:root{--clr-bg: #f0f2f5;--clr-surface: #ffffff;--clr-border: #d0d5dd;--clr-border-hover: #9ca3af;--clr-border-focus: #2563eb;--clr-text: #111827;--clr-text-muted: #6b7280;--clr-primary: #2563eb;--clr-primary-h: #1d4ed8;--clr-primary-fg: #ffffff;--radius: 6px;--radius-lg: 10px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06), 0 1px 3px rgba(0, 0, 0, .1);--transition: .15s ease}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;color:var(--clr-text);background:var(--clr-bg)}h1,h2,h3{margin:0 0 1rem;font-weight:600;line-height:1.25}h2{font-size:1.25rem}h3{font-size:1rem}form{display:flex;flex-direction:column;gap:1rem;max-width:640px}fieldset{margin:0;padding:1rem 1.25rem 1.25rem;border:1px solid var(--clr-border);border-radius:var(--radius-lg);background:var(--clr-surface);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:.75rem}legend{padding:0 .375rem;font-size:.6875rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--clr-text-muted)}label{display:flex;flex-direction:column;gap:4px;font-size:.875rem;font-weight:500;color:var(--clr-text)}input[type=text],input[type=email],input[type=date],input[type=time],input[type=number],select,textarea{width:100%;padding:.5rem .75rem;font-size:.875rem;font-family:inherit;line-height:1.5;color:var(--clr-text);background:var(--clr-surface);border:1px solid var(--clr-border);border-radius:var(--radius);outline:none;appearance:none;transition:border-color var(--transition),box-shadow var(--transition)}input[type=text]:hover:not(:disabled),input[type=email]:hover:not(:disabled),input[type=date]:hover:not(:disabled),input[type=time]:hover:not(:disabled),input[type=number]:hover:not(:disabled),select:hover:not(:disabled),textarea:hover:not(:disabled){border-color:var(--clr-border-hover)}input[type=text]:focus,input[type=email]:focus,input[type=date]:focus,input[type=time]:focus,input[type=number]:focus,select:focus,textarea:focus{border-color:var(--clr-border-focus);box-shadow:0 0 0 3px #2563eb26}input[type=text]:disabled,input[type=email]:disabled,input[type=date]:disabled,input[type=time]:disabled,input[type=number]:disabled,select:disabled,textarea:disabled{background:#f9fafb;color:var(--clr-text-muted);cursor:not-allowed}select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%236b7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .625rem center;padding-right:2.25rem;cursor:pointer}textarea{resize:vertical;min-height:80px}.checkbox-label{flex-direction:row;align-items:flex-start;gap:.625rem;font-weight:400;cursor:pointer}.checkbox-label input[type=checkbox]{width:1rem;height:1rem;min-width:1rem;margin-top:2px;accent-color:var(--clr-primary);cursor:pointer}button{display:inline-flex;align-items:center;justify-content:center;gap:.375rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;font-family:inherit;line-height:1.5;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;transition:background var(--transition),opacity var(--transition),border-color var(--transition);background:var(--clr-primary);color:var(--clr-primary-fg);white-space:nowrap}button:hover:not(:disabled){background:var(--clr-primary-h)}button:disabled{opacity:.45;cursor:not-allowed}.btn-secondary{background:var(--clr-surface);color:var(--clr-text);border-color:var(--clr-border)}.btn-secondary:hover:not(:disabled){background:#f9fafb;border-color:var(--clr-border-hover)}app-root{display:block;max-width:800px;margin:0 auto;padding:2rem 1.5rem}.toolbar{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;margin-bottom:1rem}.toolbar input[type=text]{width:auto;min-width:180px;flex:1;max-width:260px}.form-tabs{display:flex;gap:.375rem;flex-wrap:wrap;margin-bottom:1.5rem}.form-tab{padding:.375rem .875rem;font-size:.8125rem;font-weight:500;border-radius:999px;border:1px solid var(--clr-border);background:var(--clr-surface);color:var(--clr-text-muted);cursor:pointer;transition:all var(--transition)}.form-tab:hover:not(.active){border-color:var(--clr-primary);color:var(--clr-primary);background:#2563eb0f}.form-tab.active{background:var(--clr-primary);border-color:var(--clr-primary);color:#fff}pre{margin-top:1rem;padding:.875rem 1rem;background:#1e293b;color:#e2e8f0;border-radius:var(--radius);font-size:.75rem;line-height:1.6;overflow-x:auto}form>button[type=submit]{align-self:flex-start;min-width:140px}.btn-advanced-mode{position:fixed;bottom:1.25rem;right:1.25rem;padding:.375rem .75rem;font-size:.75rem;background:transparent;color:var(--clr-text-muted);border:1px solid var(--clr-border);border-radius:999px;opacity:.5;transition:opacity var(--transition),background var(--transition);z-index:100}.btn-advanced-mode:hover{opacity:1;background:var(--clr-surface)}