:root{--primary-color:#2563eb;--primary-hover:#1d4ed8;--bg-color:#f8fafc;--card-bg:#fff;--text-color:#1e293b;--border-color:#cbd5e1}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);padding:2rem 1rem;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}.container{background:var(--card-bg);border-radius:12px;max-width:600px;margin:0 auto;padding:2rem;box-shadow:0 4px 6px -1px #0000001a}header{text-align:center;margin-bottom:2rem}header h1{margin-bottom:.5rem;font-size:1.5rem}header p{color:#64748b;font-size:.95rem}.form-group{margin-bottom:1.25rem}label{margin-bottom:.5rem;font-size:.9rem;font-weight:600;display:block}input,textarea,select{border:1px solid var(--border-color);border-radius:6px;width:100%;padding:.75rem;font-family:inherit;font-size:1rem}input:focus,textarea:focus,select:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #2563eb1a}textarea{resize:vertical;min-height:80px}button{background-color:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:6px;width:100%;padding:.75rem;font-size:1rem;font-weight:600;transition:background-color .2s}button:hover{background-color:var(--primary-color)}button.secondary{background-color:#64748b;margin-top:1rem}button.secondary:hover{background-color:#475569}button:disabled{opacity:.6;cursor:not-allowed}.result-section{border-top:1px solid #e2e8f0;margin-top:2rem;padding-top:1.5rem}.result-section h2{margin-bottom:.75rem;font-size:1.2rem}.result-box{border:1px solid var(--border-color);white-space:pre-wrap;color:#475569;background-color:#f1f5f9;border-radius:6px;min-height:100px;padding:1rem}.result-box.placeholder{color:#94a3b8;font-style:italic}