:root{color-scheme:dark;--bg:#090b10;--side:#0d1017;--panel:#121620;--line:rgba(255,255,255,.08);--text:#f3f5fa;--muted:#8b93a5;--violet:#8b5cf6;--cyan:#22d3ee}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:"DM Sans",sans-serif;height:100vh;overflow:hidden}.aurora{position:fixed;border-radius:50%;filter:blur(130px);opacity:.12;pointer-events:none}.a1{width:500px;height:500px;background:var(--violet);top:-300px;left:28%}.a2{width:420px;height:420px;background:var(--cyan);right:-260px;bottom:-260px}button,textarea{font:inherit}button{cursor:pointer}#sidebar{position:fixed;inset:0 auto 0 0;width:270px;background:rgba(13,16,23,.94);border-right:1px solid var(--line);padding:20px 14px;display:flex;flex-direction:column;backdrop-filter:blur(24px);z-index:5}.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 22px;font:800 20px Manrope}.brand span{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--violet),var(--cyan));box-shadow:0 10px 30px rgba(139,92,246,.28)}.new-chat{height:44px;border:1px solid var(--line);border-radius:12px;background:#151925;color:white;text-align:left;padding:0 14px;font-weight:600}.new-chat:hover{background:#1a1f2c}.side-title{font-size:10px;letter-spacing:.16em;color:#697185;margin:24px 10px 9px}#history{display:flex;flex-direction:column;gap:4px;overflow:auto}#history button{border:0;border-radius:9px;background:transparent;color:#9ea6b7;text-align:left;padding:10px 11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#history button:hover,#history button.active{background:rgba(255,255,255,.055);color:white}footer{margin-top:auto;border-top:1px solid var(--line);padding-top:14px}.profile{display:flex;align-items:center;gap:10px;padding:8px}.profile>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#242a38;font-weight:700}.profile div{display:flex;flex-direction:column}.profile b{font-size:13px}.profile small{font-size:11px;color:var(--muted)}main{margin-left:270px;height:100vh;display:grid;grid-template-rows:64px 1fr auto;position:relative}header{border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px;background:rgba(9,11,16,.55);backdrop-filter:blur(16px)}header>div{display:flex;align-items:center;gap:12px}header b{font:700 14px Manrope}.online{font-size:11px;color:#56d9a2}header button,.mobile-menu{border:0;background:transparent;color:#8991a2;font-size:20px}.messages{overflow-y:auto;padding:36px max(24px,calc((100% - 820px)/2)) 20px;scroll-behavior:smooth}.welcome{text-align:center;max-width:760px;margin:10vh auto 0;animation:rise .55s ease both}.hero-orb{width:66px;height:66px;margin:auto;display:grid;place-items:center;border-radius:22px;background:radial-gradient(circle at 30% 20%,#bdabff,#6d4ced 55%,#145d73);font-size:25px;box-shadow:0 22px 70px rgba(108,76,237,.3);transform:rotate(8deg)}h1{font:800 clamp(32px,5vw,48px)/1.1 Manrope;margin:24px 0 12px;letter-spacing:-.04em}.welcome>p{color:var(--muted);line-height:1.6}.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:34px}.suggestions button{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);background:rgba(18,22,32,.7);color:#d7dbe5;padding:15px 16px;border-radius:14px;text-align:left}.suggestions button:hover{border-color:rgba(139,92,246,.5);background:rgba(139,92,246,.08);transform:translateY(-1px)}.suggestions span{color:#7c8497}.message{display:flex;gap:13px;margin:0 0 28px;animation:rise .3s ease both}.avatar{flex:0 0 32px;height:32px;border-radius:10px;display:grid;place-items:center;background:#232837;font-size:13px}.message.assistant .avatar{background:linear-gradient(135deg,#7554e8,#17829a)}.bubble{max-width:calc(100% - 46px);line-height:1.7;color:#e8eaf0;white-space:pre-wrap;overflow-wrap:anywhere}.message.user .bubble{background:#171b25;border:1px solid var(--line);border-radius:16px;padding:11px 15px}.typing{display:flex;gap:5px;padding-top:9px}.typing i{width:6px;height:6px;background:#8d96a9;border-radius:50%;animation:bounce 1.2s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}.composer{padding:10px max(24px,calc((100% - 820px)/2)) 18px;background:linear-gradient(transparent,var(--bg) 28%)}.composer-inner{display:flex;align-items:flex-end;gap:10px;border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:10px 10px 10px 16px;background:#121620;box-shadow:0 18px 60px rgba(0,0,0,.3)}textarea{flex:1;resize:none;max-height:180px;background:transparent;border:0;outline:0;color:white;line-height:1.5;padding:7px 0}textarea::placeholder{color:#697185}#sendBtn{width:38px;height:38px;border:0;border-radius:12px;background:linear-gradient(135deg,#8b5cf6,#4f7de8);color:white;font-size:20px;font-weight:700}.composer>small{display:block;text-align:center;color:#565e70;font-size:10px;margin-top:8px}.mobile-menu{display:none;position:fixed;z-index:7;top:17px;left:15px}@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}@keyframes bounce{0%,60%,100%{transform:none;opacity:.45}30%{transform:translateY(-5px);opacity:1}}#overlay{display:none}@media(max-width:760px){#sidebar{transform:translateX(-100%);transition:.25s}#sidebar.open{transform:none}.mobile-menu{display:block}main{margin-left:0}header{padding-left:56px}.messages{padding:26px 16px}.composer{padding:8px 12px 12px}.suggestions{grid-template-columns:1fr}.welcome{margin-top:5vh}#overlay.show{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:4}}