@import"https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600&display=swap";:root{--ink: #053F68;--muted: #376586;--paper: #F8FDFF;--paper-dark: #E7F3F8;--card: #ffffff;--border: #CDD9E1;--accent: #D1343E;--accent-dark: #BF3440;--sea: #083952;--shadow: 0 20px 50px rgba(6, 34, 49, .08);--sidebar-width: 280px;--sidebar-bg: #FFFFFF}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Space Grotesk,Segoe UI,system-ui,-apple-system,sans-serif;color:var(--ink);background:linear-gradient(180deg,#f8fdff,#e7f3f8)}.layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);height:100vh;position:sticky;top:0;background:var(--sidebar-bg);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{padding:20px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:12px}.sidebar-header h2{margin:0;font-size:16px;font-weight:600;color:var(--ink)}.new-chat-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border:1px solid var(--border);border-radius:12px;background:var(--card);color:var(--ink);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}.new-chat-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.conversation-list{flex:1;overflow-y:auto;padding:12px}.conversation-loading{display:flex;justify-content:center;padding:24px}.sidebar-spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--muted);border-radius:50%;animation:spin .8s linear infinite}.conversation-item{padding:12px 14px;border-radius:10px;cursor:pointer;transition:background .15s ease;margin-bottom:4px;display:flex;align-items:flex-start;gap:8px}.conversation-item:hover{background:#0000000a}.conversation-item.active{background:#d1343e1f}.conversation-content{flex:1;min-width:0}.conversation-title{font-size:14px;font-weight:500;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.conversation-time{font-size:11px;color:var(--muted)}.conversation-preview{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:4px}.conversation-empty{padding:20px;text-align:center;color:var(--muted);font-size:13px}.sidebar-footer{padding:16px;border-top:1px solid var(--border);margin-top:auto}.logout-btn{display:flex;align-items:center;gap:8px;width:100%;padding:10px 14px;border:none;border-radius:10px;background:transparent;color:var(--muted);font-family:inherit;font-size:14px;cursor:pointer;transition:background .15s ease,color .15s ease}.logout-btn:hover{background:#0000000d;color:var(--ink)}.logout-btn svg{flex-shrink:0}.conversation-delete{flex-shrink:0;width:28px;height:28px;padding:0;border:none;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s ease,background .15s ease,color .15s ease}.conversation-item:hover .conversation-delete{opacity:1}.conversation-delete:hover{background:#d1343e1a;color:#d1343e}.conversation-delete:active{background:#d1343e33}.app{flex:1;max-width:900px;margin:0 auto;padding:48px 20px 64px;display:flex;flex-direction:column;gap:28px}.hero{display:flex;flex-direction:column;gap:12px}.tag{text-transform:uppercase;letter-spacing:.18em;font-size:11px;color:var(--muted);margin:0}h1{margin:0;font-size:clamp(32px,6vw,44px);color:var(--ink)}.lead{margin:0;max-width:620px;font-size:17px;line-height:1.5;color:var(--muted)}.chat{display:flex;flex-direction:column;gap:16px;padding:24px;min-height:260px;border-radius:24px;border:1px solid rgba(0,0,0,.03);background:#fffffff2;box-shadow:var(--shadow)}.chat.chat-empty{display:none}.message{display:flex;animation:fadeUp .3s ease both}.message.user{justify-content:flex-end}.bubble{max-width:70%;padding:16px 18px;border-radius:18px;background:var(--paper-dark);border:none;box-shadow:0 8px 20px #00000014;line-height:1.5;display:flex;flex-direction:column;gap:12px}.message.user .bubble{background:var(--accent);color:#fff;border-color:transparent}.bubble-content{white-space:normal}.bubble-content p{margin:0 0 10px}.bubble-content p:last-child{margin-bottom:0}.bubble-content ul,.bubble-content ol{margin:0 0 10px 20px;padding:0}.bubble-content li{margin-bottom:6px}.bubble-content code,code{background:#00000014;padding:2px 6px;border-radius:6px}.bubble-content blockquote{margin:8px 0 14px;padding:8px 12px;border-left:3px solid rgba(0,0,0,.2);background:#00000008;font-size:12px;line-height:1.4;color:#000000bf}.message.user .bubble-content blockquote{border-left-color:#fff9;background:#ffffff1f;color:#ffffffe6}.bubble-actions{display:flex;flex-wrap:wrap;gap:8px}.copy{border:1px solid rgba(0,0,0,.12);background:#fff;color:var(--ink);border-radius:999px;padding:6px 12px;font-size:12px;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.message.user .copy{background:#fff3;color:#fff;border-color:#fff6}.copy:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 16px #0000001f}.copy:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.copy.ghost{background:transparent}.typing{display:inline-flex;gap:6px;align-items:center}.typing span{width:8px;height:8px;border-radius:50%;background:#053f6859;animation:pulse 1s infinite ease-in-out}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}.citations{margin-top:8px;padding-left:18px;font-size:13px;color:#000000b3}.composer{padding:24px;border-radius:24px;border:1px solid var(--border);background:var(--card);box-shadow:var(--shadow)}.inputs{display:flex;flex-direction:column;gap:24px}.field{display:flex;flex-direction:column;gap:8px;font-size:14px}.label{text-transform:uppercase;letter-spacing:.12em;font-size:11px;color:var(--muted)}textarea,input[type=file]{width:100%;padding:12px 14px;border-radius:18px;border:1px solid var(--border);font-family:inherit;background:var(--paper);color:var(--ink)}textarea{resize:vertical;min-height:120px}.previews{display:flex;flex-wrap:wrap;gap:10px}.preview{width:70px;height:70px;border-radius:12px;border:1px solid var(--border);object-fit:cover}.preview-file{display:flex;align-items:center;min-height:70px;max-width:260px;padding:10px 12px;border-radius:12px;border:1px solid var(--border);background:var(--paper);font-size:13px;color:var(--ink)}.actions{margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}.send{display:inline-flex;align-items:center;gap:10px;padding:12px 22px;border:none;border-radius:999px;background:var(--accent);color:#fff;font-size:15px;cursor:pointer;transition:background .2s ease}.send:hover:not(:disabled){background:var(--accent-dark)}.send:disabled{opacity:.55;cursor:not-allowed;box-shadow:none}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;display:none}.spinner.active{display:inline-block}.hint{margin:0;font-size:12px;color:var(--muted)}.toast{position:fixed;bottom:24px;right:24px;padding:12px 20px;background:var(--ink);color:#fff;border-radius:10px;font-size:14px;z-index:1000;animation:fadeUp .3s ease}.toast.error{background:#d1343e}@keyframes pulse{0%,to{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-2px)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 900px){.sidebar{width:220px}}@media (max-width: 720px){.layout{flex-direction:column}.sidebar{width:100%;max-height:200px;border-right:none;border-bottom:1px solid var(--border)}.conversation-list{display:flex;flex-direction:row;overflow-x:auto;padding:8px 12px;gap:8px}.conversation-item{flex-shrink:0;width:160px;margin-bottom:0}.bubble{max-width:100%}.actions{flex-direction:column;align-items:stretch}}.header-actions{display:flex;gap:10px;flex-wrap:wrap}