:root{color-scheme:light;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #eff6ff;--bg-app: #f3f4f6;--bg-panel: #ffffff;--text-main: #111827;--text-muted: #6b7280;--border-color: #e5e7eb;--radius-sm: 4px;--radius-md: 8px;--shadow-canvas: 0 18px 36px rgba(17, 24, 39, .12);--shadow-popover: 0 10px 24px rgba(17, 24, 39, .16);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--text-main);background:var(--bg-app)}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}.app-shell{display:flex;min-width:1200px;height:100vh;flex-direction:column;overflow:hidden}.toolbar{display:flex;height:64px;flex:0 0 64px;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-color);background:#ffffffeb;padding:0 16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:32px;height:32px;border-radius:7px;background:linear-gradient(135deg,#1d4ed8 0,#1d4ed8 50%,#38bdf8 50%,#38bdf8);box-shadow:inset 0 0 0 1px #fff6}.brand strong,.brand span{display:block}.brand span{margin-top:2px;color:var(--text-muted);font-size:12px}.toolbar-actions{display:flex;align-items:center;gap:10px}.icon-button,.ghost-button,.primary-button,.danger-button{display:inline-flex;min-height:38px;align-items:center;justify-content:center;gap:8px;border:1px solid #cfd6e1;border-radius:var(--radius-md);background:#fff;color:#111827;padding:0 14px;transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s 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