:root{--font-main: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--color-bg-main: #f8fafc;--color-bg-card: #ffffff;--color-bg-input: #f1f5f9;--color-text-primary: #0f172a;--color-text-secondary: #64748b;--color-accent: #10b981;--color-accent-hover: #059669;--color-accent-glare: rgba(16, 185, 129, .1);--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);--radius-md: .5rem;--radius-lg: .75rem}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--color-bg-main);color:var(--color-text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}.container{max-width:800px;margin:0 auto;padding:1rem}.card{background-color:var(--color-bg-card);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-md);border:1px solid rgba(0,0,0,.05)}.title{font-size:1.875rem;font-weight:700;color:var(--color-text-primary);margin-bottom:.5rem;text-align:center}.subtitle{font-size:1rem;color:var(--color-text-secondary);text-align:center;margin-bottom:2rem}.form-group{margin-bottom:1.25rem}.label{display:block;font-size:.875rem;color:var(--color-text-secondary);margin-bottom:.5rem;font-weight:500}.input{width:100%;padding:.75rem 1rem;background-color:var(--color-bg-input);border:1px solid transparent;border-radius:var(--radius-md);color:var(--color-text-primary);font-size:1rem;outline:none;transition:all .2s}.input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-glare)}.select{width:100%;padding:.75rem 1rem;background-color:var(--color-bg-input);border:1px solid transparent;border-radius:var(--radius-md);color:var(--color-text-primary);font-size:1rem;outline:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");background-position:right .5rem center;background-repeat:no-repeat;background-size:1.5em 1.5em}.button{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:.75rem 1.5rem;background-color:var(--color-accent);color:#fff;font-weight:600;border-radius:var(--radius-md);border:none;cursor:pointer;transition:background-color .2s}.button:hover{background-color:var(--color-accent-hover)}.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:2rem}.result-item{text-align:center;padding:1rem;background-color:#00000008;border-radius:var(--radius-md)}.result-label{font-size:.875rem;color:var(--color-text-secondary)}.result-value{font-size:1.5rem;font-weight:700;color:var(--color-accent);margin-top:.25rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .5s ease-out forwards}