*{margin:0;padding:0;box-sizing:border-box}html,body{overscroll-behavior-y:contain}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Source Sans Pro,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}#root{width:100%;height:100dvh}.login-container{background:#fff;padding:40px;border-radius:12px;box-shadow:0 10px 40px #0003;width:90%;max-width:360px;text-align:center;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.login-container h1{color:#667eea;margin-bottom:30px;font-size:28px}.form-group{margin-bottom:20px;text-align:left}.form-group label{display:block;margin-bottom:8px;color:#333;font-weight:500;font-size:14px}.form-group input{width:100%;padding:12px;border:1px solid #ddd;border-radius:6px;font-size:14px;transition:border-color .3s}.form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-group input::placeholder{color:#999}button{padding:12px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}button:hover{transform:translateY(-2px);box-shadow:0 5px 20px #667eea66}button:active{transform:translateY(0)}button:disabled{opacity:.6;cursor:not-allowed;transform:none}.loading{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error{background-color:#fee;color:#c33;padding:12px;border-radius:6px;margin-bottom:20px;font-size:14px;border:1px solid #fcc}.success{background-color:#efe;color:#3c3;padding:12px;border-radius:6px;margin-bottom:20px;font-size:14px;border:1px solid #cfc}.welcome-container{text-align:center;color:#fff}.welcome-container h1{font-size:36px;margin-bottom:20px}.welcome-container p{font-size:18px;margin-bottom:10px}.welcome-container .user-info{background:#ffffff1a;padding:20px;border-radius:8px;margin-top:30px}@media (max-width: 600px){.login-container{width:95%;padding:30px 20px}.login-container h1{font-size:24px}.welcome-container h1{font-size:28px}}