*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #f8fafc;--surface: #ffffff;--primary: #3b82f6;--primary-hover: #2563eb;--primary-light: #eff6ff;--text: #0f172a;--text-secondary: #64748b;--text-tertiary: #94a3b8;--user-bubble: #3b82f6;--user-text: #ffffff;--assistant-bubble: #f1f5f9;--assistant-text: #0f172a;--border: #e2e8f0;--border-hover: #cbd5e1;--radius: 16px;--radius-sm: 10px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 16px rgba(0,0,0,.06);--shadow-lg: 0 12px 40px rgba(0,0,0,.1)}html,body,#root{height:100dvh;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{display:flex;flex-direction:column;height:100dvh;max-width:720px;margin:0 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#3b82f64d}.access-gate-btn:active:not(:disabled){transform:translateY(0)}.access-gate-btn:disabled{opacity:.5;cursor:not-allowed}.access-gate-error{color:#dc2626;font-size:13px;text-align:center;font-weight:500}.admin-overlay{position:fixed;inset:0;background:#0006;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:200;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.admin-panel{background:var(--surface);border-radius:var(--radius);width:90%;max-width:500px;max-height:80dvh;overflow-y:auto;box-shadow:var(--shadow-lg)}.login-panel{max-width:360px}.admin-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.admin-header h2{font-size:18px;font-weight:600}.close-btn{background:none;border:none;font-size:16px;cursor:pointer;color:var(--text-secondary);padding:4px 8px;transition:color 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th:nth-child(5),.conv-table td:nth-child(5){width:80px}.conv-table th:nth-child(6),.conv-table td:nth-child(6){width:90px}.conv-table th:nth-child(7),.conv-table td:nth-child(7){width:60px}.conv-row{cursor:pointer;transition:background .15s ease}.conv-row:hover{background:var(--bg)}.conv-preview-cell{max-width:250px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-secondary)}.conv-status-badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:600}.conv-status-badge.active{background:#dcfce7;color:#166534}.conv-status-badge.finished{background:#f1f5f9;color:#475569}.conv-pagination{display:flex;align-items:center;justify-content:center;gap:16px;padding:16px 0;font-size:13px;color:var(--text-secondary)}.conv-pagination button{padding:7px 16px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);font-size:13px;cursor:pointer;font-family:inherit;transition:all .15s ease}.conv-pagination button:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.conv-pagination button:disabled{opacity:.4;cursor:default}.conv-back-btn{padding:7px 16px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-secondary);font-size:13px;cursor:pointer;font-family:inherit;margin-bottom:16px;transition:all .15s ease}.conv-back-btn:hover{border-color:var(--primary);color:var(--primary)}.conv-detail-actions{display:flex;align-items:center;gap:8px;margin-bottom:16px}.conv-detail-actions .conv-back-btn{margin-bottom:0}.conv-delete-btn{padding:5px 12px;border:1px solid #fecaca;border-radius:8px;background:var(--surface);color:#dc2626;font-size:12px;font-weight:500;cursor:pointer;font-family:inherit;transition:all .15s ease}.conv-delete-btn:hover{background:#fef2f2;border-color:#dc2626}.conv-checkbox-col{width:32px;text-align:center}.conv-row-selected{background:var(--primary-light)}.conv-bulk-bar{display:flex;align-items:center;gap:12px;padding:10px 14px;margin-bottom:8px;background:var(--primary-light);border:1px solid #bfdbfe;border-radius:8px;font-size:13px;color:var(--text-secondary)}.conv-detail-header{margin-bottom:24px;padding:16px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}.conv-detail-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--text-secondary)}.conv-detail-messages{display:flex;flex-direction:column;gap:16px;max-width:600px}@media(max-width:900px){.conv-table th:nth-child(5),.conv-table td:nth-child(5){display:none}}@media(max-width:640px){.admin-page{flex-direction:column}.admin-sidebar{width:100%;flex-direction:row;border-right:none;border-bottom:1px solid 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