:root{--bg-dark:#0a0f1a;--bg-card:#111827b3;--bg-input:#1f2937cc;--border-color:#37415199;--primary:#3b82f6;--primary-hover:#2563eb;--accent:#10b981;--text-main:#f9fafb;--text-muted:#9ca3af;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-dark);color:var(--text-main);background-image:radial-gradient(at 0 0,#3b82f626 0,#0000 50%),radial-gradient(at 100% 0,#10b98126 0,#0000 50%);background-attachment:fixed;flex-direction:column;min-height:100vh;display:flex}.container{width:100%;max-width:1200px;margin:0 auto;padding:2rem}.header{text-align:center;margin-bottom:3rem}.header h1{background:linear-gradient(90deg,#60a5fa,#34d399);-webkit-text-fill-color:transparent;letter-spacing:-.025em;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:700}.header p{color:var(--text-muted);font-size:1.125rem}.app-grid{grid-template-columns:1fr;gap:2rem;display:grid}@media (width>=992px){.app-grid{grid-template-columns:1fr 1fr}}.card{background:var(--bg-card);border:1px solid var(--border-color);-webkit-backdrop-filter:blur(12px);border-radius:1rem;padding:2rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.card h2{border-bottom:1px solid var(--border-color);margin-bottom:1.5rem;padding-bottom:.75rem;font-size:1.5rem;font-weight:600}.form-group{margin-bottom:1.5rem}.form-group label{color:var(--text-muted);margin-bottom:.5rem;font-size:.875rem;font-weight:500;display:block}.form-control{background:var(--bg-input);border:1px solid var(--border-color);width:100%;color:var(--text-main);font-size:1rem;font-family:var(--font-sans);border-radius:.5rem;padding:.75rem 1rem;transition:all .2s}.form-control:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 2px #3b82f640}.form-control::placeholder{color:#4b5563}.result-section{margin-bottom:2rem}.result-section h3{color:var(--primary);margin-bottom:1rem;font-size:1.125rem}.result-row{justify-content:space-between;margin-bottom:.75rem;font-size:1rem;display:flex}.result-row.highlight{color:var(--accent);border-top:1px dashed var(--border-color);padding-top:.75rem;font-size:1.125rem;font-weight:600}.result-row.total{color:#f9fafb;border-top:1px solid var(--border-color);margin-top:.5rem;padding-top:1rem;font-size:1.25rem;font-weight:700}.badge{color:var(--accent);text-transform:uppercase;letter-spacing:.05em;background:#10b98133;border-radius:9999px;margin-left:.5rem;padding:.25rem .75rem;font-size:.75rem;font-weight:600}.footer{text-align:center;color:var(--text-muted);margin-top:auto;padding:2rem;font-size:.875rem}.btn-primary{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:600;transition:background-color .2s,transform .1s}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}