*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.ant-layout{min-height:100vh}.ant-layout-sider{border-right:1px solid rgba(0,0,0,.06)}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.auth-card{width:440px;padding:40px;border-radius:12px;background:#fff;box-shadow:0 20px 60px #00000026}.chat-container{display:flex;height:calc(100vh - 64px)}.chat-sidebar{width:280px;border-right:1px solid #f0f0f0;overflow-y:auto}.chat-main{flex:1;display:flex;flex-direction:column}.chat-messages{flex:1;overflow-y:auto;padding:24px}.chat-input-area{border-top:1px solid #f0f0f0;padding:16px 24px}.stat-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-bottom:24px}.chart-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px}.chart-row.single{grid-template-columns:1fr}@media (max-width: 1200px){.chart-row{grid-template-columns:1fr}}