body{margin:0;min-width:320px;min-height:100vh}:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--error-color: #dc2626;--success-color: #16a34a;--bg-color: #f8fafc;--card-bg: #ffffff;--text-color: #1e293b;--border-color: #e2e8f0;--shadow: 0 1px 3px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.6}.app{min-height:100vh;display:flex;justify-content:center;align-items:center;padding:2rem}.prediction-form{background:var(--card-bg);padding:2.5rem;border-radius:12px;box-shadow:var(--shadow-lg);max-width:600px;width:100%}.prediction-form h1{font-size:2rem;margin-bottom:2rem;text-align:center;color:var(--primary-color)}form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:600;font-size:.95rem;color:var(--text-color)}.form-group input,.form-group select{padding:.75rem;border:2px solid var(--border-color);border-radius:6px;font-size:1rem;transition:border-color .2s}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary-color)}button[type=submit]{background:var(--primary-color);color:#fff;padding:1rem;border:none;border-radius:6px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:background-color .2s;margin-top:1rem}button[type=submit]:hover:not(:disabled){background:var(--primary-hover)}button[type=submit]:disabled{opacity:.6;cursor:not-allowed}.loading{text-align:center;padding:2rem;color:var(--text-color)}.error{padding:1rem;background:#fee2e2;border:2px solid var(--error-color);border-radius:6px;color:var(--error-color);margin-top:1.5rem}.result{margin-top:2rem;padding:2rem;background:#f0f9ff;border:2px solid var(--primary-color);border-radius:8px}.result h2{color:var(--primary-color);margin-bottom:1rem;font-size:1.5rem}.price{font-size:2.5rem;font-weight:700;color:var(--success-color);margin-bottom:1.5rem}.inputs-summary h3{font-size:1.1rem;margin-bottom:.75rem;color:var(--text-color)}.inputs-summary ul{list-style:none;display:grid;gap:.5rem}.inputs-summary li{padding:.5rem;background:#fff;border-radius:4px;font-size:.95rem}@media(max-width:640px){.prediction-form{padding:1.5rem}.prediction-form h1{font-size:1.5rem}.price{font-size:2rem}}