:root{--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--bg-primary: #f8fafc;--bg-surface: #ffffff;--bg-surface-hover: #f1f5f9;--border-color: #e2e8f0;--border-focus: #3b82f6;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--brand-primary: #2563eb;--brand-primary-hover: #1d4ed8;--brand-accent: #7c3aed;--success: #16a34a;--warning: #d97706;--danger: #dc2626;--radius: 8px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .08);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .12)}[data-theme=dark]{--bg-primary: #0b0f19;--bg-surface: #121826;--bg-surface-hover: #1e293b;--border-color: rgba(255, 255, 255, .1);--border-focus: #60a5fa;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--brand-primary: #3b82f6;--brand-primary-hover: #2563eb;--brand-accent: #8b5cf6;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .4);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .5);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .6)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh;overflow:hidden;transition:background-color .2s ease,color .2s ease}#root{height:100vh;display:flex;flex-direction:column}.studio-container{display:flex;flex-direction:column;height:100vh;width:100vw;overflow:hidden;background-color:var(--bg-primary)}.studio-header{height:60px;background:var(--bg-surface);border-bottom:1px solid var(--border-color);padding:0 24px;display:flex;justify-content:space-between;align-items:center;flex-shrink:0;z-index:20;box-shadow:var(--shadow-sm);transition:background .2s ease,border-color .2s ease}.studio-brand{display:flex;align-items:center;gap:12px}.studio-logo{width:34px;height:34px;background:linear-gradient(135deg,#7c3aed,#2563eb);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:16px;box-shadow:0 2px 8px #7c3aed59}.studio-title{font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.studio-badge{font-size:11px;background:#2563eb1a;color:var(--brand-primary);border:1px solid rgba(37,99,235,.25);padding:2px 8px;border-radius:9999px;font-weight:600;letter-spacing:.04em}.studio-workspace-3pane{display:grid;grid-template-columns:280px 1fr 340px;height:calc(100vh - 60px);overflow:hidden;background-color:var(--bg-primary)}.btn{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease;border:1px solid transparent;text-decoration:none}.btn-primary{background:var(--brand-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--brand-primary-hover)}.btn-success{background:var(--success);color:#fff}.btn-success:hover:not(:disabled){filter:brightness(.9)}.btn-outline{background:var(--bg-surface);border-color:var(--border-color);color:var(--text-primary)}.btn-outline:hover:not(:disabled){background:var(--bg-surface-hover);border-color:var(--text-secondary)}.btn:disabled{opacity:.5;cursor:not-allowed}::-webkit-scrollbar{width:7px;height:7px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}