@import url(https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap);:root{--font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"JetBrains Mono","Courier New",monospace}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-family:var(--font-body);margin:0;transition:background-color .3s ease,color .3s ease}[data-theme=light] body{background:#fff;color:#111827}[data-theme=dark] body{background:#0f172a;color:#f1f5f9}code,pre{font-family:JetBrains Mono,Courier New,monospace;font-family:var(--font-mono)}.no-scrollbar::-webkit-scrollbar{display:none}.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}[data-theme=dark] ::-webkit-scrollbar{height:10px;width:10px}[data-theme=dark] ::-webkit-scrollbar-track{background:#1e293b}[data-theme=dark] ::-webkit-scrollbar-thumb{background:#334155;border-radius:5px}[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background:#475569}:root{--primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;--secondary:#8b5cf6;--secondary-dark:#7c3aed;--accent:#ec4899;--gradient-primary:linear-gradient(135deg,#6366f1,#8b5cf6);--gradient-hero:linear-gradient(135deg,#667eea,#764ba2);--gradient-card:linear-gradient(135deg,#6366f10d,#8b5cf61a);--white:#fff;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--success:#10b981;--warning:#f59e0b;--error:#ef4444;--info:#3b82f6;--shadow-sm:0 2px 8px #00000014;--shadow-md:0 4px 16px #0000001a;--shadow-lg:0 8px 32px #0000001f;--shadow-xl:0 16px 64px #00000026;--shadow-glow:0 0 30px #6366f14d;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--space-xs:0.375rem;--space-sm:0.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono","Fira Code",monospace}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#0f172a;background-image:radial-gradient(at 27% 37%,#3a8bfd 0,#0000 50%),radial-gradient(at 97% 21%,#72fe7d26 0,#0000 50%),radial-gradient(at 52% 99%,#fd3a4e26 0,#0000 50%),radial-gradient(at 10% 29%,#855afc 0,#0000 50%),radial-gradient(at 97% 96%,#e4c79526 0,#0000 50%),radial-gradient(at 33% 50%,#8ca8e8 0,#0000 50%),radial-gradient(at 79% 53%,#eea5ba 0,#0000 50%);color:#111827;color:var(--gray-900);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font-sans);line-height:1.6;min-height:100vh;overflow-x:hidden}.header{backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);background:#fffffff2;border-bottom:1px solid #6366f11a;box-shadow:0 2px 12px #0000000f;padding:.875rem 1.5rem;position:-webkit-sticky;position:sticky;top:0;transition:all .3s ease;z-index:1000}.header.scrolled{box-shadow:0 8px 32px #0000001f;box-shadow:var(--shadow-lg)}.header-content{gap:2rem;justify-content:space-between;margin:0 auto;max-width:1400px}.header-content,.logo{align-items:center;display:flex}.logo{color:var(--text-primary);font-size:1.35rem;font-weight:700;gap:.5rem;letter-spacing:-.01em;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1)}.logo:hover{transform:scale(1.02)}.logo-icon{align-items:center;background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);border-radius:8px;border-radius:var(--radius-sm);box-shadow:0 2px 10px #6366f14d;color:#fff;display:flex;font-size:1.2rem;height:36px;justify-content:center;transition:all .3s ease;width:36px}.logo:hover .logo-icon{box-shadow:0 0 30px #6366f14d;box-shadow:var(--shadow-glow);transform:rotate(-5deg)}.search-container{flex:1 1;position:relative}.search-box{background:#fff;background:var(--white);border:1.5px solid #e5e7eb;border:1.5px solid var(--gray-200);border-radius:9999px;border-radius:var(--radius-full);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font-sans);outline:none;padding:.625rem 1rem .625rem 2.75rem;transition:all .3s cubic-bezier(.4,0,.2,1);width:100%}.search-box:focus{border-color:#6366f1;border-color:var(--primary);box-shadow:0 0 0 4px #6366f11a;transform:translateY(-1px)}.search-icon{color:#9ca3af;color:var(--gray-400);font-size:1rem;left:1rem;pointer-events:none;position:absolute;top:50%;transform:translateY(-50%);transition:color .3s ease}.search-box:focus+.search-icon{color:#6366f1;color:var(--primary)}.theme-toggle{align-items:center;background:linear-gradient(135deg,#6366f10d,#8b5cf61a);background:var(--gradient-card);border:1.5px solid #6366f11a;border-radius:9999px;border-radius:var(--radius-full);cursor:pointer;display:flex;font-size:1.1rem;height:40px;justify-content:center;padding:.5rem;transition:all .4s cubic-bezier(.4,0,.2,1);width:40px}.theme-toggle:hover{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);border-color:#6366f1;border-color:var(--primary);box-shadow:0 0 30px #6366f14d;box-shadow:var(--shadow-glow);transform:rotate(180deg) scale(1.05)}.hero{color:#fff;overflow:hidden;padding:1.25rem 1.5rem;position:relative;text-align:center}.hero:before{background:radial-gradient(circle at 20% 50%,#6366f133 0,#0000 50%),radial-gradient(circle at 80% 80%,#8b5cf633 0,#0000 50%);bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0}.hero h1{font-size:clamp(2.5rem,6vw,4rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:.75rem;text-shadow:0 4px 20px #0003}.hero h1,.hero p{position:relative;z-index:1}.hero p{font-size:clamp(.95rem,2vw,1.1rem);font-weight:400;line-height:1.5;margin:0 auto;max-width:600px;opacity:.9}.container{padding:1.5rem;padding:var(--space-lg)}.categories{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:1.5rem;margin-bottom:var(--space-lg)}.category-btn{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2;border:1.5px solid #0000;border-radius:9999px;border-radius:var(--radius-full);box-shadow:0 2px 8px #00000014;box-shadow:var(--shadow-sm);color:#374151;color:var(--gray-700);cursor:pointer;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font-sans);font-size:.875rem;font-weight:600;padding:.5rem 1.25rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.category-btn:hover{border-color:#6366f1;border-color:var(--primary);box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);color:#6366f1;color:var(--primary);transform:translateY(-3px)}.category-btn.active{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);border-color:#0000;box-shadow:0 0 30px #6366f14d;box-shadow:var(--shadow-glow);color:#fff}.tools-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));margin-bottom:2rem;margin-bottom:var(--space-xl)}.tool-card{background:#fff;border:2px solid #0000;border-radius:12px;border-radius:var(--radius-md);box-shadow:0 2px 8px #00000014;box-shadow:var(--shadow-sm);color:inherit;cursor:pointer;display:block;overflow:hidden;padding:1.5rem;position:relative;text-decoration:none;transition:all .4s cubic-bezier(.4,0,.2,1)}[data-theme=dark] .tool-card{background:#1f2937;background:var(--gray-800);border-color:#374151;border-color:var(--gray-700)}[data-theme=dark] .tool-card,[data-theme=dark] .tool-card h3{color:#f3f4f6;color:var(--gray-100)}[data-theme=dark] .tool-card p{color:#9ca3af;color:var(--gray-400)}.tool-card:before{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);content:"";height:4px;left:0;position:absolute;right:0;top:0;transform:scaleX(0);transform-origin:left;transition:transform .4s ease}.tool-card:hover:before{transform:scaleX(1)}.tool-card:hover{border-color:#6366f133;box-shadow:0 16px 64px #00000026;box-shadow:var(--shadow-xl);transform:translateY(-8px)}.tool-icon{align-items:center;border-radius:8px;border-radius:var(--radius-sm);box-shadow:0 2px 8px #00000014;box-shadow:var(--shadow-sm);display:flex;font-size:1.75rem;height:50px;justify-content:center;margin-bottom:1rem;transition:all .3s ease;width:50px}.tool-card:hover .tool-icon{box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);transform:scale(1.1) rotate(-5deg)}.tool-card h3{color:#111827;color:var(--gray-900);font-size:1.125rem;font-weight:600;letter-spacing:-.01em;margin-bottom:.5rem}.tool-card p{color:#4b5563;color:var(--gray-600);font-size:.875rem;line-height:1.5;margin-bottom:1.25rem}.tool-tag{background:linear-gradient(135deg,#6366f10d,#8b5cf61a);background:var(--gradient-card);border-radius:9999px;border-radius:var(--radius-full);color:#6366f1;color:var(--primary);display:inline-block;font-size:.75rem;font-weight:600;padding:.25rem .75rem;text-transform:capitalize}.why-section{background:#fff;margin:2rem 0 0;margin:var(--space-xl) 0 0 0;padding:3rem 1.5rem;position:relative}.why-section:before{content:"";height:6px;left:0;position:absolute;right:0;top:0}.why-section h2,.why-section:before{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary)}.why-section h2{-webkit-text-fill-color:#0000;-webkit-background-clip:text;background-clip:text;font-size:clamp(1.75rem,4vw,2.25rem);font-weight:700;letter-spacing:-.02em;margin-bottom:.75rem;text-align:center}.why-section .subtitle{color:#4b5563;color:var(--gray-600);font-size:1rem;margin-bottom:1.5rem;margin-bottom:var(--space-lg);margin-left:auto;margin-right:auto;max-width:600px;text-align:center}.features-grid{grid-gap:2.5rem;display:grid;gap:2.5rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.feature-card{background:#fff;border:1.5px solid #f3f4f6;border:1.5px solid var(--gray-100);border-radius:var(--radius-md);overflow:hidden;padding:1.5rem;position:relative;transition:all .4s cubic-bezier(.4,0,.2,1)}.feature-card:before{background:linear-gradient(135deg,#6366f10d,#8b5cf61a);background:var(--gradient-card);content:"";height:100%;left:0;opacity:0;position:absolute;top:0;transition:opacity .4s ease;width:100%}.feature-card:hover:before{opacity:1}.feature-card:hover{border-color:#6366f1;border-color:var(--primary);box-shadow:0 8px 32px #0000001f;box-shadow:var(--shadow-lg);transform:translateY(-8px)}.feature-card-icon{font-size:2.25rem;margin-bottom:1rem;position:relative;transition:transform .4s ease;z-index:1}.feature-card:hover .feature-card-icon{transform:scale(1.2) rotate(-10deg)}.feature-card h3{color:#111827;color:var(--gray-900);font-size:1.125rem;font-weight:600;margin-bottom:.5rem;position:relative;z-index:1}.feature-card p{color:#4b5563;color:var(--gray-600);font-size:1.05rem;line-height:1.7;position:relative;z-index:1}.tool-title{color:#fff;padding:2rem 1.5rem;text-align:center}[data-theme=light] .tool-title{color:#111827;color:var(--gray-900)}.tool-title h1{font-size:clamp(1.75rem,4vw,2.25rem);font-weight:700;letter-spacing:-.02em;margin-bottom:.5rem;text-shadow:0 2px 10px #0003}.tool-title p{font-size:1rem;opacity:.9}.tool-container{background:#fff;border-radius:16px;border-radius:var(--radius-lg);box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);margin-bottom:1.5rem;margin-bottom:var(--space-lg);padding:1.5rem;transition:background-color .3s ease,border-color .3s ease}[data-theme=dark] .tool-container{background:#1f2937;background:var(--gray-800);border:1px solid #374151;border:1px solid var(--gray-700);color:#f3f4f6;color:var(--gray-100)}.section-header{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;border-bottom:2px solid linear-gradient(135deg,#6366f1,#8b5cf6);border-bottom:2px solid var(--gradient-primary);color:#111827;color:var(--gray-900);font-size:1.125rem;font-weight:600;margin-bottom:.75rem;margin-bottom:var(--space-sm);padding-bottom:.375rem}.form-group{margin-bottom:1rem;margin-bottom:var(--space-md)}.form-group label{color:#374151;color:var(--gray-700);display:block;font-size:.9rem;font-weight:600;margin-bottom:.25rem}.form-group input[type=email],.form-group input[type=number],.form-group input[type=text],.form-group select,.form-group textarea{background:#fff;border:1.5px solid #e5e7eb;border:1.5px solid var(--gray-200);border-radius:8px;border-radius:var(--radius-sm);color:#111827;color:var(--gray-900);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font-sans);font-size:1rem;padding:.625rem .875rem;transition:all .3s ease;width:100%}[data-theme=dark] .form-group input,[data-theme=dark] .form-group select,[data-theme=dark] .form-group textarea{background:#1f2937;background:var(--gray-800);border-color:#374151;border-color:var(--gray-700);color:#f3f4f6;color:var(--gray-100)}[data-theme=dark] .form-group input:focus,[data-theme=dark] .form-group select:focus,[data-theme=dark] .form-group textarea:focus{background:#111827;background:var(--gray-900);border-color:#6366f1;border-color:var(--primary)}[data-theme=dark] .form-group label{color:#d1d5db;color:var(--gray-300)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:#6366f1;border-color:var(--primary);box-shadow:0 0 0 4px #6366f11a;outline:none}.calculate-btn{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);border:none;border-radius:8px;border-radius:var(--radius-sm);box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);color:#fff;cursor:pointer;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font-sans);font-size:1rem;font-weight:700;padding:.875rem 1.5rem;transition:all .3s cubic-bezier(.4,0,.2,1);width:100%}.calculate-btn:hover{box-shadow:0 0 30px #6366f14d;box-shadow:var(--shadow-glow);transform:translateY(-2px)}.calculate-btn:active{transform:translateY(0)}.action-btn{background:#f3f4f6;background:var(--gray-100);border:1.5px solid #e5e7eb;border:1.5px solid var(--gray-200);border-radius:8px;border-radius:var(--radius-sm);color:#374151;color:var(--gray-700);cursor:pointer;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-family:var(--font-sans);font-size:.875rem;font-weight:600;padding:.625rem 1.25rem;transition:all .3s ease}.action-btn:hover{background:#e5e7eb;background:var(--gray-200);border-color:#d1d5db;border-color:var(--gray-300);transform:translateY(-2px)}.action-btn.primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);border-color:#0000;color:#fff}.action-btn.primary:hover{box-shadow:0 0 30px #6366f14d;box-shadow:var(--shadow-glow)}.action-btn.danger{background:#ef4444;background:var(--error);border-color:#0000;color:#fff}.slider{-webkit-appearance:none;appearance:none;background:#e5e7eb;background:var(--gray-200);border-radius:9999px;border-radius:var(--radius-full);height:8px;outline:none;width:100%}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);border-radius:50%;box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);cursor:pointer;height:24px;-webkit-transition:all .3s ease;transition:all .3s ease;width:24px}.slider::-webkit-slider-thumb:hover{box-shadow:0 0 30px #6366f14d;box-shadow:var(--shadow-glow);transform:scale(1.2)}.slider::-moz-range-thumb{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);border:none;border-radius:50%;box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);cursor:pointer;height:24px;width:24px}.back-home{align-items:center;background:#fff;border:1.5px solid #6366f1;border:1.5px solid var(--primary);border-radius:8px;border-radius:var(--radius-sm);color:#6366f1;color:var(--primary);display:inline-flex;font-size:1.05rem;font-weight:600;gap:.375rem;padding:.625rem 1.25rem;text-decoration:none;transition:all .3s ease}.back-home:hover{background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);color:#fff;transform:translateY(-2px)}.back-home-container{text-align:center}.back-home-container,.footer{margin-top:2rem;margin-top:var(--space-xl)}.footer{background:#111827;background:var(--gray-900);color:#fff;padding:2.5rem 1.5rem 1.5rem}.footer-content{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin:0 auto 2rem;max-width:1400px}.footer-section h3{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;font-size:1.1rem;font-weight:600;margin-bottom:.875rem}.footer-section p{color:#9ca3af;color:var(--gray-400);font-size:1rem;line-height:1.7}.footer-links{list-style:none}.footer-links li{margin-bottom:.5rem}.footer-links a{color:#9ca3af;color:var(--gray-400);display:inline-block;font-size:1rem;text-decoration:none;transition:all .3s ease}.footer-links a:hover{color:#fff;transform:translateX(5px)}.footer-bottom{border-top:1px solid #1f2937;border-top:1px solid var(--gray-800);margin-top:2rem;padding-top:2rem;text-align:center}.footer-bottom p{color:#6b7280;color:var(--gray-500);font-size:1rem}.features-info{background:#fff;border-radius:16px;border-radius:var(--radius-lg);box-shadow:0 4px 16px #0000001a;box-shadow:var(--shadow-md);margin-bottom:2rem;margin-bottom:var(--space-xl);padding:1.5rem;padding:var(--space-lg)}.features-info h2{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#6366f1,#8b5cf6);background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;font-size:1.75rem;font-weight:800;margin-bottom:1.5rem;margin-bottom:var(--space-lg);text-align:center}.notification{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:8px;border-radius:var(--radius-sm);box-shadow:0 8px 32px #0000001f;box-shadow:var(--shadow-lg);display:flex;font-size:1.05rem;font-weight:600;gap:1rem;padding:.875rem 1.5rem;position:fixed;right:2rem;top:100px;transform:translateX(400px);transition:transform .4s cubic-bezier(.4,0,.2,1);z-index:10000}.notification.show{transform:translateX(0)}.notification.success{background:#10b981;background:var(--success);box-shadow:0 4px 20px #10b98166;color:#fff}.notification.error{background:#ef4444;background:var(--error);box-shadow:0 4px 20px #ef444466;color:#fff}.notification.info{background:#3b82f6;background:var(--info);box-shadow:0 4px 20px #3b82f666;color:#fff}body.dark-mode{background:linear-gradient(135deg,#0f172a,#1e293b)}body.dark-mode .header{background:#0f172af2;border-bottom-color:#6366f133}body.dark-mode .search-box{background:#1f2937;background:var(--gray-800);border-color:#374151;border-color:var(--gray-700);color:#fff}body.dark-mode .features-info,body.dark-mode .tool-card,body.dark-mode .tool-container,body.dark-mode .why-section{background:#1f2937;background:var(--gray-800);box-shadow:0 8px 32px #0000004d}body.dark-mode .section-header,body.dark-mode .tool-card h3,body.dark-mode h1,body.dark-mode h2,body.dark-mode h3{color:#fff}body.dark-mode .tool-card p,body.dark-mode p{color:#d1d5db;color:var(--gray-300)}body.dark-mode 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