:root{--bg-main:#090d16;--bg-panel:#0f172a;--bg-panel-hover:#1e293b;--bg-elevated:#1e293b;--border-subtle:#1e293b;--border-focus:#3b82f6;--border-light:#334155;--text-main:#f8fafc;--text-muted:#94a3b8;--text-faint:#64748b;--primary:#6366f1;--primary-hover:#4f46e5;--primary-glow:#6366f140;--accent-cyan:#06b6d4;--accent-emerald:#10b981;--accent-rose:#f43f5e;--accent-amber:#f59e0b;--paper-bg:#fff;--paper-shadow:0 10px 25px -5px #0006, 0 8px 10px -6px #0000004d;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;--header-height:52px;--toolbar-height:38px;--sidebar-width:250px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--bg-main);width:100%;height:100%;color:var(--text-main);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}#app{flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden}.navbar{height:var(--header-height);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);z-index:50;background:#0f172ad9;justify-content:space-between;align-items:center;padding:0 16px;display:flex}.nav-left,.nav-center,.nav-right{align-items:center;gap:10px;display:flex}.brand{letter-spacing:-.02em;color:var(--text-main);cursor:pointer;align-items:center;gap:8px;font-size:1.15rem;font-weight:700;text-decoration:none;display:flex}.brand-icon{color:#fff;width:28px;height:28px;box-shadow:0 0 12px var(--primary-glow);background:linear-gradient(135deg,#6366f1,#06b6d4);border-radius:6px;justify-content:center;align-items:center;font-size:16px;font-weight:900;display:flex}.brand-badge{color:#818cf8;text-transform:uppercase;letter-spacing:.05em;background:#6366f126;border:1px solid #6366f14d;border-radius:4px;padding:2px 6px;font-size:.65rem;font-weight:600}.project-title-wrapper{background:#1e293b99;border:1px solid #0000;border-radius:6px;align-items:center;padding:2px 8px;transition:all .15s;display:flex}.project-title-wrapper:focus-within,.project-title-wrapper:hover{border-color:var(--border-light);background:#1e293be6}.project-title-input{color:var(--text-main);background:0 0;border:none;outline:none;width:170px;font-family:inherit;font-size:.85rem;font-weight:600}.status-pill{color:var(--accent-emerald);background:#10b9811a;border:1px solid #10b98140;border-radius:9999px;align-items:center;gap:6px;padding:4px 10px;font-size:.75rem;font-weight:500;display:flex}.status-pill.error{color:var(--accent-rose);background:#f43f5e1a;border-color:#f43f5e40}.status-pill.compiling{color:var(--accent-cyan);background:#06b6d41a;border-color:#06b6d440}.pulse-dot{background-color:currentColor;border-radius:50%;width:6px;height:6px;animation:1.8s infinite pulse}@keyframes pulse{0%{opacity:.7;transform:scale(.95)}50%{opacity:1;transform:scale(1.3)}to{opacity:.7;transform:scale(.95)}}.btn{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;gap:6px;padding:6px 12px;font-family:inherit;font-size:.8rem;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 1px 3px #0000004d}.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);box-shadow:0 0 12px var(--primary-glow)}.btn-secondary{background:var(--bg-elevated);color:var(--text-main);border-color:var(--border-light)}.btn-secondary:hover{background:#334155;border-color:#475569}.btn-ghost{color:var(--text-muted);background:0 0}.btn-ghost:hover{color:var(--text-main);background:#ffffff0f}.btn-icon{border-radius:6px;width:32px;height:32px;padding:0}.workspace{flex:1;display:flex;position:relative;overflow:hidden}.sidebar{width:var(--sidebar-width);border-right:1px solid var(--border-subtle);z-index:20;background:#0b1120;flex-direction:column;transition:width .2s,transform .2s;display:flex}.sidebar.collapsed{border-right:none;width:0;transform:translate(-100%)}.sidebar-tabs{border-bottom:1px solid var(--border-subtle);background:#0f172a80;display:flex}.sidebar-tab{text-align:center;color:var(--text-muted);cursor:pointer;border-bottom:2px solid #0000;flex:1;justify-content:center;align-items:center;gap:5px;padding:10px 0;font-size:.75rem;font-weight:600;transition:all .15s;display:flex}.sidebar-tab:hover{color:var(--text-main);background:#ffffff05}.sidebar-tab.active{color:#818cf8;border-bottom-color:var(--primary);background:#6366f10d}.sidebar-content{flex:1;padding:12px;overflow-y:auto}.sidebar-section-title{text-transform:uppercase;letter-spacing:.05em;color:var(--text-faint);justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.7rem;font-weight:700;display:flex}.file-item{color:var(--text-muted);cursor:pointer;border-radius:6px;justify-content:space-between;align-items:center;margin-bottom:2px;padding:6px 10px;font-size:.8rem;transition:all .15s;display:flex}.file-item:hover{color:var(--text-main);background:#ffffff0d}.file-item.active{color:#a5b4fc;background:#6366f11f;font-weight:600}.file-item-left{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:8px;display:flex;overflow:hidden}.file-actions{gap:4px;display:none}.file-item:hover 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var(--toolbar-height));flex:1;overflow:hidden}.cm-editor{height:100%;font-family:var(--font-mono)!important;font-size:13.5px!important;line-height:1.6!important}.cm-scroller{overflow:auto;font-family:var(--font-mono)!important}.diagnostics-bar{backdrop-filter:blur(8px);color:#fff;z-index:10;background:#e11d48f2;border-radius:6px;justify-content:space-between;align-items:center;padding:8px 14px;font-size:.8rem;animation:.15s ease-out slideUp;display:none;position:absolute;bottom:12px;left:12px;right:12px;box-shadow:0 4px 15px #0000004d}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.diagnostics-bar.visible{display:flex}.splitter{background:var(--border-subtle);cursor:col-resize;width:6px;transition:background .15s;position:relative}.splitter:hover,.splitter.active{background:var(--primary);box-shadow:0 0 8px var(--primary-glow)}.preview-container{background:#1e293b;flex-direction:column;flex:1;min-width:320px;display:flex}.preview-toolbar{height:var(--toolbar-height);border-bottom:1px solid var(--border-subtle);background:#0f172a;justify-content:space-between;align-items:center;padding:0 12px;font-size:.8rem;display:flex}.zoom-controls{align-items:center;gap:6px;display:flex}.zoom-level-text{color:var(--text-muted);text-align:center;min-width:45px;font-size:.75rem;font-weight:600}.preview-viewport{background:#0b101b;flex-direction:column;flex:1;align-items:center;gap:24px;padding:30px;display:flex;overflow:auto}.paper-sheet{background:var(--paper-bg);box-shadow:var(--paper-shadow);color:#000;transform-origin:top;border-radius:3px;width:100%;min-width:480px;max-width:840px;transition:transform .15s;overflow:hidden}.paper-sheet svg{display:block;width:100%!important;height:auto!important}.preview-loading{height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;font-size:.9rem;display:flex}.mobile-view-tabs{border-top:1px solid var(--border-subtle);background:#0f172a;justify-content:space-around;align-items:center;height:44px;display:none}.mobile-tab-btn{height:100%;color:var(--text-muted);background:0 0;border:none;flex:1;justify-content:center;align-items:center;gap:6px;font-size:.85rem;font-weight:600;display:flex}.mobile-tab-btn.active{color:#818cf8;background:#6366f11a}.modal-overlay{backdrop-filter:blur(6px);z-index:100;background:#000000b3;justify-content:center;align-items:center;display:none;position:fixed;inset:0}.modal-overlay.open{display:flex}.modal-dialog{border:1px solid var(--border-light);background:#0f172a;border-radius:12px;flex-direction:column;width:90%;max-width:620px;max-height:85vh;animation:.18s cubic-bezier(.16,1,.3,1) 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var(--border-subtle);justify-content:space-between;align-items:center;padding:14px 18px;display:flex}.drawer-content{flex:1;padding:18px;overflow-y:auto}.cheat-table{border-collapse:collapse;width:100%;margin-bottom:16px;font-size:.76rem}.cheat-table th,.cheat-table td{border:1px solid var(--border-subtle);text-align:left;padding:6px 10px}.cheat-table th{color:var(--text-main);background:#1e293bcc;font-weight:600}.cheat-table td code{font-family:var(--font-mono);color:#38bdf8;background:#0000004d;border-radius:3px;padding:1px 4px}.form-group{margin-bottom:14px}.form-label{color:var(--text-muted);margin-bottom:6px;font-size:.78rem;font-weight:600;display:block}.form-input,.form-textarea{border:1px solid var(--border-light);width:100%;color:var(--text-main);background:#1e293bb3;border-radius:6px;outline:none;padding:8px 12px;font-family:inherit;font-size:.82rem;transition:border-color 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