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ease;z-index:3;overflow:hidden}.sidebar--open{width:min(320px,80vw)}.sidebar--closed{pointer-events:none;border-right-color:transparent}.sidebar-panels{display:flex;width:200%;height:100%;transition:transform .28s ease}.sidebar-panels--menu{transform:translate(0)}.sidebar-panels--favorites{transform:translate(-50%)}.sidebar-panel{width:50%;min-width:50%;height:100%;display:flex;flex-direction:column;padding:20px 14px}.sidebar-panel--favorites{border-left:1px solid var(--color-border)}.sidebar-top{padding:6px 8px 16px}.sidebar-top--favorites{padding-top:6px;padding-bottom:12px}.sidebar-top__row{display:flex;align-items:center;justify-content:space-between;gap:12px}.sidebar-logo{width:170px;max-width:100%}.sidebar-mobile-close{display:none;flex:none}.sidebar-mobile-close img{width:20px;height:20px}.sidebar-back-button{border:none;background:transparent;border-radius:12px;width:36px;height:36px;padding:0;flex:none;display:inline-flex;align-items:center;justify-content:center;color:var(--color-text);cursor:pointer}.sidebar-back-button__icon{width:20px;height:20px}.sidebar-favorites__head{margin-top:8px;display:flex;align-items:center;justify-content:flex-start;gap:10px}.sidebar-favorites__title{margin:0;font-size:1rem;font-weight:700;color:var(--color-text)}.sidebar-menu{display:flex;flex-direction:column;gap:6px;flex:1;min-height:0;overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none}.sidebar-menu::-webkit-scrollbar{width:0;height:0;display:none}.sidebar-menu__divider{height:1px;background:var(--color-border);margin:4px 6px}.sidebar-bottom{padding-top:10px;border-top:1px solid var(--color-border)}.sidebar-item{width:100%;display:flex;align-items:center;gap:10px;border-radius:12px;border:1px solid transparent;padding:10px 12px;background:transparent;color:var(--color-text);text-decoration:none;text-align:left;cursor:pointer}.sidebar-item--active{background:var(--color-surface-muted);border-color:var(--color-border)}.sidebar-item--danger{color:var(--color-accent)}.sidebar-item__icon{width:20px;height:20px;object-fit:contain}.sidebar-accordion{display:flex;flex-direction:column;gap:0}.sidebar-accordion__trigger{justify-content:flex-start}.sidebar-accordion__angle{margin-left:auto;width:16px;height:16px;flex:none;transition:transform .2s ease}.sidebar-accordion__angle--open{transform:scaleY(-1)}.sidebar-accordion__content{display:grid;grid-template-rows:0fr;margin-top:0;transition:grid-template-rows .22s ease,margin-top .22s ease}.sidebar-accordion__content--open{grid-template-rows:1fr;margin-top:6px}.sidebar-accordion__items{min-height:0;overflow:hidden;display:flex;flex-direction:column;gap:6px}.sidebar-item--nested{width:calc(100% - 12px);margin-left:12px}.sidebar-item--theme{justify-content:flex-start}.sidebar-item__label{min-width:0}.sidebar-item__meta{margin-left:auto;color:var(--color-text-muted);font-size:.92rem;line-height:1.2}.sidebar-favorites{min-height:0;flex:1;overflow-y:auto;scrollbar-width:none;-ms-overflow-style:none}.sidebar-favorites::-webkit-scrollbar{width:0;height:0;display:none}.sidebar-favorites__status-block{display:flex;flex-direction:column;gap:8px}.sidebar-favorites__status{margin:0;color:var(--color-text-muted);font-size:.9rem}.sidebar-favorites__loader{min-height:100%;display:flex;align-items:center;justify-content:center;padding:12px}.sidebar-favorites__spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--color-border);border-top-color:var(--color-accent);animation:sidebar-favorites-spin .9s linear infinite}@keyframes sidebar-favorites-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.sidebar-favorites__status--error{color:#b91c1c}.sidebar-favorites__retry{width:fit-content;border:1px solid var(--color-border);border-radius:10px;background:var(--color-surface-muted);color:var(--color-text);padding:6px 10px;cursor:pointer}.sidebar-favorites__list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}.sidebar-favorites__item{border:1px solid transparent;border-radius:12px;display:flex;align-items:center;gap:6px;padding:4px}.sidebar-favorites__item--active{border-color:var(--color-border);background:var(--color-surface-muted)}.sidebar-favorites__pair-button{border:none;background:transparent;flex:1;text-align:left;display:inline-flex;align-items:center;gap:10px;padding:6px 8px;cursor:pointer}.sidebar-favorites__pair-icon{width:24px;height:24px;flex:none}.sidebar-favorites__pair-text{font-size:.88rem;line-height:1.3;color:var(--color-text);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden}.sidebar-favorites__menu{position:relative;flex:none}.sidebar-favorites__menu-button{width:34px;height:34px;border:none;border-radius:10px;background:transparent;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.sidebar-favorites__menu-button:disabled{cursor:not-allowed;opacity:.5}.sidebar-favorites__menu-button img{width:18px;height:18px}.sidebar-favorites__menu-popover{position:absolute;right:0;top:calc(100% + 6px);min-width:170px;border:1px solid var(--color-border);border-radius:12px;background:var(--color-surface);box-shadow:var(--shadow-main);padding:6px;z-index:4}.sidebar-favorites__menu-action{width:100%;border:none;border-radius:8px;background:transparent;color:var(--color-text);text-align:left;padding:8px 10px;white-space:nowrap;cursor:pointer}.modal-backdrop{position:fixed;inset:0;background:var(--color-overlay);z-index:120;display:flex;align-items:center;justify-content:center;padding:18px}.modal-card{position:relative;width:min(520px,100%);border-radius:20px;border:1px solid var(--color-border);background:var(--color-surface);box-shadow:var(--shadow-main);padding:20px}.modal-card--drop-active{border-color:var(--color-accent)}.modal-title{margin:0 0 12px}.modal-close-button{position:absolute;top:12px;right:12px;width:40px;height:40px;border:none;border-radius:10px;background:transparent;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.modal-close-button img{width:24px;height:24px}@media(hover:hover)and (pointer:fine){.password-input__toggle:hover:not(:disabled){background:#0000000f}:root[data-theme=dark] .password-input__toggle:hover:not(:disabled){background:#ffffff1a}.button:hover:not(:disabled){transform:translateY(-1px)}.button--secondary:hover:not(:disabled){background:#f2f2f2}:root[data-theme=dark] .button--secondary:hover:not(:disabled){background:#232323}.menu-button:hover:not(:disabled){background:var(--color-surface-muted);border-color:var(--color-border)}.chat-message__action-button:hover:not(:disabled){opacity:1;background:#0000000d}:root[data-theme=dark] .chat-message__action-button:hover:not(:disabled){background:#ffffff1a}.sidebar-back-button:hover{background:var(--color-surface-muted)}.sidebar-item:hover{background:var(--color-surface-muted);border-color:var(--color-border)}.sidebar-favorites__item:hover{border-color:var(--color-border);background:var(--color-surface-muted)}.sidebar-favorites__menu-button:hover:not(:disabled){background:#0000000f}:root[data-theme=dark] .sidebar-favorites__menu-button:hover:not(:disabled){background:#ffffff1f}.sidebar-favorites__menu-action:hover:not(:disabled){background:var(--color-surface-muted)}.modal-close-button:hover{background:var(--color-surface-muted)}}@media(hover:none),(pointer:coarse){.password-input__toggle:active:not(:disabled){background:#0000000f}:root[data-theme=dark] .password-input__toggle:active:not(:disabled){background:#ffffff1a}.button:active:not(:disabled){transform:translateY(-1px)}.button--secondary:active:not(:disabled){background:#f2f2f2}:root[data-theme=dark] .button--secondary:active:not(:disabled){background:#232323}.menu-button:active:not(:disabled){background:var(--color-surface-muted);border-color:var(--color-border)}.chat-message__action-button:active:not(:disabled){opacity:1;background:#0000000d}:root[data-theme=dark] .chat-message__action-button:active:not(:disabled){background:#ffffff1a}.sidebar-back-button:active{background:var(--color-surface-muted)}.sidebar-item:active{background:var(--color-surface-muted);border-color:var(--color-border)}.sidebar-favorites__item:active{border-color:var(--color-border);background:var(--color-surface-muted)}.sidebar-favorites__menu-button:active:not(:disabled){background:#0000000f}:root[data-theme=dark] .sidebar-favorites__menu-button:active:not(:disabled){background:#ffffff1f}.sidebar-favorites__menu-action:active:not(:disabled){background:var(--color-surface-muted)}.modal-close-button:active{background:var(--color-surface-muted)}}.support-form{display:flex;flex-direction:column;gap:10px;text-align:center}.support-input,.support-textarea{background:var(--color-surface-muted)}.support-textarea{height:130px;min-height:130px;max-height:130px;resize:none}.support-counter{margin:-2px 0 0;text-align:right;font-size:.8rem;color:var(--color-text-muted)}.support-upload{display:flex;flex-direction:column;gap:6px}.support-upload__trigger{width:fit-content;min-width:220px;margin:2px auto 0}.support-upload__input{display:none}.support-upload__hint{margin:0;font-size:.82rem;color:var(--color-text-muted)}.support-dropzone{position:absolute;inset:0;z-index:3;display:flex;align-items:center;justify-content:center;padding:20px;border-radius:inherit;background:#fffffff0;border:2px dashed var(--color-accent)}:root[data-theme=dark] .support-dropzone{background:#1b1b1bf0}.support-dropzone__content{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center}.support-dropzone__title{margin:0;font-size:1.05rem;font-weight:700;color:var(--color-text)}.support-dropzone__text{margin:0;color:var(--color-text-muted);font-size:.9rem}.support-files{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}.support-files__item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 10px;border-radius:10px;border:1px solid var(--color-border);background:var(--color-surface-muted)}.support-files__main{display:flex;align-items:center;gap:10px;min-width:0}.support-files__preview{width:36px;height:36px;border-radius:8px;object-fit:cover;border:1px solid var(--color-border);flex:none}.support-files__name{font-size:.86rem;color:var(--color-text);line-height:1.25;word-break:break-word}.support-files__remove{width:auto;min-width:84px;padding:8px 10px;flex:none}.support-actions{display:flex;flex-direction:column;gap:8px;margin-top:4px}.support-success{display:flex;flex-direction:column;gap:12px}.support-success__text{margin:0;color:var(--color-text-muted)}.change-password-success-modal{width:min(460px,100%)}.change-password-success{display:flex;flex-direction:column;gap:12px;text-align:center}.change-password-success__text{margin:0;color:var(--color-text-muted)}.message-delete-confirm-modal{width:min(460px,100%)}.message-delete-confirm{display:flex;flex-direction:column;gap:12px;text-align:center}.message-delete-confirm__text{margin:0 0 10px;color:var(--color-text-muted)}@media(max-width:900px){.menu-button{width:44px;padding:0;gap:0}.menu-button__label{display:none}.sidebar-backdrop{display:block;z-index:80}.sidebar{position:fixed;inset:0 auto 0 0;width:min(320px,86vw);transform:translate(-100%);transition:transform .24s ease;z-index:90;box-shadow:var(--shadow-main)}.sidebar--open{width:min(320px,86vw);transform:translate(0);pointer-events:auto}.sidebar--closed{width:min(320px,86vw);transform:translate(-100%);border-right-color:var(--color-border)}.chat-main--sidebar-open{--chat-container-max-width: 940px}.sidebar-mobile-close{display:inline-flex}}@media(max-width:680px){.auth-page{padding:14px}.auth-card{padding:20px}.chat-header{height:calc(62px + env(safe-area-inset-top));padding:env(safe-area-inset-top) 12px 0}.chat-body{padding:4px 12px}.chat-footer{padding:10px 12px calc(10px + env(safe-area-inset-bottom))}.chat-form{border-radius:20px}.chat-input{min-height:52px;border-radius:26px}}