:root{--bubble:#00000014;--muted:#0000008c;--line:#00000026;--overlay:#00000073;--cite:#8a2535;--miss:#bd6324;--pad:16px;--pad-sm:12px;--gap:8px;--gap-sm:4px;--text-sm:12px;--mono:ui-monospace, monospace}*{box-sizing:border-box;margin:0;padding:0}body{font:15px/1.6 system-ui,sans-serif}input,button,textarea{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:none}#chat-view{flex-direction:column;height:100dvh;display:flex}.chat-nav{padding:var(--gap) var(--pad);border-bottom:1px solid var(--line);flex-shrink:0;justify-content:space-between;align-items:center;display:flex}#messages{padding:var(--pad);flex:1;overflow-y:auto}.btn-ghost{padding:var(--gap);color:var(--muted)}.btn-send{padding:var(--pad-sm);color:#fff;background:#000;flex-shrink:0;line-height:1}.btn-send:disabled{opacity:.35;cursor:default}.message-composer{align-items:flex-end;gap:var(--gap);padding:var(--gap) var(--pad);flex-shrink:0;display:flex}#msg-input{padding:var(--gap) var(--pad-sm);border:1px solid var(--line);font-family:var(--mono);resize:none;flex:1}#msg-input:focus{border-color:#000;outline:none}#msg-input:disabled{opacity:.5}#msg-counter{text-align:right;padding:0 var(--pad) var(--gap);font-size:var(--text-sm);color:var(--muted);display:block}.message{margin-bottom:var(--gap)}.message--user{justify-content:flex-end;display:flex}.message-stack{background:var(--bubble);flex-direction:column;width:fit-content;max-width:100%;display:flex}.message--user .message-stack{color:#fff;background:#000}.message-bubble{padding:var(--gap) var(--pad-sm);font-family:var(--mono);overflow-wrap:break-word}.message-bubble p{margin-bottom:.5em}.message-bubble p:last-child{margin-bottom:0}.message-bubble ul,.message-bubble ol{padding-left:var(--pad)}.message-bubble--loading{color:var(--muted)}.message-footer{padding:var(--gap-sm);justify-content:flex-end;display:flex}.btn-copy{padding:var(--gap-sm)}.citation{color:var(--cite);cursor:pointer;border-bottom:1px solid}.citation-miss{color:var(--miss);border-bottom:1px solid}dialog{border:none;width:min(720px,94vw);max-height:min(82vh,760px);margin:auto;padding:0;position:fixed;inset:0}dialog::backdrop{background:var(--overlay)}.modal__content{max-height:inherit;flex-direction:column;display:flex}.modal__header{padding:var(--pad-sm) var(--pad);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;display:flex}.modal__header h3{font-size:inherit}#modal-meta{padding:var(--pad-sm) var(--pad) 0;font-size:var(--text-sm);color:var(--cite)}#modal-body{padding:var(--pad-sm) var(--pad);white-space:pre-wrap;font-family:var(--mono);flex:1;overflow-y:auto}#toast-container{pointer-events:none;position:fixed;bottom:64px;left:50%;transform:translate(-50%)}.toast{padding:var(--gap-sm) var(--pad-sm);background:var(--cite);color:#fff;white-space:nowrap}