*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.container{justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:#fff;border-radius:20px;width:400px;padding:40px;box-shadow:0 20px 60px #0000004d}.login-card h1{text-align:center;color:#333;margin-bottom:10px}.login-card p{text-align:center;color:#666;margin-bottom:30px}.form-group{margin-bottom:20px}.form-group label{color:#333;margin-bottom:8px;font-weight:500;display:block}.form-group input{border:1px solid #ddd;border-radius:8px;width:100%;padding:12px;font-size:14px}button{color:#fff;cursor:pointer;background:#667eea;border:none;border-radius:8px;width:100%;padding:12px;font-size:16px}button:hover{background:#5a67d8}.error{color:#991b1b;text-align:center;background:#fee2e2;border-radius:8px;margin-bottom:20px;padding:10px}