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th{padding:1.25rem 1.5rem;border-bottom:2px solid var(--border-light);text-align:left;transition:var(--transition);font-weight:700;color:var(--text-accent);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;background:#667eea26;white-space:nowrap}.history-table th:nth-child(1){width:18%}.history-table th:nth-child(2){width:20%}.history-table th:nth-child(3){width:32%}.history-table th:nth-child(4){width:15%}.history-table th:nth-child(5){width:15%}.history-table th:first-child{border-radius:var(--radius-lg) 0 0 0;padding-left:2rem}.history-table th:last-child{border-radius:0 var(--radius-lg) 0 0;padding-right:2rem}.history-table td{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-light);text-align:left;transition:var(--transition);vertical-align:middle;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-table td:nth-child(3){white-space:normal;line-height:1.5;word-wrap:break-word;max-width:0}.history-table 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2rem;font-style:italic;font-size:1.1rem;background:#667eea14;border-radius:var(--radius-lg);margin:2rem 0}.conversations-layout{display:grid;grid-template-columns:260px 1fr;gap:1.5rem;padding:1.5rem 2rem 0}.conversations-sidebar{background:var(--card-bg);border-radius:var(--radius-xl);border:1px solid var(--border-color);box-shadow:var(--shadow-md);overflow:hidden;max-height:70vh;display:flex;flex-direction:column}.conversation-list{list-style:none;margin:0;padding:0;overflow-y:auto}.conversation-list-item{padding:.85rem 1rem;border-bottom:1px solid var(--border-light);cursor:pointer;transition:var(--transition)}.conversation-list-item:last-child{border-bottom:none}.conversation-list-item:hover{background:#667eea1f}.conversation-list-item.selected{background:#667eea2e;border-left:3px solid 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#ffffff0d;transition:var(--transition);position:relative;overflow:hidden}.login-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--primary-light),var(--primary-color));background-size:200% 100%;animation:shimmer 3s infinite}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.login-card:hover{box-shadow:var(--shadow-xl),0 0 20px #10b9811a;transform:translateY(-2px)}.login-header{display:flex;align-items:center;gap:1rem;margin-bottom:2rem;text-align:center;justify-content:center;flex-direction:column}.login-header h1{font-size:1.875rem;font-weight:700;margin-bottom:.25rem;background:linear-gradient(135deg,var(--primary-light),var(--primary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.025em}.login-header p{font-size:.875rem;color:var(--text-secondary);font-weight:500}.login-form 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