:root{
  --bg:#070b18;--bg2:#040711;--panel:#0d1428;--panel2:#111b36;--panel3:#17213f;--line:#24304f;--text:#eef3ff;--muted:#9aa8c7;--brand:#8b5cf6;--brand2:#22a7ff;--danger:#ff5c7a;--ok:#34d399;--warning:#f59e0b;--radius:18px;--shadow:0 24px 80px rgba(0,0,0,.45);--glass:rgba(13,20,40,.82);--blur:18px;--userBubble:#176ed9;--assistantBubble:#15203d;--codeBg:#050914;
}
*{box-sizing:border-box}html{height:100%}body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,Segoe UI,Arial,sans-serif;background:var(--pageBg,radial-gradient(circle at 20% 10%,color-mix(in srgb,var(--brand) 28%,transparent) 0,var(--bg) 34%,var(--bg2) 100%));color:var(--text);transition:background .25s ease,color .25s ease}body::before{content:"";position:fixed;inset:0;z-index:-2;background:var(--pageBg,radial-gradient(circle at 20% 10%,color-mix(in srgb,var(--brand) 28%,transparent) 0,var(--bg) 34%,var(--bg2) 100%));transition:.25s}body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:radial-gradient(circle at 15% 20%, color-mix(in srgb,var(--brand) 18%,transparent) 0 2px, transparent 3px),radial-gradient(circle at 80% 70%, color-mix(in srgb,var(--brand2) 14%,transparent) 0 2px, transparent 3px);background-size:90px 90px;opacity:var(--particleOpacity,.25);animation:floatBg 18s linear infinite}.no-particles::after{display:none}@keyframes floatBg{to{background-position:90px 90px,-90px -90px}}
body.theme-light{--bg:#f4f7ff;--bg2:#e8eefb;--panel:#ffffff;--panel2:#f2f5fc;--panel3:#e9eef9;--line:#d7ddeb;--text:#111827;--muted:#667085;--glass:rgba(255,255,255,.82);--assistantBubble:#ffffff;--userBubble:#2563eb;--codeBg:#0b1020;--shadow:0 24px 80px rgba(31,41,55,.16);--particleOpacity:.12}
body.theme-ocean{--bg:#041827;--bg2:#02101b;--panel:#082033;--panel2:#0d2b42;--panel3:#123b5d;--line:#1b5778;--brand:#06b6d4;--brand2:#38bdf8;--assistantBubble:#0b2a42;--userBubble:#0284c7}
body.theme-purple{--bg:#12051f;--bg2:#080311;--panel:#1a0b2d;--panel2:#24103f;--panel3:#32165a;--line:#573083;--brand:#a855f7;--brand2:#ec4899;--assistantBubble:#25113d;--userBubble:#7c3aed}
body.theme-emerald{--bg:#031b13;--bg2:#02100b;--panel:#09261b;--panel2:#0e3527;--panel3:#164b39;--line:#216a50;--brand:#10b981;--brand2:#34d399;--assistantBubble:#0c2d21;--userBubble:#059669}
body.theme-crimson{--bg:#22070c;--bg2:#110306;--panel:#2d0b12;--panel2:#42111c;--panel3:#5b1827;--line:#7f2438;--brand:#f43f5e;--brand2:#fb7185;--assistantBubble:#3a1019;--userBubble:#e11d48}
body.theme-sunset{--bg:#261006;--bg2:#120803;--panel:#321407;--panel2:#4a210c;--panel3:#633012;--line:#884617;--brand:#f97316;--brand2:#f59e0b;--assistantBubble:#3d1b09;--userBubble:#ea580c}
body.theme-gold{--bg:#1e1803;--bg2:#0d0a01;--panel:#2c2306;--panel2:#3f330a;--panel3:#57460f;--line:#7c6419;--brand:#eab308;--brand2:#fde047;--assistantBubble:#372d08;--userBubble:#ca8a04}
body.theme-pink{--bg:#240717;--bg2:#12030b;--panel:#330b22;--panel2:#48102f;--panel3:#641642;--line:#8b255d;--brand:#ec4899;--brand2:#f472b6;--assistantBubble:#3b1029;--userBubble:#db2777}
body.theme-cyan{--bg:#031b22;--bg2:#010e12;--panel:#092a34;--panel2:#0d3b49;--panel3:#125365;--line:#1c7187;--brand:#22d3ee;--brand2:#67e8f9;--assistantBubble:#0c303b;--userBubble:#0891b2}
body.theme-midnight{--bg:#000;--bg2:#050505;--panel:#080808;--panel2:#111;--panel3:#181818;--line:#2b2b2b;--brand:#fff;--brand2:#9ca3af;--assistantBubble:#111;--userBubble:#303030;--particleOpacity:.08}
body.theme-rainbow{--pageBg:linear-gradient(-45deg,#070b18,#181033,#032b3a,#13230a,#32091d);background-size:400% 400%;animation:rainbowShift 14s ease infinite}body.theme-rainbow::before{background:var(--pageBg);background-size:400% 400%;animation:rainbowShift 14s ease infinite}@keyframes rainbowShift{0%{background-position:0 50%}50%{background-position:100% 50%}100%{background-position:0 50%}}
body.bg-solid{--pageBg:linear-gradient(180deg,var(--bg),var(--bg2))}body.bg-gradient{--pageBg:radial-gradient(circle at 20% 10%,color-mix(in srgb,var(--brand) 30%,transparent) 0,var(--bg) 35%,var(--bg2) 100%)}body.bg-neon{--pageBg:radial-gradient(circle at 15% 10%,color-mix(in srgb,var(--brand) 40%,transparent),transparent 28%),radial-gradient(circle at 85% 75%,color-mix(in srgb,var(--brand2) 32%,transparent),transparent 30%),linear-gradient(145deg,var(--bg2),var(--bg))}body.bg-amoled{--pageBg:#000;--bg:#000;--bg2:#000}.app-shell{height:100vh;display:grid;grid-template-columns:310px 1fr 290px;overflow:hidden}.sidebar,.right,.topbar,.composer,.modal-card,.auth-card,.admin-card,.admin-table{background:var(--glass);backdrop-filter:blur(var(--blur));-webkit-backdrop-filter:blur(var(--blur));border-color:var(--line);transition:background .25s,border-color .25s,color .25s}.sidebar,.right{border-right:1px solid var(--line);padding:18px;display:flex;flex-direction:column;gap:14px}.right{border-right:0;border-left:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center}.logo,.avatar{width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;font-weight:950;color:#fff;box-shadow:0 12px 35px color-mix(in srgb,var(--brand) 45%,transparent)}.brand h1{font-size:22px;margin:0}.brand span,.topbar p,.user-card span,small{color:var(--muted);font-size:13px}.new,.send,.auth-card button,.primary-btn{border:0;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;padding:14px 18px;font-weight:850;cursor:pointer;box-shadow:0 14px 34px color-mix(in srgb,var(--brand) 24%,transparent);transition:.2s}.new:hover,.send:hover,.primary-btn:hover{transform:translateY(-1px);filter:saturate(1.1)}.select,.search,.auth-card input,.theme-input{width:100%;background:var(--panel2);border:1px solid var(--line);color:var(--text);border-radius:14px;padding:13px;outline:none}.sidebar h3,.right h3{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.12em;margin:8px 0 0}.chat-list{display:flex;flex-direction:column;gap:8px;overflow:auto}.chat-item{padding:12px;border:1px solid var(--line);background:linear-gradient(180deg,var(--panel3),var(--panel2));border-radius:14px;cursor:pointer;transition:.2s}.chat-item:hover,.chat-item.active{border-color:var(--brand);transform:translateY(-1px);box-shadow:0 8px 26px color-mix(in srgb,var(--brand) 16%,transparent)}.chat-item b{display:block;font-size:14px}.chat-item span{color:var(--muted);font-size:12px}.side-bottom{margin-top:auto;display:grid;grid-template-columns:1fr 1fr;gap:8px}.side-btn{background:var(--panel2);border:1px solid var(--line);border-radius:13px;color:var(--text);padding:12px;text-align:center;text-decoration:none;cursor:pointer;transition:.2s}.side-btn:hover{border-color:var(--brand);transform:translateY(-1px)}.main{display:flex;flex-direction:column;min-width:0}.topbar{height:90px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px}.topbar h2{margin:0}.pin{background:var(--panel2);border:1px solid var(--line);border-radius:13px;color:var(--text);padding:12px;cursor:pointer}.messages{flex:1;overflow:auto;padding:30px 7vw 150px;scroll-behavior:smooth}.msg{display:flex;gap:14px;margin:18px 0;animation:pop .25s ease}.msg.user{justify-content:flex-end}.bubble{max-width:min(840px,82%);background:var(--assistantBubble);border:1px solid var(--line);padding:16px 18px;border-radius:22px;line-height:1.58;box-shadow:0 15px 50px rgba(0,0,0,.18);overflow-wrap:anywhere}.user .bubble{background:linear-gradient(135deg,var(--userBubble),var(--brand2));color:#fff}.bubble p:first-child{margin-top:0}.bubble p:last-child{margin-bottom:0}.bubble pre{position:relative;background:var(--codeBg);border:1px solid var(--line);padding:42px 14px 14px;border-radius:14px;overflow:auto}.copy-code{position:absolute;right:10px;top:8px;background:var(--panel3);border:1px solid var(--line);color:var(--text);border-radius:9px;padding:6px 10px;cursor:pointer}.composer{position:fixed;left:calc(310px + 8vw);right:calc(290px + 8vw);bottom:28px;border:1px solid var(--line);border-radius:26px;padding:12px;display:flex;align-items:flex-end;gap:10px;box-shadow:var(--shadow)}.composer textarea{flex:1;resize:none;max-height:190px;background:transparent;border:0;outline:0;color:var(--text);font-size:16px;padding:13px}.composer button{min-width:48px;height:48px;border:0;border-radius:14px;background:var(--panel2);color:var(--text);cursor:pointer}.composer .send{background:linear-gradient(135deg,var(--brand),var(--brand2));font-size:20px}.emoji-panel{position:absolute;right:70px;bottom:70px;width:340px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:12px;display:none;grid-template-columns:repeat(7,1fr);gap:8px;box-shadow:var(--shadow);z-index:12}.emoji-panel.open{display:grid}.emoji-panel button{font-size:22px}.user-card,.usage,.files{background:var(--panel2);border:1px solid var(--line);border-radius:17px;padding:14px}.usage div,.files div{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:10px 0;color:var(--muted);gap:8px}.usage div:last-child,.files div:last-child{border:0}.modal{position:fixed;inset:0;z-index:50;display:none;place-items:center;background:rgba(0,0,0,.55);padding:20px}.modal.open{display:grid}.modal-card{width:min(1040px,96vw);max-height:92vh;overflow:auto;border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:var(--shadow)}.modal-head{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:16px}.modal-head h2{margin:0}.close-btn{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:10px 13px;cursor:pointer}.theme-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.theme-card{border:1px solid var(--line);background:var(--panel2);border-radius:18px;padding:14px;cursor:pointer;transition:.18s;text-align:left;color:var(--text)}.theme-card:hover,.theme-card.active{border-color:var(--brand);transform:translateY(-2px)}.swatches{height:54px;border-radius:14px;margin-bottom:10px;display:flex;overflow:hidden;border:1px solid rgba(255,255,255,.12)}.swatches span{flex:1}.theme-tools{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}.tool-card{border:1px solid var(--line);background:var(--panel2);border-radius:18px;padding:16px}.accent-row,.bg-row{display:flex;flex-wrap:wrap;gap:10px}.accent-dot{width:38px;height:38px;border-radius:50%;border:2px solid var(--line);cursor:pointer}.accent-dot.active{outline:3px solid color-mix(in srgb,var(--brand) 55%,transparent)}.chip{border:1px solid var(--line);background:var(--panel3);color:var(--text);border-radius:999px;padding:10px 13px;cursor:pointer}.chip.active{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 16%,transparent)}.custom-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.custom-row label{font-size:13px;color:var(--muted)}.custom-row input[type=color]{width:100%;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--panel3)}.auth{min-height:100vh;display:grid;place-items:center;padding:20px}.auth-card{width:min(440px,92vw);border:1px solid var(--line);border-radius:30px;padding:30px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}.auth-card h2{margin:10px 0}.auth-card a{color:var(--brand2)}.error{background:color-mix(in srgb,var(--danger) 20%,transparent);border:1px solid color-mix(in srgb,var(--danger) 55%,transparent);color:var(--text);border-radius:12px;padding:12px}.admin-wrap{padding:24px}.admin-top{display:flex;justify-content:space-between;align-items:center}.admin-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.admin-card,.admin-table{border:1px solid var(--line);border-radius:18px;padding:16px}.admin-table{width:100%;border-collapse:collapse;margin-top:14px;overflow:hidden}td,th{padding:12px;border-bottom:1px solid var(--line);text-align:left}@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.thinking::after{content:'...';animation:dots 1s infinite}@keyframes dots{0%{content:'.'}33%{content:'..'}66%{content:'...'}}@media(max-width:1100px){.app-shell{grid-template-columns:260px 1fr}.right{display:none}.composer{left:calc(260px + 18px);right:18px}.theme-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:820px){.theme-tools,.custom-row{grid-template-columns:1fr}.theme-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.app-shell{display:block}.sidebar{position:fixed;z-index:30;left:-305px;top:0;bottom:0;width:292px;transition:.25s}.sidebar.open{left:0}.topbar{height:76px;padding:0 16px}.messages{padding:20px 14px 135px}.composer{left:12px;right:12px;bottom:12px}.bubble{max-width:92%}.admin-cards{grid-template-columns:1fr 1fr}.theme-grid{grid-template-columns:1fr}.side-bottom{grid-template-columns:1fr 1fr}}