:root{--background-primary: #ffffff;--background-secondary: #f5f5f5;--background-modifier-border: #e0e0e0;--background-modifier-hover: #f0f0f0;--text-normal: #1a1a1a;--text-muted: #666666;--text-faint: #999999;--text-on-accent: #ffffff;--interactive-accent: #1e5fcc;--interactive-accent-hover: #1750b0;--font-interface: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-text: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-monospace: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;--radius-s: 4px;--radius-m: 8px;--radius-l: 12px}*{box-sizing:border-box}body{margin:0;font-family:var(--font-interface);background:var(--background-primary);color:var(--text-normal)}.hub-app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.hub-topbar{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:48px;border-bottom:1px solid var(--background-modifier-border);background:var(--background-primary);flex-shrink:0}.hub-topbar-title{font-weight:700;font-size:16px;color:var(--text-normal);text-decoration:none}.hub-topbar-auth{display:flex;align-items:center;gap:8px}.hub-topbar-login-btn{padding:6px 14px;border-radius:8px;border:1px solid var(--background-modifier-border);background:var(--interactive-accent);color:var(--text-on-accent);font:inherit;font-weight:600;cursor:pointer}.hub-topbar-user{display:flex;align-items:center;gap:8px;cursor:pointer;padding:4px 8px;border-radius:8px}.hub-topbar-user:hover{background:var(--background-modifier-hover)}.hub-topbar-avatar{width:28px;height:28px;border-radius:50%;background:var(--interactive-accent);color:var(--text-on-accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.hub-topbar-dropdown{position:absolute;top:48px;right:8px;background:var(--background-primary);border:1px solid var(--background-modifier-border);border-radius:8px;box-shadow:0 4px 12px #0000001a;z-index:100;min-width:140px;overflow:hidden}.hub-topbar-dropdown-item{padding:10px 14px;cursor:pointer;font:inherit;background:none;border:none;width:100%;text-align:left;color:var(--text-normal)}.hub-topbar-dropdown-item:hover{background:var(--background-modifier-hover)}.hub-body{display:flex;flex:1;overflow:hidden}.hub-sidebar{width:180px;flex-shrink:0;border-right:1px solid var(--background-modifier-border);padding:12px 8px;display:flex;flex-direction:column;gap:2px;background:var(--background-secondary)}.hub-sidebar-link{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--text-normal);font-size:14px;font-weight:500}.hub-sidebar-link:hover{background:var(--background-modifier-hover)}.hub-sidebar-link.active{background:var(--interactive-accent);color:var(--text-on-accent)}.hub-content{flex:1;overflow-y:auto;padding:0}.hub-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:200}.hub-modal{background:var(--background-primary);border-radius:16px;padding:32px;width:420px;max-width:95vw;box-shadow:0 8px 32px #00000026;position:relative}.hub-modal-title{font-size:22px;font-weight:700;text-align:center;margin:0 0 6px}.hub-modal-subtitle{text-align:center;color:var(--text-muted);margin:0 0 24px;font-size:14px}.hub-modal-close{position:absolute;top:14px;right:14px;background:none;border:none;font-size:20px;cursor:pointer;color:var(--text-muted);line-height:1;padding:4px}.hub-modal-field{margin-bottom:16px}.hub-modal-label{display:block;font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--text-muted);margin-bottom:6px;text-transform:uppercase}.hub-modal-input{width:100%;padding:10px 14px;border:1px solid var(--background-modifier-border);border-radius:8px;font:inherit;font-size:14px;background:var(--background-secondary);color:var(--text-normal)}.hub-modal-input:focus{outline:none;border-color:var(--interactive-accent)}.hub-modal-submit{width:100%;padding:12px;border-radius:8px;border:none;background:var(--interactive-accent);color:var(--text-on-accent);font:inherit;font-size:16px;font-weight:700;cursor:pointer;margin-top:4px}.hub-modal-submit:hover{background:var(--interactive-accent-hover)}.hub-modal-switch{text-align:center;margin-top:20px;font-size:14px;color:var(--text-muted)}.hub-modal-switch a{color:var(--interactive-accent);cursor:pointer;text-decoration:none;font-weight:600}.hub-modal-error{color:#c0392b;font-size:13px;margin-bottom:12px;text-align:center}.hub-users{padding:24px}.hub-users-header{margin-bottom:16px}.hub-users-title{font-size:18px;font-weight:700;margin:0;color:var(--text-normal)}.hub-users-list{display:flex;flex-direction:column;gap:4px}.hub-users-empty,.hub-users-error{color:var(--text-muted);font-size:14px;padding:8px 0}.hub-user-card{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;transition:background .1s}.hub-user-card:hover{background:var(--background-modifier-hover)}.hub-user-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;flex-shrink:0}.hub-user-avatar--initials{display:flex;align-items:center;justify-content:center;background:var(--interactive-accent);color:var(--text-on-accent);font-size:14px;font-weight:700}.hub-user-info{display:flex;flex-direction:column;min-width:0}.hub-user-name{font-size:14px;font-weight:600;color:var(--text-normal);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hub-user-handle{font-size:12px;color:var(--text-muted)}