:root{--primary:#4361ee;--primary-light:#4895ef;--primary-dark:#3a0ca3;--secondary:#7209b7;--accent:#f72585;--success:#4cc9f0;--warning:#f8961e;--error:#ef233c;--white:#ffffff;--gray-50:#f8f9fa;--gray-100:#e9ecef;--gray-200:#dee2e6;--gray-300:#ced4da;--gray-400:#adb5bd;--gray-500:#6c757d;--gray-600:#495057;--gray-700:#343a40;--gray-800:#212529;--black:#000000;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,sans-serif;--font-mono:"Roboto Mono",monospace;--space-xs:0.25rem;--space-sm:0.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-xxl:3rem;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04);--transition-fast:150ms ease-in-out;--transition-normal:250ms ease-in-out;--transition-slow:400ms ease-in-out}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);line-height:1.6;color:var(--gray-800);background-color:var(--gray-50);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4{line-height:1.2;font-weight:600;margin-bottom:var(--space-md)}h1{font-size:2.25rem;color:var(--primary-dark)}h2{font-size:1.75rem;color:var(--primary);padding-bottom:var(--space-sm)}h3{font-size:1.25rem;color:var(--gray-700)}h4{font-size:1.1rem}h4,p{color:var(--gray-600)}p{margin-bottom:var(--space-md)}small{font-size:.875rem;color:var(--gray-500)}.app-container{max-width:1440px;margin:0 auto;padding:var(--space-lg);min-height:100vh;display:flex;flex-direction:column}.app-header{text-align:center;margin-bottom:var(--space-xl);padding:var(--space-lg) 0}.app-header h1{margin-bottom:var(--space-sm)}.app-main{flex:1 1;width:100%}.card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--space-xl);margin-bottom:var(--space-xl);transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.card-section{margin-bottom:var(--space-xl)}.input-group{margin-bottom:var(--space-lg)}.input-row{display:flex;flex-direction:column;margin-bottom:var(--space-md)}label{margin-bottom:var(--space-xs);font-size:.9375rem;font-weight:500;color:var(--gray-700)}.form-input,input[type=number],input[type=text]{padding:var(--space-sm) var(--space-md);border:1px solid var(--gray-300);border-radius:var(--radius-sm);font-size:1rem;font-family:var(--font-sans);width:100%;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-input:focus,input[type=number]:focus,input[type=text]:focus,select:focus{outline:none;border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(67,97,238,.15)}.matrix-container{margin-bottom:var(--space-xl);overflow-x:auto;background:var(--white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:var(--space-md)}.table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch}table{width:100%;border-collapse:collapse;margin-bottom:var(--space-md);font-size:.9375rem}td,th{padding:var(--space-sm) var(--space-md);text-align:center;border:1px solid var(--gray-200)}th{font-weight:600;color:var(--gray-700);position:-webkit-sticky;position:sticky;top:0}th,tr:nth-child(2n){background-color:var(--gray-50)}.matrix-input{width:60px;padding:var(--space-xs) var(--space-sm);text-align:center;border:1px solid var(--gray-300);border-radius:var(--radius-sm)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);font-size:1rem;font-weight:500;line-height:1.5;text-align:center;text-decoration:none;cursor:pointer;transition:all var(--transition-fast);border:none}.btn-primary{background-color:var(--primary);color:var(--white)}.btn-primary:hover{background-color:var(--primary-dark);box-shadow:var(--shadow-md)}.btn-block{width:100%}.results-section{margin-top:var(--space-xl);padding-top:var(--space-lg);border-top:1px solid var(--gray-200)}.result-item{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-sm);padding:var(--space-sm) var(--space-md);background-color:var(--gray-50);border-radius:var(--radius-md);transition:background-color var(--transition-fast)}.result-item:hover{background-color:var(--gray-100)}.result-item strong{font-weight:600;color:var(--primary);font-size:1.1rem}.result-item small{font-size:.8125rem;color:var(--gray-500);margin-left:var(--space-xs)}.results-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:var(--space-md);gap:var(--space-md)}.characteristics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:var(--space-md);gap:var(--space-md)}.form-columns{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));grid-gap:var(--space-xl);gap:var(--space-xl)}.app-footer{text-align:center;margin-top:auto;padding:var(--space-lg) 0;color:var(--gray-600);font-size:.875rem;border-top:1px solid var(--gray-200)}.disclaimer{font-size:.8125rem;margin-top:var(--space-sm);color:var(--gray-500);max-width:800px;margin-left:auto;margin-right:auto}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.card{animation:fadeIn .3s ease-out forwards}.mobile-select-container{margin-bottom:var(--space-lg)}.mobile-select-label{display:block;font-weight:500;color:var(--gray-700);margin-bottom:var(--space-xs);font-size:.9375rem}.mobile-select-wrapper{position:relative;display:block}.mobile-select{appearance:none;-webkit-appearance:none;-moz-appearance:none;width:100%;padding:var(--space-sm) var(--space-md);padding-right:2.5rem;font-size:1rem;color:var(--gray-800);background-color:var(--white);border:1px solid var(--gray-300);border-radius:var(--radius-sm);box-shadow:none;transition:border-color var(--transition-fast),box-shadow var(--transition-fast);min-height:48px}.mobile-select:focus{outline:none;border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(67,97,238,.15)}.mobile-select-arrow{position:absolute;right:var(--space-md);top:50%;transform:translateY(-50%);pointer-events:none;color:var(--gray-500);font-size:1rem;line-height:1}@media (max-width:480px){.mobile-select{font-size:.95rem;padding:var(--space-sm) var(--space-md);padding-right:2.5rem}.mobile-select-arrow{right:var(--space-sm)}}@media (max-width:768px){html{font-size:15px}.app-container{padding:var(--space-md)}.characteristics-grid,.form-columns{grid-template-columns:1fr}.form-columns{gap:var(--space-lg)}.results-grid{grid-template-columns:1fr}.card{padding:var(--space-lg)}}@media (max-width:480px){html{font-size:14px}.app-header{margin-bottom:var(--space-lg);padding:var(--space-md) 0}h1{font-size:1.75rem}h2{font-size:1.5rem}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.text-center{text-align:center}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mt-xl{margin-top:var(--space-xl)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.mb-xl{margin-bottom:var(--space-xl)}.pixel-button{overflow:hidden;border:none;border-radius:20px;padding:0;font-family:Roboto,sans-serif;font-size:1rem;font-weight:500;letter-spacing:.025em;text-transform:none;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);height:40px;min-width:120px;display:inline-flex;justify-content:center;-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.button-content,.pixel-button{position:relative;align-items:center}.button-content{z-index:1;display:flex;gap:8px;padding:0 24px}.button-icon{font-size:1.2em;transition:transform .2s ease}.pixel-button.primary{background-color:#1a73e8;color:white;box-shadow:0 2px 4px rgba(26,115,232,.2),0 1px 2px rgba(26,115,232,.24)}.pixel-button.primary:hover{background-color:#1765cc;box-shadow:0 4px 8px rgba(26,115,232,.3),0 2px 4px rgba(26,115,232,.28)}.pixel-button.primary:active{background-color:#185abc;box-shadow:0 1px 2px rgba(26,115,232,.3)}.button-ripple{position:absolute;border-radius:50%;background-color:rgba(255,255,255,.7);transform:scale(0);animation:ripple .6s linear;pointer-events:none}@keyframes ripple{to{transform:scale(4);opacity:0}}.pixel-button:disabled{background-color:#e8eaed!important;color:#9aa0a6!important;box-shadow:none!important;cursor:not-allowed;transform:none!important}.button-spinner{width:20px;height:20px;border-radius:50%;border:2px solid rgba(255,255,255,.3);border-top-color:white;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(1turn)}}.pixel-button.calculating .button-icon{display:none}