.token-guardrail-overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.5);z-index:1000;padding:var(--space-6)}.token-guardrail-modal{max-width:400px;width:100%;padding:var(--space-8);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:0 20px 60px rgba(0,0,0,.3)}.token-guardrail__title{margin:0 0 var(--space-4);font-size:1.25rem;font-weight:600}.token-guardrail__desc{margin:0 0 var(--space-6);color:var(--color-text-muted);font-size:.9375rem;line-height:1.5}.token-guardrail__actions{display:flex;flex-wrap:wrap;gap:var(--space-3)}.token-guardrail__btn{padding:var(--space-3) var(--space-5);font-size:.9375rem;font-weight:500;border-radius:var(--radius-lg);cursor:pointer;border:none;transition:background .15s ease}.token-guardrail__btn--primary{background:var(--color-primary);color:var(--color-text-inverse)}.token-guardrail__btn--primary:hover{background:var(--color-primary-hover)}.token-guardrail__btn--secondary{background:var(--color-surface-elevated);color:var(--color-text);border:1px solid var(--color-border)}.token-guardrail__btn--secondary:hover{background:var(--color-surface-hover)}.chat-history-sidebar{flex-shrink:0;width:260px;min-height:0;display:flex;flex-direction:column;border-right:1px solid var(--color-border);background:var(--color-surface);transition:width var(--transition-smooth),min-width var(--transition-smooth)}.chat-history-sidebar--collapsed{width:48px;min-width:48px}.chat-history-sidebar__header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);min-height:44px}.chat-history-sidebar__title{font-size:.8125rem;font-weight:600;color:var(--color-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-history-sidebar--collapsed .chat-history-sidebar__title{display:none}.chat-history-sidebar__toggle{flex-shrink:0;width:28px;height:28px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--color-text-muted);font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition-fast),color var(--transition-fast)}.chat-history-sidebar__toggle:focus-visible,.chat-history-sidebar__toggle:hover{background:var(--color-surface-hover);color:var(--color-text);outline:2px solid var(--color-primary);outline-offset:2px}.chat-history-sidebar__body{flex:1 1;min-height:0;overflow:auto;padding:var(--space-2);display:flex;flex-direction:column;gap:var(--space-2)}.chat-history-sidebar--collapsed .chat-history-sidebar__body{padding:var(--space-2);align-items:center}.chat-history-sidebar__new{flex-shrink:0;width:100%;padding:var(--space-3) var(--space-4);border:1px dashed var(--color-border);border-radius:var(--radius-md);background:transparent;color:var(--color-primary);font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast);text-align:left}.chat-history-sidebar__new:focus-visible,.chat-history-sidebar__new:hover{border-color:var(--color-primary);background:var(--color-primary-muted);outline:2px solid var(--color-primary);outline-offset:2px}.chat-history-sidebar--collapsed .chat-history-sidebar__new{width:32px;height:32px;padding:0;display:flex;align-items:center;justify-content:center;font-size:1.25rem;border-style:solid}.chat-history-sidebar__list{list-style:none;margin:0;padding:0;flex:1 1;min-height:0;overflow:auto;display:flex;flex-direction:column;gap:2px}.chat-history-sidebar__item{width:100%;padding:var(--space-3) var(--space-4);border:none;border-radius:var(--radius-md);background:transparent;color:var(--color-text);font-size:.875rem;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:2px;transition:background var(--transition-fast)}.chat-history-sidebar__item:focus-visible,.chat-history-sidebar__item:hover{background:var(--color-surface-hover);outline:2px solid var(--color-primary);outline-offset:-2px}.chat-history-sidebar__item--active{background:var(--color-primary-muted);color:var(--color-primary)}.chat-history-sidebar__item-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.3}.chat-history-sidebar__item-date{font-size:.75rem;color:var(--color-text-muted)}.chat-history-sidebar__item--active .chat-history-sidebar__item-date{color:var(--color-primary);opacity:.9}.chat-history-sidebar__empty{padding:var(--space-4);font-size:.8125rem;color:var(--color-text-muted);line-height:1.5}@media (max-width:767px){.chat-history-sidebar{position:fixed;left:0;top:var(--header-height,56px);bottom:0;z-index:100;box-shadow:var(--shadow-md)}.chat-history-sidebar--collapsed{width:0;min-width:0;overflow:hidden;border-right:none}}