@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap";:root{color-scheme:dark;--bg:#080d18;--panel:#101827;--panel2:#131f30;--line:rgba(172,195,224,.13);--muted:#91a0b6;--text:#f1f5fb;--cyan:#69d5e9;--blue:#7898ff;--gradient:linear-gradient(110deg,#70d9e7,#8c9aff 60%,#c1a2ff)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:DM Sans,sans-serif}button,input,textarea,select{font:inherit}button{cursor:pointer}.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);text-decoration:none;font:800 13px Manrope,sans-serif;letter-spacing:1.4px}.brand b{color:var(--cyan)}.brand-mark{width:30px;height:30px;border:1px solid rgba(105,213,233,.55);border-radius:9px;display:grid;place-items:center;color:var(--cyan);font:800 18px Manrope}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--cyan);font-weight:700}.auth-body{min-height:100vh;background:radial-gradient(ellipse at 50% 10%,#14263c 0,transparent 55%),var(--bg)}.auth-shell{width:min(100% - 36px,470px);margin:auto;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:35px}.auth-card{width:100%;padding:38px;border:1px solid var(--line);border-radius:22px;background:#101827e6;box-shadow:0 24px 90px #0005}.auth-card h1{font:800 34px Manrope;margin:13px 0 8px;letter-spacing:-1.4px}.auth-card>p{color:var(--muted);line-height:1.6;font-size:14px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#0b1320;padding:4px;border-radius:10px;margin:25px 0}.auth-tabs button{background:transparent;color:var(--muted);border:0;border-radius:7px;padding:11px}.auth-tabs button.active{background:#1b2a40;color:#fff}.field{display:grid;gap:8px;margin:17px 0}.field label{font-size:12px;color:#c5d0df}.field input{width:100%;background:#0a1321;border:1px solid var(--line);border-radius:9px;color:#fff;padding:14px;outline:none}.field input:focus,.composer:focus-within{border-color:#70cfe2;box-shadow:0 0 0 3px #70cfe21b}.hidden{display:none!important}.primary-btn{width:100%;border:0;border-radius:9px;padding:14px;background:var(--gradient);color:#09111d;font-weight:800;margin-top:8px}.primary-btn span{float:right}.form-error{min-height:18px;color:#ff9c9c;font-size:12px}.auth-legal,.back-link{font-size:11px;color:var(--muted);text-align:center;line-height:1.6}.back-link{text-decoration:none}.app-body{height:100vh;overflow:hidden}.app-shell{height:100%;display:grid;grid-template-columns:270px 1fr}.sidebar{background:#0b1220;border-right:1px solid var(--line);padding:22px 15px 14px;display:flex;flex-direction:column;min-height:0}.new-chat-btn{margin:27px 0 25px;padding:12px;border-radius:9px;background:#16253a;border:1px solid var(--line);color:#eaf5ff;text-align:left}.side-label{font-size:9px;letter-spacing:1.6px;color:#73839a;padding:0 9px 12px}.history-list{overflow:auto;flex:1}.history-item{display:flex;align-items:center;gap:7px;width:100%;text-align:left;background:transparent;border:0;color:#b7c4d6;padding:11px 10px;border-radius:8px;font-size:12px}.history-item:hover,.history-item.active{background:#18263a;color:#fff}.history-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.history-item button{border:0;background:transparent;color:#8293a8}.sidebar-bottom{border-top:1px solid var(--line);padding-top:14px}.sidebar-bottom>a{color:#a8b8cc;text-decoration:none;font-size:12px;display:block;padding:8px 8px 17px}.account-row{display:flex;align-items:center;gap:10px;padding:10px 6px}.avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#1d3950;color:var(--cyan);font-weight:700}.account-meta{min-width:0;display:grid;gap:3px;flex:1}.account-meta strong{font-size:12px}.account-meta small{font-size:10px;color:var(--muted);overflow:hidden;text-overflow:ellipsis}.icon-btn{border:0;background:transparent;color:#aab8cb;padding:8px;border-radius:7px}.icon-btn:hover{background:#1b2a40}.chat-main{display:flex;flex-direction:column;min-width:0;height:100%;background:radial-gradient(ellipse at 50% -20%,#172b40 0,transparent 50%),#0a111e}.chat-header{height:70px;flex:none;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px;gap:15px}.chat-header>div{display:grid;gap:5px}.chat-header strong{font:700 14px Manrope}.chat-header select{background:#121e2e;border:1px solid var(--line);color:#e6eef8;border-radius:8px;padding:9px 12px;font-size:12px;max-width:220px}.conversation{flex:1;overflow:auto;padding:36px 22px 20px}.welcome{max-width:700px;margin:8vh auto 0;text-align:center}.welcome-mark{width:52px;height:52px;border:1px solid #6fd4e65c;color:var(--cyan);border-radius:16px;display:grid;place-items:center;font:800 28px Manrope;margin:0 auto 23px;box-shadow:0 0 45px #69d5e91b}.welcome h1{font:800 clamp(34px,5vw,54px)/1.1 Manrope;letter-spacing:-2px;margin:17px 0}.welcome h1 span{background:var(--gradient);color:transparent;-webkit-background-clip:text;background-clip:text}.welcome p{color:var(--muted);font-size:14px;line-height:1.7}.suggestion-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:30px auto;max-width:560px}.suggestion-grid button{padding:14px;background:#121e2e;border:1px solid var(--line);color:#dce7f4;text-align:left;border-radius:10px;font-size:12px}.suggestion-grid span{float:right;color:var(--cyan)}.message-list{max-width:850px;margin:0 auto}.message{display:flex;gap:14px;margin:24px 0;align-items:flex-start}.message-avatar{flex:none;width:30px;height:30px;border-radius:10px;background:#1a3044;color:var(--cyan);display:grid;place-items:center;font-size:12px;font-weight:800}.message.user .message-avatar{background:#29324a;color:#c5d0ff}.message-body{min-width:0;flex:1;font-size:14px;line-height:1.75;color:#e4ebf5;overflow-wrap:anywhere}.message-body p{margin:0 0 12px}.message-body h1,.message-body h2,.message-body h3{font-family:Manrope;line-height:1.3;margin:18px 0 9px}.message-body ul,.message-body ol{padding-left:22px}.message-body pre{overflow:auto;background:#080e18;border:1px solid var(--line);border-radius:10px;padding:15px}.message-body code{font-family:ui-monospace,monospace;background:#182538;padding:2px 5px;border-radius:4px}.message-body pre code{background:none;padding:0}.message-body a{color:var(--cyan)}.composer-wrap{flex:none;padding:12px 22px 18px}.composer{max-width:850px;margin:auto;display:flex;align-items:flex-end;gap:10px;background:#121e2e;border:1px solid #34445b;border-radius:16px;padding:10px}.composer textarea{flex:1;min-height:28px;max-height:180px;resize:vertical;border:0;outline:0;background:transparent;color:#fff;padding:7px 3px;font-size:14px}.composer textarea::placeholder{color:#8494aa}.attach-btn,.send-btn{width:34px;height:34px;flex:none;border:0;border-radius:9px;background:#20324a;color:#dce9f7;font-size:21px}.send-btn{background:var(--gradient);color:#07111d;font-weight:800}.composer-note{text-align:center;color:#728198;font-size:10px;margin:10px auto 0}.attachment-list{max-width:850px;margin:0 auto 8px;display:flex;gap:8px;flex-wrap:wrap}.attachment-chip{background:#17283d;border:1px solid var(--line);border-radius:8px;padding:7px 10px;font-size:11px;color:#cbd7e5}.attachment-chip button{border:0;background:none;color:#ffb0b0;margin-left:8px}.mobile-only{display:none}.typing{color:var(--muted);font-size:13px}.file-preview{font-size:11px;color:var(--cyan);margin-top:8px}@media(max-width:760px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;z-index:5;inset:0 auto 0 0;width:270px;transform:translate(-105%);transition:transform .2s}.sidebar.open{transform:translate(0)}.mobile-only{display:block}.chat-header{padding:0 14px}.conversation{padding:20px 15px}.composer-wrap{padding:10px 12px 14px}.suggestion-grid{grid-template-columns:1fr}.welcome{margin-top:6vh}.auth-card{padding:27px 22px}}