:root{--primary: #3b82f6;--primary-dark: #2563eb;--secondary: #64748b;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--bg: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text: #f8fafc;--text-secondary: #94a3b8;--border: #475569;--radius: 8px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}#app{display:flex;flex-direction:column;min-height:100vh}.header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:var(--bg-secondary);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-left{display:flex;align-items:center;gap:2rem}.logo{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--text);font-weight:700;font-size:1.25rem}.logo-icon{font-size:1.5rem}.nav{display:flex;gap:1rem}.nav-link{color:var(--text-secondary);text-decoration:none;padding:.5rem 1rem;border-radius:var(--radius);transition:all .2s}.nav-link:hover,.nav-link.active{color:var(--text);background:var(--bg-tertiary)}.header-right{display:flex;align-items:center;gap:1rem}.auth-buttons{display:flex;gap:.5rem}.btn{padding:.5rem 1rem;border-radius:var(--radius);border:none;cursor:pointer;font-size:.875rem;font-weight:500;transition:all .2s;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover{background:var(--bg-tertiary)}.btn-full{width:100%}.btn-link{background:none;border:none;color:var(--primary);cursor:pointer;padding:0}.btn-link:hover{text-decoration:underline}.btn-danger{background:var(--danger);color:#fff}.btn-success{background:var(--success);color:#fff}.user-menu{position:relative}.user-button{display:flex;align-items:center;gap:.5rem;background:var(--bg-tertiary);border:1px solid var(--border);padding:.5rem 1rem;border-radius:var(--radius);cursor:pointer;color:var(--text)}.user-dropdown{position:absolute;right:0;top:100%;margin-top:.5rem;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);min-width:180px;box-shadow:var(--shadow)}.dropdown-item{display:block;padding:.75rem 1rem;color:var(--text);text-decoration:none;width:100%;text-align:left;background:none;border:none;cursor:pointer}.dropdown-item:hover{background:var(--bg-tertiary)}.user-dropdown hr{border:none;border-top:1px solid var(--border);margin:.25rem 0}.main{flex:1;padding:2rem;max-width:1400px;margin:0 auto;width:100%}.footer{padding:2rem;background:var(--bg-secondary);border-top:1px solid var(--border);text-align:center}.footer-content{max-width:1200px;margin:0 auto}.footer p{color:var(--text-secondary);font-size:.875rem}.footer-links a{color:var(--text-secondary);text-decoration:none}.footer-links a:hover{color:var(--primary)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;z-index:200}.modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:201;width:90%;max-width:400px;max-height:90vh;overflow-y:auto}.modal-large{max-width:800px}.modal-content{background:var(--bg-secondary);border-radius:var(--radius);padding:2rem;position:relative}.modal-close{position:absolute;top:1rem;right:1rem;background:none;border:none;font-size:1.5rem;color:var(--text-secondary);cursor:pointer}.modal-close:hover{color:var(--text)}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;color:var(--text-secondary);font-size:.875rem}.form-group input,.form-group textarea,.form-group select{width:100%;padding:.75rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text);font-size:1rem}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary)}.form-error{color:var(--danger);font-size:.875rem;margin-top:.5rem}.modal-switch{text-align:center;margin-top:1rem;color:var(--text-secondary)}.hidden{display:none!important}.domain-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-top:2rem}.domain-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;cursor:pointer;transition:all .2s;text-decoration:none;color:inherit;display:block}.domain-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--primary)}.domain-icon{font-size:2rem;margin-bottom:.5rem}.domain-name{font-size:1.125rem;font-weight:600;margin-bottom:.5rem}.domain-count{color:var(--text-secondary);font-size:.875rem}.mindmap-container{width:100%;height:600px;background:var(--bg);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;position:relative}.mindmap-svg{width:100%;height:100%}.mindmap-node{cursor:pointer;transition:all .2s}.mindmap-node:hover .node-rect{stroke:var(--primary);stroke-width:2}.node-rect{fill:var(--bg-secondary);stroke:var(--border);rx:8}.node-text{fill:var(--text);font-size:14px;dominant-baseline:middle}.node-root .node-rect{fill:var(--primary)}.node-root .node-text{fill:#fff;font-weight:600}.node-link{stroke:var(--border);stroke-width:2;fill:none}.breadcrumb{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem;color:var(--text-secondary)}.breadcrumb a{color:var(--primary);text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.page-header{margin-bottom:2rem}.page-title{font-size:2rem;font-weight:700;margin-bottom:.5rem}.page-description{color:var(--text-secondary)}.search-container{max-width:600px;margin:0 auto 2rem}.search-input{width:100%;padding:1rem 1.5rem;border:1px solid var(--border);border-radius:999px;background:var(--bg-secondary);color:var(--text);font-size:1rem}.search-input:focus{outline:none;border-color:var(--primary)}.search-results{margin-top:2rem}.search-result{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;margin-bottom:1rem;cursor:pointer;transition:all .2s}.search-result:hover{border-color:var(--primary)}.search-result-title{font-weight:600;margin-bottom:.25rem}.search-result-path{color:var(--text-secondary);font-size:.875rem}.node-detail{padding:1rem 0}.node-detail-header{margin-bottom:1.5rem}.node-detail-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem}.node-detail-description{color:var(--text-secondary)}.node-section{margin-top:1.5rem}.node-section-title{font-size:1rem;font-weight:600;margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}.note-item,.link-item{background:var(--bg);border-radius:var(--radius);padding:1rem;margin-bottom:.5rem}.link-item a{color:var(--primary);text-decoration:none}.link-item a:hover{text-decoration:underline}.progress-badge{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .5rem;border-radius:999px;font-size:.75rem;font-weight:500}.progress-not_started{background:var(--bg-tertiary);color:var(--text-secondary)}.progress-in_progress{background:#f59e0b33;color:var(--warning)}.progress-completed{background:#22c55e33;color:var(--success)}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.admin-table{width:100%;border-collapse:collapse;background:var(--bg-secondary);border-radius:var(--radius);overflow:hidden}.admin-table th,.admin-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border)}.admin-table th{background:var(--bg-tertiary);font-weight:600}.admin-table tr:hover{background:var(--bg-tertiary)}.admin-actions{display:flex;gap:.5rem}.btn-sm{padding:.25rem .5rem;font-size:.75rem}.loading{display:flex;justify-content:center;align-items:center;padding:4rem}.loading:after{content:"";width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.header{flex-direction:column;gap:1rem;padding:1rem}.header-left{flex-direction:column;gap:1rem}.nav{flex-wrap:wrap;justify-content:center}.main{padding:1rem}.domain-grid{grid-template-columns:1fr}.mindmap-container{height:400px}}