:root{--radius: 12px}html.dark{--bg: #0b0f1a;--bg-elev: #131a2a;--bg-elev-2: #1b2436;--border: #26314a;--text: #e6ebf5;--text-dim: #9aa7c2;--accent: #6ea8fe;--accent-2: #7ee0c0;--online: #6ea8fe;--local: #f5a97f;--danger: #f38ba8;--success: #a6e3a1;--shadow: 0 8px 30px rgba(0, 0, 0, .35)}html.light{--bg: #f6f8fc;--bg-elev: #ffffff;--bg-elev-2: #eef3f9;--border: #d6deeb;--text: #1f2937;--text-dim: #6b7280;--accent: #2563eb;--accent-2: #14b8a6;--online: #2563eb;--local: #ea580c;--danger: #dc2626;--success: #16a34a;--shadow: 0 8px 20px rgba(0, 0, 0, .08)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;margin:0}html.dark body{background:radial-gradient(1200px 800px at 80% -10%,#16203a 0%,var(--bg) 55%),var(--bg)}body{color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe 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600px){.grid.cols-4{grid-template-columns:repeat(1,minmax(0,1fr))}}.dropdown{position:relative;width:100%}.dropdown-button{width:100%;height:42px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elev);color:var(--text);display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-size:14px;font-weight:500;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}.dropdown-button:hover{border-color:var(--accent)}.dropdown-button:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 20%,transparent)}.arrow{font-size:12px;color:var(--text-dim);transition:transform .2s ease}.arrow.up{transform:rotate(180deg)}.dropdown-menu{position:absolute;z-index:1000;top:calc(100% + 6px);left:0;right:0;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;animation:dropdownFade .15s ease}.dropdown-item{padding:10px 14px;color:var(--text);background:transparent;cursor:pointer;font-size:14px;transition:background .15s ease,color .15s ease}.dropdown-item:hover{background:var(--bg-elev-2);color:var(--accent)}.dropdown-item.active{background:color-mix(in srgb,var(--accent) 15%,transparent);color:var(--accent);font-weight:600}.dropdown-item:first-child{border-radius:var(--radius) var(--radius) 0 0}.dropdown-item:last-child{border-radius:0 0 var(--radius) var(--radius)}@keyframes dropdownFade{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.nav-section-header{display:block}.nav-section-header .nav-link{width:100%;min-width:0;display:flex;align-items:center;gap:10px;padding:10px 10px 10px 12px;border:1px solid transparent;border-radius:10px;background:var(--bg-elev-1);color:var(--text);text-decoration:none;font-weight:500;transition:background .15s ease,border-color .15s ease,color .15s ease}.nav-section-header .nav-link{background:var(--bg-elev-2);border-color:var(--border);cursor:pointer}.nav-section-header .nav-link.active{background:color-mix(in srgb,var(--accent) 10%,var(--bg-elev-1));border-color:var(--accent);color:var(--text)}.nav-section-icon{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;border-radius:50%;background:var(--bg-elev-2);color:var(--text);transition:background .15s ease,color .15s ease}.nav-section-header .nav-link:hover .nav-section-icon{background:var(--bg-elev-3)}.nav-section-header .nav-link.active .nav-section-icon{background:var(--accent);color:#fff}.nav-section-label{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-section-toggle{width:24px;height:24px;display:flex;align-items:center;justify-content:center;flex-shrink:0;padding:0;border:none;border-radius:6px;background:transparent;color:var(--text-dim);cursor:pointer;transition:background .15s ease,color .15s ease}.nav-section-toggle:hover{background:var(--bg-elev-2);color:var(--text)}.nav-section-toggle svg{transition:transform .15s ease}.nav-section-toggle.expanded svg{transform:rotate(90deg)}.nav-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text-dim);font-weight:500;text-decoration:none;transition:background .15s ease,color .15s ease;cursor:pointer}.nav-link:hover,.nav-link.active{background:var(--bg-elev-2);color:var(--text)}.explorer-panel{padding:0;overflow:hidden;position:sticky;top:24px;max-height:calc(100vh - 48px);display:flex;flex-direction:column}.explorer-title{padding:14px 16px 10px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim);border-bottom:1px solid var(--border)}.explorer-tree{flex:1;overflow-y:auto;padding:8px}.nav-section{margin-bottom:8px}.nav-section-header{display:flex;align-items:center;gap:6px}.nav-section-header 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