:root{--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-success:#16a34a;--color-warning:#f59e0b;--color-danger:#dc2626;--color-bg:#fff;--color-bg-secondary:#f8fafc;--color-bg-tertiary:#f1f5f9;--color-border:#e2e8f0;--color-text:#1e293b;--color-text-secondary:#64748b;--color-text-muted:#94a3b8;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px rgba(0,0,0,.07);--shadow-lg:0 10px 15px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--color-text);background-color:var(--color-bg-secondary);line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.page-container{max-width:1200px;margin:0 auto;padding:24px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.page-title{font-size:1.75rem;font-weight:700;color:var(--color-text)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:none;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;cursor:pointer;transition:background-color .15s ease}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--color-bg-tertiary);color:var(--color-text)}.btn-secondary:hover{background-color:var(--color-border)}.btn-danger{background-color:var(--color-danger);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background-color:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm)}.grid{display:grid;grid-gap:20px;gap:20px}.grid-3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.form-group{margin-bottom:16px}.form-label{display:block;font-size:.875rem;font-weight:600;margin-bottom:4px;color:var(--color-text)}.form-input,.form-select,.form-textarea{width:100%;padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:.875rem;font-family:inherit}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.form-textarea{min-height:120px;resize:vertical}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:.75rem;font-weight:600}.badge-success{background-color:#dcfce7;color:#166534}.badge-warning{background-color:#fef3c7;color:#92400e}.badge-danger{background-color:#fee2e2;color:#991b1b}.badge-info{background-color:#dbeafe;color:#1e40af}.badge-muted{background-color:var(--color-bg-tertiary);color:var(--color-text-secondary)}.alert{padding:12px 16px;border-radius:var(--radius-md);margin-bottom:16px;font-size:.875rem}.alert-error{background-color:#fee2e2;color:#991b1b;border:1px solid #fecaca}.alert-success{background-color:#dcfce7;color:#166534;border:1px solid #bbf7d0}.alert-info{background-color:#dbeafe;color:#1e40af;border:1px solid #bfdbfe}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background-color:var(--color-bg);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);max-width:600px;width:90%;max-height:85vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid var(--color-border)}.modal-body{padding:20px}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:20px;border-top:1px solid var(--color-border)}.code-block{background-color:#1e293b;color:#e2e8f0;padding:12px;border-radius:var(--radius-md);font-family:SF Mono,Monaco,Cascadia Code,monospace;font-size:.8125rem;overflow-x:auto;white-space:pre-wrap;word-break:break-all}.editor-layout{flex-direction:column;height:100vh}.editor-layout,.editor-main{display:flex;overflow:hidden}.editor-main{flex:1 1}.editor-sidebar-left{width:220px;flex-shrink:0}.editor-sidebar-right{width:320px;flex-shrink:0}.palette-item:hover{border-color:var(--color-primary)!important;background-color:var(--color-bg-tertiary)!important}.editor-column{flex:1 1;min-height:80px;padding:8px;border-radius:var(--radius-md);display:flex;flex-direction:column;gap:8px;transition:border-color .15s ease,background-color .15s ease}.editor-column-drop-active{border:2px dashed var(--color-primary)!important;background-color:rgba(37,99,235,.04)!important}.editable-component{position:relative;border-radius:var(--radius-sm);cursor:pointer;transition:outline-color .15s ease}.editable-component-selected{outline:2px solid var(--color-primary);outline-offset:2px}