:root{--bg:#08080d;--panel:#111119;--panel-2:#181820;--border:#24242e;--text:#e6e9ef;--muted:#8b93a7;--accent:#7c5fdd;--accent-2:#06ccc4;--good:#3ecf8e;--bad:#ff6b6b}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--accent-2);text-decoration:none}button{background:linear-gradient(135deg,var(--accent) 0,var(--accent-2) 100%);color:#fff;border:0;border-radius:10px;padding:11px 16px;font-weight:600;cursor:pointer;font-size:14px;transition:filter .15s,transform .05s}button:hover{filter:brightness(1.06)}button:active{transform:translateY(1px)}button.ghost{background:var(--panel-2);border:1px solid var(--border);color:var(--text)}button:disabled{opacity:.5;cursor:not-allowed}button.sso{background:hsla(0,0%,100%,.04);color:#f1f5f9;border:1px solid hsla(0,0%,100%,.12);border-radius:10px;padding:11px 16px;display:flex;align-items:center;justify-content:center;gap:10px;font-weight:600}button.sso:hover{background:hsla(0,0%,100%,.08);border-color:hsla(0,0%,100%,.2);filter:none}button.sso svg{width:18px;height:18px;display:block}input,textarea{width:100%;background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:10px 12px;font-size:14px;outline:none}input:focus,textarea:focus{border-color:var(--accent)}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 22px;border-bottom:1px solid var(--border);background:var(--panel)}.brand{font-weight:800;letter-spacing:-.02em}.brand .dot{color:var(--accent-2)}.container{max-width:980px;margin:0 auto;padding:26px 22px}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:18px}.row{display:flex;gap:12px;align-items:center}.muted{color:var(--muted)}.grid{display:grid;grid-gap:12px;gap:12px}.appitem{justify-content:space-between;padding:14px 16px;border:1px solid var(--border);border-radius:10px;background:var(--panel-2)}.appitem,.center{display:flex;align-items:center}.center{min-height:80vh;justify-content:center}.auth-page{position:relative;min-height:100vh;background:var(--bg);background-image:radial-gradient(900px 500px at 50% -10%,rgba(124,95,221,.18),transparent 60%)}.auth-topbar{padding:22px 26px}.auth-center{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 80px);padding:0 16px 8vh}.authcard{width:380px;max-width:100%;display:flex;flex-direction:column;gap:14px}.authcard-title{font-size:26px;font-weight:800;letter-spacing:-.02em;text-align:center}.authcard-sub{font-size:14px;text-align:center;margin-top:-8px;margin-bottom:8px;color:hsla(0,0%,100%,.5)}.authcard-switch{font-size:13px;text-align:center;margin-top:8px;color:hsla(0,0%,100%,.6)}.field{display:flex;flex-direction:column;gap:6px;text-align:left}.field label{font-size:12.5px;font-weight:500;color:hsla(0,0%,100%,.7)}.pwfield{position:relative}.pwfield input{padding-right:56px}.pwfield .toggle{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:0;color:var(--accent-2);font-size:12.5px;font-weight:600;padding:0;width:auto}.divider{display:flex;align-items:center;gap:10px;color:hsla(0,0%,100%,.4);font-size:12px;margin:6px 0}.divider:after,.divider:before{content:"";flex:1 1;height:1px;background:hsla(0,0%,100%,.12)}button.pill{border-radius:100px;padding:12px 16px;color:#fff;font-weight:700}button.pill:disabled{opacity:1;color:hsla(0,0%,100%,.85)}.authbox{width:360px}.pill{font-size:12px;padding:3px 9px;border-radius:999px;border:1px solid var(--border);color:var(--muted)}.err{color:var(--bad);font-size:13px}.builder{display:grid;grid-template-columns:380px 1fr;grid-gap:0;gap:0;height:calc(100vh - 57px)}.chat{border-right:1px solid var(--border);display:flex;flex-direction:column;background:var(--panel)}.chatlog{flex:1 1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.msg{padding:10px 12px;border-radius:10px;font-size:14px;line-height:1.45}.msg.user{background:var(--panel-2);align-self:flex-end;max-width:90%}.msg.ai{background:#171b27;border:1px solid var(--border);max-width:95%}.chatinput{padding:12px;border-top:1px solid var(--border);display:flex;gap:8px}.preview{display:flex;flex-direction:column}.previewbar{padding:10px 14px;border-bottom:1px solid var(--border);display:flex;gap:12px;align-items:center;background:var(--panel)}iframe{flex:1 1;border:0;background:#fff;width:100%}.h1{font-size:22px;font-weight:800;letter-spacing:-.02em;margin:0 0 4px}