:root{color-scheme:light;--bg-page:#0b141a;--bg-surface:#f0f2f5;--bg-panel:#ffffff;--bg-sidebar:#111b21;--bg-sidebar-soft:#202c33;--bg-chat:#efeae2;--bg-composer:#f0f2f5;--bg-input:#ffffff;--text-main:#111b21;--text-soft:#667781;--text-inverse:#e9edef;--line:#d1d7db;--accent:#00a884;--accent-strong:#008069;--bubble-in:#d9fdd3;--bubble-out:#ffffff;--warning:#fff3c2;--shadow:0 6px 28px rgba(11,20,26,0.12);--font-sans:"Segoe UI","Helvetica Neue",Helvetica,sans-serif}*{box-sizing:border-box}body,html{margin:0;height:100%;overflow:hidden;font-family:var(--font-sans);background:linear-gradient(180deg,#00a884 0 17%,#e2e8ec 17% 100%);color:var(--text-main)}button,input{font:inherit}button{border:0}.app-shell,.login-shell{height:100vh;padding:32px}.app-shell{overflow:hidden}.login-shell{display:grid;place-items:center}.login-card{width:min(100%,440px);background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:28px;padding:32px;box-shadow:0 30px 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