:root{--bg-primary:#09090b;--bg-secondary:#18181b;--bg-tertiary:#27272a;--bg-hover:#2a2a2e;--bg-card:#131316;--bg-card-hover:#1c1c20;--border:#27272a;--border-subtle:#1e1e22;--border-hover:#3f3f46;--text-primary:#fafafa;--text-secondary:#a1a1aa;--text-tertiary:#71717a;--accent:#6d5cff;--accent-hover:#7d6eff;--accent-subtle:#6d5cff1f;--danger:#ef4444;--danger-hover:#dc2626;--danger-subtle:#ef44441f;--success:#22c55e;--success-subtle:#22c55e1f;--warning:#f59e0b;--warning-subtle:#f59e0b1f;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow:0 0 20px #6d5cff26;--topbar-bg:#09090bd9;--transition-fast:.15s cubic-bezier(.4,0,.2,1);--transition-base:.25s cubic-bezier(.4,0,.2,1);--transition-slow:.4s cubic-bezier(.4,0,.2,1)}[data-theme=light]{--bg-primary:#f8f9fb;--bg-secondary:#fff;--bg-tertiary:#f0f1f3;--bg-hover:#e8e9ec;--bg-card:#fff;--bg-card-hover:#f5f6f8;--border:#e2e4e8;--border-subtle:#ecedf0;--border-hover:#c8cad0;--text-primary:#111318;--text-secondary:#5a5d65;--text-tertiary:#8b8e96;--shadow-sm:0 1px 2px #0000000f;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 32px #0000001a;--topbar-bg:#f8f9fbd9}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;direction:rtl;font-size:16px}body{background:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;overflow-x:hidden}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}input,textarea,select{font-family:inherit}a{color:inherit;text-decoration:none}.app-layout{min-height:100vh;display:flex}.sidebar{background:var(--bg-secondary);border-left:1px solid var(--border);z-index:100;width:260px;min-width:260px;transition:transform var(--transition-base);border-right:none;flex-direction:column;padding:0;display:flex;position:fixed;top:0;bottom:0;right:0}.sidebar-header{border-bottom:1px solid var(--border-subtle);padding:24px 20px 20px}.sidebar-logo{align-items:center;gap:10px;display:flex}.sidebar-logo-icon{background:linear-gradient(135deg, var(--accent), #a78bfa);border-radius:var(--radius-sm);color:#fff;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;font-weight:700;display:flex}.sidebar-logo-text{letter-spacing:-.3px;font-size:16px;font-weight:600}.sidebar-search{margin:16px 16px 8px;position:relative}.sidebar-search input{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);transition:border-color var(--transition-fast);outline:none;padding:9px 36px 9px 12px;font-size:13px}.sidebar-search input::placeholder{color:var(--text-tertiary)}.sidebar-search input:focus{border-color:var(--accent)}.sidebar-search-icon{color:var(--text-tertiary);pointer-events:none;font-size:13px;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.sidebar-nav{flex:1;padding:8px;overflow-y:auto}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-track{background:0 0}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.sidebar-section-label{text-transform:uppercase;letter-spacing:.8px;color:var(--text-tertiary);padding:16px 12px 8px;font-size:11px;font-weight:600}.sidebar-item{border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition-fast);cursor:pointer;text-align:left;align-items:center;gap:10px;width:100%;padding:8px 12px;font-size:13px;font-weight:400;display:flex}.sidebar-item:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-item.active{background:var(--accent-subtle);color:var(--accent-hover);font-weight:500}.sidebar-item-icon{flex-shrink:0;justify-content:center;align-items:center;width:18px;height:18px;font-size:15px;display:flex}.sidebar-item-count{color:var(--text-tertiary);background:var(--bg-tertiary);border-radius:10px;margin-left:0;margin-right:auto;padding:2px 7px;font-size:11px;font-weight:500}.sidebar-footer{border-top:1px solid var(--border-subtle);padding:16px}.sidebar-add-btn{background:var(--accent);color:#fff;border-radius:var(--radius-sm);width:100%;transition:all var(--transition-fast);justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-size:13px;font-weight:500;display:flex}.sidebar-add-btn:hover{background:var(--accent-hover);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.main-content{flex-direction:column;flex:1;min-height:100vh;margin-left:0;margin-right:260px;display:flex}.topbar{border-bottom:1px solid var(--border);background:var(--bg-primary);z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:var(--topbar-bg);align-items:center;height:56px;padding:0 32px;display:flex;position:sticky;top:0}.topbar-title{color:var(--text-secondary);font-size:14px;font-weight:500}.topbar-title span{color:var(--text-tertiary);margin:0 8px}.topbar-title strong{color:var(--text-primary);font-weight:600}.topbar-actions{align-items:center;gap:8px;margin-left:0;margin-right:auto;display:flex}.topbar-btn{border-radius:var(--radius-sm);transition:all var(--transition-fast);border:1px solid var(--border);color:var(--text-secondary);align-items:center;gap:6px;padding:7px 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var(--border);border-radius:var(--radius-xl);width:100%;max-width:520px;box-shadow:var(--shadow-lg);transition:transform var(--transition-base);padding:0;overflow:hidden;transform:scale(.95)translateY(10px)}.modal-overlay.visible .modal{transform:scale(1)translateY(0)}.modal-header{justify-content:space-between;align-items:center;padding:24px 28px 0;display:flex}.modal-header h2{letter-spacing:-.3px;font-size:18px;font-weight:600}.modal-close{border-radius:var(--radius-sm);width:32px;height:32px;color:var(--text-tertiary);transition:all var(--transition-fast);justify-content:center;align-items:center;font-size:18px;display:flex}.modal-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.modal-body{padding:24px 28px}.form-group{margin-bottom:20px}.form-group label{color:var(--text-secondary);margin-bottom:8px;font-size:13px;font-weight:500;display:block}.form-group input,.form-group textarea,.form-group select{background:var(--bg-tertiary);border:1px solid 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var(--transition-fast);padding:6px;position:fixed;transform:scale(.95)}.context-menu.visible{opacity:1;pointer-events:all;transform:scale(1)}.context-menu-item{border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition-fast);text-align:left;align-items:center;gap:10px;width:100%;padding:9px 12px;font-size:13px;display:flex}.context-menu-item:hover{background:var(--bg-hover);color:var(--text-primary)}.context-menu-item.danger{color:var(--danger)}.context-menu-item.danger:hover{background:var(--danger-subtle);color:var(--danger)}.context-menu-divider{background:var(--border);height:1px;margin:4px 8px}.delete-confirm-body{text-align:center;padding:8px 0 0}.delete-confirm-body .delete-icon{background:var(--danger-subtle);width:56px;height:56px;color:var(--danger);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 16px;font-size:24px;display:flex}.delete-confirm-body p{color:var(--text-secondary);font-size:14px;line-height:1.6}.delete-confirm-body strong{color:var(--text-primary)}.empty-state{text-align:center;padding:80px 40px}.empty-state-icon{background:var(--bg-tertiary);width:80px;height:80px;color:var(--text-tertiary);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 20px;font-size:32px;display:flex}.empty-state h3{margin-bottom:8px;font-size:18px;font-weight:600}.empty-state p{color:var(--text-tertiary);margin-bottom:24px;font-size:14px}.toast-container{z-index:3000;flex-direction:column;gap:8px;display:flex;position:fixed;bottom:24px;right:24px}.toast{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);transition:transform var(--transition-base);align-items:center;gap:10px;min-width:280px;padding:14px 20px;font-size:13px;display:flex;transform:translate(120%)}.toast.visible{transform:translate(0)}.toast-icon{flex-shrink:0;font-size:16px}.toast.success .toast-icon{color:var(--success)}.toast.error .toast-icon{color:var(--danger)}.workspace-page{flex-direction:column;flex:1;display:flex;overflow:hidden}.back-btn{border-radius:var(--radius-sm);width:32px;height:32px;color:var(--text-secondary);transition:all var(--transition-fast);border:1px solid var(--border);flex-shrink:0;justify-content:center;align-items:center;font-size:16px;display:flex}.back-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-project-info{border-top:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:16px;display:flex}.sidebar-project-date{color:var(--text-tertiary);font-size:11px}.canvas-workspace{flex-direction:column;flex:1;display:flex;overflow:hidden}.canvas-toolbar{border-bottom:1px solid 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h3{color:var(--text-secondary);margin-bottom:4px;font-size:20px;font-weight:600}.gallery-empty p{font-size:14px}.gallery-split{gap:16px;height:100%;min-height:500px;display:flex}.gallery-hero{border-radius:var(--radius-lg);background:var(--bg-tertiary);cursor:pointer;width:50%;min-width:0;position:relative;overflow:hidden}.gallery-hero img{object-fit:cover;width:100%;height:100%;transition:transform .3s;display:block}.gallery-hero:hover img{transform:scale(1.02)}.gallery-item-delete{color:#fff;opacity:0;width:28px;height:28px;transition:opacity var(--transition-fast);cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009;border-radius:50%;justify-content:center;align-items:center;font-size:12px;display:flex;position:absolute;top:12px;right:12px}.gallery-hero:hover .gallery-item-delete{opacity:1}.gallery-thumbs{flex-direction:column;flex:1;gap:12px;min-width:200px;display:flex;overflow-y:auto}.gallery-card{border-radius:var(--radius-md);background:var(--bg-tertiary);cursor:pointer;flex-shrink:0;position:relative;overflow:hidden}.gallery-card img{object-fit:cover;width:100%;height:160px;transition:transform .3s;display:block}.gallery-card:hover img{transform:scale(1.05)}.gallery-card-actions{opacity:0;transition:opacity var(--transition-fast);gap:6px;display:flex;position:absolute;top:8px;right:8px}.gallery-card:hover .gallery-card-actions{opacity:1}.gallery-action-btn{color:#fff;cursor:pointer;width:26px;height:26px;transition:background var(--transition-fast);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000008c;border-radius:50%;justify-content:center;align-items:center;font-size:11px;display:flex}.gallery-action-btn:hover{background:#000c}.gallery-action-btn.danger:hover{background:var(--danger)}.lightbox{z-index:9999;cursor:zoom-out;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#000000d9;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.lightbox img{border-radius:var(--radius-md);object-fit:contain;max-width:90vw;max-height:90vh;box-shadow:0 24px 80px #00000080}.sitemap-area{min-height:500px}.sitemap-svg{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.sitemap-svg path,.sitemap-svg polygon{pointer-events:all}.sitemap-line{stroke:var(--accent);stroke-width:2px}.sitemap-arrow{fill:var(--accent)}.sitemap-node{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius-md);cursor:grab;-webkit-user-select:none;user-select:none;text-align:center;min-width:120px;box-shadow:var(--shadow-sm);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);padding:14px 20px;position:absolute}.sitemap-node:active{cursor:grabbing}.sitemap-node:hover{border-color:var(--accent);box-shadow:var(--shadow-md)}.sitemap-node.connect-source{border-color:var(--success);box-shadow:0 0 12px #22c55e4d}.sitemap-node-label{cursor:text;outline:none;font-size:14px;font-weight:600}.sitemap-node-label:focus{color:var(--accent)}.specs-workspace{flex:1;display:flex;overflow:hidden}.specs-sidebar{background:var(--bg-secondary);border-left:1px solid var(--border);flex-shrink:0;width:300px;min-width:300px;padding:24px 20px;overflow-y:auto}.specs-sidebar-title{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px;font-size:13px;font-weight:600}.specs-summary{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;min-height:180px;color:var(--text-primary);resize:vertical;outline:none;padding:12px;font-family:inherit;font-size:13px;line-height:1.6}.specs-summary:focus{border-color:var(--accent)}.specs-summary::placeholder{color:var(--text-tertiary)}.specs-file-preview{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:8px;padding:10px 14px;display:flex}.specs-file-icon{flex-shrink:0;font-size:18px}.specs-file-name{text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13px;overflow:hidden}.specs-file-remove{width:20px;height:20px;color:var(--text-tertiary);transition:all var(--transition-fast);border-radius:50%;justify-content:center;align-items:center;font-size:10px;display:flex}.specs-file-remove:hover{background:var(--danger-subtle);color:var(--danger)}.specs-upload-btn{background:var(--bg-tertiary);border:2px dashed var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--transition-fast);cursor:pointer;align-items:center;gap:8px;width:100%;padding:10px 16px;font-size:13px;display:flex}.specs-upload-btn:hover{border-color:var(--accent);color:var(--accent)}.specs-main{flex-direction:column;flex:1;display:flex;overflow:hidden}.specs-tabs{border-bottom:1px solid var(--border);background:var(--bg-secondary);flex-wrap:wrap;flex-shrink:0;align-items:center;gap:2px;padding:8px 16px;display:flex}.specs-tab{border-radius:var(--radius-sm) var(--radius-sm) 0 0;color:var(--text-tertiary);transition:all var(--transition-fast);border-bottom:2px solid #0000;align-items:center;gap:6px;padding:8px 16px;font-size:13px;font-weight:500;display:flex}.specs-tab:hover{color:var(--text-secondary);background:var(--bg-hover)}.specs-tab.active{color:var(--text-primary);border-bottom-color:var(--accent);background:var(--bg-primary)}.specs-tab.add-tab{color:var(--text-tertiary);padding:6px 12px;font-size:16px}.specs-tab.add-tab:hover{color:var(--accent)}.specs-tab-name{cursor:text;color:inherit;font:inherit;text-align:center;background:0 0;border:none;outline:none;width:80px;padding:0;font-size:13px;font-weight:500}.specs-tab-delete{color:var(--text-tertiary);opacity:0;transition:opacity var(--transition-fast);border-radius:50%;justify-content:center;align-items:center;width:16px;height:16px;font-size:10px;display:flex}.specs-tab:hover .specs-tab-delete{opacity:1}.specs-tab-delete:hover{background:var(--danger-subtle);color:var(--danger)}.specs-editor{background:var(--bg-primary);color:var(--text-primary);resize:none;border:none;outline:none;flex:1;padding:24px 32px;font-family:inherit;font-size:14px;line-height:1.8}.specs-editor::placeholder{color:var(--text-tertiary)}.specs-empty{color:var(--text-tertiary);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;display:flex}.specs-empty h3{color:var(--text-secondary);font-size:18px;font-weight:600}.specs-empty p{font-size:14px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:fadeInUp var(--transition-base) forwards}.projects-grid .project-card,.projects-grid .add-project-card{animation:fadeInUp var(--transition-base) forwards;opacity:0}.projects-grid>:first-child{animation-delay:0s}.projects-grid>:nth-child(2){animation-delay:50ms}.projects-grid>:nth-child(3){animation-delay:.1s}.projects-grid>:nth-child(4){animation-delay:.15s}.projects-grid>:nth-child(5){animation-delay:.2s}.projects-grid>:nth-child(6){animation-delay:.25s}.projects-grid>:nth-child(7){animation-delay:.3s}.projects-grid>:nth-child(8){animation-delay:.35s}.projects-grid>:nth-child(9){animation-delay:.4s}.projects-grid>:nth-child(10){animation-delay:.45s}.login-page{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;display:flex;position:relative;overflow:hidden}.login-page:before{content:"";pointer-events:none;background:radial-gradient(circle,#6d5cff1f 0%,#0000 70%);width:600px;height:600px;position:absolute;top:-200px;right:-100px}.login-page:after{content:"";pointer-events:none;background:radial-gradient(circle,#a78bfa14 0%,#0000 70%);width:500px;height:500px;position:absolute;bottom:-150px;left:-100px}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xl);width:100%;max-width:420px;box-shadow:var(--shadow-lg);z-index:1;animation:fadeInUp var(--transition-slow) forwards;padding:48px 40px;position:relative}.login-card-logo{justify-content:center;align-items:center;gap:12px;margin-bottom:32px;display:flex}.login-card-logo .sidebar-logo-icon{width:44px;height:44px;font-size:18px}.login-card-logo .sidebar-logo-text{font-size:22px;font-weight:700}.login-card h2{text-align:center;letter-spacing:-.4px;margin-bottom:6px;font-size:22px;font-weight:700}.login-card .login-subtitle{color:var(--text-tertiary);text-align:center;margin-bottom:32px;font-size:14px}.login-card .form-group{margin-bottom:18px}.login-card .btn-primary{width:100%;margin-top:8px;padding:12px;font-size:14px}.login-error{background:var(--danger-subtle);color:var(--danger);border-radius:var(--radius-sm);text-align:center;margin-bottom:16px;padding:10px 14px;font-size:13px;display:none}.login-error.visible{display:block}.login-footer{text-align:center;color:var(--text-tertiary);margin-top:24px;font-size:13px}.login-footer a{color:var(--accent);cursor:pointer;font-weight:500}.login-footer a:hover{color:var(--accent-hover);text-decoration:underline}.logo-upload-zone{border:2px dashed var(--border);border-radius:var(--radius-md);cursor:pointer;width:80px;height:80px;transition:all var(--transition-fast);background:var(--bg-tertiary);flex-direction:column;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.logo-upload-zone:hover{border-color:var(--accent);background:var(--accent-subtle)}.logo-upload-zone img{object-fit:contain;width:100%;height:100%}.logo-upload-zone .upload-placeholder{color:var(--text-tertiary);font-size:24px;line-height:1}.logo-upload-zone .upload-label{color:var(--text-tertiary);margin-top:2px;font-size:9px}.logo-upload-zone input[type=file]{opacity:0;cursor:pointer;position:absolute;inset:0}.user-avatar-btn{background:linear-gradient(135deg, var(--accent), #a78bfa);color:#fff;cursor:pointer;width:32px;height:32px;transition:all var(--transition-fast);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.user-avatar-btn:hover{box-shadow:var(--shadow-glow);transform:scale(1.08)}.settings-group{margin-bottom:24px}.settings-group-title{text-transform:uppercase;letter-spacing:.8px;color:var(--text-tertiary);margin-bottom:12px;font-size:11px;font-weight:600}.settings-row{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:12px 0;display:flex}.settings-row:last-child{border-bottom:none}.settings-row-label{font-size:14px;font-weight:500}.settings-row-desc{color:var(--text-tertiary);margin-top:2px;font-size:12px}.toggle{background:var(--bg-tertiary);border:1px solid var(--border);cursor:pointer;width:44px;height:24px;transition:all var(--transition-fast);border-radius:12px;flex-shrink:0;position:relative}.toggle.active{background:var(--accent);border-color:var(--accent)}.toggle:after{content:"";width:18px;height:18px;transition:transform var(--transition-fast);background:#fff;border-radius:50%;position:absolute;top:2px;left:2px}.toggle.active:after{transform:translate(20px)}.theme-options{gap:6px;display:flex}.theme-option{border-radius:var(--radius-sm);color:var(--text-secondary);border:1px solid var(--border);transition:all var(--transition-fast);padding:6px 14px;font-size:13px;font-weight:500}.theme-option:hover{border-color:var(--border-hover);color:var(--text-primary)}.theme-option.active{background:var(--accent);border-color:var(--accent);color:#fff}@media (width<=1024px){.stats-row{grid-template-columns:repeat(2,1fr)}}@media (width<=768px){.sidebar{transform:translate(100%)}.sidebar.open{transform:translate(0)}.main-content{margin-right:0}.stats-row,.projects-grid{grid-template-columns:1fr}.page-content{padding:20px}.login-card{margin:20px;padding:32px 24px}}