:root{--bg-main:#0b0f19;--bg-card:#151b2c;--bg-sidebar:#0f1322;--bg-sidebar-hover:#1e2640;--bg-input:#1a2238;--border-color:#242f4c;--border-hover:#3b4e78;--accent:#6366f1;--accent-hover:#4f46e5;--accent-glow:#6366f126;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--success:#10b981;--success-glow:#10b9811a;--warning:#f59e0b;--danger:#ef4444;--info:#06b6d4;--font-family:"Instrument Sans", system-ui, -apple-system, sans-serif;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--transition:all .25s cubic-bezier(.4, 0, .2, 1)}body.light-theme{--bg-main:#f1f5f9;--bg-card:#fff;--bg-sidebar:#fff;--bg-sidebar-hover:#f1f5f9;--bg-input:#f8fafc;--border-color:#e2e8f0;--border-hover:#cbd5e1;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--success-glow:#10b98114}body.light-theme .topbar{background-color:#f1f5f9d9}body.light-theme .admin-table th{background-color:#e2e8f066}body.light-theme .admin-table tr:hover td{background-color:#f1f5f9cc}body.light-theme .upload-dropzone{background-color:#f1f5f94d}body.light-theme .upload-icon-box{background-color:#fff}body.light-theme .filter-bar{background-color:#f1f5f94d}.theme-toggle-btn{border-radius:var(--radius-md);background-color:var(--bg-input);border:1px solid var(--border-color);width:40px;height:40px;color:var(--text-secondary);cursor:pointer;transition:var(--transition);justify-content:center;align-items:center;display:flex}.theme-toggle-btn:hover{border-color:var(--border-hover);color:var(--text-primary);background-color:var(--bg-sidebar-hover)}.theme-toggle-btn svg{stroke:currentColor;stroke-width:2px;fill:none;width:20px;height:20px}.profile-dropdown-container{display:inline-block;position:relative}.profile-trigger{border-radius:var(--radius-md);cursor:pointer;background-color:var(--bg-input);border:1px solid var(--border-color);transition:var(--transition);-webkit-user-select:none;user-select:none;align-items:center;gap:10px;padding:6px 12px;display:flex}.profile-trigger:hover{border-color:var(--border-hover);background-color:var(--bg-sidebar-hover)}.profile-trigger-avatar{background:linear-gradient(135deg, var(--accent), var(--info));color:#fff;text-transform:uppercase;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:.85rem;font-weight:700;display:flex}.profile-trigger-name{color:var(--text-primary);font-size:.85rem;font-weight:600}.profile-trigger-arrow{width:14px;height:14px;stroke:var(--text-muted);stroke-width:2.5px;fill:none;transition:var(--transition)}.profile-trigger:hover .profile-trigger-arrow{stroke:var(--text-secondary)}.profile-dropdown-menu{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);z-index:150;flex-direction:column;gap:4px;width:220px;padding:8px;animation:.2s cubic-bezier(.16,1,.3,1) dropdownFadeIn;display:flex;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 10px 25px -5px 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svg{stroke:currentColor;stroke-width:2px;fill:none;width:16px;height:16px}.dropdown-menu-item:hover{background-color:var(--bg-sidebar-hover);color:var(--text-primary)}.dropdown-menu-item.logout:hover{color:var(--danger);background-color:#ef444414}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-family);min-height:100vh;overflow-x:hidden}a{color:inherit;text-decoration:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.dashboard-container{width:100vw;min-height:100vh;display:flex}.sidebar{background-color:var(--bg-sidebar);border-right:1px solid var(--border-color);width:260px;transition:var(--transition);z-index:100;flex-direction:column;flex-shrink:0;display:flex}.sidebar-header{border-bottom:1px solid var(--border-color);align-items:center;height:70px;padding:0 24px;display:flex}.sidebar-logo{color:var(--text-primary);letter-spacing:.5px;align-items:center;gap:12px;font-size:1.15rem;font-weight:700;display:flex}.sidebar-logo span{color:var(--accent)}.sidebar-nav{flex-direction:column;flex:1;gap:8px;padding:24px 16px;display:flex}.nav-item{border-radius:var(--radius-md);color:var(--text-secondary);transition:var(--transition);align-items:center;gap:14px;padding:12px 16px;font-size:.95rem;font-weight:500;display:flex}.nav-item svg{stroke:currentColor;stroke-width:1.8px;fill:none;width:20px;height:20px}.nav-item:hover{background-color:var(--bg-sidebar-hover);color:var(--text-primary)}.nav-item.active{background-color:var(--accent-glow);color:var(--accent);border-left:3px solid var(--accent);border-top-left-radius:2px;border-bottom-left-radius:2px}.sidebar-footer{border-top:1px solid var(--border-color);align-items:center;gap:12px;padding:20px 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