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var(--color-border);border-radius:var(--radius-md);min-width:0;display:flex}.portal-chat-file-card-icon{border-radius:var(--radius-sm);width:40px;height:40px;font-size:10px;font-weight:var(--font-bold);letter-spacing:.04em;color:#1d4ed8;background:#dbeafe;flex-shrink:0;justify-content:center;align-items:center;display:flex}.portal-chat-file-card-icon[data-kind=doc]{color:#4338ca;background:#e0e7ff}.portal-chat-file-card-icon[data-kind=sheet]{color:#047857;background:#d1fae5}.portal-chat-file-card-icon[data-kind=file]{background:var(--color-divider);color:var(--color-text-secondary)}.portal-chat-file-card-meta{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.portal-chat-file-card-name{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--color-text-primary);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.portal-chat-file-card-size{font-size:var(--text-xs);color:var(--color-text-secondary)}.portal-chat-file-card-download{border-radius:var(--radius-md);width:36px;height:36px;color:var(--color-brand);cursor:pointer;transition:background 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var(--transition-fast);flex-shrink:0;justify-content:center;align-items:center;padding:0;display:flex}.portal-chat-attach-btn:hover:not(:disabled){background:var(--color-surface-hover);color:var(--color-text-primary);border-color:var(--color-input-border-hover)}.portal-chat-attach-btn:disabled{opacity:.45;cursor:not-allowed}.portal-chat-composer .form-group{flex:1;min-width:0;margin-bottom:0}.portal-chat-bubble-text{margin:0}.portal-chat-error{margin:var(--space-3) 0;padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);background:var(--color-danger-soft,#dc354514);color:var(--color-danger,#c0392b);font-size:var(--text-sm)}.portal-chat-status{padding:var(--space-3);color:var(--color-text-secondary);font-size:var(--text-sm);text-align:center}