:root{--color-accent: #ff5033;--color-accent-hover: #e6452b;--color-accent-soft: rgba(255, 80, 51, .1);--color-accent-fg: #2c2a29;--color-accent-contrast: #ffffff;--color-success: #469478;--color-success-soft: rgba(70, 148, 120, .12);--color-danger: #c0392b;--color-danger-soft: rgba(192, 57, 43, .1);--color-bg: #ffffff;--color-bg-tint: #f6f6f6;--color-surface: #ffffff;--color-surface-2: #e8e8e8;--color-border: rgba(44, 42, 41, .15);--color-border-strong: #2c2a29;--color-text: #2c2a29;--color-text-muted: #403e3e;--color-text-faint: #666565;--color-bubble-user-bg: var(--color-bg-tint);--color-bubble-user-text: var(--color-text);--color-bubble-assistant-bg: var(--color-surface);--color-bubble-assistant-text: var(--color-text);--font-body: "Plus Jakarta Sans", "Imatia Sans", Arial, Helvetica, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--font-size-base: 16px;--font-size-title: 2rem;--line-height: 1.55;--radius-xs: 8px;--radius-sm: 10px;--radius-md: 14px;--radius-lg: 16px;--space-unit: 8px;--content-max-width: 760px;--sidebar-width: 264px;--source-panel-width: 360px;--shadow-sm: none;--shadow-md: none;--shadow-lg: 0 0 0 2px var(--color-border);--shadow-soft: none;--shadow-focus: 0 0 0 2px var(--color-accent)}:root[data-theme=dark]{--color-accent: #ff5033;--color-accent-hover: #ff6a50;--color-accent-soft: rgba(255, 80, 51, .1);--color-accent-fg: #ff5033;--color-accent-contrast: #ffffff;--color-success: #4ea57b;--color-success-soft: rgba(78, 165, 123, .15);--color-danger: #e87b6e;--color-danger-soft: rgba(232, 123, 110, .15);--color-bg: #2c2a29;--color-bg-tint: #403e3e;--color-surface: #2c2a29;--color-surface-2: #535151;--color-border: rgba(255, 255, 255, .1);--color-border-strong: #ffffff;--color-text: #ffffff;--color-text-muted: rgba(255, 255, 255, .8);--color-text-faint: rgba(255, 255, 255, .6);--color-bubble-user-bg: var(--color-bg-tint);--color-bubble-assistant-bg: var(--color-surface);--shadow-sm: none;--shadow-md: none;--shadow-lg: 0 0 0 2px var(--color-border);--shadow-soft: none;--shadow-focus: 0 0 0 2px var(--color-accent)}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-body);font-size:var(--font-size-base);line-height:var(--line-height);-webkit-font-smoothing:antialiased;font-feature-settings:"cv11","ss01"}::selection{background:color-mix(in srgb,var(--color-accent) 30%,transparent)}button{font:inherit;color:inherit}.app{height:100%;display:flex}.app__main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden}.sidebar{flex:none;width:var(--sidebar-width);background:var(--color-bg-tint);border-right:1px solid var(--color-border);display:flex;flex-direction:column;min-height:0}.sidebar__brand{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.25);padding:calc(var(--space-unit) * 1.75) calc(var(--space-unit) * 1.75) calc(var(--space-unit) * 1.25);border-bottom:1px solid var(--color-border)}.sidebar__mark{flex:none;width:30px;height:30px;border-radius:var(--radius-sm);background:var(--color-accent);color:var(--color-accent-contrast);display:inline-flex;align-items:center;justify-content:center;box-shadow:0 2px 6px color-mix(in srgb,var(--color-accent) 40%,transparent)}.sidebar__brand-name{font-weight:600;font-size:13.5px;letter-spacing:-.01em}.sidebar__brand-sub{font-size:11px;color:var(--color-text-faint)}.sidebar__new{margin:calc(var(--space-unit) * 1.25);padding:calc(var(--space-unit) * 1) calc(var(--space-unit) * 1.5);display:flex;align-items:center;justify-content:space-between;gap:var(--space-unit);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);font-size:13px;font-weight:500;cursor:pointer;box-shadow:var(--shadow-sm);transition:border-color .15s ease,box-shadow .15s ease}.sidebar__new:hover{border-color:var(--color-border-strong)}.auth-splash{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:var(--color-bg);padding:var(--space-unit)}.auth-splash__card{display:flex;flex-direction:column;align-items:center;gap:calc(var(--space-unit) * 1.5);text-align:center;max-width:380px}.auth-splash__title{margin:0;font-size:var(--font-size-title);color:var(--color-text)}.auth-splash__msg{margin:0;color:var(--color-text-muted)}.auth-splash__btn{padding:calc(var(--space-unit) * .875) calc(var(--space-unit) * 2);border:none;border-radius:var(--radius-sm);background:var(--color-accent);color:var(--color-accent-contrast);font:inherit;font-weight:600;cursor:pointer}.auth-splash__btn:hover{background:var(--color-accent-hover)}.sidebar__nav{padding:0 calc(var(--space-unit) * 1.25);display:flex;flex-direction:column;gap:2px}.sidebar__nav-item{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.25);padding:calc(var(--space-unit) * .875) calc(var(--space-unit) * 1.25);border-radius:var(--radius-sm);background:transparent;border:none;color:var(--color-text-muted);font-size:13px;text-align:left;cursor:pointer;transition:background .12s ease,color .12s ease}.sidebar__nav-item:hover{background:var(--color-surface);color:var(--color-text)}.sidebar__nav-item.is-active{background:var(--color-surface);color:var(--color-text);box-shadow:var(--shadow-sm)}.sidebar__nav-badge{margin-left:auto;font-size:10px;font-weight:600;padding:1px 7px;border-radius:999px;background:var(--color-accent);color:var(--color-accent-contrast)}.sidebar__search{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.25);margin:6px calc(var(--space-unit) * 1.25) 0;padding:calc(var(--space-unit) * .75) calc(var(--space-unit) * 1.25);border-radius:var(--radius-sm);background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-faint)}.sidebar__search:focus-within{border-color:var(--color-border-strong)}.sidebar__search-input{flex:1;min-width:0;border:none;outline:none;background:transparent;color:var(--color-text);font:inherit;font-size:13px}.sidebar__search-input::placeholder{color:var(--color-text-faint)}.sidebar__section-label{display:flex;align-items:center;justify-content:space-between;padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2) 4px;font-size:10.5px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-faint)}.sidebar__section-count{font-family:var(--font-mono);font-weight:500}.sidebar__list{flex:1;overflow-y:auto;list-style:none;margin:0;padding:4px calc(var(--space-unit) * 1.25) calc(var(--space-unit) * 1);display:flex;flex-direction:column;gap:2px}.sidebar__item{position:relative;display:flex;align-items:stretch;border-radius:var(--radius-sm);transition:background .12s ease}.sidebar__item:hover{background:var(--color-surface)}.sidebar__item.is-active{background:var(--color-surface);box-shadow:var(--shadow-sm)}.sidebar__item-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px;padding:calc(var(--space-unit) * 1) calc(var(--space-unit) * 1.25);border:none;background:transparent;color:inherit;font:inherit;text-align:left;cursor:pointer}.sidebar__item-row{display:flex;align-items:center;gap:6px;font-size:12.5px;font-weight:500;color:var(--color-text)}.sidebar__item-title{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar__item-time{font-size:10.5px;color:var(--color-text-faint);white-space:nowrap}.sidebar__item-preview{font-size:11.5px;color:var(--color-text-faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar__item-delete{flex:none;width:28px;display:inline-flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--color-text-faint);cursor:pointer;opacity:0;transition:opacity .15s ease,color .15s ease}.sidebar__item:hover .sidebar__item-delete{opacity:1}.sidebar__item-delete:hover{color:var(--color-danger)}.sidebar__empty{padding:calc(var(--space-unit) * 1) calc(var(--space-unit) * 2);font-size:12.5px;color:var(--color-text-faint)}.sidebar__user{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.25);padding:calc(var(--space-unit) * 1.25);border-top:1px solid var(--color-border)}.sidebar__avatar{flex:none;width:28px;height:28px;border-radius:50%;background:var(--color-accent-soft);color:var(--color-accent-fg);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:600}.sidebar__user-text{flex:1;min-width:0}.sidebar__user-name{font-size:12.5px;font-weight:500}.sidebar__user-role{font-size:10.5px;color:var(--color-text-faint)}.sidebar__icon-btn{width:26px;height:26px;border-radius:var(--radius-xs);display:inline-flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--color-text-muted);cursor:pointer}.sidebar__icon-btn:hover{color:var(--color-text);background:var(--color-surface)}@media(max-width:800px){.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:31;transform:translate(-100%);transition:transform .22s ease;box-shadow:var(--shadow-lg)}.sidebar.is-open{transform:translate(0)}}.sidebar-scrim{display:none}@media(max-width:800px){.sidebar-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;background:#0006;opacity:0;pointer-events:none;transition:opacity .2s ease;display:block}.sidebar-scrim.is-open{opacity:1;pointer-events:auto}}.sidebar-toggle{display:none}@media(max-width:800px){.sidebar-toggle{position:fixed;top:calc(var(--space-unit) * 1.5);left:calc(var(--space-unit) * 1.5);z-index:20;width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);cursor:pointer;box-shadow:var(--shadow-sm)}}.topbar{flex:none;display:flex;align-items:center;gap:var(--space-unit);padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 3.5);border-bottom:1px solid var(--color-border);background:var(--color-surface);min-height:56px}.topbar__crumbs{display:flex;align-items:center;gap:8px;font-size:13px;min-width:0}.topbar__crumb{font-weight:500;color:var(--color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar__crumb-muted{color:var(--color-text-muted);font-weight:400}.topbar__sep{color:var(--color-text-faint)}.topbar__actions{margin-left:auto;display:flex;gap:6px}.chip{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:var(--radius-xs);font-size:11.5px;font-weight:500;background:var(--color-bg-tint);color:var(--color-text-muted);border:1px solid var(--color-border);cursor:default}.chip--button{cursor:pointer;transition:border-color .15s ease,color .15s ease}.chip--button:hover{color:var(--color-text);border-color:var(--color-border-strong)}.chip__dot{width:6px;height:6px;border-radius:50%;background:var(--color-success)}.chip__tag{display:inline-flex;align-items:center;padding:0 5px;border-radius:3px;font-size:10px;font-weight:600;letter-spacing:.04em;background:var(--color-accent-soft);color:var(--color-accent-fg);min-width:16px;justify-content:center}.landing{flex:1;overflow-y:auto;display:flex;flex-direction:column;min-height:0}.landing__body{width:100%;max-width:880px;margin:0 auto;padding:calc(var(--space-unit) * 6) calc(var(--space-unit) * 3.5) calc(var(--space-unit) * 4);display:flex;flex-direction:column;gap:calc(var(--space-unit) * 2)}.landing__title{font-size:30px;font-weight:600;letter-spacing:-.025em;margin:0 0 4px}.landing__tagline{font-size:14.5px;color:var(--color-text-muted);margin:0 0 calc(var(--space-unit) * 2);line-height:1.5}.landing__section-label{display:flex;align-items:center;gap:var(--space-unit);margin:calc(var(--space-unit) * 1.5) 0 var(--space-unit)}.landing__section-label-text{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-faint)}.landing__section-label-rule{flex:1;height:1px;background:var(--color-border)}.landing__tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-unit) calc(var(--space-unit) * 1.5)}.tile{display:flex;flex-direction:column;gap:var(--space-unit);padding:calc(var(--space-unit) * 1.75);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);text-align:left;cursor:pointer;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}.tile:hover{border-color:var(--color-accent);transform:translateY(-1px);box-shadow:var(--shadow-md)}.tile__top{display:flex;align-items:center;gap:calc(var(--space-unit) * 1.25)}.tile__icon{flex:none;width:30px;height:30px;border-radius:var(--radius-sm);background:var(--color-accent-soft);color:var(--color-accent-fg);display:inline-flex;align-items:center;justify-content:center}.tile__label{flex:1;font-size:13.5px;font-weight:500;color:var(--color-text);line-height:1.35}.tile__arrow{color:var(--color-text-faint);transition:transform .15s ease,color .15s ease}.tile:hover .tile__arrow{color:var(--color-accent);transform:translate(2px)}.tile__meta{display:flex;align-items:center;gap:var(--space-unit);font-size:11.5px;color:var(--color-text-faint)}.tile__meta-tag{padding:1px 6px;border-radius:4px;background:var(--color-surface-2);color:var(--color-text-muted);font-size:10px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}.activity{border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);overflow:hidden}.activity__row{display:flex;align-items:center;gap:var(--space-unit);padding:calc(var(--space-unit) * 1.25) calc(var(--space-unit) * 1.75);font-size:13px}.activity__row+.activity__row{border-top:1px solid var(--color-border)}.activity__tag{min-width:60px;text-align:center;padding:2px 6px;border-radius:4px;font-size:10px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;background:var(--color-surface-2);color:var(--color-text-muted)}.activity__tag--flag{background:var(--color-accent-soft);color:var(--color-accent-fg)}.activity__tag--approve{background:var(--color-success-soft);color:var(--color-success)}.activity__tag--reject{background:var(--color-danger-soft);color:var(--color-danger)}.activity__text strong{color:var(--color-text);font-weight:600}.activity__text{color:var(--color-text-muted)}.activity__time{margin-left:auto;font-family:var(--font-mono);font-size:11px;color:var(--color-text-faint);white-space:nowrap}.composer{display:flex;flex-direction:column;gap:var(--space-unit);padding:calc(var(--space-unit) * 1.25);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:border-color .15s ease,box-shadow .15s ease}.composer:focus-within{border-color:var(--color-accent);box-shadow:var(--shadow-focus)}.composer--large{padding:calc(var(--space-unit) * 1.5)}.composer__input{width:100%;border:none;outline:none;resize:none;background:transparent;color:inherit;font:inherit;line-height:var(--line-height);max-height:200px;padding:0}.composer__input::placeholder{color:var(--color-text-faint)}.composer--large .composer__input{font-size:16px}.composer__footer{display:flex;align-items:center;gap:6px}.composer__chip{display:inline-flex;align-items:center;gap:4px;padding:4px 9px;border-radius:var(--radius-xs);font-size:11.5px;color:var(--color-text-muted);border:1px solid var(--color-border);background:var(--color-bg-tint);cursor:pointer;transition:border-color .15s ease,color .15s ease}.composer__chip:hover{color:var(--color-text);border-color:var(--color-border-strong)}.composer__chip--ghost{border-color:transparent;background:transparent}.composer__count{margin-left:auto;font-family:var(--font-mono);font-size:11px;color:var(--color-text-faint)}.composer__send{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border:none;border-radius:var(--radius-xs);background:var(--color-accent);color:var(--color-accent-contrast);font-size:12.5px;font-weight:500;cursor:pointer;box-shadow:0 1px 4px color-mix(in srgb,var(--color-accent) 35%,transparent);transition:background .15s ease,opacity .15s ease}.composer__send:hover:not(:disabled){background:var(--color-accent-hover)}.composer__send:disabled{background:var(--color-surface-2);color:var(--color-text-faint);box-shadow:none;cursor:default}.suggestions{list-style:none;margin:calc(var(--space-unit) * 1.5) 0 0;padding:0;display:flex;flex-wrap:wrap;gap:var(--space-unit)}.suggestions__chip{border:1px solid var(--color-border);border-radius:999px;background:var(--color-surface);color:var(--color-text-muted);font:inherit;font-size:12.5px;padding:6px 14px;cursor:pointer;transition:color .15s ease,border-color .15s ease}.suggestions__chip:hover{color:var(--color-text);border-color:var(--color-accent)}.conversation{flex:1;display:flex;flex-direction:column;min-height:0}.conversation__split{flex:1;display:flex;min-height:0;overflow:hidden}.conversation__col{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0}.conversation__thread{flex:1;overflow-y:auto;min-height:0}.conversation__messages{max-width:720px;margin:0 auto;padding:calc(var(--space-unit) * 3) calc(var(--space-unit) * 3.5);display:flex;flex-direction:column;gap:calc(var(--space-unit) * 1.75)}.conversation__composer{flex:none;padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 3.5) calc(var(--space-unit) * 2);border-top:1px solid var(--color-border);background:var(--color-bg)}.conversation__composer .composer{max-width:720px;margin:0 auto}.message{display:flex;gap:calc(var(--space-unit) * 1.25);align-items:flex-start;animation:msg-fade .3s ease both}@keyframes msg-fade{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.message__avatar{flex:none;width:28px;height:28px;border-radius:var(--radius-xs);display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--color-border);background:var(--color-surface-2);color:var(--color-text-muted);font-size:11px;font-weight:600}.message--user .message__avatar{background:var(--color-accent-soft);color:var(--color-accent-fg)}.message__card{flex:1;min-width:0;padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);box-shadow:var(--shadow-sm)}.message--user .message__card{background:var(--color-accent-soft);border-color:color-mix(in srgb,var(--color-accent) 25%,transparent)}.message__header{display:flex;align-items:baseline;gap:var(--space-unit);margin-bottom:6px}.message__role{font-size:12px;font-weight:600}.message__time{font-family:var(--font-mono);font-size:10.5px;color:var(--color-text-faint)}.message__body{font-size:14px;line-height:1.65;color:var(--color-text);white-space:pre-wrap;word-wrap:break-word;overflow-wrap:anywhere}.message__body .markdown{white-space:normal}.message__cursor{display:inline-block;width:8px;height:1.1em;vertical-align:text-bottom;background:var(--color-text-muted);border-radius:1px;animation:msg-blink 1s steps(2,start) infinite}@keyframes msg-blink{to{visibility:hidden}}.message__footer{margin-top:calc(var(--space-unit) * 1.25);padding-top:calc(var(--space-unit) * 1.25);border-top:1px dashed var(--color-border);display:flex;align-items:center;flex-wrap:wrap;gap:6px}.message__footer-label{font-size:10.5px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--color-text-faint);margin-right:2px}.source-pill{display:inline-flex;align-items:center;gap:6px;padding:3px 9px 3px 6px;border-radius:var(--radius-xs);font-size:11.5px;font-weight:500;background:var(--color-bg-tint);color:var(--color-text-muted);border:1px solid var(--color-border);cursor:pointer;transition:border-color .15s ease,background .15s ease,color .15s ease}.source-pill:hover{border-color:var(--color-border-strong);color:var(--color-text)}.source-pill.is-open{background:var(--color-accent-soft);border-color:color-mix(in srgb,var(--color-accent) 40%,transparent);color:var(--color-accent-fg)}.source-pill__num{display:inline-flex;align-items:center;justify-content:center;min-width:16px;padding:0 4px;border-radius:3px;font-family:var(--font-mono);font-size:10px;font-weight:700;background:var(--color-accent);color:var(--color-accent-contrast)}.message__actions{margin-left:auto;display:flex;gap:4px}.message__action{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:var(--radius-xs);border:none;background:transparent;color:var(--color-text-muted);font-size:11px;cursor:pointer;transition:color .15s ease,background .15s ease}.message__action:hover:not(:disabled){color:var(--color-text);background:var(--color-surface-2)}.message__action.is-done{color:var(--color-accent-fg)}.message__action:disabled{cursor:default;opacity:.7}.cite-pill{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 4px;border-radius:4px;font-family:var(--font-mono);font-size:10.5px;font-weight:700;background:var(--color-accent-soft);color:var(--color-accent-fg);border:1px solid color-mix(in srgb,var(--color-accent) 25%,transparent);margin:0 2px;vertical-align:2px;cursor:pointer;transition:background .15s ease,color .15s ease}.cite-pill:hover,.cite-pill.is-open{background:var(--color-accent);color:var(--color-accent-contrast)}.source-panel{flex:none;width:var(--source-panel-width);background:var(--color-bg-tint);border-left:1px solid var(--color-border);display:flex;flex-direction:column;min-height:0;animation:msg-fade .25s ease both}.source-panel__header{flex:none;display:flex;align-items:center;gap:var(--space-unit);padding:calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);border-bottom:1px solid 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