:root{--bg0: #070a12;--bg1: #0a1020;--card: rgba(255,255,255,.06);--card2: rgba(255,255,255,.04);--border: rgba(255,255,255,.12);--border2: rgba(255,255,255,.18);--text: rgba(255,255,255,.92);--muted: rgba(255,255,255,.66);--accent: #ffcc6a;--blue: #5ab6ff;--shadow: 0 18px 60px rgba(0,0,0,.55);--shadow2: 0 10px 30px rgba(0,0,0,.45);--r16: 16px;--r18: 18px;--r20: 20px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:radial-gradient(1100px 700px at 15% 20%,rgba(90,182,255,.14),transparent 55%),radial-gradient(900px 600px at 85% 25%,rgba(138,107,255,.14),transparent 55%),radial-gradient(1100px 700px at 55% 92%,rgba(255,204,106,.1),transparent 60%),linear-gradient(180deg,var(--bg1),var(--bg0))}button,input,select{font:inherit;color:inherit}.app-shell{padding:14px;height:100vh}.sidebar,.main{background:#0a0c1273;border:1px solid var(--border);border-radius:var(--r20);box-shadow:var(--shadow2);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}.header{border-bottom:1px solid rgba(255,255,255,.1);background:#ffffff08;border-top-left-radius:var(--r20);border-top-right-radius:var(--r20)}.composer{background:#00000038;border-bottom-left-radius:var(--r20);border-bottom-right-radius:var(--r20)}select,input[type=text],input{width:100%;padding:12px 14px;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:#ffffff0f;outline:none;box-shadow:0 0 #0000;transition:border-color .15s ease,transform .1s ease,background .15s ease}select:focus,input:focus{border-color:#5ab6ff73;background:#ffffff14}input::placeholder{color:#ffffff73}button{border:1px solid rgba(255,255,255,.14);background:#ffffff0f;padding:10px 12px;border-radius:14px;cursor:pointer;transition:transform .1s ease,background .15s ease,border-color .15s ease,opacity .15s ease}button:hover{background:#ffffff17;border-color:#fff3;transform:translateY(-1px)}button:active{transform:translateY(0)}button:disabled{opacity:.45;cursor:not-allowed}.btn-primary.primary{background:linear-gradient(135deg,#5ab6ff38,#ffffff14);border-color:#5ab6ff59}.btn-primary.primary:hover{border-color:#5ab6ff8c}.btn-danger{background:#ff50501f;border-color:#ff505052}.btn-danger:hover{border-color:#ff505085}.btn-toggle{padding:10px 12px;border-radius:14px;background:#ffffff0d}.btn-toggle.active{border-color:#5ab6ff80;background:#5ab6ff24}.model-select{border-radius:14px}.neo-messages::-webkit-scrollbar,.sidebar::-webkit-scrollbar{width:10px}.neo-messages::-webkit-scrollbar-thumb,.sidebar::-webkit-scrollbar-thumb{background:#ffffff1f;border-radius:999px;border:2px solid rgba(0,0,0,.2)}.neo-messages::-webkit-scrollbar-thumb:hover,.sidebar::-webkit-scrollbar-thumb:hover{background:#ffffff2e}