.chat-root{display:flex;flex-direction:column;flex:1;min-height:0}.page-section--chat{display:flex;flex-direction:column;min-height:calc(100dvh - 4rem);padding-bottom:var(--sp-4)}.chat-landing{position:relative;flex:1;display:flex;flex-direction:column;width:100%;max-width:var(--max-content);margin:0 auto}.chat-subline{margin-top:auto;margin-inline:auto;padding-bottom:var(--sp-4);text-align:center}.chat-landing-form{flex:1;display:flex;flex-direction:column;justify-content:center;margin-bottom:var(--sp-8)}.chat-hint{margin-top:var(--sp-3);font-family:var(--font-mono);font-size:.6rem;letter-spacing:.08em;color:var(--fg-faint)}.chat-suggestions{display:flex;flex-direction:column}.chat-suggestions-label{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;color:var(--fg-faint);margin-bottom:var(--sp-2)}.chat-suggestion{display:flex;align-items:baseline;gap:var(--sp-4);width:100%;padding:var(--sp-3) 0;background:transparent;border:none;border-top:1px solid var(--border);text-align:left;cursor:pointer;transition:opacity .2s ease}.chat-suggestion:last-child{border-bottom:1px solid var(--border)}.chat-suggestion:hover{opacity:.5}.chat-suggestion-index{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.1em;color:var(--fg-faint);flex-shrink:0}.chat-suggestion-text{font-family:var(--font-serif);font-size:1.1rem;line-height:1.4;letter-spacing:-.01em;color:var(--fg);font-optical-sizing:auto}.chat-subline{font-size:.75rem;line-height:1.6;color:var(--fg-faint)}.header-row-actions{display:flex;align-items:center;gap:var(--sp-5)}#chat-history-trigger{background:none;border:none;cursor:pointer;font-family:inherit}.chat-conversation .page-section--chat{height:calc(100dvh - 4rem);min-height:0}.chat-shell{display:flex;flex-direction:column;flex:1;min-height:0}.chat-messages{flex:1;overflow-y:auto;min-height:0;padding-bottom:var(--sp-16);scroll-behavior:smooth;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}.chat-messages:before{content:"";position:sticky;top:0;left:0;right:0;display:block;height:var(--sp-8);background:linear-gradient(to bottom,var(--bg),transparent);z-index:5;pointer-events:none;margin-bottom:calc(-1 * var(--sp-8))}.msg-group{margin-bottom:var(--sp-8);animation:msg-in .35s ease both}.msg-group--user{display:flex;flex-direction:column;align-items:flex-end}.msg-label{font-size:.6rem;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.2em;color:var(--fg-faint);margin-bottom:var(--sp-2)}.msg-text{font-size:.9375rem;line-height:1.75;word-wrap:break-word}.msg-text--user{color:var(--fg);text-align:left;max-width:85%;background:var(--surface);padding:var(--sp-2) var(--sp-4);border-radius:4px}.msg-text--assistant{font-family:var(--font-serif);font-size:1.125rem;line-height:1.7;letter-spacing:-.005em;color:var(--fg);font-optical-sizing:auto}.msg-actions{display:flex;gap:var(--sp-2);margin-top:var(--sp-2);opacity:0;transition:opacity .2s ease}.msg-group:hover .msg-actions{opacity:1}.msg-action{background:transparent;border:none;color:var(--fg-faint);cursor:pointer;padding:2px;display:inline-flex;align-items:center;justify-content:center;transition:color .2s ease}.msg-action:hover{color:var(--fg)}.chat-caret{display:inline-block;width:2px;height:1.05em;background:var(--fg);margin-top:var(--sp-1);animation:caret-blink 1s steps(2,start) infinite}.typing-indicator{display:inline-flex;gap:.3rem;align-items:center;padding:var(--sp-1) 0}.typing-dot{display:inline-block;width:5px;height:5px;background:var(--fg-muted);border-radius:50%;animation:blink 1.4s infinite both}.chat-form{display:flex;gap:var(--sp-3);padding-top:var(--sp-4);align-items:flex-end;flex-shrink:0}.chat-shell .chat-form{position:sticky;bottom:0;z-index:10;flex-shrink:0;background:var(--bg);padding-block:var(--sp-4) var(--sp-2)}.chat-shell .chat-form:before{content:"";position:absolute;left:0;right:0;top:calc(-1 * var(--sp-12));height:var(--sp-12);background:linear-gradient(to bottom,transparent,var(--bg));pointer-events:none}.chat-textarea{flex:1;background:transparent;border:none;border-bottom:1px solid transparent;outline:none;color:var(--fg);font-size:.9375rem;font-family:var(--font-sans);line-height:1.7;padding:var(--sp-1) 0;resize:none;min-height:1.75rem;max-height:12rem;transition:border-color .2s ease}.chat-form--large .chat-textarea{font-size:1.125rem}.chat-textarea:focus{border-bottom-color:var(--fg)}.chat-textarea:disabled{opacity:.3}.chat-textarea::placeholder{color:var(--fg-faint)}.chat-form-buttons{display:flex;gap:var(--sp-2);align-items:center;flex-shrink:0;margin-bottom:2px}.chat-send-btn{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 var(--sp-4);border:1px solid var(--fg);background:var(--fg);color:var(--bg)!important;cursor:pointer;font-family:var(--font-serif);font-size:1rem;font-weight:400;line-height:1;letter-spacing:0;transition:opacity .15s ease}.chat-send-btn:disabled{opacity:.2;cursor:default}.chat-send-btn:not(:disabled):hover{opacity:.82}.chat-stop-btn{background:transparent;border:1px solid var(--border);color:var(--fg-muted);cursor:pointer;width:28px;height:28px;display:flex;align-items:center;justify-content:center;transition:opacity .2s ease;padding:0}.chat-stop-btn:hover{opacity:.5}.error-block{padding:var(--sp-3) 0;display:flex;align-items:center;gap:var(--sp-3)}.error-text{font-size:.8125rem;color:#c00;flex:1}.error-dismiss{background:transparent;border:none;color:var(--fg-faint);cursor:pointer;font-size:.65rem;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.15em;transition:color .2s ease}.error-dismiss:hover{color:var(--fg)}.scroll-bottom-btn{position:sticky;bottom:var(--sp-2);left:50%;transform:translate(-50%);background:var(--bg);border:1px solid var(--border);color:var(--fg-muted);cursor:pointer;padding:var(--sp-1) var(--sp-2);transition:opacity .2s ease;z-index:10}.scroll-bottom-btn:hover{opacity:.5}.markdown{font-family:var(--font-serif);font-size:1.125rem;line-height:1.7;letter-spacing:-.005em;color:var(--fg)}.markdown p{margin-bottom:.75em}.markdown p:last-child{margin-bottom:0}.markdown ul,.markdown ol{margin:.5em 0;padding-left:1.4em}.markdown li{margin-bottom:.25em}.markdown h1,.markdown h2,.markdown h3,.markdown h4{margin-top:1.25em;margin-bottom:.5em;font-weight:600;color:var(--fg);letter-spacing:-.01em}.markdown a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:opacity .15s ease}.markdown a:hover{opacity:.5}.markdown strong{font-weight:600}.code-block-wrapper{position:relative;margin:1em 0}.code-block{background:var(--surface);padding:var(--sp-4);overflow-x:auto;font-size:.8125rem;font-family:var(--font-mono);line-height:1.5;border:1px solid var(--border)}.code-inline{background:var(--surface);padding:.125rem .375rem;font-size:.8125rem;font-family:var(--font-mono);border:1px solid var(--border)}.code-copy{position:absolute;top:var(--sp-2);right:var(--sp-2);background:var(--bg);border:1px solid var(--border);color:var(--fg-muted);cursor:pointer;padding:var(--sp-1) var(--sp-2);font-size:.65rem;font-family:var(--font-mono);display:flex;align-items:center;gap:var(--sp-1);transition:opacity .2s ease}.code-copy:hover{opacity:.5}.code-copy-text{font-size:.6rem}.sources{margin-top:var(--sp-4);padding-top:var(--sp-3);border-top:1px solid var(--border)}.sources-label{display:block;font-size:.6rem;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.3em;color:var(--fg-faint);margin-bottom:var(--sp-2)}.sources-list{display:flex;flex-direction:column;gap:var(--sp-1)}.source-item{display:flex;align-items:baseline;gap:var(--sp-3)}.source-index{font-family:var(--font-mono);font-size:.6rem;color:var(--fg-faint);flex-shrink:0;min-width:1.2em;text-align:right}.source-link{font-size:.8rem;color:var(--fg);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:opacity .15s ease}.source-link:hover{opacity:.5}.source-text{font-size:.8rem;color:var(--fg-muted)}.source-type{font-family:var(--font-mono);font-size:.55rem;text-transform:uppercase;letter-spacing:.12em;color:var(--fg-faint)}sup.citation a{font-family:var(--font-mono);font-size:.75em;vertical-align:super;line-height:0;text-decoration:none;color:var(--fg-muted);margin:0 .15em;cursor:pointer;transition:color .15s ease}sup.citation a:hover{color:var(--fg)}.chat-history{flex:1}.chat-history-header{display:flex;align-items:center;justify-content:space-between;margin-top:var(--sp-16);margin-bottom:var(--sp-4)}.chat-history-title{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.3em;text-transform:uppercase;color:var(--fg-faint)}.chat-history-back{background:none;border:none;cursor:pointer;color:var(--fg);padding:var(--sp-1);display:flex;align-items:center;justify-content:center;transition:opacity .15s ease}.chat-history-back:hover{opacity:.5}.chat-history-new{align-self:flex-start;display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 var(--sp-4);border:1px solid var(--fg);background:var(--fg);color:var(--bg)!important;font-family:var(--font-serif);font-size:1rem;font-weight:400;line-height:1;letter-spacing:0;margin-block:var(--sp-6) var(--sp-16);cursor:pointer;transition:opacity .15s ease}.chat-history-new:hover{opacity:.82}.chat-history-list{display:flex;flex-direction:column}.chat-history-empty{padding:var(--sp-8) 0;font-size:.875rem;color:var(--fg-faint)}.chat-history-item{padding:var(--sp-4) 0;border-bottom:1px solid var(--border);cursor:pointer;transition:opacity .2s ease;display:flex;align-items:center;gap:var(--sp-3)}.chat-history-item:first-child{border-top:1px solid var(--border)}.chat-history-item:hover{opacity:.6}.chat-history-item-title{font-family:var(--font-serif);font-size:1.05rem;line-height:1.4;letter-spacing:-.005em;color:var(--fg);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}.chat-history-item--active .chat-history-item-title{font-style:italic}.chat-history-item-meta{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.08em;color:var(--fg-faint);flex-shrink:0}.chat-history-rename{width:100%;background:transparent;border:none;border-bottom:1px solid var(--fg);outline:none;color:var(--fg);font-family:var(--font-serif);font-size:1.05rem;line-height:1.4;padding:0}.chat-history-item-actions{display:flex;gap:var(--sp-3);flex-shrink:0}.chat-history-item-action{background:none;border:none;cursor:pointer;font-family:inherit;font-size:.8rem;color:var(--fg);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;padding:4px 0;transition:opacity .15s ease}.chat-history-item-action:hover{opacity:.5}.chat-history-item-action--danger{color:var(--fg-muted)}.chat-history-item-action--danger:hover{opacity:.5;color:#c00}@keyframes msg-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes blink{0%,20%{opacity:0}50%{opacity:1}80%,to{opacity:0}}@keyframes caret-blink{50%{opacity:0}}@media(max-width:640px){.chat-suggestion-text{font-size:1rem}.msg-text--assistant,.markdown{font-size:1.0625rem}.msg-text--user{max-width:90%}.chat-messages{padding-bottom:var(--sp-12)}.chat-shell .chat-form:before{top:calc(-1 * var(--sp-8));height:var(--sp-8)}.chat-history-item{flex-wrap:wrap}.chat-history-item-title{white-space:normal}.chat-history-item-meta,.chat-history-item-actions{width:100%}}