.app{min-height:100vh}.app-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:1.5rem 2rem;box-shadow:0 2px 10px #0000001a}.app-header h1{font-size:1.8rem;margin-bottom:1rem}.tabs{display:flex;gap:.5rem}.tabs button{background:#fff3;border:none;color:#fff;padding:.5rem 1.5rem;border-radius:6px;cursor:pointer;font-size:.9rem;transition:all .3s}.tabs button:hover{background:#ffffff4d}.tabs button.active{background:#fff;color:#667eea}.app-main{max-width:1400px;margin:0 auto;padding:2rem}.loading{display:flex;justify-content:center;align-items:center;height:100vh;font-size:1.2rem;color:#666}.card{background:#fff;border-radius:8px;padding:1.5rem;margin-bottom:1.5rem;box-shadow:0 2px 8px #0000001a}.card h2{margin-bottom:1rem;color:#333;font-size:1.3rem}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}