:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.app-header{background-color:#fff;border-bottom:1px solid #e5e7eb;padding:1rem 0;position:sticky;top:0;z-index:100;box-shadow:0 1px 3px #0000000d}.header-container{display:flex;justify-content:space-between;align-items:center}.logo-link{text-decoration:none;font-weight:800;font-size:1.5rem;background:linear-gradient(to right,#4f46e5,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.main-nav a{margin-left:1.5rem;text-decoration:none;color:#4b5563;font-weight:600;transition:color .2s}.main-nav a:hover{color:#4f46e5}.app-footer{background-color:#f9fafb;border-top:1px solid #e5e7eb;padding:2rem 0;text-align:center;color:#6b7280;font-size:.875rem;margin-top:auto}.footer-links{margin-bottom:1rem}.footer-links a{color:#4f46e5;text-decoration:none;font-weight:500;margin:0 .5rem}.footer-links a:hover{text-decoration:underline}.footer-disclaimer{max-width:800px;margin:0 auto 1rem;line-height:1.5;font-size:.75rem}.copyright{margin:0}.hero{text-align:center;margin-bottom:2rem}.hero h2{font-size:2rem;background:linear-gradient(to right,#4f46e5,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem}.hero p{color:#6b7280;font-size:1.1rem}.input-group{display:flex;flex-direction:column;gap:1rem}@media(min-width:640px){.input-group{flex-direction:row}}.styled-select,.styled-input{flex:1;padding:1rem;border:1px solid #d1d5db;border-radius:8px;font-size:1rem;font-family:inherit;background-color:#fff;color:#1f2937}.styled-select:focus,.styled-input:focus{outline:none;border-color:#4f46e5;box-shadow:0 0 0 3px #4f46e51a}.result-section{text-align:center;background:linear-gradient(to bottom right,#f0fdf4,#dcfce7);border:1px solid #86efac;animation:slideIn .5s ease-out forwards}.result-highlight{margin:1.5rem 0}.result-number{font-size:3.5rem;font-weight:800;color:#166534}.result-unit{font-size:1.5rem;color:#15803d;font-weight:600}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}:root{--primary: #4F46E5;--bg: #f9fafb;--text: #1f2937}body{margin:0;font-family:Inter,system-ui,sans-serif;background-color:var(--bg);color:var(--text)}.app-layout{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;padding:2rem 0}.container{width:100%;max-width:900px;margin:0 auto;padding:0 1rem;box-sizing:border-box}.card{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;margin-bottom:2rem}.card h2,.card h3{margin-top:0;color:#111827}.card p{line-height:1.6;color:#4b5563;margin-bottom:1rem}.mt-8{margin-top:2rem}.mt-4{margin-top:1rem}.styled-input{width:100%;padding:1rem;border:1px solid #d1d5db;border-radius:8px;font-size:1rem;box-sizing:border-box}.primary-btn{width:100%;padding:1rem;background-color:var(--primary);color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:background-color .2s}.primary-btn:hover{background-color:#4338ca}