:root{color-scheme:dark;--bg:#0b0d12;--panel:#12151d;--panel2:#181c26;--line:#292e3d;--text:#eef1f7;--muted:#929aad;--accent:#ff8a3d}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,sans-serif}.app-shell{height:100dvh;display:grid;grid-template-columns:280px 1fr}.sidebar{background:var(--panel);border-right:1px solid var(--line);padding:20px 14px;display:flex;flex-direction:column;overflow:auto}.brand{font-size:20px;font-weight:700;display:flex;gap:11px;align-items:center;padding:0 8px 24px}.brand-mark{width:35px;height:35px;border-radius:10px;display:inline-grid;place-items:center;background:var(--accent);color:#18100a;font-weight:900}.sidebar-label{text-transform:uppercase;letter-spacing:.12em;font-size:11px;color:var(--muted);padding:8px}.chat-label{margin-top:18px}.sidebar nav{display:grid;gap:5px}.sidebar nav button,.secondary,.logout{border:0;text-align:left;color:var(--text);background:transparent;padding:10px 12px;border-radius:9px;cursor:pointer}.sidebar nav button:hover,.sidebar nav button.active,.secondary:hover{background:var(--panel2)}.secondary{border:1px solid var(--line);width:100%;margin-bottom:8px}.sidebar-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:14px;color:var(--muted);font-size:12px}.chat-main{min-width:0;display:grid;grid-template-rows:auto 1fr auto auto}header{height:70px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px}header h1{font-size:17px;margin:0}header span{font-size:12px;color:var(--muted)}#menu{display:none;background:none;border:0;color:white;font-size:22px}#messages{overflow:auto;padding:30px max(24px,calc((100% - 850px)/2));scroll-behavior:smooth}.message{display:flex;margin:16px 0}.message.user{justify-content:flex-end}.bubble{max-width:min(76%,700px);padding:13px 16px;border-radius:16px;background:var(--panel2);white-space:pre-wrap;overflow-wrap:anywhere}.message.user .bubble{background:#3a241a;border-bottom-right-radius:4px}.message.assistant .bubble{border-bottom-left-radius:4px}.meta{font-size:11px;color:var(--muted);margin-top:6px}.sources{font-size:12px;margin-top:10px}.sources a{color:#ffb27d}.welcome{text-align:center;color:var(--muted);margin:18vh auto}.welcome h2{color:var(--text)}#composer{display:flex;align-items:flex-end;gap:10px;margin:12px auto 22px;width:min(calc(100% - 40px),900px);background:var(--panel);border:1px solid var(--line);padding:10px;border-radius:16px}textarea{flex:1;resize:none;max-height:180px;border:0;outline:0;background:transparent;color:var(--text);font:inherit;padding:9px}button#send,.login-card button{border:0;border-radius:10px;padding:11px 18px;background:var(--accent);color:#1b110a;font-weight:700;cursor:pointer}button:disabled{opacity:.5}.file-button{font-size:25px;color:var(--muted);cursor:pointer}.file-button input{display:none}.cost-warning{background:#3b2c18;color:#ffd9a7;text-align:center;padding:9px}.hidden{display:none}.error{color:#ffd0d0;background:#3c1d22;padding:10px;border-radius:8px}.login-page{min-height:100dvh;display:grid;place-items:center}.login-card{width:min(400px,calc(100% - 32px));background:var(--panel);border:1px solid var(--line);padding:32px;border-radius:18px}.login-card form,.login-card label{display:grid;gap:8px}.login-card form{gap:18px;margin-top:24px}.login-card input{background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:12px}@media(max-width:760px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:280px;z-index:5;transform:translateX(-100%);transition:.2s}.sidebar.open{transform:none}#menu{display:block;margin-right:12px}header{padding:0 14px}.bubble{max-width:88%}}
.cost-warning button{margin-left:8px;border:1px solid #8d6838;border-radius:7px;background:#21180e;color:#ffd9a7;padding:5px 9px;cursor:pointer}