*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;padding:2rem}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto}.card{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 10px 30px rgba(0,0,0,.2);margin-bottom:2rem}h1{color:#fff;font-size:2.5rem;text-align:center}h1,h2{margin-bottom:1rem}h2{color:#333;font-size:1.5rem}h3{color:#555;font-size:1.2rem;margin-bottom:.5rem}input[type=number]{width:100%;padding:.75rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s}input[type=number]:focus{outline:none;border-color:#667eea}button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:1rem 2rem;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}button:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,.4)}button:active{transform:translateY(0)}button:disabled{background:#ccc;cursor:not-allowed;transform:none}label{display:block;margin-bottom:.5rem;color:#555;font-weight:500}.form-group{margin-bottom:1.5rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:1.5rem;gap:1.5rem}.result-card{background:#f8f9fa;border-left:4px solid #667eea;padding:1.5rem;border-radius:8px;margin-bottom:1rem}.result-card h4{color:#667eea;margin-bottom:.5rem}.result-card.selected{border-left-color:#28a745;background:#f0fff4}.stats{display:flex;justify-content:space-around;flex-wrap:wrap;gap:1rem;margin-top:2rem}.stat-item{text-align:center;padding:1rem;background:#fff;border-radius:8px;min-width:150px}.stat-value{font-size:2rem;font-weight:700;color:#667eea}.stat-label{color:#666;font-size:.9rem;margin-top:.5rem}.error{background:#fee;color:#c33;padding:1rem;border-radius:8px;margin-bottom:1rem;border-left:4px solid #c33}.loading{text-align:center;padding:2rem;color:#666}@media (max-width:768px){body{padding:1rem}h1{font-size:2rem}.card{padding:1.5rem}.grid{grid-template-columns:1fr}}