:root{--bg: #f7f3ed;--surface: #ffffff;--primary: #1a3a5c;--accent: #c8732a;--text: #1c1917;--muted: #78716c;--border: #e8e3dc}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text)}.app{max-width:720px;margin:0 auto;padding:16px;display:flex;flex-direction:column;height:100vh}.app-header{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--border);margin-bottom:12px}.app-icon{font-size:28px;line-height:1}.app-header h1{font-size:18px;font-weight:600;color:var(--primary);margin:0}.app-header p{font-size:12px;color:var(--muted);margin:0}.messages-pane{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.empty-state{display:flex;flex-direction:column;align-items:center;text-align:center;padding-top:48px;gap:8px}.empty-icon{font-size:48px;line-height:1}.empty-state h2{font-size:20px;font-weight:600;color:var(--primary);margin:0}.empty-state p{font-size:14px;color:var(--muted);max-width:360px;line-height:1.6}.suggestions{display:flex;flex-direction:column;gap:8px;margin-top:8px;width:100%;max-width:420px}.suggestion-btn{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:10px;padding:10px 14px;font-size:14px;color:var(--text);text-align:left;cursor:pointer;transition:background .15s,box-shadow .15s}.suggestion-btn:hover{background:#fdf8f3;box-shadow:0 2px 8px #0000000f}.msg-wrapper{max-width:80%;display:flex;flex-direction:column}.msg-user{align-self:flex-end}.msg-bot{align-self:flex-start}.bubble{padding:12px 16px;border-radius:18px;font-size:14px;line-height:1.6;white-space:pre-wrap}.msg-user .bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.msg-bot .bubble{background:var(--surface);color:var(--text);border:1px solid var(--border);box-shadow:0 1px 4px #0000000f;border-bottom-left-radius:4px}.refusal-label{font-size:12px;color:var(--muted);margin-top:6px;font-style:italic}.source-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.source-pill{display:inline-flex;align-items:center;gap:4px;background:#f0ebe4;border:1px solid var(--border);border-radius:20px;padding:3px 10px;font-size:12px;color:var(--muted);text-decoration:none;transition:background .15s,color .15s}.source-pill:hover{background:#e8e0d6;color:var(--text)}.source-pill--no-link{cursor:default}.input-row{display:flex;gap:8px;padding-top:12px;border-top:1px solid var(--border)}.chat-textarea{flex:1;resize:none;border:1.5px solid var(--border);border-radius:14px;padding:10px 14px;font-size:15px;font-family:inherit;outline:none;line-height:1.5;background:var(--surface)}.chat-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #c8732a1f}.send-btn{width:44px;height:44px;align-self:flex-end;border:none;border-radius:50%;background:var(--border);color:var(--muted);font-size:20px;cursor:default;transition:background .15s,color .15s}.send-btn--active{background:var(--accent);color:#fff;cursor:pointer}.send-btn--active:hover{background:#b5621f}.feedback-row{display:flex;align-items:center;gap:6px;margin-top:8px}.feedback-btn{border:none;background:none;cursor:pointer;font-size:14px;padding:3px 6px;border-radius:6px;opacity:.45;transition:opacity .15s,color .15s}.feedback-btn:hover{opacity:1}.feedback-btn--up:hover{color:#16a34a}.feedback-btn--down:hover{color:#dc2626}.feedback-thanks{font-size:12px;color:var(--muted);margin-top:8px;font-style:italic}.error-banner{padding:10px 14px;border-radius:10px;background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;font-size:14px}.loading-dots{display:flex;gap:6px;padding:12px 0}.loading-dots span{width:8px;height:8px;border-radius:50%;background:var(--muted);animation:pulse 1.2s ease-in-out infinite}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,80%,to{opacity:.25;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}:root{--bg: #f7f7f4;--surface: #ffffff;--panel-soft: #f1f1ed;--sidebar: #171717;--sidebar-soft: #252525;--primary: #171717;--accent: #0f766e;--accent-dark: #115e59;--text: #171717;--muted: #6b6b63;--border: #deded7;--shadow: 0 24px 80px rgba(20, 20, 16, .1)}body{min-width:320px;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:radial-gradient(circle at 20% 0%,rgba(15,118,110,.12),transparent 32rem),linear-gradient(135deg,#fbfbf8 0%,var(--bg) 52%,#efefe9 100%)}button,textarea{font:inherit}.app{display:grid;grid-template-columns:280px minmax(0,1fr);max-width:none;height:auto;min-height:100vh;margin:0;padding:0}.sidebar{position:sticky;top:0;height:100vh;padding:20px;background:var(--sidebar);color:#f8f8f2;display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid rgba(255,255,255,.08)}.brand{display:flex;align-items:center;gap:12px}.brand-mark,.avatar,.empty-icon{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-weight:700}.brand-mark{width:36px;height:36px;border-radius:10px;box-shadow:0 10px 26px #0f766e59}.brand h1{margin:0;font-size:15px;font-weight:650;letter-spacing:-.01em}.brand p{margin:2px 0 0;color:#bdbdb5;font-size:13px}.sidebar-card{display:flex;align-items:center;gap:10px;padding:14px;border-radius:16px;background:var(--sidebar-soft);color:#d7d7cf;font-size:13px;line-height:1.4}.status-dot{width:9px;height:9px;flex:0 0 auto;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px #22c55e24}.chat-shell{min-height:100vh;display:flex;flex-direction:column}.chat-header{width:min(100%,920px);margin:0 auto;padding:24px 28px 12px;display:flex;align-items:center;justify-content:space-between;gap:16px}.eyebrow{margin:0 0 4px;color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.chat-header h2{margin:0;font-size:clamp(22px,3vw,32px);font-weight:680;letter-spacing:-.04em}.header-pill{padding:7px 11px;border:1px solid var(--border);border-radius:999px;color:var(--muted);background:#ffffffa6;font-size:12px;white-space:nowrap}.messages-pane{width:min(100%,920px);margin:0 auto;padding:20px 28px 176px;flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:22px}.empty-state{width:min(100%,720px);margin:auto;padding:36px 0 18px}.empty-icon{width:48px;height:48px;border-radius:14px;margin-bottom:18px;font-size:22px;box-shadow:0 18px 42px #0f766e3d}.empty-state h2{margin:0;font-size:clamp(30px,6vw,52px);font-weight:720;letter-spacing:-.06em;color:var(--text)}.empty-state p{max-width:560px;margin:14px 0 0;color:var(--muted);font-size:16px;line-height:1.7}.suggestions{width:min(100%,680px);max-width:none;margin-top:30px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.suggestion-btn{min-height:94px;padding:16px;border:1px solid var(--border);border-left:1px solid var(--border);border-radius:18px;background:#ffffffb8;color:var(--text);box-shadow:0 8px 30px #1717170a;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.suggestion-btn:hover{transform:translateY(-2px);background:#ffffffe6;border-color:#0f766e59;box-shadow:0 16px 44px #17171714}.msg-wrapper{max-width:none;display:flex;gap:14px;animation:message-in .18s ease-out both}.message-content{min-width:0;display:flex;flex-direction:column}.msg-user{align-self:flex-end;max-width:min(74%,680px)}.msg-user .message-content{align-items:flex-end}.msg-bot{align-self:stretch;max-width:820px}.avatar{width:30px;height:30px;margin-top:3px;flex:0 0 auto;border-radius:8px;font-size:14px}.bubble{font-size:15px;line-height:1.72}.msg-user .bubble{padding:10px 15px;border-radius:20px;background:#2f2f2f;color:#fff;box-shadow:0 10px 30px #1717171f}.msg-bot .bubble{padding:2px 0;border:0;border-radius:0;background:transparent;color:var(--text);box-shadow:none}.refusal-label{width:fit-content;margin-top:10px;padding:6px 10px;border-radius:999px;background:#fff7ed;color:#9a3412;font-size:12px;font-style:normal}.source-list{gap:8px;margin-top:14px}.source-pill{max-width:100%;padding:7px 10px;border-radius:999px;background:var(--surface);color:#3f3f39;line-height:1.2;box-shadow:0 8px 24px #1717170a}.source-pill:hover{transform:translateY(-1px);border-color:#0f766e59;color:var(--accent-dark);background:var(--surface)}.composer-shell{position:fixed;right:0;bottom:0;left:280px;padding:18px 28px 20px;background:linear-gradient(180deg,rgba(247,247,244,0),rgba(247,247,244,.96) 24%,var(--bg) 100%)}.input-row,.error-banner,.loading-dots,.composer-note{width:min(100%,820px);margin-left:auto;margin-right:auto}.input-row{display:flex;align-items:flex-end;gap:10px;padding:10px;border:1px solid var(--border);border-radius:26px;background:#ffffffeb;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.chat-textarea{min-height:50px;max-height:180px;border:0;border-radius:18px;padding:13px 8px 11px 14px;background:transparent}.chat-textarea:focus{border-color:transparent;box-shadow:none}.chat-textarea::placeholder{color:#8c8c84}.send-btn{width:42px;height:42px;flex:0 0 auto;border-radius:14px;background:#d7d7d0;color:#74746c;line-height:1;transition:transform .15s ease,background .15s ease,color .15s ease}.send-btn--active{background:var(--text);color:#fff}.send-btn--active:hover{transform:translateY(-1px);background:var(--accent-dark)}.composer-note{margin-top:10px;margin-bottom:0;color:var(--muted);font-size:12px;text-align:center}.feedback-row{margin-top:12px}.feedback-btn{border:1px solid transparent;border-radius:9px;transition:opacity .15s ease,background .15s ease,border-color .15s ease}.feedback-btn:hover{background:var(--surface);border-color:var(--border)}.feedback-thanks{margin-top:10px;font-style:normal}.page-footer{width:min(100%,820px);margin:12px auto 0;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:12px;line-height:1.4;text-align:center}.page-footer a{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent;transition:color .15s ease,border-color .15s ease}.page-footer a:hover{color:var(--accent-dark);border-color:#0f766e59}.app--feedback{display:block;min-height:100vh}.feedback-page{width:min(100%,760px);min-height:100vh;margin:0 auto;padding:42px 22px 28px;display:flex;flex-direction:column}.back-link{width:fit-content;color:var(--muted);font-size:13px;text-decoration:none}.back-link:hover{color:var(--accent-dark)}.feedback-panel{margin:auto 0}.feedback-panel h1{max-width:620px;margin:0;color:var(--text);font-size:clamp(30px,5vw,48px);font-weight:720;line-height:1.08}.feedback-copy{max-width:580px;margin:16px 0 0;color:var(--muted);font-size:15px;line-height:1.6}.site-feedback-form{margin-top:28px;display:flex;flex-direction:column;gap:12px}.feedback-kind{display:flex;flex-wrap:wrap;gap:8px}.feedback-kind label{display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border:1px solid var(--border);border-radius:999px;background:#ffffffc2;color:var(--text);font-size:14px;cursor:pointer}.site-feedback-label{color:var(--text);font-size:13px;font-weight:650}.site-feedback-form textarea{width:100%;resize:vertical;border:1px solid var(--border);border-radius:18px;padding:14px;background:#ffffffdb;color:var(--text);font:inherit;line-height:1.5;outline:none}.site-feedback-form textarea:focus{border-color:#0f766e8c;box-shadow:0 0 0 3px #0f766e1f}.feedback-form-footer{display:flex;align-items:center;justify-content:space-between;gap:12px}.feedback-form-footer span{color:var(--muted);font-size:12px}.feedback-form-footer button{border:0;border-radius:12px;padding:10px 16px;background:var(--text);color:#fff;cursor:pointer}.feedback-form-footer button:disabled{cursor:wait;opacity:.7}.feedback-success{margin-top:28px;padding:14px 16px;border:1px solid rgba(34,197,94,.28);border-radius:14px;background:#f0fdf4c7;color:#166534;font-size:14px}.error-banner{margin-bottom:10px}.loading-dots{margin-bottom:10px;padding:0 0 0 2px}@keyframes message-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 860px){.app{display:block}.sidebar{position:static;height:auto;padding:14px 18px;flex-direction:row;align-items:center}.sidebar-card,.header-pill{display:none}.chat-shell{min-height:calc(100vh - 64px)}.chat-header{padding:18px 18px 8px}.messages-pane{padding:14px 18px 174px}.suggestions{grid-template-columns:1fr}.suggestion-btn{min-height:auto}.msg-user{max-width:88%}.composer-shell{left:0;padding:16px 14px 14px}}@media (max-width: 520px){.brand-mark{width:32px;height:32px}.brand h1{font-size:14px}.brand p,.eyebrow{display:none}.chat-header h2{font-size:22px}.messages-pane{gap:18px}.msg-wrapper{gap:10px}.avatar{width:28px;height:28px}.bubble{font-size:14px}}