.chat-root{--ch-text:var(--text);--ch-dim:var(--text-muted);--ch-faint:var(--text-faint);--ch-accent:var(--success);--ch-accent-dark:var(--success);--ch-brand:var(--surface-inv);--ch-brand-dark:var(--text-muted);--ch-glass:color-mix(in srgb,var(--surface) 72%,transparent);--ch-glass-strong:color-mix(in srgb,var(--surface) 90%,transparent);--ch-glass-border:var(--border);--ch-line-border:var(--border);position:relative;color:var(--ch-text);font-family:var(--font-sans);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;background:var(--bg);overflow-x:hidden}.chat-root:before{content:"";position:fixed;inset:0;z-index:0;background:radial-gradient(600px 420px at 12% 8%,rgba(46,139,87,.22),transparent 60%),radial-gradient(560px 460px at 90% 18%,rgba(62,107,144,.2),transparent 60%),radial-gradient(700px 520px at 50% 100%,rgba(155,130,220,.14),transparent 60%),var(--surface-2);filter:blur(30px)}.chat-root *{box-sizing:border-box}.chat-root a{color:inherit;text-decoration:none}.chat-root button{font-family:inherit;cursor:pointer}.chat-root>*{position:relative;z-index:1}.chat-topbar{display:flex;align-items:center;gap:10px;padding:13px 22px;background:var(--ch-glass);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--ch-glass-border);flex-shrink:0}.chat-brand-mark{width:28px;height:28px;border-radius:var(--radius-md);display:grid;place-items:center;background:linear-gradient(135deg,var(--ch-accent),var(--ch-brand));color:var(--text);font:italic 22px/1 var(--font-sans);box-shadow:none}.chat-brand-title{font-family:var(--font-sans);font-size:16px;font-weight:500;letter-spacing:-.01em}.chat-brand-sub{font-size:13.5px;color:var(--ch-faint);margin-left:2px}.chat-topnav{margin-left:auto;display:flex;gap:16px}.chat-topnav a{font-size:14.5px;font-weight:500;color:var(--ch-dim)}.chat-topnav a:hover{color:var(--ch-text)}.chat-scroll{flex:1;overflow-y:auto}.chat-shell{max-width:720px;margin:0 auto;padding:28px 20px 150px}.chat-empty{display:flex;flex-direction:column;align-items:center;text-align:center;padding:64px 16px 20px}.chat-empty-mark{width:56px;height:56px;border-radius:var(--radius-lg);display:grid;place-items:center;background:linear-gradient(135deg,var(--ch-accent),var(--ch-brand));color:var(--text);font:italic 40px/1 var(--font-sans);margin-bottom:20px;box-shadow:none}.chat-empty-title{font-size:26px;font-weight:500;font-family:var(--font-sans);margin-bottom:8px;background:linear-gradient(90deg,var(--ch-accent-dark),var(--ch-brand-dark));-webkit-background-clip:text;background-clip:text;color:transparent}.chat-empty-sub{font-size:14.5px;color:var(--ch-dim);max-width:440px;line-height:1.7;margin-bottom:28px}.chat-suggestions{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;max-width:580px}.chat-suggestion{border:1px solid var(--ch-glass-border);background:var(--ch-glass);backdrop-filter:blur(12px);border-radius:var(--radius-lg);padding:10px 17px;font-size:14.5px;font-weight:500;color:var(--ch-dim);transition:.15s;box-shadow:none}.chat-suggestion:hover{border-color:var(--ch-brand);color:var(--ch-brand-dark);background:var(--ch-glass-strong);transform:translateY(-1px)}.chat-msg-row{display:flex;gap:11px;margin-bottom:26px;align-items:flex-start}.chat-msg-row.chat-user{flex-direction:row-reverse}.chat-avatar{width:28px;height:28px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;font-size:14.5px;font-weight:500;color:var(--text-on-inv);background:var(--ch-brand);margin-top:2px}.chat-avatar.chat-avatar-assistant{background:linear-gradient(135deg,var(--ch-accent),var(--ch-brand));font:italic 16px/1 var(--font-sans)}.chat-bubble-col{display:flex;flex-direction:column;gap:12px;max-width:84%}.chat-user .chat-bubble-col{align-items:flex-end}.chat-bubble{font-size:15px;line-height:1.7;white-space:pre-wrap}.chat-user .chat-bubble{background:linear-gradient(135deg,var(--ch-accent),var(--ch-accent-dark));color:var(--text);border-radius:var(--radius-lg);border-bottom-right-radius:var(--radius-sm);padding:11px 16px;box-shadow:none}.chat-assistant .chat-bubble{color:var(--ch-text);padding:2px 0}.chat-answer-intro{font-size:15px;color:var(--ch-dim);margin-bottom:2px}.chat-answer-lines{display:flex;flex-direction:column;gap:9px;margin-top:4px}.chat-answer-line{display:flex;align-items:baseline;gap:8px;font-size:16px;line-height:1.7}.chat-answer-line:before{content:"•";color:var(--ch-accent);flex-shrink:0}.chat-cite-badge{display:inline-flex;align-items:center;justify-content:center;width:17px;height:17px;border-radius:50%;background:var(--ch-brand-bg,var(--surface-2));color:var(--ch-brand-dark);font-size:12px;font-weight:500;flex-shrink:0;vertical-align:middle;margin-left:2px;border:none;transition:.12s}.chat-cite-badge:hover{background:var(--ch-brand);color:var(--text-on-inv);transform:scale(1.1)}.chat-typing{display:flex;gap:4px;padding:8px 2px}.chat-typing span{width:6px;height:6px;border-radius:50%;background:var(--ch-faint);animation:chat-bounce 1.1s ease-in-out infinite}.chat-typing span:nth-child(2){animation-delay:.15s}.chat-typing span:nth-child(3){animation-delay:.3s}@keyframes chat-bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}.chat-citations-label{font-size:12.5px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--ch-faint);margin-top:6px}.chat-citations{display:flex;gap:9px;overflow-x:auto;padding:4px 2px 8px;width:100%;scrollbar-width:thin}.chat-citation-card{flex:0 0 auto;width:220px;display:flex;flex-direction:column;gap:6px;background:var(--ch-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--ch-glass-border);border-radius:var(--radius-lg);padding:11px 12px;box-shadow:none;transition:.15s;scroll-snap-align:start}.chat-citation-card:hover{background:var(--ch-glass-strong);transform:translateY(-2px);box-shadow:none}.chat-citation-top{display:flex;align-items:center;gap:7px}.chat-citation-num{width:17px;height:17px;border-radius:50%;background:var(--ch-accent);color:var(--text-on-inv);place-items:center}.chat-citation-num,.chat-source-logo{font-size:12px;font-weight:500;display:grid;flex-shrink:0}.chat-source-logo{width:18px;height:18px;border-radius:var(--radius-sm);-o-object-fit:cover;object-fit:cover;background:rgba(62,107,144,.12);place-items:center;color:var(--ch-brand-dark)}.chat-citation-source{font-size:12.5px;font-weight:500;color:var(--ch-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-citation-headline{font-size:13.5px;font-weight:500;color:var(--ch-text);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.chat-citation-time{font-size:12.5px;color:var(--ch-faint)}.chat-composer-wrap{position:sticky;bottom:0;padding:14px 20px 22px;flex-shrink:0}.chat-composer-wrap:before{content:"";position:absolute;inset:-30px 0 0;z-index:-1;background:linear-gradient(to top,var(--surface-2) 55%,transparent)}.chat-composer{max-width:720px;margin:0 auto;display:flex;align-items:flex-end;gap:8px;background:var(--ch-glass-strong);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--ch-glass-border);border-radius:var(--radius-lg);padding:9px 9px 9px 19px;box-shadow:none}.chat-composer textarea{flex:1;border:none;outline:none;resize:none;font-family:inherit;font-size:15px;line-height:1.5;max-height:140px;padding:7px 0;background:transparent;color:var(--ch-text)}.chat-composer textarea::-moz-placeholder{color:var(--ch-faint)}.chat-composer textarea::placeholder{color:var(--ch-faint)}.chat-send{width:38px;height:38px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--ch-accent),var(--ch-accent-dark));color:var(--text);display:grid;place-items:center;flex-shrink:0;transition:.15s;box-shadow:none}.chat-send:disabled{background:rgba(26,31,28,.12);color:var(--ch-faint);box-shadow:none;cursor:not-allowed}.chat-send:not(:disabled):hover{transform:scale(1.06)}.chat-disclaimer{text-align:center;font-size:12.5px;color:var(--ch-faint);margin-top:10px}