:root{--primary: #4f46e5;--primary-dark: #4338ca;--secondary: #64748b;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--background: #f8fafc;--surface: #ffffff;--text: #1e293b;--text-muted: #64748b;--border: #e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--background);color:var(--text);line-height:1.5}#app{min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border:none;border-radius:.5rem;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-secondary{background-color:var(--secondary);color:#fff}.btn-danger{background-color:var(--danger);color:#fff}.card{background:var(--surface);border-radius:.75rem;box-shadow:0 1px 3px #0000001a;padding:1.5rem}.input{width:100%;padding:.75rem;border:1px solid var(--border);border-radius:.5rem;font-size:1rem}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.label{display:block;margin-bottom:.5rem;font-weight:500}.form-group{margin-bottom:1rem}.alert{padding:1rem;border-radius:.5rem;margin-bottom:1rem}.alert-success{background-color:#dcfce7;color:#166534}.alert-danger{background-color:#fee2e2;color:#991b1b}.alert-warning{background-color:#fef3c7;color:#92400e}