@import"https://fonts.googleapis.com/css2?family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap";.App{width:100%;min-height:100vh;background-color:var(--gray-50)}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-lg)}.card{background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-lg);box-shadow:var(--glass-shadow);border:1px solid var(--glass-border);transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--gradient-primary);opacity:0;transition:opacity .4s ease}.card:hover{box-shadow:var(--shadow-lg);border-color:var(--glass-border);transform:translateY(-4px)}.card:hover:before{opacity:1}.profile-button{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm);background:transparent;border:1px solid var(--gray-200);border-radius:var(--radius-lg);cursor:pointer;transition:all .3s ease}.profile-button:hover{background:var(--gray-50);border-color:var(--gray-300);box-shadow:var(--shadow-sm)}.profile-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary-500),var(--primary-600));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:var(--text-sm);box-shadow:var(--shadow-sm)}.profile-name{font-weight:500;color:var(--gray-700);font-size:var(--text-sm)}.dropdown-arrow{color:var(--gray-400);font-size:16px;font-weight:700;transition:color .3s ease}.profile-button:hover .dropdown-arrow{color:var(--gray-600)}.profile-dropdown{position:absolute;bottom:calc(100% + var(--space-sm));right:0;min-width:280px;background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:1000;padding:var(--space-sm);animation:fadeInDown .3s ease}@keyframes 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var(--gray-200);position:relative;transition:all .3s ease;z-index:100}.sidebar.closed{width:60px;min-width:60px;overflow:visible;border-right:1px solid var(--gray-200)}.sidebar.closed .sidebar-footer-collapsed{overflow:visible}.sidebar.closed .user-profile-collapsed .profile-dropdown{right:0}.sidebar.closed .sidebar-content{display:none}.sidebar.open{width:280px}.sidebar-header{padding:var(--space-lg);display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}.sidebar-header-actions{display:flex;align-items:center;gap:var(--space-sm)}.new-diagram-section{padding:0px var(--space-lg) var(--space-md) var(--space-lg);border-bottom:1px solid var(--gray-200)}.sidebar-header-collapsed{padding:var(--space-lg);border-bottom:1px solid 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var(--gray-200);padding:var(--space-lg)}.quota-info{margin-bottom:var(--space-md)}.quota-bar{width:100%;height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden;margin-bottom:var(--space-sm)}.quota-used{height:100%;background:linear-gradient(90deg,var(--primary-dark),var(--primary));transition:width .3s ease}.quota-text{font-size:var(--text-xs);color:var(--gray-500);margin:0 0 var(--space-sm) 0}.upgrade-btn{width:100%;padding:4px 8px;background:linear-gradient(135deg,var(--primary-dark),var(--primary));border:none;border-radius:var(--radius-sm);color:#fff;font-weight:500;font-size:13px;cursor:pointer;transition:all .3s ease}.upgrade-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.user-profile{position:relative}.profile-button{display:flex;align-items:center;gap:var(--space-sm);width:100%;padding:var(--space-md);background:var(--gray-200);border:1px solid var(--gray-400);border-radius:var(--radius-lg);cursor:pointer;transition:all .3s ease}.profile-button:hover{background:var(--gray-200);border-color:var(--gray-400)}.profile-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;overflow:hidden;position:relative;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:var(--text-sm);flex-shrink:0}.profile-avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}.profile-info{flex:1;text-align:left;min-width:0}.profile-name{display:block;font-weight:500;color:#fff;font-size:var(--text-sm);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-email{display:block;font-size:var(--text-xs);color:var(--gray-500);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-dropdown{position:absolute;bottom:calc(100% + var(--space-sm));left:0;right:0;background:var(--gray-200);border:1px solid var(--gray-400);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:1000;padding:var(--space-sm);animation:fadeInUp .3s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.dropdown-divider{margin:var(--space-sm) 0;border:none;height:1px;background:var(--gray-300)}.dropdown-icon{font-size:var(--text-sm);opacity:.7}.dropdown-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:999;background:transparent}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--gray-50)}.sidebar-toggle-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .3s ease;padding:0}.sidebar-toggle-btn:hover{background:var(--gray-100);box-shadow:var(--shadow-sm)}.sidebar-toggle-btn .minimize-icon{color:var(--primary)!important;font-size:24px}.sidebar-toggle-btn-collapsed .minimize-icon{color:var(--primary)!important;font-size:20px}.floating-toggle-btn{position:fixed;top:var(--space-lg);left:var(--space-lg);z-index:1000;display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:50%;cursor:pointer;transition:all .3s ease;padding:0;box-shadow:var(--shadow-lg)}.floating-toggle-btn:hover{background:var(--primary-50);border-color:var(--primary-200);box-shadow:var(--shadow-xl);transform:scale(1.05)}.floating-toggle-btn .menu-icon{font-size:24px;color:var(--text-primary)}.floating-toggle-btn:hover .menu-icon{color:var(--primary-600)}@media (max-width: 768px){.sidebar{width:280px;position:fixed;top:0;left:0;z-index:1000;transform:translate(-100%);transition:transform .3s 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var(--gray-200)}.activity-item:last-child{border-bottom:none}.activity-icon{font-size:var(--text-lg)}.activity-time{font-size:var(--text-xs);color:var(--gray-500);margin-top:4px}.editor-page{height:100%;display:flex;flex-direction:column}.editor-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-lg) var(--space-xl);border-bottom:1px solid var(--border-color);background:var(--surface-color);gap:var(--space-lg)}.editor-title{flex:1}.editor-title h1{font-size:var(--text-2xl);font-weight:700;color:var(--text-primary);margin:0;letter-spacing:-.02em}.editor-meta{display:flex;align-items:center;flex-shrink:0}.diagram-id{font-size:var(--text-md);color:var(--text-secondary);font-weight:500;background:var(--glass-bg);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-sm)}.action-button{padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);font-weight:500;cursor:pointer;transition:all .3s ease;border:1px solid transparent}.action-button.secondary{background:var(--gray-200);color:var(--text-primary);border-color:var(--border-color)}.action-button.secondary:hover{background:var(--gray-300);border-color:var(--border-color-hover)}.editor-content{flex:1;display:flex;overflow:hidden;gap:var(--space-md);padding:var(--space-md);background:var(--gray-50)}.editor-tools{width:280px;background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);display:flex;flex-direction:column;box-shadow:var(--glass-shadow);overflow:hidden;max-height:100vh}.tools-section{padding:var(--space-md);border-bottom:1px solid 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var(--gray-300);margin:var(--space-lg);border-radius:var(--radius-lg)}.placeholder-content{text-align:center;color:var(--text-secondary)}.placeholder-content h2{font-size:var(--text-xl);margin:0 0 var(--space-sm) 0;color:var(--text-primary)}.placeholder-content p{margin:var(--space-xs) 0}.diagram-info{color:var(--primary-600)!important;font-weight:500!important}@media (max-width: 1024px){.welcome-section{grid-template-columns:1fr}.editor-tools{width:240px}.tool-grid{grid-template-columns:1fr}.editor-header{flex-wrap:wrap;gap:var(--space-sm)}.editor-meta{order:3;width:100%;justify-content:center}.action-button{padding:var(--space-xs) var(--space-sm);font-size:var(--text-xs)}}.sidebar.closed~.main-content .dashboard-content{max-width:calc(100vw - 60px)}@media (max-width: 1024px){.dashboard-content{max-width:calc(100vw - 60px)}.quick-actions{grid-template-columns:1fr}.features-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}}@media (max-width: 768px){.dashboard-page{padding:0}.dashboard-header{padding:var(--space-lg) var(--space-md)}.header-text h1{font-size:24px}.header-text p{font-size:16px}.dashboard-content{padding:var(--space-lg) var(--space-md);gap:var(--space-xl);max-width:100vw}.welcome-card,.features-card{padding:var(--space-lg)}.card-header h2{font-size:24px}.quick-actions{grid-template-columns:1fr;gap:var(--space-lg)}.action-item{padding:var(--space-lg);flex-direction:column;text-align:center;gap:var(--space-md)}.action-icon{width:40px;height:40px;font-size:24px}.features-grid{grid-template-columns:1fr;gap:var(--space-md)}.feature-item{padding:var(--space-md);flex-direction:column;text-align:center;gap:var(--space-sm)}.feature-icon{width:36px;height:36px;font-size:20px}.mcp-steps{grid-template-columns:1fr;gap:var(--space-lg)}.mcp-step{flex-direction:column;text-align:center;gap:var(--space-md)}.step-number{width:36px;height:36px;font-size:16px}}.badge{display:inline-flex;align-items:center;padding:var(--space-xs) 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var(--border-color)}.terminal-dot{width:12px;height:12px;border-radius:50%;background:var(--error);box-shadow:0 0 8px var(--error);animation:pulse 2s infinite}.terminal-dot.warning{background:var(--warning);box-shadow:0 0 8px var(--warning)}.terminal-dot.success{background:var(--success);box-shadow:0 0 8px var(--success)}@keyframes 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p{color:var(--error);font-size:var(--text-lg);margin:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-40px;left:6px;background:var(--primary);color:#fff;padding:var(--space-sm) var(--space-md);text-decoration:none;border-radius:var(--radius-sm);z-index:1000;transition:top .3s ease;font-weight:600;font-size:var(--text-sm)}.skip-link:focus{top:6px;outline:2px solid var(--primary-light);outline-offset:2px}*:focus{outline:2px solid var(--primary);outline-offset:2px}*:focus:not(:focus-visible){outline:none}*:focus-visible{outline:2px solid var(--primary);outline-offset:2px}@media (prefers-contrast: high){:root{--border-color: rgba(255, 255, 255, .3);--text-secondary: #ffffff;--text-tertiary: #e5e7eb}.card,.diagram-card,.palette-button,button{border:2px solid 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