:root{--bg-primary:#0f0f1a;--bg-secondary:#1a1a2e;--bg-card:#16162a;--bg-input:#252547;--border-color:#6366f126;--border-active:#6366f1;--text-primary:#e2e8f0;--text-secondary:#94a3b8;--text-muted:#64748b;--accent:#6366f1;--accent-hover:#7c3aed;--accent-gradient:linear-gradient(135deg, #6366f1, #8b5cf6);--danger:#ef4444;--danger-hover:#dc2626;--success:#22c55e;--radius:12px;--radius-sm:8px;--shadow:0 4px 24px #0003;--font:"Inter", "Segoe UI", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-primary);color:var(--text-primary);font-family:var(--font);-webkit-font-smoothing:antialiased;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.page-container{max-width:960px;margin:0 auto;padding:32px 24px}.page-header{justify-content:space-between;align-items:center;margin-bottom:32px;display:flex}.page-header h1{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:28px;font-weight:700}.navbar{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);justify-content:space-between;align-items:center;padding:16px 32px;display:flex;position:sticky;top:0}.navbar-brand{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:20px;font-weight:700}.navbar-user{color:var(--text-secondary);align-items:center;gap:16px;font-size:14px;display:flex}.auth-container{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);width:100%;max-width:420px;box-shadow:var(--shadow);padding:40px}.auth-card h1{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:8px;font-size:24px;font-weight:700}.auth-card p.subtitle{color:var(--text-secondary);margin-bottom:28px;font-size:14px}.form-group{margin-bottom:20px}.form-group label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-input{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);font-size:14px;font-family:var(--font);outline:none;padding:12px 14px;transition:border-color .2s}.form-input:focus{border-color:var(--border-active)}.form-input::placeholder{color:var(--text-muted)}textarea.form-input{resize:vertical;min-height:120px}.btn{border-radius:var(--radius-sm);font-size:14px;font-weight:600;font-family:var(--font);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:12px 24px;transition:all .2s;display:inline-flex}.btn-primary{background:var(--accent-gradient);color:#fff}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-danger{background:var(--danger);color:#fff;padding:8px 16px;font-size:13px}.btn-danger:hover{background:var(--danger-hover)}.btn-outline{border:1px solid var(--border-color);color:var(--text-secondary);background:0 0;padding:8px 16px;font-size:13px}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}.btn-sm{padding:8px 14px;font-size:13px}.btn-full{width:100%}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:24px;transition:border-color .2s,transform .2s}.card:hover{border-color:#6366f14d}.card-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;display:grid}.card-link{color:inherit;text-decoration:none}.card-link:hover{text-decoration:none}.card-title{color:var(--text-primary);margin-bottom:8px;font-size:18px;font-weight:600}.card-meta{color:var(--text-muted);font-size:12px}.alert{border-radius:var(--radius-sm);margin-bottom:20px;padding:12px 16px;font-size:14px}.alert-error{color:#fca5a5;background:#ef44441a;border:1px solid #ef444433}.alert-success{color:#86efac;background:#22c55e1a;border:1px solid #22c55e33}.code-block{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--accent);word-break:break-all;white-space:pre-wrap;padding:16px;font-family:JetBrains Mono,Fira Code,monospace;font-size:13px;overflow-x:auto}.copy-btn{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;font-size:12px;font-family:var(--font);background:0 0;border-radius:6px;padding:6px 12px;transition:all .2s}.copy-btn:hover{border-color:var(--accent);color:var(--accent)}.knowledge-item{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px;padding:16px;display:flex}.knowledge-content{color:var(--text-secondary);white-space:pre-wrap;flex:1;max-height:100px;font-size:14px;line-height:1.6;overflow:hidden}.section{margin-bottom:32px}.section-title{color:var(--text-primary);border-bottom:1px solid var(--border-color);margin-bottom:16px;padding-bottom:8px;font-size:16px;font-weight:600}.inline-form{align-items:flex-end;gap:12px;display:flex}.inline-form .form-group{flex:1;margin-bottom:0}.spinner{color:var(--text-muted);justify-content:center;align-items:center;padding:48px;font-size:14px;display:flex}.empty-state{text-align:center;color:var(--text-muted);padding:48px 24px}.empty-state-icon{margin-bottom:16px;font-size:48px}.empty-state p{font-size:14px}.back-link{color:var(--text-secondary);margin-bottom:24px;font-size:14px;display:inline-block}.back-link:hover{color:var(--accent)}.pagination{border-top:1px solid var(--border-color);justify-content:center;align-items:center;gap:16px;margin-top:24px;padding-top:16px;display:flex}.pagination-info{color:var(--text-muted);font-size:13px}.btn-outline:disabled{opacity:.4;cursor:not-allowed}.btn-outline:disabled:hover{border-color:var(--border-color);color:var(--text-secondary)}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#0009;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);width:100%;max-width:500px;box-shadow:var(--shadow);padding:32px}