:var(--primary-300)}}.simulation-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:var(--gray-900);z-index:9999;display:none;flex-direction:column}.simulation-overlay.active{display:flex}.simulation-overlay-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md);background:#000c;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--gray-700)}.simulation-overlay-title{color:#fff;font-size:1.125rem;font-weight:600}.simulation-overlay-close{background:none;border:none;color:#fff;font-size:1.5rem;padding:var(--space-sm);cursor:pointer;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);transition:background-color var(--transition-normal)}.simulation-overlay-close:hover{background:#ffffff1a}.simulation-overlay-content{flex:1;display:flex;flex-direction:column;overflow:hidden}@media (max-width: 768px){.simulation-overlay canvas{width:100vh!important;height:100vw!important;max-width:none!important;max-height:none!important;transform:rotate(90deg);transform-origin:center;position:absolute;top:50%;left:50%;margin-top:-50vw;margin-left:-50vh;background:#f6f8ff!important}.simulation-overlay-content{padding:0!important;overflow:hidden;position:relative;background:#f6f8ff!important}.simulation-overlay-header{height:60px!important;padding:12px 16px!important}.btn,.nav-link,.simulation-card{min-height:44px!important;touch-action:manipulation!important;-webkit-user-select:none!important;user-select:none!important;transition:all .2s ease!important;border-radius:12px!important;box-shadow:0 2px 8px #0000001a!important}.btn:active,.nav-link:active,.simulation-card:active{transform:scale(.95)!important;box-shadow:0 1px 4px #0003!important}}@media screen and (width: 393px) and (height: 852px),screen and (width: 852px) and (height: 393px){.simulation-overlay canvas{width:100vh!important;height:100vw!important;max-width:none!important;max-height:none!important;transform:rotate(90deg);transform-origin:center;position:absolute;top:50%;left:50%;margin-top:-50vw;margin-left:-50vh;background:#f6f8ff!important}.simulation-overlay-content{padding:0!important;overflow:hidden;position:relative;background:#f6f8ff!important}.simulation-overlay-header{height:50px!important;padding:8px 16px!important}.simulation-overlay-close{width:32px!important;height:32px!important;font-size:16px!important}}.simulation-overlay-canvas{flex:1;position:relative}.simulation-overlay-canvas canvas{width:100%!important;height:100%!important;min-height:0!important;max-height:none!important}.simulation-overlay-controls{background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--gray-700);padding:var(--space-md);max-height:35vh;overflow-y:auto}.mobile-simulation-controls{display:flex;flex-direction:column;gap:var(--space-md)}.mobile-control-group{display:flex;flex-direction:column;gap:var(--space-sm)}.mobile-control-label{font-size:.875rem;font-weight:600;color:var(--gray-300);text-transform:uppercase;letter-spacing:.05em}.mobile-control-input{background:var(--gray-800);border:1px solid var(--gray-600);border-radius:var(--radius-md);padding:var(--space-md);color:#fff;font-size:16px;width:100%}.mobile-control-input:focus{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 3px #0ea5e91a}.mobile-control-slider{width:100%;height:44px;-webkit-appearance:none;background:var(--gray-700);border-radius:var(--radius-full);outline:none}.mobile-control-slider::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;background:var(--primary-500);border-radius:var(--radius-full);cursor:pointer}.mobile-control-slider::-moz-range-thumb{width:24px;height:24px;background:var(--primary-500);border-radius:var(--radius-full);cursor:pointer;border:none}.mobile-control-button{background:var(--primary-600);color:#fff;border:none;border-radius:var(--radius-md);padding:var(--space-md);font-size:16px;font-weight:600;cursor:pointer;transition:all var(--transition-normal);min-height:44px}.mobile-control-button:hover{background:var(--primary-700)}.mobile-simulation-launch{position:fixed;bottom:var(--space-lg);right:var(--space-lg);background:var(--primary-600);color:#fff;border:none;border-radius:var(--radius-full);width:60px;height:60px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-xl);z-index:1000;transition:all var(--transition-normal)}.mobile-simulation-launch:hover{background:var(--primary-700)}.mobile-simulation-launch svg{width:24px;height:24px}@media screen and (device-width: 393px) and (device-height: 852px) and (orientation: landscape),screen and (width: 393px) and (height: 852px) and (orientation: landscape){.simulation-overlay-content{flex-direction:row}.simulation-overlay-canvas{width:70%}.simulation-overlay-controls{width:30%;max-height:none;border-top:none;border-left:1px solid var(--gray-700)}.mobile-simulation-controls{gap:var(--space-sm)}.mobile-control-group{gap:var(--space-xs)}.mobile-control-label{font-size:.75rem}.mobile-control-input,.mobile-control-button{padding:var(--space-sm);font-size:14px}}.simulation-button{opacity:1!important;transform:translate(0)!important;background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-600) 100%);color:#fff;border:none;border-radius:var(--radius-lg);padding:var(--space-sm) var(--space-lg);font-weight:600;font-size:.875rem;cursor:pointer;transition:all var(--transition-normal);text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);box-shadow:var(--shadow-glow);border:1px solid rgba(255,255,255,.2)}.simulation-button:hover{background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-700) 100%);transform:translateY(-2px);box-shadow:var(--shadow-glow-purple)}[data-theme=dark] .simulation-button{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;box-shadow:0 4px 12px #3b82f666,0 2px 4px #0000004d;border:1px solid rgba(255,255,255,.3);text-shadow:0 1px 2px rgba(0,0,0,.5)}[data-theme=dark] .simulation-button:hover{background:linear-gradient(135deg,#2563eb,#1d4ed8);transform:translateY(-2px);box-shadow:0 6px 16px #3b82f680,0 4px 8px #0006;border-color:#fff6}.simulation-card:hover .simulation-button{opacity:1!important;transform:translate(0)!important}[data-theme=dark] .control-group input[type=range]::-webkit-slider-thumb{background:#60a5fa;box-shadow:0 2px 8px #3b82f666}[data-theme=dark] .control-group input[type=range]::-moz-range-thumb{background:#60a5fa;box-shadow:0 2px 8px #3b82f666}.simulation-container{padding:var(--space-xl);background:#ffffffe6;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(229,231,235,.8)}[data-theme=dark] .simulation-container{background:#0f172ae6;border:1px solid rgba(59,130,246,.3);box-shadow:0 8px 32px #0006}.simulation-main{display:flex;gap:var(--space-2xl);min-height:600px}.simulation-canvas-container{flex:1;background:var(--gray-50);border-radius:var(--radius-lg);overflow:hidden;position:relative;min-height:500px}[data-theme=dark] .simulation-canvas-container{background:var(--gray-800)}.simulation-controls{width:300px;background:var(--gray-50);border-radius:var(--radius-lg);padding:var(--space-xl);overflow-y:auto;max-height:600px}[data-theme=dark] .simulation-controls{background:var(--gray-800)}.control-group{display:flex;flex-direction:column;gap:var(--space-sm);margin-bottom:var(--space-lg)}.control-group label{font-weight:600;color:var(--gray-700);margin-bottom:var(--space-xs);font-size:.875rem}[data-theme=dark] .control-group label{color:#e2e8f0;text-shadow:0 1px 2px rgba(0,0,0,.5)}.control-group input[type=range]{width:100%;height:6px;background:var(--gray-200);border-radius:var(--radius-full);outline:none;-webkit-appearance:none;cursor:pointer}[data-theme=dark] .control-group input[type=range]{background:var(--gray-600)}.control-group input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;background:var(--primary-500);border-radius:var(--radius-full);cursor:pointer;box-shadow:var(--shadow-md)}.control-group input[type=range]::-moz-range-thumb{width:20px;height:20px;background:var(--primary-500);border-radius:var(--radius-full);cursor:pointer;border:none;box-shadow:var(--shadow-md)}[data-theme=dark] .control-group input[type=range]::-webkit-slider-thumb{background:#60a5fa;box-shadow:0 4px 8px #0000004d}@media (max-width: 768px){:root{--is-mobile: 1}}@media (max-width: 768px){.header{padding:.75rem 1rem;position:sticky;top:0;z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0f172acc}.header-content{flex-direction:row;justify-content:space-between;align-items:center}.logo{flex:1;min-width:0}.logo-icon{width:32px;height:32px}.brand-title{font-size:1.125rem;font-weight:700}.brand-subtitle{font-size:.75rem;display:none}.nav{display:none}.header-actions{gap:.5rem}.theme-toggle-btn{width:40px;height:40px;padding:0}.language-selector{display:none}.mobile-menu-toggle{display:flex;flex-direction:column;gap:4px;width:32px;height:32px;background:none;border:none;cursor:pointer;padding:0}.mobile-menu-toggle span{width:20px;height:2px;background:var(--gray-300);border-radius:1px;transition:all .3s ease}.mobile-menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.mobile-menu-toggle.active span:nth-child(2){opacity:0}.mobile-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-6px)}}.mobile-menu{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:9999;transform:translate(-100%);transition:transform .3s ease;display:none}.mobile-menu.active{transform:translate(0);display:block}.mobile-menu-content{padding:2rem 1.5rem;height:100%;display:flex;flex-direction:column}.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--gray-700)}.mobile-menu-header h3{font-size:1.5rem;font-weight:700;color:var(--gray-100)}.mobile-menu-close{background:none;border:none;color:var(--gray-400);font-size:2rem;cursor:pointer;padding:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center}.mobile-nav{flex:1;display:flex;flex-direction:column;gap:1rem}.mobile-nav-link{display:block;padding:1rem;color:var(--gray-300);text-decoration:none;font-size:1.125rem;font-weight:500;border-radius:var(--radius-lg);transition:all .3s ease;border:1px solid transparent}.mobile-nav-link:hover{background:var(--primary-500);color:#fff;border-color:var(--primary-400)}.mobile-menu-actions{display:flex;gap:1rem;align-items:center;padding-top:1rem;border-top:1px solid var(--gray-700)}.mobile-menu-actions .theme-toggle-btn{width:48px;height:48px}.mobile-menu-actions .language-selector{display:block;flex:1}.mobile-menu-actions .lang-select{width:100%;padding:.75rem;font-size:1rem}@media (max-width: 768px){.main-content{padding:1rem;min-height:calc(100vh - 80px)}.hero{padding:2rem 0;text-align:center}.hero-title{font-size:2rem;line-height:1.2;margin-bottom:1rem}.hero-subtitle{font-size:1.125rem;margin-bottom:2rem}.hero-actions{flex-direction:column;gap:1rem;align-items:center}.btn{width:100%;max-width:300px;padding:1rem 2rem;font-size:1.125rem}}@media (max-width: 768px){.simulations-grid{grid-template-columns:1fr;gap:1rem}.simulation-card{padding:1.5rem}.simulation-card-header{flex-direction:column;align-items:flex-start;gap:.5rem}.simulation-card-title{font-size:1.25rem}.simulation-card-description{font-size:.875rem}.simulation-card-actions{flex-direction:column;gap:.5rem}.simulation-card-actions .btn{width:100%}}@media (max-width: 768px){.simulation-overlay{padding:0}.simulation-overlay-header{padding:1rem;position:sticky;top:0;background:#0f172af2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100}.simulation-overlay-title{font-size:1.125rem}.simulation-overlay-close{width:40px;height:40px}.simulation-overlay-content{height:calc(100vh - 80px);flex-direction:column}.simulation-overlay-canvas{flex:1;min-height:0}.simulation-overlay-controls{padding:1rem;background:var(--gray-900);border-top:1px solid var(--gray-700)}}@media (max-width: 768px){.footer{padding:2rem 1rem}.footer-content{grid-template-columns:1fr;gap:2rem}.footer-section h3,.footer-section h4{font-size:1.125rem;margin-bottom:1rem}.footer-section ul{gap:.5rem}.footer-section a{font-size:.875rem;padding:.5rem 0}.footer-bottom{margin-top:2rem;padding-top:1rem;text-align:center}.footer-bottom p{font-size:.875rem}}@media (max-width: 768px){.loading-content{padding:2rem 1rem}.loading-logo-image{width:80px;height:80px}.loading-text{font-size:2rem}.loading-content p{font-size:1rem}}@media (max-width: 768px){.btn{min-height:48px;touch-action:manipulation}.nav-link{min-height:48px;display:flex;align-items:center;padding:.75rem 1rem}.simulation-card{touch-action:manipulation}.simulation-card:hover{transform:none}.simulation-card:active{transform:scale(.98)}}@media (max-width: 768px) and (orientation: landscape){.hero{padding:1rem 0}.hero-title{font-size:1.75rem}.hero-subtitle{font-size:1rem}.simulation-overlay-content{height:calc(100vh - 60px)}}[data-theme=dark] .mobile-menu{background:#0f172af2}[data-theme=dark] .mobile-nav-link{color:var(--gray-300)}[data-theme=dark] .mobile-nav-link:hover{background:var(--primary-500);color:#fff}@media (max-width: 768px){*{-webkit-tap-highlight-color:transparent}.simulation-card{transition:transform .2s ease,box-shadow .2s ease}.btn{transition:all .2s ease}.mobile-menu{transition:transform .3s ease}}@media (max-width: 768px){.btn:focus,.nav-link:focus,.mobile-nav-link:focus{outline:2px solid var(--primary-500);outline-offset:2px}.mobile-menu-toggle:focus{outline:2px solid var(--primary-500);outline-offset:2px;border-radius:4px}}.lab-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000bf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:10000;padding:1rem;animation:fadeIn .2s ease-out}.lab-modal{background:var(--card-bg, #ffffff);border-radius:1rem;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;max-width:900px;max-height:90vh;width:100%;display:flex;flex-direction:column;animation:slideUp .3s ease-out}.lab-modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--gray-200, #e5e7eb)}.lab-modal-close{background:transparent;border:none;font-size:1.5rem;cursor:pointer;color:var(--gray-500, #6b7280);padding:.25rem;line-height:1;transition:color .2s}.lab-modal-close:hover{color:var(--gray-900, #111827)}.lab-modal-body{overflow-y:auto;padding:1.5rem;flex:1}.lab-modal-content{color:var(--text-primary, #111827);line-height:1.6}.lab-modal-content h1,.lab-modal-content h2,.lab-modal-content h3,.lab-modal-content h4{color:var(--primary-600, #0284c7);margin-top:1.5rem;margin-bottom:.75rem}.lab-modal-content h1:first-child,.lab-modal-content h2:first-child,.lab-modal-content h3:first-child,.lab-modal-content h4:first-child{margin-top:0}.lab-modal-content ul,.lab-modal-content ol{margin-left:1.5rem;margin-bottom:1rem}.lab-modal-content code{background:var(--gray-100, #f3f4f6);padding:.125rem .375rem;border-radius:.25rem;font-size:.875em}.lab-modal-content pre{background:var(--gray-100, #f3f4f6);padding:1rem;border-radius:.5rem;overflow-x:auto;margin:1rem 0}.lab-modal-content table{width:100%;border-collapse:collapse;margin:1rem 0}.lab-modal-content table th,.lab-modal-content table td{border:1px solid var(--gray-300, #d1d5db);padding:.5rem;text-align:left}.lab-modal-content table th{background:var(--gray-100, #f3f4f6);font-weight:600}[data-theme=dark] .lab-modal{background:var(--card-bg, #1f2937);border:1px solid var(--gray-700, #374151)}[data-theme=dark] .lab-modal-header{border-bottom-color:var(--gray-700, #374151)}[data-theme=dark] .lab-modal-content{color:var(--text-primary, #f9fafb)}[data-theme=dark] .lab-modal-content code,[data-theme=dark] .lab-modal-content pre{background:var(--gray-800, #1f2937);color:var(--gray-100, #f3f4f6)}[data-theme=dark] .lab-modal-content table th,[data-theme=dark] .lab-modal-content table td{border-color:var(--gray-600, #4b5563)}[data-theme=dark] .lab-modal-content table th{background:var(--gray-800, #1f2937)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}