:root{--bg-primary: #212121;--bg-secondary: #171717;--bg-sidebar: #0d0d0d;--bg-input: #2f2f2f;--bg-hover: #2a2a2a;--bg-message-user: #303030;--bg-message-assistant: transparent;--border: #3f3f3f;--text-primary: #ececec;--text-secondary: #b4b4b4;--text-muted: #8e8e8e;--accent: #10a37f;--accent-hover: #1a7f64;--danger: #ef4444;--warning: #f59e0b;--badge-draft: #6366f1;--badge-pending: #f59e0b;--badge-active: #10a37f;--badge-failed: #ef4444;--radius: 12px;--font: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}textarea{font-family:inherit}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:260px;background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:16px;border-bottom:1px solid var(--border)}.sidebar-header h1{font-size:14px;font-weight:600;margin:0 0 4px}.sidebar-header p{font-size:12px;color:var(--text-muted);margin:0}.new-chat-btn{margin:12px 16px;padding:10px 14px;background:transparent;border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:13px;text-align:left;transition:background .15s}.new-chat-btn:hover{background:var(--bg-hover)}.quick-actions{flex:0 1 auto;max-height:42vh;overflow-y:auto;padding:8px 12px}.quick-actions h3{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);padding:8px 4px;margin:0}.quick-action{display:block;width:100%;padding:10px 12px;margin-bottom:4px;background:transparent;border:none;border-radius:8px;color:var(--text-secondary);font-size:13px;text-align:left;transition:background .15s,color .15s}.quick-action:hover{background:var(--bg-hover);color:var(--text-primary)}.session-history{flex:1;min-height:0;overflow-y:auto;padding:8px 12px 12px;border-top:1px 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var(--border);font-size:11px;color:var(--text-muted)}.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}.status-dot.ok{background:var(--accent)}.status-dot.err{background:var(--danger)}.main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden;background:var(--bg-primary)}.chat-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain}.chat-header{padding:12px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--bg-secondary)}.chat-header-left{display:flex;align-items:center;gap:10px;min-width:0}.chat-header-right{display:flex;align-items:center;gap:10px;flex-shrink:0}.chat-header h2{font-size:15px;font-weight:600;margin:0}.header-user{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:var(--text-secondary)}.header-logout-btn{border:1px solid var(--border);border-radius:8px;padding:6px 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768px){.sidebar{display:none}}.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at top,#1f2937 0%,var(--bg-primary) 55%)}.auth-card{width:min(420px,100%);background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:28px;text-align:center;box-shadow:0 20px 60px #00000059}.auth-card h1{margin:0 0 8px;font-size:22px}.auth-card p{margin:0 0 20px;color:var(--text-secondary);line-height:1.5}.auth-field{display:flex;flex-direction:column;gap:8px;margin:16px 0;text-align:left}.auth-field span{font-size:13px;color:#cbd5e1}.auth-field input{width:100%;border:1px solid rgba(148,163,184,.35);border-radius:10px;background:#0f172a8c;color:#f8fafc;padding:10px 12px;font-size:14px}.auth-error{margin-bottom:16px;padding:10px 12px;border-radius:10px;background:#ef44441f;color:#fca5a5;font-size:13px}.vk-login-btn{width:100%;border:none;border-radius:10px;padding:12px 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